Novel method for effectively eliminating static electricity in film coating industry

Abstract

The invention discloses a novel method for effectively eliminating static electricity in the film coating industry and belongs to the field of antistatic technology. The method comprises the following steps of: 1) mixing 5 to 10 parts of antistatic solution and 90 to 95 parts of organic diluting solvent (ethanol) to prepare static liquid; 2) forming a dip coating device by using a guide roller, acoating rubber roller, a circulative liquid adding device, a motor and a control electric box and arranging the dip coating device between an edge trimmer and a baking oven of a film coating device; 3) adding the static liquid into a liquid storage groove of the circulative liquid adding device and coating the static liquid on a laminating pouch film through the dip coating device; and 4) drying the coating surface of the laminating pouch film on which the static liquid is coated through a drying machine and conveying the dried laminating pouch film to a specified position for rolling. The method has the advantages of advanced process, simple device, good antistatic effect and capability of improving the workability and the physical and mechanical properties of a product.

Description

technical field [0001] The invention relates to a device and method for eliminating static electricity, in particular to a method for eliminating static electricity during transportation in the coating film industry. Background technique [0002] The generation of static electricity is related to many factors. The film material (card protection film) used in the coating film industry is very prone to static electricity. If the static electricity cannot be eliminated in time, it will not only easily affect the quality and performance of the product, but even fail to produce normally. At present, the coating film industry adopts the following ways to eliminate static electricity: a. Static elimination rod: the effect of instantaneous static electricity removal is obvious. Once the subsequent slitting and cutting into sheets will generate relatively large static electricity, it can only be used to prevent production Medium safety hazard. The cost is too high, and the desired e...

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Problems solved by technology

[0002] The generation of static electricity is related to many factors. The thin film material (card protection film) used in the coating industry is very prone to static electricity. If the static electricity cannot be eliminated in time, it will not only easily affect the quality and performance of the product, but even fail to produce normally.

At present, the coating film industry adopts the following ways to eliminate static electricity: a. Static elimination rod: the instant static electricity removal effect is obvious. Once the subsequent cutting and cutting into sheets will generate relatively large static electricity, it can only be used to prevent production medium security risk

The cost is too high, and the desired effect cannot be obtained; b. Static rope: once popular in the market, but it is basically ineffective for the coating industry; c. Antistatic particles: added to EVA through melt extrusion, the most effective on the surface of EVA The outer layer forms a molecular layer of ASA, which has an obvious effect of removing static electricity, but restrains the application performance of the coating film, and the peeling strength is greatly reduced, which directly leads to unqualified products; d. Static eliminator: It has the same effect as the static eliminator rod, but the cost is high , the power consumption is large, and the effect of eliminating static electricity is not ideal;

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