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Service > What is a screen printing ink

What is a screen printing ink

With the rapid development in recent years of screen printing technology, but also pushed the screen printing ink technology has been upgraded, including the different functions for different applications of screen printing inks, screen printing ink products appeared flourishing lively scene . Many ink manufacturers have put attention toward the screen printing ink market, has formed a highly competitive atmosphere, there is competition there is progress, there are more mature technology ink manufacturers began to develop a variety of special wire network printing inks to meet the printing needs of the new era.

First, the status screen printing inks

The rapid development of screen printing ink market, but also led to many problems, because each vendor's inks for screen printing ink, the different attitudes of environmental issues, the production of harmful health ink formulations, ingredients can not pollute the environment be effectively controlled. Currently screen printing solvent-based inks contain 50% to 60% of volatile ingredients, if desired deployment of ink viscosity diluents are counted, then dry at the time of printing, the ink comes out of the volatile components The total content of 70% to 80%. These volatile organic solvents on the environment adversely affect human health and there are certain dangers.

Second, the green screen printing ink is the trend

But with the release related to environmental print, increasing demands for environmentally friendly inks and related policies, I believe in the future of screen printing ink market, more businesses will move closer towards this direction. Water-based screen printing inks let us see the future of environmentally friendly screen printing inks, water-based inks referred to water-based inks, with traditional solvent-based inks sex ratio, solvent-free water-based ink has a non-toxic, tasteless, non-polluting characteristics, compliance with environmental requirements. Whether or other water-based ink screen printing inks, screen printing ink is the trend of environmental protection.

Third, the screen printing ink composition and the type of

Screen printing ink and other types of ink composition is no different, are a mixture of pigments, resins, solvents, additives grinding made.

Steam drying - a film by solvent evaporation of the ink adhesion methods.
Oxidation polymerization type - by oxidation of the ink adhesion of the film formation method.
Two liquid reaction type - the ink film forming method by a two-component adhesive chemical reaction.
UV curing type - by ultraviolet irradiation and chemical reactions cited l adhesion of the ink film forming method.

After different drying methods ink printing ink film can bring different gloss, different resistance (mechanical resistance, chemical resistance, weather resistance), using different drying equipment, resulting in different costs, and therefore the user must choose carefully.

2. Press the ink vehicle types can be divided into several types, but with different ink manufacturers have chosen different resins can be roughly divided into epoxy resins, polyurethanes, polyesters, vinyl, acrylic, rubber and so on. Only clear substrates of different materials, in order to use different types of ink resin, in order to avoid the adverse consequences of the wrong ink adhesion. Unclear material substrates, preferably by printing test after, before deciding on the choice of ink.

3. Different types of ink using a thinner its manufacturers to provide, mainly due to various diluents for a variety of different types of ink resins have different solubility, in order to avoid adverse printing results.

Fifth, screen printing ink additives commonly used

1. The additives include defoamers, leveling agents, anti-friction agents, matting agents, should be appropriately added as manual, not the time, will result in the printing of the poor, poor gloss, drying too slow, adhesion loss and other adverse consequences .

2. curing agents, driers should add the exact proportions according to use, otherwise it will increase the ink crust, resulting in poor adhesion effect.

3. varnish usually used gold, silver ink production, increased ink film transparency, improve gloss ink film, ink film cover and so on, adding varnish, it should be appropriate to prevent the addition of a suitable diluent proportion of adverse printing results.

Fourth, the screen printing ink brands

In the four printing process as we know it (both: lithographic, gravure, letterpress printing, stencil printing) which, stencil printing screen printing method to get a very wide range of applications. Screen printing is currently pushing to get a wide range of applications mainly because of its unique printing advantages. This printing method has strong adaptability, solid ink, stereoscopic, along with light and strong, bright color and printing area big advantage. Screen printing, but also because a wide range of applications, in addition to water and air outside (including other liquids and gases), and any object can be used as a substrate. It is equipped with so many advantages, screen printing, which has become an integral part of human life.

Screen printing technology is not well developed, silk screen printing process for essential materials - silk screen printing inks played a catalytic role in order to meet the needs of a wide variety of printing ink manufacturers with a time into the continuous development production for the application of different printing materials, adapts to different printing methods, using different printing effects of screen printing inks. So far very much derived screen printing ink brand. Understanding the characteristics and properties of various brands of screen printing inks, help us choose the right printing inks.

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