How to choose a book cover?

1. Check the product identification.

When buying a book cover (film), first check the product identification (such as product name, manufacturer's name, address, product number, product description, applicable age range, safety warning, etc.). ), and try to buy products with complete "brand", "manufacturer" and "implementation standard" in regular supermarkets and brand e-commerce flagship stores to avoid buying "three noes" products.

2. Choose a book cover instead of a Bao Shu movie.

Bao Shu films sold in the market can be cut and pasted freely at the time of purchase. However, because its material is mainly relatively hard polyvinyl chloride (PVC), phthalate plasticizers are often added in the production process. In addition, the glue used for pasting may also have solvent residues.

However, the book cover is made of polypropylene (PP) with relatively good elasticity, and generally no plasticizer is added in the production process. At the same time, because there is no viscose, the solvent residue is less.

However, in order to protect the environment, it is recommended to give priority to kraft paper covers.

3. Try to avoid buying products with pungent smell.

Generally speaking, the material of the cover of inferior books is more likely to be torn, with poor light transmittance, light blue or light yellow and obvious pungent smell, so we should try to avoid buying such products.

In addition, the surface of Bao Shu film (sleeve) should be smooth, clean and with good light transmittance.