Patent Publication Number: US-2006000546-A1

Title: Method for adhering waterproof tape

Description:
FIELD OF THE INVENTION  
      The present invention relates to methods for adhering waterproof tapes, and more particularly, to a method for adhering waterproof tape for general textiles and special protective clothing.  
     BACKGROUND OF THE INVENTION  
      For the textile industry, technology for seaming or adhering seams of fabrics is always important to quality, and is also critical for enhancing the competitiveness of fabric products and expanding the use thereof. For example, it has become an important issue of textile development to ensure seaming or adhering strength of seams of clothing, such that gaps or an infiltration problem of fabrics can be avoided so as to achieve market requirements of waterproofing, wind-proofing, dust-proofing, warm-keeping, and preventing small particles and liquid materials such as blood or viruses from infiltrating the fabrics.  
      Conventionally, in order to achieve the above requirements for fabric products, a layer of polymer coating is firstly applied on fabrics to provide a required blocking effect, and then a waterproof tape is attached to seams between the fabrics respectively, such that the waterproof tapes cover edges of the fabrics closely and are adhered to the coating applied on the fabrics, and thus pinholes produced by sewing the fabrics are well covered. Thereby, blocking and infiltration-proofing effects can be provided by the waterproof tapes on the seams. For example, in the cover-all protective clothing with a head cover as shown in  FIG. 5 , sleeve seams  41 , sleeve side seams  42 , trouser side seams  43 , a neck seam  44 , and other connecting positions of fabrics (not shown) are all well covered by waterproof tapes, such that gaps or infiltration at the seaming positions can be avoided to eliminate difficulty in achieving the requirements of waterproofing, wind-proofing, dust-proofing, warn-keeping, and preventing small particles and liquid materials from infiltrating the fabrics, etc.  
      However, for the structure described above, problems may usually occur during the manufacturing processes thereof. If the adhering process of waterproof tapes is not performed properly, or the design of the adhering process is not appropriate, not only the desired blocking effect of waterproof tapes may not be obtained, but also peeling-off of waterproof tapes or damage to the fabrics can be caused. As shown in  FIG. 6A  of a conventional heating blower  50  (or referred to as a hot air seam sealing machine) for adhering waterproof tapes, the heating blower  50  is provided with two rollers  30 . As shown in  FIG. 6B , a fabric  10  applied with a coating is placed between the two rollers  30 , and then a waterproof tape  20  to be adhered to the coating is pressed onto the coating by the upper roller  30 . In this step, adherence of the waterproof tape  20  to the coating is achieved by the temperature and pressure of hot air generated from a hot air nozzle  35  shown in the drawing and by control of the rolling pressure and rotation speed of the rollers  30 . Such adhering process is very complicated. The adhering effect of waterproof tape may be influenced by a material of the waterproof tape, coating or fabric, a setting position of the nozzle, and operation by an operator. Particularly, the temperature and pressure of the hot air from the heating blower and the rolling pressure and rotation speed of the rollers are important parameters that influence the processing quality and directly affect the quality and yield of a final product in terms of waterproofing, wind-proofing, dust-proofing, warm-keeping and particle-proofing effects.  
      For a common fabric product, if the foregoing parameters are not adjusted appropriately (too high or too low in value), a problem of peeling-off or infirm adherence of the waterproof tape after washing is easy to occur especially at positions with overlapped seams or cambered bulges. Further if the parameters are not adjusted appropriately, not only failure in adherence may occur, but also melt of the fabric or coating may be caused, resulting in a waste of material.  
      Moreover, adjustment of the parameters also influences an infiltration-blocking characteristic of a waterproof tape after being adhered. Particularly, for a fabric product with a special protection requirement, such as protective clothing for medical use, the processing quality of adhering the waterproof tape would tremendously affect blocking and protective effects of the waterproof tape. For such product, even if a waterproof tape has been securely adhered to a coating, when parameters of the heating blower are not ideally adjusted during processing, infiltration may still occur at a seam covered by the waterproof tape, such that a desired medical effect of preventing blood, bacteria or viruses from infiltration cannot be achieved. Especially in the case of high class medical protective clothing such as that for SARS-proofing, the foregoing quality problem of waterproof tape may very possibly lead to a serious consequence to threaten personal safety of medical personnel.  
