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576results about How to "Less hairy" patented technology

Polysulfonamide core-spun and wrapped composite yarns and conditioning friction tight composite spinning device thereof

The invention relates to polysulfonamide core-spun and wrapped composite yarns produced in the textile industry. Core-spun yarns consist of core yarn polyester yarns and externally-wrapping polysulfonamide fibers, and flame-retardant viscose filaments wrap the core-spun yarns. A conditioning friction tight composite spinning device for the composite yarns comprises a pair of dust cage friction false twisters corresponding to each spinning spindle, wherein a dust cage consists of two thin-wall sleeves and is fixed on an internal air suction pipe; the internal air suction pipe is connected with a main air suction pipe through a rubber pipe; the main air suction pipe is connected with a negative pressure fan; a conditioning groove is formed above the dust cage; a core yarn tensioner and a core yarn bobbin are arranged above a front roller and a front rubber roller; and a wrapped yarn tensioner and a wrapped yarn bobbin are arranged above a yarn guide hook. The invention has the advantages that: the polysulfonamide core-spun and wrapped composite yarns have a unique structure, a few hairs and high strength and can replace the conventional plied yarns, doubling and twisting processes are eliminated, the ration of coarse yarns can be improved by 40 percent compared with that of the conventional process, the tearing strength of the prepared fabric can be improved, and the structure of a ring spinning frame is not changed when the device is adopted.
Owner:SHANGHAI TEXTILE GRP DETECTION STANDARD CO LTD +1

Yarn for preparing fabric with bundling structure and preparation method thereof

ActiveCN101956271ANot prone to hairinessLess hairyYarnWater solubleEngineering
The invention provides a yarn for preparing a fabric with a bundling structure and a preparation method thereof. The yarn is prepared by the doubling and back twisting of a sliver A and a sliver B, wherein a first twist of the sliver A is a, the sliver B does not have a twist or has a first twist b, and a second twist of the back twisting is c. The yarn is characterized in that: the sliver B is a conjunct of water soluble vinylon and a fine denier chemical fiber long yarn. The preparation method of the yarn comprises the following steps of: applying the first twist a to the sliver A; combining the water soluble vinylon with the fine denier chemical fiber long yarn to form the sliver B, and not twisting the sliver B or applying the first twist b to the sliver B, wherein the twisting direction is the same as that of the sliver A; and doubling the sliver A and the sliver B on a doubling and twisting machine and then performing back twisting on a two-for-one twisting machine to obtain the yarn, wherein the second twist c is applied during the back twisting. When the yarn of the invention is used to prepare the fabric, the water soluble vinylon is dissolved by a vinylon dissolving process, the sliver A does not have a twist or has a low twist, and the fine denier chemical fiber long yarn is wound on the sliver A to form the bundling structure.
Owner:JIANGSU JIANLU WOOLEN +5

Blended spinning method of long spinning and damp spinning for bast fibers

ActiveCN101418484ASmooth yarn bodyLess hairyYarnWear resistanceMaterials science
The invention provides a method integrated with long spinning, wet spinning and blended spinning for bast fibers. The method comprises the following steps: the bast fibers are scotched into flax; the flax is humidified and soaked for a period of time; the flax is carded into long flax; and the long flax is subjected to matching, silvering, drawing, roving, scouring, bleaching, spinning, drying and winding. The method is characterized in that after the bast fibers are bleached, the obtained rove of the bast fibers and rove or filaments of other fibers are blended on a spinning machine. With the method, blended fibers are not bleached and scoured together with the bast fibers, so the defect that the performance of blended yarn is affected due to the damage of bleaching and scouring agents to the blended fibers in the prior wet spinning and blended spinning is overcome, and the obtained blended yarn has the characteristics of bright and clean yarn body, less hairness, evenness and good wear resistance. In addition, the method can fully play a role in respective advantages of the bast fibers and the blended fibers, complement respective disadvantages of the bast fibers and the blended fibers, has simple process, is favorable for improving the quality of blended yarn of the bast fibers, and realizes the high count, high grade and diversification of varieties of the bast fibers.
Owner:DONGHUA UNIV

Spinning method for performing damp heat ironing treatment to fiber strands

The invention relates to a spinning method for performing damp heat ironing treatment to fiber strands, and belongs to the technical field of textile processing. A damp heat ironing treatment device is additionally installed in a twist trigonal zone in front of a front leather roller and a front roller of a ring spinning frame and used for performing damp heat ironing treatment to fibers in the fiber strands; the damp heat ironing treatment device comprises a base, a humidifying component and an ironing treatment component; the damp heat ironing treatment device can perform humidifying to the fibers in the fiber strands in the twist trigonal zone and then perform high-temperature ironing treatment, so that the rigidity of the fibers is instantaneously reduced, and the flexibility of the fibers is enhanced; and meanwhile, the movement of the fibers in the fiber strands in the twist trigonal zone is controlled. The spinning method can remarkably reduce the fibrous yarn of resultant yarn, enhance the strength of yarn formation and reduce the phenomenon of kinking due to twisting. The damp heat ironing treatment device is convenient for a knitter to operate, has little influence on the operation of the knitter, and is suitable for cotton fibers, wool fibers, fibrilia, polyester fibers, polyamide fibers and acrylic fibers.
Owner:WUHAN TEXTILE UNIV

