Skin core fiber composite paper new material

Abstract

The invention relates to a skin core fiber composite paper new material which is obtained by compounding skin core structure fiber and paper, a skin material of the skin core structure fiber is a low melting point heat-sealable polymer material, the melting point of the skin material is 52 to 180 DEG C, the melting point of a core material is higher than the melting point of the skin layer material, the tensile and the tear strength of the finally-prepared skin core fiber composite paper new material are high, and the skin core fiber composite paper new material has excellent economic value and popularization value. The skin core fiber composite paper new material is obtained by compounding reinforced fiber with paper surface, has the advantages of little material consumption, low cost and low requirements on materials of the paper before the compounding, at the same time an adhesive can play an adhesive role by hot pressing, and overcomes the problems of use inconvenience, high cost and easy production of toxic and harmful substances in traditional adhesives.

Description

technical field [0001] The invention belongs to the field of papermaking and relates to a new material of sheath-core fiber composite paper. Background technique [0002] The strength of paper refers to the resistance of the paper industry to various mechanical forces, generally including transverse / longitudinal tensile strength, tear strength and bending strength, etc. It is one of the important indicators to measure the performance of paper. The paper industry is one of the important industries in my country. In recent years, with the rapid development of my country's paper industry, people's demand for high-grade paper products has increased significantly, and the improvement of paper strength has become more and more important. [0003] In order to meet people's demand for high-strength paper, researchers have done a lot of research. For example, the patent CN105696409A uses sulfuric acid to pretreat the calcium silicate filler, adds the treated filler to the plant fibe...

AI Technical Summary

Problems solved by technology

However, the amount of coating materials in the above-mentioned coated paper is large, which is easy to cause waste of resources. The composite paper obtained by coating cannot be used as a product with air permeability requirements. When the surface roughness of the paper is large, the unevenness of the paper surface makes the The coating process is prone to leaks, which affect the overall performance of the composite paper obtained by coating. In addition, the adhesives commonly used in coating often produce toxic and harmful gas emissions, which have adverse effects on the environment.