      Therefore, the problem to be solved here is to develop a method for adhering waterproof tape, such that parameters of a heating blower can be optimally adjusted to achieve the best quality of adherence and protection of the waterproof tape.  
     SUMMARY OF THE INVENTION  
      In view of the forgoing drawbacks in the prior art, an objective of the present invention is to provide a method for adhering waterproof tape to enhance an adhesion force thereof.  
      Another objective of the present invention is to provide a method for adhering waterproof tape, which can block small particles and liquid materials.  
      Still another objective of the present invention is to provide a method for adhering waterproof tape, which can improve strength of a product.  
      A further objective of the present invention is to provide a method for adhering waterproof tape, which can improve water pressure resistance of a product.  
      In accordance with the above and other objectives, the present invention proposes a method for adhering waterproof tape for enhancing an adhesion force thereof, comprising the steps of: preparing a fabric and a coating that are processed to form a predetermined connecting structure; preparing a waterproof tape that is to be adhered to the connecting structure; setting operation parameters of a heating blower, such that an operation temperature thereof is between 120 to 700° C., an operation air pressure thereof is between 0.3 to 2 kg/cm 2 , an operation rolling pressure thereof is between 1.5 to 4.5 kg/cm 2 , and an operation rotation speed is between 100 to 400 R.P.M.; and adhering the waterproof tape to the connecting structure by the heating blower operating with the set operation temperature, operation air pressure, operation rolling pressure and operation rotation speed thereof, so as to improve an adhesion force of the waterproof tape.  
      Further, according to a material making a waterproof tape, the method for adhering waterproof tape for enhancing an adhesion force thereof proposed in the present invention comprises the steps of: preparing a fabric and a coating that are processed to form a predetermined connecting structure; preparing a waterproof tape made of any one of nylon, PVC (polyvinyl chloride), PU (polyurethane) and PE (polyethylene); setting operation parameters of a heating blower, such that an operation temperature, an operation air pressure, an operation rolling pressure and an operation rotation speed of the heating blower are between 350 to 600° C., 0.3 to 2 kg/cm 2 , 3 to 4 kg/cm 2 , and 100 to 300 R.P.M. respectively if the waterproof tape is made of nylon; the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 450 to 600° C., 0.3 to 2 kg/cm 2 , 2 to 2.5 kg/cm 2 , and 150 to 300 R.P.M. respectively if the waterproof tape is made of PVC; the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 350 to 600° C., 0.3 to 2 kg/cm 2 , 2 to 2.5 kg/cm 2 , and 150 to 300 R.P.M. respectively if the waterproof tape is made of PU; or the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 120 to 400° C., 0.3 to 2 kg/cm 2 , 2 to 4 kg/cm 2 , and 100 to 300 R.P.M. respectively if the waterproof tape is made of PE; and adhering the waterproof tape to the connecting structure by the heating blower operating with the set operation temperature, operation air pressure, operation rolling pressure and operation rotation speed thereof so as to improve an adhesion force of the waterproof tape.  
      Moreover, the present invention provides a method for adhering waterproof tape for blocking small particles and liquid materials, comprising the steps of: preparing a fabric and a coating that are processed to form a predetermined connecting structure; preparing a waterproof tape that is to be adhered to the connecting structure; setting operation parameters of a heating blower, such that an operation temperature thereof is between 200 to 600° C., an operation air pressure thereof is between 0.5 to 0.9 kg/cm 2 , an operation rolling pressure thereof is between 2 to 4.5 kg/cm 2 , and an operation rotation speed thereof is between 100 to 350 R.P.M.; and adhering the waterproof tape to the connecting structure by the heating blower operating with the set operation temperature, operation air pressure, operation rolling pressure and operation rotation speed thereof so as to improve a blocking effect of the waterproof tape against small particles and liquid materials.  
