36results about How to "Drafting smoothly" patented technology

The invention discloses a polyester staple fiber two-component composite oil agent and a method for preparing the same. The oil agent is formed by combining a smoothing oil agent No. 4 and an antistatic oil agent No. 2. The components by weight percentage of the smoothing oil agent No. 4 are: 10-20 percent of smoothing agent, 20-25 percent of emulsifier, 1-3 percent of penetrating agent and the balance being water. The components by weight percentage of the antistatic oil agent No. 2 are 24-27 percent of natural fatty alcohol, 6.0-6.5 percent of phosphorus pentoxide, 8-10 percent of potassium hydroxide and the balance being water. The preparation method comprises the following steps of preparing the smoothing oil agent No. 4 in a reaction kettle and preparing the antistatic oil agent No. 2 in an esterification reactor and a neutralization reactor. The oil agent has the advantages of low production cost, good stability, high oil film strength, good gliding property and excellently antistatic property and bundle collection property.

A preparation method of a composite monofilament for netting gear manufacture. The invention employs a mixer, a double-screw extruder, a single-screw extruder, a secondary drafting electric heating draw machine, a winding machine using a torque motor, a filament splitting machine, a spinning grade drying HDPE resin, nanometer drying Al2O3 and a turpentine assistant for spinning. The preparation method is characterized by comprising the steps of: mixing the spinning grade drying HDPE resin, the nanometer drying Al2O3 and the turpentine assistant for spinning; subjecting the mixture to two times of extrusion granulation by the twin-screw extruder to obtain blend pellets; subjecting the blend pellets to melt extrusion by the single-screw extruder; subjecting the primary composite monofilament obtained from melt extrusion to cooling and a preliminary drafting; subjecting the composite monofilament from preliminary drafting to two times of hot drafting, then high-pressure airflow oil removal and fast cooling; winding the composite monofilament by the winding machine using torque motor; and splitting the composite monofilament by the filament splitting machine into a matrix composite monofilament for low carbon netting gear manufacture.

The invention provides a preparation method for a polyacrylonitrile-based carbon fiber. The third monomer of a protofilament spinning raw material, i.e., polyacrylonitrile resin, is itaconic acid; a spinning solution is prepared from the resin by using DMSO or DMAc, and spinning and solidification are carried out so as to prepare a nascent fiber. The nascent fiber successively undergoes the following procedures: drip washing with deionized water; dipping in an acidic aqueous solution for 2 to 10 min; dipping in a sodium hydroxide or potassium hydroxide aqueous solution for 1 to 5 min; water bath drafting in pure water; dipping in the acidic aqueous solution for 2 to 8 min; and hot bath rinsing with deionized water until rinsing liquid is neutral. A carbon fiber protofilament is prepared by subjecting the nascent fiber to post-processing procedures like oiling and dry densification. The protofilament undergoes pre-oxidation in an aerobic atmosphere under the condition of drafting and then undergoes carbonization in an anoxic atmosphere under the condition of drafting so as to obtain a finished product of the polyacrylonitrile-based carbon fiber.

The invention relates to a semi-worsted porous segment color slub yarn. The semi-worsted porous segment color slub yarn is prepared from base yarn and decorative yarn, wherein the base yarn is prepared from prolivon fibers, spun silk fibers and wool fibers, and the decorative yarn is prepared from aloe viscose fibers and antibacterial hollow polyester fibers. The slub yarn prepared through the method is colorful, rich in color, changeable in pattern, unique in style, rich in layer change and special in shape, and can generate a flash effect after the fibers in different colors are combined into threads; due to the fact that the yarn is rich in color and diversified in shape change, a fabric manufactured through processing is antibacterial, capable of diminishing inflammation, protecting skin and beautifying the face, good in moisture absorption and good in dyeing property and elasticity, does not generate adverse reactions when making contact with the human body, and is not easy to damage by worms or rot, unique in appearance, good in drapability, good in comfort degree, good in abrasion resistance, natural in color and wide in application range; the processed fabric is strange in style and has the health-care functions of resisting bacteria, protecting the skin, strengthening the body, beautifying the face, moisturizing the skin, being good in comfort degree and the like.

