PP woven bag is a subdivided field in the plastic product industry. PP woven bag high temperature whitening agent is an additive used in the production of pp woven bag, which can greatly increase the whiteness, brightness and weather resistance of pp woven bag sex. The production of PP woven bags belongs to the drawing process. The process is to mix the materials and add various additives, then heat-melt them, then draw them and then weave them into bags. The raw materials are generally plastic polypropylene raw materials and recycled PP particles.
But everyone should also know that there is no big restriction on the production of plastic granules for PP woven bags. Any recycled plastic can be used for granulation, which can be divided into 1-level granulation, 2-level granulation and 3-level granulation. Some manufacturers want to save costs and use poor-quality plastic particles to draw wire to make PP woven bags, and the woven bags made of such woven bags have undergone many times of high-temperature thermal melting, and the plastic molecular structure is not stable enough to cause yellow light and white The problem of low density and dull color, and everyone knows that PP woven bags are generally used as packaging bags in the market today, and what the outer packaging currently needs is a beautiful appearance. Nowadays, as people live With the improvement of the level, people's experience of the appearance of the products they use has been far higher than the use value of the products themselves, so the high temperature resistant whitening agent for PP woven bags plays a great role in the production of woven bags.
Many manufacturers of pp woven bags and gauze products will add some additives to improve the appearance grade of woven bags and make them closer to new materials in order to achieve a good appearance effect when new materials are matched with recycled materials. , Fluorescent whitening agent is a commonly used additive for pp woven bags, which can improve the corresponding whiteness and brightness of the product appearance, making the product appearance almost the same as that of new materials.