Household paper and its preparation method

Abstract

A kind of household paper comprises at least one layer of single-layer paper, the single-layer paper is composed of three or more fiber layers stacked in layers, and at least one layer of the three and more fiber layers is filled with high-density fiber layers. At least one fiber layer formed by pulp slurry is formed by short fiber pulp, and at least one layer is formed by long fiber pulp. The present invention also provides the preparation method of the above-mentioned household paper. The fibrous layer formed from long fiber pulp provides tough properties; the fibrous layer formed from short fiber pulp provides soft characteristics; the filled fiber layer formed from high yield pulp provides surface Smooth properties; in addition, the filler improves the overall brightness of the high-yield pulp fiber layer, while the fine filler particles are filled between the high-yield pulp fibers, increasing the surface smoothness of the high-yield pulp fiber layer. Therefore, the household paper of the present invention also ensures the characteristic requirements of various aspects of the household paper on the basis of using the high-yield pulp added.

Description

technical field [0001] The invention relates to a living paper and a preparation method thereof. Background technique [0002] Household paper is a necessity in people's daily life, including napkins on the dining table, facial tissues in the living room, roll toilet paper in the bathroom, paper towels, and paper towels in the kitchen. At present, most household paper products are made from bleached chemical pulp. However, the yield of chemical pulp produced by the prior art is low (generally 40%-60%), which is not conducive to saving wood resources. In order to better save wood resources and reduce costs, the current method is to replace chemical pulp with high yield. High-yield pulp is usually pulp made from plant fiber raw materials through mechanical methods or a combination of chemical and mechanical methods. Since the non-cellulose components in the original wood material are retained, the yield of high-yield pulp Between 65%-95%. [0003] However, the paper made f...

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Problems solved by technology

[0003] However, the paper made from high-yield pulp also has the following defects: (1) Since high-yield pulp retains a large amount of lignin, the purpose of the bleaching process is to transform lignin rather than remove it, so it contains high-yield bleaching The paper whiteness of pulp is lower than that of paper made from 100% bleached chemical pulp, and the paper made from high-yield pulp still has the phenomenon of yellowing under the action of light and heat, which affects the quality of household paper used in the process of use. (2) The special pulping method causes the fibers in the high-yield pulp to be shorter and thicker than those in the chemical pulp, and there are more fine fibers and fiber fragments in the pulp than in the chemical pulp , based on the characteristics of fibers in high-yield pulp, tissue paper made from high-yield pulp has low strength and rough surface feel

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