Heat transfer vinyl is a kind of PET film coated with a layer of chemical materials that can be heat-transferred to clothing fabrics, such as polyurethane, polysiloxane, etc. First, liquid or paste polyurethane and polysiloxane are evenly coated on PET film, and then heated and cured to make semi-finished heat transfer vinyl. Finally, various logos are carved on this heat transfer vinyl by knife engraving, cross-cutting and laser. The logo, pattern, text, etc., are finally transferred to the surface of the clothing through the heat transfer machine.
Heat transfer PU vinyl
Polyurethane is a thermoplastic material, showing paste or liquid properties before plasticizing, adding curing agent at 100℃ temperature can be quickly cured, PU evenly coated on PET film, heated plasticized on the surface of the film. Heat transfer PU vinyl engraved and transferred to the clothing surface, with good adhesion and washable and friction-resistant characteristics.
Heat transfer silicone vinyl
The coating machine is the main processing equipment of heat transfer silicone vinyl. On the coating machine, the liquid silicone is first coated on PET film, and the coating can be performed several times according to the demand to ensure that the color is full and uniform.
Then, the silicone bridge is coated on the curing silicone, this step helps to strengthen the wear resistance and stability of heat transfer silicone vinyl.
Finally, the silicone hot melt adhesive is coated on the silicone bridge, which is to make the engraving silicone vinyl fully bonded with the fabric during the pressing process.
What is the difference between PU vinyl and silicone vinyl?
PU vinyl is made of PVC+PU material composite, so in terms of elasticity, the elasticity is general, and it is not suitable for making logo on elastic cloth.
The elasticity of silicone vinyl is very good, because the characteristics of silicone is high elastic resistance to stretch, suitable for elastic fabrics above and ordinary fabrics to do logo.
Silicone vinyl with high elasticity high temperature resistant, washing resistant, can pass the environmental test. Many high-end clothing manufacturer like to use silicone vinyl to do trademark logo. This is the reason why silicone vinyl more expensive than PU vinyl and PVC vinyl.
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