Water-resistant soybean protein trademark glue for wine bottle labeling and preparation method thereof

Abstract

The invention provides water-proofing soy protein trademark glue for liquor drink bottle trademark pasting and a preparing method of the water-proofing soy protein trademark glue. Soy protein is used for replacing casein, the problem of resource shortage is solved, and the preparing cost of the trademark glue is reduced. Other auxiliary raw materials are adopted, and the initial pasting performance, the water resistance and the fluidity of the trademark glue are improved. The water-proofing soy protein trademark glue comprises, by weight, 5-6 % of soy protein, 20-25% of urea, 2-3% of modified corn starch, 0.2-0.4% of antifoaming agent, 25-28% of modified acrylic emulsion, 0.5-0.8% of caustic soda flake, 1.8-2.5% of water repellent agent, 0.11-0.15% of cross-linking agent and 30-50% of water. The water-proofing soy protein trademark glue has the advantages of being fast in drying, resistant to water, free of mildew, good in initial pasting performance, free of toxin and smells, low in cost and the like. The physicochemical indexes of the water-proofing soy protein trademark glue are superior to the physicochemical indexes of products of the same kind at home and abroad. The water-proofing soy protein trademark glue is suitable for domestic and imported trademark pasting machines. The water-proofing soy protein trademark glue for liquor drink bottle trademark pasting and the preparing method of the water-proofing soy protein trademark glue are suitable for trademark pasting of aluminum foil and copper plate paper labels of beer bottles or beverage bottles or other glass bottles in the industries of beverages and food, have a large trademark pasting application range and are suitable for trademark pasting machines for conducting trademark pasting on 20,000-60,000 bottles per hour.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a water-resistant soybean protein trademark glue for labeling wine drinking bottles and a preparation method thereof. Background technique [0002] At present, most of the water-resistant trademark glues used in labeling machines in the domestic beer and beverage industry use casein as the main raw material. The production of casein in my country is insufficient, and it is obviously affected by seasons, so most of them rely on imports. Along with the yearly increase of product price, the cost of the trademark glue made with it is increasing day by day. [0003] The invention patent with the patent application number 2012103728990 discloses a high-speed beer trademark glue and its preparation method, specifically disclosing a trademark glue composed of polyvinyl alcohol, water, starch plus water, formaldehyde, urea, caustic soda, and hydrochloric acid. Although tradem...

AI Technical Summary

Problems solved by technology

[0003] The invention patent with the patent application number 2012103728990 discloses a high-speed beer trademark glue and its preparation method, specifically disclosing a trademark glue composed of polyvinyl alcohol, water, starch plus water, formaldehyde, urea, caustic soda, and hydrochloric acid. Although the trademark glue has good adhesion effect, beautiful appearance, simple formula and strong practicability, it has the following disadvantages: 1. There is formaldehyde in the formula, so the product is not environmentally friendly; 2. The product produced according to its formula has no water resistance and cannot meet the actual needs

[0004] The invention patent with the patent application number 201310714035.7 discloses a preparation method of water-resistant polyvinyl alcohol trademark glue. By forming a stable six-membered ring metal ion complex with the hydroxyl group in the polyvinyl alcohol molecular chain and aluminum sulfate, the Water resistance, aluminum sulfate itself can be used as an inorganic crosslinking agent, which can increase the viscosity of the glue, ensure the bonding performance of the trademark glue, and significantly improve the water resistance of the trademark glue, but this kind of trademark glue has the following disadvantages: 1 1. The trademark glue made of polyvinyl alcohol can only be used in the production and use of 18,000-40,000 bottles / hour low and medium-speed labeling machines, and cannot meet 40,000-60,000 bottles / hour, and labeling machines with a line speed of 60,000 bottles / hour or more Production and use; 2. The water-resistant trademark glue made of polyvinyl alcohol and cross-linking agent has poor water-resistant stability and cannot meet the requirements of product quality for 6 months