Packaging paper production method

Abstract

The invention relates to a packaging paper production method. The packaging paper production method comprises the following steps of (1) mixing and kneading 50 parts by weight of poplar root bark, 40 parts by weight of cedar bark, 0.25 part by weight of sodium bicarbonate, 3 parts by weight of calcium carbonate and 3 parts by weight of ethanol solution of ethyl acetate for 2 hours; (2) adding distilled water of which the weight is three times of that of the processed raw materials in the processed raw materials, and stirring for one hour to obtain size A; (3) adding 8 parts by weight of modified starch and 0.2 part by weight of nano silver in the size A, and carrying out ultrasonic treatment; (4) carrying out heat preservation on the processed raw materials under 95 DEG C, and stirring during a heat preservation process; (5) pulping the processed raw materials; (6) molding the processed raw materials by using a die, drying, and obtaining packaging paper. The packaging paper production method disclosed by the invention is simple, the poplar root bark, the cedar bark and the modified starch are used as main raw materials, the prepared packaging paper can be naturally degraded and has no pollution on environment, the packaging paper per se is non-toxic, and an application range is wide.

Description

technical field [0001] The invention belongs to the field of papermaking, and in particular relates to a production method of wrapping paper. Background technique [0002] In view of the increasing environmental pressure of traditional plastic packaging materials, the development of degradable packaging materials has become the focus of current scientific and technological research. However, due to material and technical problems, the current degradable plastics still cannot be completely degraded, and the cost is high, so they have not yet been put into large-scale production and use. [0003] The packaging material obtained by making paper from natural materials is completely made of natural edible starch, which can be completely degraded and fundamentally solves the problem of environmental pollution. However, in papermaking, the wood part of trees is now mostly used for papermaking, while the roots and bark are less utilized, especially poplars with a faster growth rate...

AI Technical Summary

Problems solved by technology

However, in papermaking, the wood part of trees is now mostly used for papermaking, while the roots and bark are less utilized, especially poplars with a faster growth rate, which are rarely used. The reason is the quality of paper made from poplar roots. Poor, not easy to shape, poor tearing and tensile strength of paper