JPS6088190A - Printing of modified polyester/cellulose fiber blended structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for printing a modified polyester/cellulose fiber mixed structure, and more specifically, the present invention relates to a method for printing a modified polyester/cellulose fiber mixed structure using a disperse dye and a reactive dye. Concerning the method of printing.

Traditionally, printing of polyester/cellulose fiber mixed products has been mainly done using pigment printing, which is easy to fix and is inexpensive.
Oats (-printing or resist discharge printing) using disperse dyes and reactive dyes is used for some high-quality printed products. In this printing method, disperse dyes and monochlorotriazine dyes are used in one step by high-temperature steaming. The dye is fixed by two-step dyeing, or by high-temperature steaming using disperse dyes and vinyl sulfone dyes, followed by a cold fix treatment to avoid alkali shock.

However, in this fixing method, the fixation rate of both the disperse dye and the reactive dye is low, resulting in high cost. In addition, there are disadvantages such as contamination of the cotton side with the disperse dye and decomposition of the anti-F3 dye during high-temperature steaming. There are drawbacks such as difficulty in color matching and poor dyeing, making it difficult to obtain clear, dark, and durable printed products. These disadvantages are exacerbated when hydrotropes such as urea are used to increase dye density.

The inventors of the present invention have conducted extensive research in order to solve the above-mentioned drawbacks and obtain clear, single-color, and durable printed products, and as a result, have arrived at an uninvented printing method. That is, 1 the present invention is a mixed structure of modified polyester fibers and cellulose fibers that are dyeable to cationic dyes under normal pressure, after printing or applying a dye solution or printing paste containing a disperse dye and a reactive dye, It is characterized by dye fixation by steaming treatment at ~105°C.

The modified polyester fiber used in the present invention is a polyester fiber that is dyeable with cationic dyes under normal pressure. glycol.

1 to 6 moles of a stellate-forming component (A) obtained from a glycol component mainly containing 1 mole (80 mole % or more) of a glycol component such as tetramethylene glycol or 1,4-cyclohexane dimetatool; The total of the components and the additional component (B) other than the alkylene thirephthalate-1 component is 3~
The modified polyester containing 20 molti was spun, stretched,
Examples include fibers obtained by heat setting and crimping depending on the case.

The sulfonic acid metal base-containing ester-forming component (A) includes 5-sodium sulfoisophthalic acid, sulfosuccinic acid, 4-sulfonaphthalene-2,7-dicarboxylic acid, 5-sulfonic acid metal base-containing ester-forming component (A),
In addition to acid components such as [4-sulfophenoxy]isophthalic acid, glycols containing sulfonic acid metal bases are exemplified, and 5-sodium sulfoisophthalic acid is particularly preferred. Further, as the additional component (B), isophthalic acid,
Acid components such as adipic acid, sepacic acid, and glutaric acid,
Glycol components such as diethylene glycol, diethylene glycol, and polyether glycol having a molecular weight of 1000 or less may be mentioned, but isophthalic acid and polyether glycol are preferable, and polyether glycol represented by the general formula [I] is particularly preferable. CiH2i0)m-R-0(-CjH+ jO-
)nH...-(x) (in the formula, R is #, cumulative number 2 to 2
0 divalent truncated hydrogen group.

rn+n is the same or different integer, 1≦m+n≦15,
++3 is an integer from 2 to 4) Note that the component (B) is preferably 2 molti or more relative to the acid component. Component (B) is produced by condensation of alkylene glycol in the polyester polycondensation step without being added as a copolymerization component, and can be imparted with atmospheric dyeability by spinning at high speed.

As a specific example of R in the above formula CI), for example (
A straight aliphatic hydrocarbon group such as -CHz+a.

Examples include Hs hydrogen group. The modified polyester fiber may be either stable or filament, and may be either flat yarn or crimped yarn.

Further, the fibers may be a mixture of these fibers, and the cross-sectional shape may be either circular or irregular. Furthermore, during the production of the modified polyester or at any stage after the production of l', various compounding agents such as silica, clay, kaolin, inorganic fibers such as calcium carbonate, polyalkylene glycols, organic phosphate ester salts, and sulfones may be added. Fibers containing organic additives such as acid salts may also be used.

