Environment-friendly ecological board and production process thereof

Abstract

The invention provides an environment-friendly ecological board and a production process thereof. The production process comprises: performing hot-press gluing on one side of an artificial board and impregnated bond paper into an impregnated bond paper decorative artificial board, and cooling the impregnated bond paper decorative artificial board till a room temperature for later use, wherein hot pressing is performed for 5-15 minutes at a temperature ranging from 100 to 150 DEG C and under a pressure ranging from 0.3 to 1.5MPa; coating both sides of a substrate with a cold-pressing glue and performing cold pressing on the substrate and the obtained impregnated bond paper decorative artificial board, wherein the cold-pressing glue is a water-based isocyanate adhesive; cold pressing is performed for over 30 minutes under a pressure ranging from 0.1 to 1Mpa; relieving the pressure, and aging for 5 or more hours followed by cutting edges, thereby obtaining the finished environment-friendly ecological board. The invention provides the environment-friendly ecological board that is few in production steps and high in finished product yield and grade rate, and the production process thereof.

Description

【Technical field】 [0001] The invention belongs to the technical field of plate production, and in particular relates to an environmentally friendly ecological plate and a production process thereof. 【Background technique】 [0002] For spliced ​​boards (also known as large core boards) and oriented strand boards (OSB boards) as the substrate, there are uneven defects on the surface of the substrate due to factors such as wood defects, material differences, and dimensional tolerances. To overcome this defect and produce ecological board products with good surface flatness and high grade, the commonly used production process is as follows: Process 1: 1. The double-sided adhesive of the substrate is laminated with a layer of middle board, usually a single board with a thickness of 1.5-2.2mm. 2. If hot-pressing is used for the glue-pressed middle board, the hot-pressed slab needs to be aged for 7-10 days to reduce the hot-pressing stress of the slab. If the cold-pressing method i...

AI Technical Summary

Problems solved by technology

[0004] The outer panel of this process uses technological wood, poplar or eucalyptus. When the outer panel is poplar or eucalyptus, there are uneven defects on the surface. After hot pressing with melamine impregnated paper, this defect will appear on the finished panel. Board surface; when the outer board is made of technical wood, the hot pressing temperature should not exceed 100°C when it is hot-pressed with melamine impregnated paper. Therefore, the brightness of the product board surface is not good; It is bent in a tile shape (the bending degree of the small-diameter plate is greater), and the thickness tolerance and density difference of each core plate will also cause step marks and wavy lines on the surface of the substrate during hot pressing

Although this process optimizes the production process, it is still unable to overcome the common defects such as wavy lines, carbonization, bright spots, and bubbles on the surface of the ecological board. In addition, after the middle board and the core board are hot-pressed, the substrate blank needs to be aged to eliminate the hot-pressing stress. longer time

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