JP2000129582A - Printing method for cellulose-including material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an one-phase printing method without using urea, which is excellent in chromogenic property of reactive dye and is excellent in reproducibility and uniformity in printing. SOLUTION: When a printing colored size including an alkali agent, reactive dye and size and not including urea on a cellulose fiber-including material and subjecting it to drying and then to steaming, an aqueous solution having <=12 pH value and including at least one of a group consisting of neutral salts and carbonates is sprayed to the above material. The above alkali agent is at least one kind selected from a group consisting of sodium bicarbonate, potassium bicarbonate, sodium acetate, potassium acetate, sodium trichloroacetate, potassium trichloroacetate, sodium acetoacetate and sodium acetodicarboxylate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-phase printing method for a cellulose fiber-containing material using a reactive dye, and more particularly, to the deterioration of water quality due to a nitrogen component when printing a reactive dye on a cellulose fiber-containing material. The present invention relates to a one-phase printing method for a cellulose fiber-containing material that does not use urea.

[0002]

2. Description of the Related Art
As one-phase printing method of the cellulose fiber-containing material,
After printing a color paste containing a reactive dye, urea, an alkali agent and a sizing agent on the above material, drying, and then steaming,
A method of fixing a reactive dye is used, and a large amount of urea is used to improve the coloring property of the reactive dye and reproducibility of printing. However, urea does not directly participate in the chemical reaction between the reactive dye and the cellulose fiber, and most of the urea is contained in the wastewater, which causes deterioration of water quality due to nitrogen components. In addition, if a one-phase printing method is used in which a color paste containing no urea is printed on cellulose fiber, dried, sprayed with water and then steamed, the color development of the reactive dye, reproducibility of printing, uniformity, etc. In view of the above, there is a problem that a satisfactory printed matter cannot be obtained.

[0003]

Means for Solving the Problems The present inventor has solved the above-mentioned problems and has provided a single-phase printing method using no urea, which is excellent in the coloring properties of reactive dyes, reproducibility of printing, and uniformity. As a result of intensive studies, the present invention has been completed.

That is, the present invention relates to at least one alkali agent selected from the group consisting of sodium bicarbonate, potassium bicarbonate, sodium acetate, potassium acetate, sodium trichloroacetate, potassium trichloroacetate, sodium acetoacetate and sodium acetodicarboxylate. A method for printing a cellulose fiber-containing material, comprising: printing a color paste containing a reactive dye and a sizing agent, and containing no urea, on a cellulose fiber-containing material, drying, and then heat-treating the material. And spraying an aqueous solution having a pH of 12 or less containing at least one salt selected from the group consisting of neutral salts and carbonates. Hereinafter, the present invention will be described in detail.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the method of the present invention, a reactive dye conventionally used in a one-phase printing method is used. Such reactive dyes include, for example, those having a vinyl sulfone-based reactive group as a fiber reactive group in the dye molecule, and in particular, at least one monochlorotriazine-based fiber reactive group in the dye molecule; A reactive dye having at least one vinyl sulfone-based fiber reactive group is preferably used. The concentration of the reactive dye in the color paste is not particularly limited, but is preferably 0.5 to 20% by weight. As the alkaline agent, at least one selected from the group consisting of sodium bicarbonate, potassium bicarbonate, sodium acetate, potassium acetate, sodium trichloroacetate, potassium trichloroacetate, sodium acetoacetate and sodium acetodicarboxylate is used. The concentration of these alkali agents in the color paste is not particularly limited, but is preferably 0.2 to 15% by weight. As a paste,
Examples thereof include commonly used pastes such as sodium alginate and starch. Although the concentration of the paste in the color paste is not particularly limited, it is preferably 0.2 to 15% by weight.

The printing of the reactive dye on the cellulose fiber-containing material is performed by printing a color paste having the above composition, if desired, using a commonly used plate such as a screen or a template.
After drying, an aqueous solution of the above neutral salt and / or carbonate having a pH of 12 or less is sprayed. The neutral salt concentration in the aqueous solution having a pH of 12 or less is preferably from 10 to 250 per liter.
g, more preferably 50 to 1 per liter.
00 g. Further, the carbonate concentration is preferably 1 to 50 g per liter, and more preferably 2 to 30 g per liter. As the neutral salt, for example, sodium chloride, potassium chloride, sodium sulfate,
Potassium sulfate and the like. Examples of the carbonate include sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate and the like. From the viewpoint of reproducibility of printing, an aqueous solution of a neutral salt or an aqueous solution of a weakly alkaline bicarbonate is preferred, and an aqueous solution of a mixture of these salts is particularly preferred. Although the spray amount of the aqueous solution is not particularly limited, preferably, the cellulose fiber-containing material 100 is used.
It is in the range of 5 to 30 parts by weight based on parts by weight.

