Preparation method of plywood for full-bamboo or bamboo wood composite container

Abstract

The invention provides a method for preparing a plywood for a full-bamboo or bamboo-wood composite container, which belongs to the field of containers. By adopting automatic glue penetration on a bamboo mat rigid rolling laminator and bamboo shades elastic needle rolling laminator, instead of directly soaking materials such as veneers, bamboo mats and bamboo shades for manufacturing plates of thecontainers in a phenolic resin solution, the method not only makes glue solution penetrated to the inside of the materials and improves the meandering strength of the materials, but also has small damage to the environmental protection and the human body. As the method has simple process, the temperature is always maintained within a certain range, the energy loss is greatly reduced, and the production cost is greatly reduced. The method and the equipment can manufacture a plurality of pieces of plywoods once and greatly improve the working efficiency. The full-bamboo products have smooth andwear resistant surface of the outer layer, and can be widely applied to manufacturing case plates of the containers.

Description

Preparation method of plywood for whole bamboo or bamboo-wood composite container technical field The invention relates to a method for preparing a container board, in particular to a method for preparing a container board by using whole bamboo or combining bamboo and wood, and belongs to the field of containers. Background technique When using bamboo mats, bamboo curtains or wooden veneers to make plywood for containers, the traditional method is one-time molding and one-time hot pressing. This method is usually to pre-treat the veneer, bamboo mats and bamboo curtains to a certain amount of moisture. , immerse the veneer, bamboo mat, and bamboo curtain in the phenolic resin glue pool for a few minutes, take it out, hang it vertically, let it drip off the excess glue on the surface, dry it, and then carry out blank formation, cold pressing, and heating Pressing and other processes to make finished products. Such as the "material composition and production method of plywoo...

AI Technical Summary

Problems solved by technology

Its shortcoming is: because it takes a long time to drip off the excess phenolic resin glue, it will cause serious pollution to the production environment, generally not less than 2 hours, if it is further dried to a certain moisture content, it will need more time. For a long time, and phenolic resin is more polluting to the environment, thus causing harm to the human body

Also have the hot-pressing method that adopts hot-in and hot-out to reduce energy consumption, as " bamboo mat bamboo curtain plywood hot-in and hot-out production technology " (patent application number: 98112652.9) announced by the Chinese Patent Office, it presses the surface bamboo mat (one-time heat Pressing) and the second hot pressing after billet assembly adopt the hot pressing time of 135-150 ℃, which has a certain effect on saving heat. However, this technology still uses the method of dipping and dropping glue, which has no improvement on environmental pollution and human damage , and this method is to make the surface of the product plate smooth, and the film paper is still hot-pressed on the surface of the bamboo mat

The adhesive film is also impregnated with kraft paper, which further aggravates the damage to the environment and human body.

At the same time, kraft paper also needs to be consumed

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