Preparation method of high-strength veneer board for packaging box

Abstract

The invention mainly relates to the technical field of machining of artificial boards and discloses a preparation method of a high-strength veneer board for a packaging box. The preparation method comprises the following steps: heating, immersing, freezing, gluing, carrying out hot pressing and trimming. The method is simple; the strength of the obtained high-strength veneer board for the packaging box is remarkably improved and the bearing capability reaches 5173kg; a wood core veneer is sufficiently heated and dried and the moisture content is lower than that of conventional wood, so that an adsorption capability of the core veneer on a subsequent treatment solution can be improved and the production efficiency is improved; a face veneer is heated and subjected to heat insulation, so that the weather resistance and wearing resistance of the face veneer can be improved and the service life of the veneer board is prolonged; the core veneer is a poplar board and has the advantages of wide raw material source, low price and strong buffering capability; the face veneer is an ecological resin board added with sodium carbonate and the face veneer is safe and has no toxin and has strong bearing capability and buffering capability, so that the durability of the veneer board is improved and the service life is prolonged; the veneer board can be recycled and repeatedly utilized so that the environment is protected and the cost is saved.

Description

technical field [0001] The invention mainly relates to the technical field of wood-based panel processing, in particular to a method for preparing plywood for high-strength packaging boxes. Background technique [0002] The packaging box needs to carry various goods during use, so it has high requirements for the packaging box, especially the bottom plate. It must be economical and durable, especially capable of carrying large weight and corrosion resistance. The existing patent Document CN103963110 A discloses a special plywood for containers, which is composed of multi-layer veneers bonded and pressed, and discloses that it includes a top panel, a middle panel and a bottom panel. The top panel is composed of one layer of plywood and five layers of wood veneer The middle board is composed of thirteen layers of wood veneers, the bottom board is made of seven layers of wood veneers, and the top board is composed of one layer of plywood, five layers of wood veneers and seven l...

AI Technical Summary

Problems solved by technology

[0002] The packaging box needs to carry various goods during use, so it has high requirements for the packaging box, especially the bottom plate. It must be economical and durable, especially capable of carrying large weight and corrosion resistance. The existing patent Document CN103963110 A discloses a special plywood for containers, which is composed of multi-layer veneers bonded and pressed, and discloses that it includes a top panel, a middle panel and a bottom panel. The top panel is composed of one layer of plywood and five layers of wood veneer The middle board is composed of thirteen layers of wood veneers, the bottom board is made of seven layers of wood veneers, and the top board is composed of one layer of plywood, five layers of wood veneers and seven layers of bottom boards. There is also a layer of buffer layer between the plywood veneers, which only discloses the layered structure of the plywood. Simply increasing the number of veneer layers in the plywood, from the traditional three-ply board and five-ply board to the thirteen-ply board, does not make sense from the real meaning. To save wood and protect the environment