Why don't PVC keychain manufacturers use thermal transfer?

Can PVC keychain manufacturers make thermal transfer stereo keychains or cartoon plastic keychains? The answer is no, because the product is three-dimensional, PVC keychain manufacturers are very cumbersome to make the set, the set is not allowed, the scrap rate is high, the cost is high, and the efficiency is slow. Therefore, the general PVC keychain manufacturers do not do heat transfer, most of them use glue or silk screen technology. 

What if the customer wants to make a PVC keychain with beautiful patterns and three-dimensional effects? Then manufacturers need to improve the process and successfully use it on silicone materials. The new process can achieve the same effect as thermal transfer, and it can also produce a three-dimensional effect of 3-4mm. The important point is that the new process brings breakthrough changes. The pattern on the surface of the silica gel can not be scratched firmly; the pattern will not be damaged by folding, pulling, or the product.