Lightweight stone paper

Abstract

The invention discloses lightweight stone paper and relates to synthetic paper. The lightweight stone paper is composed of a base paper layer and a coating layer; the coating layer is coated on the base paper layer; the base paper layer consists of the following components by weight part: 15-30 parts of synthetic resin and 70-85 parts of mixed materials. The synthetic resin is polylactic acid, or EVA (ethylene vinyl acetate), or PP (polypropylene) or PE (polyethylene) or combination of any two of polylactic acid, EVA, PP or PE; the mixed material is sawdust, or bamboo chips or combination of sawdust and bamboo chips; the ingredient of the coating layer comprises the following ingredients by weight part: 20-40 parts of acrylic resin, 20-40 parts of lithopone and 30-50 parts of deionized water. The lightweight stone paper has the beneficial effects that the mixed material is light in weight and good in dispersibility because the mixed material is sawdust, or bamboo chips or the combination of the saw dust and the bamboo chips, and the lithopone has good covering property, thereby conveniently reducing the weight of the paper, improving the quality of the paper and reducing the manufacture cost.

Description

technical field [0001] The present invention relates to stone paper, especially a light weight stone paper. Background technique [0002] The demand and consumption of paper products are constantly increasing, which is related to the progress of social civilization and the continuous improvement of human living standards. The traditional papermaking technology has at least the following deficiencies: 1. The main raw material for papermaking is wood pulp made from trees. The papermaking industry consumes a lot of valuable forest resources, which is an important factor leading to the imbalance of the earth's ecology. 2. The paper industry also consumes a lot of water and energy. 3. Most of the production of various papers is produced by wet method. A series of chemical and physical methods are used to produce pulp, which discharges a large amount of acid and alkali waste liquid, pollutes the soil and water, and destroys the environment on which human beings depend. and threa...

AI Technical Summary

Problems solved by technology

Traditional papermaking technology has at least the following deficiencies: 1. The main raw material for papermaking is wood pulp made from trees. The papermaking industry consumes a lot of valuable forest resources, which is an important factor leading to the imbalance of the earth's ecology

2. The paper industry also consumes a lot of water and energy

3. Most of the production of various papers is produced by wet method. A series of chemical and physical methods are used to produce pulp, which discharges a large amount of acid and alkali waste liquid, pollutes the soil and water, and destroys the environment on which human beings depend. and threats, while the up-to-standard treatment of acid and alkali waste liquid requires a lot of investment, and the treatment is difficult, resulting in increased production costs

4. The production method is complex and the equipment investment is large

However, currently produced stone paper is heavier than traditional paper, thus limiting the application of stone paper