The invention provides a manufacturing method for a polyacrylonitrile-based carbon fiber protofilament. The third monomer of a protofilament spinning raw material polyacrylonitrile resin is itaconic acid. The preparation method comprises the following successive steps: preparing a spinning solution from the resin by using DMSO or DMAc and carrying out spinning and solidification so as to prepare a nascent fiber; placing the nascent fiber in an aqueous solution of the spinning solvent for water bath drafting and carrying out drip washing with deionized water; dipping the nascent fiber in an acidic aqueous solution for 2 to 10 min; then dipping the nascent fiber in a sodium hydroxide or potassium hydroxide aqueous solution for 1 to 5 min; placing the nascent fiber in pure water for water bath drafting; rinsing the nascent fiber with deionized water until rinsing liquid is neutral and sodium or potassium ions cannot be measured, and then continuing rinsing for 5 to 15 min; and carrying out post-processing procedures like oiling and dry densification so as to obtain a product of the polyacrylonitrile-based carbon fiber protofilament. According to the invention, purification of the protofilament is realized through rinsing, and breaking strength of fibers is not affected, so the defects of the prior art are overcome.

The invention provides a preparation method for a polyacrylonitrile-based carbon fiber protofilament. The third monomer of a spinning raw material, i.e., polyacrylonitrile resin, is itaconic acid; a spinning solution is prepared from the resin by using DMSO or DMAc, and spinning and solidification are carried out so as to prepare a nascent fiber. The nascent fiber successively undergoes the following procedures: drip washing with deionized water; dipping in an acidic aqueous solution for 2 to 10 min; dipping in a sodium hydroxide or potassium hydroxide aqueous solution for 1 to 5 min; water bath drafting in pure water; dipping in the acidic aqueous solution for 2 to 8 min; and rinsing with deionized water until rinsing liquid is neutral. A carbon fiber protofilament is prepared by subjecting the nascent fiber to post-processing procedures like oiling and dry densification. According to the invention, purification of the protofilament is realized through rinsing, and breaking strength of fibers is not affected, so the defects of the prior art are compensated.

The invention provides a manufacturing method for a polyacrylonitrile-based carbon fiber. The third monomer of a protofilament spinning raw material polyacrylonitrile resin is itaconic acid, a spinning solution is prepared from the resin by using an aqueous solution of NaSCN, and spinning and solidification are carried out so as to prepare a nascent fiber. The nascent fiber successively undergoes the following procedures: water bath drafting in the aqueous solution of NaSCN; drip washing with deionized water; dipping in an acidic aqueous solution; dipping in a sodium hydroxide or potassium hydroxide aqueous solution; water bath drafting in pure water; and rinsing with deionized water until rinsing liquid is neutral and sodium or potassium ions cannot be measured, and continued rinsing for 5 to 15 min. A carbon fiber protofilament is prepared by subjecting the nascent fiber to post-processing procedures like oiling and dry densification. The protofilament undergoes pre-oxidation in an aerobic atmosphere under the condition of drafting and then undergoes carbonization in an anoxic atmosphere under the condition of drafting so as to obtain a finished product of the polyacrylonitrile-based carbon fiber.

The invention relates to a drawing and drafting mechanism for spinning, comprising a roller drafting device A; wherein the roller drafting device A comprises a drafting area I and a drafting area II, the two drafting areas are composed by three group rollers and rubber rollers. The drawing and drafting mechanism for spinning is characterized in that the drafting mechanism also comprises a press bar B, and doubles the drafting multiple of the back area at least and improves the drafting efficiency, greatly increases the centre distance adjusting range of the rollers in the front area and the back area, ensures successful processing of fur, hemp and silk fiber, and greatly improves the versatility of the equipment; the drawing and drafting mechanism especially considers the usage in the experiment, so the delivery speed can be adjusted between 30m/min to 300m/min, thereby meeting the requirement of parameter adjusting in various processing and experiment, and avoiding the waste of raw material.

