This document discusses non-woven fabrics used for protective clothing. It describes the fiber used as high-density polyethylene which forms tough and durable sheet products. The fiber is used to protect the body from hazards by providing a barrier against chemicals, liquids, and particles. The document also outlines the manufacturing process of bonding polypropylene layers and various techniques to improve the barrier properties of these fabrics.

1. Introduction For the observed that the fibre we concluded that the sampel is coverall non woven Dupont barrier man material protection. Protective clothing does not mean the same to all people. As in most discussions of technical products, we must first define our subject. While all clothing is protective to some degree, our concern is not with routine needs, such as:- ~clothing for warmth, rainwear, or routine work clothing. protection in situations where hazards or risks are present that have the potential to be life threatening or pose considerable potential for injury or damage to the person working in. Tyvek-Pro.Tech® is the brand name for a complete and diverse range of limited-use protective clothing produced by DuPont. In some cases, such as clean rooms, we may be equally concerned about protecting the product we are working with as well as the worker.

3. Spunbonded olefin is an extremely versatile material that combines some of the properties of paper, film and cloth.

5. Flammability Gowns and drapes should resist combustion. The OR environment contains the necessary fuel, heat source, and oxygen to cause a potential fire. Choosing materials that resist rapid flame spread will help improve reaction time in the event an OR fire occurs

6. Comfort Gowns and drapes should be comfortable and contribute to maintaining the wearer’s desired body temperature. This allows personnel to more readily focus on what is truly important, the procedure at hand.”

7. For Application Asbestos Removal Paint Spraying Chemical Splash Acid Handling Tank Cleaning General Maintenance appendix non woven.docx

8. Manufacturing process Material consisting of one layer of Meltblown polypropylene bonded between two layers of spunbound polypropylene. These garmets are strong, fluid resistant and breathable. Providing maximum comfort and durability, and optimal mix of protection and comfort at an affordable price. Typical applications include general maintenance, janitorial services, food processing, construction and any nonhazardous job where you need to keep clean. This fibre used from bicomponentfibre.

9. Features 1) An ideal solution for non-hazardous, grimy work environments where a low cost disposable garment is needed2) Polypropylene is breathable, which makes it perfect for the workplace where constant dirt and grime is encountered3) Material: PP, PE+PP, CPE+PP, SMS, CPE+SMS, spunlace woodpulp4) Dimensions: S, M, L, XL, XXL, XXXL

10. Continued Packing:5pcs/polybag, 25pcs/ctn1pc/polybag, 25pcs/ctn1pc/polybag, 50pcs/ctn

11. The major technologies used to manufacture non-woven fabric materials are: Meltblowing ~ Carded Thermal bonding All of these processes are used to make non-woven fabrics that compete in the medical marketplace. Thermal bonded fabrics are generally made by carding staple fiber into a wide web that is then compressed and bonded with heat . Tyvek is a spunbonded olefin which is made of high density polyethylene fibers which are formed into a sheet by first extruding continuous strands of very fine then bonding them together with heat and pressure to form a virtually impermeable fabric.

12. Techniques to Improve Barrier Properties ~The "Holy Grail" of barrier fabrics for medical applications would be a low cost non-woven material that is breathable, sterilizable, flexible, and extremely resistant to blood and viral penetration. The following is a discussion of techniques being considered to produce such a fabric. Increased basis weight Coatings and films Lower denier fibers Meltblown layers Bicomponent fibers Sheath/core Additives Splittable