273results about How to "Reduce broken ends" patented technology

The invention discloses a method that uses esterase obtained by 100 percent deinking and desizing of wasted newspaper controls sticky which mainly aims at producing the low fixed amount newspaper by using the 100 percent deinking and desizing of the wasted newspaper, adopts Optimyze 525 esterase control sticky and produces the newspaper with 45g/mm<2> fixed amount. The invention has the advantages of reducing the dosage of the sticky in the paper pulp, leading the sticky removing rate to be about 20 percent to 40 percent, reinforcing the operating performance of a paper machine, and helping to improve the speed and the output of the paper machine; by adopting deinking and desizing of 100 percent wasted newspaper to make 45g/m<2> lowing amount offset newsprint, the obtained products have good quality, chemical pulp and groundwood pulp which are high in pollution and high consumption are eliminated, the manufactory cost of the pulp material and the processing cost of the water are reduced, and the discharged waste water and the pollutants are reduced.

The present invention relates to Dacron producing process, and is especially preparation process of high-strength and low-elongation Dacron filament for sewing thread. The preparation process with routine pre-oriented POY filament includes successive first high-power drafting in the first and the second heating discs, high temperature tensed heat setting in the first heating box and the third heating box, the second drafting and the high temperature relax heat setting in the second heating box. In the process, POY filament has good drafting performance, no teasing and breaking, and the final product has high strength, low elongation and less heat shrinkage.

The invention relates to a sesaron combing and sorting method and a device; combed ramie stripes with different specifications and lengths are obtained through a plurality of layers of combing; the split degree of the ramie stripes is decided by comb needle models used in all the layers of combing; and the lengths of the ramie stripes are changed by adjusting a pulling vehicle. In a combing and sorting mechanism of the device, circular comb needle strips are lined in a circumference of 0 to 270 degrees respectively through a rack method and a rack and needle row combined method, and top combs are in a single row or a plurality of rows. A pulling separation mechanism comprises the pulling vehicle, the pulling vehicle is arranged on a regulation frame, the regulation frame is provided with a rod and a circular arc-shaped chute, a bolt is inserted into the circular arc-shaped chute, the bolt is fastened on a frame, the bolt is loosened, and the regulation frame can slide along the circular arc-shaped chute by triggering the rod. At least two pairs of curl rollers are arranged in a strip discharge mechanism. The ramie stripe fibers processed by the method and the device are even and uniform, have short fiber rate, uniform fiber length and low ultra-long length fiber content, so that the fibers are more parallel and straighter, the operation is convenient, the efficiency is high, and the labor intensity is low.

The invention relates to a ramee/terylene double woven fabric used for wall cloth and window blind fabrics, which comprises a surface layer and an inner layer, wherein, the surface layer is weaved by ramee yarns and the inner layer is weaved by terylene yarns, or the surface layer is weaved by terylene yarns and the inner layer is weaved by ramee yarns, and the surface layer and the inner layer are bond into a whole by binding joints which are not exposed on the right side and the reverse side of the fabric. The preparation method of the ramee/terylene double woven fabric adopts the ramee yarns and the terylene yarns as raw materials, and comprises a preparation procedure and a weaving procedure, and the fabric is prepared by adopting a shuttleless loom or loom with shuttles according to selected structure. When weaving by adopting the shuttleless loom, the preparation procedures of the warp comprise the steps of twist setting, winding, warping, warp sizing and warp gaiting, and the preparation procedures of the weft comprise the steps of twist setting and winding; and when weaving by adopting the loom with shuttles, the preparation procedures of the warp comprise the steps of twist setting, winding, warping, warp sizing and warp gaiting, and the preparation procedures of the weft comprise the steps of twist setting, winding and weft winding.

The invention relates to a guide wheel system positioning spinning method and belongs to the technical field of textile processing. Guide wheels are additionally mounted on a front roll of a ring throstle and in front of a front roller. A groove of the guide wheel is V-shaped. A V-shaped bottom of the guide wheel groove is located in one side of a common tangent face of the front roll and the front roller. A shaft of the guide wheel is perpendicular to the common tangent face, yarn is output from a jaw formed by the front roll and the front roller, guided by the guide wheel, and wound on a ring bobbin through a yarn guide hook, a steel collar and a steel wire ring. A non-twist section of the yarn output from a front jaw is eliminated, and spinning efficiency is improved. Yarn texture is more compact, yarn hair is strong, and evenness of yarn is more excellent. The method is suitable for all technical ring throstle spinning systems, simple to modify and convenient to operate and use.

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 full-drawn yarn of super fine polyester manufactured by using polyester continuously. The full-drawn yarn of super fine polyester with a specification of 75D/192F is manufactured by a one-step process route of circular blowing, cooling and spinning, and the yarn has good performance. The manufacturing process of the full-drawn yarn of super fine polyester comprises the following steps of: esterifying phthalic acid and glycol by using the refined raw material, preparing the melted polyester by the prepolycondensation and the final polycondensation, and directly spinning the melted polyester. The manufacturing process route comprises melted polyester, conveying the melted polyester, a spinning box, a metering pump, a member, circular blowing cooling, bundling and oiling, a paved path, a first hot roller, an interlacer, a second hot roller and winding. The invention has advantages of reasonable manufacturing processing, good fibre spinnabilitty, smooth weaving, light, flexible quality of the fabric and good style of the fabric, thereby meeting weaving request of fabric and lining of high-grade clothes and improving the grade and the additional value of products.

