Discharge print paste and method of using same for the discharge printing of synthetic textile materials

Disperse dyes are dischargeable to white with a print paste including a thickening agent, lithium hydroxide, an organic acid, a polyethylene glycol compound, a polyoxyethylene sorbitan fatty acid ester and a polyalkyleneglycol ether. The print paste discharges a number of known disperse dyes, some which have been conventionally thought of as being alkali-resistant. A method of discharge printing of synthetic textile materials (e.g. polyester) is also disclosed.

FIELD OF INVENTION 
The present invention relates to a novel print paste for the discharge 
printing of textile materials made of synthetic fibers so as to achieve 
desired patterns, motiffs, and the like. 
In particular, the present invention relates to the surprising discovery 
that particular print paste formulations are functional so as to cause the 
alkali-discharge of disperse dyestuffs to white in synthetic textile 
materials, some of the dyestuffs useable with the present invention having 
conventionally been thought of as being alkali-resistant. In accordance 
with the present invention therefore, an expanded range of disperse 
dyestuffs used as ground shades can now be utilized in accordance with 
this invention for the alkali-discharge printing of synthetic textile 
materials. 
BACKGROUND AND SUMMARY OF THE PRESENT INVENTION 
Discharge printing is a well known technique in the textile industry for 
the production of white and colored sharply outlined patterns which are 
characterized by close-fitting, fine details, and small motiffs on 
contrasting color (usually darker) ground shades. It is broadly known 
therefore that such designs may be produced by printing a discharge print 
paste in a desired pattern onto the darker-colored ground shade produced 
with a dyestuff which is dischargeable to white when the paste-printed 
textile material is subjected to high-temperature steaming so as to permit 
the discharge agent in the print paste to distroy the dyestuff in those 
areas of the print pattern. The use of dyestuffs which are resistant to 
the discharge agent in the print paste are also known so that when the 
ground shade is discharged to white, the discharge-resistant dyestuff 
(conventionally known as a "reservable dyestuff") remains as a visible 
contrasting color to the ground color. 
With the advent of synthetic fiber textile materials, problems were 
encountered in discharging ground shades of disperse dyes which are fixed 
to the synthetic fibers (conventionally termed "fully dyed"). Accordingly, 
the discharge printing of synthetic textile materials, for example, 
polyesters, fully dyed with disperse dyestuffs presented significant 
problems to those in this art. Fully-dyed synthetic textile materials 
(i.e., those textile materials in which the dyestuffs are fixed or 
dissolved in the synthetic fibers) are resistant to attack by discharge 
agents in the aqueous discharge paste due to the highly crystalline 
structure and hydrophobic nature of the synthetic fibers, particularly, 
the polyesters. 
To overcome this problem, the discharge print process was modified by first 
padding the textile material with a dye liquor containing a disperse 
dyestuff and then drying or superficially drying the material at 
temperatures so as to prevent fixation of the dyestuff in the synthetic 
fiber. A desired pattern could then be printed onto the textile material 
with the non-fixed dyestuff therein so that when the padded and printed 
fabric is subsequently subjected to high-temperature steaming, the 
dyestuff will be discharged to white in the pattern areas of the print 
paste prior to its fixation in the synthetic fibers. The high-temperature 
steaming concurrently causes the nonpattern areas of the dyestuff to be 
fixed in the synthetic fibers so that upon subsequent rinsing, a white 
pattern area or contrasting color pattern area (if a reservable dye is 
included in the ground dyestuff) results. In this regard, the reader's 
attention is directed to U.S. Pat. Nos. 3,972,677 and 4,252,530, the 
disclosure of each being expressly incorporated hereinto by reference. 
The discharge printing method described immediately above whereby disperse 
dyestuffs are discharged prior to their fixation in the synthetic fibers 
of the textile material has been conventionally termed "discharge-resist 
printing" and this term will be utilized herein to distinguish it from the 
classical discharge printing technique whereby fully dyed fabrics with 
fixed dyestuffs are pattern printed with a discharge paste and then 
discharged via high temperature steaming. 
