PU is made of polyurethane, and PU leather is regenerated leather, commonly known as artificial leather. It is a newly developed high-grade leather among synthetic leathers and a new type of leather. PU leather feels softer than real leather and is the best choice to replace natural leather. Polyurethane (PU), whose full name is polyurethane, is a polymer compound. This object was made by Otto Bayer and others in 1937. Polyurethane has two categories: polyester type and polyether type; the specific advantages and disadvantages are as follows:
Pu material advantages: light weight, comfortable and light to use; good physical properties, resistance to bending, good softness, and tensile strength It has high strength and breathability; it is waterproof, fireproof, mothproof, mildewproof, and crackproof, and is suitable for indoor and outdoor decorative materials. It is a new green decorative material; it has high air permeability, and the temperature transmittance can reach 8000-14000g /24h/cm2, with high peel strength and high water pressure resistance, it is an ideal material for the surface and bottom layers of waterproof and breathable clothing fabrics; its appearance and performance are close to natural leather, easy to wash and decontaminate, and easy to sew; the surface is smooth and tight, and can be used for many tasks A variety of surface treatments and dyeings, with various varieties; relatively cheap, widely used, and also used in aviation, light industry, medical and other fields;
Disadvantages: not wear-resistant, and cannot be exposed to strong sunlight, otherwise It will cause wrinkles and cracks in the PU leather; it cannot be dry cleaned and can only be washed at a water temperature of 40°C; the consumables are large and do not maintain their value; the price of some PU fabrics with special requirements is about 2-3 times higher than that of PVC fabrics; and PU The pattern paper required for the fabric can only be used 4-5 times before being scrapped, so the price is higher; please note that in actual applications, appropriate materials need to be selected according to specific needs and scenarios.