Plastics are high molecular compounds polymerized by addition polymerization or polycondensation reaction, with medium deformation resistance, which is between fiber and rubber. They are composed of synthetic resin and fillers, plasticizers, stabilizers, lubricants, pigments and other additives. Plastic products can be seen everywhere in our daily life because of the characteristics of materials or plastic materials that can be arbitrarily kneaded into various shapes and finally keep the shape unchanged. The recycling technology of plastics is also very mature. Many plastics are recycled. These colorful plastics are processed together. The color distribution is uneven, the appearance is ugly, and the appearance is poor. Even pure white plastics will turn yellow after being recycled for a period of time. In this case, it is necessary to add a plastic fluorescent whitening agent to uniform the color of the plastic, increase the whiteness and brightness of the plastic, and also make the plastic color better.
Although the amount of fluorescent whitening agent used in plastics is very small, it is indispensable. What are the fluorescent whitening agents commonly used in the plastic field? Xiao Bian recommends several star products with high cost performance to you today.
Plastic fluorescent whitening agent OB, which is light yellow powder in appearance, is suitable for all kinds of plastics, with good light transmittance, good weather resistance, and environmental protection. It is also an approved fluorescent whitening agent product that can be used on food packaging belts. Fluorescent whitening agent OB has a very stable performance when applied to plastics, but its whiteness may be slightly poor. If you have very high requirements for whiteness, this is not recommended.
Plastic fluorescent whitening agent OB-1, this product can be regarded as a star product in the plastic industry, with affordable price and good whitening effect. It is also suitable for all kinds of plastic products, with small addition, migration resistance and good effect. Its price is relatively cheap, and it is the first choice of many plastic manufacturers. However, in certain plastic products, it is unstable and easy to move. So it is still necessary to ask customer service whether it uses your product.
Plastic fluorescent whitening agent FP-127, which can be said to be produced for PVC plastics, is suitable for various PVC products. The addition amount is from 2 to 5 percent of 10000. The whitening effect is obvious, and it is also resistant to migration on PVC plastics. Whether you are soft or hard PVC products, you can choose fluorescent whitening agent FP-127 as your first choice.
In addition, plastics of different materials have their own models of plastic fluorescent whitening agents. If you want to know more, you are welcome to call us for consultation. We will communicate in detail. We will recommend you a professional and targeted fluorescent whitening agent based on your products.