JPH0615751B2 - Discharge paste composition - Google Patents

Description

TECHNICAL FIELD The present invention relates to a paste composition for alkaline discharge dyeing, which has good penetrability, dischargeability, and color development of discharge dyeing dyes in textile printing.

2. Description of the Related Art In recent years, discharge printing has been increasing in textile printing, and alkaline discharge has attracted attention as well as tin discharge. In the alkaline discharge processing, the paste composition generally used for printing is
Very high paste solid content and poor flow properties. Therefore, in the actual alkaline discharge processing, the paste composition has poor penetration,
Defects such as adhesion to the back of the mold, mold blemishes, and crushed patterns (scratches) are likely to occur. Further, for the same reason, the adhered state of the color paste is a surface fog, so that a thread stain occurs in the coloring step. It is considered that the reason why such a paste composition is used in the alkaline discharge processing is that bleeding or halation is more likely to occur than in the tin discharge processing, and that they are prevented. If collapsed, the commonly used Embatex M-30 (Kyoei Kagaku KK) is a paste composition with the above-mentioned properties, and has drawbacks such as mold back adhesion, mold fluffing, and pattern collapse (slip). Occurs frequently. In order to remedy these drawbacks, various researches have been conducted by paste type makers and printing factories.

The present inventors have reached the present invention as a result of statistically diligently conducting many studies, including printing technology and machinery, without seeking the cause only in the paste composition for improving product quality. is there.

In general, as a method for improving the fluidity of a sizing agent, 1) using a sizing agent with essentially good fluidity, 2) increasing the degree of substitution with a carboxymethyl group in a synthetic sizing agent such as CMC, etc. To be When these are applied to the alkaline discharge processing, the defects such as mold blemishes, backside adhesion and pattern crushing (slippage) are eliminated, but in the alkaline discharge processing, the color developability of the color-dyeing dye is reduced, and depending on the sizing agent, , Bleeding or halation occurs, and the practicality is lost.

To prevent bleeding or halation, 1) set the viscosity of the sizing agent high, 2) use a sizing agent with a high solid content of the original paste, 3) attach the printing paste to the fabric depending on the type mesh and squeezing conditions. It is possible to reduce the amount. According to the results of the research conducted by these researchers,
It was revealed that the penetrability, bleeding, halation, etc. can be improved or prevented by selecting a sizing agent, but it was found that the coloring property of the color-dyeing dye is reduced in any case. .

Considering the factors that influence the color development, 1) color development temperature, humidity and time, 2) the adhesion state and amount of the printing paste on the fabric, 3) the color development characteristics of the original paste from the paste type, etc. In general, it is indispensable to use a deep-dyeing agent if the color development method using superheated steam is assumed. However, the printing paste for alkaline discharge usually has a pH of 11 or more and thus has a problem of stability, and there is no thickening agent usable which exhibits a deep dyeing effect. The sizing agent which is generally used at present has a good color-developing property by changing the amount of the sizing agent to the fabric to be fogged. But,
As mentioned earlier, this is also the cause of thread contamination.

SUMMARY OF THE INVENTION The inventors of the present invention have achieved the present invention as a result of earnest research, focusing on the fact that the use of a printing paste (commonly known as a half emulsion) containing an O / W emulsion, which has been pointed out conventionally, improves the color developability. Is.

The present invention is characterized by containing an aqueous paste solution and an oil phase component, water, a reducer (O / W emulsion) consisting of an emulsifier having an ether bond, and an alkali agent, a wetting agent and an aqueous dispersion of a disperse dye or water. Disclosed is a paste composition for discharging a disperse dye.

Detailed Description of the Structure of the Invention As the sizing agent to be used, preferably, the solid content is 7% to 30% in the commonly used sizing agent for printing, the permeability and the flowability are good, and the viscosity is reduced. A sizing agent that does not cause gelation and has alkali resistance is used. If it is 7% or less, bleeding is remarkable, and if it is 30% or more, the cost is high and it is not practically used. The normal range of use is preferably 10 to 25%. Fine gum S is a specific product name.
P-1, LVNO.3.DP-70 (above Daiichi Kogyo Seiyaku
Co., Ltd.) and the like. Next, a turpentine is generally used as the oil component in the reducer. The oil phase component is 30 to 7 in the reducer (O / W emulsion).
5 parts, preferably 50 to 70 parts are used. If it is 30 parts or less, the viscosity is too low, and if it is 75 parts or more, the viscosity is too high to be practical.

As the emulsifier, a surfactant having an ether bond and not hydrolyzed by an alkali, for example, an ester group is used, and it is usually used in an amount of 2 to 10 parts in the reducer. . Specifically, an emulsifier having the following structure is preferably used.

