77results about How to "Reduce hairiness" patented technology

The invention relates to a production method of tight sirospun yarn of combed crystal cotton. The production method comprises the following sequential working procedures: combed cotton preparation; opening, cleaning and blending of combed cotton and crystal cotton; cotton combing; drawing; roving; mixing of sirospun yarn of nylon filament; and winding. According to the invention, crystal cotton fiber is blended with the combed cotton fiber, the tight sirospun yarn of the nylon filament is added during the spinning working procedure, and a double-rough-yarn feeding device and a tight spinning device are additionally installed on a traditional ring spinning frame, so that two threads of rough yarn are simultaneously fed to a drafting region, a certain spacing is reserved between drafted fiber strands, and the drafted fiber strands are gathered, converged and twisted at the downstream of the roller chop to obtain yarn. Under the action that the fiber strand twisting triangular region is canceled due to bundling action and two threads of fiber strands are combined, the filoplume value of single yarn is obviously reduced, the yarn evenness is significantly improved, the fracture strength is greatly increased and better resultant yarn quality is obtained; and functional yarn with high strength, high hygroscopicity, cleanness, high elasticity and bacteriostatic characteristic is produced by the equipment.

The invention relates to a loose stock dyeing device and belongs to the technical field of stock dyeing devices. The loose stock dyeing device comprises a cotton grabbing device, a net forming device, a steeping device, a mangle device, a coiling device, a cold-batch fixation device, a uncoiling device, a washing device, a squeezing device, a splitting device and a drying device, wherein the cotton grabbing device, the net forming device, the steeping device, the mangle device, the coiling device, the cold-batch fixation device, the uncoiling device, the washing device, the squeezing device, the splitting device and the drying device are sequentially arranged. A loose stock net after squeezing is sent to the splitting device to be split and sent to the drying device to be dried. According to the technical scheme, the defects that continuous production cannot be performed and processing efficiency is low in the prior art are overcome, and the defects that dyeing is uneven, drying efficiency is low and energy consumption is large in drying loose stock with a net-shaped structure are overcome. In the processing process, stock damage is little, and the quality of finished stock products is ensured.

The invention relates to secondary warp slurry used in the technical field of electronic-grade glass fiber cloth. The secondary slurry comprises the following components by weight percentage: 5-10 percent of main slurry starch, 0.5-1 percent of smoothing agent, 0.5-1 percent of binder, 0.01-0.05 percent of surfactant, and the balance of deionized water. The invention is warp slurry of electronic-grade glass fiber cloth for a printed circuit board with high-precision, high-uniformity and high-performance, the electronic-grade glass fiber cloth produced by the slurry formula has the advantages of excellent fabric appearance quality, smaller fabric thickness and energy saving and environment-friendly production process. The glass fiber cloth is applicable for insulation enhancing material of the printed circuit board, and is widely used in high-end products such as mobile phone boards, notebook computers, automotive sheets, digital cameras, digital players, navigation devices and the like.

The invention provides flexible smooth yarn and a production method thereof. The raw materials of the yarn is one or more of natural fibers or chemical fibers. The yarn is characterized in that compact siro spinning is combined with low-torsion spinning, two rough yarn parallel feeding is used during a spun yarn procedure, design twist coefficient of the yarn can be lowered at 280-300, fibers are tightly held together under action of a suction groove in a spinning trigonum, two completely drafted and gathered fiber bundles obtains more twisting before plying compared with common compact siro spinning due to the fact that false twist of low-torsion spinning is higher than intensive false twist of spun yarn formation twist, and more outstanding plying effect different from common compact siro spinning structures is achieved. The produced yarn is flexible and smooth, low in residual stress, and has plying effect, strength of the yarn is increased by 10-15%, hairness is lowered by 75-80%, evenness CV% is lowered by about 0.2%, and yarn twisting number is lowered by 20-30%.

A method for preparing high performance carbon fiber by controlling tensile force is characterized in that polyacrylonitrile copolymer fiber is placed in a thermal treatment furnace at the temperature ranging from 120 to 200 DEG C, 5 to 30 MPa of tensile force is exerted, and low temperature synchronous modification treatment is conducted for 2 to 10 minutes in the presence of air dielectric. Processed fiber is processed through thermal oxidation stabilization and carbonization to obtain carbon fiber. Tensile strength of the obtained carbon fiber is higher than 3.5 GPa.