      Further, according to a material making a waterproof tape, the method for adhering waterproof tape proposed in the present invention for blocking small particles and liquid materials, comprises the steps of: preparing a fabric and a coating that are processed to form a predetermined connecting structure; preparing a waterproof tape made of any one of nylon, PVC, PU and PE; setting operation parameters of a heating blower, such that an operation temperature, an operation air pressure, an operation rolling pressure and an operation rotation speed of the heating blower are between 460 to 510° C., 0.5 to 0.9 kg/cm 2 , 3 to 4 kg/cm 2 , and 200 to 250 R.P.M. respectively if the waterproof tape is made of nylon; the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 500 to 550° C., 0.5 to 0.9 kg/cm 2 , 1.5 to 2.5 kg/cm 2 , and 200 to 300 R.P.M. respectively if the waterproof tape is made of PVC; the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 500 to 540° C., 0.5 to 0.9 kg/cm 2 , 2 to 2.2 kg/cm 2 , and 200 to 300 R.P.M. respectively if the waterproof tape is made of PU; or the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are between 250 to 400° C., 0.5 to 0.9 kg/cm 2 , 3 to 4 kg/cm 2 , and 250 to 300 R.P.M. respectively if the waterproof tape is made of PE; and adhering the waterproof tape to the connecting structure by the heating blower operating with the set operation temperature, operation air pressure, operation rolling pressure and operation rotation speed thereof so as to improve a blocking effect of the waterproof tape against small particles and liquid materials.  
      Moreover, apart from selecting the operation parameters of the heating blower according to the material making the waterproof tape, the operation parameters of the heating blower can be adjusted depending on a thickness and melting point of the waterproof tape according to the method for adhering waterproof tape proposed in the present invention. In such case, the method comprises the steps of: preparing a fabric and a coating that are processed to form a predetermined connecting structure; preparing a waterproof tape that is to be adhered to the connecting structure; setting operation parameters of a heating blower to determine whether an operation rolling pressure of the heating blower is set to be larger than a predetermined rolling pressure depending on whether a combined thickness of the waterproof tape and the connecting structure is larger than a predetermined thickness, and to determine whether an operation temperature, an operation air pressure and an operation rotation speed of the heating blower are set to be respectively larger than a predetermined temperature, a predetermined air pressure and a predetermined rotation speed depending on whether a melting point of the waterproof tape is larger than a predetermined melting point; and adhering the waterproof tape to the connecting structure by the heating blower operating with the set operation temperature, operation air pressure, operation rolling pressure and operation rotation speed thereof.  
      Therefore, by the foregoing method for adhering waterproof tape according to the present invention, an adhering process of a waterproof tape can be performed with the most appropriate parameters of a heating blower based on a material, thickness and melting point of the waterproof tape, such that the adhering quality of the waterproof tape can be improved and an effect for effectively blocking small particles and liquid materials can be achieved, thereby accomplishing various requirements for textiles, such as waterproofing, wind-proofing, dust-proofing, warm-keeping, and infiltration-proofing for medical use, etc. in the market. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The present invention can be more fully understood by reading the following detailed description of the preferred embodiments, with reference made to the accompanying drawings, wherein:  
       FIG. 1  is an operation procedure flowchart showing a method for adhering waterproof tape according to the present invention;  
       FIGS. 2A  to  2 C are schematic diagrams of various types of structure after adhering a waterproof tape to a connecting structure;  
       FIG. 3A  is a schematic diagram showing parameter adjustment for improving an adhesion force of a waterproof tape according to the present invention;  
       FIG. 3B  is a detailed flowchart showing parameter adjustment for improving the adhesion force of the waterproof tape made of various materials according to the present invention;  
       FIG. 4A  is a schematic diagram showing parameter adjustment for blocking small particles and liquid materials according to the present invention;  
       FIG. 4B  is a detailed flowchart showing parameter adjustment for blocking small particles and liquid materials by a waterproof tape made of various materials according to the present invention;  
       FIG. 5  (PRIOR ART) is a schematic diagram showing positions of conventional clothing adhered with waterproof tapes; and  
       FIGS. 6A and 6B  (PRIOR ART) are schematic diagrams showing conventional heating blower for adhering a waterproof tape. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
      A method for adhering waterproof tape proposed in the present invention is used to improve an adhesion force of the waterproof tape, and thereby enhance a blocking effect of the waterproof tape against small particles and liquid materials such as blood and viruses, so as to solve problems in a conventional adhering process. Preferred embodiments of the present invention are described as follows.  
