JPH0491283A - Fabric printed with printing color paste and production thereof - Google Patents

Abstract

PURPOSE:To obtain a printed fabric with rare friction fouling by printing a textile fabric and then predrying the printed fabric at a high temperature. CONSTITUTION:A textile fabric composed of synthetic fiber, semisynthetic fiber, natural fiber, etc., is printed with a printing color paste and then predried at 130-210 deg.C to afford a printed fabric, excellent in film strength with rare friction fouling of >=4 class fouling resistance degree for other printed parts or unprinted parts when the printed parts are rubbed with a GAKUSHIN type tester for color fastness to rubbing under 200g load and 30 times of friction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dyed paste-printed fabric with very little scratching and a method for producing such a printed fabric.

[Conventional technology] In recent years, due to the trend toward higher-grade textile products and the increasing demand for differentiated products, in addition to the traditional single fiber materials, mixed fibers that combine fiber materials with a heat resistance of two or more are being widely used. It's starting to look like this. Along with this diversification of fiber types, dyeing methods are also increasing, in addition to the textile printing method that uses pigment resin (g resin), the textile dyeing method that uses single dyes or blended dyes. .

It is already known to print and dye textile fabrics made of a single fiber material or mixed fibers using, for example, disperse dyes or dyes consisting of disperse dyes and reactive dyes. In conventional methods, O/W emulsion or W/W emulsion is used.
After printing a color paste formulated based on O-type emulsion onto a fiber cloth using a screen printing machine, it is usually pre-dried at a temperature of 120° C. or lower.

This is a condition adopted in consideration of energy costs and dryer capacity, and to prevent the texture of the fabric from hardening.

[Problem to be solved by the invention]

However, according to the conventional method, the film strength of the printed colored paste material cannot be obtained sufficiently, so the printed fabric may touch the guide roll, etc., or when the printed fabric is shaken off or during movement. Alternatively, when the paper is wound up into a roll, the printed part may rub and stain other printed parts or non-printed parts, or the printed pattern may smear, that is, become scratched.

An object of the present invention is to provide a dyed paste-printed fabric that has excellent stain resistance in the printed area and does not cause scratches, and a method for producing the same.

[Means for Solving the Problems] In order to solve the above problems, the present inventors have conducted intensive research and found that by pre-drying the printing fabric at 130 to 210°C, sufficient film strength of the colored paste material can be obtained. The present invention was completed based on the discovery that the occurrence of scratches and stains can be minimized in the process after printing.

That is, the gist of the present invention is as follows.

(1) After printing the printing dyeing paste on the fiber cloth, on the pre-dried printed fabric, the printed part was subjected to a friction test under the following conditions, and the printed part was rubbed against other printed parts or non-printed parts. Stain resistance level is 4
Printed dyed paste stamped fabric that is above grade.

Friction test conditions: Using a Gakushin type abrasion fastness tester, load 200g, Wl stop count 30 times.

(2) 130-210'C after printing dyeing paste on fiber cloth
A method for producing a printed and dyed paste-printed fabric, characterized by pre-drying it in a drying process.

In the present invention, the fiber cloth may be any of synthetic fibers, semi-synthetic fibers, and natural fibers.

In the present invention, synthetic fibers include polyester, nylon, vinylon, etc. obtained from aromatic dicarboxylic acids or their ester-forming derivatives and glycols, and semi-synthetic fibers include acetate, viscose rayon, copper ammonia rayon, etc. Fibers include cotton, linen, wool,
Examples include silk. Fibers made of two or more of these fibers include polyester/cotton, polyester/rayon, polyester/wool, polyester/cotton/rayon,
Examples include polyester/cotton/wool, nylon/wool, and the like. Preferred among these fiber types are polyester, polyester/cotton, and polyester/rayon.

There are no particular restrictions on the printing paste used in the present invention, but polyester fiber cloth is usually prepared by dissolving a dye consisting of a disperse dye or a disperse dye and a reactive dye and a base paste in an appropriate solvent such as hot water. can use things.

Additives such as urea and baking soda can also be added to the printing and dyeing paste, if necessary.

Disperse dyes and reactive dyes are not particularly limited as long as they are used in ordinary textile printing and dyeing.

The base glue can be one used for normal textile printing. For example, starch, rubbers, polyvinyl alcohol, sodium alginate, carboxymethyl cellulose, dextrin, etc. alone or in combination, and a fat such as mineral turpentine. An emulsion paste is used, which is made by emulsifying group hydrocarbons with water and an emulsifier. Additives such as emulsifiers and reduction inhibitors may be added as necessary.