The invention discloses a production process of a thin side-stretch fabric. The production process comprises the following steps of S1 warping, S2 beam dyeing pretreatment, S3 beam dyeing, S4 soapingand color fixing, S5 foam slashing, S6 weft yarn unwinding, S7 weft yarn pretreatment, S8 weft yarn dyeing, S9 weft yarn soaping, S10 weaving and S11 after treatment. According to the production process of the thin side-stretch fabric, warp yarn is dacron spandex core-spun yarn, beam dyeing and sizing are adopted, weft yarn is subjected to cone yarn dyeing, stain fabric weave is adopted, and therefore polyester fibers are arranged on one face of the fabric, and blended tencel and Coolmax fibers are presented on the other face of the fabric. The polyester fibers have the advantages of being resistant to wear, high in brute force and the like, the face, in contact with the skin, of the tencel and Coolmax fibers has the functions of being good in hygroscopicity, resistant to static and bacteria and the like, and the comfort of the fabric is improved. Beam dyeing and sizing are adopted, fluff and nep on warp yarn can be reduced, and weaving is conducted smoothly.

The invention discloses a flame-retardant coating fabric high in moisture-penetrability. The flame-retardant coating fabric high in moisture-penetrability comprises a first base coating and a second base coating, wherein the first base coating is obtained by drying a sizing agent which is prepared from the following components in parts by mass: 100 parts of polyurethane resin, 38-42 parts of bromoethane, 19-21 parts of diantimony trioxide, 4.5-5.5 parts of zinc borate, 4-5 parts of a bridging agent, 1.6-2 parts of an accelerant, 1.4-1.6 parts of a washable agent and 9-11 parts of phosphate ester flame-retardant oil. The second base coating is obtained by drying a sizing agent which is prepared from the following components in parts by mass: 100 parts of polyurethane resin, 38-42 parts of bromoethane, 19-21 parts of diantimony trioxide, 4.5-5.5 parts of zinc borate, 4-5 parts of the bridging agent, 1.6-2 parts of the accelerant, 1.4-1.6 parts of the washable agent and 9-11 parts of phosphate ester flame-retardant oil. The flame-retardant coating fabric high in moisture-penetrability is small in smoke generation quantity, free of molten drop, high in flame-retardant effect and highly washable; the flame-retardant substance has a small possibility of hydrolyzing.

The invention relates to the technical field of impregnating agents, and discloses a film forming agent suitable for glass fibers, an impregnating agent comprising the same, and a preparation method and applications of the impregnating agent. The film forming agent comprises emulsified bisphenol A type epoxy resin and polyester type polyurethane. Through the emulsification effect of a surfactant, the interfacial energy of a system is reduced, the stability of epoxy resin emulsion is improved, and thus the function of the epoxy resin emulsion can be better exerted. The polyester polyurethane film forming agent has a large molecular weight and a strong yarn-wrapping performance and easily forms a compact film on the surface of glass fibers, thus the glass fibers are isolated from the external environment, water will not enter the cracks of the glass fibers, the elasticity and wear resistant performance of yarns are improved, the anti-fatigue performance of yarns is strengthened, at the same time, the bundling force is high, and the phenomenon of yarns such as natural draping, non-uniform tension force, and the like, is effectively relieved.

The present invention relates to a yarn clearing device for yarn spool processing. The yarn clearing device comprises a working table, a yarn collecting device and a clearing device, wherein the rightend of the upper end surface of the working table is provided with the yarn collecting device, the front left side of the yarn collecting device is provided with the clearing device, and the lower end of the clearing device is mounted on the upper end surface of the working table. According to the yarn clearing device for yarn spool processing, defect points of impurities such as hairiness on thesurface of a yarn are cleared by adopting a design concept of multi-point clearing, and the impurities such as the hairiness in forward and reverse states on the yarn can be cleared, so that the yarnclearing degree is improved; and cutters with different sizes are adopted for adapting to yarns with different sizes and types, so that the application range and the utilization rate of the yarn clearing device are expanded and improved.

