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High-glossiness coated paper and production process thereof

A technology with high gloss and production process, applied in the field of papermaking, can solve the problems of low gloss of coated paper, low surface water resistance, weak resistance to printing ink, etc., and achieve good covering ability, gloss improvement, whiteness and water resistance Effect

Inactive Publication Date: 2021-06-29
ZHEJIANG KRENT PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the gloss of coated paper produced by the existing technology is generally low
Furthermore, coated paper itself has the disadvantages of low surface water resistance, low whiteness, low smoothness, and weak oil and printing ink resistance.

Method used

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  • High-glossiness coated paper and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high-gloss coated paper and its production process, comprising the following steps:

[0033] Ⅰ. Weigh an appropriate amount of long-fiber pulp and short-fiber pulp according to the mass ratio of 1.2:1.0, and mix and prepare the two, then pour the mixed pulp into a heating container and boil to separate the fibers in the mixed pulp, and Purify the mixed pulp through the pressure screen, head box and wire part, and then pass through the pressing part for pressing, drying part for drying, coiling, slitting and other processes to obtain the base paper;

[0034] Among them, the moisture content of the base paper after being dried by the drying section is controlled at 3.0%;

[0035] Ⅱ. In parts by weight, weigh 40 parts of calcium hydroxide, 30 parts of barium sulfate, 15 parts of china clay, 5 parts of high-gloss paraffin, 15 parts of organic silicon and 5 parts of organic additives; then put the weighed materials into After mixing and stirring in the paint preparation b...

Embodiment 2

[0051] A high-gloss coated paper and its production process, comprising the following steps:

[0052] Ⅰ. Weigh appropriate amount of long-fiber pulp and short-fiber pulp according to the mass ratio of 1.3:1.0, and mix and prepare the two, then pour the mixed pulp into a heating container and boil to separate the fibers in the mixed pulp, and Purify the mixed pulp through the pressure screen, head box and wire part, and then pass through the pressing part for pressing, drying part for drying, coiling, slitting and other processes to obtain the base paper;

[0053] Among them, the moisture content of the base paper after being dried by the drying section is controlled at 3.5%;

[0054] Ⅱ. In parts by weight, weigh 42 parts of calcium hydroxide, 35 parts of barium sulfate, 20 parts of china clay, 10 parts of high-gloss paraffin, 10 parts of organic silicon and 6 parts of organic additives; then put the weighed materials into After mixing and stirring in the paint preparation bar...

Embodiment 3

[0070] A high-gloss coated paper and its production process, comprising the following steps:

[0071] Ⅰ. Weigh appropriate amount of long-fiber pulp and short-fiber pulp according to the mass ratio of 1.5:1.0, and mix and prepare the two, then pour the mixed pulp into a heating container and boil to separate the fibers in the mixed pulp, and Purify the mixed pulp through the pressure screen, head box and wire part, and then pass through the pressing part for pressing, drying part for drying, coiling, slitting and other processes to obtain the base paper;

[0072] Among them, the moisture content of the base paper after being dried by the drying section is controlled at 4.0%;

[0073] Ⅱ. In parts by weight, weigh 45 parts of calcium hydroxide, 43 parts of barium sulfate, 25 parts of china clay, 15 parts of high-gloss paraffin, 25 parts of organic silicon and 8 parts of organic additives; then put the weighed above-mentioned materials into After mixing and stirring in the pigme...

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Abstract

The invention relates to the technical field of papermaking, in particular to high-glossiness coated paper and a production process thereof. Long fiber slurry and short fiber slurry are used as raw materials for preparing the coated paper, pigment prepared from calcium hydroxide, barium sulfate, china clay, organic silicon, AKD, corn starch and the like, an adhesion agent and an organic additive are smeared on raw paper, and the raw paper is matched with high beating degree, proper screen mesh number and coating weight of the raw paper, so that the glossiness of the prepared coated paper can be improved to a great extent. Meanwhile, a blade coating mode is selected, an organic additive is added into mixed slurry, and a uniform coating amount and a specific coating tool bit material are matched, so that a coating layer has good covering power, and the glossiness and the smoothness of a product are further improved. Compared with common coated paper, according to the process for preparing the coated paper, the paper also has the advantages of high whiteness, water resistance, printing ink resistance and the like.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a high-gloss coated paper and a production process thereof. Background technique [0002] Coated paper is coated with a layer of paint on the base paper, so that the paper has good optical properties and printing performance. Its main uses are: publishing paper for printing magazines, books, etc., and printing paper for trademarks, packaging, catalogs, etc. The ratio of the two is about 1:3. Coated paper can be divided into: coated paper, coated paper, lightweight coated paper, in addition to special coated paper such as burnished coated paper. [0003] Coated paper is one of the commonly used printing materials in flexographic printing. In order to make it meet the printability requirements of the flexographic printing process, it should be controlled mainly from three aspects: ink absorption, surface strength and sensitivity of the coating layer. [0004] However, the glo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H15/02D21H15/06D21H19/40D21H19/64D21H19/44D21H19/84D21H19/10D21H17/17D21H17/28D21H17/66D21H17/51D21H19/82
CPCD21H27/00D21H15/02D21H15/06D21H19/40D21H19/64D21H19/44D21H19/84D21H19/10D21H17/17D21H17/28D21H17/66D21H17/51D21H19/828
Inventor 陈军王申良诸士林
Owner ZHEJIANG KRENT PAPER
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