The invention provides a preparation method for a polyacrylonitrile-based carbon fiber protofilament. The third monomer of a spinning raw material polyacrylonitrile resin is itaconic acid. The preparation method comprises the following successive steps: preparing a spinning solution from the resin by using an aqueous solution of NaSCN and carrying out spinning and solidification so as to prepare a nascent fiber; placing the nascent fiber in the aqueous solution of NaSCN for water bath drafting and carrying out drip washing with deionized water; dipping the nascent fiber in an acidic aqueous solution; dipping the nascent fiber in a sodium hydroxide or potassium hydroxide aqueous solution; placing the nascent fiber in pure water for water bath drafting; subjecting the nascent fiber to hot bath rinsing until rinsing liquid is neutral and sodium or potassium ions cannot be measured, and then continuing rinsing for 5 to 15 min; and carrying out post-processing procedures like oiling and dry densification on the nascent fiber so as to obtain a product of the polyacrylonitrile-based carbon fiber protofilament. According to the invention, purification of the protofilament is realized through rinsing, and breaking strength of fibers is not affected, so the defects of the prior art are overcome.

The invention provides a preparation method for a polyacrylonitrile-based carbon fiber. The third monomer of a protofilament spinning raw material polyacrylonitrile resin is itaconic acid, a spinning solution is prepared from the resin by using an aqueous solution of NaSCN as a solvent, and spinning and solidification are carried out so as to prepare a nascent fiber. The nascent fiber successively undergoes the following procedures: water bath drafting in the aqueous solution of NaSCN; drip washing with deionized water; dipping in a buffer solution containing acid A and salt B, wherein A is sulfuric acid, hydrochloric acid or nitric acid, and B is a sodium salt or a sylvite of A; water bath drafting in pure water; dipping in an acidic aqueous solution; and hot bath rinsing with deionized water until rinsing liquid is neutral. A carbon fiber protofilament is prepared by subjecting the nascent fiber to post-processing procedures like oiling and dry densification. The protofilament undergoes pre-oxidation in an aerobic atmosphere under the condition of drafting and then undergoes carbonization in an anoxic atmosphere under the condition of drafting so as to obtain a finished product of the polyacrylonitrile-based carbon fiber.

The invention discloses a preparation method of fiber for a euphausia superba net rope. According to the preparation method, HDPE (high-density polyethylene) rubber, auxiliaries, metallocene LLDPE (linear low density polyethylene) resin, a stirrer, a single-screw extruder, a two-time drawing electrical heating drawing machine, a fiber winding device and a fiber dividing device. The preparation method is characterized in that the HDPE rubber, the auxiliaries and the metallocene LLDPE resin are mixed and stirred uniformly by the stirrer, a blend is subjected to melt extrusion by a charging barrel of the single-screw extruder, as-spun fiber obtained through melt extrusion is subjected to cooling and preliminary drawing, the fiber after the preliminary drawing is subjected to hot drawing twice, the total drawing multiple is controlled in 12.031 times, after that, airflow at the high pressure of 0.56 MPa-0.63MPa is adopted to remove oil, then the fiber is rapidly cooled, fiber bundles are divided into fiber by the fiber dividing device, and the fiber for the euphausia superba net rope is prepared.

