Brief introduction to the causes of black spots in PP and PE
"SD" has formed a the unique style of tech and innovation with over 20 years.
Over 20 years growth, the company has cultivated a team of experienced technical and management staff and owned the modern facilities and automatic assembly lines from dyeing, knitting, finishing and deep processing.
Meanwhile, the company always follows the fashion steps, continuously innovates and develops new products, and improves the management and service ability.
The upscale faux fox fur and knitting wool products reach the domestic and international high level. Products have been exported to the United States, Australia, Japan, Russia and Vietnam. In addition, according to the report from international accredited testing institutions, the test of formaldehyde in some products is ND level. The company receives high praise from the international specialists.
The company keeps the spirit of being real, precise, beautiful and innovative, capturing the market with high quality and credit. The products gains the trust and favor from home and abroad customer with high quality and diverstity.
All staff of Shuangda work hard towards automation, intellectualization and informatization. Keep improving the efficiency, promoting craftsman spirit, innovating new products. We are committed to becoming a more specialized faux fur products supplier. We wish the ecotope will become better by our efforts.
Natural Wool,Wool Mattress,Natural Wool Rugs,Wool Comforter Wuxi Shuanglida Plush Technology Co., LTD , https://www.sd-fauxfurs.com
In PP and PE recycled materials, manufacturers will encounter many problems that are difficult to solve. Let us give an example today. As we all know, some of the recycled materials are imported from abroad, such as Japan, the United States, and South Korea. There is a PP, PE film, the light is difficult to identify with the naked eye, this film is better in transparency and smoothness, but when you get on the train to the extruder, a small amount of black spots will appear after the process, and the temperature control is appropriate in this process. And no other impurities are incorporated, so why are there such black spots? The reason is that the film is coated with an anti-UV coating at the time of production because of the packaging requirements. The temperature of the coating decomposes at about 120 degrees, and the coating is coked and grayed at 150-160 degrees after the film is plasticized. It is the black dot that appears above. This leads to a reduction in the price of the film and a loss of production. Therefore, some manufacturers must pay attention to this PP, PE film when purchasing, so as not to bring unnecessary losses.