Industry News

Knowledge points of PET release film

  PET release film, also known as PET silicone oil film, is a layer of silicone oil coated on the surface of PET film to reduce the adhesion of the PET film surface and achieve the effect of release. It can be divided into single-sided release film and double-sided release film. According to the release force, it can be divided into light release film, medium release film, and heavy release film. The commonly used thicknesses are: 0.012mm, 0.019mm, 0.025mm, 0.038mm, 0.05mm, 0.075mm, 0.1mm, 0.125mm, 0.188mm. PET release film manufacturers are equipped with large slitting and slicing machines to roll and slice according to your specifications. Jinlu PET release film has been widely used in industries such as packaging, printing, screen printing, transfer printing, nameplates, film switches, flexible circuits, edge products, circuit boards, laser anti-counterfeiting, bonding, electronics, sealing materials, reflective materials, waterproof materials, pharmaceuticals (plaster paper), toilet paper, adhesive products, die-cutting and punching processing.
Method of release film
  PET release film: also known as heat transfer film, release film, ***lation film, laminating film, Tenna paper, silicone oil film, anti adhesive film, silicone oil release paper, silicone oil paper, mask film, PET release film, also known as PET transfer film. It is mainly used as a carrier for vacuum aluminum plating, which involves placing PET film in a vacuum aluminum plating machine, coating it with adhesive and paper, and then peeling off the PET film. The aluminum molecular layer is transferred to the surface of the cardboard through adhesive action, forming the so-called aluminum plated cardboard. The production process of aluminum coated cardboard is: PET base film → release layer → color layer → aluminum coating layer → adhesive layer → transfer to cardboard.
  In order to improve the surface properties of PET film, enhance the adaptability of printing, and improve the adhesion of vacuum aluminum coating, corona treatment is usually used to increase the surface tension of the film. However, the corona method has issues with timeliness, especially in high temperature and high humidity environments, where the tension of the film after corona treatment is easily attenuated. However, the chemical coating method does not have such problems, so it is favored by the printing industry and aluminum plating industry.
  At present, a series of PET chemical coating products have been developed in China, such as water-soluble polymer coating, which can improve the surface tension of PET films; Coating with acrylate lotion can improve the adaptability of printing (water-soluble ink can be used); Coating with polyurethane aqueous solution can enhance the adhesion between the aluminum plating layer and the PET base film, and increase the thickness of the aluminum plating layer. In addition, the coating method can also be used to produce high resistance films and anti-static films.
Folding release force
  Light release film, medium release film, heavy release film.
5G,10G,15G,20G,25G,30G,35G,40G,45G,50G,60G,70G,80G,90,100G,120G,150G,160G,200G,250G,300G,400G,500G,600G,700G,800G,900G,1000G,1100G,2000G。
Folding color
  Red release film, yellow release film, green release film, blue release film, milky white release film, yellow release film, matte release film, pearl release film, black release film, transparent release film, semi transparent release film, porcelain white release film.
Folding surface treatment
  Single sided release film, double-sided release film, silicon free release film, fluoroplastic release film, single-sided corona, double-sided corona, frosted release film, double-sided corona release film, non corona release film, single-sided corona release film, double-sided frosted release film, single-sided frosted release film, double-sided polished release film, single-sided polished release film, silicon free release film, single-sided silicon containing release film, double-sided silicon containing release film, matte release film, etc






 

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