Preparation method of office paper with effect of moisture prevention

A technology of paper and sulfate, applied in the field of papermaking, can solve the problems of paper moisture return, achieve the effects of reducing moisture absorption, high smoothness, and improving machine performance

Inactive Publication Date: 2017-02-15
ASIA SYMBOL GUANGDONG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing offi

Method used

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  • Preparation method of office paper with effect of moisture prevention

Examples

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Example Embodiment

[0025] Example 1

[0026] An embodiment of a preparation method of office paper with moisture-proof effect, as attached figure 1 Shown, described preparation method comprises the following steps:

[0027] (1) Slurry disintegration and slag removal: disintegrate the imported long and short fiber kraft wood pulp and chemical mechanical pulp at a concentration of 5% by mass respectively, When the mass percentage concentration of the slurry is 4%, it will be treated by a high-concentration slag remover to remove heavy impurities in the slurry;

[0028] (2) beating: the pulp after step (1) is crushed is beaten, the freeness of short fiber kraft wood pulp is controlled at 300CFS after beating, and the freeness of short fiber kraft wood pulp is controlled at about 280CFS;

[0029] (3) Pulp preparation and pulp purification: the long fiber kraft wood pulp and short fiber kraft wood pulp and chemical mechanical pulp after beating are divided into long fiber kraft wood pulp: short fib...

Example Embodiment

[0038] Example 2

[0039] An embodiment of a preparation method of office paper with moisture-proof effect, as attached figure 1 Shown, described preparation method comprises the following steps:

[0040] (1) Slurry disintegration and slag removal: disintegrate the imported high-strength, high-whiteness long and short fiber sulfate and chemical mechanical pulp at a concentration of 5% by mass, and then disintegrate the long and short fiber sulfate When the mass percentage concentration of wood pulp and chemical mechanical pulp is 4%, it will be treated by high-consistency slag remover to remove heavy impurities in the pulp;

[0041] (2) beating: the pulp after step (1) is crushed is beaten, the freeness of long fiber kraft wood pulp is controlled at 400CFS after beating, and the freeness of short fiber kraft wood pulp is controlled at about 380CFS;

[0042](3) Pulp preparation and pulp purification: the long fiber kraft wood pulp and short fiber kraft wood pulp and chemical ...

Example Embodiment

[0051] Example 3

[0052] An embodiment of a preparation method of office paper with moisture-proof effect, as attached figure 1 Shown, described preparation method comprises the following steps:

[0053] (1) Slurry disintegration and slag removal: disintegrate the imported high-strength, high-whiteness long and short fiber sulfate and chemical mechanical pulp at a concentration of 5% by mass, and then disintegrate the long and short fiber sulfate When the mass percentage concentration is 4%, it will be treated by a high-concentration slag remover to remove heavy impurities in the slurry;

[0054] (2) beating: the pulp after step (1) is crushed is beaten, the freeness of long-fiber kraft wood pulp is controlled at 350CFS after beating, and the freeness of short-fiber kraft wood pulp is controlled at about 330CFS;

[0055] (3) Pulp preparation and pulp purification: the long fiber sulfate and chemical mechanical pulp after beating are divided into long fiber sulfate fiber woo...

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Abstract

The invention discloses a preparation method of an office paper with the effect of moisture prevention. The preparation method comprises (1) slurry breaking and slag removal, (2) beating, (3) slurry blending and purification, (4) net molding, (5) squeezing dehydration, (6) paper predrying, (7) paper surface treatment, (8) paper after drying, and (9) paper soft calendering treatment. The method solves the problem of high-grade office paper moistening caused by the weather during the use, improves paper machining performances in copying and printing in the wet weather, and reduces paper warpage and blocking.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a preparation method of office paper with moisture-proof effect. Background technique [0002] Ordinary office paper uses ordinary alkenyl succinic anhydride for sizing, and the water resistance of the finished paper is average, and it is easy to absorb moisture in wet weather. The water content of the finished paper is controlled too high, which is not conducive to keeping the paper dry. When the weather is humid, the printing and copying process is prone to warping, paper jams and other problems, which reduces the efficiency. Ordinary office paper is usually filled with light calcium carbonate or heavy calcium carbonate in the paper sheet making process. Too high filling amount will cause certain wear and tear on office equipment, and filling with heavy calcium carbonate slurry will make the The finished paper has low bulk and poor machine performance. In the ...

Claims

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Application Information

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IPC IPC(8): D21H15/10D21H21/16D21H17/67D21H17/29D21H21/30D21H21/28D21H17/14D21H17/37D21H17/68D21H21/12D21H21/36D21H19/14D21G1/00D21F11/00
CPCD21F11/00D21G1/00D21H11/02D21H11/04D21H15/10D21H17/14D21H17/29D21H17/37D21H17/675D21H17/68D21H17/74D21H19/14D21H21/12D21H21/16D21H21/28D21H21/30D21H21/36
Inventor 韦克许正茂雷江波张朝辉
Owner ASIA SYMBOL GUANGDONG PAPER
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