      Improving Adhesion Force of Waterproof Tape  
       FIG. 1  is a flowchart showing steps of the method for adhering waterproof tape according to the present invention. As shown in  FIG. 1 , firstly, in step S 10 , fabrics with a coating applied on a surface thereof respectively (alternatively, the coating can be applied and formed in the fabrics) are prepared. The fabric is made of a material selected according to the purpose of a final product, and the coating for enhancing a blocking effect of the fabric can be made of a polymer material such as nylon, PU, PVC, PE, or TPU (thermoplastic polyurethane), etc. Then, in step S 20 , the fabrics are processed at seam positions to form a predetermined connecting structure. The connecting structure may be one of the examples shown in  FIGS. 2A  to  2 C. For example, when the coating (not shown) is applied on an inner surface of each of the fabrics  10 , the connecting structure may be formed as a lock-stitch structure shown in  FIG. 2A ; if the coating (not shown) is applied on an outer surface of each of the fabrics  10 , the connecting structure may be formed as an over-lock structure shown in  FIG. 2B  or an overcast structure shown in  FIG. 2C . The connecting structure may be designed to be other structures such as a melting seam structure (not shown) according to requirements of a user.  
      Next, in step S 25 , a waterproof tape  20  that is to be adhered to the connecting structure is prepared. The waterproof tape  20  can be made of a polymer material such as nylon, PU, PVC, or PE, etc. Generally, the waterproof tape  20  may be made of the same material as the coating. Then, in steps S 30  and S 35 , appropriate parameters of a heating blower are selected according to the material of the waterproof tape  20 . As shown in  FIG. 3A , to set the parameters of the heating blower for improving the adhesion force of the waterproof tape according to the present invention, in step S 40 , before operation of the heating blower, an operation temperature thereof is adjusted to be between 120 to 700° C., an operation air pressure thereof is adjusted to be between 0.3 to 2 kg/cm 2 , an operation rolling pressure thereof is adjusted to be between 1.5 to 4.5 kg/cm 2 , and an operation rotation speed thereof is adjusted to be between 100 to 400 R.P.M. Subsequently, in step S 45 , the heating blower operates with the above parameters to make the waterproof tape adhered to the connecting structure and cover the seam positions.  
      By the adhering process performed with the foregoing parameters, the waterproof tape can be securely adhered to the connecting structure without peeling off therefrom, thereby satisfying standards of seaming strength and hydrostatic pressure set up by CNS (Chinese National Standard). In other words, the seaming strength of every connecting structure adhered with the waterproof tape is greater than 40N, and the measured hydrostatic pressure thereof is higher than 140 cmH 2 O, as shown in  FIG. 3A , wherein the seaming strength refers to a force required for stretching and breaking the seam positions of the fabrics, and the hydrostatic pressure refers to a pressure required for making water penetrate the fabrics at a predetermined speed.  
      Moreover, after completely adhering the waterproof tape, the method for adhering waterproof tape according to the present invention further includes a determining step shown as step S 50  in  FIG. 1  to determine whether the adhering quality of the waterproof tape satisfies the standards, for example, determining whether the seaming strength or any other strength thereof is sufficient. If yes, then step S 60  is carried out to complete the adhering process. If no, then step S 55  is carried out to repair the waterproof tape and the connecting structure by a repairing machine so as to reinforce the adhesion strength of the waterproof tape by performing a pressing or heating process for a predetermined period of time and subsequently step S 60  is carried out after the requirement has been fulfilled, to complete the adhering process for the waterproof tape according to the present invention.  
