Gluing process of finger joint plate

A gluing process and finger-jointed board technology, which is applied in the direction of adhesives, wooden veneer joints, monocarboxylate copolymer adhesives, etc., to achieve the effect of improving the overall quality and reducing the amount of sizing

Inactive Publication Date: 2018-01-12
南宁市森雄木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a gluing process for finger-jointed boards to solve the problems of how to improve the gluing process of finger-joined boards, improve the quality and environmental protection performance of finger-jointed boards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A gluing process for finger-jointed boards, the formaldehyde-free finger-jointed board is when the finger-joined wood chips are finger-joined to 1 / 3 of the state, applying high pressure to the gap between the cooperating saw teeth and grooves of the finger-joined wood chips The adhesive is sprayed and bonded under hot pressing or cold pressing. The viscosity of the adhesive is 5mPa·s, and the adhesive includes the following raw materials in parts by weight: base material: curing agent : curing accelerator: filler: auxiliary material = 1:0.02:0.01:0.04:0.01.

[0020] The base material includes melamine-modified urea-formaldehyde resin, silicone resin, unsaturated polyester, polyvinyl acetate and polyvinyl alcohol.

[0021] The curing agent includes diethylenetriamine and xylylenediamine.

[0022] The curing accelerator is an epoxy resin curing accelerator.

[0023] The filler is wood flour, oxidized starch, and phenolized lignin, and the size of the wood flour should b...

Embodiment 2

[0026] A gluing process for finger-jointed boards, the formaldehyde-free finger-jointed board is when the finger-joined wood chips are finger-joined to 2 / 5, the gap between the cooperating saw teeth and grooves of the finger-joined wood chips is pressed under high pressure The adhesive is sprayed and bonded under hot pressing or cold pressing. The viscosity of the adhesive is 6mPa·s. The adhesive includes the following raw materials in parts by weight: base material: curing agent : curing accelerator: filler: auxiliary material = 1:0.04:0.02:0.05:0.015.

[0027] The base material includes phenolic resin, silicone resin, unsaturated polyester and perchlorethylene.

[0028] The curing agent includes m-phenylenediamine and 120 curing agent.

[0029] The curing accelerator is an epoxy resin curing accelerator.

[0030] The filler is wood powder, oxidized starch, phenolized lignin, zinc oxide powder, kaolin powder, and the size of the wood powder should be such that it can pass t...

Embodiment 3

[0033] A gluing process for finger-jointed boards, the formaldehyde-free finger-jointed board is when the finger-joined wood chips are finger-joined to 1 / 2, the gap between the cooperating saw teeth and grooves of the finger-joined wood chips is pressed under high pressure The adhesive is sprayed and bonded under hot pressing or cold pressing. The viscosity of the adhesive is 7mPa·s. The adhesive includes the following raw materials in parts by weight: base material: curing agent : curing accelerator: filler: auxiliary material = 1:0.06:0.015:0.06:0.02.

[0034] The base material includes melamine-modified urea-formaldehyde resin, epoxy resin, phenolic resin, organic silicon resin, unsaturated polyester, polyvinyl acetate, polyvinyl alcohol, perchlorethylene and polyisobutylene.

[0035] The curing agent includes diethylenetriamine, xylylenediamine, m-phenylenediamine, and 120 curing agent.

[0036] The curing accelerator is an epoxy resin curing accelerator.

[0037] The fi...

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Abstract

The invention discloses a gluing process of a finger joint plate. The finger joint plate is formed in the manner that when 1/3-1/2 of finger jointing of finger joint wood sheets is finished, an adhesive is sprayed to a gap between sawteeth and grooves of the finger joint wood sheets with high pressure, and finger jointing and bonding are carried out under the hot pressing or cold pressing condition; and the gluing process is characterized in that the adhesive comprises the following raw materials, by weight, including a base stock, a curing agent, a curing promoter, a filler and an ingredientbeing 1:(0.02-0.06): (0.01-0.015): (0.04-0.06): (0.01-0.02). The gluing process technology is based on the environmental protection adhesive, and the aims of reducing adhesive consumption and producing the environmental protection finger joint plate are achieved.

Description

【Technical field】 [0001] The invention belongs to the technical field of finger-joint board manufacturing, and in particular relates to a gluing process for finger-joint boards. 【Background technique】 [0002] The finger-joint board is made up of multiple wooden boards, and the upper and lower parts are no longer glued to the plywood. Since the vertical boards adopt a zigzag interface, which is similar to the cross-jointing of the fingers of two hands, it is called a finger-joint board. Finger joint boards are divided into bright teeth and dark teeth. Dark teeth are more difficult to process, but they are also more beautiful; and bright teeth are more prone to unevenness after painting, which is likely to affect the appearance. The harder the wood, the better the finger joint, as it will warp much less and have a nicer pattern. The purpose of finger joint board is the same as that of wood board, but because finger joint board uses much less glue than wood board in the produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/10C09J161/24C09J161/06C09J163/00C09J183/04C09J167/06C09J131/04C09J129/04C09J123/22C09J127/24C09J11/08C09J11/06C09J11/04
Inventor 张定国
Owner 南宁市森雄木业有限公司
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