After the spraying of the aqueous solution of the salt, the steaming heat treatment is preferably carried out immediately. Steaming heat treatment, for example, 102-110
This is done by treating for 2-15 minutes with a steamer adjusted to ° C. After steaming heat treatment, water washing,
Neutralization, water washing, soaping, hot water washing and drying are performed to obtain a printed product of the reactive dye.

In the present invention, as described below,
The cellulose fiber-containing material can also be printed in full or partial, in multiple colors. That is, first, a pad liquid containing a color paste prepared in advance but not containing urea is applied to a cellulose fiber-containing material using a mangle or the like adjusted to an appropriate drawing ratio, and after drying, a pad cloth is obtained. The pad cloth is printed with a urea-containing color paste prepared separately using a screen or the like on a desired pattern, and then dried. Subsequently, after spraying an aqueous solution having a pH of 12 or less containing at least one salt selected from the group consisting of the above-mentioned neutral salts and carbonates, by steaming and heat-treating, a multicolor printed matter having a ground color and a pattern color different from each other. Can be obtained. In this case, when the proportion of the ground color in the dyed object is sufficiently larger than the proportion of the pattern color,
The urea-derived nitrogen load lost in the wastewater is sufficiently reduced, and the multicolor printing method of the present invention is more effective than the conventional method using a color paste containing urea for both the ground color and the pattern color. It is industrially excellent.

[0009]

Next, the present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to these examples. The parts and percentages in the examples are
The parts by weight and% by weight are shown, respectively.

Example 1 The following color paste (1) prepared in advance is uniformly printed on a polynosic rayon cloth with a 120-mesh screen, and dried at 105 ° C. for 3 minutes. Next, 10% of the following spray aqueous solution (1) prepared in advance is applied to the printed and dried product using a rotor dampening system, and immediately treated in saturated steam adjusted to 102 ° C. for 10 minutes. After that, wash with water, neutralize, wash with water, soap, wash with hot water,
Drying gave a clear red print.

Color paste (1) Sumifix Brill Red BS liquid 25% 10 parts (Sumitomo Chemical, vinyl sulfone-type reactive dye, CIReactive Red111) Sodium alginate original paste (the following composition) 60 parts Sodium trichloroacetate 10 parts Water 20 parts total 100 copies

<Sodium alginate original paste> 84.9 parts of water Aloe Malphor HD 0.5 part (manufactured by Meisei Chemical, emulsifier) MS liquid 1.5 parts (manufactured by Meisei Chemical, anti-reducing agent) Sodium tripolyphosphate 0.3 part Sodium alginate 2.8 parts Terpen 10.0 parts Total 100 copies

Spray aqueous solution (1) 75.0 parts of water 25.0 parts of sodium chloride 100 parts in total

Comparative Example 1 The operation was carried out in the same manner as in Example 1, except that 10% of water was added instead of the spray aqueous solution (1) immediately before the steam heat treatment.
The color density on the surface of the obtained printed matter was 65% of the surface color density of the printed matter obtained in Example 1, and it was found that the color development was insufficient.

Example 2 Instead of sodium trichloroacetate, sodium acetate 9.
A bright red print was prepared in the same manner as in Example 1 except that a mixture of 8 parts and 0.2 parts of sodium bicarbonate was used, and the following spray aqueous solution (2) was used instead of the spray aqueous solution (1). was gotten.

Aqueous spray solution (2) Water 91.9 parts Sodium bicarbonate 3.0 parts Potassium carbonate 0.1 parts Anhydrous sodium sulfate 5.0 parts Total 100 parts

Example 3 Instead of sodium trichloroacetate, a mixture of 0.2 parts of sodium acetoacetate, 0.2 parts of sodium acetodicarboxylate, 0.2 parts of potassium bicarbonate, 2.4 parts of potassium acetate and 7.0 parts of sodium acetate was used. Except for using the following spray aqueous solution (3) instead of the aqueous solution (1),
By operating in the same manner as in Example 1, a clear red print was obtained.

