Gluing method facilitating plastic film or sheet adhesion exhaustion and application

A technology of plastic film and plastic sheet, applied in the direction of chemical instruments and methods, layered products, lamination devices, etc., can solve the problems of affecting the use effect, low gas release rate, poor air permeability, etc., and achieve the effect of convenient production

Inactive Publication Date: 2017-10-13
佛山市南海赋盈塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to save material consumption, foaming technology is mostly used in the production of plastic boards, and cheap boards with light weight and high rigidity are obtained. The board structure is composed of numerous cells, and the cells are filled with the gas generated by the foaming agent. Moreover, there is a certain gas pressure, so most boards will continuously release gas. When a plastic sheet or film with poor air permeability and low gas release rate is pasted on the surface, gas accumulation will form on the pasted surface. When the local adhesion is low, or when the adhesive is affected by chemistry and physics (such as temperature rise), the gas begins to gather and bulge here. If there is obvious accumulation, the pressure will double and the bubbling will accelerate. Grow up, especially those with high pressure inside some foam boards, such as polystyrene advertising foam board (KT board), PVC foam board (Snow Fluorine board), cross-linked PE foam board (Furong board), paste plastic sheets / The problem of foaming after the film is very common, which seriously affects the use effect

Method used

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  • Gluing method facilitating plastic film or sheet adhesion exhaustion and application
  • Gluing method facilitating plastic film or sheet adhesion exhaustion and application
  • Gluing method facilitating plastic film or sheet adhesion exhaustion and application

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-Figure 3 As shown, the present invention is a kind of gluing method that is beneficial to plastic film or sheet adhesive degassing, and it adopts the mode of dispersed gluing, and viscose is dotted and / or massive and / or linear distribution, makes viscose The joint surface forms a joint-free glue-free channel 1, and the glue-free channel has at least one exhaust port 2; so that during bonding, excess gas is discharged along the glue-free channel under extrusion, and the exhaust port of the channel Keep it open, even if the plastic sheet or plastic film is laminated with PS foam board, PVC foam board, EVA foam board, PE foam board and other boards that release gas for a long time with a large gas content, the board and plastic sheet or plastic The gas between the membranes cannot accumulate, and it can be discharged in time to completely solve the problem of bubbling, which greatly facilitates the production. In this embodiment, the viscose adopts the f...

Embodiment 2

[0029] Such as Figure 4 As shown, in this embodiment, the viscose is coated in a block-like manner, and there is a gap between two adjacent blocks of viscose, so that multiple layers are formed between the plastic film or plastic sheet and the ply as the base material. The gas channels 6 that connect with each other. The blocky viscose 7 is a tapered structure with a narrow top and a wide bottom, which increases the area of ​​the gas passage and makes the exhaust more fluent.

Embodiment 3

[0031] In this embodiment, the viscose is compounded by point coating and block coating, between two adjacent point viscose, between two block viscose or between point viscose and block viscose There are gaps, so that a plurality of intersecting and communicating gas passages are formed between the plastic film or plastic sheet and the plate layer as the base material.

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Abstract

The invention discloses a glue coating method and its application which are beneficial to the bonding and exhausting of plastic films or sheets. distribution, so that the bonding surface forms a glue-free channel, and the glue-free channel has at least one vent. The invention is easy to operate, so that the gas between the plate and the film layer cannot be accumulated and discharged in time, the problem of bubbling is completely solved, and the production is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of viscose composite pasting, and more specifically relates to a method for applying glue to plastic films or sheets that can eliminate air trapping and unclear discharge during pasting. Background technique [0002] At present, in order to save material consumption, foaming technology is mostly used in the production of plastic boards, and cheap boards with light weight and high rigidity are obtained. The board structure is composed of numerous cells, and the cells are filled with the gas generated by the foaming agent. Moreover, there is a certain gas pressure, so most boards will continuously release gas. When a plastic sheet or film with poor air permeability and low gas release rate is pasted on the surface, gas accumulation will form on the pasted surface. When the local adhesion is low, or when the adhesive is affected by chemistry and physics (such as temperature rise), the gas begins to gather and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B37/00
CPCB32B37/1284B32B37/003
Inventor 孙荣秋孙敬麟孙敬钟孙敬贤
Owner 佛山市南海赋盈塑料有限公司
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