A production method of an impregnating agent for low-cost electronic-grade glass fiber yarns is designed in the invention. The impregnating agent mainly comprises 93-95 parts of softened water, 1.8-2.4 parts of unmodified high-amylase corn starch, 1.8-2.4 parts of modified potato starch, 1.3-1.7 parts of a vegetable oil elusion, 0.1-0.3 parts of a plasticizing agent and 0.2-0.4 parts of a cationic softening agent, and the production method is completed through a certain preparation method. Electronic-grade glass fiber yarns produced through using the impregnating agent have the advantages of excellent performances, low cop hairiness rate, uniform yarn stiffness, and complete satisfaction of subsequent operation use performances, and the cost of the impregnating agent for 1t of yarns is low, so the production cost of 1t of the yarns is saved.

The invention provides a multifunctional polyester vortex spinning fabric and a production method thereof. The fabric is woven by Micronova fiber and blended cation polyester; the production method comprises the steps that the multifunctional polyester vortex spinning fabric is finally obtained after spinning, weaving and finishing are conducted on the Micronova fiber taking up the dry weight ratio of 88.5%-91.5% and the blended cation polyester taking up the dry weight ratio of 8.5%-11.5%, wherein the spinning step comprises opening picking, cotton carding, drawing, Murata vortex spinning anddouble twisting, the weaving step comprises yarn steaming, waxing and machine weaving, and the finishing step comprises knitted fabric singeing, boiling and bleaching, dyeing, soft winding processing, dehydrating, drying and finishing. By means of the method, the antibacterial, wear resistant and ultraviolet resistant fabric with light and soft fabric surface and better permeable preventing performance can be obtained.

The invention relates to a ring-spinning semi-compact spinning process. Rough yarn is drawn and twisted by a front bottom roller nip of an original ring-spinning machine; a semi-compact spinning device which can regulate the length of a drawing area and the length of a weak twisting area is arranged at the downstream of a front rubber roll and a front bottom roller of the original ring-spinning machine; wherein, the semi-compact spinning device comprises a doffing roller, a doffing rubber roll, aprons and a device base; the aprons are sleeved at the outside of the front bottom roller of the original ring-spinning machine and the doffing rubber roll of the semi-compact spinning device; the doffing roller and the doffing rubber roll are arranged on the device base; the device base is fixed with a rack of the original ring-spinning machine, and the rough yarn is transmitted to a doffing roller nip after being drawn by the front bottom roller nip of the original ring-spinning machine and drawn out from the position between the doffing roller and the doffing rubber roll, thereby preparing twisted yarn. The ring-spinning semi-compact spinning process has the advantages that the spun yarn evenness is improved and the hairiness is greatly reduced, thereby greatly reducing the defects of fabric neps and color neps and significantly improving the anti-pilling grade of fabric.

The invention discloses a high-moisture-penetrability waterproof fabric which comprises basic cloth and a coating layer positioned on one side of the basic cloth, wherein a second priming coating is obtained by drying slurry consisting of the following components by weight percent: 100 percent of polyurethane resin, 38-42 percent of bromoethane, 19-21 percent of antimonous oxide, 4.5-5.5 percent of zinc borate, 4-5 of a bridging agent, 1.6-2 percent of a promoting agent, 1.4-1.6 percent of an anti-washing agent and 9-11 percent of phosphate antiflaming fuel; a surface coating is obtained by drying slurry consisting of the following components in percent by weight: 100 percent of polyurethane resin, 9-11 percent of bromoethane, 4.5-5.5 percent of antimonous oxide and 0.9-1.1 percent of zinc borate; antiflaming acrylic yarns consist of the following components in percent by weight: 4 percent of acrylic, 3.5-4.5 percent of cotton and 0.9-1.1 percent of aramid fibers; the bridging agent is isocyanic acid ester; the promoting agent is an organic ammonia salt; the anti-washing agent is trimethylolpropane poly-material. The high-moisture-penetrability waterproof fabric is long in antiflaming time, small in smoke generation amount, and good in antiflaming effect and has the washing-resistant effect, and the hydrolysis of antiflaming substances is avoided.

