摘要:
The present invention is related to a high frequency easy melting multiple layered structure, which includes a high frequency easy melting coating layer; a high frequency easy melting adhesive layer installed below the high frequency easy melting coating layer and a high frequency easy melting thermoplastic polyurethane (TPU) substrate placed below the high frequency easy melting adhesive layer. They serve to reduce the energy and time period in the high frequency melting and connection so as to promote producing speed and capacity effectively.
摘要:
A method for producing elastic artificial leather includes preparing two polymers that include different crystallization degrees but similar fluidities. Fibers are made of the polymers, and non-woven cloth is made of the fibers. The non-woven cloth is then soaked in polyurethane resin. The non-woven cloth and the polyurethane resin are washed and then dried. In another method, a first type of fibers made of the polymers is mixed with a second type of fibers that can be dissolved in water, alkali or organic solvent. A non-woven cloth made of the first and second types of fibers and is soaked in polyurethane resin. The second type of fibers are then from the non-woven cloth and the polyurethane resin in order to leave elongated spaces. With either method, the recovery rate of the elastic artificial leather is above 90% after it is stretched by 10% to 200% longitudinally and transversely.
摘要:
There is disclosed a method for making environment-friendly artificial leather from ultra micro fiber without solvent treatment. The method includes the step of making at least two components into ultra micro fibers, as raw materials, by means of conjugate spinning. By means of spun lacing or water lacing, three-dimensional interlacing is conducted on the ultra micro fibers in order to provide non-woven fabric, as a substrate. After the substrate is impregnated with water-borne resin solution, salt solution is used to solidify the water-borne resin solution in the substrate. The sea component of the ultra micro fibers is removed by means of alkaline. Abrading and finishing are conducted in order to obtain a semi-product of the environment-friendly artificial leather. The semi-product is dyed or water-borne resin is adhered to the semi-product in order to provide the environment-friendly artificial leather made from the ultra micro fibers without solvent treatment, providing a leather-like feel and excellent softness and physical properties.
摘要:
There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.
摘要:
There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.
摘要:
A method for producing an artificial leather includes mixed spinning an island polymer and a sea polymer having a different dissolving property from that of the island polymer at a predetermined temperature, producing a non-woven substrate from the fiber obtained, immersing the non-woven substrate into a polymer, dissolving and removing the sea polymer in the non-woven substrate to obtain an artificial leather as a semi-finished product, and polishing the surface of the artificial leather to obtain an artificial leather having excellent dyeability and advanced fluff-like property. The ratio of melt flow index of the sea polymer to relative viscosity of the island polymer is about 20 to about 55, in which the relative viscosity of the island polymer is about 2.7 to about 3.5 and the weight percentage of the sea polymer relative to the sum of the sea polymer and the island polymer is about 30% to about 70%.
摘要:
A method for manufacturing an artificial leather comprises the following steps. First, ultramicrofiber-forming fibers having an islands-in-sea type cross-sectional configuration are formed by blend spinning or conjugate spinning. Secondly, a porous reinforcement sheet of low compactness is formed from polyester, polyurethane or polyolefin by spunbonding, meltblowing or calendering. Next, the ultramicrofibers are entangled with the reinforcement sheet by needle punching or spunlace to form the complex reinforced ultramicrofiber nonwoven fabric. The nonwoven is impregnated or coated with an elastomer resin composition, and then subjected to a coagulating process, a washing process, a drying process and a removing process to produce a semi-product leather. Finally, the semi-product leather is then processed to produce the artificial leather.
摘要:
Elastic artificial leather is disclosed. There are provided two polymers that include different crystallization degrees but similar fluidities. Fibers are made of the polymers. Non-woven cloth is made of the fibers. The non-woven cloth is soaked in water at 50 to 90° C. Thus, the fibers curl so that the non-woven cloth is elastic. The non-woven cloth is soaked in PU resin, washed and dried. Alternatively, the non-woven cloth includes, in addition to the fibers (“first type of fibers”), additional fibers (“second type of fibers”) that can be dissolved in water, alkali or solvent. The non-woven cloth is soaked in PU resin, washed and dried. The second type of fibers is removed from the non-woven cloth and the PU resin in order to leave elongated spaces. Thus, the artificial leather is elastic.
摘要:
Artificial leather includes a non-woven fabric made of split type conjugate fibers and a resin material for submerging or coating the non-woven fabric. The conjugate fibers are made from a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25% by conjugate spinning. Each of the conjugate fibers is split into 24 to 128 segments.
摘要:
A method for making ultra-fine carbon fibers and activated ultra-fine carbon fibers includes core-sheath melt-spinning to produce a core-sheath fiber including a sheath made of polyolefin and a carbon-containing polymer, and a core made of a polyolefin polymer. Under control of temperature, the core-sheath fiber is stabilized as a carbon-containing precursor fiber. The stabilized core-sheath fiber is carbonized in nitrogen at 600 to 1500 degrees Celsius and converted into ultra-fine carbon fibers with a diameter of 20 to 800 nm. Then, the ultra-fine carbon fibers are activated in carbon dioxide, steam, air or any combination thereof at 600 to 1500 degrees Celsius to form activated ultra-fine carbon fibers.