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Low-gram weight white impregnated bond paper and producing method thereof

A technology of impregnated adhesive film paper and production method, which is applied in the directions of paper, papermaking, special paper, etc., can solve the problems of bottom penetration, poor pollution resistance, poor quality of low grammage, high grammage and high cost of impregnated adhesive film paper, and achieves enhanced Contamination resistance, cost reduction effect

Inactive Publication Date: 2007-03-21
张志利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of high cost and low quality of impregnated film paper with high grammage, the present invention will provide low grammage white impregnated film paper and its production method, in order to reduce production cost by using low grammage base paper, and in It is not easy to produce quality problems such as bottom penetration and poor pollution resistance in secondary processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare materials: mix titanium dioxide and adhesive B in a weight ratio of 1:10 to obtain titanium dioxide mixed adhesive B; mix titanium dioxide and adhesive A in a weight ratio of 1:10 to obtain titanium dioxide mixed adhesive A;

[0031] Dipping: the gram weight is 60g / m 2 The base paper is immersed in a section of dipping tank filled with adhesive (urea-formaldehyde resin);

[0032] Spraying: The dipped base paper is pulled into the second spraying section, and the titanium dioxide mixed glue B is sprayed on one or both sides of the dipped base paper;

[0033] Drying: The base paper after spraying the mixed glue B enters the first drying oven for drying;

[0034] Coating: The dried base paper enters the three-stage coating section, and the titanium dioxide mixed glue A is coated on both sides of the base paper after spraying the titanium dioxide mixed glue B;

[0035] Re-drying: the base paper coated with glue A enters the second drying oven for drying;

[0036]...

Embodiment 2

[0041] Except that titanium dioxide mixed adhesive B is mixed with titanium dioxide and adhesive B at a weight ratio of 1:8, other same

[0042] Example 1.

Embodiment 3

[0044] Except that titanium dioxide mixed adhesive B is mixed with titanium dioxide and adhesive B at a weight ratio of 1:15, the other same

[0045] Example 1.

[0046] The low grammage white impregnated film paper produced by the method of above-mentioned embodiment 1 to embodiment 3 is characterized in that: the base material of this paper is low grammage 60g / m 2 base paper, the substrate is impregnated with urea-formaldehyde resin, one or both sides are sprayed with a layer of titanium dioxide mixed glue B, and then coated with a layer of titanium dioxide mixed glue A on both sides.

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PUM

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Abstract

The present invention relates to a production method of titanium white paper. Said production method includes the following steps: mixing the titanium white powder and adhesive B to obtain titanium white powder mixed adhesive B; mixing the titanium white powder and adhesive A to obtain titanium white powder mixed adhesive A; impregnating base paper with adhesive; spray-coating titanium white powder mixed adhesive B on one side or two sides of base paper impregnated with adhesive; drying said base paper; then spray-coating the titanium white powder mixed adhesive A on two sides of the base paper coated with titanium white powder mixed adhesive B; drying said base paper; cooling and cutting so as to obtain the invented low-gum white impregnated adhesive film paper finished product.

Description

technical field [0001] The invention relates to a low-gram-weight white impregnated film paper used in the wood-based panel industry and a production method thereof. Background technique [0002] At present, in the production of impregnated film paper, the demand for white impregnated paper is large. One-stage or two-stage impregnated paper is used in the production, and it is processed with melamine-formaldehyde tree or urea-formaldehyde resin, and the finished product is used for secondary veneer production. However, if the white decorative base paper with high grammage is used, the cost is high and it is not easy to penetrate during production, while the white decorative base paper with low grammage will easily produce quality problems such as bottom penetration and poor pollution resistance in the secondary pressing production. Contents of the invention [0003] In order to solve the problems of high cost and low quality of impregnated film paper with high grammage, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/22D21H19/38D21H19/62
Inventor 张志利
Owner 张志利
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