165results about How to "Reduce fuzz" patented technology

The invention discloses a polyester POY spinning finish, comprising 81-88% of lubricating agent, 3-5% of emulsifying agent, 4-7% of tow collecting agent, 3-5% of antistatic agent and 2-4% of additive by weight. The invention also discloses a production method of the polyester POY spinning finish. The product not only can endow the fibers with good processability but also is environment-friendly, overcomes the phenomenon that the finish corrodes equipment and can ideally solve the problem of easy cohesion on guide rolls during apparent cohesion and reduce fluff and broken yarns.

The present invention relates to the production of woven or knitted fabrics or fabrics, which have high yarn strength, can be woven or knitted with high-speed looms or knitting machines, will not cause problems such as thread breakage, and have high stretchability sex. The present invention also prepares a composite twisted yarn, which at least twists a spun yarn and a water-soluble yarn, the twist direction of the composite twisted yarn is opposite to that of the spun yarn, and satisfies the following necessary conditions (1 ) or (2): (1) The twist number of the composite twisted yarn is 1.3-3 times that of the spun yarn, and the ratio (weight ratio) of the spun yarn to the water-soluble yarn is spun yarn/ Water-soluble yarn = 20/80-98/2; (2) further twist the elastic yarn (2) stretched to 2-5 times, and the twist number of the composite twisted yarn relative to the twist number of the spun yarn is 0.3-3 times, while the ratio (weight ratio) of spun yarn (1) to the above-mentioned elastic yarn (2) is spun yarn (1)/elastic yarn (2)=50/50-99.9/0.1, spun yarn (1) and the total amount of elastic yarn (2) and the ratio (weight ratio) of water-soluble yarn (3) is: total amount of spun yarn (1) and elastic yarn (2)/water-soluble yarn (3)= 30/70-99/1.

Apparatus for producing spread fiber bundles by strategic use of tension control throughout the device and use of higher differential speeds between driven rollers and line speed of the running fiber bundle are provided herein, along with methods for producing spread fibers, prepregs, and articles of manufacture therefrom.

The invention discloses a colored polyester filament yarn with a diamond blinking effect and a method for manufacturing the colored polyester filament yarn. The method includes steps of preliminarily crystallizing and drying super-lustrous polyester chips; melting and extruding the dried super-lustrous polyester chips via a screw extruder and simultaneously injecting color master-batches into the screw extruder by a color master-batch injector; and spinning to obtain a winding yarn; laterally blowing wind to cool down the spun winding yarn; applying oil to the winding yarn by an oiler; feeding the winding yarn to perform drafting for the winding yarn in a drafting procedure; and adding the winding yarn into a net and winding and molding the winding yarn. The colored polyester filament yarn and the method have the advantages that the polyester filament yarn realizes a bright and lustrous effect, the length-width ratio of a flat hole pattern is increased to the greatest extent on the premise of guaranteeing high spinnability, and the style of a product can be affected greatly (a fabric is in a scaly style); fuzziness and broken ends can be greatly reduced by the method; and energy consumption and the production cast can be greatly reduced.

The invention relates to a washing method for a spinneret plate, and mainly solves the technical problems in the prior art that the spinneret plate cannot be cleanly washed, gel is adhered to the surface of the spinneret plate, a spinning solution at the outlet of a spinneret hole overflows, and polyacrylonitrile protofilament has more broken filaments and more thin filaments and is high in fiber breakage rate. The washing method for the spinneret plate comprises the following steps of disassembling the spinneret plate from a spinning assembly; immersing the spinneret plate in a solvent in a container; then immersing the container in water bath; washing by adopting a mode of combining temperature rising with ultrasound; taking out the spinneret plate after the washing is completed; blowing the surface of the spinneret plate by gas which is precisely filtered after the spinneret plate is dried; completing the washing. According to the technical scheme, the problems are well solved, and the washing method can be used in a device washing process after the spinning of the polyacrylonitrile protofilament.

