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Coated paper

A technology for coated paper and base paper, applied in papermaking, paper coatings, textiles and papermaking, etc., can solve the problems of bumpy feel, high bulk, and elegant color of coated paper, and achieve bumpy feel, high bulk, and good printing effect. Effect

Active Publication Date: 2014-09-24
GOLD HUASHENG PAPER SUZHOU IND PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Customers have high requirements for coated paper, requiring coated paper to be light and elegant in color, uneven in hand, highly bulky, and bright in ink after printing. However, the current coated paper cannot meet customer needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Base paper: The pulp is a mixed pulp of 70 parts of LBKP, 10 parts of NBKP, 10 parts of BCTMP and 10 parts of APMP; the grammage of the papermaking base paper is 82gsm. The base paper had an ash content of 10%.

[0022] Top coating: 80 parts of calcium carbonate as pigment, 20 parts of matte flake china clay, 10 parts of styrene-butadiene latex as adhesive, and appropriate amount of other additives. The amount of coating is controlled at 12gsm per side, and calendering is not carried out after coating.

Embodiment 2

[0024] Base paper: The pulp is a mixture of 75 parts of LBKP, 10 parts of NBKP, 10 parts of BCTMP and 5 parts of APMP; the weight of the base paper is 95gsm, and the ash content of the base paper is 10%.

[0025] Top coating: 70 parts of calcium carbonate as pigment, 30 parts of matte flake china clay, 10 parts of styrene-butadiene latex as adhesive, and appropriate amount of other additives. The amount of coating is controlled at 12.5gsm per side, and calendering is not carried out after coating.

Embodiment 3

[0027] Base paper: The pulp is a mixed pulp of 80 parts of LBKP, 10 parts of NBKP and 10 parts of BCTMP; the grammage of the papermaking base paper is 170gsm. The base paper had an ash content of 10%.

[0028] Top coating: 60 parts of calcium carbonate as pigment, 40 parts of matte flake china clay, 12 parts of styrene-butadiene latex as adhesive, and appropriate amount of other additives. The amount of coating is controlled at 15gsm per side, and calendering is not carried out after coating.

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PUM

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Abstract

The invention provides coated paper, which comprises raw paper and coatings formed on two surfaces of the raw paper. Paper pulp for the preparation of the raw paper contains the following slurries of: by weight, 30-80 parts of bleached sulfate hardwood pulp, 0-30 parts of the bleached softwood pulp, 0-30 parts of bleached chemical mechanical pulp and 0-30 parts of alkaline peroxide mechanical pulp. The ash content in the raw paper is 5%-20% by weight. The paint for coating the coating layer contains matt flake china clay. By adjusting the kind and ratio of the raw paper slurries, the ash content of the raw paper to control the roughness and bulkness of the raw paper, the coated paper provided by the invention has an elegant paper color, a concavo-convex feel and a thick loose height. Furthermore, by the addition of matt flake china clay into the paint for coating the coating layer, a high coating seal performance is obtained with fewer coating weight, and the printing effect of the coated paper is good.

Description

technical field [0001] The invention relates to a coated paper. Background technique [0002] Coated paper is a high-grade printing paper made of base paper coated with white paint. It is mainly used for printing covers and illustrations of high-grade books and periodicals, color pictures, various exquisite product advertisements, samples, product packaging, trademarks, etc. Customers have high requirements for coated paper, requiring coated paper to be light and elegant in color, uneven to the touch, highly bulky, and bright in ink after printing. However, the current coated paper cannot meet the needs of customers. Contents of the invention [0003] In view of this, it is necessary to provide a coated paper that can effectively solve the above problems. [0004] A kind of art paper, it comprises base paper and the coating that is formed on both sides of base paper, and the pulp type and the mass parts of each pulp type contained in the pulp of making this base paper are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/02D21H19/84D21H19/40D21H21/16D21H21/18D21H21/10
Inventor 陈汉彬李娟施立才
Owner GOLD HUASHENG PAPER SUZHOU IND PARK
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