Zihua Technology's breathable film has a new formula!

Recently, the latest model of Zihua Technology's polyolefin microporous breathable membrane has passed the Shanghai High-tech Achievements Transformation Certification. The new product process has significantly improved the water vapor transmission rate, stretch performance and comfort of the functional breathable film, and better met the personalized, high-quality and healthy life needs of the disposable sanitary products market.

For disposable sanitary products, such as baby diapers, adult diapers, women's menstrual pants, sanitary napkins, etc., the underlying breathable film often needs to have the functional characteristics of "breathable and impermeable", which is also a key material to improve product quality and comfort. The new "polyolefin microporous breathable membrane" independently developed by Zihua Technology is in response to the market's increasing demand for the breathability, non-leakage and lightweight of the bottom film. It has lower weight and less production process waste. Less waste and other advantages.

In view of the shortcomings of existing film materials that sacrifice weight in order to meet the basic functional requirements of non-leakage, the company developed a new formula to optimize the processing performance and mechanical properties of the material, thereby achieving high moisture permeability and high static resistance. Water pressure, high strength and lighter weight membrane. Not only is the high moisture permeability greatly improved compared to existing products, but as an anti-leakage bottom film or anti-leakage functional layer, the basis weight of the breathable film is reduced by 15% to 45% compared with existing products.

In order to adapt to the new formula, the company has developed a new production process. When using a specific formula of polyolefin base material, a special process is used, which can not only block the leakage of liquid, but also allow water vapor molecules to pass smoothly, so it is breathable and impermeable. Water permeable function, microporous breathable membrane has higher air permeability, water pressure resistance and tensile strength.

This project has obtained 2 invention patents. The project products have passed relevant inspections and tests, met the technical requirements for mass production, and have been put into production.

According to relevant research statistics, overall, the disposable sanitary products industry still has sufficient momentum for future development. As one of the earliest domestic companies to master the core technology of low-gram polyolefin microporous breathable films, the company introduced the German W&H three-layer co-extrusion blown film production line and longitudinal stretching device, and combined it with the formula of environmentally friendly breathable functional films to develop New products and personalized customization have achieved industrial development, which has positive significance for the application and product upgrading of relevant domestic new equipment and new technologies.