Abstract:
Moistening fluids are disclosed that are capable of being used in mail processing machines and systems. Mail processing equipment can automatically feed and moisten envelopes at slow to very high speeds of 30 inches per second. The moistening system becomes contaminated with paper dust, talc, and common envelope adhesives. The moistening fluids kill many types of bacteria, fungi, and inhibit the growth of other types of bacteria, fungi, and algae. The moistening fluids of this invention are safe for use in an office environment, i.e., they are non-toxic, have a pleasant odor, are non-flammable and may be transported by common carriers without any safety precautions. The moistening fluid contains: detergent, biocide, alcohol, dye, de-ionized water and a fragrance.

Description:
FIELD OF THE INVENTION  
       [0001]     The invention relates generally to moistening fluids and more particularly to moistening fluids that destroys and/or inhibit the growth of biological organisms.  
       CROSS REFERENCE TO RELATED APPLICATIONS  
       [0002]     Reference is made to commonly assigned co-pending patent application Ser. No. 11/011,268 filed Dec. 14, 2004, entitled “MOISTENING FLUIDS THAT DESTROY AND/OR INHIBIT THE GROWTH OF BIOLOGICAL ORGANISMS” in the names of Maureen A. Spisinski, Richard A. Bernard and William E. Ryan, JR.  
       BACKGROUND OF THE INVENTION  
       [0003]     In mail processing systems, moistening devices are used to wet the flap of an envelope in preparation for sealing the envelope or moistening a tape for sealing objects, or adhering labels. Conventionally, flap wetting is accomplished by feeding the envelopes flaps past a moisture applicator such as a brush, a wick, or other moist surface, allowing the moist surface to come into contact with the water-moistening adhesive on the envelope flap. The prior art also utilized sprayer systems to moisten envelope flaps. The moisture causes the adhesive to soften and to become sticky. The moistened envelopes&#39; flaps are closed and the adhesive is pressed between the flap and the body of the envelope to form a seal. The envelope is then either ejected into a stacker, or passed on to another part of the mail processing system for further processing.  
         [0004]     Envelope flap moistening devices generally fall into two categories, contact and non-contact moistening devices. Contact systems generally deposit moisture onto an envelope flap by contact with a wetted substrate or narrow slotted device that allows fluid to flow, based upon the capillary action of the slotted device&#39;s contact with the flap. Non-contact systems generally spray moisture onto the envelope flap. In non-contact flap moistening systems, envelope flap moistening has been performed with a nozzle and the aid of a pumping system. In the aforementioned systems the moistening fluid is stored in a reservoir or remains in internal tubing, where certain types of bacteria, fungi, and algae have an opportunity to grow.  
         [0005]     The bacteria, fungi and algae have a natural source of food because the envelope adhesive generally contains dextrin i.e., a corn and/or potato starch.  
         [0006]     The following microorganisms were found in representative samples taken from moistening systems:  Sphingomonas paucimobilis  (bacteria);  Geotrichum  species (fungus); Yeasts;  Pseudomonas stutzeri  (bacteria);  Fusarium  species (mold);  Aspergillus niger  (mold);  Acinetobacter  species (bacteria); Blue green algae;  Caulobacter  species (bacteria);  Pseudomonas aeruqinosa  (bacteria);  Pseudomonas fluorescens  (bacteria);  Brevendimonas  species (bacteria);  Flavomonas  species (bacteria);  Cladosporium  species (fungus);  Oididendron  species (fungus)  Penicillium  species (mold).  
         [0007]     A disadvantage of current moistening devices is that they use moistening fluids that are conducive to the growth of bacteria, fungi, and algae.  
         [0008]     Another disadvantage of current moistening devices is that sometimes-significant amounts of bacteria, fungi, and algae grow before the moistening fluid is completely used, and due to the inappropriate selection of a biocide or an insufficient concentration of the biocide, it is not adequate to stop growth.  
         [0009]     A further disadvantage of current moistening devices is that the growth of bacteria, fungi, and algae may result in the inconsistent wicking of the substrate causing it to become unevenly saturated, which results in decreased moistening and/or clogging of the filters and tubing in moistening systems.  
         [0010]     A further disadvantage of current systems is that the excessive growth of bacteria, fungi, and algae results in the production of unpleasant odors.  
         [0011]     A further disadvantage of some current moisteners is that they have an alcohol type odor.  
       SUMMARY OF THE INVENTION  
       [0012]     This invention overcomes the disadvantages of the prior art by providing moistening fluids that destroys many types of bacteria, fungi, and inhibits the growth of other types of bacteria, fungi, and algae. The moistening fluids of this invention are safe for use in an office environment, i.e., they are non-toxic and may be transported by common carriers without any safety precautions. The moistening fluids may be used in mailing systems to seal envelope flaps, adhere labels to mail pieces, i.e., letters, flats, or packages. They may also be used to adhere labels and tapes to objects. The moistening fluids may also be placed in a device or dispenser that is a stand-alone container.  
         [0013]     An advantage of this invention is that the surface tension of the moistening fluid is within the range of 28.8-31.0 dynes/cm. Disinfectants are usually solutions of low surface tension. This allows them to spread out on the cell walls of bacteria and disrupt them.  
         [0014]     Properties of the moistening fluids under consideration are conductivity, alkalinity/acidity, wicking, surface tension, corrosion resistance, moistening sealing weight, viscosity, zone of inhibition and challenge test.  
         [0015]     “Conductivity is the ability of a material to conduct electric current. Since the charge on ions in solution facilitates the conductance of electrical current, the conductivity of a solution is proportional to its ion concentration.” Thus, the conductivity is an important physical parameter in the preparation of the moistening fluids described herein, since certain moistening systems have ion detection devices which signal the user of the system that the system is low or out of moistening solution.  
         [0016]     pH is a value taken to represent the acidity or alkalinity of an aqueous solution; it is defined as the logarithm of the reciprocal of hydrogen-ion concentration of a solution.  
         [0017]     Alkalinity is the measurement of pH value above 7 and acidity is the measurement of a pH value below 7.  
         [0018]     The pH value is important, because it demonstrates the moistening fluid&#39;s ability to be handled safely and operate safely in most systems.  
         [0019]     The ability to destroy and/or inhibit the growth of certain types of bacteria, fungi, and algae is improved by the addition of detergents, biocides, and alcohols at specific ratios.  
         [0020]     A further advantage of this moistener is that it has a pleasant odor.  
         [0021]     An additional advantage of this moistener is that it has a pleasant odor masking out the alcohol smell. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0022]     The formulation of the moistening fluids of the instant invention is capable of being used in mail processing machines and systems. Composition of the moistening fluids, in accordance with the invention comprises detergent, biocide, alcohol, dye and water.  
         [0023]     The general composition of the moistening fluids is as follows:  
                                                   INGREDIENT   (WT. %)                           Detergent   Range 8.05-14.95           Biocide   Range 0.023-0.074           Alcohol   Range 4.95-6.23           Dye   Range 0.00-0.00015           Fragrance   Range .018-.070           Distilled Water   Range 78.72699-86.95900                      
 