As specific products, Neugen EA130T, EA1
40, EA140L, EA150, EA142, EA15
2, EA137, EA157, EA167 (Daiichi Kogyo Seiyaku Co., Ltd.), Nonal 210, Pegnol L-18, L-
10, L-12, L-15, L-20, O-20 (above Toho Chemical Co., Ltd.) Emulgen series 120, 147, 1
30K, 220, 320P, 420, 430, 810,
911, 913, 920, 930, 931, 935, 95
0,985 (above Kao Soap Co., Ltd.) and the like. In the reducer, in addition to the oil phase component and emulsifier, the total is 1
Water is included so that the amount becomes 00 parts. 8 this reducer
0 part to 10 parts, preferably 35 to 20 parts, and 20 to 90 parts, preferably 65 to 80 parts, of a sizing agent solution are mixed to prepare an original paste for printing. The amount ratio of the sizing agent solution and the reducer is determined by the viscosity, the bleeding condition, the mold mesh, the cloth, etc., as in the case of the normal paste for printing.

As the alkaline agent, one that is usually used for alkaline discharge printing, and one that exhibits a pH value of 11 or more is preferably used.
Specific examples include sodium carbonate, potassium carbonate, sodium triphosphate, potassium triphosphate, sodium hydroxide, potassium hydroxide and the like.

As the wetting agent, stability of the paste composition for alkaline discharge, as long as there is no problem in compatibility with other chemicals, glycerin compounds, polyethylene glycol and the like,
Specifically, Dispensed AL-1, Dispensed AL-
2 (Nichika Chemical Industry Co., Ltd.) Color Fine AD, Color Fine AD-S, Polyethylene glycol # 30
0, polyethylene glycol # 400 (all above Dai-ichi Kogyo Seiyaku Co., Ltd.), glycerin and the like. In use, it may be used alone or in combination of two or more.

The amount ratio of each component of the paste composition for alkaline discharge is 40 to 90 parts, preferably 55 to 75 parts of the base paste, and 0.5 to 5 parts of the alkali agent (when it is 5 parts or more, zeitization may occur. 1) to 15 parts (more than 15 parts, bleeding becomes noticeable), preferably 3 to 12 parts, and an aqueous dye solution or water is added to make a total of 100 parts. Of course, these quantitative ratios are optimally determined depending on the relationship between the viscosity and the bleed, the cage mesh, the type of woven or knitted fabric, and the like. Further, it is possible to add various carriers and the like in order to improve dischargeability as in the case of ordinary alkali discharge printing (using only solution type sizing agent).

Hereinafter, the present invention will be further described with reference to examples.

Example 1 Polyester palace (50 denier / 36 filaments) was used as Dianex Brilliant Red A2B-FS (manufactured by Mitsubishi Kasei) 2% owf, Kayaron Polyester Yellow GLD-S (manufactured by Nippon Kayaku) 2 The dyed product was dyed at a high temperature of 0.5% owf by a conventional method, dried, and printed with a gintan pattern under the following conditions.

As Comparative Examples, Comparative Row 1 using Fine Gum DP-3 (22%, Daiichi Kogyo Seiyaku Co., Ltd.) in place of the original paste A in Example 1, and Fine Gum DP-70 (20% Daiichi) Also in Comparative Example 2 using Industrial Pharmaceuticals Co., Ltd., a Jintan pattern was printed in the same manner, and then the printing cloths of the three parties were dried at 100 ° C. for 3 minutes and steam-heated at 180 ° C. for 7 minutes, Then, reduction washing was carried out by a conventional method. The results are shown in Table 1.

Example 2 Polyester decyne (50 denier / 36 filaments) was added to Dispersol Blue R-PC (manufactured by ICI) 5%.
owf, Kayaron Polyester Yellow GLD-S 1% owf was subjected to high temperature dyeing by a conventional method, dried, and then a lattice pattern was printed under the following conditions.

As Comparative Examples, Comparative Example 3 in which a cell base (manufactured by Daicel Industries, Ltd., 24%) was used in place of the original paste A in Example 2, and Nikka gum 2A (10%, manufactured by Nichika Chemical Co., Ltd.)
Also in Comparative Example 4 using, the grid pattern was printed in the same manner, and the three printing cloths were dried at 100 ° C. for 3 minutes.
The mixture was steam-heated with superheated steam at 0 ° C. for 7 minutes, and then reduced and washed by a conventional method. The results are shown in Table 2.

Example 3 Polyester Jacquard Palace (50 denier / 36
Filament, weft 75 denier / 72 filament)
Dianix Brilliant Red A2B-FS 1% ow
At f, high-temperature dyeing was carried out by a conventional method, and after drying, a polka dot pattern was printed under the following conditions.

As a comparative example, instead of the base paste A in Example 3, in Comparative Example 5 in which Indalca AG / BV (10%, manufactured by Cesarpinia) was used, a polka dot pattern was printed in the same manner, and then the two printing fabrics were printed. Was dried at 100 ° C. for 3 minutes, steam-heated with superheated steam at 180 ° C. for 7 minutes, and then reduction washed by a conventional method. The results are shown in Table 3.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyotaka Sawada 167 No. Hamacho, Negami-cho, Nomi-gun, Ishikawa Komatsu Seiren Co., Ltd. In-house (56) Reference JP 58-186685 (JP, A) JP 54-55686 (JP, A) JP 58-91882 (JP, A)

Claims (1)

[Claims] 1. A paste aqueous solution; a reducer (O / W emulsion) comprising an oil phase component, water and an emulsifier having an ether bond; an alkali agent; a wetting agent; and a disperse dye aqueous dispersion or water. Disperse dye discharge paste composition.