Mildew-proof multi-layer eucalyptus board and production method thereof

A production method and technology for wood boards, which are applied in the joining, coating, wood processing appliances and other directions of wooden veneers, can solve the problems of inability to guarantee product formaldehyde exceeding the standard, uneven sizing, easy deformation of products, etc., and reduce volatility. The effect of formaldehyde, small shrinkage and swell rate, and not easy to crack

Inactive Publication Date: 2020-02-21
广西横县正林木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In the process of product production and application, although the applicant has thought of many technical solutions in the compound urea-formaldehyde resin adhesive, such as adding insect-proof and mildew-proof agents, flame retardants, preservatives, high-temperature resistant agents, etc., he has also overcome the existing problems. Many urea-formaldehyde resin adhesives have the disadvantage of releasing more formaldehyde, but there are still disadvantages in some aspects. For example, during the hot pressing process, sometimes the product is easily deformed when the pressure is not uniform enough, and sometimes the drying process is not uniform enough, and there is a phenomenon of cracking. , some sizing is uneven, and there is no guarantee that the formaldehyde of the product exceeds the standard, and many technical indicators still need to be improved

Method used

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  • Mildew-proof multi-layer eucalyptus board and production method thereof
  • Mildew-proof multi-layer eucalyptus board and production method thereof

Examples

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Embodiment 1

[0042] A method for producing mildew-proof multi-layer eucalyptus wood boards, the production method of the multi-layer boards includes veneer veneer sorting, veneer gluing, three times of cold pressing, three times of hot pressing, second standing for health preservation, dust scraping, sanding, and repairing 1. The step of trimming and pasting panels, characterized in that: before the first cold pressing, trimming, the first hot pressing and the last hot pressing, a layer of anti-mildew curing film is sprayed around and up and down the surface of the slab, Protect the glue from drying too quickly during the hot pressing process, and maintain the internal stress of the multi-layer board. It can also make the urea-formaldehyde glue fully react, so that the strength of the multi-layer board after molding is high, and the volatile formaldehyde is reduced during the user's use. After the third hot pressing, the boards are left to stand for health preservation, sanded and veneered,...

Embodiment 2

[0049] A method for producing mildew-proof multi-layer eucalyptus wood boards, the production method of the multi-layer boards includes veneer veneer sorting, veneer gluing, three times of cold pressing, three times of hot pressing, second standing for health preservation, dust scraping, sanding, and repairing 1. The step of trimming and pasting panels, characterized in that: before the first cold pressing, trimming, the first hot pressing and the last hot pressing, a layer of anti-mildew curing film is sprayed around and up and down the surface of the slab, Protect the glue from drying too quickly during the hot pressing process, and maintain the internal stress of the multi-layer board. It can also make the urea-formaldehyde glue fully react, so that the strength of the multi-layer board after molding is high, and the volatile formaldehyde is reduced during the user's use. After the third hot pressing, the boards are left to stand for health preservation, sanded and veneered,...

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Abstract

The invention provides a mildew-proof multi-layer eucalyptus board and a production method thereof. The production method of the multi-layer eucalyptus board comprises the steps of veneer sheet sorting, sheet gluing, cold pressing, hot pressing, standing preserving and ash scraping, sanding, repairing, side cutting and overlaying. The method is characterized in that before first-time hot pressingand last-time hot pressing, the surface periphery, the upper and the lower of a board blank are sprayed with a layer of mildew-proof curing film, glue in the hot pressing process can be protected andprevented from too fast drying, stress in the multi-layer board can be kept, urea formaldehyde glue is in sufficient and complete reaction, the formed multi-layer board is not prone to going mouldy, in the use process by a user, volatile formaldehyde is reduced, after hot pressing, the board is subjected to standing preserving, sanding and overlaying, and through side sawing packaging, the mildew-proof multi-layer eucalyptus board product can be obtained.

Description

technical field [0001] The invention relates to a multi-layer wood board and a production method thereof, in particular to a mildew-proof multi-layer eucalyptus wood board and a production method thereof. Background technique [0002] Multi-layer wood board is a multi-layer board-like material made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, the fiber directions of adjacent layers of veneers are glued perpendicular to each other. It is made, and the outside is veneered or not veneered according to needs, also known as glued multilayer board. [0003] Multi-layer wood board is one of the commonly used materials for furniture, and it is one of the three major boards of wood-based panels. It can also be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. Usually its surface board and inner board are arranged symmetrically on both sides of the central layer or board core. The slab m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08C09D5/14C09D161/28C09D161/00C09D133/04
CPCB27D1/08C09D5/14C09D133/04C09D161/00C09D161/28C08K13/04C08K5/47
Inventor 陈姗姗
Owner 广西横县正林木业有限公司
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