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A kind of coated paper and its preparation method

A technology of coated paper and coating layer, which is applied in the field of papermaking, to achieve the effect of uniform ink absorption, not easy to shed, and good printing performance

Inactive Publication Date: 2017-10-17
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies existing in the prior art, the object of the present invention is to provide a kind of coated paper, its surface paper layer, core paper layer and bottom paper layer do not contain log pulp, all use waste paper as the main raw material, The cost of raw materials is low, the recycling of waste paper is realized, and it is environmentally friendly; the surface quality of the coated paper of the present invention is good, and phenomena such as delamination, breakage, foaming, cracking, and uneven ink absorption are not easy to occur

Method used

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  • A kind of coated paper and its preparation method
  • A kind of coated paper and its preparation method
  • A kind of coated paper and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0069] A kind of coated paper, comprises surface layer coating layer, precoating layer, surface adhesive layer, surface paper layer, core paper layer, bottom paper layer and bottom surface adhesive layer, the lower surface of described surface layer coating layer and described surface The upper surface of the adhesive layer is bonded, the pre-coating layer is arranged between the surface coating layer and the surface adhesive layer, the lower surface of the surface adhesive layer is bonded to the upper surface of the core paper layer, and the surface The paper layer is arranged between the surface rubber layer and the core paper layer, the lower surface of the core paper layer is bonded to the upper surface of the bottom surface rubber layer, and the bottom paper layer is arranged between the core paper layer and the bottom surface Between the adhesive layers, the pulp raw material of the surface paper layer includes mixed office waste paper, and the pulp raw materials of the c...

Embodiment 2

[0114] The difference between this embodiment and embodiment 1 is:

[0115] The mixed office waste paper is a mixture of American waste 37# and Japanese waste 3# in a mass ratio of 3.5:1.5; the European waste paper is a mixture of European waste 4# and European waste A2 in a mass ratio of 1:1 .

[0116] Both the raw material of the surface adhesive layer and the sizing material of the bottom adhesive layer include the following components in parts by weight: 90 parts of tapioca starch, 15 parts of surface sizing agent, 0.02 part of active amylase, and 16 parts of aluminum sulfate.

[0117] The surface sizing agent is polyacrylamide, and the active amylase is alpha amylase.

[0118] The coating of the pre-coating layer includes the following components by weight: 60 parts of calcium carbonate, 10 parts of styrene-butadiene latex, 5 parts of calcined kaolin, 0.3 parts of wet strength agent, 0.02 parts of pigment, 0.2 parts of pre-coating dispersant, 0.1 part of fungicide, 0.3 ...

Embodiment 3

[0135] The difference between this embodiment and embodiment 1 is:

[0136]The mixed office waste paper is a mixture of American waste 37# and Japanese waste 3# in a mass ratio of 4:2; the European waste paper is a mixture of European waste 4# and European waste A2 in a mass ratio of 2:1 .

[0137] Both the raw material of the surface adhesive layer and the adhesive material of the bottom adhesive layer include the following components in parts by weight: 100 parts of tapioca starch, 20 parts of surface sizing agent, 0.04 parts of active amylase, and 18 parts of aluminum sulfate.

[0138] The surface sizing agent is polyvinyl alcohol, and the active amylase is alpha amylase.

[0139] The coating of the pre-coating layer includes the following components by weight: 75 parts of calcium carbonate, 12 parts of styrene-butadiene latex, 7 parts of calcined kaolin, 0.5 parts of wet strength agent, 0.03 parts of pigment, 0.3 parts of pre-coating paint dispersant, 0.2 parts of fungic...

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Abstract

The invention relates to the technical field of papermaking, in particular to a coated paper and a preparation method thereof. The coated paper comprises a surface coating layer, a pre-coating layer, a surface adhesive layer, a surface paper layer, a core paper layer, a backing paper layer and a bottom adhesive layer, and the lower surface of the surface coating layer is connected to the surface The upper surface of the adhesive layer is bonded, the pre-coating layer is arranged between the surface coating layer and the surface adhesive layer, the lower surface of the surface adhesive layer is bonded to the upper surface of the core paper layer, and the surface The paper layer is arranged between the surface rubber layer and the core paper layer, the lower surface of the core paper layer is bonded to the upper surface of the bottom surface rubber layer, and the bottom paper layer is arranged between the core paper layer and the bottom surface Between the adhesive layers, the pulp raw material of the surface paper layer includes mixed office waste paper, and the pulp raw materials of the core paper layer and the bottom paper layer include European waste waste paper. The coated paper of the invention has good surface quality and is not prone to delamination, breakage, foaming, peeling and uneven ink absorption.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a coated paper and a preparation method 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: printing magazines, book publishing paper and printing paper for trademarks, packaging, catalogs and so on. Coated paper can be roughly divided into: coated paper, coated paper, lightweight coated paper, etc. [0003] With the increasing competition in the coated paper market, the selling price of coated paper tends to be stable, but the price of raw materials for coated paper is rising. How to reduce the amount of high-cost raw materials on the premise of ensuring the quality of coated paper, Increasing the proportion of waste paper raw materials is the key for paper-making enterprises to reduce production costs and improve economic benefits. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/30D21H11/14D21H19/82D21H19/84D21H19/14D21H21/16D21H19/38D21H19/40D21H19/58D21H21/20D21H21/06D21H21/36D21H21/30D21H21/12D21H21/02D21F11/00
Inventor 刘晋嵩刘永林新阳刘祥星
Owner DONGGUAN NINE DRAGONS PAPER IND
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