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Multipurpose coated paper and production process thereof

A production process and technology of coated paper, applied in the field of coated paper, to achieve the effect of bright printing color, excellent coating strength and reducing stocking quantity

Pending Publication Date: 2022-05-06
HAINAN JINHAI PULP & PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Chinese patent CN101638861B-a manufacturing method of industrial coated base paper, the patent is uncoated coated base paper, uncoated coated base paper does not have the high fineness, high smoothness and high luster, and its slurry is mainly made of reed pulp, which is also quite different from the pure wood pulp used in the present invention

Method used

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  • Multipurpose coated paper and production process thereof
  • Multipurpose coated paper and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The production technology of embodiment 1 multipurpose coated paper

[0029] (1) Bleached hardwood kraft pulp, bleached softwood kraft pulp and alkaline hydrogen peroxide mechanical pulp with a mass ratio of 80:5:15 were mixed to obtain dry pulp.

[0030] (2) Add 20% ground calcium carbonate, positive starch 8kg / t, positive polyacrylamide retention aid 100ppm, colloidal silicon dioxide 4.0kg / t and alkenyl succinic anhydride sizing agent 1.5kg according to the absolute dry slurry quality / t, mixed to obtain base paper dry pulp, the base paper dry basis weight is 100gsm, moisture content is 7%, the ground calcium carbonate adopts C60 grade, and the particle size in the ground calcium carbonate is less than or equal to 2 μm The particle content is 60%.

[0031] (3) The dry pulp of the base paper is made by a single-layer wire, and the ratio of the pulp to the wire is 1.050, and the base paper is obtained.

[0032] (4) Base paper uses enzymatic starch coating for surface ...

Embodiment 2

[0037] The production technology of embodiment 2 multi-purpose coated paper

[0038] (1) Bleached hardwood kraft pulp with a mass ratio of 85:15 and alkaline hydrogen peroxide mechanical pulp were mixed to obtain dry pulp.

[0039](2) Add 10% ground calcium carbonate, positive starch 5kg / t, positive polyacrylamide retention aid 50ppm, colloidal silicon dioxide 3.0kg / t and alkenyl succinic anhydride sizing agent 1.0kg according to the absolute dry slurry quality / t, mixed to obtain base paper dry slurry, the base paper dry basis weight is 75gsm, moisture content is 5%, the ground calcium carbonate adopts C60 grade, and the particle size in the ground calcium carbonate is less than or equal to 2 μm The particle content is 60%.

[0040] (3) The dry pulp of the base paper is made by a single-layer wire, and the ratio of the pulp to the wire is 1.040, and the base paper is obtained.

[0041] (4) Base paper uses enzymatic starch coating to carry out surface sizing, the amount of g...

Embodiment 3

[0046] The production technology of embodiment 3 multi-purpose coated paper

[0047] (1) Bleached hardwood kraft pulp, bleached softwood kraft pulp and alkaline hydrogen peroxide mechanical pulp with a mass ratio of 76:8:16 were mixed to obtain dry pulp.

[0048] (2) Add 12.8% ground calcium carbonate, positive starch 6kg / t, positive polyacrylamide retention aid 80ppm, colloidal silicon dioxide 3.6kg / t and alkenyl succinic anhydride sizing agent 1.4kg according to the absolute dry slurry quality / t, mixed to obtain base paper dry slurry, the base paper dry basis weight is 101gsm, moisture content is 6.6%, the ground calcium carbonate adopts C60 grade, and the particle size in the ground calcium carbonate is less than or equal to 2 μm The particle content is 60%.

[0049] (3) The dry pulp of the base paper is made by a single-layer wire, and the ratio of the pulp to the wire is 1.045, and the base paper is obtained.

[0050] (4) Base paper uses enzymatic starch coating to car...

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Abstract

According to the production process of the multipurpose coated paper, the bleached broadleaf wood sulfate pulp, the bleached softwood sulfate pulp and the alkaline hydrogen peroxide mechanical pulp are reasonably proportioned, and the prepared raw paper is subjected to prime coating, floating coating and surface coating and finally is subjected to calendering. And the prepared coated paper has moderate moisture content and relative humidity, and is suitable for processing and production of printing, handbag processing, coated paper and the like. The prepared coated paper is excellent in performance, can meet the printing requirement of coated paper and the handbag processing performance, is used for preparing processing base paper prepared by a laminating film, and has excellent laminating film fastness and anti-warping performance.

Description

technical field [0001] The invention relates to the field of coated paper, in particular to a production process of multipurpose coated paper. Background technique [0002] There are many types of coated paper, the most common ones can be divided into coated whiteboard paper made by multi-layer mesh and coated paper made by single-layer mesh. There are also various uses, so the quality is also different. Coated paper mostly adopts offset printing, and is used for books, albums, posters, high-end magazines, desk calendars, handbags, etc. Its quality requires exquisite printing, and handbags also need strong anti-bending performance. [0003] Coated base paper in the market is mainly uncoated paper, and some coated papers are also used as coated base paper. The quality of coated coated base paper is different from that of general coated paper. Because there is no printing on the base paper, there are no requirements for printing quality. High, but laminating processing and su...

Claims

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Application Information

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IPC IPC(8): D21G1/00D21H11/04D21H11/08D21H17/28D21H17/67D21H17/68D21H19/84D21H21/10D21H21/16D21H23/22
CPCD21H11/04D21H11/08D21H17/28D21H17/675D21H17/68D21H21/10D21H21/16D21H23/22D21H19/84D21G1/00
Inventor 梁昌良刘伟万云军翁浥程
Owner HAINAN JINHAI PULP & PAPER
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