The invention provides a novel double-fiber close spinning device, consisting of two main parts of a double top roller subassembly and a hollow roller subassembly, wherein in the double top roller subassembly, a top roller(2) and a top roller(4) are arranged on a top roller frame(5), on which an airflow orientation block(11) is arranged by a positioning board(10), a spring(3) is arranged on the top roller frame(5), a permanent magnet(12) is arranged on the airflow orientation block(11); in the hollow roller subassembly, a wide vacuum nozzle(7), an air suction base(9) and a baffle board(6) are jointly assembled in hollow roller rings(8), which are arranged on a main shaft(14) in pairs; the double top roller subassembly is arranged on a cradle(1) and exerts pressure on the hollow roller subassembly. The yarn spun by the device has few hairy feathers and little fly waste and is low in fiber strength.

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 water-borne copolymerized (amide-ester) as well as a preparation method and application thereof. Caprolactam, meta-benzene sulfonate, binary carboxylic acid or ester thereof and dihydric alcohol are adopted as materials, heated up firstly to carry out esterification reaction, then carry out ring-opening caprolactam reaction by preserving heat and pressure, and finally carry out polycondensation to prepare the water-borne copolymerized (amide-ester). The resin is not only good in water solubility, but also excellent in adhesion force; while being used for spinning and sizing, the water-borne copolymerized (amide-ester) has extremely strong adhesive force for polyamide fiber (chinlon), and can attach feathers very well, so that a head breaking phenomenon due to a plurality of regenerated feathers as the sizing agent is attached with the feathers is avoided; finally, the production efficiency and quality of fabrics can be improved.

The invention discloses a photochromic fiber making method which is realized by the following steps: (1) under vacuum conditions, drying light nylon slices with a low melting point, cooling to the room temperature, and excluding vacuum to discharge; (2) taking a certain quality of the dried nylon slices obtained by the step (1), adding a photochromic agent, a dispersing agent, a coupling agent, a heat stabilizer and an antioxidant, melting at 165 to 180 DEG C to prepare masterbatch; (3) taking the following raw materials by mass to mix: 70-90% of the nylon slices obtained by the step (1) and 10-20% of the masterbatch obtained by the step (2), and preparing photochromic POY (pre-oriented yarn) by melt spinning; and (4) drawing the photochromic POY to obtain the photochromic FDY (fully drawn yarn). The photochromic fiber is good in color changing effect, good in comprehensive application performance and low in production cost.

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 discloses a polyester DTY (draw texturing yarn) oil agent and a preparation method of the polyester DTY oil agent. The polyester DTY oil agent comprises the following compounded raw materials in percentage by weight: 75-95 percent of a smoothing agent, 3-15 percent of an emulsifying agent and 2-15 percent of an additive, wherein the sum of all components is 100 percent. The preparation method of the polyester DTY oil agent comprises the following process steps: according to the weight percentage of all raw material components of the polyester DTY oil agent, extracting the accurately metered smoothing agent into a reaction kettle, performing reaction at the temperature of 30-70 DEG C, and uniformly stirring the smoothing agent; then extracting the emulsifying agent and the additive into the reaction kettle, stirring the emulsifying agent and the additive for 3-8h, and performing cooling, filtering, discharging and packaging to obtain the polyester DTY oil agent.

The invention relates to a preparation method of high-flowability positive ion modified copolyester. Binary acid I, dihydric alcohol I and high-flowability branched structure modifiers are uniformly mixed and then subjected to esterification reaction, and isophthalic acid-5-sodium sulfonate and dihydric alcohol II esterification products are led in after esterification reaction and subjected to pre-condensation reaction and final polycondensation reaction to prepare the high-flowability positive ion modified copolyester. The high-flowability branched structure modifiers are more than one of pyromellitic anhydride, cyclopentane tetracarboxylic anhydride, benzophenone tetracarboxylic dianhydride, trimellitic anhydride, mellophanic dianhydride, pyromellitic acid, cyclopentane tetracid, benzophenone tetracid, trimellitic acid and mellophanic acid, and the dihydric alcohol II is more than one of butanediol, pentanediol, hexanediol, heptanediol, octylene glycol, nonanediol and decanediol. Two modified components are introduced, so that flow-activation energy is remarkably reduced, acting force of the copolyester and tube walls in the flowing process is reduced, and melt viscosity loss iseffectively controlled.

The invention relates to elastic nonwoven, and belongs to the technical field of nonwoven. The elastic nonwoven is prepared from, by weight, 50-80% of ethyl propylene coelastomer, 17-49% of polypropylene chips and 1-3% of flexibility modifier. The preparing method comprises the steps of mixing the polypropylene chips, the flexibility modifier and ethyl propylene coelastomer in proportion, and stirring and mixing the mixture to be uniform; feeding the mixture into a screw extruder and conducting melting plastification mixing through heating, then conveying the material into a spinning die to be subjected to spinning, and adopting narrow-gap positive pressure drafting and sideblowing cooling to form strands; after the strands cool down, making the strands sucked into a drafting machine under the negative pressure of the inlet of the drafting machine, and conducting cross lapping with the subsidiary of a suction ventilator below a web curtain to form a fluffy fiber layer; using a sealing roller to conduct prepressing and sizing on the fluffy fiber layer, afterwards using a hot mill to conduct hot milling adhesion reinforcing to form the elastic nonwoven. According to the elastic nonwoven and preparing method thereof, the problem that the nonwoven is low in ductility is solved; meanwhile, flexibility and elasticity of the nonwoven are improved.