The process of producing superfine full polyester fiber blanket includes the following steps: preparing DTY yarn material, weft knitting, dyeing or printing, opening and stoving, fixing color, finishing, heat setting, back pilling and finishing, clipping, and sewing to form the blanket. The production process features the re-networking of DTY yarn before weft knitting to constitute single strand high F superfine denier yarn, and this can reduce broke filament, and result in easy control of feeding tension, homogeneous tension and density. The present invention can produce high quality full polyester fiber blanket with fluff height of 4.5-12 mm, unit area weight of 300-500 g/sq m, plumpy fluff.

The invention provides a method for producing abnormal superbright fully drawn yarns-low stretch yarns, namely a method for preparing abnormal FDY polyester filament yarns into DTY polyester filament yarns. The main DTY technological flow is as follows: after stretching and twisting, heat-setting, oil application and winding of the abnormal FDY filament yarns, the FDY polyester filament yarns are prepared into the DTY polyester filament yarns. The method solves the problems of poor abnormity maintenance and size stability of the abnormal DTY polyester filament yarns and boardy hand feeling of the FDY polyester filament yarns and compensates the defects in the prior art.

The invention discloses a polyphenylene sulfide short fiber spinning oil and a preparation method thereof. The polyphenylene sulfide short fiber spinning oil comprises the following compound raw materials by weight percentage: 25-50 percent of antistat, 15-25 percent of smoothing agent, 18-35 percent of saturant, 5-20 percent of emulsifier and 2-8 percent of modifier. According to the weight percentage of each raw material component, the accurately metered antistat, smoothing agent, saturant, and emulsifier are pumped into a reaction pot, heated to 50-80 DEG C, and uniformly mixed; the modifier is pumped into the reaction pot, agitated for 1-3 h, cooled, filtered, unloaded and packaged. The polyphenylene sulfide short fiber spinning oil has good anti-static electricity performance, smoothness, saturation and the like, is uniform and stable in oil loading, can ensure smooth operation of spinning production and postprocessing working procedure, and satisfies production requirements on spinning effect and the mechanical performance of the fiber.

The invention discloses finishing oil for the manufacturing of continuous silicone carbide fiber and an application process thereof. The finishing oil for the manufacturing of the continuous silicone carbide fiber is a modified organic silicone oil water solution or emulsion prepared by adding water into modified organic silicone oil, and the modified organic silicone oil is polysiloxane containing different active groups. The finishing oil has a simple preparation method. The finishing oil is applied to the manufacturing of the continuous silicone carbide fiber, has the characteristics of simple process, convenient operation, easy implementation on production lines of SiC fiber and the like, can effectively reduce the mechanical damage to PCS fiber when the PCS fiber passes through guide rolls, reduce broken filaments and broken ends of the fiber, improve the convergence and filament bundling strength of the fiber, and improve the mechanical properties and the uniformity of the prepared SiC fiber.

The invention discloses a method for preparing ultra-fine denier skin-affinity polyester filaments. The method comprises the steps of POY precursors, pre-interlace, first feeding roller, first deformation heat box, cooling plate, false twister, second feeding roller, intermediate interlace, second heat box, third feeding roller, oiling roller, DTY winding shaping and spinning cake inspection, wherein the intermediate interlace procedure can be removed, the temperature of the first deformation heat box is 165 DEG C-175 DEG C, the temperature of the second heat box is 130 DEG C-140 DEG C, the draft ratio is 1.58-1.68, the false twist ratio is 1.66-1.80, and the interlace air pressure is 0.03-0.15 MPA. The method has the advantages of being simple and easy to operate, fabric prepared by polyester filaments prepared by means of the method has the advantages of being more flexible, good in comfort performance and strong in visual and tactile feeling.

The invention discloses a preparation method of PPS fibers with self-extinguishment and free of molten drops. The preparation method comprises the following steps: soaking a pure polyphenylene sulfide fiber serving as a raw material into an oxidant solution, controlling the soaking temperature and the soaking time by selecting the type of an oxidant, adjusting the oxidization degree of sulfur atoms on the surface of the fiber, performing solvent separation after an reaction, and washing and drying the PPS fibers. The preparation method is simple and feasible, and a complicated fiber modification method is eliminated; the performances, such as oxidization resistance, high-temperature resistance, creep resistance and molten drop resistance, of the prepared PPS fibers are greatly improved.

