Method for preparing single-sided hot-melt adhesive-coated aluminum-plated shielding fabric

A hot-melt adhesive, single-sided technology, applied in the direction of coating, adhesive, sputtering coating, etc., can solve the difficulty of mastering the uniformity and adhesion of sputtering coating at the same time, high cutting equipment and technical requirements, and glue application The problem of film wrinkling and scrapping is eliminated, and the surface resistance is uniform in the horizontal and vertical directions, convenient for transportation and storage, and high in production efficiency.

Active Publication Date: 2017-05-31
菏泽天源电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, it is an excellent method to prepare shielding fabrics by sputtering coating, but the development trend of electromagnetic shielding materials is to develop in the direction of ultra-thin thickness, and the thinnest can be 0.003mm. Such materials will cause great difficulties to the subsequent processing procedures. , the glued film is prone to wrinkles and scrapped, which requires extremely high cutting equipment and technology, and it is difficult to control the uniformity and adhesion of the sputtering coating at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing a single-side coated aluminized shielding fabric with hot-melt adhesive, comprising the following steps:

[0026] (1) Choose white polyester cloth with a thickness of 0.015mm as the substrate, unwind the substrate on the coating line and pass through the scratch-free hot-melt adhesive coating head, and coat a layer of hot-melt adhesive on one side, and the film layer is uniform Delicate, extremely high coating accuracy and perfect glue surface effect, the coating machine speed can reach 300 m / min, and the coating accuracy is 15g / m 2 ;

[0027] (2) Place the substrate coated with hot melt adhesive in a vacuum chamber, which adopts a fast and reliable combined high-vacuum pumping system to a negative pressure of 1×10 -3 Pa, has the excellent performance of fast pumping speed, large exhaust volume and high vacuum degree, and then argon gas is introduced into the vacuum chamber to maintain a working vacuum of 1×10 -1 Pa, using magnetron sputtering c...

Embodiment 2

[0033] A method for preparing a single-side coated aluminized shielding fabric with hot-melt adhesive, comprising the following steps:

[0034] (1) Choose a white polyester cloth with a thickness of 0.02mm as the substrate, unwind the substrate on the coating line and pass through the scratch-free hot-melt adhesive coating head, and coat a layer of hot-melt adhesive on one side, and the film layer is uniform Delicate, extremely high coating accuracy and perfect glue surface effect, the coating machine speed can reach 250 m / min, and the coating accuracy is 10g / m 2 ;

[0035] (2) Place the substrate coated with hot-melt adhesive in a vacuum chamber, which adopts a fast and reliable combined high-vacuum pumping system to a negative pressure of 10×10 -3 Pa, has the excellent performance of fast pumping speed, large exhaust volume and high vacuum degree, and then argon gas is introduced into the vacuum chamber to maintain a working vacuum of 2×10 -1Pa, using magnetron sputtering ...

Embodiment 3

[0038] A method for preparing a single-side coated aluminized shielding fabric with hot-melt adhesive, comprising the following steps:

[0039] (1) Choose a white polyester cloth with a thickness of 0.02mm as the substrate, unwind the substrate on the coating line and pass through the scratch-free hot-melt adhesive coating head, and coat a layer of hot-melt adhesive on one side, and the film layer is uniform Delicate, extremely high coating accuracy and perfect glue surface effect, the coating machine speed can reach 350 m / min, and the coating accuracy is 20g / m 2 ;

[0040] (2) Place the substrate coated with hot melt adhesive in a vacuum chamber, which adopts a fast and reliable combined high-vacuum pumping system to a negative pressure of 5×10 -3 Pa, has the excellent performance of fast pumping speed, large exhaust volume and high vacuum degree, and then argon gas is introduced into the vacuum chamber to maintain a working vacuum of 1.5×10 -1 Pa, using magnetron sputterin...

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Abstract

The invention discloses a method for preparing a single-sided hot-melt-adhesive coated aluminum-plated shielding fabric. The method comprises the following steps: unreeling a substrate on a coating line and passing through a non-scratch hot-melt adhesive coating head, and coating a hot-melt adhesive layer on a single side; and putting the hot-melt adhesive-coated substrate in a vacuum chamber, removing air from the vacuum chamber to the negative pressure, then introducing argon into the vacuum chamber, and sputtering an aluminum target by using magnetron sputtering coating equipment, wherein a target source of the magnetron sputtering coating equipment adopts a rectangular planar magnetron target and a coaxial cylindrical magnetron target to form a cylindrical planar magnetron sputtering target. According to the method provided by the invention, the material is coated with the hot-melt adhesive layer on the surface before being not coated with a metal coating layer, and then the surface metal layer is processed so that the hardness of the fabric is improved after the fabric is coated, the probability of wrinkling of the deposited metal layer working procedure is reduced, and the yield of the product is improved.

Description

technical field [0001] The invention belongs to the technical field of shielding material preparation, and in particular relates to a method for preparing a single-sided coated aluminized shielding fabric with hot melt adhesive. Background technique [0002] In the past two decades, the problem caused by the interference of electrical equipment, that is, the so-called electromagnetic radiation, has become a hot issue that people generally pay attention to. Electromagnetic radiation waves are easy to interfere with the surrounding electronic and electrical equipment, resulting in misoperation, Image barrier or sound barrier, but also cause serious social problems such as computer information leakage. At the same time, electromagnetic radiation from common electrical appliances such as televisions, computers, and mobile phones can also cause harm to the human body. In recent years, with the popularization of various electrical appliances, the wide application of electronic co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83C23C14/35C23C14/20C09J7/04
CPCC09J7/21C09J2301/122C09J2301/304C09J2400/263C23C14/205C23C14/3407C23C14/35D06M11/83
Inventor 杨志全曾海军张新民
Owner 菏泽天源电子科技股份有限公司
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