What material is the pvc self-adhesive sticker?

PVC self-adhesive sticker refers to a self-adhesive material, namely polyvinyl chloride, which is simply a kind of self-adhesive film that is a bit like plastic. Tear the desired sticker from the backing paper and apply it directly to the product.

Although this self-adhesive material is called PVC, this material is also divided into PVC transparent, PVC white glossy and PVC white matte.

Material properties: waterproof, oil resistant, tear resistant, high temperature resistant (different materials have different temperature resistance).

The advantages and application of PVC self-adhesive

PVC has non-flammability, high strength, weather resistance and excellent dimensional stability, and has strong resistance to oxidizing agents, reducing agents and strong acids. In addition, due to its good flexibility, shrinkage and opacity, good processing and marking properties, strong chemical resistance, strength and durability, it is suitable for long-term outdoor use.

However, PVC has poor thermal stability and light resistance, and may begin to decompose and release hydrogen chloride (HCl) gas above 140 °C, which is not conducive to environmental protection (alkaline is often added in actual production. stabilizers and HCl)). Inhibit its catalytic cracking reaction. ). And some toxic auxiliary materials are added in the manufacturing process, such as plasticizers and anti-aging agents, to improve its heat resistance, toughness, plasticity, etc., so its products generally do not store food and medicine. In addition, the decomposition of PVC label materials is not good, which has a negative impact on environmental protection.