50results about How to "Fiber soft" patented technology

The invention relates to a crystal variation modification method of ambari fiber. The crystal variation modification method comprises following steps: ambari fiber is delivered into a sealed container; a modification medium is added; the pressure of the sealed container is increased to be as large as a modification pressure, and then is decreased instantaneously; the modification medium is removed, and then the crystal variation modified ambari fiber is obtained. Advantages of the crystal variation modification method are that: 1) the ambari fiber is modified by change of crystal lattice shape, original defects of the ambari fiber are eliminated, pores are enlarged, crystallinity is reduced, the ambari fiber is softened, and dimensional stability, softness and dyeing properties of the obtained products are improved; 2) instantaneous pressure release is employed, so that the modified ambari fiber expands to a highest degree, bulkiness and softness of the ambari fiber are increased greatly, and spinning, weaving and dyeing performances of the ambari fiber are improved significantly.

The invention relates to a composite crystal change modification method of cotton fiber. According to the method, the cotton fiber is placed in a closed container, a modification medium is added, pressure is raised to modification pressure, then, the pressure is released instantly, the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is used for removing the modified medium, and therefore composite crystal change and modified cotton fiber can be obtained. According to the crystal change and modified cotton fiber, pores are increased, degree of crystallinity is reduced, the fiber is soft, and size stability, flexibility, dyeing performance and the like of products are improved; the method of pressure instant release is adopted, and the fluffiness and flexibility of the fiber are improved greatly; the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is adopted, therefore, fiber quality is further improved, and modification efficiency is greatly improved.

The invention discloses a preparation method of ultra-high molecular weight polyethylene fibers, which comprises the following steps: (1) preparing ultra-high molecular weight polyethylene jelly filaments by using a gel spinning method; (3) Pre-stretch, extract, dry and carry out no less than three-stage hot-drawing of the jelly collagen filaments after the equilibrium static treatment, and while hot-drawing, make ultra-high-molecular-weight polyethylene The jelly collagen filaments pass through a coating roller with an antistatic agent aqueous solution; (4) drying to obtain ultra-high molecular weight polyethylene fibers. The ultra-high molecular weight polyethylene fiber prepared by the method of the invention not only improves high strength and high modulus, but also solves the problem that the post-processing of the fiber is affected by charging, and has low static electricity.

The invention relates to a ramie high-temperature gas explosion degumming process. The process applies degumming process, and the degumming process applies alkali solution. The degumming process is characterized in that degumming process includes unpacking and unbinding process, feeding process, first high-temperature gas explosion process, first extruding process, second high-temperature gas explosion process, second extruding process, third high-temperature gas explosion process, and third extruding process, wherein a high-temperature high-pressure flushing method is applied; ramie is flushed under the alkali solution in the first high-temperature gas explosion process, the second high-temperature gas explosion process and the third high-temperature gas explosion process; the alkali solution temperature is kept at 80-90 DEG C or 95-100 DEG C; the alkali solution pressure is kept at 0.8-1.0 MPa or 1.0-1.2 MPa; the heat preservation and pressure maintaining times of the alkali solution are 3-5 minutes or 5-10 minutes. The process cancels the binding, packing, softening, and loosening processes, shortens the technical flow, promotes quality of the degummed ramie, improves production efficiency, decreases cost and reduces environmental pollution.

The invention discloses a method for preparing textile fibers by degumming environmentally friendly raw hemp, which comprises (1) mixing an organic solvent with a mass ratio of 4:1-2:1 and raw hemp at a temperature of 60-120°C, Scouring for 2-5 hours to extract the lignin in the original hemp; (2) use the organic degumming solution of hydrogen peroxide as pectin and hemicellulose remover for the hemp fiber after delignification, and start from room temperature in half an hour Raise the temperature to 50-100°C and keep it warm for 1-4 hours to obtain hemp fiber for textile. The degumming and bleaching method of the invention is practical and effective, and the obtained hemp fiber can be used in the processing of various textiles, and high-grade lignin can be recovered at the same time, and the waste water can reach the discharge standard after treatment.

The invention relates to a method for modifying flax fibers via crystal lattice change. The method comprises the following steps: putting flax fibers into an enclosed container; filling a modification medium; boosting to a modification pressure; releasing pressure momentarily; removing the modification medium to obtain flax fibers modified via crystal lattice change. Due to the adoption of the technical scheme, the method has the advantages that 1, the aim of modifying is fulfilled by changing a crystal lattice structure, the original defects are overcome by adopting the modified fibers, pores are increased, the degree of crystallization is lowered, fibers are soft, and the size stability, softness, dyeing performance and the like of a product are enhanced; 2, a method for releasing pressure momentarily is adopted, so that modified fibers expand to the maximum extent, the bulkiness and softness of the fibers are enhanced greatly, and the spinning, weaving and dyeing performance of the fibers is enhanced greatly.