A kind of light coated kraft cardboard and its production method

A production method and technology of kraft paperboard, applied in the field of papermaking, can solve the problems that the uniformity and openness affect the ink absorption effect, the coating covering and uniformity have a great influence, and affect the printing quality of coated paper, etc., so as to reduce bleaching. Chemical dosage, improving market competitiveness, bright color effect

Active Publication Date: 2021-09-17
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of printing machine speed and the popularization of multi-color printing, higher requirements are put forward for the printing performance of light-coated cattle card, because the coating amount of light-coated cattle card is 16-30g / m 2 , the amount of coating is smaller than that of ordinary coated paper, the coverage and uniformity of the coating are greatly affected by the base paper, the uniformity and openness of the coating seriously affect the ink absorption effect, thus affecting the printing quality of coated paper, It is easy to produce dew and printing problems

Method used

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  • A kind of light coated kraft cardboard and its production method
  • A kind of light coated kraft cardboard and its production method
  • A kind of light coated kraft cardboard and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a light-coated kraft cardboard comprises a surface layer 1, a core layer 2 and a bottom layer 3, the core layer 2 is located between the surface layer 1 and the bottom layer 3, the upper side of the surface layer 1 is a positive surface sizing layer 4, and the bottom layer The lower side of 3 is the back surface sizing layer 5, the upper side of the front surface sizing layer 4 is the precoat coating layer 6, and the upper side of the precoat coating layer 6 is the top coating layer 7.

[0037] The production method of the above-mentioned light-coated kraft cardboard includes: preparing base paper, surface glue, coating and drying, wherein,

[0038] 1. Preparation of base paper: pulping, screening, purification, deinking, bleaching and beating of the pulp of the surface layer, core layer and bottom layer, and then sizing through the paper machine flow delivery system, dehydration and compounding at the wire part to obtain a dryness of 23% bas...

Embodiment 2

[0060] like figure 1 As shown, a light-coated kraft cardboard comprises a surface layer 1, a core layer 2 and a bottom layer 3, the core layer 2 is located between the surface layer 1 and the bottom layer 3, the upper side of the surface layer 1 is a positive surface sizing layer 4, and the bottom layer The lower side of 3 is the back surface sizing layer 5, the upper side of the front surface sizing layer 4 is the precoat coating layer 6, and the upper side of the precoat coating layer 6 is the top coating layer 7.

[0061] The production method of the above-mentioned light-coated kraft cardboard includes: preparing base paper, surface glue, coating and drying, wherein,

[0062] 1. Preparation of base paper: pulping, screening, purification, deinking, bleaching and beating of the pulp of the surface layer, core layer and bottom layer, and then sizing through the paper machine flow delivery system, dehydration and compounding at the wire part to obtain a dryness of 20% base p...

Embodiment 3

[0083] like figure 1 As shown, a light-coated kraft cardboard comprises a surface layer 1, a core layer 2 and a bottom layer 3, the core layer 2 is located between the surface layer 1 and the bottom layer 3, the upper side of the surface layer 1 is a positive surface sizing layer 4, and the bottom layer The lower side of 3 is the back surface sizing layer 5, the upper side of the front surface sizing layer 4 is the precoat coating layer 6, and the upper side of the precoat coating layer 6 is the top coating layer 7.

[0084] The production method of the above-mentioned light-coated kraft cardboard includes: preparing base paper, surface glue, coating and drying, wherein,

[0085] 1. Preparation of base paper: pulping, screening, purification, deinking, bleaching and beating of the pulp of the surface layer, core layer and bottom layer, and then sizing through the paper machine flow delivery system, dehydration and compounding at the wire part to obtain a dryness of 25% base p...

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Abstract

The invention relates to the technical field of papermaking, in particular to a light-coated kraftboard and a production method thereof. The light-coated kraft cardboard includes a surface layer, a core layer and a bottom layer. The light-coated kraft cardboard also includes a front surface sizing layer and a back surface sizing layer, which are respectively located on the surface layer and the bottom surface. A pre-coat coating layer is arranged on the adhesive layer, and a top-coat coating layer is arranged on the pre-coat coating layer; the production method of the light-coated kraft cardboard includes preparing base paper, surface glue, coating and drying, and the coating is carried out during coating. Adding new latex styrene acrylate latex or polyethylene ethyl latex to the top coating, the ester group reaction can increase the openness of the coating, improve the air permeability of the paper coating, and improve the ink absorption. In addition, it can also improve the coating. Covering, improve the smoothness and compressibility of the finished paper, thereby reducing the problems of whitening and printing blur, the printed paper is not easy to turn yellow, the color is more vivid and exquisite, and it can improve the whiteness of the finished paper and reduce the bleaching chemical Product consumption, reduce production costs.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a light-coated kraftboard and a production method thereof. Background technique [0002] Light-weight coated kraft linerboard has good mechanical strength and good coating performance. It is more and more widely used in the market, and its consumption is increasing year by year. With the continuous improvement of printing machine speed and the popularization of multi-color printing, higher requirements are put forward for the printing performance of light-coated cattle card, because the coating amount of light-coated cattle card is 16-30g / m 2 , the amount of coating is smaller than that of ordinary coated paper, the coverage and uniformity of the coating are greatly affected by the base paper, the uniformity and openness of the coating seriously affect the ink absorption effect, thus affecting the printing quality of coated paper, It is easy to produce problems of dew white ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/14D21H17/46D21H17/67D21H17/68D21H19/82D21H19/84D21H21/08D21H21/12D21H21/14D21H21/16D21H21/36D21H27/30B32B29/00
CPCB32B29/00D21H11/14D21H17/46D21H17/675D21H17/68D21H19/82D21H19/84D21H21/08D21H21/12D21H21/14D21H21/16D21H21/36D21H27/30
Inventor 刘名中张益安陈俊刘永宋林林
Owner DONGGUAN NINE DRAGONS PAPER IND
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