Discharge-resist printing, however, while overcoming many disadvantages 
associated with discharge printing of synthetic textile materials in 
accordance with the classical discharge printing technique is not without 
problems of its own. For example, when discharge-resist printing is 
attempted to be utilized for light-weight synthetic fabrics (i.e., less 
than about 40 grams per square yard), shading problems occur due to 
mechanical difficulties encountered when ground shades are padded onto the 
fabric and to dyestuff migration during the superficial drying step which 
thus leads to an unsatisfactory textile product. Moreover, it is not easy 
to completely destroy or discharge the ground dyestuff even when it is not 
fixed in the synthetic fibers without the use of strong reducing agents or 
oxidizing agents. Use of strong reducing or oxidizing agents is 
disadvantageous since they also attack the synthetic fibers per se thereby 
prejudicing their use with light-weight synthetic fabrics. Moreover, heavy 
metal salts such as stannous chloride are typically used in discharge 
resist printing so as to completely destroy the ground dyestuff (see, U.K. 
Pat. No. 1,412,681 and U.K. Pat. No. 1,440,904). Use of stannous chloride 
however is very corrosive to processing equipment and results in heavy 
metal effluent disposal problems. Moreover, the use of stannous chloride 
as a discharge agent is typically restricted to the use of anthraquinone 
disperse dyestuffs when colored discharges are required and which are 
available commercially in much smaller numbers than the more plentiful azo 
disperse dyestuffs. 
Alkali-dischargeable dyestuffs have also been proposed for use in the 
discharge resist printing techniques as described in, for example, U.K. 
Pat. No. 1,543,724 and U.S. Pat. No. 4,252,530, the disclosure of each 
being expressly incorporated hereinto by reference. Alkali dischargeable 
disperse dyestuffs having carboxylic acid ester groups of the type 
disclosed in U.K. Pat. No. 1,543,724 are, however, very sensitive to 
hydrolysis and require careful handling and strict control of pH and the 
use of sodium or potassium dichromate during processing which presents 
effluent disposal problems. Additionally, dyestuffs having carboxylic acid 
ester groups exhibit an affinity for nylon and hydrophilic natural fibers, 
such as cotton and rayon, after saponification of the ester groups during 
alkali treatment and thus tend to dye or stain these types of fibers 
causing so-called "halation" or the lowering of the sharpness of the 
pattern. Accordingly, such carboxylic acid ester group disperse dyes are 
typically not utilized to discharge print fabric blends of synthetic and 
natural fibers. In addition, diazo components and the coupling components 
required for the manufacture of dyestuffs containing carboxylic acid ester 
groups are specialty items thereby often times ruling out their use as 
being excessively expensive. Accordingly, only a very limited number of 
carboxylic acid ester group-containing disperse dyes is presently 
commercially available, namely CI disperse yellow 126, CI disperse orange 
127, CI disperse red 278 and 311, CI disperse blue 284 and 288, CI 
disperse green 9 and CI disperse brown 19. * 
FNT The source of all color indices used herein is "Color Index", 3rd edition 
(1971). 
Recently, it has been proposed that classical discharge printing of 
fully-dyed (i.e., fixed) lightweight polyester fabrics can be accomplished 
utilizing the carboxylic acid ester group-containing disperse dyestuffs of 
U.K. Pat. No. 1,543,724 in conjunction with a specially-formulated 
discharge paste which contains an alkali (preferably sodium hydroxide) 
together with a blend of ethoxylated products and polyols (i.e., Matexil 
PNAD and Matexil PN-DG, Imperial Chemical Industries PLC) as described in 
Brierley et al, "The Use of Disperse Dyes Containing Diester Groups to 
Produce Discharge Effects on Fully Dyed Lightweight Polyester Fabrics", 
JSDC, Vol. 99, pages 358-363 (Dec. 1983), the entire content thereof being 
expressly incorporated hereinto by reference. The alkali print paste 
proposed by Brierley et al however, appears to be suitable only for use 
with the carboxylic acid ester group-containing dyestuffs of the type 
described in U.K. Pat. No. 1,543,724 which, as indicated previously, are 
available in limited quantities and tend to be rather expensive due to 
their chemically special nature. 