      In the forgoing method, the required parameters of the heating blower are determined by steps S 30  and S 35 , and the adhering quality of the waterproof tape, which can not be assured by the conventional technology, can be achieved by operation being performed with the determined parameters. Moreover, the parameters of the heating blower can further be determined and adjusted corresponding to the material of the waterproof tape by steps S 30  and S 35 , as shown in  FIG. 3B . If the material of the waterproof tape is nylon (step S 31 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are adjusted to be between 350 to 600° C., 0.3 to 2 kg/cm 2 , 3 to 4 kg/cm 2 , and 100 to 300 R.P.M. respectively in step S 310 . If the material of the waterproof tape is PVC (step S 32 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are adjusted to be between 450 to 600° C., 0.3 to 2 kg/cm 2 , 2 to 2.5 kg/cm 2 , and 150 to 300 R.P.M. respectively in step S 320 . If the material of the waterproof tape is PU (step S 33 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are adjusted to be between 350 to 600° C., 0.3 to 2 kg/cm 2 , 2 to 2.5 kg/cm 2 , and 150 to 300 R.P.M. respectively in step S 330 . Finally, if the material of the waterproof tape is PE (step S 34 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower are adjusted to be between 120 to 400° C., 0.3 to 2 kg/cm 2 , 2 to 4 kg/cm 2 , and 100 to 300 R.P.M. respectively in step S 340 . With these parameters set for different materials of the waterproof tape, the required testing standards, i.e. the seaming strength being greater than 40N and the hydrostatic pressure being higher than 140 cmH 2 O, can be satisfied for all these materials, and the adhesion strength of the waterproof tape can be effectively improved.  
     EXAMPLE 1  
      The following table shows testing results of using nylon as the material of the waterproof tape. From this table, it indicates that all the adhering processes, which were performed within the foregoing ranges of parameters, passed in an adhesion test for the waterproof tape, wherein the standards for determining whether the waterproof tape is adhered securely are the same as those described above, i.e. whether the seaming strength is greater than 40N after adherence and the hydrostatic pressure is higher than 140 cmH 2 O.  
                           TABLE 1                                      Operation parameters of heating blower   Whether                                         Operation   Operation   Operation   operation   waterproof       Material of   temper-   air   rolling   rotation   tape is       waterproof   ature   pressure   pressure   speed   adhered       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)   securely?               nylon   600   0.8   4   300   YES       nylon   580   0.8   4   280   YES       nylon   550   0.8   4   250   YES       nylon   500   0.8   4   230   YES       nylon   480   0.8   4   220   YES       nylon   450   0.8   4   200   YES       nylon   400   0.8   3   150   YES       nylon   350   0.8   3   100   YES                  
 
     EXAMPLE 2  
      The following table shows testing results of using PE as the material of the waterproof tape. From this table, it indicates that all the adhering processes, which were performed within the foregoing ranges of parameters, passed in the adhesion test for the waterproof tape, wherein the standards for determining whether the waterproof tape is adhered securely are the same as those described above, i.e. whether the seaming strength is greater than 40N after adherence and the hydrostatic pressure is higher than 140 cmH 2 O.  
                           TABLE 2                                      Operation parameters of heating blower   Whether                                         Operation   Operation   Operation   Operation   waterproof       Material of   temper-   air   rolling   rotation   tape is       waterproof   ature   pressure   pressure   speed   adhered       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)   securely?                                             PE   350   0.6   3   300   YES       PE   300   0.6   3   250   YES       PE   260   0.6   3   200   YES       PE   230   0.6   3   180   YES       PE   200   0.6   2.8   150   YES       PE   150   0.6   2.5   130   YES       PE   130   0.6   2   100   YES       PE   120   0.6   2   90   YES                  
 
     EXAMPLE 3  
      The following table shows testing results of using PU as the material of the waterproof tape. From this table, it indicates that all the adhering processes, which were performed within the foregoing ranges of parameters, passed in the adhesion test for the waterproof tape, wherein the standards for determining whether the waterproof tape is adhered securely are the same as those described above, i.e. whether the seaming strength is greater than 40N after adherence and the hydrostatic pressure is higher than 140 cmH 2 O.  
