An environment-friendly decorative paper for wood-based panel decoration and a wood-based panel using the environment-friendly decorative paper

An environment-friendly, wood-based panel technology, applied in home decoration, papermaking, special paper, etc., can solve the problem of releasing formaldehyde and VOCs, and achieve the effects of improved dry and wet tensile strength, stable performance, good water absorption and air permeability

Active Publication Date: 2020-05-15
SHENZHEN WEIYE DECORATION GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of environment-friendly decorative paper for wood-based panel decoration, which solves the problem that the existing decorative paper for wood-based panel decoration itself will release formaldehyde and VOCs during use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The environment-friendly decorative paper for wood-based panel facing of the present embodiment is prepared by the following method:

[0033] 1) Get 10 parts by weight of cornstarch and 0.6 parts by weight of glycerol, 1.0 parts by weight of chloroacetic acid, and 0.8 parts by weight of sodium hydroxide, mix evenly, add 2.0 parts by weight of water, fully stir to make a mixture; Add 0.12 parts by weight of epichlorohydrin to the mixture, carry out extrusion reaction with a twin-screw extruder, the screw speed is 350rpm, dry and pulverize the extrudate to obtain modified starch; add water to the modified starch to make mass For the starch dispersion with a fraction of 23%, the water bath is heated to 90°C, stirred to fully gelatinize the starch, and then cooled to room temperature to obtain a modified starch paste;

[0034]2) According to the mass ratio of bleached kraft softwood pulp and bleached kraft hardwood pulp as 6:4, take the raw wood pulp and soak it in water ov...

Embodiment 2

[0040] The environment-friendly decorative paper for wood-based panel facing of the present embodiment is prepared by the following method:

[0041] 1) get 10 parts by weight of cornstarch and 0.5 parts by weight of glycerin, chloroacetic acid of 0.9 parts by weight, sodium hydroxide of 0.7 parts by weight and mix evenly, add the water of 2.05 parts by weight, fully stir and make mixture; Add 0.10 parts by weight of epichlorohydrin to the mixture, carry out extrusion reaction with a twin-screw extruder, the screw speed is 200rpm, dry and pulverize the extrudate to obtain modified starch; add water to the modified starch to make mass For the starch dispersion with a fraction of 20%, the water bath is heated to 90°C, stirred to fully gelatinize the starch, and then cooled to room temperature to obtain a modified starch paste;

[0042] 2) According to the mass ratio of bleached kraft softwood pulp and bleached kraft hardwood pulp of 7:3, take the raw wood pulp and soak it in wate...

Embodiment 3

[0048] The environment-friendly decorative paper for wood-based panel facing of the present embodiment is prepared by the following method:

[0049] 1) get 10 parts by weight of cornstarch and 0.7 parts by weight of glycerin, chloroacetic acid of 1.1 parts by weight, sodium hydroxide of 0.9 parts by weight and mix evenly, add the water of 2.1 parts by weight, fully stir and make mixture; Add 0.13 parts by weight of epichlorohydrin to the mixture, carry out extrusion reaction with a twin-screw extruder, the screw speed is 300rpm, dry and pulverize the extrudate to obtain modified starch; add water to the modified starch to make mass For the starch dispersion with a fraction of 25%, the water bath is heated to 95°C, stirred to fully gelatinize the starch, and then cooled to room temperature to obtain a modified starch paste;

[0050] 2) According to the mass ratio of bleached kraft softwood pulp and bleached kraft hardwood pulp, which is 6:4, take the raw wood pulp and soak it i...

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Abstract

The invention relates to an environment-friendly decorative paper for artificial board facings and an artificial board adopting same. The decorative paper is prepared by the following method: corn starch is mixed with glycerol, chloroacetic acid and sodium hydroxide, the mixture is added with water and epichlorohydrin and squeezed to react, and the extrudate is added with water and heated to be gelatinized, so that a modified starch paste is obtained; after undergoing steeping, beating, moisture balancing and defibering, raw wood pulp is mixed with filler dispersant, retention aid, wet strength agent and the modified starch paste, and the obtained pulp sequentially undergoes forming, pressing and aging, so that a raw paper is obtained; after being ground, soybean meal is added with water and cellulase and undergoes enzymolysis while temperature is kept, and the enzymatic hydrolysate is added with NaOH to react while temperature is kept, so that a soybean protein glue is obtained; and after the soybean protein glue is used for being applied on the raw paper, calendering is carried out, so that the environment-friendly decorative paper is obtained. The environment-friendly decorativepaper does not contain formaldehyde, no formaldehyde is produced and released in the processes of preparation and use as well, the environment-friendly decorative paper has the effect of sealing formaldehyde in an artificial board substrate when hot-pressed to be laminated on the substrate, and therefore the release of formaldehyde in the substrate is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of decorative paper for wood-based panels, in particular to an environment-friendly decorative paper for wood-based panels, and also relates to a wood-based panel using the environment-friendly decorative paper. Background technique [0002] Wood-based panels are made of wood (such as forest residues, branch wood and small-diameter wood) or other non-wood plants, which are first decomposed and then bonded, mainly including plywood, particleboard and fiberboard. my country's forest resources are scarce, and there are relatively few large-diameter high-quality timber, and the area of ​​plantation forests ranks first in the world. The development of wood-based panels not only saves raw timber, but also turns waste into treasure. However, the surface of wood-based panels processed by machinery is rough, poor in water resistance, stain resistance and hardness, unsightly, and will release a large amount of free fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/28D21H17/22C08B31/12C08B30/18D21H21/08D21H27/00B32B21/02B32B21/06B32B29/00B32B37/06B32B37/10
CPCB32B21/02B32B21/06B32B29/00B32B37/06B32B37/10B32B2255/12B32B2255/26B32B2601/00C08B30/18C08B31/12D21H17/22D21H17/28D21H21/08D21H27/00
Inventor 李建州
Owner SHENZHEN WEIYE DECORATION GRP
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