         [0024]     The following detergents were used in the examples described herein. 
        Alkylether hydroxypropyl sultaine manufactured by Burlington Chemical of Post Office Box 111, 615 Huffman Mill Road, Burlington, N.C.        
 
         [0026]     The following biocides were used in the examples described herein: 
        1. Alkyl(C 14  50%, C 16  10%, C 12  40%) Dimethyl Benzyl Ammonium Chloride manufactured by Lonza of 17-17 Route 208, Fair Lawn, N.J.     2. 1,2-Benzisothazolin-3-one(Proxel GXL) manufactured by Avecia, Inc. of PO. Box 15457, Wilmington, Del.        
 
         [0029]     The following Alcohols were used in the examples described herein. 
    1. 2-Propanol     2. Ethanol (denatured) composed of ethyl alcohol, 95.27%; Methyl Isobutyl ketone 1.0%; Ethyl Acetate, 1.0%; Hydrocarbon, 1.0%; water ≦0.5%     3. 1-propanol    
 
         [0033]     The following Dye was used in the examples described herein.  
         [0034]     1. FD &amp;C #1 Blue Dye—(Food Drug &amp; Cosmetic #1 Blue Dye)  
         [0035]     Water  
         [0036]     De-Ionized Water  
         [0037]     The following Fragrances: were used in the examples described herein.  
         [0000]     Citrus (100% Scent) manufactured by Bell Flavors And Fragrance Inc. 500 Academy Drive Northbrook, Ill. 60062.  
         [0038]     2. French Vanilla A44676 (25% Scent) manufactured by Atlantis Aromatics, Inc. 5047 Industrial Road, Suite 4 Wall, N.J. 07719.  
         [0039]     3. Pine Tree A44680 (25% Scent) manufactured by Atlantis Aromatics, Inc. 5047 Industrial Road Wall, N.J. 07719.  
         [0040]     To determine the efficacy of the moistening fluids to inhibit and/or kill bacteria, fungi, and algae, a Zone of Inhibition test was conducted. The procedure for Zone of Inhibition testing is as follows:  
         [0041]     Equipment 
        Sterile Tryptic Soy Agar plates (TSA)     Sample contaminants in sterile diluent solution manufactured by Fabriqué au Canada par Starplex Scientific Inc., 50 Steinway Blvd., Etobicoke, Ontario, Canada     The sample contaminant used contained one or more of the following organisms: 
            1 . Geotrichum  species (fungus)     2. Yeasts     3 . Pseudomonas stutzeri  (bacteria)     4 . Fusarium  species (mold)     5 . Aspergillus niger  (mold)     6 . Acinetobacter  species (bacteria)     7. Blue green algae     8 . Caulobacter  species (bacteria)     9 . Pseudomonas aeruginosa  (bacteria)     10 . Pseudomonas fluorescens  (bacteria)     11 . Brevendimonas  species (bacteria)     12 . Flavomonas  species (bacteria)     13 . Cladosporium  species (fungus)     14.  Oididendron  species (fungus)     15 . Sphingomonas paucimobilis  (bacteria)     16 . Penicillium  species (mold    
            16 mm discs cut from Whatman 41 filter paper     Millipore 5.0 um 25 mm discs     Pall 45 um membrane filters     Metric ruler     Moistening fluid (Examples 1-21)     Distilled water     Incubating oven set for 35 0  C.        
 
