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Coated paper and preparation method thereof

A technology of coated paper and base paper layer, which is applied in the field of coated paper and its preparation, can solve the problems of lack of universality and difficulty in actual production and application, and achieve the effect of improving ink absorption and increasing porosity

Active Publication Date: 2021-08-20
GOLD EAST PAPER JIANGSU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The preparation method of traditional coated paper usually replaces the pigment in the coating formula, and improves the ink absorption and ink drying ability of the paper by improving the ink absorption and drying performance of the pigment in the coating. The replacement pigments used are all special pigments with specific specifications and usage, and it is difficult to directly apply them in actual production. Therefore, the traditional method is not universal

Method used

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  • Coated paper and preparation method thereof
  • Coated paper and preparation method thereof
  • Coated paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 6～14

[0063] Implementation cases 6-14: Composed of the above-mentioned base paper formation improvement implementation case 1 / 3 / 5+coating formula 1 / 2 / 3 / 4 / 5.

[0064]

[0065]

[0066]

[0067]

[0068] Through comparison between above-mentioned embodiment 6 (control group) and embodiment 7~14, it can be seen that rod-shaped or needle-shaped precipitated calcium carbonate is selected in the coating formula of the preparation method of coated paper of the present invention, and the PSD50 particle size range is 0.3~0.5 Micron, and kaolin, which can form uniform pores in the coating to ensure ink absorption and drying speed. The present invention selects the styrene-butadiene latex of high tg value (1~5 ℃) and higher particle diameter (130~180nm), can improve the open porosity of styrene-butadiene latex film-forming by styrene monomer, and high tg value latex can increase Porosity of film formation. Therefore, both high tg value and higher particle size are beneficial to ink...

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Abstract

The invention discloses coated paper and a preparation method thereof. The preparation method of the coated paper comprises the following steps of obtaining papermaking pulp, and making the papermaking pulp to obtain a raw paper layer, forming a bottom coating on at least one side of the raw paper layer, obtaining a top coating, and coating the top coating to one side, far away from the raw paper layer, of the bottom coating to form a top coating, so as to obtain the coated paper, wherein the top coating comprises styrene-butadiene latex, and the mass fraction range of a styrene monomer combined in the styrene-butadiene latex is 40-70%. According to the method, the printing ink absorbency and the printing ink drying capacity of the paper can be improved, and then the lithographic printing speed is increased.

Description

technical field [0001] The invention relates to the technical field of paper preparation, in particular to a coated paper and a preparation method thereof. Background technique [0002] Offset printing is currently the main printing method in the printing market. Under the premise of satisfying the printing quality, the improvement of printing speed is one of the main means of competition in the printing market. Therefore, in order to increase the speed of lithographic printing, it is of great significance to improve the characteristics of paper such as ink absorption and ink drying ability. [0003] The preparation method of traditional coated paper usually replaces the pigment in the coating formula, and improves the ink absorption and ink drying ability of the paper by improving the ink absorption and drying performance of the pigment in the coating. The replaced pigments used are all special pigments with specific specifications and usage, and it is difficult to direct...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H19/84D21H19/40D21H19/58D21H11/02D21H11/04D21H21/10D21H21/14
CPCD21H27/00D21H19/84D21H19/385D21H19/40D21H19/58D21H11/02D21H11/04D21H21/10D21H21/14
Inventor 杨露陈杰於旺盛刘春壮欢
Owner GOLD EAST PAPER JIANGSU
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