42results about How to "Reduce yarn hairiness" patented technology

The invention relates to a textile processing technology concerning operations after the spinning that can reduce hairiness in finished yarn, and pertains to the technical field of textile processing. The invention provides a hairiness reducer for finished yarn that de-twists and heats on the advancing channel of the yarns, which reduces hairiness of finished yarns by de-twisting, heating, softening and twisting again yarns. The hairiness reducer for finished yarn that de-twists and heats can outstandingly reduce hairiness in finished yarns, and make yarn structure more tight, efficiently avoid the forming of hairiness because the fiber in the yarn stretches out from the yarn surface in subsequent operation. In addition, the hairiness reducer for finished yarn that de-twists and heats can be used on spooling, warping even knitting machines, the reducer consumes low energy, is easy to install and use, and is good for spreading and application widely.

The invention discloses a production method of flax blended knitting yarns. In the method, flax and modal fibers are blended according to a ratio of 15:85 to 85:15. The method comprises a spinning process and a rotor spinning process. The modal fibers selected in the invention are the most ideal material for light and thin knitted fabrics for their sweat-absorbing, thermal-insulation and cooling properties and integration of the comfortableness of cotton, the drapability of adhesive, the strength of terylene and the handfeel of real silk. The flax-modal blended knitting yarns exploit development space for high-quality flax light and thin knitted fabrics. Although the flax and modal fibers are susceptible to generating hairiness, the rotor spinning used in the invention is one-step bobbin forming and therefore reduces the hairiness of finished fibers and ensures the knitted fabrics are clear and full in appearance. The rotor spun yarns also have the advantages of few yarn faults, high elasticity, pilling resistance, wear resistance and the like. The method has the advantages that: the process flow is short; the cost is low; high grade flax knitting yarns with high balance of various performance indexes such as high fineness, little hairiness, yarn levelness and soft handfeel; and the application value in textile processing field is high.

The invention discloses a viscose imitation silk yarn production device and a spinning method thereof. The viscose roving is drawn to obtain fiber strands, and then the twist generated by a winding system is twisted at the initial twisting point to form an initial viscose spun yarn. An annular twisting belt is set at the front of the front roller. The viscose spun yarn passes between the front and rear side belts of the twisting belt at the initial twisting point. The motor drives the twisting belt to rotate and then twists the passed viscose spun yarn. Function, the twisting degree is transmitted upwards and downwards respectively, and the upper transmission performs pre-reverse twisting on the fiber strands opposite to the twisting direction, so that the initial twisting point is moved up, and the first fiber bundle is obtained to improve the initial twisting section strength, reduce end breakage, and the lower transmission produces pre-positive twist on the spinning section, which greatly enhances the twist of the spinning section. After the first fiber bundle passes through the twisting belt, its own pre-reverse twist immediately matches the spinning The pre-forward twisting twist of the yarn segment is offset, and then immediately re-twisted by the twisting twist to obtain the final viscose spun yarn with high strength and less hairiness.

The invention relates to a method for producing jade silkworm fiber pure 60s compact spinning yarn. Needed cheese yarn can be produced by jade silkworm fiber through processes of roving, spinning and spooling after the processes of blowing, carding and three-passage drawing. According to the method disclosed by the invention, the blowing and carding processes have the advantages that scutching is replaced by carding, the shifting is quick, the winding is prevented, and the fiber damage is reduced; the drawing process adopts the three-passage drawing, thus the weight irregularity of a silver is reduced, and the evenness of a drawn silver is improved; the roller gauge of the roving process and the tension of a cradle are appropriately enlarged, thus the roving tension is controlled, and the additional draft is reduced; a spinning machine is additionally provided with a four-roller grid ring-shaped compact spinning device; and the electric cleaning technology is optimized by the spooling process. According to the method disclosed by the invention, the quality of the compact spinning yarn which is produced through the method is better, the silver evenness, the hairness and the force index of the compact spinning yarn are all better than those of a common ring spinning yarn, and the compact spinning yarn is the qualitative material of textiles, contacting the skin of a human body, such as high-grade underwear, shirts, pillow and quilt cases, bedclothes, scarfs and socks; and weaving dresses and casual clothes made by of the jade silkworm fiber are fresh in color, smooth and gentle in silky brightness and flexible in overhanging elegant innervation.

The invention belongs to the technical field of textile, and specifically relates to a multi-component hydroscopic fiber compact sirospun single yarn, and a production method and application thereof. According to the production method, three hydroscopic fibers such as hygroscopic and sweat releasing dacron, China hemp and fine staple cotton are adopted as materials, and the multi-component hydroscopic fiber compact sirospun yarn of 36 counts is obtained through a picking process, a cotton carding process, a combing process, a drawing process, a roving process, a spinning process and a winding process. The multi-component hydroscopic fiber compact sirospun yarn is advantaged by moisture absorption, permeability, comfortableness, heat dissipation, mildew resistance, bacteriostasis and ultraviolet prevention, and can be used for civil use to produce casual clothes and sports clothes and can also be used for military use to produce military clothes such as flight suits according to the specific easy-washing, quick-drying, stiff and smooth and antibacterial wearability.

The invention discloses a device used for preventing drawn slivers from being accidently stretched and applied to a roving frame. The device comprises the roving frame and a sliver guide rack arranged on the roving frame, wherein a plurality of chain wheels and a plurality of sliver guide rollers are arranged on the sliver guide rack, a plurality of sliver cans are arranged below the plurality of sliver guide rollers, and sliver dividers are arranged on the sliver guide rollers; the plurality of chain wheels are connected through a chain, dynamic sensors are arranged on the plurality of chain wheels, dynamic bobbin sensors are arranged on the roving frame, the dynamic sensors and the dynamic bobbin sensors are connected with the input end of a PLC (programmable logic controller) through wires, and the output end of the PLC is connected with a main unit and an alarm lamp. The device has the characteristics of low invested cost, convenience in mounting and wide application range, can be matched with multiple kinds of roving frame devices and can reduce false draft of the sliver guide rollers, so that the friction on cotton slivers is reduced, improvement of finished yarn quality in a follow-up process is facilitated, and finished yarn hairiness is relatively reduced.

The invention belongs to the weaving field, and particular relates to a hemp and long-staple cotton blended 80-count yarn and a production method. <{EN2}>The blended 80-count yarn is produced by blending the hemp and the long-staple cotton in a weight proportion of 40-50:60. <{EN3}>The production method comprises the steps of cotton blending, blooming, combing, fine combing, drawing, roving, spinning and winding. <{EN4}>The 80-count yarn blended by the hemp and the long-staple cotton belongs to high count yarns and the content of the hemp is 40% and more, and realizing the purpose of producing a high count yarn when the content of the hemp is high. <{EN5}>The blended 80-count yarn can be used to produce clothes, and the fabrics obtained has the clean feeling of hemp and the soft feeling of cotton fabrics, no scratchiness and has bacteriostasis and antibacterial function; the yarn has the advantages of moisture absorption, ventilation, cool and comfort feeling; the yarn is safe and has excellent ultraviolet resistance function, antistatic performance, heatproof performance, lightfastness and no pollution; and the yarn is the first choice for producing a high-grade shirt.