Aqueous aluminum-washing matte printing ink and preparation method thereof

Abstract

The invention discloses an aqueous aluminum-washing matte printing ink. The aqueous aluminum-washing matte printing ink is prepared from the following raw materials in parts by weight: 10 to 20 parts of de-ionized water and ethanol mixed solvent, 6 to 13 parts of light calcium carbonate or hydration-grade kaolin, 40 to 50 parts of a PVPK30 solution, 22 to 32 parts of a PVPK90 solution, 0.3 to 0.5 parts of aqueous organic silicon wet flatting agent and 1.5 to 2 parts of heat-resisting auxiliary agent solution. The aqueous aluminum-washing matte printing ink is mixed colloidal fluid prepared from complete aqueous film-forming main resin, de-ionized water, a small quantity of the ethanol mixed solvent, light calcium carbonate, the aqueous wet flatting agent and the aqueous special heat-resisting auxiliary agent through the steps of pre-dispersing the materials, sanding and adjusting, and has the characteristics of relatively good film forming property, high-temperature resistance, good water solubility, easiness of cleanly washing an aluminum layer and the like.

Description

technical field [0001] The invention belongs to the technical field of printing inks, and in particular relates to a water-based aluminum-washed matte ink and a preparation method thereof. Background technique [0002] With the continuous innovation and development of the flexible packaging market, a new type of packaging-aluminum-washed packaging has emerged as the times require. This type of packaging is currently one of the packaging with the highest printing requirements, the most exquisite design effect, and the highest grade in China and even the world. It is widely used in The outer packaging of food, cigarette packs, gifts, household chemicals, electronics, medicine, cosmetics and other fields is widely used in the world, and a small number of large-scale color printing enterprises in China have applied this new production line. [0003] The so-called aluminum-washed packaging, the process is to carry out full-plate aluminum plating on the printed color film, and the...

AI Technical Summary

Problems solved by technology

[0008] (2) It can only be washed with water, not suitable for the existing advanced water washing aluminum device

[0009] (3) The water-soluble resin does not match the colored body. During high-speed printing, the ink will be displaced due to static electricity. After the aluminum is washed, the aluminum layer that should have been retained is washed away, resulting in production scrap

[0010] (4) Because the preparation method is not refined, the ink particles produced are rough, which will make the printing film layer thin or uneven or produce printing knife lines. During aluminum plating, the affinity between aluminum vapor and the film with the above three phenomena is particularly Well, when washing aluminum, the aluminum layer at that part is not easy to peel off from the film, resulting in incomplete washing and scrapping

[0011] (5) It can only be printed in the blank area. If there is ink (such as a hollowed-out blank), that is, after printing on a colorless ink film with water-washed aluminum high-temperature protection, it has a good affinity with it, and it will also lead to endless washing of aluminum. generate scrap

[0012] (6) It is greatly affected by the depth of the printing plate, the plate is shallow, the ink layer is thin, the high temperature barrier effect is not good during aluminum plating, and the printing pattern is affected; if the plate is too deep, the printing cost is too high, and it is easy to cause uneven film layer

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