Furthermore, the cellulose fibers used in the present invention include natural cellulose fibers such as cotton and linen.

Examples include regenerated cellulose fibers such as viscose rayon, holinozytsu crayon, and copper ammonium rayon, and any suitable fibers such as stable and filament fibers may be used.

These fiber mixed structures include yarns, fine materials, non-woven fabrics, rugs, tapes, raised blankets, etc., and the mixed forms include blends, mixed fibers, mixed knitting and weaving, multilayer structure fabrics, etc.
Composite yarns such as cover yarns and any constructions using them are included.

To explain the printing method in the present invention, in overprinting, after dyeing with an affinity dye if desired, the dye liquid or printing paste containing a disperse dye and an anti-F3 dye is printed or partially applied to the next structure. 1. Usually dried and then fixed. In addition, in anti-discharge printing, after printing or applying the above-mentioned dye liquid or printing paste, printing or partially applying a solution or paste containing an alkaline agent, reducing agent, etc. after drying, or After printing or partially applying a solution or paste containing an alkali agent, reducing agent, etc., 1. Normally drying. 2. Next, printing or applying a dye solution or printing paste containing a disperse dye and a reactive dye. 1. Normally drying. Then perform the fixing process.

In resist discharge printing, a disperse dye 1-reactive dye (substitution type) that is stable to an alkali agent or reducing agent may be blended into the liquid or paste containing the alkaline agent or reducing agent.

As dyes for cutting out, 1 disperse dyes are decomposed or solubilized by alkaline dyes 1 reactive dyes are addition type reactive dyes; It is essential to apply normal pressure steaming at 96 to 105°C. The time is usually about 5 to 60 minutes, especially 20 minutes.
~45 minutes is preferred.

In the present invention, by adopting such conditions, polyester fibers and cellulose fibers can be fixed at once under normal pressure, but unlike fixing by high-temperature steaming, the decomposition of the reactive dye and the dispersion of the disperse dye to the cellulose fiber occur. Contamination can be prevented, and as a result, printed products that are clear, dark, and durable can be obtained. The fact that atmospheric pressure steaming can obtain sufficient moisture necessary for the fixation of reactive dyes, and in many cases does not require the addition of hydrotropes, further improves the solidity M rate of reactive dyes on cellulose fibers. It is effective for improving These effects have remarkable advantages not only in terms of quality, such as clearer printing and sufficient whiteout, but also in terms of operation, equipment, and cost.

Another great feature is that it has a flexible texture. It is also possible to enhance the effect by alkali treatment before dyeing. After printing, it is washed and finished by conventional methods, but the desired performance is imparted by treatment with softeners, silicone-based and/or fluorine-based water repellents, polyester polyether-based antifouling agents, and various other processing agents. The present invention will be described below with reference to Examples. Note that parts and % in the examples mean parts by weight and % by weight.

Example 1 5-sodium sulfoisophthalic acid component is 3 mol % based on the total acid component, R in the general formula [I] is a 2,2-dimethylpropylene group, m 10n = 4 *i + j = 5
A blended yarn (30;
After scouring and bleaching a broadcloth consisting of (70% by weight) in a conventional manner, it was padded and pre-dried with a dye solution (A) having the following formulation.

Dye solution (A) Dispersol Black 2R-PC 13 parts (
ICI (disperse dye) 9- Remazol Black B, 6 parts (Hoechst reactive dye) Sodium alginate (5%) 5 parts Irgasol P 2 parts (Ciba Geigy carrier) Remazol Salt FD 2 parts (Hoechst alkaline agent) Urea 2 parts Water 70 parts Next, after printing and drying the following glue (B) % 105℃30
Steaming was carried out for 1 minute, and soaping was carried out in a conventional manner.