The invention relates to wool-polyester graphene elastic woolen cloth which is made of warps and wefts, wherein the warps are made of 40wt% of 66S wool and 60wt% of a graphene wool type polyester fiber; the wefts are made of 40wt% of 66S wool, 40wt% of the graphene wool type polyester fiber and 20wt% of a PTT (Polytrimethylene Terephthalate) fiber; the yarn count of the warps and the wefts is 72Nm/<2>; and the wool-polyester graphene elastic woolen cloth is made of the warps and the wefts in a blended manner. The invention further discloses a production method of the wool-polyester graphene elastic woolen cloth. The production method comprises steps of dyeing, repeated washing, secondary combing, former combing, yarn fining, warp finishing, drafting and denting, weaving, woolen cloth quantification, blank cloth inspection, crude finishing, aftertreatment, and finished product making. The wool-polyester graphene elastic woolen cloth has the advantages that the product is made of wool, the graphene modified PET (Polyethylene Glycol Terephthalate) fiber and the PTT fiber as main raw materials through procedures of bar dyeing, spinning, weaving and aftertreatment, and through the optimization of repeated combing and spinning and after finishing processes, the uniformity and the product quality of the yarns can be improved, and the product has properties of anti-electrostatic properties, ultraviolet resistance, and the like.

The invention relates to a spinning yarn and in particular to a preparation method and application for a broken-silk spinning elastic slubby yarn with healthcare functions of beautifying and caring skin and resisting an ultraviolet ray. The slubby yarn comprises spandex filaments, anti-pilling polyester fibers, emerald fibers, anti-bacterial deodorized acrylic fibers and wool fibers. Clothes processed by the slubby yarns have the characteristics of skin care, ultraviolet resistance, moisture absorption and ventilation, stiffness and smoothness, good skin-friendliness, antibiosis and deodorization, gentle gloss, light texture, high resilience, good dyeing property, good fullness, soft hand feeling, nobleness and elegance, abundant color, variable pattern, unique style, good comfort, and good abrasive resistance. Untoward effect cannot be produced by contacting with the human body, and a product cannot be easily damaged by worms and decayed, and has the healthcare function of caring skin and exercising body. The use of the product is extensive, and the processed product is dressed lightly and comfortably, and is suitable for producing top-grade fabric, decoration cloth and beddings and so on.

The invention relates to yarn with a healthcare function, in particular to a preparing method and application of blended and worsted broken color frame yarn with the functions of being antimicrobial, deodorizing, moisture-absorbing, sweat-perspiring and health-care. The blended and worsted broken color frame yarn is composed of polyester filament yarn, color moisture-absorbing and sweat-perspiring Cooldry fiber, color aloe fiber, color antimicrobial and deodorizing acrylic fiber and wool fiber. The blended and worsted broken color frame yarn of the polyester filament yarn, the color moisture-absorbing and sweat-perspiring Cooldry fiber, the color aloe fiber, the color antimicrobial and the deodorizing acrylic fiber and wool fiber has the functions of being antimicrobial, deodorizing, moisture-absorbing, sweat-perspiring and the like, processed fabric is stiff and smooth, good in shape maintenance, comfortable to wear, rich in color, bright and natural, good in skin-friendly performance, antimicrobial, deodorizing, moisture-absorbing, sweat-perspiring, breathable, easy to spread and quick to dry, can quickly drain moisture of the human body and is quick to dry, excellent in antistatic effect and friendly to skin and nourishes the skin, when the fabric is in contact with the human skin, microelements can be gradually dissolved out, the effect of preventing the skin from aging is achieved, and the blended and worsted broken color frame yarn is suitable for producing high-end fabric, beddings and the like.

The invention provides a preparation method of a rectangular separation net for deep and far sea culture, which comprises the following steps: preparing a blended antifouling composite material, preparing a light blue monofilament bundle, preparing a rectangular separation net, and mixing polypropylene granules, a polyhexamethylene guanidine hydrochloride grafted modified polypropylene antifouling material, nano copper powder, pyrithione copper powder, tetra [beta-(3, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4- 2, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, tri (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite, phthalocyanine blue pigment, titanium dioxide and turpentine are mixed and uniformly stirred, extrusion granulation is performed 2-3 times through a double-screw extruder to obtain a blended antifouling composite material, light blue monofilament tows are obtained after wire drawing and rolling, and the light blue monofilament tows are used as raw materials. And obtaining the rectangular separation net for deep and far sea culture by using a special rectangular separation net preparation method.