EP3967800A1 - Verfahren zur herstellung von versponnenen ledergarn mit lederfaser und nach dem herstellungsverfahren hergestelltes versponnenes ledergarn - Google Patents

Verfahren zur herstellung von versponnenen ledergarn mit lederfaser und nach dem herstellungsverfahren hergestelltes versponnenes ledergarn Download PDF

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Publication number
EP3967800A1
EP3967800A1 EP19927639.5A EP19927639A EP3967800A1 EP 3967800 A1 EP3967800 A1 EP 3967800A1 EP 19927639 A EP19927639 A EP 19927639A EP 3967800 A1 EP3967800 A1 EP 3967800A1
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EP
European Patent Office
Prior art keywords
fiber
leather
weight
spun
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19927639.5A
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English (en)
French (fr)
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EP3967800A4 (de
Inventor
Ji Eon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atko Planning Inc
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Atko Planning Inc
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Filing date
Publication date
Application filed by Atko Planning Inc filed Critical Atko Planning Inc
Publication of EP3967800A1 publication Critical patent/EP3967800A1/de
Publication of EP3967800A4 publication Critical patent/EP3967800A4/de
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/10—Yarns or threads formed from collagenous materials, e.g. catgut
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/06—Threads formed from strip material other than paper
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/20—Feed rollers; Takers-in
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G99/00—Subject matter not provided for in other groups of this subclass
    • D01G99/005—Conditioning of textile fibre during treatment before spinning
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive

Definitions

  • the present invention relates to a method for preparing spun leather yarn using leather fiber, and spun leather yarn prepared according to the preparation method.
  • Natural leather is a tough shell wrapping an animal body, and widely used in various fields, such as bags, shoes, furniture, and others, due to its excellent physical properties. Natural leather is separated from the animal body and is manufactured into a product through chemical and physical processes. Among various processes, a process of cutting the natural leather according to a desired design of the product is essential. However, the cutting process produces a great deal of leather waste, and most of the leather waste is incinerated and buried. So, it comes to the fore as a serious environment issue. Therefore, it is necessary to study and develop various recycling methods of leather waste.
  • the inventors of the present invention studied spun leather yarn utilizing leather waste, and found out it was possible to manufacture high-quality spun leather yarn, which can be manufactured as fabrics, knitted goods, and lace goods, which have the nature of leather, can replace existing leather materials, which have been used in bags, athletic shoes, and the like, can be produced without being affected by seasons, and has warmth retention and general flame retardancy, which are the properties of natural leather. Accordingly, the inventors completed this invention.
  • Japanese Patent Laid-open Publication No. 11-021600 discloses a manufacturing method of bulky regenerated leather.
  • the present invention has been made in an effort to solve the above-mentioned problems occurring in the prior arts, and it is an object of the present invention to provide a method for preparing spun leather yarn using leather fiber.
  • the present invention provides a method for preparing spun leather yarn using leather fiber including the steps of: mixing leather fiber, common fiber, and polymer fiber to prepare mixed fiber; putting water and woolen oil into the mixed fiber, and mixing them; putting an anti-static agent into the mixed fiber into which water and woolen oil have been put, and mixing them; and spinning the mixed fiber into which the anti-static agent is put to prepare spun leather yarn.
  • the leather fiber is obtained from leather waste, and the leather waste may be flaky scraps.
  • the common fiber is one selected from groups of cellulose-based natural fiber, protein-based natural fiber, mineral-based fiber, cellulose-based artificial fiber, protein-based artificial fiber, rubber-based fiber, inorganic fiber, and acetate-based fiber.
  • the polymer fiber is one selected from groups of polyamide-based fiber, polyester-based fiber, polyurethane-based fiber, polyurea-based fiber, polyacryl-based fiber, polyvinyl alcohol-based fiber, polyvinyl chloride-based fiber, polyvinylidene chloride-based fiber, polypropylene-based fiber, polyethylene-based fiber, polystyrene-based fiber, and polyfluoroethylene-based fiber.
  • the leather fiber, the common fiber, and the polymer fiber are mixed at the rate of 40 parts by weight to 80 parts by weight of common fiber, and 20 parts by weight to 60 parts by weight of polymer fiber on the basis of 100 parts by weight of leather fiber.
  • the water and the woolen oil are mixed at the rate of 5 parts by weight to 10 parts by weight of water and 2 parts by weight to 10 parts by weight of woolen oil on the basis of 100 parts by weight of the mixed fiber.
  • 1 part by weight to 5 parts by weight of the anti-static agent is put on the basis of 100 parts by weight of the mixed fiber.
