Making process of leather-like paper with high wet strength

Abstract

The invention relates to the papermaking field and aims to provide a making process of leather-like paper with high wet strength. The process comprise the following steps: firstly, selecting 30-80 percent by mass of long fiber paper pulp and 20-70 percent by mass of softwood pulp to prepare into mixed paper pulp; then, adding 1-1.5 percent of wet-strength agent relative to the fiber quantity to the paper pulp, wherein the wet-strength agent is any one of PPE (Poly-Phenylene Ether)) and melamine or urea-formaldehyde resin; adding 10-30 percent of latex relative to the fiber quantity to the paper pulp, wherein the latex is any one of silicon oxide, carboxylic styrene-butadiene latex, styrene-acrylic emulsion, water-based polyurethane emulsion and acrylic emulsion; pulping the paper pulp, papermaking by using a round mesh, long mesh or inclined mesh machine, drying and coating; and finally, drying, coiling and forming. The leather-like paper with high wet strength has the advantages of high strength, water absorption, soft paper, leather-like quality and capability of printing characters and patterns, thereby being suitable for high-grade paper capable of printing jean marks, hanging marks, leather marks, name cards, and the like.

Description

technical field [0001] The invention relates to the field of paper production, in particular to a production process of high wet strength imitation leather paper. Background technique [0002] High humidity strength imitation leather paper, commonly known as washable kraft paper, is a high-strength, printable special paper. Its texture is tough and water-resistant, so it is widely used as packaging materials in daily life. With the increasing demands of people's life, especially in the modern industrialized production of clothing, it is necessary to carry the label name of the clothing, and these labels come in various forms, including paper, cloth, cloth leather, artificial leather, non-woven Cloth, synthetic paper, etc. For labels that need to be integrated with the garment, especially for denim clothing lines, what is needed is a form of label that is more washable. This is because the denim clothing needs to be stonewashed after sewing, which requires that the labels on...

AI Technical Summary

Problems solved by technology

This is because the denim clothing needs to be stonewashed after sewing, which requires that the labels on the clothes not only be wear-resistant but also maintain sufficient wet strength during the stonewashing process; During the stone washing process, the clothes need to be heated, sanded and turned continuously. The signs and clothes have to bear a lot of friction and water rubbing together. Therefore, the paper used must have sufficient toughness and strength in a wet state. Now Ordinary kraft cardboard is difficult to meet this requirement

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