Aqueous spray solution (3) Water 77.9 parts Potassium bicarbonate 2.0 parts Potassium carbonate 0.1 parts Potassium chloride 15.0 parts Potassium sulfate 5.0 parts Total 100 parts

Example 4 Instead of Sumifix Brill Red BS liquid, Sumifix
Supra Yellow 3RFliquid (Reactive Yellow 145, a bifunctional reactive dye manufactured by Sumitomo Chemical Co., Ltd.) was used and operated in the same manner as in Example 1 except that an aqueous spray solution (3) was used instead of the aqueous spray solution (1). A robust yellow-colored print is obtained.

Example 5 A pad liquid (A) containing the following color paste but not containing urea prepared in advance and having a squeezing ratio of 60% was applied to polynosic rayon cloth.
Is applied uniformly using a mangle adjusted to
Dry uniformly at 90-100 ° C using a hot-flow dryer. On this pad cloth, the following urea-containing color paste (B) prepared in advance is uniformly printed with a floral pattern using a 120-mesh floral pattern screen, and a hot-flow type paste adjusted to a temperature of 110 ° C. Dry using a dryer. Next, the spray aqueous solution (3) used in Example 3 was spray-applied by a rotor dampening system (manufactured by Suzuki Sangyo) adjusted to an application amount of 25%. And then washed with water, neutralized, washed with water, soaped, washed with hot water, and dried to obtain a high-quality printed material having a yellow ground color and a red floral pattern.

Pad solution containing color paste (A) In 83.0 parts of water, 3.0 parts of Sumifix Yellow GR liquid (reactive dye CIReactive Yellow 15 manufactured by Sumitomo Chemical),
2.0 parts of 10% sodium alginate, 8.0 of sodium acetate
Parts, stirring 4.0 parts of sodium trichloroacetate,
Prepare a uniform total of 100 parts of pad liquid in addition to the order.

Color paste (B) In 26.0 parts of water, 2.0 parts of Sumifix Br. Red HB (monochlorotriazine type reactive dye manufactured by Sumitomo Chemical), 10.0 parts of urea,
60.0 parts of sodium alginate base paste prepared in Example 1,
Resistor HWS (discharge agent manufactured by Meisei Chemical Co., Ltd.)
And 2.0 parts of sodium bicarbonate are added in order and uniformly dissolved to prepare a total amount of 100 parts of color paste.

Comparative Example 2 The procedure of Example 5 was repeated except that water was sprayed instead of the aqueous spray solution (3). Compared with the printed material of Example 5, the obtained printed material had a color density of 75% for the ground color yellow and 65% for the red color of the inserted color, indicating that the color development was insufficient.

[0024]

According to the present invention, a reactive dye can be favorably printed on a cellulose fiber-containing material by using a color paste containing no urea. Nitrogen load in the wastewater generated in the above can be reduced.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D06P 5/00 112 D06P 5/00 112 F term (Reference) 4H057 AA02 BA07 CA03 CA33 CA37 CA38 CB04 CB16 CB34 CB50 CB60 CB62 CC02 CC03 DA01 DA24 GA04 GA25 HA06 JA11 JB03

Claims (3)

[Claims] 1. A reaction dye comprising one or more alkali agents selected from the group consisting of sodium bicarbonate, potassium bicarbonate, sodium acetate, potassium acetate, sodium trichloroacetate, potassium trichloroacetate, sodium acetoacetate and sodium acetodicarboxylate. Containing glue,
A method for printing a cellulose fiber-containing material, wherein a color paste containing no urea is printed on the cellulose fiber-containing material, dried, and then steamed, wherein the group consisting of a neutral salt and a carbonate before steaming. PH containing one or more salts selected from
A method for printing a cellulose fiber-containing material, comprising spraying an aqueous solution of 12 or less. 2. The method according to claim 1, wherein the aqueous solution having a pH of 12 or less contains 10 to 250 g of neutral salt and / or 1 to 50 g of carbonate per liter. 3. The neutral salt is at least one selected from the group consisting of sodium chloride, potassium chloride, sodium sulfate and potassium sulfate, and the carbonate is selected from sodium bicarbonate, potassium bicarbonate, sodium carbonate and potassium carbonate. The method according to claim 1, wherein the method is at least one selected from the group consisting of: