Method for manufacturing primary composite multi-layer wood floor

A production method and technology for solid wood floors, applied in the direction of adhesive types, wood processing appliances, aldehyde/ketone condensation polymer adhesives, etc., can solve the problems of wasting manpower, reducing production efficiency, floor warping, etc. Processing steps, reduced warpage, optimal strength and elasticity

Inactive Publication Date: 2008-12-10
JILIN FOREST IND GRP JINQIAO FLOORING GRP
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  • Application Information

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Problems solved by technology

Another processing method is to paste the surface board on the multi-layer plywood base material to make a floor. The problem in the processing process of the floor produced by this process is that the substrate itself has been hot-pressed once before the surface is pasted. When laying the board, there is a secondary hot pressing of the blanks, which reduces the production efficiency and wastes a lot of glue, water, electricity, steam and manpower. It needs to increase the process to solve it

Method used

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  • Method for manufacturing primary composite multi-layer wood floor
  • Method for manufacturing primary composite multi-layer wood floor

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 , 2 As shown, the production method of one-time composite multi-layer solid wood composite flooring, its specific production method is as follows:

[0022] 1. Preparation of phenolic resin

[0023] ① The ratio of raw materials: phenol: formaldehyde: caustic soda = 1: 2.0: 0.58

[0024] ②Put the melted phenol into the reaction kettle, start the stirring blade, add caustic soda once, cool down, and keep the heat at 40-50°C.

[0025] ③Add formaldehyde (80% of the total amount) once, control the temperature at about 50°C, start timing at 40°C for 50-60 minutes, and keep warm for 1 hour when the temperature rises to 93°C.

[0026] ④ When the viscosity is between 90 and 93°C, start to measure the viscosity. When the viscosity of the liquid is 25±2S / 30°C, add secondary formaldehyde water.

[0027] ⑤ When the temperature reaches 75°C, add secondary caustic soda and c...

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Abstract

The invention relates to a method for manufacturing a composite multi-layer solid wood floor at one time and the floor is veneered by heat pressing dash boards, core boards, central boards and back boards at a time. The method of the invention uses low-value and middle-and-low diameter class crude wood and reasonably processes the high and low quality single boards, thus simplifying the processing procedures of the floor, increasing the processing efficiency, and raising the product quality and stability.

Description

Technical field: [0001] The invention relates to a solid wood composite floor, in particular to a production method for one-time composite multi-layer solid wood floor. Background technique: [0002] There are two traditional processing methods of solid wood composite flooring: one is the processing method of three-layer solid wood composite flooring: first use the surface board with a thickness of more than 3mm, the curtain made of poplar (or pine) wood strips and the spun The floor made of poplar or pine veneer and hot-pressed. The defect of the floor processed by this process is that the quality of the surface board is high, and the thickness must be guaranteed to be above 3mm. Another processing method is to paste the surface board on the multi-layer plywood base material to make a floor. The problem in the processing process of the floor produced by this process is that the substrate itself has been hot-pressed once before the surface is pasted. When laying the board, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M3/04C09J161/06
Inventor 徐树荣于长海宋长春张雁飞殷俊杜芒
Owner JILIN FOREST IND GRP JINQIAO FLOORING GRP
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