The invention relates to a polyethylene fiber composite cloth with high protection performance and preparation and application thereof, a preparation method comprises the following steps: 1) high-fineness ultra-high molecular weight polyethylene fibers are sequentially subjected to unwinding and tiling, heating and drafting, gluing and drying to obtain unidirectional polyethylene fiber cloth; (2) carrying out cross lamination and compounding on multiple layers of unidirectional polyethylene fiber cloth, rolling together with an isolating layer, and then carrying out vacuum hot-pressing shaping treatment, so as to obtain polyethylene fiber composite cloth; wherein the activation temperature of the glue is 50-150 DEG C, and the glue content is 5-30wt%; and the polyethylene fiber composite cloth is used in a soft bulletproof armor or a hard bulletproof armor. Compared with the prior art, the preparation method has the advantages that conventional high-denier monofilament and bunched ultra-high molecular weight polyethylene fibers are adopted, heating and drafting are carried out after unwinding and tiling, the activation temperature and the gluing amount of glue are controlled, and vacuum hot-pressing shaping treatment is carried out after compounding, so that the prepared polyethylene fiber composite cloth is good in appearance quality, high in bulletproof performance and small in discreteness.

The invention relates to a combined cleaning method for a spinneret plate with the aim of solving technical problems in the prior art such as long cleaning time, incomplete cleaning, high rate of plugged holes of the spinneret plate and many broken filaments of original filaments. The combined cleaning method for the spinneret plate is adopted and comprises following steps: detaching the spinneret plate on a spinning assembly, soaking the spinneret plate dipped with spinning solution to solidified solution, taking out the spinneret plate after spinning solution of the spinneret plate is solidified and tearing off solidified spinning solution on the spinneret plate; putting the spinneret plate into a container holding a cleaning solvent and putting the container into an ultrasonic water bath for cleaning; and putting the cleaned spinneret plate into an air-blast drying box for drying; and finally, utilizing gas filtered by a filter core of certain filter precision to blow and sweep the dried spinneret plate for less than 1min. The technical scheme of the combined cleaning method for the spinneret plate helps solve the problem and can be used for the equipment cleaning process following spinning of original filaments polyacrylonitrile.

The invention discloses a two-sided down coat fabric capable of being filled with velvet and a production method thereof. The two-sided down coat fabric capable of being filled with velvet is characterized in that warp yarn is chinlon, weft yarn is polyester, and the linear density of the polyester and the chinlon is 15-30 D. The production method for producing the two-sided down coat fabric capable of being filled with velvet comprises the steps of warping, sizing, re-beaming, warp separation, drafting and weaving. The polyester and the chinlon with the linear density of 15-30 D are adopted as the warp yarn and the weft yarn to be woven and then undergo the steps of warping, sizing, re-beaming, warp separation, drafting and weaving so that the two-sided down coat fabric capable of being filled with velvet is obtained, the tradition that the velvet filling can be performed only after two layers of fabrics are sewn is broken, and the direct velvet filling is achieved.

A circuit board is provided with an insulating substrate (1) and a circuit (3) formed on the insulating substrate (1). The circuit is provided with a plated base layer (4) whereupon a pattern is formed by irradiating a metal thin film (2) applied on a surface of the insulating substrate (1) with a laser beam (L) along the profile of the circuit (3) and partially removing the metal thin film (2) from the profile of the circuit (3). The circuit is also provided with a Cu-plated layer (5), an Ni-plated layer (6) and an Au-plated layer (7), which are formed by metal plating, on a surface of the plated base layer (4) in this order from the side of the plated base layer. Between the Ni-plated layer (6) and the Au-plated layer (7), a first intermediate plated layer (8) having a less noble metal than Au with respect to reference electrode potential is formed in contact with the Au-plated layer, and a second intermediate plated layer (9) having a more noble metal than the metal in the first intermediate plated layer with respect to the reference electrode potential is formed in contact with the first intermediate plated layer (8).

