Foam cotton is a kind of material containing pores, such as polystyrene foam board, polyurethane foam, sealant pad, etc. these products are characterized by independent bubble structure, small density, good flexibility, easy processing, high and low temperature resistance, weather resistance and aging resistance. Because of the advantages of foam cotton, and the low price of products, so it is in the field of packaging, foam cotton is favored by the majority of consumers.
Foam cotton is mainly used to prevent the product from bumping and damage, and its appearance is mainly white. However, we know that foam cotton is mostly used in the field of packaging, and foam cotton is a disposable product. In order to reduce costs and make more profits, some manufacturers will choose to use recycled materials in production. The quality of the products produced with recycled materials is not inferior to that of the new materials, but there is still a certain gap between its appearance whiteness and that of the new materials. At this time, we need to use whitening agents to improve the whiteness of the products. So how to choose whitening agent for foamed cotton? Here is Huai'an Jiaqi fluorescent whitening agent
Most of the foamed cotton is soft, and it is used as disposable packaging materials. It is suggested to use brightener 127 for the following two reasons:
1. The whiteness value of fluorescent brightener 127 is very high, and the compatibility is very good (it can also whiten the paint ink). Although the weather resistance of brightener 127 is not good, it does not affect the use.
2. Fluorescent brightener 127 has high cost performance. Although the fluorescent brighteners OB and KCB can also be used for foamed cotton, the price of these two brighteners is relatively high.
The above two points are the introduction of how to choose whitening agent for foamed cotton. If you have any questions about whitening agent, please feel free to consult our Shanghai enmai fluorescent whitening agent!