         [0068]     Procedure 
        Swab sterile Tryptic Soy Agar plates (TSA) with solution of sample contaminant.     Place one disc, or membrane filter, which has been saturated with the moistening fluid on center of plate.     Saturate one disc in distilled water and utilize as a control     Incubate overnight in 35 0  C. incubating oven.     At 24-hour intervals, measure the linear distance that has been cleared of microbial growth and record from the filter disc&#39;s circumference to the outer perimeter of the cleared area. This is the Zone of inhibition.     Take measurements each 24-hour period for three (3) days.        
 
         [0075]     To determine the ability of the moistening fluids to seal envelopes in mailing systems envelope, sealing tests were performed.  
         [0076]     Equipment: #10 envelopes with water moisturizing adhesive 
        Moistening fluids, as described     Mettler PE 3600 balance     Moistening Mailing system(s)     Deionized and/or Distilled water     Procedure: One hundred milliliters (mls) of moistening fluid to be tested was added to the moistening fluid reservoir of the moistening mailing system.     Fifty (50) #10 envelopes with moisturizing adhesive were weighed dry.     These same fifty (50) envelopes were then sent through the moistening mailing system, in order to wet and seal the envelopes.     The 50 envelopes were re-weighed immediately to determine the amount of gross weight gain of the envelopes.     The mailing system was rinsed with either distilled or deionized water, in order to remove traces of the previously run moistening fluid. This was accomplished by running twenty-five (25) envelopes through the system with either distilled or deionized water.     This procedure was conducted a minimum of two times, for each example in order to determine the average weight gain of fifty (50) envelopes of each moistening fluid.     A baseline average weight gain was determined by averaging the gross weight gain for each group of fifty (50) envelopes tested, for each example.        
 
         [0088]     To determine the speed of wicking, i.e., the ability of a fluid to be drawn up the fibers, of a brush of a moistening system, wicking tests were performed. 
        Equipment: Esterlon (polyester) F984031, unbaked brushes, flagged 1 pass     1.5 seconds/side 
            Ring stand equipped with two side arm clamps     Lap/split timer by Fisher Scientific of Hanover Park, Ill.     Whatman 11.0 cm 40 Ashless filter paper circles     Moistening fluids as described     Sterile empty petri dishes    
            Procedure: Small ring stand with two side arm clamps was assembled in hood 
            One side arm clamp was used to hold the Esterlon brush in an upright position     The second side arm clamp held the filter paper circle fixed on the brush&#39;s fibrous end     Sterile petri dish was filled with the appropriately labeled moistening fluids     At the point where the lower end of the brush came in contact with the moistening fluids, the timer was activated to measure the time it took the moistening fluids to travel up the bristles of the brush and moisten the filter paper.     Once moisture was visible on the filter paper, the timer was stopped and the time recorded.    
               
 
         [0102]     To determine the ability of the moistening fluids to inhibit and/or destroy the growth of specific bacteria, fungi and algae, in mailing systems, the moistening fluid was subjected to Challenge Testing (Modified American Society For Testing Materials (ASTM) D-2574), with the following organisms:  
                                                         Acinetobacter  sp.     Sacchromyces                   cereviseae               Penicillium  sp.     Candida albicans               Cladosporium  sp.     Pseudomonas                   aeruginosa               Geotrichum  sp.     Escherichia coli               Caulobacter  sp.     Aspergillus niger             Mixed Algae Pond Collection   Controls of Distilled               Water and Tap               Water                      
 
         [0103]     The Challenge Test consists of a 7-day study for the above mentioned microorganisms in which each microorganism is inoculated into an aliquot of moistening fluid and subsequently tested as to the viability of each organism, after specific increments of contact time.  
         [0104]     Material: Five (5) test tubes with 9.0 ml. of sterile diluent solution for each microorganism tested; American Type Culture Collection (ATCC) cultures of specified type; Thirty-two (32) Sterile Tryptic Soy Agar plates, sterile disposable 1 ml. pipettes; pipette aids;  
         [0105]     Procedure: Obtain pure stock culture of each organism from accredited vendor, such as American Type Culture Collection (ATCC). Perform serial dilutions to determine actual inoculum microbial count for each organism.  
         [0106]     Serial dilutions performed by 
        Take five test tubes for each organism, each containing 9.0 ml. of sterile diluent solution, and label with appropriate dilution factor (i.e. 1:10; 1:100, 1:1000, 1:10,000 etc.)     Take 1 ml. of the original inoculum and inoculate the first tube of 9.0 ml. of sterile diluent solution. Mix well and plate 0.1 ml. of the diluent solution/microbial culture to each of two (2) sterile Tryptic Soy Agar plates. Draw a 1 ml. aliquot from the first dilution (1:10) and inoculate the second dilution (1:100) Mix well and plate one (1) ml. of the dilution to each of two (2) sterile Tryptic Soy Agar plates. Continue to transfer the same amount (1 ml.) to each successive dilution and mix well. Continue to plate 1 ml. of each dilution to two (2) sterile Tryptic Soy Agar plates. Incubate at optimal temperature for each organism. After 48 hours, count the colony forming units (CFU) on each plate, at each dilution and record. The number of microorganisms in the original inoculum equals the averaged number of colony forming units (cfus) from the duplicate plates times the dilution of the sample.        
 