  • Each of the step of putting water and woolen oil into the mixed fiber and mixing them, and the step of putting an anti-static agent into the mixed fiber into which water and woolen oil have been put and mixing them further includes a step of aging the mixed fiber for 8 hours to 15 hours after mixing.
  • the step of preparing spun leather yarn includes steps of: carding the mixed fiber, into which the anti-static agent is put, using a carding machine to prepare sliver; and applying twist and draft to the sliver to prepare spun leather yarn.
  • the carding machine includes a worker speed controller to control the speed of the worker.
  • the sliver manufactured by the carding machine is 15 mm or more in length.
  • the step of manufacturing the spun leather yarn further includes: a combing step of removing foreign matters from the sliver; a drawing step of producing a single strand of the sliver after the combing step; and drawing the sliver again after the drawing step and roving the sliver.
  • the drawing step is carried out using a roller having a plurality of wire fillets, and an interval between the plurality of wire fillets is 0.01 mm to 1 mm.
  • the drawing step is carried out by spraying water in order to prevent static electricity.
  • the method for preparing spun leather yarn using leather fiber further includes a covering step after the step of manufacturing spun leather yarn.
  • the spun leather yarn prepared using leather fiber manufactured according to an embodiment of the present invention enables the manufacture of fabrics, knitted goods, and lace goods, which have the nature of leather, thereby being capable of being effectively used for various fashion applications.
  • the spun leather yarn prepared using leather fiber manufactured according to an embodiment of the present invention can replace existing leather materials, which have been used in bags, athletic shoes, and the like, and thus is not affected by material supply in accordance with seasonal changes, and accordingly, the economic effect thereof is excellent.
  • the spun leather yarn has warmth retention and general flame retardancy, which are the properties of natural leather, and thus is of very high quality.
  • Spun leather yarn was manufactured using a method of manufacturing spun leather yarn using leather fiber according to an embodiment of the present invention.
  • the aged mixed fiber was spun to prepare spun leather yarn.
  • the spun leather yarn was manufactured under a condition that a carding machine is adjusted to be reduced 40% in worker speed and to have temperature of 30°C and humidity of 65% so as to manufacture the spun leather yarn.
  • the spun leather yarn manufactured according to the Example of the present invention showed excellent ductility and elastic recovery, and especially, showed excellent antibiotic action by showing excellent antibacterial rate as a result of an antibacterial test.
  • a method for preparing spun leather yarn using leather fiber including the steps of: mixing leather fiber, common fiber, and polymer fiber to prepare mixed fiber; putting water and woolen oil into the mixed fiber, and mixing them; putting an anti-static agent into the mixed fiber into which water and woolen oil have been put, and mixing them; and spinning the mixed fiber into which the anti-static agent is put to prepare spun leather yarn.
  • FIG. 1 is a schematic diagram illustrating a method for preparing spun leather yarn using leather fiber according to an embodiment of the present invention.
  • the method for preparing spun leather yarn using leather fiber includes a step (S100) of mixing leather fiber, common fiber, and polymer fiber to prepare mixed fiber.
  • the leather fiber is obtained from leather waste, and the leather waste may be flaky scraps.
  • the flaky form may be a flat type having a long shaft and a short shaft. If scraps of the leather waste are used, because the scraps have a predetermined length, spun leather yarn of a thread type can be manufactured easily.
  • the long shaft and the short shaft of the flaky form may be respectively 250mm to 450mm, and may have the same length.
  • the leather fiber includes 8 wt% to 10 wt% of water on the basis of the gross weight of the leather fiber. As described above, because the leather fiber contains a small quantity of water, the next processes can be carried out smoothly to manufacture spun leather yarn.
  • leather fiber can be obtained from the leather waste through the following steps of: destroying bonding between leather fiber of leather waste using a leather crusher; and separating the leather fiber from the leather waste, of which leather fiber bonding was destroyed, using a leather scutcher.
  • the leather crusher is to destroy the bonding between the leather fiber of the leather waste by crushing the leather waste, and the crushing may be carried out by a well-known crushing method, but must be carried out by a crushing method which is strong enough to destroy the bonding between leather fiber.
  • the leather scutcher is used to separate the leather fiber from the leather waste of which leather fiber bonding was destroyed. For instance, the leather scutcher may separate the leather fiber from the leather waste using the heavy weight of the leather fiber.
  • the common fiber may be one selected from groups of cellulose-based natural fiber, protein-based natural fiber, mineral-based fiber, cellulose-based artificial fiber, protein-based artificial fiber, rubber-based fiber, inorganic fiber, and acetate-based fiber.
  • the polymer fiber may be one selected from groups of polyamide-based fiber, polyester-based fiber, polyurethane-based fiber, polyurea-based fiber, polyacryl-based fiber, polyvinyl alcohol-based fiber, polyvinyl chloride-based fiber, polyvinylidene chloride-based fiber, polypropylene-based fiber, polyethylene-based fiber, polystyrene-based fiber, and polyfluoroethylene-based fiber.
  • the common fiber or the polymer fiber may be at least one selected from groups of nylon, kapok, flax, ramie, hemp, jute, manila, abaca, sisal hemp, coir, sheep wool, goat wool, cashmere, camel wool, alpaca, rabbit fur, vicuna wool, llama wool, cultivated silk, wild silk, asbestos, metal fiber, glass fiber, rock wool, slag wool, carbon fiber, rayon, lanital, soylon fiber, ardil fiber, uicara fiber, casein fiber, acetate, acetylated rayon fiber, chlorinated rubber, hydrochlorinated rubber, amilan, rilsan, purlon L, terylene, tetron, dacron, kodel, vycron, spandex, lycra, vycron, purlon U, urylon, glasslon, orlon, acrilan, creslan, exlan
  • the leather fiber, the common fiber, and the polymer fiber are mixed at the rate of 40 parts by weight to 80 parts by weight of common fiber, and 20 parts by weight to 60 parts by weight of polymer fiber on the basis of 100 parts by weight of leather fiber.
  • the common fiber, and the polymer fiber are mixed at the rate of 50 parts by weight to 70 parts by weight of common fiber, and 30 parts by weight to 50 parts by weight of polymer fiber on the basis of 100 parts by weight of leather fiber.
  • the common fiber, and the polymer fiber are mixed at the rate of 60 parts by weight of common fiber, and 40 parts by weight of polymer fiber on the basis of 100 parts by weight of leather fiber.
  • the mixing rate of the common fiber and the polymer fiber is higher than the rate, because the content of the leather fiber is relatively low, texture of leather may get worse. Furthermore, If the mixing rate of the common fiber and the polymer fiber is lower than the above rate, because the content of the leather fiber is relatively high, the leather fiber, the common fiber, and the polymer fiber are not mixed well, and spinning is not performed well in the spinning step since the content of basic filaments is too small.
  • the method for preparing spun leather yarn using leather fiber includes a step (S200) of putting water and woolen oil into the mixed fiber, and mixing them.
  • the water and the woolen oil are to increase a mixing rate of the leather fiber, the common fiber, and the polymer fiber.
  • the water and the woolen oil are mixed at the rate of 5 parts by weight to 10 parts by weight of water and 2 parts by weight to 10 parts by weight of woolen oil on the basis of 100 parts by weight of the mixed fiber.
  • the water and the woolen oil are mixed at the rate of 7 parts by weight to 9 parts by weight of water and 3 parts by weight to 7 parts by weight of woolen oil on the basis of 100 parts by weight of the mixed fiber.
  • the water and the woolen oil are mixed at the rate of 8 parts by weight of water and 5 parts by weight of woolen oil on the basis of 100 parts by weight of the mixed fiber.
  • the spun leather yarn manufactured in the next step may not show the texture of leather.
  • the method for preparing spun leather yarn using leather fiber includes a step (S300) of putting an anti-static agent into the mixed fiber into which water and woolen oil have been put, and mixing them.
  • the anti-static agent is put in order to increase a mixing rate of the leather fiber, the common fiber and the polymer fiber.
  • 1 part by weight to 5 parts by weight of the anti-static agent is put on the basis of 100 parts by weight of the mixed fiber.
  • 1 part by weight to 3 parts by weight of the anti-static agent is put on the basis of 100 parts by weight of the mixed fiber.
  • 2 parts by weight of the anti-static agent is put on the basis of 100 parts by weight of the mixed fiber. If less than 1 part by weight of water is put, because the content of the anti-static agent is too low, the leather fiber, the common fiber, and the polymer fiber are not mixed well.
  • more than 5 parts by weight of anti-static agent is put, because the content of the anti-static agent is too high, the spun leather yarn manufactured in the next step may not show the texture of leather.
  • the step (S200) of putting water and woolen oil into the mixed fiber and mixing them, and the step (S300) of putting an anti-static agent into the mixed fiber into which water and woolen oil have been put and mixing them may be carried out at the same time. However, if the steps are carried out in order, the mixing rate of the leather fiber, the common fiber, and the polymer fiber may be increased.
