Plywood adhesive and gluing production process thereof

A production process and adhesive technology, applied in the direction of adhesive types, hydrocarbon copolymer adhesives, manufacturing tools, etc., can solve the problems of long manufacturing cycle, moldy adhesive, long working hours, etc., to simplify manufacturing Steps to achieve the effect of preventing mildew and shortening the manufacturing cycle

Active Publication Date: 2021-10-26
ANHUI KOJO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, in the prior art, the waterproofing and anti-mildew modification of the veneer used to make plywood are two relatively independent steps, and the man-hours spent on the anti-mildew treatment are relatively long, so there are two shortcomings. First, the manufacturing steps are cumbersome and the manufacturing cycle is relatively long, and second, the adhesive will still be moldy during use.

Method used

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  • Plywood adhesive and gluing production process thereof
  • Plywood adhesive and gluing production process thereof
  • Plywood adhesive and gluing production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: Reference figure 1 The adhesive for plywood shown is a roll material, including a main body layer 100 and a functional layer 200 covering the main body layer 100 . In this embodiment, the functional layer 200 covers one surface of the main body layer 100 , while in some other embodiments, the functional layer 200 may cover two surfaces of the main body layer 100 .

[0045] The main body layer 100 is any substrate-free hot-melt adhesive film in the prior art. Preferably, the main body layer 100 is a substrate-free EVA adhesive film or a substrate-free PA adhesive film. For example, no substrate type EVA film.

[0046] The functional layer 200 is an antifungal agent film. Specifically, the functional layer 200 is formed by spraying or rolling a microemulsion type antifungal agent (such as an isothiazolinone microemulsion) on the unrolled main body layer 100, and then curing through a low-temperature thermal tunnel, For example, the passage time of infrared p...

Embodiment 2

[0054] Embodiment 2: The difference between Embodiment 2 and Embodiment 1 is that the thickness of the functional layer 200 is 0.080 mm. The thickness of the veneer 900 bonded in this embodiment is 2.0 mm, and the veneer is rotary-cut fast-growing poplar veneer. The adhesive for plywood in this embodiment needs to process the veneer before gluing and bonding. In the step of veneer treatment, the following stages are sequentially included in the order of production:

[0055] S1. In the veneer drying stage, hot-press drying dries the veneer 900 to a moisture content of 1% to 2%;

[0056] S2. In the wet treatment stage of the veneer surface, the two surfaces of the veneer 900 are wetted by spraying, and the water consumption for the wet treatment of the veneer surface is 43g / ㎡~45g / ㎡ (amount for one side).

[0057] Wet treatment method reference in the wet treatment stage of the veneer surface figure 2 As shown, the veneer 900 is placed on the mesh belt conveyor 300 to feed, an...

Embodiment 3

[0065] Embodiment 3: The difference between Embodiment 3 and Embodiment 1 is that the thickness of the functional layer 200 is 0.080 mm. The thickness of the veneer 900 bonded in this embodiment is 2.0 mm, and the veneer is rotary-cut fast-growing poplar veneer. The adhesive for plywood in this embodiment needs to process the veneer 900 before gluing and bonding. In the step of veneer processing, the following stages are sequentially included in the production sequence:

[0066] S1. In the veneer drying stage, single-sided hot-press drying dries the veneer 900 to a moisture content of 1% to 2%. The heated surface is surface A, the other surface of the veneer 900 is surface B, and the average moisture content of the side A is is 1%, and the average moisture content of side B is 2%;

[0067] S2. During the wet treatment stage of the veneer surface, the side B of the veneer 900 is wetted by roller coating or spraying, and the water consumption for the wet treatment of the veneer...

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Abstract

The embodiment of the invention discloses a plywood adhesive and a gluing production process thereof. The adhesive is a coiled material and comprises a main body layer, wherein the main body layer is a hot melt adhesive film, the plywood adhesive further comprises a functional layer covering the main body layer, and the functional layer is a mildew preventive film. The main body layer and the functional layer are compounded in a mechanical form, so that mildew-proof treatment can be completed in a hot-press gluing process of a veneer, manufacturing steps are simplified to a certain extent, and a manufacturing period is shortened; and meanwhile, the functional layer has relatively high mildew preventive concentrations at joints of the upper and lower parts of the functional layer and the veneer, so that mildew prevention of an adhesive layer can be realized to a certain extent.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an adhesive for plywood production, and also relates to a gluing production process of the adhesive. Background technique [0002] Furniture used in some occasions, such as kitchens, bathrooms, balconies, etc., has relatively high waterproof and mildew-proof requirements for the plywood used to make it. [0003] In order to improve the waterproof performance of plywood, methods of modifying and improving adhesives are often used in the prior art. For example, Chinese patent CN110643312A "Preparation method of an environment-friendly phenolic adhesive", which uses formaldehyde aqueous solution and alkaline solution to modify the phenolic adhesive to obtain a modification with good boiling resistance and low formaldehyde release. Phenolic adhesive. [0004] In order to improve the anti-mold performance of plywood, the means of impregnating and soaking the veneer with a water-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27K3/08B27K3/12B27K3/34B27K5/00C09J125/14
CPCB27D1/04B27K3/0242B27K3/08B27K3/12B27K3/34B27K5/007B27K5/0085C09J125/14B27K2240/20B27K2240/70
Inventor 卢俊叶润露迟正林彭冲黎健冰康彦辉
Owner ANHUI KOJO NEW MATERIAL TECH CO LTD
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