Environment-friendly type aqueous aluminum foil protecting agent and preparation thereof

Abstract

The invention relates to an environmental-friendly waterborne aluminum foil protective agent and a prepration method thereof, wherein, the protective agent comprises the following components according to the formula by weight: 45 percent to 70 percent main resin; 0 percent to 20 percent assisted resin; 10 percent to 50 percent water; 0 percent to 35 percent cosolvent; 0 percent to 0.5 percent film-forming auxiliary agent; 0 percent to 0.5 percent leveling agent; 0 percent to 0.5 percent defoamer; 0 percent to 2 percent anti-abrasion agent; and 0 percent to 0.5 percent pH regulator. Compared with the prior art, the environmental-friendly waterborne aluminum foil protective agent and the prepration method have the advantages: (1) the aluminum foil protective agent contains no organic solvent which is harmful to human body and has very low content of VOC, and water and ethanol are used for dilution during the using process, thereby being non-toxic and low in production cost; (2) the aluminum foil protective agent has good adhesion, good transparency, high smoothness and high thermal resistance performance; (3) the aluminum foil protective agent belongs to the general purpose products, and the range of application is broad; and (4) the production process is reasonable, the operation is simple and the production efficiency is high.

Description

technical field [0001] The invention relates to a printing coating for medicine packaging, in particular to an environment-friendly water-based aluminum foil protective agent and a preparation method thereof. Background technique [0002] Aluminum foil protective agent for pharmaceutical packaging and printing is also called varnish and OP protective agent. It has the function of protecting the printing layer and preventing the oxidation of the aluminum foil surface. During the production process, it can also prevent the possibility of pollution caused by the contact between the outer layer ink and the inner layer adhesive during winding. [0003] Most of the aluminum foil protective agents currently used are solvent-based. In addition to the product itself containing a large amount of organic solvents that are harmful to the human body, it also needs to be diluted with organic solvents such as ethyl ester or methyl ethyl ketone. The production process is accompanied by a la...

AI Technical Summary

Problems solved by technology

[0003] Most of the aluminum foil protective agents currently used are solvent-based. In addition to the product itself containing a large amount of organic solvents that are harmful to the human body, it also needs to be diluted with organic solvents such as ethyl ester or methyl ethyl ketone. The production process is accompanied by a large amount of organic solvents. Volatile substances are harmful to human health and environmental protection, and there are also certain fire hazards

In addition, the finished product also contains a large amount of solvent residue (VOC), which is harmful to human health