  • each of the step (S200) of putting water and woolen oil into the mixed fiber and mixing them, and the step (S300) of putting an anti-static agent into the mixed fiber into which water and woolen oil have been put and mixing them may further include a step of aging the mixed fiber for 8 hours to 15 hours after mixing.
  • the aging step may be carried out for 10 hours to 14 hours. More preferably, the aging step may be carried out for 12 hours. That is, in each step, the mixed fiber is aged for a predetermined period of time after the water, the woolen oil, and the anti-static agent are put and mixed, so that the mixing rate of the leather fiber, the common fiber, and the polymer fiber is increased.
  • the method for preparing spun leather yarn using leather fiber may repeat the steps of: (S100) mixing leather fiber, common fiber, and polymer fiber to prepare mixed fiber; (S200) putting water and woolen oil into the mixed fiber, and mixing them; (S300) putting an anti-static agent into the mixed fiber into which water and woolen oil have been put, and mixing them, several times.
  • the method for preparing spun leather yarn using leather fiber may repeat the steps (S100), (S200), and (S300) four times.
  • the method for preparing spun leather yarn using leather fiber includes: a first mixing step of first mixing 40 wt% to 60 wt% of mixed fiber on the basis of the gross weight of the mixed fiber to be manufactured; a second mixing step of adding and mixing 20% to 30% of the gross weight of the mixed fiber to be manufactured; a third mixing step of adding and mixing 10% to 20% of the gross weight of the mixed fiber to be manufactured; and a fourth mixing step of adding and mixing 5% to 10% of the gross weight of the mixed fiber to be manufactured. That is, fibers to be mixed are added and mixed at a predetermined ratio in several steps, so that the leather fiber can be evenly mixed with the common fiber and the polymer fiber.
  • the repeated number is not limited to four, and may be five, six or more.
  • the method for preparing spun leather yarn using leather fiber includes a step (S400) of spinning the mixed fiber into which the anti-static agent is put to prepare spun leather yarn.
  • a step (S400) of spinning the mixed fiber into which the anti-static agent is put to prepare spun leather yarn will be described in more detail.
  • the step (S400) of preparing spun leather yarn includes steps of: carding the mixed fiber, into which the anti-static agent is put, using a carding machine 101 which brushing the mixed fiber in the direction of grains to prepare sliver; and applying twist and draft to the sliver to prepare spun leather yarn.
  • carding is a mixing step to mix the mixed fiber at uniform mixing rate.
  • the mixed fiber is separated into several strands, impurities or foreign matters contained in the mixed fiber are removed, and the mixed fiber is concentrated into a web having required weight per unit area.
  • the mixed fiber is supplied to a roller covered with wire fillets rotating at rapid speed by a lattice to be opened thin.
  • the mixed fiber which is opened thin is supplied to a drum (doffer) covered with wire fillets rotating at slow speed, so that a web having a predetermined weight can be formed while the mixed fiber passes through the drum.
  • the carding machine 101 includes a worker 110 for performing opening.
  • the carding machine 101 may further include a worker speed controller 210 for controlling speed of the worker 110.
  • the worker speed controller 210 may be mounted inside a cylinder illustrated in the drawing so as to control speed of the worker 110 according to the length of the mixed fiber supplied to the carding machine. Meanwhile, preferably, the speed of the worker 110 is controlled to be reduced by about 30% to 50% in comparison with the normal speed of a conventional worker. That is, because the speed of the worker 110 is lower than the speed of the conventional worker, the mixed fiber which is relatively shorter in length is uniformly transferred along the worker 110 without being scattered outside the worker so as to form the web.
  • the sliver manufactured by the carding machine is 15 mm or more in length, preferably, is 20 mm or more in length, and more preferably, is 31 mm or more in length. If the sliver manufactured by the carding machine is less than 15 mm, the mixed fiber cannot be manufactured in the form of yarn, and so, the spun leather yarn cannot be manufactured.
  • the step (S400) of manufacturing the spun leather yarn further includes: a combing step of removing foreign matters from the sliver; a drawing step of producing a single strand of the sliver after the combing step; and drawing the sliver again after the drawing step and roving the sliver.
  • the combing step is to remove foreign matters contained in the sliver, align fiber, and arrange fine hairs.
  • the combing step is carried out on a wooden plate in the conventional art, but if the combing step is carried on the wooden plate, the sliver or the web transferred from the carding machine may be torn. Therefore, preferably, the combing step is carried out on a rubber plate in order to prevent the sliver or the web from being torn.