                           TABLE 3                                      Operation parameters of heating blower   Whether                                         Operation   Operation   Operation   Operation   waterproof       Material of   temper-   air   rolling   rotation   tape is       waterproof   ature   pressure   pressure   speed   adhered       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)   securely?                                             PU   600   0.8   2.5   300   YES       PU   550   0.8   2.5   280   YES       PU   540   0.8   2.2   250   YES       PU   500   0.8   2   250   YES       PU   450   0.8   2   200   YES       PU   400   0.8   2   180   YES       PU   350   0.8   2   150   YES                  
 
     EXAMPLE 4  
      The following table shows testing results of using PVC as the material of the waterproof tape. From this table, it indicates that all the adhering processes, which were performed within the foregoing ranges of parameters, passed in the adhesion test for the waterproof tape, wherein the standards for determining whether the waterproof tape is adhered securely are the same as those described above, i.e. whether the seaming strength is greater than 40N after adherence and the hydrostatic pressure is higher than 140 cmH 2 O.  
                           TABLE 4                                      Operation parameters of heating blower   Whether                                         Operation   Operation   Operation   Operation   waterproof       Material of   temper-   air   rolling   rotation   tape is       waterproof   ature   pressure   pressure   speed   adhered       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)   securely?                                             PVC   600   0.8   2.5   300   YES       PVC   550   0.8   2   250   YES       PVC   500   0.8   2   230   YES       PVC   450   0.8   2   200   YES                  
 
 Blocking Small Particles and Liquid Materials 
 
      Additionally, for a blocking requirement of medical textiles, in the method for adhering waterproof tape according to the present invention as shown in the flowchart of  FIG. 1 , a smaller range for parameter adjustment is proposed in step S 35 , such that the waterproof tape can block small particles and liquid materials such as blood or viruses after being adhered to the connecting structure. As shown in  FIG. 4A , before operation of the heating blower, the operation temperature thereof is adjusted to be between 200 to 600° C., the operation air pressure thereof is adjusted to be between 0.5 to 0.9 kg/cm 2 , the operation rolling pressure thereof is adjusted to be between 2 to 4.5 kg/cm 2 , and the operation rotation speed thereof is adjusted to be between 100 to 350 R.P.M. Next, in step S 45 , the heating blower operates with the above parameters to make the waterproof tape adhered to the connecting structure and cover the seam positions.  
      Thereby, blood and viruses can be indeed prevented from infiltrating the fabrics by the waterproof tape adhered to the seam positions, and thus standards of penetrability for viruses set up by CNS can be satisfied to sufficiently block bacteriophage Phi-X174 having a diameter of 0.027 μm and prevent the small particles and liquid materials from entering the fabrics. Of course, viruses generally with a diameter about 0.08 μm, bacteria generally with a diameter between 0.25 to 1.5 μm, and corpuscles in blood with an even larger diameter can all be blocked by the waterproof tape, thereby achieving a medical protection effect for medical textiles, and satisfying requirements for medical protective clothing such as that for SARS-resistance.  