Utilizing the above discussion as a background, the reader will undoubtedly 
appreciate that discharge printing of a hydrophobic synthetic material to 
overcome the above disadvantages has been needed for some time. 
DETAILED DESCRIPTION OF THE PREFERRED EXEMPLARY EMBODIMENTS 
The present invention relates to the surprising discovery that disperse 
dyes (some of which have been conventionally thought of as being 
alkali-resistant) for synthetic textile fabrics are nonetheless capable of 
being discharged by use of a specially-formulated discharge print paste. 
Accordingly, synthetic textile fabrics can now be discharge printed in 
accordance with the present invention thereby providing the discharge 
printer with a wide choice of dischargeable disperse dyes. Moreover, since 
the use of strong reducing and oxidizing agents is avoided by the present 
invention, light-weight synthetic fabrics can now be readily discharge 
printed. 
The discharge print paste of the present invention when utilized for the 
discharge printing of ground-dyed synthetic textile materials includes a 
thickening agent, lithium hydroxide, an organic acid, a polyethylene 
glycol compound, a polyoxyethylene sorbitan fatty acid ester, and a 
polyalkylene glycol ether. When utilized for the discharge resist printing 
of an unfixed ground-dyed synthetic textile material, the print paste will 
be an aqueous paste which preferably includes about 50 parts by weight of 
a thickening agent, about 13 parts by weight of lithium hydroxide, and 
about 12 parts by weight of a reducing agent, such as thiourea dioxide, 
glucose and/or anthraquinone. 
The thickening agent can be any of the conventional thickeners for print 
pastes usable for discharge printing of synthetic textile materials such 
as natural starch, British gum, crystal gum, natural and etherified locust 
bean gums, carboxymethyl cellulose, gum tragacanth, polyacrylic acid 
sodium salt and/or sodium alginate. Preferably, the thickening agent will 
comprise an aqueous solution of carboxymethyl cellulose and modified 
starch and will be present in an amount sufficient so that the resulting 
print paste will have a viscosity ranging between 5,000-36,000 cps. 
The organic acid will preferably be present in the print paste in an amount 
between 5 to 10 parts by weight. Preferred for use in the present 
invention are organic acids selected from the group consisting of 
ethanedioic acid, hydroxyacetic acid propanoic acid (e.g. 
2-hydroxy-1,2,3-propanetricarboxilic acid), butanedioic acid (e.g. 
2,3-dihydroxybutanedioic acid) and butenedioic acid, with 2,3-dihydroxy 
butanedioic acid being particularly preferred. 
Any suitable polyethylene glycol compound of the general formula HOCH.sub.2 
(CH.sub.2 OCH.sub.2).sub.n CH.sub.2 OH where n is an integer can be 
utilized in the successful practice of the invention. The polyethylene 
glycol compound should have a molecular weight between 400 to 8,000 and be 
present in the print paste in an amount between 5 to 10 parts by weight. A 
non-ionic water soluable surface active agent of the polyoxyethylene 
sorbitan fatty acid ester group of compounds is also present in an amount 
between 5 to 10 parts by weight of the print paste. The fatty acid ester 
of the polyoxyethylene sorbitan fatty acid ester compound can be a 
laurate, palmitate, stearate, tristearate, oleate, or trioleate with 
polyoxyethylene sorbitan laurate being particularly preferred. 
Additionally, a polyalkylene glycol ether in an amount between 5 to 10 
parts by weight of the print paste is present. Preferred for use in the 
present invention is alkyloxy (polyethylenoxypropylenoxy)isopropanol 
having a molecular weight between 600-700. Auxiliary chemicals can be 
added as desired and can include oxidizing agents and/or reducing agents 
in an amount not greater than about 5 by weight parts each. Suitable 
oxidizing agents include a persulphate or perchlorate of sodium, 
potassium, lithium and ammonium while suitable reducing agents include 
thiorea dioxide, glucose or anthraquinone. 
