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Flame-retardant body paper and production method thereof

A production method and technology of flame retardant liquid, applied in the field of papermaking, can solve the problem of high production cost

Active Publication Date: 2014-01-22
ZHEJIANG XINDU PAPER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the flame-retardant paper currently used in the market is flame-retardant kraft cardboard, and the production cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of flame-retardant base paper provided in this embodiment is pulping, beating, pulping, primary forming and dehydration of waste paper to obtain primary forming paper;

[0015] After the dehydration step, the following steps are further included:

[0016] Soak the primary molding paper with flame retardant solution;

[0017] The primary molding paper soaked in flame retardant liquid is produced into base paper.

[0018] The preparation method of flame retardant liquid comprises the following steps:

[0019] A. The mixture of starch and water with a mass ratio of 5-8:100 is kept at 80-90° C. for 10-30 minutes to gelatinize to obtain starch gelatinization;

[0020] B. Boric acid and guanidine sulfamate are added to the starch gelatinized product in a mass ratio of 3.5-4.5:5.5-6.5, and the ratio of the total mass of boric acid and guanidine sulfamate to the starch gelatinized product quality is 8-15 :100, stir evenly to obtain a flame retardant solution. The pro...

Embodiment 2

[0023] A kind of flame-retardant base paper provided in this embodiment is pulping, beating, pulping, primary forming and dehydration of waste paper to obtain primary forming paper;

[0024] After the dehydration step, the following steps are further included:

[0025] Soak the primary molding paper with flame retardant solution;

[0026] The primary molding paper soaked in flame retardant liquid is produced into base paper.

[0027] The preparation method of flame retardant liquid comprises the following steps:

[0028] A. The mixture of starch and water with a mass ratio of 5-8:100 is kept at 80-90° C. for 10-30 minutes to gelatinize to obtain starch gelatinization;

[0029] B. Boric acid and guanidine sulfamate are added to the starch gelatinized product in a mass ratio of 3.5-4.5:5.5-6.5, and the ratio of the total mass of boric acid and guanidine sulfamate to the starch gelatinized product quality is 8-15 :100, stir evenly to obtain a flame retardant solution.

[0030...

Embodiment 3

[0040] The flame retardant base paper provided in this example is produced on a paper machine, and the waste paper is pulped, beaten, adjusted, formed and dehydrated to obtain a primary forming paper; the primary forming paper is immersed in the surface containing the flame retardant liquid The sizing tank is soaked; the primary molding paper soaked in the flame retardant liquid is produced into base paper.

[0041] The preparation method of flame retardant liquid comprises the following steps:

[0042] A. Put 150kg of starch and 2000kg of water into the mixing tank, stir evenly, pass in steam and keep the temperature at 85°C for 20min without stopping stirring to obtain starch gelatinization;

[0043] B. Add 80kg of boric acid and 120kg of guanidine sulfamate to the starch gelatin and stir evenly to obtain a flame retardant solution.

[0044] The quantitative obtained by the above method is 120g / m 2 The horizontal ring pressure index of the base paper is 7.8, and the streng...

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Abstract

The invention relates to the technical field of paper making, in particular to flame-retardant body paper and a production method of the flame-retardant body paper. Repulping, pulping, pulp mixing, one-time forming and dehydration are carried out on waste paper to obtain one-time formed paper. The one-time formed paper is soaked with flame-retardant liquid. The one-time formed paper soaked with the flame-retardant liquid is produced into the body paper. A method for preparing the flame-retardant liquid comprises the steps that mixtures with the mass ratio of starch to water of 5-8:100 are kept to be pasted for 10-30 minutes at 80-90 DEG C to obtain a starch pasting object; boric acid and guanidine sulfamate are added to the starch pasting object with the mass ratio of 3.5-4.5:5.5-6.5, the ratio of the total mass of the boric acid and the guanidine sulfamate to the mass of the starch pasting object is 8-15:100, the boric acid, the guanidine sulfamate and the starch pasting object are evenly stirred, and the flame-retardant liquid is obtained. According to the production method of the flame-retardant body paper, the waste paper is used as production raw materials, and the obtained flame-retardant body paper is low in production cost, can replace flame-retardant paper applied in the market, and can meet market needs better.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a flame-retardant base paper and a production method thereof. Background technique [0002] At present, the demand for flame-retardant paper in China is becoming more and more extensive, especially in recent years, the demand for flame-retardant paper in building materials (such as the core material of partition boards) is increasing; Some environmentally friendly furniture, the sandwich layer of interior doors, etc. However, most of the flame-retardant paper currently used in the market is flame-retardant kraft paperboard, and the production cost is high. Therefore, there is a need for a cheap paper with flame-retardant properties to replace it. Contents of the invention [0003] The object of the present invention is to provide a kind of flame-retardant base paper and its production method, in order to solve the above-mentioned problems. [0004] The embodiment of the ...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H17/28
Inventor 李庆刚钭大松
Owner ZHEJIANG XINDU PAPER CO LTD