  • an input amount of the sliver put into the combing step is about 50% of the input amount of sliver in the conventional method. So, the method of manufacturing the spun leather yarn further according to the present invention can increase an output of spun leather yarn and can manufactured spun leather yarn having uniform thickness (uniformity) since a break of the sliver is prevented.
  • the drawing step is to manufacture a single strand of the sliver, and is carried out using a roller having a plurality of wire fillets.
  • an interval between the plurality of wire fillets is 0.01 mm to 1 mm, preferably, 0.05 mm to 0.5 mm, and more preferably, 0.1 mm.
  • the number of revolutions of the roller having the wire fillets is 120 rpm to 130 rpm.
  • the drawing step is carried out by spraying water in order to prevent static electricity.
  • the roving step is to rove the sliver by drawing again and rubbing the sliver after the drawing step, and may includes a step of separating the sliver in the same thickness.
  • the step of applying twist and draft to the sliver to prepare spun leather yarn is to release the sliver into the thickness of yarn by applying strength and uniformity to the sliver. That is, the step of applying twist and draft to the sliver is a process to make the sliver have a desired thickness by drawing it, concentrate and snarl the fiber by applying twist, and apply strength by providing friction between the fibers.
  • the twist number of the fiber is 400 TM to 1,000 TM
  • the thickness is 10 yarn count, 15 yarn count, 20 yarn count, or 25 yarn count.
  • the step (S400) of manufacturing spun leather yarn may be carried out at temperature of 20°C to 40°C and at humidity of 50% to 80%, preferably, at temperature of 25°C to 35°C and at humidity of 60% to 70%, since the mixed fiber may be scattered into the air during the spinning step due to the short length of the mixed fiber. If the mixed fiber is spun at the temperature and at the humidity, the spinning work can be carried out without scattering of the mixed fiber so as to easily manufacture spun leather yarn.
  • the method of manufacturing spun leather yarn may further include a covering step after the step (S400) of manufacturing spun leather yarn.
  • the covering step is carried out to reinforce physical properties, such as tensile strength and flexible rate, and is started from a step of holding the prepared spun leather yarn on a covering machine after winding of the prepared spun leather yarn is finished.
  • Yarn used in the covering step may be 30 denier to 150 denier polyester.
  • nylon or functional yarn such as high stretch yarn, high shrinkage yarn, or bulky yarn, may be used for the yarn used in the covering step.
  • S-shaped covering or Z-shaped covering may be used as a covering method, or a double covering which the S-shaped covering and the Z-shaped covering are performed at the same time may be carried out.
  • the covered yarn has a shape close to alphabet S.
  • the covering step may include a step of twisting the yarn additionally. In this instance, preferably, the twist number is 100 TM to 250 TM.
  • the spun leather yarn prepared using leather fiber manufactured according to an embodiment of the present invention enables the manufacture of fabrics, knitted goods, and lace goods, which have the nature of leather, thereby being capable of being effectively used for various fashion applications.
  • the spun leather yarn prepared using leather fiber manufactured according to an embodiment of the present invention can replace existing leather materials, which have been used in bags, athletic shoes, and the like, and thus is not affected by material supply in accordance with seasonal changes, and accordingly, the economic effect thereof is excellent.
  • the spun leather yarn has warmth retention and general flame retardancy, which are the properties of natural leather, and thus is of very high quality.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP19927639.5A 2019-05-09 2019-05-17 Verfahren zur herstellung von versponnenen ledergarn mit lederfaser und nach dem herstellungsverfahren hergestelltes versponnenes ledergarn Pending EP3967800A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190054077A KR102034218B1 (ko) 2019-05-09 2019-05-09 가죽섬유를 이용한 방적가죽원사의 제조방법 및 상기 제조방법에 따라 제조된 방적가죽원사
PCT/KR2019/005896 WO2020226220A1 (ko) 2019-05-09 2019-05-17 가죽섬유를 이용한 방적가죽원사의 제조방법 및 상기 제조방법에 따라 제조된 방적가죽원사

Publications (2)

Publication Number Publication Date
EP3967800A1 true EP3967800A1 (de) 2022-03-16
EP3967800A4 EP3967800A4 (de) 2023-01-25

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EP19927639.5A Pending EP3967800A4 (de) 2019-05-09 2019-05-17 Verfahren zur herstellung von versponnenen ledergarn mit lederfaser und nach dem herstellungsverfahren hergestelltes versponnenes ledergarn

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EP (1) EP3967800A4 (de)
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