As is conventional, a reservable disperse dye resistant to the print paste 
can be formulated with the print paste components and can be applied to 
the synthetic textile fabric concurrently with the print paste so that 
when the ground disperse dye is discharged, a contrasting color to the 
ground color will be present. 
The process of the invention can be conveniently carried out, for example, 
by exhaust dyeing the synthetic textile material and then fixing the 
ground dyestuff following conventional practices normally employed in 
synthetic fabric dying with disperse dyestuffs. The dyebath may contain 
one or more of the dischargeable disperse dyestuffs dischargeable to white 
by the print paste of the present invention (which form the ground shade) 
in addition to dyeing auxillaries, such as carriers, dispersing and 
leveling agents and defoamers. The synthetic textile fabric can be 
conventionally dyed at 120.degree.-130.degree. C. for 1-11/2 hours 
followed by frame drying to remove creases at 160.degree.-190.degree. C. 
The fully ground-dyed textile material can then be printed in a pattern in 
those portions of the synthetic fabric where a white discharge effect is 
required with the discharge print paste discribed above. The paste-printed 
textile fabric can then be superficially dried at 110.degree.-140.degree. 
C. followed by high-temperature steaming for 6-10 minutes at a temperature 
of between about 115.degree. C. to 210.degree. C. during which the ground 
dyestuff in contact with the print paste is discharged to white (i.e., 
destroyed). Subsequent washing to remove any residual unfixed dyestuffs, 
decomposition products and impurities from the textile material followed 
by final drying will result in a synthetic textile fabric having desirable 
white print patterns on a colored ground. 
When colored discharge effects are required within the ground shade so as 
to provide colored patterns contrasting with the ground shade, the 
discharge print paste can be formulated to include a disperse dyestuff for 
the synthetic textile material which is resistant to the discharge print 
paste. Alternatively, a reservable disperse dyestuff can be applied 
together with the dischargeable disperse dyestuff forming the ground shade 
in which case the ground shade is dyed with a combination of both types of 
dyestuffs (i.e., one or more dischargeable dyestuffs together with one or 
more reservable dyestuffs). Table III by way of example lists various 
dyestuffs found to be resistant to the print paste of the present 
invention. 
The synthetic textile materials for which the present invention is 
particularly well suited can be in any suitable structural form, i.e., 
nonwoven, felt, and carpet materials or woven and knitted fabrics. The 
invention is particularly well-suited for light-weight textile materials 
(i.e., less than 45 grams per square yard) but could also advantageously 
be utilized in heavy weight textile materials (i.e., greater than 180 
grams per square yard). Particularly perferred synthetic fibers forming 
the textile materials usable with the present invention include aromatic 
polyester fibers, and polyamides (e.g., fabric produced by duPont under 
the registered trademark Qiana. 
The process of the invention can also be conveniently carried out by way of 
conventional discharge-resist printing techniques. For example, the fabric 
can have the ground shade padded thereon via a pad roller/screen on the 
print machine with a dye liquor which contains one or more of the 
dischargeable disperse dyestuffs listed in Tables I and II below, in 
addition to customary dyeing and padding auxiliaries such as thickeners, 
carriers, antimigrants, humectants and defoamers, the pad-dyed fabric can 
then be superficially dried at 100.degree.-130.degree. C. to avoid 
premature fixation of dyestuffs, and then printed in those portions where 
white or colored patterns are required with the discharge print paste of 
this invention. Drying of the printed fabric at 110.degree.-140.degree. 
C., and then high temperature steaming for 6-10 minutes at 
170.degree.-190.degree. C. causes the disperse dystuffs which are not in 
contact with the print paste to be fixed on the textile material. The 
unfixed dyestuffs, any decomposition products and impurities are then 
removed from the textile fabric by a washing treatment. Again when a 
colored effect is desireable, one or more disperse dyestuffs for the 
textile material which are not adversely affected by the discharge print 
paste may be incorporated in the print paste formulation. Alternatively, 
such disperse dyestuffs can be applied together with the dischargeable 
disperse dyestuffs used for the coloration of the ground shade. 
