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

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...

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

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