Application of defoamers in ink and water

Application of defoamers in ink and water

As an important material in traditional Chinese painting and modern printing technology, the performance and stability of ink and water directly affect the quality of the work and the printing effect. However, during the use of ink and water, especially during its modulation, application and drying, foams are often generated, which not only affects the fluidity, permeability and stability of the ink and water, but also may reduce the final quality of the work. In order to solve this problem, defoamers are widely used in ink and water.

1. Definition and classification of defoamers

Defoamers are chemical additives specially used to eliminate or inhibit the generation of foam in liquids. According to the different chemical composition and defoaming mechanism, defoamers are mainly divided into polyether block defoamers, silicone defoamers and composite defoamers. These defoamers have their own characteristics and are suitable for different ink and water systems and application scenarios.

2. The mechanism of action of defoamers in ink and water

Improving fluidity: Foam in ink and water will hinder the flow of ink and water, making the painting or printing process difficult. Defoamers can destroy the foam structure, reduce the viscosity of ink, and make it easier to flow on paper or printed materials, thereby improving the smoothness and uniformity of painting or printing.

Enhance permeability: The permeability of ink is one of the key factors affecting the effect of painting or printing. Defoamers can improve the permeability of ink, making it easier to penetrate into the fibers of paper or printed materials, thereby improving the saturation and layering of colors.

Improve stability: During long-term use or storage, ink is prone to problems such as uneven color and precipitation due to various factors (such as temperature, humidity, stirring, etc.). Defoamers can stabilize the ink system, reduce the possibility of color change and precipitation, and enable the ink to maintain stable quality during long-term use.

Eliminate foam: The main function of the defoamer is to reduce the stability of the foam film by adsorbing on it, thereby causing it to break. At the same time, the defoamer can also form a protective film in the ink system to prevent air from entering the ink again to form new foam.

3. Specific application of defoamers in ink and wash

Traditional ink painting: In traditional ink and wash painting, defoamers can effectively reduce the viscosity of ink and improve its fluidity, making the painting smoother and more natural. At the same time, defoamers can also enhance the permeability of ink and wash, making the color of the painting fuller and more layered.

Printing industry: In the printing industry, water-based inks are widely used in the production of various printed products. However, foam problems often plague the printing process. The addition of defoamers can effectively eliminate foam, improve the fluidity and stability of ink, and thus ensure the clarity and quality of printed products.

Other applications: In addition to traditional ink painting and printing industries, defoamers are also widely used in ink systems in other fields, such as ink coatings, ink dyeing, etc. In these fields, defoamers also play an important role in helping to improve product quality and production efficiency.

4. Environmental protection and safety of defoamers

With the increasing awareness of environmental protection, people have also put forward higher requirements for the environmental protection and safety of defoamers. Modern defoamers are usually made of natural plant extracts or non-toxic and harmless chemical raw materials, which are harmless to the human body and the environment. At the same time, defoamers will not produce volatilization of harmful substances during use, and have no negative impact on human health and indoor air quality.

5. Summary

In summary, the application of defoamers in ink has a wide and important role. It can not only improve the fluidity of ink, enhance permeability, and improve stability, but also effectively eliminate foam and improve the quality and efficiency of painting or printing. At the same time, modern defoamers also have good environmental protection and safety, which meets the requirements of modern people for environmental protection and health. Therefore, in the ink painting and printing industry, the application prospects of defoamers are very broad.