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WO1999029942A1 - Fil elastique guipe, son procede de fabrication et produit en fibres forme du fil elastique guipe - Google Patents

Fil elastique guipe, son procede de fabrication et produit en fibres forme du fil elastique guipe Download PDF

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Publication number
WO1999029942A1
WO1999029942A1 PCT/JP1997/004463 JP9704463W WO9929942A1 WO 1999029942 A1 WO1999029942 A1 WO 1999029942A1 JP 9704463 W JP9704463 W JP 9704463W WO 9929942 A1 WO9929942 A1 WO 9929942A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
covering
thread
elastic yarn
core
Prior art date
Application number
PCT/JP1997/004463
Other languages
English (en)
Japanese (ja)
Inventor
Sigeru Mizutani
Yoshiaki Ueshima
Original Assignee
Sukaraa Haitatti Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sukaraa Haitatti Co., Ltd. filed Critical Sukaraa Haitatti Co., Ltd.
Priority to PCT/JP1997/004463 priority Critical patent/WO1999029942A1/fr
Publication of WO1999029942A1 publication Critical patent/WO1999029942A1/fr

Links

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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/322—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using hollow spindles
    • 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn

Definitions

  • the present invention relates to a coated elastic yarn (covered yarn) in which a core elastic yarn is covered (covered) in a coil shape in a state where the surface is smoothed by a coating yarn, and a method for producing the same. Furthermore, the present invention relates to textile products such as stocking products and underwear products which are knitted or woven using the above-mentioned coated elastic yarn, have an excellent feel when worn, are durable, and have a rich fit. . Background art
  • the coated elastic yarn is a coil yarn wound around an elastic yarn with poor dyeability and durability, such as Nymouth polyester, and has a large stretch and tightening force.
  • Conjugate fiber Textile products using coated elastic yarn are widely used in the garment field, including textile products that require adhesion and tightening force, such as stocking products and underwear products. These textiles are attractive for their elasticity and tightening force, which are not available in conventional textiles, and have the effect of tightly fitting the wearer and firmly tightening the leg and waist body lines.
  • the coating elastic yarn has a drawback that the knitted fabric becomes thicker because the coating yarn is wound around the core yarn. It has been studied to solve this drawback by using fineness yarn, but it is difficult to achieve a sufficiently high level of durability, because the coating state of the coating yarn is not always uniform. It is thought that it depends.
  • Replacement form (Rule 26) That is, in the conventional coated elastic yarn, the coating yarn is wound relatively uniformly in contact with the core yarn immediately after production. However, when the coated elastic yarn wound on the package is unraveled to be processed into a textile product, it shrinks momentarily once more than 20%, and in some cases, by about 30%, and guides, etc. It is stretched by the contact resistance of knitting needles, mesh loops, etc., and is knitted or woven.
  • the knitted fabric is relaxed, and usually shrinks by 50 to 70% through a dyeing process and the like. During knitting, even if it is temporarily relaxed, shrinkage of more than 20% cannot be avoided. If the covering elastic yarn shrinks, even if it is momentary, the covering yarn rises from the core yarn, and part of the covering yarn is squeezed by the needle, sinker, knitting loop, etc., and becomes loose after processing. I will put it.
  • the original shape of the stock is knitted using coated elastic yarn, subjected to heat shrinkage treatment, sewn, and dyed to give a finished product.
  • the covering elastic yarn is repeatedly opened, shrunk, heated, and stirred in the fluid, etc., and is repeatedly lifted off from the core yarn and rubbed.
  • a torque based on the twist generated when the covering yarn is wound, and a twist due to the stirring flow of the dyeing solution are added.
  • uneven coating, entanglement, kinkythread, and fraying of the coating yarn may occur, and the core yarn may be partially exposed, reducing the durability of the knitted fabric or woven fabric, and improving the appearance and smoothness. Feeling is impaired.
  • the above-mentioned problem can be solved to some extent by a high-density covering elastic yarn in which the covering yarn is wound at a high density, but the torque generated when the covering yarn is wound at a high density is too large to be practically used. .
  • the present invention provides a fiber product which is thinner and more durable than a conventional fiber product using a coated elastic yarn, and which has excellent touch and fashionability. Even after processing into a textile product, the coating yarn is wound in close contact with the core yarn evenly, causing uneven coating, entanglement, and tingling of the coating yarn.
  • the potential contraction rate R s is given by equation (3).
  • L f is the ratio of the unloaded state of the core yarn unwound from the package to the core yarn length in the package
  • L b is the unloaded state of the core yarn length with respect to the aforementioned core yarn length.
  • the ratio is the length of the yarn after heating it in boiling water for 15 minutes and air-drying without any load. That is, (1 Lb) corresponds to the total contraction amount, and (Lf-Lb) corresponds to the potential contraction amount.
  • the coated elastic yarn of the present invention is obtained by covering the elastic yarn (core yarn) with the coating yarn wound in a coil shape.