         [0109]     Once the number of bacteria/ml for each microorganism being tested has been determined: 
        Prepare a test tube for each tested microorganism with 9.9 mls. of the moistening fluid.     Inoculate 0.1 mls. of the microorganism to be tested into the 9.9 mls. of moistening fluid and mix well.     Immediately draw one ml. (1 ml.) of the freshly inoculated moistening fluid and plate onto a sterile Tryptic Soy Agar plate. Continue by plating the duplicate plate. Swirl plate to ensure the even distribution of the fluid. Mark the duplicate plates with the organism&#39;s identification and designate as Time 0.        
 
         [0113]     Allow the vials with the moistening fluid/microorganism inoculum to remain undisturbed in a biological safety cabinet for 24 hours. 
        At the 24 hour mark, mix each vial well and draw, one (1) ml. of the moistening fluid/microorganism inoculum and plate onto a sterile Tryptic Soy Agar plate. Plate duplicate plate. Label as Time 24     Repeat the procedure at the 48 hour and 72 hour period of contact, and label as Time 48 and Time 72, respectively.     Incubate all of the plates at 27° C. for seven days.     Read the countable plates (those plates with cfus between 30-300)     Record the number of cfus/ml for each plate.     Determine the log reduction achieved within 24 hours of contact time, 48 hours of contact time and 72 hours and 7 days of contact time, for each microorganism tested.        
 
         [0120]     Log Reduction Explanation:  
         [0121]     “Log” stands for logarithm, which is the exponent of 10. For example, log 2  or 10×10 or 100 for a 10-fold or one decimal or 90% reduction in numbers of recoverable bacteria in a test food vehicle. And 1 log reduction would reduce the number of bacteria 90%. The 5 log refers to 10 to the 5 th  power or reduction in the number of microorganisms by 100,000-fold. For example, a product containing 100,000 pertinent microorganisms, a 5-log reduction would reduce the number or pertinent micro-organisms by 99.999%.  
         [0122]     Two Practical ways of Looking at 5-Log Reduction:  
         [0123]     Reduction of 100,000 bad microorganisms in one contaminated serving to 1 bad microorganism in a serving.  
         [0124]     Reduction of 100,000 contaminated servings to 1 contaminated serving.  
                                                           Log Reduction Chart                    % Reduction of           Log Reduction   Bacteria                            1   90           2   99           3   99.9           4   99.99           5   99.999                      
 
         [0125]     The surface tension of a liquid is the attractive force exerted by the molecules below the surface upon those at the surface/air interface. An internal pressure is thus created, which tends to restrain the liquid from flowing. Water is typically around 73 dynes/cm at 20° C.  
         [0126]     The viscosity is the internal resistance to flow exhibited by a fluid, the ratio of shearing stress to rate of shear. The unit of viscosity is poise which equals 100 centipoise.  
         [0127]     The fragrance test consists of subjectively determining the pleasantness of the odor of the moistening fluid by a panel of individuals.  
         [0128]     The following examples are exemplary of the invention and should not be considered as limiting.  
       EXAMPLE 1 
     Composition  
       [0129]    
       
         
               
               
             
           
               
                   
               
               
                   
               
             
             
               
                 Detergent (Alkylether hydroxypropyl sultaine) 
                 8.050 wt % 
               
               
                 Biocide Alkyl (C 14  50%; C 16  10%, C 12  40%) 
                 0.023 wt % 
               
               
                 Dimethyl Benzyl Ammonium Chloride 
               
               
                 Alcohol 2-Propanol 
                 4.950 wt % 
               
               
                 Dye FD &amp;C Blue#1 
                 0.000015 wt %   
               
               
                 Fragrance Citrus 
                 0.070 wt % 
               
               
                 De-ionized Water 
                 86.906985 wt %   
               
               
                   
               
             
          
         
       
     
       Properties of Example 1  
       [0130]     The pH of the moistening fluid is 5.76.  
         [0131]     The conductivity of the moistening fluid is 3.72 millimhos.  
         [0132]     The surface tension of the moistening fluid is 26.8 dynes/cm.  
         [0133]     Zone of inhibition 4.75 mm with a 16 mm saturated disc at 24 hours.  
         [0134]     Zone of inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
         [0135]     Zone of inhibition 5.0 mm with a 16 mm saturated disc at 72 hours.  
         [0136]     Gross Weight Gain—Sealing Test 1.310 g.  
         [0137]     Had an acceptable clean odor.  
                                             Wicking Test Times:                                    Measurement No. 1:   0.75 seconds           Measurement No. 2:   1.00 seconds           Measurement No. 3:   0.95 seconds           Average Measurement:   0.90 seconds                         Viscosity: 1.43 cps.                Specific gravity: 1.0042             
 
         [0138]     Challenge Test  
         [0139]     Log Reductions  
                                                                             Organism   Zero Time   24 Hours   48 Hours   72 Hours   7 Days                                  Caulobacter     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Acinetobacter     &gt;3.8   &gt;3.8   &gt;3.8   &gt;3.8   &gt;4.8         Penicillium     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5         Cladosporium     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Geotrichum     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5       Algae   —   &gt;4.3   &gt;4.3   &gt;4.3   &gt;4.3         E coli     &gt;3.1   &gt;3.1   &gt;3.1   &gt;3.1   &gt;4.1         Pseudomonas     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.4         Candida     3.2   &gt;3.2   &gt;3.2   &gt;3.2   &gt;4.2         Aspergillus     0.78   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         Sacchromyces     3   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         cereviseae                    
 
       Performance of Example 1  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The challenge test results indicated acceptable immediate and sustained microbial log reduction of target organisms.  
              5. The viscosity, surface tension and pH were within a acceptable range.  
           
