35results about How to "Stable yarn structure" patented technology

The invention relates to an unequal rendezvous point spinning method of an asymmetrical beam splitting spread filament, a composite yarn and application. The composite spinning method comprises the steps of: adopting a splitter and a filament spreading device; and splitting two beams of filaments into 2*2 beams including two upstream beams and two downstream beams asymmetrically through the splitter; enabling the four beams to enter into respective filament spreading devices to form filament meshes; then feeding the filament meshes at different positions; wrapping a short fiber whisker strip in a twisting triangular zone and multi-level converging to compound the filament mesh wrapping composite yarn. The method is suitable for spinning of protective, soft, smooth and high-count composite yarns of fibers which are ultra-short, easy to drop scraps and easy to generate flying and shorter and weaker fibers. The obtained composite yarn is a filament mesh wrapping six-shafting composite yarn at least having three convergent shafts and at least two rendezvous points being not on the same horizontal line. The composite yarn has four ways of the convergent shafts and can be used for weaving soft, abrasion-resistant, beautiful and comfortable textiles with clear texture, high intensity and pilling resistance and high-level fine fabrics.

The invention relates to a non-equal convergent point double tow-screen composite yarn, a spinning method and application of the composite yarn. The composite yarn with six lines of shafting is formed by at least compositing three convergence shafts, double tows and screens at least with two convergent points not on the same level and staple fiber strands and can be used for weaving fabrics and high-grade fine fabrics which have clear textures and high strength, are soft and wear-resistant, are resistant to fuzzing and pilling and are beautiful and comfortable. The spinning method realizing the composite yarn is characterized by adopting a splitting machine with yarn spreading function and left and right yarn spreading machines and splitting two filaments into 22 tows asymmetrically with the splitting machine, wherein two tows are directly fed into a front roller jaw and another two tows enter respective yarn spreading machine to be spread into screens and then are fed into the front roller jaw and form the multi-stage converging and compositing double tow-screen composite yarn which reinforces tows of the two staple fiber strands and protects the screens in the twisting triangular space. The method is suitable for spinning protective, soft and smooth high-count composite yarns with super-staple fibers, fibers liable to drop of chips, fibers liable to flying and shorter and weaker reclaimed fibers.

The invention relates to a flexible conductive yarn and a preparation method thereof. The conductive yarn constructs a three-layer concentric sheath core structure by using a mechanism of internal andexternal transfer of blended yarn. An outer layer is wrapped with a polyester staple fiber, which has good electrical insulation and mechanical properties, can effectively protect a core layer and isolates a current; the core layer is formed by a continuous regenerated cellulose fiber-based conductive medium and has good electrical conductivity; and an intermediate layer is composed of a heat-shrinkable acrylic fiber, which effectively stabilizes the yarn structure and isolates the conductive medium for protecting the core layer. The mechanism of internal and external transfer of the blendedyarn is utilized to construct the three-layer concentric sheath core structure to make the conductive yarn have excellent flexibility, stable structure and characteristics of being washable.

The invention relates to a coaxial tow net composite yarn prepared from tows in different numbers, a spinning method and application. The tow net composite yarn is a three-layer tow net composite yarn with tows and silk nets with different filament numbers and staple fiber strands mutually reinforced and wrapped and at least an axis coaxial with the staple fiber strands and can be used for weaving fabrics and fine high-grade fabrics which have clear textures, are soft and wear-resistant, have high strength, are resistant to pilling and are beautiful and comfortable. The spinning method realizing the composite yarn is characterized by adopting a silk spreading and splitting device to split filament tows into two asymmetric silk layers after spreading the filament tows into silk layers, wherein one silk layer goes straight or is led downward and is spread into a silk net by a silk spreading device; the other silk layer descends or ascends and is clustered; and the two silk layers and the staple fiber strands form upper, middle and lower axes to be synchronously fed into a front roller jaw and form the three-axis tow net composite yarn in a twisting triangle area. The method is suitable for spinning the protective, soft, smooth, clean, high-count and ultrafine-count composite yarns with ultrashort fibers liable to flock drop and flying and shorter and weaker recycled fibers.

The invention relates to a coaxial bidirectional filament spreading device of a beam-splitting filament and application. The filament spreading device is composed of a centering yarn guide hook, a spreading disk for spreading the filament beam, a splitting separator, a filament spreading roller for spreading a splitting filament layer in a bidirectional way, a driving roller at the same speed as a front roller and the like, is connected to a fixed frame and is mounted on a ring throstle through the fixed frame. A method for spreading the beam-splitting filament coaxially and in the bidirectional way comprises the steps of: locating a filament on a central line of a flat bottom groove of the spreading disk by the centering yarn guide hook and winding on the spreading disk to finish the spreading of the filament beam; then splitting the filament symmetrically by the splitting separator to form two filament beam layers with a certain interval, enabling the two filament beam layers to enter into respective one-way filament spreading zones and respectively spreading the filament beam layer towards left and right under the action of a screw thread groove to form a filament mesh; and outputting the filament mesh by surrounding and being close to a driving roller of the front roller. The filament spreading device can be applied to spinning of protective type soft, smooth, high-count composite yarns and superfine branches of fibers which are ultra-short, easy to drop scraps and easy to generate flying and shorter and weaker fibers.

The invention discloses a method for carrying out stone washing on a soft coarse-wooled fabric, aiming to providing a method for carrying out stone washing on a soft coarse-wooled fabric with a distressed, faded, clear and natural surface and less villi, wherein the fabric is high in resilience and soft in handfeel, the colors of the front and back surfaces of the fabric have a large contrast, and the fabric has a retro nostalgic feeling. The method is characterized by comprising the steps of carrying out mercerization on fibers, spinning yarns, spinning a fabric, carrying out curing and shrink-resistant treatment on the fabric, forming a garment, carrying out dyeing and stone washing on the garment, and drying and tidying up the garment. According to the method, through carrying out shrink-resistant treatment by two times in the earlier stage and carrying out stone washing by using vesuvianite into which proteases and a detergent are soaked, the defect that common wool fabrics have a serious milling phenomenon after being subjected to sand washing is successfully controlled, and excessive damage on fabrics in the process of doing old is effectively prevented, thereby prolonging the service life of garments.