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Mould release membrance preparing equipment

A release film and equipment technology, applied in the field of release film production equipment, can solve the problems of product contamination, product performance, loss, influence, etc., and achieve the effect of excellent resistance to inorganic and organic chemical erosion and stable surface performance.

Inactive Publication Date: 2008-08-06
周伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, one method is to use polytetrafluoroethylene film, and polytetrafluoroethylene film is expensive; another method is to use the process of coating liquid fluorine-containing or silicon-containing surfactant on the surface of the film to manufacture release film, although Its cost is low, but the process has the following defects:
[0003] 1. Due to the existence of liquid surfactant on the surface of the film, there are problems of product pollution and product performance being affected due to the migration of liquid surfactant to the surface of the product during use;
[0004] 2. Since it is the liquid surfactant that plays the role of mold release, the liquid surfactant on the surface of the film is easily lost due to adsorption or wiping by other materials during handling, cutting, storage and use, resulting in a release film Unstable performance

Method used

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  • Mould release membrance preparing equipment
  • Mould release membrance preparing equipment
  • Mould release membrance preparing equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Put a roll of polyester film of a certain size into the unwinding material control chamber, then turn on the vacuum source, vacuumize the system to 3.0 Pa, send methane and tetrafluoroethylene gas into the wall of the plasma processing chamber, and clean the plasma processing chamber of residual gas. After cleaning, the gas pressure in the plasma processing chamber was fixed at 60 Pa by adjusting the mass flow meter, and then the high-frequency AC power supply (power of 300 watts) was turned on, and the time for each section of polyester film to stay in the discharge area was 3 minutes. After the treatment, the film was kept in the mixed gas for 30 seconds to obtain Sample 1.

example 2

[0029]Put a roll of polypropylene film of a certain size into the unwinding material control chamber, then turn on the vacuum source, vacuumize the system to 3.0 Pa, and send the mixed gas of hexafluoropropane and methane with a ratio of 1:1 into the plasma processing chamber Inside, the residual gas in the plasma processing chamber is cleaned. After cleaning, the gas pressure in the plasma processing chamber is fixed at 80 Pa by adjusting the mass flow meter, and then the high-frequency AC power supply (power is 500 watts) is turned on, and each section of polypropylene film stays in the discharge area. After the treatment, the film was kept in the mixed gas for 30 seconds, and then sample 2 was taken out.

example 3

[0031] Put a roll of nylon film of a certain size into the plasma processing chamber, then turn on the vacuum source, vacuum the system to 3.0 Pa, send the mixed gas of tetrafluoropropylene, hexafluoromethane and hydrogen into the plasma processing chamber, and clean the reaction chamber of residual gas. After cleaning, adjust the mass flow meter to fix the gas pressure in the reaction chamber to 100 Pa, then turn on the high-frequency AC power supply with a power of 500 watts, and each section of nylon film stays in the discharge area for 3 minutes. After the treatment, the film was kept in the mixed gas for 30 seconds, and then sample 3 was taken out.

[0032] The above three samples all achieve the effect of not sticking to other products on the surface under high temperature.

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Abstract

The present invention provides a separative film, the technology and the equipment. It can deposit a flat solid sediment of fluorocarbon on the face of the film, and this technology is steady. Because the acting material is the solid sediment of fluorocarbon, although at high temperature, this film can keep steady-going and it has the resistance from inorganic and organic chemistry, and make the detached produce with the mould easily to suit to the stability at high temperature.

Description

technical field [0001] The invention relates to a production equipment of a release film. Background technique [0002] At present, the circuit board manufacturing, self-adhesive for electronic assembly, resin casting, and automotive surface spraying industries all use a large number of release films. For this kind of film, the general requirements are that the temperature is 120-200 ℃, the pressure is from normal pressure to 40kg / cm 2 Under the physical and chemical environment, it is required that the film and the covered product are not bonded. At present, one method is to use polytetrafluoroethylene film, and polytetrafluoroethylene film is expensive; another method is to use the process of coating liquid fluorine-containing or silicon-containing surfactant on the surface of the film to manufacture release film, although Its cost is low, but the process has the following defects: [0003] 1. Due to the existence of liquid surfactant on the surface of the film, there a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/02B32B27/06
Inventor 周伟
Owner 周伟