         
       
     
       EXAMPLE 2  
       [0145]     Composition  
                                       Detergent (Alkylether hydroxypropyl sultaine)   8.050 wt %       Biocide Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023 wt %       Dimethyl Benzyl Ammonium Chloride       Alcohol 2-Propanol   4.950 wt %       Dye FD &amp; C Blue #1   0.000015 wt %         Fragrance French Vanilla   0.070 wt %       De-ionized Water   86.906985 wt %                    
 
       Properties of Example 2  
       [0146]     The pH of the moistening fluid is 5.77.  
         [0147]     The conductivity of the moistening fluid is 3.67 mmhos  
         [0148]     The surface tension of the moistening fluid is 28.8 dynes/cm.  
         [0149]     Zone of Inhibition 3.0 mm with a 16 mm saturated disc at 24 hours.  
         [0150]     Zone of Inhibition 3.0 mm with a 16 mm saturated disc at 48 hours.  
         [0151]     Zone of Inhibition 3.0 mm with a 16 mm saturated disc at 72 hours.  
         [0152]     Gross Weight Gain—Sealing Test=0.890 g.  
         [0153]     Had an acceptable flowery odor.  
                                             Wicking Test Times                                    Measurement No. 1:   1.79 seconds           Measurement No. 2:   1.50 seconds           Measurement No. 3:   1.03 seconds           Average Measurement:   1.44 seconds                         Viscosity: 1.32 cps.                Specific gravity: 1.0042             
 
       Performance of Example 2  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              1. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              2. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 3  
       [0158]     Composition  
                                       Detergent (Alkylether hydroxypropyl sultaine)   8.050 wt %       Biocide Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023 wt %       Dimethyl Benzyl Ammonium Chloride       Alcohol 2-Propanol   4.950 wt %       Dye FD &amp; C Blue #1   0.000015 wt %         Fragrance Pine Tree   0.070 wt %       De-ionized Water   86.906985 wt %                    
 
       Properties of Example 3  
       [0159]     The pH of the moistening fluid is 4.59.  
         [0160]     The conductivity of the moistening fluid is 3.68 mmhos  
         [0161]     The surface tension of the moistening fluid is 30.3 dynes/cm.  
         [0162]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 24 hours.  
         [0163]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
         [0164]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 72 hours.  
         [0165]     Gross Weight Gain—Sealing Test=0.915 g.  
         [0166]     Had an acceptable natural odor.  
                                             Wicking Test Time - 2.96 secs.                                    Measurement No. 1:   1.10 seconds           Measurement No. 2:   0.74 seconds           Measurement No. 3:   0.60 seconds           Average Measurement:   0.81 seconds                         Viscosity: 1.32 cps.                Specific gravity: 1.0043             
 
       Challenge Test  
       [0167]     Log Reductions  
                                                                             Organism   Zero Time   24 Hours   48 Hours   72 Hours   7 Days                                  Caulobacter     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Acinetobacter     &gt;3.8   &gt;3.8   &gt;3.8   &gt;3.8   &gt;4.8         Penicillium     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5         Cladosporium     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Geotrichum     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5       Algae   —   &gt;4.3   &gt;4.3   &gt;4.3   &gt;4.3         E coli     &gt;3.1   &gt;3.1   &gt;3.1   &gt;3.1   &gt;4.1         Pseudomonas     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.4         Candida     2.5   &gt;3.2   &gt;3.2   &gt;3.2   &gt;4.2         Aspergillus     0.96   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         Sacchromyces     &gt;3   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         cereviseae                    
 
       Performance of Example 3  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
              5. The challenge test results indicated acceptable immediate and sustained microbial log reduction of target organisms.  
           
         
       
     
       EXAMPLE 4  
       [0173]     Composition  
                                       Detergent (Alkylether hydroxypropyl sultaine)   8.050 wt %       Biocide Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023 wt %       Dimethyl Benzyl Ammonium Chloride       Alcohol 2-Propanol   4.95 wt %       Dye FD &amp; C Blue #1   0.000015 wt %         Fragrance Citrus   0.035 wt %       De-ionized Water   86.941985 wt %                    
 
