CN104947465B - A kind of wear-resisting printing coating for textile fabrics of rapid-curing cutback - Google Patents

Abstract

The invention relates to a quick-drying wear-resistant textile printing coating. The coating of the invention adopts acrylic resin which is prepared by a specific process and is beneficial to improve the drying rate of the coating. At the same time, diacetone acrylamide and alkyd resin are added to further improve the drying rate of the paint.

Description

A quick-drying wear-resistant textile printing paint

technical field

The invention relates to a quick-drying wear-resistant textile printing paint.

Background of the invention

The color coating containing dyes or pigments is directly printed on white or ground-colored fabrics, and the dyes or pigments are dyed and fixed on the printing site to obtain various patterns. The printing method is the direct printing process. The principle of direct printing of pigments on fibers is different from that of general dyes. It uses binders to fix insoluble pigment particles on textiles. The pigment printing process is environmentally friendly, does not require washing, has little restrictions on fabrics, simple process, convenient color matching, easy adjustment and control of color light, and printed patterns with clear outlines, distinct layers, and a three-dimensional effect. The printing effect can be seen directly on the printing machine, the process is relatively short, and the printing quality is easy to control. It is a very mature and widely used process.

With the rise of personalized clothing customization in the Internet age and the timely delivery requirements in the e-commerce field, the requirements for rapid mass production and packaging and delivery of personalized customized clothing are getting higher and higher. This requires that the printing paint can dry quickly and firmly in a very short period of time to avoid sticking and staining during packaging. However, the current pigment printing has relatively poor drying time, short-term friction resistance, scrub resistance, and heat resistance stability after printing, which affects the development of personalized clothing customization.

Contents of the invention

For solving the above-mentioned problem of printing paint, the present invention adopts following technical scheme:

A quick-drying wear-resistant textile printing paint, consisting of the following raw materials in parts by mass:

Diacetone acrylamide 10 parts

Alkyd resin 15 parts

20 parts acrylic resin

Leveling agent 1 part

thickener 2 parts

Fatty alcohol polyoxyethylene ether 0.5 parts

Thinner 1.5 parts

Pigment 50 parts

Silica powder 10 parts

3 parts bentonite

Aluminum oxide powder 10 parts

3 parts lignosulfonic acid

4 parts etherified starch

40 parts of distilled water;

The preparation of printing paint comprises the steps:

a) Weigh the following components in parts by weight: 10 parts of diacetone acrylamide, 15 parts of alkyd resin, 20 parts of acrylic resin, 40 parts of distilled water, 1 part of leveling agent, 2 parts of thickener, 0.5 part of fat Alcohol polyoxyethylene ether, 1.5 parts of diluent, etc., are added to the mixer, at a speed of 350 rpm, fully stirred and dispersed for 30 minutes, and the mixed solution is obtained after all components are mixed evenly;

b) Weigh 50 parts of pigment, 10 parts of silica powder, 3 parts of bentonite, 10 parts of alumina powder in parts by weight, mix well, then add the mixture to the mixed solution prepared in step 1), add 3 parts by weight 4 parts of lignosulfonic acid, 4 parts of etherified starch, stirred by a mixer at a speed of 400 rpm for 1 hour, then fully ground by a grinder, and filtered to obtain a coating composition;

Described acrylic resin adopts following method to make:

In terms of parts by weight, take 20 parts of ethanol, 20 parts of propanol, and 15 parts of isopropyl acetate, mix them evenly, add them into the reactor, raise the temperature to 80°C at a rate of about 5-10°C/min, keep it warm for 30min, and then Add 20 parts of ethyl acrylate, 10 parts of methacrylic acid, 15 parts of hydroxyethyl acrylate, 2 parts of acetylacetone acrylamide, 1 part of azobicyclohexylcarbonitrile, stir and mix evenly, react at constant temperature for 5 hours, and cool down to 30 ℃, 1.5ml of concentrated ammonia water was added dropwise, and stirred for 30 minutes to obtain an acrylic resin.

The leveling agent is a silicone leveling agent.

Beneficial effect:

1) The coating of the present invention contains water-dispersible acrylic resin, which has good adhesion and fast drying speed. Using it as one of the film-forming components of the coating can significantly improve the drying rate of the coating slurry film.

2) Diacetone acrylamide and alkyd resin, which are beneficial to improving the drying rate, are also used in the coating of the present invention, which cooperates with the acrylic resin to further improve the drying rate of the ink paste.

3) The water-based paint with a fast drying speed of the present invention can significantly reduce quality problems such as pattern adhesion and staining caused by the slow drying speed of the water-based paint during the printing and packaging process, reduce production costs, and have great practical application value.

4) The coating of the present invention has good friction resistance and scrubbing fastness within a short period of time after printing.

5) The present invention does not contain harmful substances such as formaldehyde, heavy metals and organic tin, and is environmentally friendly and healthy.

detailed description

The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope expressed by the examples.

Example 1

Acrylic resin preparation:

In terms of parts by weight, take 20 parts of ethanol, 20 parts of propanol, and 15 parts of isopropyl acetate, mix them evenly, add them into the reactor, raise the temperature to 80°C at a rate of about 5-10°C/min, keep it warm for 30min, and then Add 20 parts of ethyl acrylate, 10 parts of methacrylic acid, 15 parts of hydroxyethyl acrylate, 2 parts of acetylacetone acrylamide, 1 part of azobicyclohexylcarbonitrile, stir and mix evenly, react at constant temperature for 5 hours, and cool down to 30 ℃, 1.5ml of concentrated ammonia water was added dropwise, and stirred for 30 minutes to obtain an acrylic resin.

