Process for producing printed decorative raw paper by using recycled waste paper

A production process and decorative base paper technology, applied in the direction of paper recycling, waste paper processing, recycling technology, etc., to achieve the effect of solving recycling problems, reducing waste water discharge, reducing raw material consumption and cost

Inactive Publication Date: 2011-09-07
杭州华旺新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a production process of waste paper recycling type printing and decoration base paper. Under the premise of reproducing secondary polluti

Method used

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  • Process for producing printed decorative raw paper by using recycled waste paper
  • Process for producing printed decorative raw paper by using recycled waste paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] refer to figure 1 , the production process steps of waste paper recovery type printing decoration base paper of the present invention are as follows:

[0018] The first step: waste paper treatment, put 85% waste paper and 15% chemical additives into the waste paper treatment equipment and mix them, and remove the waste paper at a temperature of 45°C with the help of chemical additives Tape, ink and other impurities in the waste paper and water are prepared with a pH value of 8.5 and a mass percentage concentration of 7.0%. The waste paper is completely decomposed into a waste paper slurry without paper pieces and free ink. The chemical additives include sodium hypochlorite And sodium hydroxide, the weight ratio of sodium hypochlorite and sodium hydroxide is 1:3;

[0019] The second step: pulping, through the pulping equipment, the waste paper pulp, wood pulp, titanium dioxide, pigment and water after the above treatment are mixed evenly, and the slurry with a mass perc...

Embodiment 2

[0024] refer to figure 1 , the production process steps of waste paper recovery type printing decoration base paper of the present invention are as follows:

[0025] The first step: waste paper treatment, put 88% waste paper and 12% chemical additives into the waste paper treatment equipment and mix them, and remove the waste paper at a temperature of 48°C with the help of chemical additives Tape, ink and other impurities in the waste paper and water are prepared with a pH value of 9.0 and a mass percentage concentration of 7.5%. The waste paper is completely decomposed into a waste paper slurry without paper pieces and free ink. The chemical additives include sodium hypochlorite. And sodium hydroxide, the weight ratio of sodium hypochlorite and sodium hydroxide is 1:3;

[0026] The second step: pulping, through the pulping equipment, the waste paper pulp, wood pulp, titanium dioxide, pigment and water after the above treatment are mixed evenly, and the slurry with a mass per...

Embodiment 3

[0031] refer to figure 1 , the production process steps of waste paper recovery type printing decoration base paper of the present invention are as follows:

[0032] The first step: waste paper treatment, put 80% waste paper and 20% chemical additives into the waste paper treatment equipment and mix them, and remove the waste paper at a temperature of 42°C through the assistance of chemical additives Tape, ink and other impurities in the waste paper and water are prepared with a pH value of 8.7 and a mass percentage concentration of 6.5%. The waste paper is completely decomposed into a waste paper slurry without paper pieces and free ink. The chemical additives include sodium hypochlorite. And sodium hydroxide, the weight ratio of sodium hypochlorite and sodium hydroxide is 1:3;

[0033] The second step: pulping, through the pulping equipment, the waste paper pulp, wood pulp, titanium dioxide, pigment and water after the above treatment are mixed evenly, and the slurry with a...

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Abstract

The invention relates to a process for producing printed decorative raw paper by using recycled waste paper. The process comprises the steps of waste paper treating, pulping, defibrinating, pulp preparing and papermaking, wherein the step of waste paper treating comprises the steps of mixing 80-90 wt% of waste paper and 10-20 wt% of chemical auxiliaries and then mixing with water at the temperature of 40-50 DEG C to prepare waste paper pulp with pH value being 8.0-9.0 and mass percent concentration being 6.0-8.0%; the step of pulping is characterized by mixing the waste paper pulp, wood pulp, kaolin, titanium dioxide, pigment and other raw materials with water to prepare pulp with a certain concentration; and the step of pulp preparing is characterized by adding a certain amount of a wet strength agent, a retention agent such as alum and an auxiliary to the defibrinated pulp to prepare pulp with a certain concentration. According to the invention, the treated waste paper and wood pulp are proportionally mixed to produce impregnated titanium oxide paper made from recycled waste paper; and all the quality indexes of the decorative raw paper can meet the requirements of the decorative raw paper; and the consumption and cost of the raw materials can be reduced and great economic and social benefits can be achieved.

Description

technical field [0001] The invention relates to a production process of decorative base paper, in particular to a production process of recycling printing waste paper to produce decorative base paper. Background technique [0002] The decorative base papers currently on the market are mainly decorative special papers used on the surface of furniture and floors. According to the requirements of users, after the surface of the base paper is printed into various designs and colors, it is then bonded to the surface by dipping and pressing. The surface of the board can beautify the board. In the printing process of decorative base paper, since the printing uses water-based ink, the treatment and recycling of waste paper during the printing process has become a major problem. The traditional treatment method at home and abroad is to simply process the waste paper and use it in production Low-grade balance paper has very low added value. How to effectively utilize waste paper is a...

Claims

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Application Information

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IPC IPC(8): D21C5/02D21H17/67D21H17/68D21H21/20D21H21/10D21H21/12D21H17/55D21H17/66
CPCY02W30/64
Inventor 葛丽芳樊慧明
Owner 杭州华旺新材料科技股份有限公司
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