      In the foregoing method, the required parameters of the heating blower are determined by steps S 30  and S 35  in  FIG. 1 , and thus the effect of blocking small particles and liquid materials, which cannot be assured by the conventional technology, can be achieved by processing being performed with the determined parameters. Moreover, in steps S 30  and S 35 , the parameters of the heating blower can be further determined according to the material of the waterproof tape, as shown in the flowchart of  FIG. 4B . If the waterproof tape is made of nylon (step S 31 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower can be adjusted to be between 460 to 510° C., 0.5 to 0.9 kg/cm 2 , 3 to 4 kg/cm 2 , and 200 to 250 R.P.M. respectively in step S 310 . If the waterproof tape is made of PVC (step S 32 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower can be adjusted to be between 500 to 550° C., 0.5 to 0.9 kg/cm 2 , 1.5 to 2.5 kg/cm 2 , and 200 to 300 R.P.M. respectively in step S 320 . If the waterproof tape is made of PU (step S 33 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower can be adjusted to be between 500 to 540° C., 0.5 to 0.9 kg/cm 2 , 2 to 2.2 kg/cm 2 , and 200 to 300 R.P.M. respectively in step S 330 . Finally, if the waterproof tape is made of PE (step S 34 ), the operation temperature, operation air pressure, operation rolling pressure and operation rotation speed of the heating blower can be adjusted to be between 250 to 400° C., 0.5 to 0.9 kg/cm 2 , 3 to 4 kg/cm 2 , and 250 to 300 R.P.M. respectively in step S 340 . With these parameters set for different materials of the waterproof tape, the foregoing requirement can also be satisfied, i.e. blocking filtration of bacteriophage Phi-X174 with a diameter of 0.027 μm, and the blocking effect of the waterproof tape after adherence can be effectively improved.  
     EXAMPLE 5  
      The following table shows testing results of using PVC, PU, nylon and PE as the material of the waterproof tape respectively. From this table, it indicates that all the adhering processes, which were performed within the foregoing ranges of parameters, passed in the virus penetrability test for the waterproof tape, wherein the standard for determining whether the waterproof tape can indeed block virus particles is the same as that described above, i.e. whether bacteriophage Phi-X174 with a diameter of 0.027 μm can be blocked from infiltration.  
                           TABLE 5                                      Operation parameters of heating blower   Whether                                     Material   Operation   Operation   Operation   Operation   virus       of   temper-   air   rolling   rotation   particals are       waterproof   ature   pressure   pressure   speed   indeed       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)   blocked?                                             PVC   550   0.8   2   250   YES       PU   540   0.8   2.2   250   YES       PU   500   0.8   2   250   YES       nylon   510   0.8   3   250   YES       nylon   480   0.8   4   250   YES       nylon   460   0.8   3.8   200   YES       PE   300   0.8   3   250   YES       PE   250   0.8   4   250   YES                  
 
     EXAMPLE 6  
      The following table shows testing results of a CNS test performed with the foregoing parameters, wherein the testing object in this table is a structure adhered with a waterproof tape made of PE, with an operation temperature of 300° C., an operation air pressure of 0.6 kg/cm 2 , an operation rolling pressure of 3 kg/cm 2 , and an operation rotation speed of 250 R.P.M.  
      In the table, blood infiltration refers to a blocking capability test of textile against synthetic blood. Virus infiltration refers to a blocking capability test of textile against bacteriophage Phi-X174. Protection efficiency refers to a percentage of known suspended particles not able to pass through a textile under a certain flow rate. Longitudinal and transverse breaking strength refers to a force required for stretching and breaking the textile in different directions. Exploding strength refers to a force required for expanding and breaking the textile. Seaming strength refers to a force required for stretching and breaking a seam of the textile. Longitudinal and transverse tearing strength refers to a force required for tearing or continuously tearing the textile. Water permeability refers to the mass of steam passing through the textile within 24 hours. Hydrostatic pressure refers to a pressure required for making water penetrate the textile at a certain speed. Impact permeability refers to a quantity of water permeating the textile after swashing the textile with a certain quantity of water.  
                       TABLE 6                                      Operation parameters of heating blower                                         Operation               Material of   Operation   air   Operation   Operation       waterproof   temperature   pressure   rolling pressure   rotation speed       tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)               PE   300   0.6   3   250                                 Testing item   Testing result   Target value               blood infiltration   None   None       virus infiltration   None   None       protection efficiency   100%   95%       longitudinal breaking   150.4 N   50 N       strength       transverse breaking strength   123.3 N   40 N       exploding strength   551.6 kPa   200 kPa       seaming strength   128.8 N   40 N       longitudinal tearing strength   73.2 N   20 N       transverse tearing strength   98.7 N   20 N       water permeability   4578 g/m 2 /24 hrs   2500 g/m 2 /24 hrs       hydrostatic pressure   &gt;180 cmH 2 O   140 cmH 2 O       impact permeability   0 g   0.5 g                  
 
      Thus, according to the testing results shown in the above table, it clearly indicates that, based on the waterproof tape being adhered under the parameters of the heating blower proposed in the present invention, the adhering quality can truly be improved significantly to achieve results much higher than the CNS testing target values (with respect to for example one-time usable textiles such as one-time usable protective clothing as a standard).  
