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A method for producing artistic cardboard with commercial wood pulp as raw material

A wood pulp and commodity technology, applied in textiles and papermaking, fiber raw material processing, paper, etc., can solve problems such as uneven ink absorption, untrue color reproduction, poor paper evenness, etc., to achieve moderate ink absorption, The effect of delicate surface and small environmental impact

Active Publication Date: 2017-09-22
临朐玉龙造纸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limitations of production technology and production equipment, there is still a certain gap between domestic art cardboard and imported art cardboard in terms of printing performance and other technical indicators, mainly reflected in the roughness of the paper surface, insufficient fineness, and poor paper evenness. Good results in uneven ink absorption, untrue color reproduction during printing, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1;

[0023] First mix and disintegrate commercial softwood pulp and hardwood pulp with a hydraulic pulper, and then pass through 4 sets of double disc refiners to refine pulp until the degree of knocking reaches 35°SR. The mixing ratio of commercial softwood pulp and hardwood pulp is based on dry matter mass Calculate, 60% commercial softwood pulp and 40% hardwood pulp to prepare mixed wood pulp, add urea-formaldehyde resin accounting for 1% of the dry matter weight of mixed wood pulp in the pulp mixing tank, mix evenly and set aside. The prepared pulp is passed through a slag remover and a pressure screen to remove impurities in the pulp, and cetyl dipolyvinyl ketone neutral sizing agent accounting for 4% of the dry matter of the mixed wood pulp is added, accounting for 4% of the dry matter of the mixed wood pulp. 15% by weight of heavy calcium carbonate, polyacrylamide accounting for 0.07% of the dry matter weight of mixed wood pulp (the amount of various addi...

Embodiment 2

[0026] Example 2;

[0027] First mix and disintegrate commercial softwood pulp and hardwood pulp with a hydraulic pulper, and then pass through 4 sets of double disc refiners to refine pulp until the degree of knockdown reaches 37°SR. The mixing ratio of commercial softwood pulp and hardwood pulp is based on the dry matter mass Calculate, 50% commercial softwood pulp and 50% hardwood pulp to prepare mixed wood pulp, add urea-formaldehyde resin accounting for 0.08% of the dry matter weight of the mixed wood pulp in the pulp mixing tank, mix well and set aside. The prepared pulp passes through a slag remover and a pressure screen to remove impurities in the pulp, and adds cetyl dipolyvinyl ketone neutral sizing agent accounting for 3% of the dry matter of the mixed wood pulp, accounting for 3% of the dry matter of the mixed wood pulp. 13.5% by weight of heavy calcium carbonate, polyacrylamide accounting for 0.05% by weight of mixed wood pulp dry matter (the amount of various add...

Embodiment 3

[0030] Example 3;

[0031]First mix and disintegrate commercial softwood pulp and hardwood pulp with a hydraulic pulper, and then pass through 4 sets of double disc refiners until the degree of knocking reaches 38°SR. The mixing ratio of commercial softwood pulp and hardwood pulp is based on the dry matter mass Calculate, 30% commercial softwood pulp and 70% hardwood pulp to prepare mixed wood pulp, add urea-formaldehyde resin accounting for 0.06% of the dry matter weight of the mixed wood pulp in the pulp mixing tank, mix well and set aside. The prepared pulp passes through a slag remover and a pressure screen to remove impurities in the pulp, and adds cetyl dipolyvinyl ketone neutral sizing agent accounting for 2% of the dry matter of the mixed wood pulp, accounting for 2% of the dry matter of the mixed wood pulp. 11% by weight of heavy calcium carbonate, polyacrylamide accounting for 0.06% of the dry matter weight of the mixed wood pulp (the amount of various additives is c...

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Abstract

The invention discloses a method for producing an artistic paperboard by taking a commercial wood pulp as a raw material. The method comprises preparing a mixed wood pulp, then preparing a paper pulp, successively adding an internal sizing agent, heavy calcium carbonate and polyacrylamide into the paper pulp, and finally performing calendaring and reeling for obtaining finished paper, so as to obtain raw paper of the artistic paperboard; and preparing a coating, smearing the raw paper with the coating, performing calendaring by a supercalender, and performing rewinding by a rewinder, so as to obtain the artistic paperboard finished product. The beneficial effects comprise that 1, after the raw paper produced from high-quality commercial wood pulp is subjected to coating and calendaring, the surface is fine, printing ink absorption property is moderate, and printing performance is good; 2, the production technological flow does not employ self-made pulp and whitening agents, pollution source is less, and environmental influence is extremely small; and 3, produced sewage is extremely less, and cleaning production and neutral environment-friendly papermaking are realized.

Description

technical field [0001] The invention relates to a method for producing artistic cardboard by using commercial wood pulp as a raw material, and the invention belongs to the field of papermaking. Background technique [0002] In my country, packaging products are mainly divided into four categories: paper packaging, plastic packaging, metal packaging and glass packaging products. Among them, paper packaging has advantages such as wide sources, low cost, easy handling, easy storage and recycling. One of the most widely used packaging forms. Paper packaging is recyclable, green and environmentally friendly, and is also in line with the development direction of circular economy. [0003] Cardboard is a general term for a type of thick paper that weighs 120-250 grams per square meter between paper and cardboard. It is used for postcards, cards, album lining paper, exquisite packaging, etc. The paper surface is fine and smooth. Hard and wear-resistant, good water resistance and ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/00D21H17/55D21H17/67D21H19/38D21H19/54D21H21/16D21H21/20D21H11/08
CPCD21H11/08D21H17/47D21H17/55D21H17/57D21H17/675D21H17/74D21H19/10D21H19/38D21H19/385D21H19/42D21H19/44D21H19/54D21H21/16D21H21/20
Inventor 李雪冰吴少河
Owner 临朐玉龙造纸有限公司
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