Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof
A technology for fresh-keeping of fruits and vegetables and fresh-keeping paper, applied in chemical instruments and methods, paper, papermaking, etc., can solve the problems of single release mode, narrow application range, and few types of active ingredients of fresh-keeping agents, so as to increase economic benefits and high application value , the effect of broad application prospects
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[0029] A dual controllable release fruit and vegetable fresh-keeping paper is composed of three-layer paper-plastic composite material or two-layer paper-plastic composite material, a layer of base paper and two different controllable release preservatives. Different antistaling agents are respectively placed in the middle of two sandwich layers formed by three-layer paper-plastic composite material or two-layer paper-plastic composite material and one layer of base paper. The preservative is distributed in a discontinuous grid in the interlayer.
[0030] It is made of three-layer paper-plastic composite material with two kinds of preservatives or two-layer paper-plastic composite material and one layer of base paper with two kinds of preservatives, which are processed by thermal synthesis. Among them, the paper-plastic composite material is from 18-55g / m 2 Candy paper and 10-25g / m 2 Polyethylene is compounded by casting. Base paper 28-60g / m 2 Candy paper or kraft paper. The effec...
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