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Vertical recombined hot-pressed plywood and its production method

A production method and plywood technology, applied in chemical instruments and methods, layered products, bonding of wooden veneers, etc., can solve the problems of low product recycling rate, low performance, large waste, etc., and achieve environmental protection resource recycling The effect of utilization, not easy to delaminate and degumming, not easy to deform

Inactive Publication Date: 2011-12-28
陈琳
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Problems solved by technology

Such a "waste-to-new process" does not change the essence of the original plywood layer formation method, so the gluing condition of the original plywood veneer layer combination will still cause "delamination" and "peeling" phenomena, so that "waste The quality and performance of the "new" boards are not high, and the performance is much lower than the quality of the original plywood. It is a low-grade product with low product recycling rate and huge waste.

Method used

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  • Vertical recombined hot-pressed plywood and its production method
  • Vertical recombined hot-pressed plywood and its production method
  • Vertical recombined hot-pressed plywood and its production method

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with specific embodiments.

[0027] A vertical recombined heat-pressed plywood of the present invention includes a surface layer, a core layer and a bottom layer, and the core layer includes several layers of single layers that are superimposed and pasted together (the number of single layers is generally three or more odd numbers), The single layer is composed of side-by-side long strips pasted together. The long strips are formed by cutting waste plywood along the longitudinal direction. All of the same thickness, the strips in adjacent monolayers are perpendicular to each other.

[0028] The long strips are made by cutting the scraps of old veneer plywood. The newly formed plywood changes the original way of laying along the veneer layer, and lays it in a vertical way with the new veneer layer. The plywood is not easy to deform, delaminate and degumming. The quality of the board is good, ...

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Abstract

Vertical recombined hot-pressed plywood and its production method, the core layer of the plywood is a plurality of single layers superimposed and pasted together, and the single layers are all composed of side-by-side long strips pasted together, and the long strips are cut along the longitudinal direction. Formed by plywood, the veneer layers of the long strips in a single layer are all perpendicular to the surface layer and the bottom layer, and the angles between the strips in adjacent single layers are α, 0°

Description

technical field [0001] The invention relates to plywood and its production process, in particular to cutting and assembling waste layered plywood into new vertical recombined hot-pressed plywood and a production method of the vertical plywood. Background technique [0002] At present, plywood and plywood profiles are widely used in living and decorative buildings. Their production methods are to turn logs into veneers through rotary cutting, and then the veneers are glued, layered, paved, formed into blanks, and hot-pressed into layered plywood, especially There are a huge number of wooden formwork pressed by veneer in building formwork. Due to cost factors, the more veneer layers, the more glue manufacturers use for bonding, the more complicated the production process steps, and the higher the production cost. Therefore, a large amount of low-cost glue is used in building formwork, which also causes Existing plywood is very easy to get damp, degumming and layering, and the...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B32B21/13
Inventor 陈琳
Owner 陈琳
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