Glue (B) Sf (-2Q (Dai-Kogyo Seiyaku Co., Ltd. CMC) (10%9
4.5 parts Dystol HWS 3 parts (Meisei Chemical Co., Ltd., discharge printing aid) Color Fine AD 6 parts (Dai-Kogyo Seiyaku Co., Ltd., glycol-based aid) Superlight 0 2 parts (Sumitomo Chemical Co., Ltd., reducing agent) 10- Ubitex E B FO, 5 parts (Ciba Geigy Dispersed fluorescent brightener) Soda ash 2 parts Water 82 parts As a result, the clarity and mold edge sharpness that cannot be obtained by high-pressure steaming of unmodified polyethylene terephthalate and cellulose fiber blends are obtained. No staining due to highly dispersed dyes 1
It was a fast dyed product with good color reproducibility.

Example 2 A modified polyester containing 2.2 mol% of 5-sodium sulfoisophthalic acid component, 10 mol% of isophthalic acid component, and 1.7 mol% of diethyl glycol component, based on the total acid components, was taken at a speed of 3000 m/ A broadcloth consisting of a blended yarn (50:50 weight ratio) of modified polyester fiber staple and cotton (50:50 weight ratio) obtained by spinning, stretching and heat setting at a speed of 30 minutes was scoured and bleached using a conventional method. A two-color pattern was printed using a screen printing machine using printing pastes (C) and (D).

Printing paste (C) Sumifix Br111. Red BS 5 parts (Sumitomo Chemical Co., Ltd. reactive dye) Kayala, n Polyester RD-5pa
ste 5 parts (Nippon Kayaku Co., Ltd. disperse dye) 5H-20 (10%) 45 parts Resol Salt FD 2 parts Irgazol P 1 part Urea 5 parts Water 37 parts Printing paste (D) Remazol Br111.Yellow GGL
4 parts (Hoechst reactive dye) Kayalan Polyester LightYe
low 5G8 4 parts (Nippon Kayakusha vinyl sulfone type disperse dye) 5H-20
(10%) 45 parts Resol Salt FD 2 parts Irgasol P 1 part Urea 5 parts Water 39 parts Then, after drying, it was steamed at 105°C for 40 minutes and soaped at 80°C for 5 minutes.

As a result, there is no hot water contamination, and the dye is fixed on both sides of the bright and strong fibers in one step, red and yellow 21! A printed fabric of S was obtained.

Example 3 After scouring and bleaching a broadcloth made of a blended yarn (65:35 weight ratio) of modified polyester fiber and polynosic table used in Example 1 in a conventional manner, a dye solution (E) having the following formulation was applied. Due to padding.

Pre-dried.

Dye solution (E) Kayalan Polyester Red BD-
8paste 4 parts (Hoechst disperse dye) Sumifix Br111. Red BS 4 parts (Sumitomo Chemical Co., Ltd. reactive dye) Sodium alginate (5%) 50 parts 13- Irgazol P 1 part Water 41 parts Next, the following glue (F) was printed, dried, and heated at 105°C for 35 minutes.
Steaming was performed for a minute, and then aged for 3 hours using a conventional cold fix method, followed by washing with water and drying.

Glue (F) SH-20 (10%) 45 parts Restall HWS a part Color Fine AD 8 parts Dianix Yellow H2G-FS 5 parts (Mitsubishi Kasei Co., Ltd., disperse dye) Kayacion Yellow P-4G 5 parts (Nippon Kayaku Co., Ltd.) (monochlorotriazine type reactive dye) Soda ash 2 parts Water 32 parts As a result, a discharge-printed fabric with extremely clear difference colors was obtained.Also, the problem arises from the low fixation efficiency of reactive dyes seen in fixation by high-temperature steaming. There was no shortage of color yield, and the print was dark and sturdy.

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Claims (1)

[Claims] After printing or applying a dye solution or printing paste containing a monodisperse dye and a reactive dye to a mixed structure of modified polyester fibers and cellulose fibers that are dyeable to cationic dyes under normal pressure, steaming at 96 to 105°C is performed. A method for printing a modified polyester/cellulose fiber mixed structure characterized by dye fixation by heat treatment0