Method for producing aldehyde-free by wood

A production method and technology of plywood, applied in the direction of joining wooden veneers, manufacturing tools, adhesive application devices, etc., can solve problems that threaten people's health, etc.

Inactive Publication Date: 2007-10-03
戴武兵 +1
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the formaldehyde emission of common plywood on the market can meet the national standard requirements (in 2001, the state issued the "Formaldehyde Release Limits in Interior Decoration Materials Wood-based Panels and Their Products" GB 18580-2001, and the release of free formaldehyde is ≤ 1.5mg/L, can be directly used indoors, decoration materials with free formaldehyde emission ≤ 5.0mg/L must be finished before being used indoors), but there is still a small amount of harmful rele...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing aldehyde-free by wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The tools and equipment used in the present invention are commonly used plywood production equipment, such as cold presses, hot presses, gluing machines, sanding machines, edge sawing machines and the like.

[0014] The material used in the present invention is the middle board, the surface board and the bottom board of any wood species, and the adhesive is vinyl acetate and isocyanate or other formaldehyde-free adhesives or formaldehyde-free rubber powder, colloidal particles and rubber strips.

[0015] The process of the present invention: first adjust the adhesive, that is, mix 10 parts of formaldehyde-free vinyl acetate and 1 part of isocyanate evenly with a mixer with a rotation speed of ≤500 rpm, and the plastic bucket cannot be a lively metal material, but Plastic bucket or stainless steel, and use up the evenly stirred adhesive within one hour, otherwise, scrap the evenly stirred adhesive. Then, process the plywood according to the following steps.

[0016] Fir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A technology for preparing the non-aldehyde plywood without release of free form-aldehyde includes such steps as preparing adhesive, pouring it on a coating machine, coating the adhesive on the surface of veneers, criss-cross overlaying, cold pressing, hot pressing, curing and removing residual edges.

Description

technical field [0001] The invention relates to a production technology of decoration materials and building material plywood, in particular to a production method of formaldehyde-free plywood without free formaldehyde release. Background technique [0002] With the improvement of people's living standards, people have put forward higher requirements for the decoration of their residences, offices, activities and other places, not only requiring beautiful, trendy, natural and concise, but also requiring health and environmental protection. As one of the most common decoration and building materials, plywood is widely used in the market. Most of the formaldehyde emission of common plywood on the market can meet the national standard requirements (in 2001, the state issued the "Formaldehyde Release Limits in Interior Decoration Materials Wood-based Panels and Their Products" GB 18580-2001, and the release of free formaldehyde is ≤ 1.5mg / L, can be directly used indoors, decora...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B27D1/08B27G11/00
Inventor 戴武兵毛伟锋
Owner 戴武兵
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap