Thin natural color food wrapping paper and preparation method thereof

Abstract

The invention relates to thin natural color food wrapping paper and a preparation method of the thin natural color food wrapping paper, belonging to the field of food wrapping paper in the papermaking industry. The thin natural color food wrapping paper is 18-55% in brightness and 16-25g / m<2> in ration; and the pulp for preparing the thin natural color food wrapping paper is prepared from 20-30% of wood pulp and 70-80% of unbleached straw pulp, preferentially, the pulp is prepared from 22-28% of wood pulp and 72-78% of unbleached straw pulp, and the beating degree of the unbleached straw pulp is 38-53 degrees SR; and an oil-proofing agent is added in the pulp for preparing the thin natural color food wrapping paper. According to the thin natural color food wrapping paper and the preparation method of the thin natural color food wrapping paper, the unbleached straw pulp with low beating degree is mainly adopted for papermaking, a technical prejudice that the straw pulp is required to have high beating degree for preparing the thin wrapping paper can be overcome, the prepared paper has high strength, is low in cost, is environment-friendly and does not contain toxic substances, and the preparation method can solve the problem that the straw pulp is difficult to be prepared into the thin natural color food wrapping paper.

Description

technical field [0001] The invention relates to a thin unbleached food wrapping paper, which belongs to the field of food wrapping paper in the papermaking industry, in particular to a thin unbleached food wrapping paper produced by using wood pulp and unbleached pulp and a preparation method thereof. Background technique [0002] Food wrapping paper is a paper packaging material for directly imported foods such as candies, popsicles, and pastries. Food packaging paper plays an irreplaceable role in protecting food, preventing food from being contaminated by external microorganisms or other substances, and preventing or reducing food oxidation and other reactions. Food packaging paper is indispensable to human life. With the rapid growth of the national economy and the continuous improvement of the quality of life, the field of food packaging paper in my country has developed rapidly. In order to make full use of natural resources and reduce the cost of postage and transpor...

AI Technical Summary

Problems solved by technology

[0011] However, the high beating degree of pulp has the following problems: first, increasing the beating degree of straw pulp will lead to prolonged beating time, increased power consumption, and reduced production capacity; Squeeze rollers and sticky cylinders will cause paper sheets to break and increase paper defects, which directly affect the speed and productivity of the paper machine; thirdly, due to the shearing action of the roller knife and bottom knife of the beating equipment, increasing the beating degree will lead to Straw pulp fibers are excessively cut, which greatly reduces the strength of the paper, especially the tearing degree

More do not find the preparation method of the thin food wrapping paper that adopts the unbleached straw pulp of lower degree of beating and wood pulp to prepare