The dischargeable disperse dyestuffs used for the coloration of the ground 
shade according to the invention can be a dyestuff of any of the known 
classes of disperse dyestuffs and, in particular, of the nitro, quinoline, 
aminokitone, methine, azomethine, anthraquinone, and azo (specially 
monoazo) series. Such dyestuffs are those which are free from dicarboxylic 
acid ester groups which have typically been thought of as being 
alkali-resistant and thus unsuitable for use in discharge printing 
applications. By way of example, the dischargeable disperse dyestuffs 
which are dischargeable by the print paste according to the present 
invention are dyestuffs noted below in Tables I and II, while those 
dyestuffs resistant to the print paste (i.e. reservable) are noted below 
in Table III. 
TABLE I 
______________________________________ 
Color Index No. Chemical Class 
______________________________________ 
C.I. Disperse Yellow 44 
Monoazo 
C.I. Disperse Yellow 58 
Aminoketone 
C.I. Disperse Yellow 64 
Quinoline 
C.I. Disperse Yellow 124 
Lactone 
C.I. Disperse Yellow 143 
Quinophthalone 
C.I. Disperse Yellow 198 
Monoazo 
C.I. Disperse Yellow 200 
Methine 
C.I. Disperse Yellow 210 
Methine 
C.I. Disperse Red 35 Monoazo 
C.I. Disperse Red 86 Anthraquinone 
C.I. Disperse Red 59 Anthraquinone 
C.I. Disperse Red 91 Anthraquinone 
C.I. Disperse Red 151 Disazo 
C.I. Disperse Red 159 Anthraquinone 
C.I. Disperse Red 263 Anthraquinone 
C.I. Disperse Blue 77 Anthraquinone 
C.I. Disperse Blue 79 Monoazo 
C.I. Disperse Blue 95 Anthraquinone 
C.I. Disperse Blue 102 
Monoazo 
C.I. Disperse Blue 109 
Anthraquinone 
C.I. Disperse Blue 121 
Azo 
C.I. Disperse Blue 122 
Monoazo 
C.I. Disperse Blue 130 
Monoazo 
C.I. Disperse Blue 139 
Azo 
C.I. Disperse Blue 165 
Monoazo 
C.I. Disperse Blue 283 
Monoazo 
______________________________________ 
TABLE II 
______________________________________ 
##STR1## 
##STR2## 
##STR3## 
##STR4## 
##STR5## 
##STR6## 
##STR7## 
##STR8## 
##STR9## 
##STR10## 
##STR11## 
______________________________________ 
TABLE III 
______________________________________ 
Color Index No. 
______________________________________ 
C.I. Disperse Yellow 13 
C.I. Disperse Yellow 74 
C.I. Disperse Yellow 77 
C.I. Disperse Yellow 88 
C.I. Disperse Yellow 82 
C.I. Disperse Yellow 108 
C.I. Disperse Yellow 182 
C.I. Disperse Yellow 199 
C.I. Disperse Orange 17 
C.I. Disperse Orange 25 
C.I. Disperse Orange 31 
C.I. Disperse Orange 32 
C.I. Disperse Orange 33 
C.I. Disperse Orange 44 
C.I. Disperse Orange 48 
C.I. Disperse Orange 53 
C.I. Disperse Orange 58 
C.I. Disperse Orange 59 
C.I. Disperse Orange 62 
C.I. Disperse Orange 66 
C.I. Disperse Orange 95 
C.I. Disperse Orange 98 
C.I. Disperse Red 1 
C.I. Disperse Red 11 
C.I. Disperse Red 65 
C.I. Disperse Red 108 
C.I. Disperse Red 117 
C.I. Disperse Red 177 
C.I. Disperse Red 303 
C.I. Disperse Red 316 
C.I. Disperse Blue 3 
C.I. Disperse Blue 87 
C.I. Disperse Blue 122 
______________________________________ 
White or colored effects within a ground shade can thus be obtained by the 
present invention on synthetic textile materials, and the colorations so 
obtained have exhibited good color fastness.