There is provided an endoglucanase enzyme, which is useful for reducing fuzz of regenerated cellulose-containing fabrics, improving the touch and appearance, color clarification, localized variation in color, reducing stiffness and using it as components of a detergent, as well as deinking waste paper and improving freeness of paper pulp. A cDNA coding for the endoglucanase enzyme NCE5 was cloned and its DNA sequence and amino acid sequence derived from it were determined.

The invention discloses a textile fabric setting process. The setting process comprises the following steps of S1, weaving; S2, blank fixing; S3, front surface singeing; S4, boiling off; S5, fluff etching; S6, dyeing; S7, scouring and etching; S8, cloth drying; S9, bottom surface fluff sucking; and S10, finished product setting. In order to overcome the defects in the prior art, the invention provides the textile fabric setting process which is simple and capable of effectively reducing fluffing or linting on the surface of a SORONA textile fabric, effectively improving the anti-wrinkle performance and the tensile resilience and reducing the shrinkage of the fabric.

The invention relates to a yarn guiding plate, a yarn receiving device, and a work position operation method. A yarn guiding plate 30 is provided with a yarn guiding finger 34, which comprises a veil 19a used for guiding a to-be-received yarn 19 in a state of connection with a yarn receiving device 20 and a yarn guiding edge 35 of a bottom yarn 19b. The yarn guiding edge 35 is used to form the yarn guiding finger 34, and comprises a first edge part 36 used for guiding the bottom yarn 19b and a second edge part 37 used for guiding the veil 19a. The first edge part 36 is extended from a V-shaped fingertip 39 to a finger root 40, and the first edge part 36 on the finger root 40 is used to form a preset angle alpha in a wrapped manner, and is transited to the other edge part 38. The second edge part 37 is extended from the outer side of the yarn guiding finger 34 opposite to the first edge part 36, and is transited from the fingertip area 39 to the first edge part 36. The yarn guiding plate 30 is characterized in that the first edge part 36 is provided with a recess 41, which is disposed between the finger root 40 and the fingertip 39, and is used for the non-contact moving of the yarn 19 along the yarn motion rout during the operation period of the work position 2.

The invention provides a polyester long-fiber FDY (fully drawn yarn) oil solution. On the basis of the total weight of the polyester long-fiber FDY oil solution, the polyester long-fiber FDY oil solution comprises 12-14% of POE (polyoxyethylene) (5) octadeyl alcohol ether, 5-8% of POE (5) lauryl ether phosphate potassium salt, 4-7% of POE (30) castor oil, 4-8% of PEG (polyethylene glycol) (400) dilaurate, 4-6% of sodium dodecylsulfate, 13-15% of random polyether, 8-10% of POE (7) benzylphenyl phenolic ether, 8-12% of dioctyl sebacate, 22-25% of trimethylolpropane didecanoate, 4-5% of capryl alcohol and 3-4% of butyl cellosolve. The oil solution provided by the invention has excellent heat resistance, smoothness and antistatic property, can not bring about impediment in the drafting spinning and false twisting process, reduces the possibility of yarn breaking and fluffing, fills up the blank of high quality oil solutions in China, and has wide application prospects.

The invention provides a high-temperature oil agent for polyester industrial yarns, and a preparation method thereof, and in particular relates to the technical field of textiles of polyester industrial yarns. The high-temperature oil agent in the invention is composed of the following components in mass percentage: 45-65% of a smoothing agent, 8-18% of an emulsifying agent, 2-8% of a collecting agent, 5-10% of an anti-static agent, 2-5% of a dispersing agent, 1-3% of a humectant, 8-18% of a diluent solvent, 0.1-1.5% of an antioxygen, 0.1-0.5% of a pH adjusting stabilizer, and 0.5-1% of water,wherein the smoothing agent is a synthetic ester smoothing agent. Various components are compounded and modulated into the high-temperature oil agent according to the ratio. The high-temperature oilagent in the invention has good lubricating property, and can effectively inhibit electrostatic generation; and simultaneously, the igh-temperature oil agent in the invention is good in high-temperature resistance, low in tarring degree on a hot roller, little in blue smoke generation, uniform to oil, low in oiling rate, and good in tow spinnability.