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Laminating paper feeding and discharging production process

A production process and technology of coated paper, applied in papermaking, paper coating, papermaking machines, etc., can solve problems such as water absorption and hot water penetration of gypsum board face paper that do not meet the requirements, so as to increase product competitiveness and enrich Types, Effects of Pollution Reduction

Active Publication Date: 2017-12-08
山西强伟纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the performance of the gypsum board face protection paper in the prior art does not meet the requirements such as water absorption and hot water penetration, and provides a production process for the upper and lower paper of the coated paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] Embodiment, produce paper test data on coated paper

[0040] 1. Test items

[0041] Production of coated paper paper.

[0042] 2. Test process

[0043] 1. Slurry pretreatment

[0044] OCC production process parameters: Raw material ratio of 100% national waste, controlled long-short fiber classification quality ratio is 6:4, heat dispersion temperature 100-105 ℃, disc grinding gap 0.15mm, beating degree after disc grinding is controlled at 40± 2°SR is reserved, and other processes remain unchanged.

[0045] 2. Papermaking

[0046] Wet end chemistry introduces ASA sizing agent on the basis of existing chemicals, and adds it after the pulping pump, the addition amount is 1.5→2.0→2.5kg / ton of paper; the surface layer concentration of glue starch is 5%→4%→3%, The concentration of the bottom layer is 3%→2%→1%; the water absorption of the paper is controlled to be ≤37g / ㎡ on the front side and 35-45g / ㎡ on the back side, and the hot water penetration is 1200-1500s.

[004...

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PUM

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Abstract

The invention discloses a laminating paper feeding and discharging production process and belongs to the technical field of production of laminating paper. The problem in the prior art that the water absorption, hot water permeability and other performances of gypsum board protective paper cannot meet the requirements can be solved. The process comprises a pulp grinding section, a pulping section and a papermaking section, wherein the pulp grinding section of the laminating paper discharging comprises the steps of pulp grinding on a deinked pulp production line and pulp grinding on an OCC production line; the pulping section of the laminating paper discharging comprises the steps of pulp on the deinked pulp production line and pulping on the OCC production line; the web section during laminating paper feeding adopts a three-layer net with the surface, core and bottom; and the web section during laminating paper discharging adopts a four-layer net with the surface, lining, core and bottom. According to the process disclosed by the invention, the investment is saved, the energy is saved, and the pollution is alleviated.

Description

technical field [0001] The invention belongs to the technical field of film-coated paper production, and in particular relates to a production process for upper and lower paper of film-coated paper. Background technique [0002] Paper-faced gypsum board is a new type of ceiling decoration material that is widely used at present. It has the advantages of light weight, fire prevention, shock resistance, thermal insulation, and good processing performance. It is also convenient for construction, good in disassembly and assembly, and good in decoration. The usable area of ​​the building can be increased. As the construction industry continues to grow and people demand rich decorative styles, the demand for plasterboard is also increasing. [0003] With the continuous enrichment of market demand, a kind of film-coated gypsum board has appeared for ceiling decoration, that is, the surface of the gypsum board is covered with a layer of PVC film, which improves the performance of t...

Claims

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Application Information

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IPC IPC(8): D21C5/02D21D1/30D21D5/02D21H15/02D21H11/14D21H17/66D21H19/10D21H21/10D21H21/16D21H21/14D21F11/00
CPCD21C5/02D21C5/025D21C5/027D21D1/306D21D5/02D21F11/00D21H11/14D21H15/02D21H17/66D21H19/10D21H21/10D21H21/14D21H21/16Y02W30/64
Inventor 李伟
Owner 山西强伟纸业有限公司