The invention relates to a cotton spinning industry spinning method, and especially relates to a spinning method combining embedding spinning with compact siro spinning; in a compact siro spinning process, two chemical fiber filaments are respectively fed on two yarn fiber strands by a control jaw between a front roller and an abnormity gather pipe. The novel spinning method can utilize cotton yarns of short fiber length, has lower requirements for yarn fiber length, thus reducing production cost; the method is high in efficiency, low in consumption, short in process, saves energy, thus solving the problems that dissolved chemical fibers are low in intensity, flurry and complex in fibers, and fabrics is poor in wear resistant performance and tearing fastness; the method is simple in technology.

Provided is a process for producing polyester viscose corn-spun yarn. Ordinary polyester medium-length fibers, viscose medium-length fibers, high-strength polyester medium-length fibers and spandex filaments are adopted as the raw materials, the ratio of the polyester medium-length fibers to the viscose medium-length fibers is 65:35, and the ratio of the ordinary polyester medium-length fibers to the high-strength polyester medium-length fibers is 60:5; polyester fibers are subjected to scutching, cotton carding and drawing to be prepared into drawn slivers A and rough yarn; the viscose medium-length fibers are subjected to scutching, cotton carding and drawing to be prepared into drawn slivers B and rough yarn; the drawn slivers A and the drawn slivers B which are subjected to roving are mixed with the spandex filaments to be prepared into drawn slivers C, and drawn slivers C are subjected to spinning and automatic winding to be prepared into yarn, and the yarn is inspected, packed and warehoused. The obtained yarn is straight, clean, good in toughness and good in dimension retainability.

The invention discloses a production method of photoelectronic polyester combed cotton compact yarn. Based on weight percentage, the method comprises the steps of combed cotton preparation, blowing mixing of combed cotton and photoelectronic polyester, cotton carding, drawing, roving, spinning and spooling. According to the invention, the photoelectronic polyester fiber and Xinjiang first-class raw cotton are blended and subjected to compact spinning in the spinning process; due to the bundling effect, the strand twisting triangle area is canceled; the hairiness value of single yarn is obviously reduced, and the evenness is remarkably improved; and since the combed cotton is used as a raw material for re-spinning, the neps are remarkably reduced, the quality of the resultant yarn is better, and the functional yarn with brightness, high grade and cooling antibacterial healthcare effect is produced.

The invention relates to an antibacterial positive ion polyester blended yarn and a preparation process thereof. The preparation process includes the steps: mixing plasmas treated positive ion polyester, cotton fibers and chitosan fibers; sequentially performing opening and picking, carding; secondary drawing, roving, spinning and spooling on mixture to prepare antibacterial positive ion polyesterblended yarn. Parameters of a spooling process include that spooling speed is 950-1100m/min, tension is 6-8cN, the count of the finally prepared antibacterial positive ion polyester blended yarn is 20-60Ne, breaking strength is 165.2-369.6cN, breaking elongation is 8.19-17.69%, moisture regain is 3.29-6.75%, and escherichia coli and staphylococcus aureus resisting ratio can reach 70% or more. Thepreparation process solves the problems of poor antibacterial capability of positive ion polyester and spinning property of the chitosan fibers, and the prepared yarn has less hairiness and excellentantibacterial functions.

The invention belongs to the technical field of non-woven fabric production and manufacturing, and particularly relates to a method for producing a non-woven fabric through gas-stimulation reinforcedfiber web. Gas-stimulation reinforcement is conducted on the fiber web through airflow, a non-woven fabric is produced; the fiber web is obtained through at least one of four web formation modes of carding web formation, airflow web formation, spinning web formation and melt-blowing web formation; fiber of the fiber web is natural fiber or conventional chemical fiber or differential fiber or functional fiber or high-performance fiber. Compared with a spunlaced non-woven fabric, the whole process of the method does not need water, energy conservation and environmental friendliness are better achieved, the method is updating and upgrading of the spunlaced process, production can be conducted by transforming equipment on an exiting non-woven production line, and the method is suitable for scale production; compared with a spunlaced non-woven fabric, defects of oil stains formed by gas-stimulation reinforcement, and the method has the advantages of being hygienic and environmentally friendly.