Non-formaldehyde recombined laminated wood and manufacture method thereof

A manufacturing method and technology of recombined wood, applied in the direction of manufacturing tools, wood processing appliances, and joining of wooden veneers, can solve the problems of less research and production of isocyanate, achieve good wettability and permeability, reduce aging and Pre-pressing process, the effect of lowering the hot-pressing temperature

Inactive Publication Date: 2016-07-27
LANGFANG HUARI FURNITURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is less research and production of isocyanate in the application of recombinant lumber

Method used

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  • Non-formaldehyde recombined laminated wood and manufacture method thereof
  • Non-formaldehyde recombined laminated wood and manufacture method thereof
  • Non-formaldehyde recombined laminated wood and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Preparation,

[0055] The material preparation process includes: material selection, sawing, defrosting, carbonization, drying, dipping, drying, hot pressing, sawing and other processes, which belong to the prior art. Through the above-mentioned process, bamboo or wood will be processed into recombined wood, and it will be sawn into two kinds of recombined wood veneer strips with a width of 20 mm, a thickness of 5 mm, and a length of 2600 mm and 1300 mm (such as figure 1 shown).

[0056] (2) Reconstructed veneer strip diameter surface sizing

[0057] Glue is applied on the diameter surface of the recombined wood veneer, using the method of glue sizing, the adhesive used is a water-based polymer isocyanate adhesive, and the amount of sizing is controlled at 100 g / m2-105 g / m2 sizing surface Layer, apply a quantitative amount of water-based polymer isocyanate adhesive evenly to the radial surface of the recombined wood veneer (such as figure 2 shown).

[0058] (3)...

Embodiment 2

[0073] (1) Preparation,

[0074] The material preparation process includes: material selection, sawing, defrosting, carbonization, drying, dipping, drying, hot pressing, sawing and other processes, which belong to the prior art. Through the above-mentioned process, bamboo or wood will be processed into recombined timber, and it will be sawn into a chord surface width of 20mm, a diameter surface thickness of 5mm, and a length of 2600mm specification recombined timber veneer (such as figure 1 shown).

[0075] (2) Reconstructed veneer strip diameter surface sizing

[0076] (2) Reconstructed veneer strip diameter surface sizing

[0077] Glue is applied on the diameter surface of the recombined wood veneer, and the roller coating method is adopted. The adhesive used is polyvinyl acetate emulsion adhesive, and the amount of glue applied is controlled at 180 g / m2-200 g / m2 on the sizing surface Layer, the quantitative polyvinyl acetate emulsion adhesive is evenly coated on the radi...

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Abstract

The invention relates to non-formaldehyde recombined laminated wood and a manufacture method thereof. The non-formaldehyde recombined laminated wood is formed by a scrimber veneer strip and an adhesive layer. The scrimber veneer strip is formed through diametral plane splicing and chord plane gluing, the scrimber veneer strip comprises recombination bamboo and recombination wood, during the diametral plane splicing process, the adhesive arranged on the adhesive layer is a polyvinyl acetate emulsion adhesive or an aqueous high-molecular isocyanate adhesive, and during the chord plane gluing process, the adhesive arranged on the adhesive layer is an isocyanate adhesive. With respect to the non-formaldehyde recombined laminated wood, non-aldehyde adhesives are employed, during the diametral plane splicing process, the polyvinyl acetate emulsion adhesive (white emulsion) or the aqueous high-molecular isocyanate adhesive is employed, and during the chord plane gluing process, the isocyanate adhesive is employed, the formaldehyde release amount of the non-formaldehyde recombined laminated wood is far lower than 1.5 mg/L which is prescribed in the national standard E1 grade, and the non-formaldehyde aim is achieved.

Description

technical field [0001] The invention belongs to the technical field of recombined laminated timber and its manufacturing technology in the wood-based panel industry, and relates to an formaldehyde-free recombined laminated timber and a manufacturing method thereof. Background technique [0002] The recombined wood uses small-diameter fast-growing forest wood or bamboo as the main raw material. On the premise of maintaining the original wood fiber arrangement direction and retaining the basic properties of wood / bamboo, it solves the defects of wood anisotropy and bamboo material unevenness. Design and A new type of wood and bamboo multi-component composite structure material developed is an important technical means for the efficient and value-added utilization of low-quality wood and bamboo materials. Mainly used in flooring, furniture, kitchen and bathroom supplies such as chopping boards, tea sets and high-end decorative materials such as sliced ​​recombined wood veneer. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04C09J131/04C09J175/00
Inventor 周旭恩张亚慧刘亚娟陈凤义
Owner LANGFANG HUARI FURNITURE CO LTD
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