Warp knitted fabric containing cotton and processing method for warp knitted fabric

The invention discloses a warp knitted fabric containing cotton. The warp knitted fabric containing the cotton is formed by face filaments and middle filaments or face filaments, middle filaments and bottom filaments in a warp knitting mode, wherein the face filaments are polyester filament yarns, the middle filaments are natural fiber yarns, the bottom filaments are spandex stretch yarns, and the natural fiber yarns are processed through spinning, singeing, reeling, concentrated alkaline mercerizing, drying, wet waxing, dry waxing, rewinding and the like. The natural fiber yarns have the advantages of being high in strength, even in yarn evenness, good in wear resistance and the like, and can meet the requirement of warp knitting, and thus the natural fiber yarns can be used on a 28-stitch high stitch length warp knitting machine to serve as raw knitting materials of the warp knitted fabric containing the cotton. The natural fiber yarns contained in the warp knitted fabric containing the cotton have the skin friendly performance, and the warp knitted fabric containing the cotton is suitable for being worn by all people. The invention further discloses a processing method for the warp knitted fabric containing the cotton.
Owner:楠华技术信息(江苏)有限公司

Burr-proof thermoplastic polyurethane elastic body conveying belt for food industry and manufacture method thereof

The invention relates to a burr-proof thermoplastic polyurethane elastic body conveying belt for food industry, which has the total thickness being 1.2 to 1.5mm and sequentially comprises a covering surface layer, surface layer fabrics, a pasting layer and bottom layer fabrics from top to bottom, wherein the fabrics are respectively formed by two warp yarns and one weft yarn through plain interweaving, in addition, the bottom layer fabrics are soaked with polyurethane (PU) glue water, and both the covering surface layer and the pasting layer are made of thermoplastic polyurethane (TPU). A manufacture method comprises the following steps that: the surface layer fabrics and the bottom layer fabrics are formed, so the fabric surface temperature reaches 180 to 190 DEG C, the front side and the back side of the surface layer fabrics are subject to prime coating by aqueous polyurethane glue water, and then, the surface layer fabrics are placed into a baking oven to be dried; the bottom layer fabrics are soaked into a soaking tank of the aqueous polyurethane glue water, are rolled by an anilox roller and are placed into the baking oven to be dried; the surface layer fabrics and the bottom layer fabrics are calendered and pasted; and a TPU covering surface layer is calendered on the surface of a semi-finished product. The burr-proof thermoplastic polyurethane elastic body conveying belt and the manufacture method have the advantages that periphery burrs are prevented from being mixed into food in the food conveying process, the food pollution is reduced, the burrs are reduced, the damage to two sides of the conveying belt is reduced, the post hemming tidying is not needed, and the production efficiency is improved.
Owner:SHANGHAI YONGLI BELTING +1

China hemp native fiber multicomponent blended yarn and preparing method thereof

The invention provides a China hemp native fiber multicomponent blended yarn. The China hemp native fiber multicomponent blended yarn is high in brute force, good in evenness, and anti-pilling, has a soft and smooth yarn body, and is obvious in characteristic and stable in quality. The China hemp native fiber multicomponent blended yarn is blended of 25% of filaments, 15% of China hemp native fibers, 40% of China hemp viscose fibers and 20% of long stapled cotton and made through embedding spinning technique. The invention further provides a preparing method of the China hemp native fiber multicomponent blended yarn. The preparing method comprises the following steps: a, maintenance pretreatment of the China hemp native fibers is conducted, and softening antistatic oiling agents are spayed on the China hemp native fibers; b, blowing and carding of the China hemp native fibers are conducted; c, the processed China hemp native fibers and the long stapled cotton are combed and blended into strips; d, the China hemp viscose fibers are processed into strips independently; and e, the blending combining strips of the China hemp native fibers and the long stapled cotton, and the China hemp viscose fibers are pre-drawn and mixed, then roving and embedding finespinning are conducted, and the filaments are combined during embedding finespinning.
Owner:江苏悦达棉纺有限公司

Tencel blended yarn and preparation method thereof by vortex spinning

ActiveCN102747477ALess hairySuitable yarn requirements for knitted garmentsContinuous wound-up machinesOpen-end spinning machinesYarnCarding
The invention discloses a tencel blended yarn. The tencel blended yarn is characterized by consisting of the following components in percentage by weight: 20-50 percent of tencel fiber and 50-80 percent of chemical fiber. The invention also discloses a preparation method for the tencel blended yarn. The preparation method comprises the steps of raw material selection, cotton winding, cotton carding, mixing and blending and vortex blending. Control parameters comprise that the spinning speed is 330-360turn / min, the total draft multiple is 238-245; the main draft multiple is 28-32, the BR start rate is 120, the temperature of a workshop is controlled to 25-28DEG C and the humidity is controlled to 60-65 percent. The tencel blended yarn disclosed by the invention has the advantages of less feather and suitability of meeting the requirement on yarns for knitted clothing. In addition, the tencel fiber is successfully spun by the vortex spinning for the first time; and rougher yarns with great yarn twist can be generally spun by traditional rotor spinning. According to the preparation method disclosed by the invention, the defects are overcome and functional fibers are spun by vortex spinning so as to improve the quality of yarns.
Owner:ZHEJIANG SHUANGDUN TEXTILE TECH CO LTD
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