  • This is a coated elastic yarn in which the coating yarn is heated to a temperature lower by 60 to 20 ° C than the melting point temperature of the coating yarn and heat-fixed, and the coating yarn is adhered to the core yarn.
  • the number of twists that do not occur (T c) is kept within the range shown by equation (1).
  • T c is the number of twists per lm of the covering yarn.
  • This covering elastic yarn is formed by winding the covering yarn uniformly in close contact with the core yarn.
  • the coating yarns are processed into highly durable textiles that are free from uneven coating, entanglement, and piracy. be able to.
  • a nylon yarn is preferably used for the coating yarn.
  • These coated elastic yarns can be formed into a high-density coated fiber having an extremely smooth surface and suitable for high-grade textile products by winding the coating yarn around the core yarn at least 2,400 times per lm.
  • the coated elastic yarn of the present invention is a coating elastic yarn obtained by continuously covering a stretched elastic yarn running at a predetermined speed (S1) with a coating yarn to form a coated elastic yarn. Controlling the running speed (S2) as shown in the following equation (2), heating to a temperature 60 to 20 ° C lower than the melting point of the coating yarn, heat fixing, cooling, and winding it into a package to manufacture Can be.
  • nylon 6 yarn is used for the coating yarn, it should be continuous with the stretched elastic yarn (core yarn) running at the specified speed (S1). Then, the traveling speed (S2) of the covering elastic yarn is controlled to 84% to 105% of the traveling speed (S1), and the covering elastic yarn is controlled at 170 ° C to 200 ° C. It is recommended that the coated elastic yarn be manufactured by heating at a temperature of ° C, heat setting, cooling, and winding up the package.
  • the coated elastic yarn of the present invention can be used for knitting various fiber products, especially knitted goods, especially stocking products and underwear products, including the case of cross-knitting or weaving with other fibers, similarly to the conventional coated elastic yarn. It is preferably used.
  • the leg portion may be alternately knitted at a ratio of 0 to 1 for the number of yarn supply ports of the inelastic yarn to 1 for the number of supply ports of the coated elastic yarn.
  • Fig. 1 is an explanatory diagram showing the processing system of a multi-spindle single force balling device provided with heating means 11, and Fig. 2 shows a processing system for one weight in a double covering device provided with heating means 26.
  • the coated elastic yarn of the present invention is obtained by winding a non-elastic yarn such as nylon or polyester in a coil shape around an elastic yarn such as polyurethane as a core yarn as a coating yarn. Heated at a low temperature of 60 to 20 ° C and firmly heat-fixed. As described above, since the covering yarn in the covering elastic yarn is twisted when wound around the core yarn, a torque which may be referred to as a twisting property due to twisting is generated, which causes the problem.
  • the twist property of the covering yarn itself that is, the potential twist number Tc is determined by the number of twists generated by the force-balancing represented by the formula (1).
  • the covering yarn in the covering elastic yarn has no torque.
  • the method of checking the number of twists Tc will be described first for a single-covered coated elastic yarn.
  • the number of machines is shown per m.
  • Set the coated elastic yarn on the twisting machine completely decompose the flame, cut off the core yarn, and make a sample of the coated yarn only.
  • After twisting the sample in the opposite direction and the same number of times T0 as when untwisting the sample relax the sample and check the direction in which pilging occurs. Further, twisting is performed in the direction of torque disappearing in the direction of the torque according to the direction of the pilfer, in units of 50 t / m (the number of twists). In the same manner, the state of generation of the pilfer is confirmed.
  • Tc is equal to To, but as the degree of heat-setting decreases, Tc decreases, and Tc becomes
  • Tc does not become larger than To except in special cases such as winding a previously rubbed coating thread.
  • the present inventor has found that when T c is within the range of (T 0 soil 300), substantially no torque is generated in the covered state.
  • Tc is out of the range of the expression (1), the surface of the coated elastic yarn lacks smoothness and is liable to be tangled or entangled.
  • the same confirmation as above was performed for the outer layer coating yarn.
  • the outer layer coating yarn was untwisted, the inner layer coating yarn and the core yarn were cut off, and the Tc of the outer layer coating yarn was determined in the same procedure as described above.
  • the reason why the Tc of the outer layer covering yarn is adopted as a criterion in the double cover coated elastic yarn is that the state in which the outer layer covering yarn is wound controls most of the surface properties of the covering elastic yarn. It depends.
  • the above-mentioned heat setting is performed by heating to a temperature that is considerably higher than the maximum heating temperature in the processing step of the coated elastic yarn and lower than the melting point temperature of the coating yarn by 60 to 20 ° C., and is strongly applied.
  • the effect of heat setting is not lost.
  • the heat setting is carried out at 160 ° C. to 200 ° C., preferably at 170 ° C. to 200 ° C.
  • the second purpose of the heat setting is to make the covering yarn tightly adhere to the core yarn.
  • both of the above-mentioned yarns are simultaneously heat-set at a relaxation rate within a range not exceeding the shrinkage rate of the coating elastic yarn, so that the coating yarn is brought into close contact with the core yarn surface or slightly bites into it.
