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Production process of wear-resistant decorative paper

A production process and decorative paper technology, applied to mixers with rotating stirring devices, papermaking, paper, etc., can solve the problems of insufficient wear resistance, large formaldehyde release, and non-environmental protection, and achieve high sealing performance, The effect of good permeability and high fluidity

Active Publication Date: 2018-10-02
成都建丰新材料股份有限公司
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Problems solved by technology

[0003] At present, the decorative paper has good decorative performance after dipping and gluing, but its formaldehyde release is large, which is not environmentally friendly and healthy; and its wear resistance is not high enough, and the surface is not bright enough, which shortens the life of the decorative paper. The definition is not high enough, and the production process is relatively complicated

Method used

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  • Production process of wear-resistant decorative paper
  • Production process of wear-resistant decorative paper
  • Production process of wear-resistant decorative paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Embodiment: the production technology of wear-resistant decorative paper, comprises the following steps:

[0041] 1) Preparation of urea-formaldehyde glue

[0042] a. Preheating: Clean the synthesis tank before preheating, and then preheat after cleaning. The preheating temperature rises by 2°C / min, preheats for 12-15 minutes, and keeps warm for 5 minutes;

[0043] b. Adding formaldehyde: gradually add 48 parts of formaldehyde into the synthesis tank through the feeding port, and stir to adjust the pH;

[0044] c. One-time urea injection: Add 18 parts of urea into the preheated and heat-preserved synthesis tank, the temperature rises at a rate of 1.5-2°C / min, the temperature rises to 64-65°C, slows down the heating, and the temperature rises at a rate of 0.5-1°C / min. Keep warm at 88-92°C for 30 minutes;

[0045] d. Add formic acid: During the stirring process of formaldehyde, add formic acid to adjust to PH4.2-4.8;

[0046] e. Add caustic soda and water: when the wat...

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Abstract

The invention discloses a production process of wear-resistant decorative paper, which comprises the following steps: 1) preparation of urea-formaldehyde glue; 2) preparation of modified triamine glue; 3) unwinding of base paper; 4) pre-wetting; Spraying; 7) Drying and coating; 8) Cutting, inspection and storage; the production process adopted in the present invention is simple, and the operation and control are convenient. The prepared low molar ratio glue is used to form a composite polymer material with white corundum. The special drying curve achieves high gloss, wear resistance and high definition, and the formaldehyde emission of the impregnated paper is ≤0.5, while other properties of the impregnated paper remain unchanged.

Description

technical field [0001] The invention relates to a production process of wear-resistant decorative paper. Background technique [0002] After the veneer paper is impregnated with melamine glue and some additives, it is melamine impregnated paper. And boards (density board, particle board, plywood), after hot pressing of steel plates in hot presses, they become decorative boards. The national standard GB / T28995 requires that the formaldehyde emission of impregnated paper is 1.5mg / L for grade A and 3.0mg / L for grade B. [0003] At present, the decorative paper has good decorative performance after dipping and gluing, but its formaldehyde release is large, which is not environmentally friendly and healthy; and its wear resistance is not high enough, and the surface is not bright enough, which shortens the life of the decorative paper. The definition is not high enough, and the production process is relatively complicated. Contents of the invention [0004] In view of the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/30D21H19/10D21H25/06D21H19/38D21H19/62D21H19/44D21H19/82D21H23/70C09J161/28C08G12/32C08G12/12B01F7/16
CPCC09J161/28D21H19/10D21H19/385D21H19/44D21H19/62D21H19/82D21H23/30D21H23/70D21H25/06C08G12/12C08G12/32B01F27/191B01F27/85
Inventor 彭荣钟和松李加龙杨杰
Owner 成都建丰新材料股份有限公司
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