Preparation method of coating type far infrared radiation preservation packing paperboard

Abstract

The invention relates to a preparation method of a coating type far infrared radiation preservation packing paperboard. The preparation method is characterized by comprising the following technological steps of: (1) coating preparation: evenly blending far infrared ceramic powder, a binding agent and a dispersing agent according to the mass ratio of 1:(9-11):(7-8), standing for 20-25 minutes to obtain far infrared radiation paint; (2) coating: evenly coating the far infrared coating on the surface of corrugated lining paper according to the coating quantity of 850-950g / cm<2>, and controlling the coated surface to have no particulate protrusions or holes with the diameter larger than 1mm; and (3) drying the corrugated paper coated with the far infrared paint at 85-90 DEG C, and controlling the moisture of the corrugated paper obtained to be 11+ / -3%. Compared with the prior art, the preparation method has the advantages of being simple in procedures, and relatively low in manufacturing cost; a packaging container made is used for packaging fruits and vegetables, the cell activity can be effectively maintained to maintain the freshness of the fruits and vegetables. Shown by tests, compared with the common packaging carton under the same conditions, the far infrared packaging carton is good in fresh-keeping effect, and the rate of intact fruit can be improved by 20%-60%, so that strong market competence advantages can be achieved.

Description

technical field [0001] The invention relates to a material for making a packing box for fresh-keeping of fruits and vegetables, in particular to a preparation method of a coated far-infrared radiation fresh-keeping packing cardboard. Background technique [0002] As traditional packaging materials, paper and cardboard are still one of the important pillars of modern packaging materials. In China, paper packaging materials account for about 40% of the total packaging materials. From the perspective of development trends, the amount of paper packaging will increase. According to China Packaging Network, although the use of paper products in China is growing rapidly, the existing product structure and demand structure in the market are not compatible with it, mainly due to low quality and irrational variety structure. At present, the variety of paper and paperboard products in China is relatively small, less than half of the paper types that can be produced in developed countr...

AI Technical Summary

Problems solved by technology

However, the former has potential safety hazards because it is difficult to clean fruits and vegetables when they are eaten, and sometimes causes intestinal infections; while the corrugated boxes mentioned in the latter have not been widely promoted in the market due to the complexity of the process and high manufacturing costs. application

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