Preparation of paint:

Weigh the following components in parts by weight: 10 parts of diacetone acrylamide, 15 parts of alkyd resin, 20 parts of acrylic resin, 40 parts of distilled water, 1 part of leveling agent, 2 parts of thickener, 0.5 part of fatty alcohol poly Oxyethylene ether, 1.5 parts of diluent, etc., were added to the agitator, at a speed of 350 rpm, fully stirred and dispersed for 30 minutes, and the mixed solution was obtained after all components were mixed evenly;

Weigh 50 parts of pigment, 10 parts of silica powder, 3 parts of bentonite, 10 parts of alumina powder in parts by weight, mix evenly, then add the mixture to the mixed solution prepared in step 1), add 3 parts by weight of Lignosulfonic acid and 4 parts of etherified starch were stirred by a mixer at a speed of 400 rpm for 1 hour, then fully ground by a grinder, and filtered to obtain a coating composition.

Comparative example 1

Weigh the following components in parts by weight: 25 parts of diacetone acrylamide, 20 parts of alkyd resin, 40 parts of distilled water, 1 part of leveling agent, 1 part of thickener, 0.5 part of fatty alcohol polyoxyethylene ether, 1.3 Parts of diluent, add in the mixer, fully stir and disperse for 30 minutes at a speed of 350 rpm, and wait until the components are evenly mixed to obtain a mixed solution;

Weigh 50 parts of pigment, 10 parts of silica powder, 3 parts of bentonite, 10 parts of alumina powder in parts by weight, mix evenly, then add the mixture to the mixed solution prepared above, and add 3 parts by weight of lignin The sulfonic acid was stirred by a mixer at a rate of 400 rpm for 1 hour, then fully ground by a grinder, and filtered to obtain a coating composition.

Comparative example 2

Take the following components in parts by weight: 25 parts of alkyd resin, 20 parts of acrylic resin prepared in Example 1, 40 parts of distilled water, 1 part of leveling agent, 1 part of thickener, 0.5 part of fatty alcohol polyoxygen Add vinyl ether and 1.3 parts of diluent to the agitator, fully stir and disperse at a speed of 350 rpm for 30 minutes, and wait until the components are evenly mixed to obtain a mixed solution.

Weigh 50 parts of pigment, 10 parts of silica powder, 3 parts of bentonite, 10 parts of alumina powder in parts by weight, mix evenly, then add the mixture to the mixed solution prepared above, and add 3 parts by weight of lignin The sulfonic acid was stirred by a mixer at a rate of 400 rpm for 1 hour, then fully ground by a grinder, and filtered to obtain a coating composition.

The above-mentioned coatings were evaluated for drying rate and adhesion, and the results are as follows:

Dryness evaluation method: After printing the printed matter of each paint, let it stand for 1 hour, then paste the covering paper tape and apply pressure, uncover the paper tape, measure the amount of paint transfer on the paper tape, and divide the evaluation into 3 levels:

Good: Almost no paint transferred to the tape; Fair: Only a small amount of paint transferred to the tape locally;

Poor: Multiple and large amounts of paint transferred to the paper tape.

Claims (2)

1. the wear-resisting printing coating for textile fabrics of rapid-curing cutback, it is characterised in that be made up of the raw material of following parts by weight:

N-[2-(2-methyl-4-oxopentyl) 10 parts

Alkyd resin 15 parts

Acrylic resin 20 parts

Levelling agent 1 part

Thickening agent 2 parts

Fatty alcohol-polyoxyethylene ether 0.5 part

Diluent 1.5 parts

Pigment 50 parts

SiO 2 powder 10 parts

Bentonite 3 parts

Alumina powder 10 parts

Lignin sulfonic acid 3 parts

Etherification starch 4 parts

Distilled water 40 parts；

The preparation of printing coating comprises the steps:

A) in terms of parts by weight, following component is weighed: 10 parts of N-[2-(2-methyl-4-oxopentyl)s, 15 parts of alkyd resin, 20 parts of acrylic acid trees Fat, 40 parts of distilled water, 1 part of levelling agent, 2 parts of thickening agents, 0.5 part of fatty alcohol-polyoxyethylene ether, 1.5 parts of diluent, add stirring In device, with the speed of 350 turns/min, it is sufficiently stirred for disperseing 30 minutes, treats each component mix homogeneously, prepare mixed liquor；

B) in terms of parts by weight, weigh 50 parts of pigment, 10 parts of SiO 2 powders, 3 parts of bentonite, 10 parts of alumina powders, mixing Uniformly, then feeding the mixture in the mixed liquor that step a) prepares, add the lignin sulfonic acid of 3 parts by weight, 4 parts of etherificates are formed sediment Powder, blender stirs 1 hour with the speed of 400 turns/min, more ground machine is fully ground, and is filtrated to get coating composition；

Described acrylic resin is adopted and is prepared with the following method:

In terms of parts by weight, take 20 parts of ethanol, 20 parts of propanol, 15 parts of isopropyl acetates, add after mix homogeneously in reactor, with The ramp of 5-10 DEG C/min, to 80 DEG C, is incubated 30min, is then sequentially added into 20 parts of ethyl acrylate, 10 parts of metering systems Acid, 15 parts of 2-(Acryloyloxy)ethanols, 2 parts of diacetone acrylamides, 1 part of azo dicyclohexyl formonitrile HCN, be uniformly mixed, constant temperature React 5 hours, be cooled to 30 DEG C, drip 1.5ml strong aqua ammonia, be stirred for 30min, obtain acrylic resin.

The wear-resisting printing coating for textile fabrics of rapid-curing cutback the most according to claim 1, it is characterised in that: described levelling agent is organic Silicon levelling agent.