In the production of the printed, dyed, paste-printed fabric of the present invention, the pre-drying temperature is 130-210°C, preferably 150-170°C. Drying time is 7 minutes to 4 minutes at 130 to 210°C.
5 seconds is preferable, and when the temperature is 150 to 170°C, 2 minutes to 1.
2 minutes is preferred. A more preferable range is within the above range, where (Tl2O)M≧60 is satisfied, where the drying temperature is T ("C) and the processing time is M (minutes).

The stain resistance of the dyed paste-printed fabric of the present invention is grade 4 or higher when evaluated by the following method. The evaluation method for stain resistance is as follows.

After pre-drying, the printed fabric was subjected to WiWI using a Gakushin friction fastness tester under the conditions of a load of 200 g and 30 frictions, and the degree of staining in the undyed area was determined using the J15-L-0805 contamination gray scale. Evaluate on a scale of 1 to 5 based on the contamination criteria of JIS-L-0801.

1st class: Contamination is level 1 on the gray scale for contamination or exceeds that level. 2nd class: Contamination is at level 2 on the gray scale for contamination. 3rd grade: Contamination is at level 3 on the gray scale for contamination. 4th class. : Contamination is about No. 4 on the contamination gray scale Grade 5: Contamination is about No. 5 on the contamination gray scale [Example] The present invention will be explained in more detail and concretely by Examples below. is not limited to these.

Example 1 A 100% polyester plain weave was prepared with color paste according to the formulation shown below, and after printing with a screen printing machine, 150%
Pre-dry for 12 minutes at ℃. Thereafter, the dye was developed by steaming at 175° C. for 10 minutes under normal pressure or by drying at 210° C. for 13 minutes. Then wash it with water,
Furthermore, after soaping with a solution containing 3 g/l of an anionic surfactant [Tri-Ball, manufactured by Dai-Kogyo Seiyaku Aji Co., Ltd.], the dyed product was obtained by washing with water again.

<Color paste combination> CI No., Disperse Black 1
80 g Hot water 420 g Total 1000 g <Material paste combination> Modified starch Locust beer gum Chloric acid Sodium tartrate Emulsifier Tarpen 0 g 0 g 0 g g 0 g 0 g Total 1000 g Example 2 Polyester/cotton = 65/35 blended plain weave fabric with the following After adjusting the color paste by blending as shown, the same operation as in Example 1 was carried out to obtain a dyed product.

<Color paste combination> CI No., Disperse Black 1
100 gCI No, Reactive Black
k 8 80 g urea 100
g Baking soda 20g Water 200g Total 1000g <Original glue combination> Sodium alginate 35g Emulsifier 10g Miyokoralu-pen 100g Reduction inhibitor
10g Sodium tripolyphosphate 5g total
1000g Example 3 After adjusting the color paste in the blended plain weave fabric of polyester/rayon = 65/35 as shown below, Example 1
A dyed product was obtained in the same manner as above.

Disperse Black 1 CI No., Disperse Black 1
100 gCI No, Reactive Black
k 8 80 g urea 100
g baking soda 20g water
200g Original paste 500g Weight 1000g <Original paste formulation> Same as Example 2 Comparative Example 1 The same procedure as in Example 1 was carried out except that preliminary drying was performed at 110"C for 12 minutes.

Comparative Example 2 The same procedure as in Example 2 was carried out except that preliminary drying was performed at 120° C. for 12 minutes.

Method for evaluating stain resistance> After pre-drying, the printed fabric was rubbed using a Gakushin type friction fastness tester under the conditions of a load of 200g and 30 frictions to evaluate the degree of staining in the undyed area. -L-0805 contamination gray scale was used for evaluation on a scale of 1 to 5.

Table 1 shows the evaluation results of the scratch resistance for Examples 1 to 3 and Comparative Examples 1 to 2. Also, in Example 1, the evaluation of the scratch resistance when the drying conditions were changed. The results are shown in Table 2.

〔effect〕

When the colored paste used in the present invention is formed into a film under the drying conditions of the present invention, a film with a high strength of 17 kg/cJ or more can be obtained.

Therefore, according to the present invention, there is provided a dyed paste-printed fabric with high film strength of colored paste on the printed fabric and excellent stain resistance.

As a result, it is possible to prevent scratches and stains between the pre-drying process and the coloring process, which conventionally occur, and to obtain a good-quality dyed fabric.

Claims (2)

[Claims] (1) After printing the printing dyeing paste on the fiber cloth, on the pre-dried printed fabric, the printed part was subjected to a friction test under the following conditions, and the printed part was rubbed against other printed parts or non-printed parts. Stain resistance level is 4
Printed dyed paste stamped fabric that is above grade. Friction test conditions: Using a Gakushin type friction fastness tester, load 200g, friction 30 times. (2) A method for producing a printed and dyed paste-printed fabric, which comprises printing a printing and dyeing paste on a fiber cloth and then pre-drying it at 130 to 210°C.