       Properties of Example 4  
       [0174]     The pH of the moistening fluid is 6.35.  
         [0175]     The conductivity of the moistening fluid is 3.7 mmhos  
         [0176]     The surface tension of the moistening fluid is 27.5 dynes/cm.  
         [0177]     Zone of inhibition 5.0 mm with a16 mm saturated disc at 24 hours.  
         [0178]     Zone of inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
         [0179]     Zone of inhibition 5.0 mm with a16 mm saturated disc at 72 hours.  
         [0180]     Gross Weight Gain—Sealing Test 0.915 g.  
         [0181]     Had an acceptable clean odor.  
                                             Wicking Test Times                                    Measurement No. 1:   1.20 seconds           Measurement No. 2:   1.60 seconds           Measurement No. 3:   1.59 seconds           Average Measurement:   1.46 seconds                         Viscosity: 1.39 cps.                Specific gravity: 1.0042             
 
       Performance of Example 4  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 5  
       [0186]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.05   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2-Propanol   4.95   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   French Vanilla   0.035   wt %       De-ionized   Water   86.941985   wt %                  
 
       Properties of Example 5  
       [0187]     The pH of the moistening fluid is 6.32.  
         [0188]     The conductivity of the moistening fluid is 3.67 mmhos.  
         [0189]     The surface tension of the moistening fluid is 29 dynes/cm.  
         [0190]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 24 hours.  
         [0191]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 48 hours.  
         [0192]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 72 hours.  
         [0193]     Gross Weight Gain—Sealing Test=0.850 g.  
         [0194]     Had an acceptable flowery odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.91 seconds           Measurement No. 2:   1.20 seconds           Measurement No. 3:   0.90 seconds           Average Measurement:   1.00 seconds                         Viscosity: 1.39 cps.                Specific gravity: 1.0041             
 
       Performance of Example 5  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 6  
       [0199]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2 Propanol   4.95   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   Pine Tree   0.035   wt %       De-ionized   Water   86.941985   wt %                  
 
       Properties of Example 6  
       [0000]    
       
         
           
              The pH of the moistening fluid is 5.05.  
              The conductivity of the moistening fluid is 3.67 mmhos.  
              The surface tension of the moistening fluid is 29.3 dynes/cm.  
              Zone of inhibition 0.0 mm with a 45 mm saturated disc at 24 hours.  
              Zone of inhibition 0.0 mm with a 45 mm saturated disc at 48 hours.  
           
         
       
     
         [0205]     Zone of inhibition 0.0 mm with a 45 mm saturated disc at 72 hours.  
         [0206]     Gross Weight Gain—Sealing Test 1.345 g.  
         [0207]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.35 seconds           Measurement No. 2:   0.65 seconds           Measurement No. 3:   0.95 seconds           Average Measurement:   0.65 seconds                         Viscosity: 1.33 cps.                Specific gravity: 1.0042             
 
       Performance of Example 6  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an unacceptable level with no zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3 The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within a acceptable range.  
           
         
       
     
       EXAMPLE 7  
       [0212]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2 Propanol   4.95   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   Pine Tree   0.018   wt %       De-ionized   Water   86.958985   wt %                  
 
       Properties of Example 7  
       [0000]    
       
         
           
              The pH of the moistening fluid is 6.56.  
              The conductivity of the moistening fluid is 3.7 mmhos  
              The surface tension of the moistening fluid is 28.3 dynes/cm.  
              Zone of inhibition 0.00 mm with a 45 mm saturated disc at 24 hours.  
           
         
       
     
         [0217]     Zone of inhibition 0.00 mm with a 45 mm saturated disc at 48 hours.  
         [0218]     one of inhibition 0.00 mm with a 45 mm saturated disc at 72 hours.  
         [0219]     Gross Weight Gain—Sealing Test 0.380 g.  
         [0220]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.70 seconds           Measurement No. 2:   0.75 seconds           Measurement No. 3:   0.80 seconds           Average Measurement:   0.75 seconds                         Viscosity: 1.33 cps.                Specific gravity: 1.0043             
 
         [0221]     Viscosity: 1.33 cps.  
         [0222]     Specific gravity: 1.0043  
       Performance of Example 7  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an unacceptable level with no zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3 The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within a acceptable range.  
           
         
       
     
       EXAMPLE 8  
       [0227]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2 Propanol   4.95   wt %       Dye   FD &amp; C Blue #1   0.000   wt %       Fragrance   French Vanilla   0.018   wt %       De-   Water   86.95898507   wt %       ionized                  
 
       Properties of Example 8  
       [0228]     The pH of the moistening fluid is 6.23.  
         [0229]     The conductivity of the moistening fluid is 3.62 mmhos  
         [0230]     The surface tension of the moistening fluid is 28.1 dynes/cm.  
         [0231]     Zone of Inhibition 0.00 mm with a 45 mm saturated disc at 24 hours.  
         [0232]     Zone of Inhibition 0.00 mm with a 45 mm saturated disc at 48 hours.  
         [0233]     Zone of Inhibition 0.00 mm with a 45 mm saturated disc at 72 hours.  
         [0234]     Gross Weight Gain—Sealing Test 0.880 g.  
         [0235]     Had an acceptable flowery odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.84 seconds           Measurement No. 2:   0.85 seconds           Measurement No. 3:   0.98 seconds           Average Measurement:   0.89 seconds                         Viscosity: 1.38 cps.                Specific gravity: 1.0042             
 
         [0236]     Viscosity: 1.38 cps.  
         [0237]     Specific gravity: 1.0042  
       Performance of Example 8  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an unacceptable level with no zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors  
              3 The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within a acceptable range.  
           
         
       
     
       EXAMPLE 9  
       [0242]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2 Propanol   4.95       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   Pine Tree   0.018   wt %       De-ionized   Water   86.959   wt %                  
 
       Properties of Example 9  
       [0243]     The pH of the moistening fluid is 6.2.  
         [0244]     The conductivity of the moistening fluid is 5.5 mmhos  
         [0245]     The surface tension of the moistening fluid is 32.9 dynes/cm.  
         [0246]     Zone of Inhibition 6.0 mm with a 45 mm saturated disc at 24 hours  
         [0247]     Zone of Inhibition 6.0 mm with a 45 mm saturated disc at 48 hours  
         [0248]     Zone of Inhibition 6.0 mm with 45 mm saturated disc at 72 hours  
         [0249]     Gross Weight Gain—Sealing Test 0.785 g.  
         [0250]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   1.00 seconds           Measurement No. 2:   0.95 seconds           Measurement No. 3:   1.20 seconds           Average Measurement:   1.05 seconds                      
 
         [0251]     Viscosity: 1.29 cps.  
         [0252]     Specific gravity: 1.0041  
       Performance of Example 9  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 10  
       [0257]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   14.950   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2-Propanol   4.950   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   Pine Tree   .07   wt %       De-ionized   Water   80.00699   wt %                  
 
       Properties of Example 10  
       [0258]     The pH of the moistening fluid is 4.53.  
         [0259]     The conductivity of the moistening fluid is 7.05 mmhos  
         [0260]     The surface tension of the moistening fluid is 27.1 dynes/cm.  
         [0261]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 24 hours.  
         [0262]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
         [0263]     Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 72 hours.  
         [0264]     Gross Weight Gain—Sealing Test=0.915 g  
         [0265]     Had an acceptable natural odor.  
                                             Wicking Test Time - 2.96 secs.                                    Measurement No. 1:   1.10 seconds           Measurement No. 2:   0.74 seconds           Measurement No. 3:   0.60 seconds           Average Measurement:   0.81 seconds                      
 
         [0266]     Viscosity—1.8 cps.  
       Challenge Test  
       [0267]     Log Reductions  
                                                                             Organism   Zero Time   24 Hours   48 Hours   72 Hours   7 Days                                  Caulobacter     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Acinetobacter     &gt;3.8   &gt;3.8   &gt;3.8   &gt;3.8   &gt;4.8         Penicillium     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5         Cladosporium     &gt;3.7   &gt;3.7   &gt;3.7   &gt;3.7   &gt;4.7         Geotrichum     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.5       Algae   —   &gt;4.3   &gt;4.3   &gt;4.3   &gt;4.3         E coli     &gt;3.1   &gt;3.1   &gt;3.1   &gt;3.1   &gt;4.1         Pseudomonas     &gt;3.5   &gt;3.5   &gt;3.5   &gt;3.5   &gt;4.4         Candida     2.5   &gt;3.2   &gt;3.2   &gt;3.2   &gt;4.2         Aspergillus     0.96   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         Sacchromyces     &gt;3   &gt;3.0   &gt;3.0   &gt;3.0   &gt;4.0         cereviseae                    
 
       Performance of Example 10  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4 The viscosity, surface tension and pH were within an acceptable range.  
              5 The challenge test results indicated acceptable immediate and sustained microbial log reduction of target organisms.  
           
         
       
     
       EXAMPLE 11  
       [0273]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   14.950   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   2-Propanol   6.23   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   French Vanilla   .07   wt %       De-ionized   Water   78.72699   wt %                  
 
       Properties of Example 11  
       [0274]     The pH of the moistening fluid is 4.56.  
         [0275]     The conductivity of the moistening fluid is 6.63 mmhos.  
         [0276]     The surface tension of the moistening fluid is 28.4 dynes/cm.  
         [0277]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 24 hours.  
         [0278]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 48 hours.  
         [0279]     Zone of inhibition 6.0 mm with a 16 mm saturated disc at 72 hours.  
         [0280]     Gross Weight Gain—Sealing Test=0.850 g.  
         [0281]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.91 seconds           Measurement No. 2:   1.20 seconds           Measurement No. 3:   0.90 seconds           Average Measurement:   1.00 seconds                      
 
         [0282]     Viscosity—1.9 cps.  
       Performance of Example 11  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 12  
       [0287]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   14.950   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.054   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   Ethanol denatured   6.230   wt %       Dye       0.000   wt %       Fragrance   Pine Tree   .07   wt %       De-ionized   Water   78.78696   wt %                  
 
       Properties of Example 12  
       [0000]    
       
         
           
              The pH of the moistening fluid is 4.59.  
              The conductivity of the moistening fluid is 6.81 mmhos  
              The surface tension of the moistening fluid is 28.8 dynes/cm.  
              Zone of Inhibition 6.0 mm with a 45 mm saturated disc at 24 hours  
              Zone of Inhibition 6.0 mm with a 45 mm saturated disc at 48 hours  
              Zone of Inhibition 6.0 mm with 45 mm saturated disc at 72 hours  
              Gross Weight Gain—Sealing Test 0.785 g.  
           
         
       
     
         [0295]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   1.00 seconds           Measurement No. 2:   0.95 seconds           Measurement No. 3:   1.20 seconds           Average Measurement:   1.05 seconds                      
 
         [0296]     Viscosity—2.1 cps.  
       Performance of Example 12  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 13  
       [0301]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   11.500   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.074   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   Ethanol denatured   6.230   wt %       Dye       0.000   wt %       Fragrance   Citrus   .07%   wt %       De-ionized   Water   82.126   wt %                  
 
       Properties of Example 13  
       [0000]    
       
         
           
              The pH of the moistening fluid is 5.04.  
              The conductivity of the moistening fluid is 5.61 mmhos  
              The surface tension of the moistening fluid is 27.8 dynes/cm.  
              Zone of Inhibition 6.0 mm with a 16 mm saturated disc at 24 hours.  
              Zone of Inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
              Zone of Inhibition 4.0 mm with a 16 mm saturated disc at 72 hours.  
              Gross Weight Gain—Sealing Test 1.255 g.  
           
         
       
     
         [0309]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   1.08 seconds           Measurement No. 2:   0.52 seconds           Measurement No. 3:   1.01 seconds           Average Measurement:   0.87 seconds                      
 
         [0310]     Viscosity—1.8 cps.  
       Performance of Example 13  
       [0000]    
       
         
           
              1A. The moistening fluid&#39;s biocidal capability was at an acceptable level with a zone of inhibition at 6.0 mm at the 24 hour reading.  
              1B. At the 48 and 72 hour readings there appeared to be a regrowth within the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 14  
       [0316]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   Alkyl (C 14  50%; C 16  10%, C 12  40%)   0.023   wt %           Dimethyl Benzyl Ammonium Chloride       Alcohol   1-propanol   4.950   wt %       Dye   FD &amp; C Blue #1   0.000015   wt %       Fragrance   FrenchVanilla   .07%   wt %       De-ionized   Water   86.90699   wt %                  
 
       Properties of Example 14  
       [0000]    
       
         
           
              The pH of the moistening fluid is 4.37  
              The conductivity of the moistening fluid is 4. 39 mmhos  
              The surface tension of the moistening fluid is 29 dynes/cm.  
              Zone of Inhibition 7.0 mm with a 16 mm saturated disc at 24 hours.  
              Zone of Inhibition 9.0 mm with a 16 mm saturated disc at 48 hours.  
              Zone of Inhibition 9.0 mm with a 16 mm saturated disc at 72 hours.  
              Gross Weight Gain—Sealing Test 0.700 g.  
           
         
       
     
         [0324]     Had an acceptable natural odor.  
                                             Wicking Test Times                                    Measurement No. 1:   0.82 seconds           Measurement No. 2:   0.90 seconds           Measurement No. 3:   0.81 seconds           Average Measurement:   0.84 seconds                      
 
         [0325]     Viscosity—1.8 cps.  
       Performance of Example 14  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the Zone of Inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3 The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within an acceptable range.  
           
         
       
     
       EXAMPLE 15  
       [0330]     Composition  
                                               Detergent   (Alkylether hydroxypropyl sultaine)   8.050   wt %       Biocide   1,2-Benzisothazolin-3-one(Proxel GXL)   0.057   wt %       Alcohol   2-Propanol   4.950   wt %       Dye   FD &amp; C Blue #1   0.00015   wt %       Fragrance   Citrus   .07   wt %       De-ionized   Water   86.87285   wt %                  
 
       Properties of Example 15  
       [0331]     The pH of the moistening fluid is 8.32.  
         [0332]     The conductivity of the moistening fluid is 3.84 millimhos.  
         [0333]     The surface tension of the moistening fluid is 31 dynes/cm.  
         [0334]     Zone of inhibition 4.75 mm with a 16 mm saturated disc at 24 hours.  
         [0335]     Zone of inhibition 5.0 mm with a 16 mm saturated disc at 48 hours.  
         [0336]     Zone of inhibition 5.0 mm with a 16 mm saturated disc at 72 hours.  
         [0337]     Gross Weight Gain—Sealing Test 1.310 g.  
         [0338]     Had an acceptable natural odor.  
                                             Wicking Test Times:                                    Measurement No. 1:   0.75 seconds           Measurement No. 2:   1.00 seconds           Measurement No. 3:   0.95 seconds           Average Measurement:   0.90 seconds                      
 
         [0339]     Viscosity—1.8 cps.  
       Performance of Example 15  
       [0000]    
       
         
           
              1. The moistening fluid&#39;s biocidal capability was at an acceptable level with no regrowth visible in the zone of inhibition.  
              2. The moistening fluid&#39;s conductivity was sufficiently high to be acceptable for use in mailing systems with ion detecting moistening fluids sensors.  
              3. The results of the sealing test were satisfactory, in that all the envelopes sealed.  
              4. The viscosity, surface tension and pH were within a acceptable range.  
           
         
       
     
         [0344]     The above embodiments have been given by way of illustration only, and other embodiments of the instant invention will be apparent to those skilled in the art, from consideration of the detailed description. Accordingly, any limitation on the instant invention is to be found only in the claims.