Preparation method of high-bulkiness super-sensitive paper

A base paper and coating technology, applied in the field of preparation of high-bulk ultra-sensitive paper, can solve the problems of large loss of paper bulk and small loss of paper bulk, and achieve the effects of low production energy consumption, simple equipment, and strong fiber feeling

Inactive Publication Date: 2019-03-15
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of large loss of paper bulk after coating in the production of super-sensitive paper in the above existing methods, this application provides a kind of synthetic resin pigment as coating pigment, which has a small loss of paper bulk after coating. Preparation method of high-bulk ultra-sensitive paper

Method used

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  • Preparation method of high-bulkiness super-sensitive paper

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] Step 1: base paper production

[0039] Pulp ratio: chemical hardwood pulp: chemical softwood pulp = 80: 20;

[0040] Beating degree: chemical hardwood pulp is 45°SR, chemical softwood pulp is 36°SR;

[0041] After the slurry preparation is completed, the slurry is treated with one-stage and three-stage slag removal, and 50Kg / ton of paper is added with light calcium carbonate, and 10Kg / ton of paper cationic starch and 20Kg / ton of paper AKD are metered before the pulping pump. , 0.5Kg / ton of c-PAM paper, through the rotor screen - headbox online, the pulp net speed ratio is controlled at 1.01, and finally dried into paper.

[0042] The main index of paper: quantitative is 81g / cm 2 , the bulk thickness is 1.92cm 3 / g, the nap strength is 2.5m / s, and the surface absorption is 23g / cm 2 .

[0043] Step 2: Coating treatment

[0044] Coating formula: (according to the dry weight percentage of coating)

[0045] Calcium carbonate: porcelain clay: polystyrene pigment: carbo...

example 2

[0055] Step 1: base paper production

[0056] Pulp ratio: chemical hardwood pulp: chemical softwood pulp: poplar APMP=50:30:20;

[0057] Beating degree: chemical hardwood pulp is 45°SR, chemical softwood pulp is 36°SR, poplar APMP is 55°SR;

[0058] After the slurry preparation is completed, the slurry is treated with one-stage and three-stage slag removal, and 80Kg / ton of paper is added with light calcium carbonate, and 10Kg / ton of paper cationic starch and 25Kg / ton of paper AKD are metered before the pulping pump. , 0.5Kg / ton of c-PAM paper, through the rotor screen - headbox online, the pulp net speed ratio is controlled at 1.01, and finally dried into paper.

[0059] The main index of paper: quantitative is 175g / cm 2 , the bulk thickness is 1.91cm 3 / g, the nap strength is 3.7m / s, and the surface absorption is 24g / cm 2 .

[0060] Step 2: Coating treatment

[0061] Coating formula: (according to the dry weight percentage of coating)

[0062] Calcium carbonate: titani...

Embodiment 3

[0070] With embodiment 1 base paper as base material, carry out coating treatment;

[0071] Coating formula: (according to the dry weight percentage of coating)

[0072] Calcium carbonate: titanium dioxide: polystyrene pigment: carboxylated styrene-butadiene latex: coating starch: PVA=40 parts: 20 parts: 20 parts: 10 parts: 5 parts: 5 parts;

[0073] Coating preparation technology is with example 1;

[0074] Paint index:

[0075] The solid content is 42±0.2%; the viscosity is 60±2.5mPa.s; the coating temperature is 40±0.5℃.

[0076] Coating process is the same as example 1;

[0077] Coating process requirement is the same as example 1.

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Abstract

The invention relates to the technical field of papermaking, in particular to a preparation method of high-bulkiness super-sensitive paper: base paper is dried, coiled and split after being coated, and a coating method is to coat each of two sides with an air knife. The invention provides a method for preparing the high-bulkiness super-sensitive paper by air knife coating. A coating used for coating is prepared from a polystyrene pigment, a mineral pigment, an adhesive and other coating aids, and the obtained super-sensitive paper is strong in surface fiber sense and high in bulkiness; the process is low in production energy consumption, and equipment is simple and easy to obtain; a process flow is simple, and batch production can be realized; and furthermore, the whole flow is completelyimplemented in a closed cycle without pollution.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a preparation method of high-bulk ultra-sensitive paper. Background technique [0002] Super-sensitive paper is a high-grade coated printing paper proposed abroad. The characteristics of this paper retain the natural fiber feeling of the paper surface, pursue high bulkiness, low smoothness, light and stiff hand feeling, and low viewing and visual fatigue. The printing effect of coated printing paper is accurate in color reproduction and good in rendering. The paper color is natural and friendly, while the ink dots are bright in color, and the imaging has a three-dimensional aesthetic. Therefore, it is widely used in high-end picture albums, samples, invitations, posters, real estate brochures, advertisements and other printed materials. [0003] Different from coated paper, the production process of this paper is simple. In order to maintain the fiber feeling of the paper su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/32D21H19/38D21H19/40D21H19/42D21H19/52D21H19/60D21H19/58D21H19/54
CPCD21H19/385D21H19/40D21H19/42D21H19/52D21H19/54D21H19/58D21H19/60D21H23/32
Inventor 姜亦飞
Owner QILU UNIV OF TECH
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