Formaldehyde-free solid wood composite floor and manufacturing method thereof

A technology of solid wood composite flooring and manufacturing methods, which is applied in the direction of manufacturing tools, wood layered products, and joining of wooden veneers, and can solve the problems of strong permeability, low production efficiency of hot pressing, and large amount of glue coating, etc. Achieve the effects of low temperature and pressure, convenient production arrangement, and less glue coating

Inactive Publication Date: 2017-11-03
兰州科天水性科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above disadvantages, to provide a formaldehyde-free solid wood composite floor and its manufacturing method, which can effectively solve the problem of formaldehyde release in the glue, which is harmful to human health; the filling property of the glue is not good, and the permeability is too strong, which will easily lead to poor gluing , Glue penetration; large amount of glue coating, long assembly and paving time, error-prone; long slab cold pressing time, generally 50-90min, low production efficiency; large slab hot pressing pressure, high temperature , the hot pressing time and holding time are long, the hot pressing production efficiency is low, and the energy consumption is large; the flat button type has a large assembly gap, is easy to deform, and is easy to squeeze and rub to produce noise, etc.

Method used

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  • Formaldehyde-free solid wood composite floor and manufacturing method thereof
  • Formaldehyde-free solid wood composite floor and manufacturing method thereof
  • Formaldehyde-free solid wood composite floor and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Example 1: Production process of plywood base material for 13.4mm solid wood composite floor

[0060] 1) Veneer drying: Use eucalyptus veneers to pick out those that do not meet the requirements (such as decay, bark, large knot holes, etc.), and control the moisture content of the veneer at 5%-14% after drying.

[0061] 2) Veneer sorting: a. Excessive burrs are not allowed, a certain amount of burrs are allowed, and bark is not allowed; b. Decay and mildew are not allowed; c. Uneven thickness is not allowed.

[0062] 3) Veneer splicing: a. Place the tight side (smooth and less cracks) or loose side (rough and more cracks) of the veneer uniformly upwards or downwards, and use hot-melt adhesive lines to splice them into required specifications. b. The head-to-edge veneers need to have no arc at the end, the joints should be tight, and overlapping is not allowed. Problem veneers (uneven thickness, arc-shaped ends, insufficient length, decay, etc.) must be picked out before...

Embodiment 2

[0075] Embodiment 2: 15mm thick solid wood composite floor finished product production process

[0076] 1) Surface layer sorting: a. Moisture content is controlled at 6%-8%. b. The thickness of the surface layer should be uniform, the four sides should be straight, and the surface should be flat and smooth without burrs. c. The surface layer is not allowed to have decay, boreholes, fungal discoloration, garbage pollution, cracks, incompleteness, deformation of the surface layer, etc. d. The sorted surface layer should be trimmed, and the cut size is 1235*175*1.2mm.

[0077] 2) Bottom sorting: a. Moisture content is controlled at 10%-14%. b. The thickness of the bottom layer should be uniform, the four sides should be straight, and the surface should be flat and smooth without burrs. c. The bottom layer is not allowed to have decay, boreholes, fungal discoloration, garbage pollution, cracks, incompleteness, deformation, etc. d. The size of the sorted bottom layer is 1270*12...

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Abstract

The invention discloses a formaldehyde-free solid wood composite floor and a manufacturing method thereof. The formaldehyde-free solid wood composite floor comprises a surface layer, a base material layer and a bottom layer which are arranged from top to bottom. The base material layer is formed by sequentially bonding an upper layer body, a middle layer body and a lower layer body from top to bottom. The upper layer body and the lower layer body are both a two-layer board, and the middle layer body is a three-layer board. The two-layer board is composed of two layers of veneers with perpendicular texture, and the three-layer board is composed of three layers of veneers with perpendicular texture from top to bottom. All the veneers are bonded through YSD851 glue. The invention further provides the manufacturing method of the formaldehyde-free solid wood composite floor. The composite floor is free of formaldehyde and has no harm to human health; the glue is good in filling property, few in applied quantity, high in production efficiency and low in requirement for the hot-press time, temperature and pressure compared with other glue and saves cost; and the glue is long in active period and capable of being used for a long time.

Description

technical field [0001] The invention relates to the technical field of composite floors, in particular to a formaldehyde-free solid wood composite floor and a manufacturing method thereof. Background technique [0002] Solid wood composite flooring is the main floor decoration material for homes, hotels, leisure and entertainment and other places. At present, the production of solid wood composite flooring is mostly made of urea-formaldehyde adhesives, phenolic adhesives or melamine-modified urea-formaldehyde adhesives (hereinafter referred to as "trialdehyde adhesives") hot-pressed and glued together. Formaldehyde can pollute the environment and endanger people's health. Most of the existing adhesives are added with flour to increase the viscosity. The filling performance is average, and it is not easy to fill the unevenness of the wood surface. The glue is highly permeable and easily penetrates the wood to pollute the surface. Contents of the invention [0003] The pur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M3/04B27D1/08B27D1/10E04F15/04B32B3/06B32B7/10B32B21/14B32B21/13B32B37/12B32B37/10B32B37/06B32B37/08
CPCB27M3/04B27D1/08B27D1/10B32B3/06B32B7/10B32B21/13B32B21/14B32B37/06B32B37/08B32B37/10B32B37/1284E04F15/046
Inventor 戴家兵梁长里曾灵郑记国
Owner 兰州科天水性科技有限公司
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