Low basis weight damp-proof coated white board and preparation method thereof

A technology of white board paper and moisture-proof coating, which is applied in the direction of coating, paper, papermaking, etc., can solve the problems of low moisture resistance of paper and high production cost, and achieve good printing surface strength and physical strength, strength and slight improvement, Effect of dosing and moisture barrier properties

Inactive Publication Date: 2017-02-22
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low moisture resistance and high production cost of paper, and realize a moisture-proof whiteboard paper with high moisture-proof performance, which can use traditional papermaking equipment and low production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method for low-weight moisture-proof coated white board paper, comprising the steps of:

[0027] 1) Mixing slurry: prepare four layers of slurry respectively, the method is as follows:

[0028] i Moisture-proof surface layer preparation: 100 parts of natural color wood pulp fiber, 1.0 parts of polyphenylene ether resin emulsion of moisture-proof agent, 5.0 parts of paraffin wax emulsion;

[0029] ii core layer slurry is 70 parts of OCC fiber, 30 parts of natural color bamboo pulp fiber;

[0030] iii Liner slurry is 100% bleached office waste paper fiber;

[0031] iv Pulp preparation for moisture-proof bottom layer: 100 parts of natural color wood pulp fiber, 2.0 parts of moisture-proof agent alkyl ketene dimer emulsion, 3.0 parts of paraffin wax emulsion.

[0032] The natural color bamboo pulp fiber described in step 1 is prepared by chemical thermomechanical method, and the bamboo chips are processed through 8% sodium hydroxide, 3%H 2 o 2 It is pretre...

Embodiment 2

[0041] A preparation method for low-weight moisture-proof coated white board paper, comprising the steps of:

[0042] 1) Mixing slurry: prepare four layers of slurry respectively, the method is as follows:

[0043]i Moisture-proof surface layer preparation: 100 parts of natural color wood pulp fiber, 2.0 parts of polyphenylene ether resin emulsion of moisture-proof agent, 3.0 parts of paraffin wax emulsion;

[0044] ii The pulping of the core layer is 75 parts of OCC fiber and 25 parts of natural bamboo pulp fiber;

[0045] iii. The lining layer is made of 100% bleached office waste paper fiber;

[0046] iv Pulp preparation for moisture-proof bottom layer: 100 parts of natural color wood pulp fiber, 3.0 parts of moisture-proof agent alkyl ketene dimer emulsion, 2.5 parts of paraffin wax emulsion.

[0047] The natural color bamboo pulp fiber described in step 1 is prepared by chemical thermomechanical method, and the bamboo chips are processed through 8% sodium hydroxide, 3%H...

Embodiment 3

[0056] A preparation method for low-weight moisture-proof coated white board paper, comprising the steps of:

[0057] 1) Mixing slurry: prepare four layers of slurry respectively, the method is as follows:

[0058] i Moisture-proof surface layer preparation: 100 parts of natural color wood pulp fiber, 3.0 parts of polyphenylene ether resin emulsion of moisture-proof agent, 5.0 parts of paraffin wax emulsion;

[0059] ii The core layer is mixed with 80 parts of OCC fiber and 20 parts of natural bamboo pulp fiber;

[0060] iii. The lining layer is made of 100% bleached office waste paper fiber;

[0061] iv Pulp preparation for moisture-proof bottom layer: 100 parts of natural color wood pulp fiber, 4.0 parts of moisture-proof agent alkyl ketene dimer emulsion, 3.0 parts of paraffin wax emulsion.

[0062] The natural color bamboo pulp fiber described in step 1 is prepared by chemical thermomechanical method, and the bamboo chips are processed through 8% sodium hydroxide, 3%H 2...

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PUM

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Abstract

The invention discloses a low basis weight damp-proof coated white board which comprises a coated base paper board and a damp-proof coating layer. By adding of a moisture proof agent into surface pulp and prime pulp of the base paper board and coating of the surface with the damp-proof coating layer, the damp-proofing function can be cooperatively realized. The invention further discloses a preparation method of the damp-proof white board. The preparation method comprises the following steps: (1) slurry preparation, (2) dehydration and forming, (3) squeezing, (4) pre-drying, (5) coating, (6) after-drying, and (7) splitting. The white board prepared based on the preparation method is high in printing surface intensity and physical intensity and high in damp-proofing property; a user product is light in weight, and the packaging cost of a user is reduced; the production cost and the transportation cost of an enterprise are reduced; the market competitiveness is enhanced.

Description

technical field [0001] The invention belongs to the technical field of special paperboard preparation, and in particular relates to a low-quantity moisture-proof coated white board paper and a preparation method thereof. Background technique [0002] For paper products, its application in the packaging field is becoming more and more extensive. However, with the wide range of packaging products, the requirements for packaging materials are getting higher and higher, especially for some moisture-proof products, the requirements for the moisture-proof performance of packaging materials are more stringent. Taking cartons as an example, since cardboard boxes will absorb moisture in the air after a period of use, on the one hand, the strength of the cardboard box will be reduced, and on the other hand, the quality of the items stored in the cardboard box will be further affected. Therefore, it is necessary to carry out moisture-proof treatment on the carton to avoid the situatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H11/14D21H11/12D21H19/38D21H19/40D21H19/44D21H21/16D21F11/00D21H23/48
CPCD21F11/00D21H11/12D21H11/14D21H19/385D21H19/40D21H19/44D21H21/16D21H23/48D21H27/10
Inventor 胡志军吴萍陈南男林江梁忠平徐志军
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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