Firstly, there is an understanding of the definitions of the two. Release force, also known as release degree, refers to the degree of release of release paper. There is no absolute value at this point, and it depends on the formula of each manufacturer. Depending on the amount of oil applied, it can be divided into light, medium, and heavy release forces. The peel strength refers to whether the release paper (film) is easy to peel off from the attached product, which is determined through strict testing.

Test steps: Place the TESA7475 adhesive surface downwards and lightly press the adhesive strip onto the clean test board. Use a pressure roller to press back and forth at a speed of approximately 10mm/second twice, making the adhesive surface in close contact with the test board. (The release film needs to be pulled or fixed on the test board.) After the test strip is applied properly, it should be left for 20 minutes before testing. If permanent peeling force needs to be tested, it needs to be left for 24 hours. Debug the stripping angle to 180 °, set the speed to 300mm/min, and run the test on startup.

High temperature resistant release film: it is made of polyimide film as the base material, coated with imported high temperature resistant silicone pressure sensitive adhesive, and then coated with polyester release film. Tape has excellent high temperature resistance, electrical insulation, and chemical resistance; And it is non-toxic, odorless, and harmless to the human body and environment, due to its extremely low release force.

The circuit board pressure transmission and pressing cushion pad is developed and produced for the ultra-high temperature press currently used in the PCB industry. When the circuit board pressing temperature exceeds 260 ℃, the general Kraft paper, cushion pad and other auxiliary materials can no longer meet the pressing demand of high temperature, and fiber materials with higher temperature resistance must be used. At present, this RCX-K25 cushion has excellent temperature resistance and can meet the requirements of ultra-high temperature pressing.

ETFE release membrane is academically known as Teflon release membrane, Teflon release membrane, Teflon release membrane, Teflon release membrane, Teflon release membrane, Teflon release membrane, etc. It is a polymer compound formed by polymerization of tetrafluoroethylene, with excellent chemical stability and corrosion resistance. It is one of the best corrosion resistant materials in the world today. Ruichangxing produces and acts as an agent for various types of Teflon films, such as PTFE, FEP, ETFE, PFA, ECTFE, PVDF, PMP, etc., as well as products such as fluoropolymer casting films MR, VB, DF100, etc.

The key points for controlling the quality of release film include coating uniformity, high residual adhesion, flatness, and high cleanliness. Manufacturers generally control the quality of release film from the following four points.

1： Basic information

Release film refers to a thin film that, under limited conditions, does not produce stickiness or slight stickiness when in contact with a specific material, and can distinguish the surface of the film. 1、 The use and characteristics of silicone oil release film are selected with good PET substrate, which has uniform and stable release force, non static/single (double) anti static, and diverse thickness and color. It is mainly used for non drying adhesive tape, double-sided adhesive tape, precision material die-cutting, etc. The silicone oil release film used in the graphite industry has uniform and stable release force, ultra-light/overweight release force, thickness, and multiple colors. According to customer requirements, the release force is 300-400g, which can also be used as an anti-static layer,

Many people are not aware of the advantages of PET release membranes. Today, let me introduce it to you. PET release film has good function in protecting golden fingers, as its own function has already met the requirements in this regard. What requirements can it meet? Firstly, its high-temperature resistance function, it can reach a high temperature of 300 degrees Celsius, and can continue to deform in an environment of 300 degrees Celsius for ten minutes. If the environment is 180 degrees Celsius in the morning, it can continue for a longer time. This is also what alloy fingers need, and then there is its insulation. The golden finger is an electronic product, so as an important information to protect it,

The release film is coated with silica gel release agent on the surface of environmental protection material PE/OPP/PET film to enable it to show a very light and stable release force. It is used for various organic pressure sensing adhesives, different organic pressure sensing adhesives, such as Hot-melt adhesive, pressure adhesive, rubber system pressure sensing adhesive, etc The required release force of the release film varies, and the release film is also known as peel off film, isolation film, separation film, release film, silicone oil film, and anti mucosal film. PET release film plays an important role in the daily production of Double-sided tape. Today I would like to share with you the role of PET release film in production. Like die-cutting on both sides

Introduction to the functions, characteristics, and uses of release film. The Z standard of the finished product is 5mm, with a ± tolerance of only 0.1 mm. PET release film is generally used to isolate adhesive materials, and is widely used in professions such as electronics, mobile phones, adhesives, printed circuit boards, packaging, printing, silk screen, pad printing, nameplate, thin film switch, flexible circuit, insulation products, circuit boards, laser anti-counterfeiting, bonding, electronics, sealing materials, reflective materials, waterproof materials Professional fields such as medicine (plaster paper), sanitary paper, adhesive products, die-cutting and punching processing, suitable for heat transfer printing, and more suitable for die-cutting gaskets and adhesive products

In FPC production, release film/release paper is generally required, and the main functions of release film are isolation, filling, protection, and easy peeling. With the development of the electronics industry, the demand for release film/release paper is increasing. However, in order to control production costs, domestic release film/release paper has to be used. Below is a summary of the reasons for the rapid development of release films/release papers in China: 1. Product characteristics: Currently, the commonly used release films/release papers in China are Sanzhi from South Korea, Sumitomo/Mitsui TPX/Shuishui/Nippon release films from Japan, and 3M from the United States. Because different tapes have different adhesive properties. this