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Composite base paper and production method thereof

A production method and paper technology, which are applied in pulp beating methods, paper making, paper making machines, etc., can solve the problems of high production cost, inability to use calcium carbonate fillers, etc., improve retention rate, improve physical strength and product performance, reduce The effect of pollution

Inactive Publication Date: 2011-07-20
YUANJIANG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production method of aluminum foil composite base paper disclosed in this document uses coniferous wood pulp, and the production cost is high; due to the use of acid sizing, calcium carbonate filler cannot be used; There are also differences in the products and uses claimed in this patent application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The reed pulp is produced by kraft cooking, oxygen delignification and chlorine dioxide bleaching production processes, and the whiteness is 78% ISO, and the tear index is 8.5mN m 2 / g, bleached sulfate reed pulp with a percussion degree of 19°SR and a wet weight of 4.5g, beat the reed pulp to 34°SR, whiteness 77%ISO, tear index 7mN m 2 / g of bleached kraft poplar wood pulp is beaten to a degree of percussion of 35°SR, a wet weight of 4.5g; a brightness of 92%ISO, and a tear index of 25mN m 2 / g of bleached kraft softwood wood pulp, beating to 35°SR with a wet weight of 12g. After beating, the weight ratio of bleached kraft reed pulp: bleached kraft poplar pulp: bleached kraft softwood pulp is 85:10:5, and 190kg of filler is added to each ton of paper according to the weight of paper. Alkene dimer (AKD) 10kg, cationic starch 10kg, fluorescent whitening agent 5kg, direct blue, direct violet 1: 1 mixed dye 400g by weight, polyacrylamide 250g, diatomite 2.5kg is made into...

Embodiment 2

[0028] The reed pulp is produced by kraft cooking, oxygen delignification and chlorine dioxide bleaching production processes, and the whiteness is 85% ISO, and the tear index is 8.0mN m 2 / g, bleached kraft reed pulp with a percussion degree of 20°SR and a wet weight of 4.4g, beating the bleached kraft reed pulp to 34°SR, whiteness of 74% ISO, and tear index of 11mN m 2 / g of bleached kraft poplar pulp is beaten to a degree of percussion of 37°SR, a wet weight of 4.2g; a brightness of 90%ISO, and a tear index of 30mN m 2 / g of bleached kraft softwood wood pulp, beating to 39°SR with a wet weight of 8g. After beating, the weight ratio of bleached kraft reed pulp: bleached kraft poplar pulp: bleached kraft coniferous wood pulp is 80:10:10, and 160kg of filler is added to each ton of paper according to the weight of the paper. Alkyl ketene dimer (AKD) 12kg, cationic starch 9kg, fluorescent whitening agent 4kg, direct blue, direct violet mixed dye 600g by weight 6: 4, polyacrylam...

Embodiment 3

[0030] The reed pulp is produced by kraft cooking, oxygen delignification and chlorine dioxide bleaching production processes, and the whiteness is 81% ISO, and the tear index is 9.4mN m 2 / g, bleaching kraft reed pulp with a beating degree of 18°SR and a wet weight of 4.8g, beating the bleached kraft reed pulp to 38°SR, whiteness 75% ISO, and tear index 9mN m 2 / g of bleached poplar pulp is beaten to a percussion degree of 34°SR, a wet weight of 4.5g; a brightness of 85% ISO, and a tear index of 30mN m 2 / g of bleached kraft softwood wood pulp, beating to 35°SR with a wet weight of 12g. After beating, the weight ratio of bleached kraft reed pulp: bleached kraft poplar pulp: bleached kraft softwood wood pulp is 80:15:5, and 200kg of filler is added to each ton of paper according to the weight of paper. Alkyl ketene dimer (AKD) 15kg, cationic starch 12kg, fluorescent whitening agent 6kg, direct blue, direct violet mixed dye 450g by weight 4: 6, polyacrylamide 300g, diatomite 2...

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Abstract

The present invention relates to composite base paper and a production method thereof. The whiteness of the composite base paper is not less than 88 percent; the longitudinal crake is not more than 4.2 Km; the transverse folding strength is not less than 18 times, the delamination force is not less than 1.4 N; the water absorption weight is between 20 and 25 g / m2; the water content is 5.5 to 6.5 percent; sizing agents are the following sizing agents in part by weight: 80 to 85 parts of reed pulp, 10 to 15 parts of poplar bleached pulp and 5 to 10 parts of bleached coniferous wood pulp; the three sizing agents are beaten respectively, mixed, subjected to blending, screening, squeezing, drying, surface film transfer sizing and calendaring and finishing by a soft roller to prepare the composite base paper. The production method is a clean pulping and papermaking production method with low energy consumption, low pollution and high physical strength of paper; and the obtained composite base paper has the advantages of good strength, low manufacturing cost, high delamination force of products and the like and can meet the use requirements.

Description

technical field [0001] The invention relates to an industrial technical paper, in particular to a composite base paper. The invention also relates to the production method of the composite base paper, especially the production method of using reed pulp to make the composite base paper. Background technique [0002] At present, paper-based composite materials have been developed rapidly and have been applied in many industries. Composite base paper is one of the main products that paper-making enterprises pay attention to and develop. Composite base paper is widely used in advertising, tape, packaging and other fields after being processed with other materials on both sides or one side, laminating, coating, silicon coating, etc. [0003] The name of the applicant's application is "A Straw Pulp Bleaching Process" for an invention patent, the application number is 200810143894.4, and the application date is December 8, 2008. Elemental chlorine-free bleaching agents such as hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/68D21F11/00D21H11/04D21G1/00D21D1/02
Inventor 贺建州张清高崔健喻益伟周兵冷玄向伯文胡彩维
Owner YUANJIANG PAPER
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