The bag made of peritoneal non-woven fabric is called peritoneal non-woven fabric bag. The product adopts the casting method, the compound is firm, and it is not sticky during the compounding process, soft to the touch, no plastic feeling, no skin irritation, suitable for use in sexual medicine. The production of sheets, bed sheets, surgical gowns, isolation gowns, protective clothing, shoe covers, and other sanitary protection products. This cloth product is made of non-woven fabrics. It is a new generation of materials. It does not support combustion, easily decomposes, non-toxic and non-irritating, rich in color, low in price, and can be recycled and reused. The material can be naturally decomposed when placed outdoors for 90 days, and has a service life of up to 5 years when placed indoors.
Lamination of non-woven fabrics and films
1. Cloth-powder compounding: a method in which hot-melt adhesive powder is evenly spread on non-woven bags or films, and then compounded by heat. Features: The thermal pressure rollers use elastic rollers and smooth rollers to cause little damage to the material.
Disadvantages: slow production speed and low production efficiency; the average distribution of hot melt adhesive powder is the key to the quality of the product, but the easy hygroscopicity of hot melt adhesive powder makes the average distribution quite difficult, and the amount of distribution is not good Control; the melting temperature of the hot melt adhesive powder is high, and the melting temperature of the breathable film is low, and the hot melt adhesive powder cannot be completely melted during compounding, resulting in insufficient peel strength and poor surface flatness of the compound film.
2. Hot melt adhesive breathable coating compounding: Features: Faster production speed, low air loss rate of breathable film material (between 20-30).
Disadvantages: large investment in equipment (a set of 1600mm wide hot melt adhesive breathable coating compound hot melt adhesive system costs 400,000 US dollars); high gram weight of glue (taking the compounding requirements of 180° angle and 3.0N/inch strength as an example) , the amount of glue used reaches 4gsm or ); the coating head needs to be in contact with the coating material during coating, and the uncluttering and unwinding equipment is required to be undisturbed and flat; the coating process exerts a large tension on the material, However, non-woven fabrics and films are required to operate in a state of very small tension, otherwise it will easily cause tensile deformation of the material, and the product will wrinkle after compounding, thereby affecting the quality of the product; the manipulation and adjustment are more complicated: neither non-woven fabric nor film can High temperature resistance, and the operating temperature of hot melt adhesive is basically 150 degrees Celsius or 150 degrees Celsius, and low-speed operation can easily cause the material to be scalded, causing production pauses and increased waste.
