JPH06287873A - Method for carrying out colored resist printing of fiber structure - Google Patents

Abstract

PURPOSE:To obtain a fiber structure excellent in discharge printing property without embrittling a protein fiber by subjecting a woven or knitted fabric consisting of a polyester fiber and a protein fiber to ground dyeing and printing a specific colored resist printing sizing agent containing a non-discharging disperse dye thereto. CONSTITUTION:A woven or knitted fabric consisting of a polyester fiber and a protein fiber (e.g. wool or silk) is previously subjected to ground dyeing using an acidic dye on the protein side and using a dischargeable disperse dye on the polyester side and a non-discharging disperse dye for polyester fiber and a colored resist printing sizing agent combinedly containing ethanolamine and reducting sugar are printed thereto and the woven or knitted fabric is dried and subjected to supper-heated stream treatment to provide the objective colored discharge printing woven or knitted fabric having vivid printed part without embrittling a protein fiber. The ethanol amines include preferably diethanolamine, methyldiethanolamines, etc. Furthermore, the fiber structure is also excellent in color fastness to light.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for color-preventing discharge printing of a woven or knitted material composed of polyester fibers and protein fibers.

[0002]

2. Description of the Related Art Many methods have been proposed so far for a color-preventing discharge-printing method for a woven or knitted fabric made of polyester fibers and protein fibers. In the method to be carried out, strength is lowered due to embrittlement of protein fibers, and there are many production problems such as mechanical corrosion due to hydrogen chloride gas generated by decomposition of tin chloride or processed tin and waste water treatment problem due to metal. In alkaline discharge, an extreme embrittlement of protein fibers occurs in order to obtain a clear hue.

JP-A-56-159378 describes that a base and a reducing saccharide are used in combination as a discharge agent, and there are restrictions on dyes for color mixing, hues of dyes used, and restrictions on fastness. In order to overcome the above, the bases used are inorganic and organic bases showing a pH value of 8 or more in a general 5% aqueous solution, and it is described that ethanolamines are selectively used. It has not been. JP-A-59-17
In Japanese Patent Publication No. 89, a method of using a reducing saccharide as a reducing agent is proposed, but a sufficient hue has not been obtained yet.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention focuses on reducing saccharides as a reducing agent, and the combined use of this and triethanolamine does not cause embrittlement of protein fibers constituting the same.
It is an object of the present invention to provide a method for coloring and preventing discharge of a fiber structure in which the hue of the discharge preventing section is clear.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, a fiber woven or knitted fabric composed of polyester fibers and protein fibers is dyed with an acid dye to dye the protein fibers, then the polyester fibers are dyed with a drawable disperse dye, and the fiber woven or knitted fabric is then blended with a non-drainable dye for polyester fibers, triethanol. This is a color preventive discharge printing method in which a color preventive discharge agent containing an amine and a reducing saccharide is printed, dried, treated with superheated steam and reduced to be washed.

The constituent features of the present invention will be described below.
As the mixed fiber structure of the polyester fiber and the protein fiber used in the present invention, polyester fiber and wool, silk,
Consists of one or more casein fibers. The mixing ratio of polyester fiber and protein fiber is usually 70-
90% by weight, preferably 75 to 85% by weight, and 10 to 30% by weight, preferably 15 to 25% by weight, of protein fiber. The two may be mixed by any of mixed spinning, mixed twisting, mixed weaving, and mixed knitting, but mixed spinning is particularly preferable.

The acid dyes and acid mordant dyes used in the present invention are ordinary ones. In the ground dyeing, protein fibers are dyed by an immersion method or a pad steam method with an acid or acid mordant dye, and a quinone-based dye capable of withstanding alkali reducing property is selected. Generally, when the dyed protein fibers remain on the handle, the finish is cleaner than when the reduced and whitened protein fibers remain.

The ground dyeing of polyester fiber is carried out by using a removable disperse dye by a pad dry method or a printing method. This is advantageous in that the ground color can be decomposed more easily than the ground dyed product obtained by the dipping method and the range of application of the ground color dye is expanded.

The reducing saccharides used in the present invention include monosaccharides, oligosaccharides and polysaccharides. Examples of monosaccharides include aldopentose, (D-; and L- arabinose, ribose, lyxose, xylose, etc.), ketopentose (D-; and L- ribulose, xylulose, etc.), aldohexose (D-; and L-). Allose, altrose, glucose, mannose, gulose, idose, galactose, talose, etc.) and ketohexose (D-; and L-psicose, fructose, sorbose, tagarose etc.). As oligosaccharides, disaccharides (maltose, cellobiose, gentiobiose, melibiose, lactose, turanose,
Sophorose) and trisaccharides (maltotriose, cellotriose, manninotriose, vanose, etc.). Glycogen, dextrin,
Examples include glucan and amino sugar. Particularly preferred among these are D-glucose, D-fructose, maltose and lactose.

Examples of ethanolamines include monoethanolamines, diethanolamines and triethanolamines. Particularly in the present invention, diethanolamines such as diethanolamine, methyldiethanolamine, ethyldiethanolamine and propyldiethanolamine are preferable. The ethanolamines used in the present invention are weakly alkaline, have excellent penetrability and hygroscopicity, and can show an excellent reduction discharge effect in combination with sugars.

As the printing method, it is possible to use a printing machine such as a hand print, an automatic screen printing machine, a semi-automatic screen printing machine, a rotary screen printing machine or a machine print. The amount of the printing paste to be attached may be the amount that is attached under the normal use conditions of each printing machine. The sizing agent component of the original paste used in the present invention is a highly etherified locust bean gum,
Examples include crystal gum and British gum.
The amount of reducing saccharides used is 1 to 40% by weight, preferably 5 to 3
0% by weight, the amount of triethanolamine used is 1 to 10
% By weight, preferably 3 to 8% by weight, steam is 120 to 210
Heat treatment with saturated steam, superheated steam, and dry heat at a temperature of ℃. Preferably, it is a method of high pressure steaming at 120 to 130 ° C. for 20 to 30 minutes or 160 to 180 ° C. for 5 to 5 minutes.
High heat steaming for 15 minutes. After this, the reduction cleaning is 60-
Perform at 90 ° C. for 10 seconds to 20 minutes.

[0012]

The present invention provides a polyester fiber printing which does not cause a decrease in strength due to embrittlement of protein fibers by combining reducing sugars and triethanolamines for color-preventing discharge dyeing of a woven or knitted fabric composed of polyester fibers and protein fibers. A colored, discharge-preventing, woven, and knitted fabric having clear parts is obtained. This is because the reducing sugars having a mild reducing action and the triethanolamines having excellent penetrating property, hygroscopic property and weak alkalinity can perform the color-preventing discharge-printing action without causing embrittlement of the protein fiber.

[0013]

EXAMPLES The present invention will be specifically described below with reference to examples. <Evaluation method> Color discharge property The hue of the color discharge fabric was visually evaluated. ○ Hue is clear △ Ground color remains slightly unclear × Ground color is not discharged and is poor Tensile strength JIS L-1096A method Light fastness Colored discharge cloth is irradiated with a fade meter for 20 hours, and visually judged to be grade 1 to 5 Ranked. ○ Almost no fading. △ Discolored × Remarkably discolored.

Example 1 Warp polyester filament yarn having a single yarn fineness of 1.5 denier Single yarn fineness of 2 denier weft polyester / wool blended yarn (blending ratio 85:15) having a density of 80 × 78 and a basis weight of 210 g / m 2. Using the jacquard fabric of No. ² , the wool part was dyed in the following acid dye-containing dyeing bath at 80 ° C for 60 minutes, washed and dried, and then dipped in the disperse dye solution putting bath described below and squeezed with a mangle. It is squeezed at a rate of 60%, dried, adhered with a color-preventing discharge paste consisting of the following components, and then heated at 180 ° C for 7 minutes with superheated steam, caustic soda 1g / l, hydrosulfite 1g / l, Ionette RK15 (Sanyo). Kasei Kogyo Co., Ltd.) 1 g / l, bath ratio 1:40, reduction washing treatment was performed in a bath for 10 minutes at 50 ° C., washing and drying.

Dyeing bath (ground dyeing of protein fiber) Acidor Black M-SRL 1% Acetic acid 1% 80 ° C. × 60 minutes Bath ratio 1:20

Padding bath (ground dyeing of polyester fiber) Miketone Polyester Discharge Blue R 12.0% by weight (manufactured by Mitsui Toatsu) DIANIX Yellow G-FS 4.0 (manufactured by Mitsubishi Kasei) Sumikaron Red S- BL 0.4 (manufactured by Sumitomo Chemical Co., Ltd.) Sodium alginate 0.3 Padding leveling agent 2.0 Water 83.3 ────────── 100.0

Color-preventive discharge dye; Embatex M-30 (30%) 50% by weight (manufactured by Kyoei Chemical Co., Ltd.) Cerylene Red BL 5 (manufactured by BASF) D Glucose 20 Diethanolamine 10 Water 15 ───────── 100

Reduction cleaning 60 ° C. × 5 minutes Hydrosulfite 1 g / l Caustic soda (48Be) 1 g / l Ionette RK15 1 g / l

[Examples 3 to 4] [Comparative Examples 1 to 8] The same processes as in Example 1 were carried out except that the alkali shown in Table 1 was used instead of D glucose and diethanolamine.

[Example 2] 50 count made of polyester and silk spinning yarn, density 118 / inch x 75 / inch, basis weight 12
The same treatment as in Example 1 was carried out except that 0 g of plain fabric was used.

The results of Examples 1 to 4 and Comparative Examples 1 to 8 are shown in Table 1.
Shown in.

[0022]

[Table 1]

[0023]

EFFECTS OF THE INVENTION According to the color-preventing discharge printing method of the present invention, there is provided a fiber structure which does not cause a decrease in strength due to embrittlement of the constituent protein fibers, and which is excellent in color discharge-printing property and light fastness. And its utility is obvious.

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[Procedure amendment]

[Submission date] March 3, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention focuses on reducing saccharides as a reducing agent , and when used in combination with ethanolamines , the constituent protein fibers do not become brittle, and the hue of the discharge-proofing area is reduced. It is to provide a method for color-preventing discharge printing of clear fiber structures.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

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[0005]

The present invention has the following constitution in order to achieve the above object. That is, a fiber woven or knitted fabric composed of polyester fibers and protein fibers is dyed with an acid dye, then the polyester fibers are dyed with a drawable disperse dye, and then the fiber woven or knitted fabric is used as a non-drainable disperse dye for polyester fibers, ethanolamine. This is a color preventive discharge printing method in which a color preventive discharge agent containing a salt and a reducing saccharide is printed, dried, treated with superheated steam, and reduced and washed.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

As the printing method, it is possible to use a printing machine such as a hand print, an automatic screen printing machine, a semi-automatic screen printing machine, a rotary screen printing machine or a machine print. The amount of the printing paste to be attached may be the amount that is attached under the normal use conditions of each printing machine. The sizing agent component of the original paste used in the present invention is a highly etherified locust bean gum,
Examples include crystal gum and British gum.
The amount of reducing saccharides used is 1 to 40% by weight, preferably 5 to 3
0% by weight , the amount of ethanolamines used is 1 to 10% by weight, preferably 3 to 8% by weight, and steam is heat-treated at a temperature of 120 to 210 ° C. by saturated steam, superheated steam and dry heat. Preferably, high pressure steaming is performed at 120 to 130 ° C. for 20 to 30 minutes, or high heat steaming is performed at 160 to 180 ° C. for 5 to 15 minutes. After this, reduction cleaning is performed for 60 to 90
C. 10 seconds to 20 minutes.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

[0012]

The present invention is applicable to reducing sugars and ethanol for color-preventing discharge dyeing of a woven or knitted fabric composed of polyester fibers and protein fibers.
By combining the anolamines with each other, it is possible to obtain a woven and knitted fabric with a clear coloring and imprinting on the printed part of the polyester fiber which does not cause a decrease in strength due to embrittlement of the protein fiber. This is because the reducing sugar having a mild reducing action and the ethanolamines having excellent permeability, hygroscopicity, and weak alkalinity can perform a color-preventing discharge printing action without causing embrittlement of protein fibers.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

[Examples 3 to 4] [Comparative Examples 1 to 8] The same processes as in Example 1 were carried out except that the alkali shown in Table 1 was used instead of diethanolamine.

[Procedure correction 6]

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[Name of item to be corrected] 0022

[Correction method] Change

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[0022]

[Table 1]

Claims (1)

[Claims] 1. A textile woven or knitted fabric comprising polyester fibers and protein fibers is dyed with an acid dye to dye the protein fibers, and then the polyester fibers are dyed with a dispersible disperse dye, and then the textile woven or knitted fabric is non-dispersed for polyester fibers. A coloring preventive discharge method in which a coloring preventive discharge agent containing a dye, ethanolamines and a reducing saccharide is printed, dried, and treated with superheated steam for reduction cleaning.