     EXAMPLE 7  
      The following table shows testing results of another CNS test performed with the foregoing parameters, wherein the testing object in this table is a structure adhered with a waterproof tape made of nylon, under an operation temperature of 480° C., an operation air pressure of 0.8 kg/cm 2 , an operation rolling pressure of 4 kg/cm 2 , and an operation rotation speed of 250 R.P.M.  
                       TABLE 7                                      Operation parameters of heating blower                                                 Operation           Operation   Operation air   Operation   rotation       Material of   temperature   pressure   rolling pressure   speed       waterproof tape   (° C.)   (kg/cm 2 )   (kg/cm 2 )   (R.P.M.)               nylon   480   0.8   4   250                                 Testing item   Testing result   Target value               blood infiltration   None   None       virus infiltration   None   None       protection efficiency   100%   95%       longitudinal breaking   652.7 N   200 N       strength       transverse breaking strength   467.2 N   200 N       exploding strength   1333 kPa   200 kPa       seaming strength   469.6 N   40 N       longitudinal tearing strength   180.8 N   20 N       transverse tearing strength   310.7 N   20 N       water permeability   1817 g/m 2 /24 hrs   1500 g/m 2 /24 hrs       hydrostatic pressure   &gt;180 cmH 2 O   140 cmH 2 O       impact permeability   0 g   0.5 g                  
 
      Thus, according to the testing results shown in the above table, it clearly indicates that, based on the waterproof tape being adhered under the parameters of the heating blower proposed in the present invention, the adhering quality can truly be improved significantly to achieve results much higher than the CNS testing target values (with reference to for example multi-times usable textiles such as multi-times usable protective clothing as a standard).  
      In each of the foregoing embodiments for the method for adhering waterproof tape according to the present invention, the adhering process of waterproof tape is performed by adjusting the ranges of parameters of the heating blower depending on the material of a waterproof tape that is to be adhered, so as to improve the adhesion strength of the waterproof tape and enhance a blocking effect of the waterproof tape against small particles and liquid materials. However, the present invention is not limited to utilizing the material of waterproof tape as a basis for adjusting the parameters. If the thickness and melting point of the waterproof tape and the thickness of the connecting structure can be measured in advance, the above adjusted ranges of parameters of the heating blower can further be adjusted optimally according to the measured thickness and melting point.  
      According to the present invention, for the parameters of the heating blower, the optimal operation rolling pressure for enhancing the adhesion strength of the waterproof tape and the blocking effect thereof against small particles and liquid materials is positively proportional to the combined thickness of the waterproof tape and the connecting structure. In other words, the larger the combined thickness of the waterproof tape and the connecting structure, the higher the required optimal operation rolling pressure is. In addition, the optimal operation temperature, operation air pressure and operation rotation speed of the heating blower are also positively proportional to the melting point of the waterproof tape. Therefore, the higher the melting point of the waterproof tape, the higher the optimal operation temperature, operation air pressure and operation rotation speed should be adjusted. The required adhering quality can be achieved by making corresponding adjustment according to the ranges of parameters proposed in the present invention.  
      Therefore, by the method for adhering waterproof tape in the present invention, the adhering quality of the waterproof tape can be improved and the blocking effect thereof against small particles and liquid materials can be achieved to increase the strength of textiles, such that the present invention can be applied to clothing and other textile products to satisfy various requirements of waterproofing, wind-proofing, dust-proofing, warm-keeping, and medical infiltration-proofing, etc. in the market.  
      The invention has been described using exemplary preferred embodiments. However, it is to be understood that the scope of the present invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements. The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.