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Application process of plant fiber adhesive used for plywood

A plant fiber and adhesive technology, used in adhesive application devices, manufacturing tools, wood processing utensils, etc., can solve the problems of low adhesive force, partial opening and bubbling of plywood finished products, and increase the yield and achieve uniform distribution. , the effect of reducing the amount of sizing

Inactive Publication Date: 2019-10-18
天津缔木博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a kind of application process of the plant fiber adhesive for plywood, to solve the low adhesive force, bubbling and partial opening of the plywood finished product in the process of using the solid plant fiber adhesive for the plywood And other issues

Method used

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  • Application process of plant fiber adhesive used for plywood
  • Application process of plant fiber adhesive used for plywood
  • Application process of plant fiber adhesive used for plywood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Plywood sizing and product performance testing

[0038] 1. Apply liquid glue:

[0039] 2. The single-layer board enters between the two sizing rollers of the four-roller sizing machine, and the liquid glue is evenly applied on the surface. The solid content of the liquid glue is 55%, and the sizing amount is 160g / m 2 , the speed of the sizing roller is 0.5m / s.

[0040] 3. Applying solid glue: the single-layer board after applying liquid glue is transported to the bottom of the solid plant fiber adhesive feeder outlet through the conveyor belt, and a layer of solid plant fiber adhesive is evenly applied on its surface. The amount of glue applied is 20g / m 2 , the speed of the conveyor belt is 0.2m / s.

[0041] 4. Blank assembly: the single-layer panel that has been glued is transported to the lifting table by the conveyor belt, and the stacking of the backplane, core board, and panel is completed in accordance with the glue application sequence.

[0042] Example 1

[...

Embodiment 2

[0055] A kind of application technology of plant fiber adhesive for plywood, comprises gluing process and forming process, gluing process:

[0056] Back panel treatment: Liquid glue is applied to the upper surface of the back panel,

[0057] Panel treatment: Liquid glue is applied to the lower surface of the panel,

[0058] Core board treatment: liquid glue is applied to both sides of the core board, and then solid plant fiber adhesive is evenly applied to the upper side of the core board, and the core boards applied with solid plant fiber adhesive are stacked in sequence;

[0059] The solid content of the liquid glue is 58%, and the sizing amount is 165g / m 2 , the speed of the sizing roller in the four-roller sizing machine 6 is 0.6m / s; the sizing amount of the solid plant fiber adhesive is 25g / m 2 , the speed of the conveyor belt is 0.3m / s.

[0060] Formation process:

[0061] Stack the backboard, core board, and panels from bottom to top to complete the plywood billet ass...

Embodiment 3

[0067] An application process of a plant fiber adhesive for plywood, including a gluing process and a forming process,

[0068] Gluing process:

[0069] Back panel treatment: Liquid glue is applied to the upper surface of the back panel,

[0070] Panel treatment: Liquid glue is applied to the lower surface of the panel,

[0071] Core board treatment: liquid glue is applied to both sides of the core board, and then solid plant fiber adhesive is evenly applied to the upper side of the core board, and the core boards applied with solid plant fiber adhesive are stacked in sequence;

[0072] The solid content of the liquid glue is 60%, and the sizing amount is 180g / m 2 , the speed of the sizing roller in the four-roller sizing machine 6 is 0.8m / s; the sizing amount of the solid plant fiber adhesive is 25g / m 2 , the speed of the conveyor belt is 0.3m / s.

[0073] Formation process:

[0074] Stack the backboard, core board, and panels from bottom to top to complete the plywood bi...

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Abstract

The invention provides an application process of a plant fiber adhesive used for plywood. The application process of the plant fiber adhesive used for the plywood comprises a gluing process and a blank assembling process. In the gluing process, a back board is treated by forming a liquid cavity in the upper surface of the back board, a surface board is treated by forming a liquid cavity in the lower surface of the surface board, and a core board is treated by forming liquid cavities in both sides of the core board; and then, the solid plant fiber adhesive is evenly applied to the upper side ofthe core board, and core boards applied with the solid plant fiber adhesive are sequentially stacked. In the blank assembling process, the back board, the core boards and the surface board are stacked from bottom to top to complete the blank assembling process of the plywood; and then, the procedures of pre-pressing and hot-pressing are conducted to product the plywood. By adoption of the application process of the plant fiber adhesive used for the plywood, the problems that when the solid plant fiber adhesive is used by the plywood, the adhesion force of the finished plywood is low, and bubbling and local glue failures occur are solved.

Description

technical field [0001] The invention belongs to the field of adhesive utilization, and in particular relates to an application process of a plant fiber adhesive for plywood. Background technique [0002] One of the main raw materials for plywood production is adhesives, which are divided into formaldehyde-containing glue and formaldehyde-free glue. At present, the most commonly used aldehyde-containing glue on the market is trialdehyde glue (that is, urea-formaldehyde glue, phenolic glue, melamine glue). Formaldehyde is released and cannot be used indoors. [0003] The plant fiber fiber adhesive is an environmentally friendly adhesive, which can activate the surface of the fiber raw material through a special treatment method, thereby producing an adhesive substance, and finally the raw material is glued into a board under hot pressing conditions. The use of plant fiber adhesives to make plywood can not only solve the problem of interface compatibility and improve the stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27G11/00
CPCB27D1/08B27G11/00
Inventor 马敬环赵祈涵
Owner 天津缔木博科技有限公司