Gravure ink binder is a kind of adhesive resin, which is the chain component of ink. It can bond pigment and printing material together, and make ink glossy. Pigments determine the kind of color. Solvent dissolves resin, adjust viscosity, adjust drying speed, improve the wettability of printing materials. The additives can improve the viscosity, weather resistance, aging resistance and luster. This paper briefly analyzes the difference between the inside printing ink and the surface printing ink.
The main difference between the high-temperature printing ink and chlorinated resin is that it is not suitable for high-temperature printing—— Vinyl acetate copolymer resin. 2. The difference of solvents used in surface printing ink is mainly xylene, isopropanol. In general, toluene and ethyl acetate are the main solvents for inking. High temperature cooking ink is mainly ethyl acetate, ethyl acetate and so on. Printing ink solvent suitable for high-speed printing, solvent volatility is fast, solvent residue is particularly small. At present, environmental friendly inks are all diluted with ester and alcohol solvents. Benzene inks have been eliminated constantly, which is harmful to the health of workers and products and environmental protection. Dongchang group has always recommended environmental friendly inks. 3. The difference of wear resistance is due to the good softness and elasticity of polyamide resin. The additive can improve the wear resistance and make it collide with the external objects firmly. Inside printing ink resin chlorinated polypropylene resin rigidity is particularly good, wear resistance is poor, due to the printing, the wear resistance requirements are correspondingly lower. 4. The difference of excipients between the surface printing ink and the inner printing ink due to the different connection, the auxiliary materials, additives and additives are also different. Dehydrated apple and kiwi fruit ester are often added to the surface printing ink to improve the adhesion, luster and viscosity. Inside printing ink also adds all kinds of pigment dispersant, enhancer, defoamer and other auxiliaries. 5. The difference of printing technology is that the printing plate process is exactly the same as the general plate making process, but when the surface printing plate making, the image on the plate is the reverse image, after printing is the positive image, the image of the inside plate is positive image, and the image is reverse image after printing. The printing speed of surface printing ink is slow, and the printing speed of inner printing ink is faster than that of surface printing. Printing color sequence is also different.
Dongguan Beite packaging materials Co., Ltd. - located in Dongguan City, the world's manufacturing city, is a subsidiary of Beite packaging (China) Co., Ltd., with a plant area of 6000 square meters. It is a flexible packaging enterprise integrating R & D, production and sales. It has a complete set of domestic advanced production equipment, a scientific and humanized management system and a group of experienced technical personnel For backing, to provide customers with quality products and first-class service.
The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for the internal and external packaging of food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products and other industries.
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