On the importance of fabric whitening agent

Do you know how to produce our common woven bags? Plastic wire drawing is a kind of abbreviation of wire drawing woven bag. Before plastic knitting, the woven bag should be shaped by wire drawing, and then woven into woven bag. There are many kinds of silk woven bags, which are widely used in many fields, such as food grade rice bags, packaging bags everywhere in the market, factory ton bags, agricultural urea bags, etc. Most of the woven bags are white in appearance, which gives people a clean and hygienic feeling. Why do you see some woven bags that are very white and don't turn yellow in the later stage, while some woven bags turn yellow and dark, and have poor weather resistance? Because many woven bags add fluorescent whitening agent OB-1 in the production process

 

Many woven bag manufacturers are studying how to make this kind of clean white woven bag? Some people say that good raw materials are OK, new materials are OK, that's right! This method is applicable to woven bags for food, but do some industrial products such as agricultural urea woven bags and ton bags also require new materials? In order to reduce the cost, many woven bag manufacturers will add some recycled materials, that is, recycled waste materials to produce wire drawing woven bags. However, the appearance of recycled bags made of ton bags is incomparable with that of new materials, so how to make the woven bags made of recycled materials the same as those made of new materials? For example, Zhejiang Wenzhou, Shandong Linyi, Henan Puyang, Liaoning Shenyang, these places have thousands of woven bag manufacturers. Many manufacturers of woven bags and yarn mesh products, in the case of new materials and recycled materials used together, in order to achieve better appearance effect, will add some additives to improve the appearance of plastic products, make it closer to the whiteness of new materials. Whitening agent is one of the good plastic additives, which can not only effectively improve the appearance whiteness and brightness of woven bags, but also increase the weatherability of woven bags. There are many kinds of whitening agents on the market. At the same time, we should be careful to choose whitening agents. Due to its special production process and application range, the high temperature resistance and whiteness of whitening agent are required. If you choose an inappropriate brightener, the woven bag will not meet the appearance and brightness required by customers. Why do many manufacturers choose Shanghai enmai fluorescent brightener?

 

We can know from the raw materials and uses of drawing woven bags that woven bags have certain requirements for high temperature resistance, whiteness and brightness of whitening agents, and the price should not be too high. In order to meet these conditions, the addition of 2 / 10000 (only 20g for 100kg raw materials) can make the woven bag as white as new, and make your woven bag whiter and more colorful!