EXAMPLES 
The invention is further illustrated by way of the following nonlimiting 
examples in which the parts and percentages noted are by weight unless 
otherwise indicated. 
EXAMPLE 1 
A woven lightweight fabric made of polyethylene terephthalate continuous 
filament yarns, each yarn consisting of 34 filaments and having a 70 
denier, is ground dyed at a temperature of 130.degree. C. for 60 minutes 
sufficient to fix the dyestuffs to the fibers. The following dyestuffs 
composition is used: 
C.I. Disperse Blue 283 (Latyl Navy EFSN): 1.5% OWF* 
FNT * OWF=On Weight of Fabric. 
C.I. Disperse Yellow 44 (Esterophile Yellow 2RL): 2.0% OWF 
The ground-dyed fabric is frame dried at 170.degree. C. and is then printed 
in accordance with a predetermined pattern with a discharge print paste 
having the following composition: 
______________________________________ 
7% aqueous solution of carboxymethyl 
55 parts 
Cellulose + modified starch 
Lithium Hydroxide (57% strength) 
12 parts 
2,3-dihydroxybutanedioic acid 
7 parts 
Polyethyleneglycol (M.W. 400) 
8 parts 
Polyoxyethylene sorbitan laurate 
8 parts 
Alkoxy (polyethylenoxypropylenoxy) 
3 parts 
isopropanol (M.W. 640) 
Lithium perchlorate 3 parts 
Uvitex EBF (Optical Brightener 
2 parts 
Ciba Geigy) 
Water 2 parts 
100 parts 
______________________________________ 
The fabric is then dried at 138.degree. C. for 2 minutes, and subsequently 
subjected to high temperature steaming for 6 minutes at 183.degree. C. 
The steamed fabric is then rinsed in cold water, treated for 5 minutes in 
an aqueous solution of 0.2% caustic soda (pearl or flake), 0.2% sodium 
hydrosulphite, and 0.2% of a non-ionic detergent at 65.degree. C., rinsed 
in hot water followed by cold water, and is finally dried. 
A white design on a dark green ground is obtained. 
EXAMPLE 2 
The above procedure outlined in EXAMPLE 1 is repeated using the following 
dye composition for dyeing the ground shade. 
C.I. Disperse Blue 283 (Latyl Navy EFSN): 1.5% OWF 
C.I. Disperse Yellow 77 (Resolyn Yellow C6GL): 2% OWF 
A yellow design on a dark green ground is obtained owing to the 
reservability (i.e. resistance to the print paste) of the C.I. Disperse 
Yellow 77 dyestuff. 
EXAMPLE 3 
A woven lightweight fabric made of polyethylene terephthalate continuous 
filament yarns, each yarn consisting of 47 filaments and having a 50 
denier count is ground dyed and discharge printed as described in EXAMPLE 
1 using 5 parts of C.I. Disperse Red 11 (Dispersol Powder Red B3B) in the 
discharge printing formula. A red design on a dark green ground is 
obtained owing to the reservability of the C.I. Disperse Red 11. 
EXAMPLE 4 
The above procedures outlined in EXAMPLE 1 are repeated using the dyestuffs 
listed below: 
A. 1.5% OWF, yellow disperse dyestuff of the Formula; 
##STR12## 
A White design on a yellow ground is obtained. 
B. 3.0% OWF red disperse dyestuff of the Formula; 
##STR13## 
A white design on a prink ground is obtained. 
C. 1.5% OWF blue disperse dyestuff of the Formula: 
##STR14## 
A white design on a blue ground is obtained. 
D. 1.5% OWF blue disperse dyestuff of the Formula: 
##STR15## 
A white design on a blue ground is obtained 
E. A 1.5% OWF blue disperse dyestuff of the Formula: 
##STR16## 
A white design on a blue ground is obtained. 
EXAMPLE 5 
The above procedures outlines in EXAMPLE 1 are repeated using the following 
two disperse dyestuffs for coloring the ground shade. 
2.5% OWF 
##STR17## 
1.0% OWF 
##STR18## 
A white design on a navy blue ground is obtained. 
EXAMPLE 6 
The above procedures outlined in EXAMPLE 5 are repeated using 4 parts C.I. 
Disperse Red 316 (Sodycron Scarlet 2PY) in the discharge printing paste 
formula. 
A bright scarlet design on a navy blue ground is obtained. 
EXAMPLE 7 
A polyethylene terephthalate woven textile material is padded into a 
padding liquor comprising: 
______________________________________ 
C.I. Disperse Red 224 60.0 parts 
(Palanil Red 3GL liquid) 
2% aqueous solution of sodium alginate 
120.0 parts 
Monosodium phosphate 0.5 parts 
Water 819.5 parts 
1000.0 parts 
______________________________________ 
with a 60% pickup (on the weight of the fabric) and dried at 100.degree. C. 
for 4 minutes without fixing the dyestuff to the fibers. The fabric is 
then printed in accordance with a predetermined pattern with a discharge 
printing paste having the following composition: 
______________________________________ 
9% aqueous solution of Indalca .RTM. 
50 parts 
locust bean gum ether 
Lithium hydroxide 13 parts 
Glucose 5 parts 
Thiourea Dioxide 7 parts 
Water 25 parts 
100 parts 
______________________________________ 
The paste-printed fabric is dried at 138.degree. C. for 2 minutes, high 
temperature steamed for 6 minutes at 183.degree. C., rinsed in cold water, 
treated for 5 minutes in an aqueous solution of 0.2% caustic soda (pearl 
or flake), 0.2% sodium hydrosulphite and 0.2% of a non-ionic detergent at 
65.degree. C., sequentially rinsed in hot and cold water, and finally 
dried. A white design on a bright red ground is obtained. 
EXAMPLE 8 
A padding liquor comprising: 
______________________________________ 
2% aqueous solution of Sodium Alginate 
120.0 parts 
C.I. Disperse Blue 56 43.0 parts 
(Latyl Blue BCN powder) 
C.I. Disperse Yellow 34 60.0 parts 
(Eastman Yellow 4RLF powder) 
C.I. Disperse Red 224 32.5 parts 
(Palanil Red 3GL liquid) 
Monosodium phosphate 0.5 parts 
Water 744.0 parts 
1000.0 parts 
______________________________________ 
is padded onto a polyethylene terephthalate woven textile material to 60% 
liquor pickup, and the textile material is dried and discharge printed as 
described in EXAMPLE 7. A white design on a black ground is obtained. 
EXAMPLE 9 
A polycarbonamide Qiana.RTM. knit fabric is padded into a padding liquor 
comprising: 
______________________________________ 
2% aqueous solution of Sodium Alginate 
120.0 parts 
C.I. Disperse Blue 56 35.0 parts 
(Latyl Blue BCN powder) 
C.I. Disperse Yellow 34 25.0 parts 
(Eastman Yellow 4RLF) 
C.I. Disperse Red 224 20.0 parts 
(Palanil Red 3GL) 
Monosodium phosphate 0.5 parts 
Water 799.5 parts 
1000.0 parts 
______________________________________ 
with a 60% pickup. The fabric is then dried at 100.degree. C. for 4 minutes 
and printed in accordance with a predetermined pattern with a discharge 
printing paste having the following composition: 
______________________________________ 
9% aqueous solution of Indalca .RTM. 
50.0 parts 
locust bean gum ether 
Lithium Hydroxide 20.0 parts 
Glucose 5.0 parts 
Thiourea dioxide 7.0 parts 
Water 17.0 parts 
100.0 parts 
______________________________________ 
The fabric is then dried, high temperature steamed, washed and dried as is 
carried out in EXAMPLE 7. A white design on a black ground is obtained. 
EXAMPLE 10 
The above procedures for Example 8 are repeated twice, one time using 4 
parts C.I. Disperse Red 11 (Dispersol Red B3B powder) and the other time 
using 4 parts C.I. Disperse Yellow 199 (Samaron Yellow H10GF) in the 
discharge print formulation. 
Red and bright yellow designs on a black ground are obtained, respectively.