  • the covering yarn is nylon 6
  • the total shrinkage is usually in the range of 10 to 17%, so it is 84%, preferably 87%, relative to the running speed of the yarn during the covering process. It is recommended to heat-fix at a running speed exceeding If the running speed ratio is too small, the relaxation becomes excessive, and unevenness of the coating occurs due to torque and the like before the yarn for coating is heat-fixed in a required state for the first purpose.
  • the irregularities may be heat-fixed. Also, the higher the traveling speed ratio, the closer the covering yarn adheres to the core yarn. However, if the ratio is excessive, the core yarn may be damaged. Therefore, the upper limit is set at 110%, preferably at 105%.
  • a third object of the heat setting is to make the latent elasticity of the coated elastic yarn 85% or more, preferably 90% or more.
  • the coated elastic yarn in this state hardly shrinks even when unpacked from the package, so that the covering yarn does not float from the core yarn when knitting or weaving into a fabric, and the surface is extremely smooth. It can be easily processed into fabric.
  • the coated elastic yarn shrinks, and the fabric is given a sufficient elasticity as a fiber product.
  • the coating yarn of the present invention has such a uniform surface state, it has not only durability but also a smooth feel and an excellent appearance.
  • the method for producing a coated elastic yarn of the present invention is used, after the coating yarn is wound around the core yarn, it is successively firmly heat-fixed to remove torque, and is in close contact with the core yarn. Conventionally, it is difficult to carry out the method because an excessive torque is generated.
  • a single-cover high-density wound coated elastic yarn of 2,400 t / m or more can be easily manufactured. This high-density wrapped elastic yarn hardly shrinks when processed into a fabric, and is one-dimensional.
  • a covering device provided with a heating means suitable for carrying out the present invention will be specifically described with reference to FIG. 1 and FIG.
  • the package 1 is rotated on the roll 2, the elastic yarn 4 serving as the core yarn is taken up by the pre-elongation imparting roll 3, and the total elongation imparted roll 5 is formed.
  • the elastic yarn 6 is subjected to elongation and addition, and is passed through the covering zone 7.
  • the covering yarn is taken from the covering yarn spindle 8 and covered with the core yarn 6.
  • the weights are brought close to each other and the positions of the coating yarn spindles 8 of each weight are alternately shifted, so that the pre-elongation applying roll 3 and the coating yarn spindle 8 are attached.
  • the yarn path between and has a length.
  • an auxiliary yarn feeding device 14 for adjusting the yarn path length of the core yarn to the shorter one is preferably installed.
  • the coated elastic yarn 9 that has completed the force balling passes through the heating means 11 continuously, is heated to a predetermined temperature, and is thermally fixed.
  • the heating means There is no particular limitation on the heating means, and a heating plate, a heating cylinder, a heating drum, or the like that can provide a heating temperature of 170 to 200 ° C. can be used. Further, in order to carry out the present invention, it is important to relax the heat setting at a required traveling speed ratio with respect to the traveling speed in the step before the total elongation imparting roll 5, that is, the traveling speed in the force balling step. You.
  • a heat fixing section speed control roll 12 is provided following the heating means 11, and the running speed of the covered elastic yarn before and after the total elongation imparting roll 5 and after the heat fixing section speed control roll 12 is independently controlled. It is desirable to be able to control Heat
  • the double covering device shown in FIG. 2 does not have an auxiliary yarn supplying device, but has a heating means 26 and has two force covering zones 23 and 24.
  • 21 is an elastic yarn package
  • 22 is a pre-elongation imparting roll
  • 25 is a total elongation imparting roll
  • 27 is a heat fixing part speed control roll
  • 28 is a coated elastic yarn winding package.
  • the above-mentioned coated elastic yarn of the present invention maintains its original shape even when processed into a textile product including a knitted fabric and a woven fabric, is easy to process, has a smooth tactile sensation, and has durability. It can be preferably used.
  • the coated elastic yarn of the present invention can be used in the main part according to the intended use of the fiber product to exert its effect, and may be knitted and woven with other fibers.
  • the covering yarn adheres tightly to the core yarn, does not easily float due to the expansion and contraction of the yarn, and hardly shrinks, so that knitting and weaving are easy.
  • There is no particular limitation on the use cradle and it may be appropriately reduced according to the purpose. Generally, it is desirable to mix and interweave 30% by weight or more in the main part.
  • the number of non-elastic yarns such as nylon filament is alternately knitted at a ratio of 0 to 1 with respect to the number 1 of elastic yarn-coated elastic yarn supply yarns.
  • yarns other than the coated elastic yarns it is possible to manufacture a product having good wearing feeling, durability and excellent quality.
  • the textile product of the present invention is suitable for clothing and knitted fabrics, especially for products that come into contact with the skin, such as stocking products, underwear products, and girdle products.
  • the high-density wound coated elastic yarn is suitable for the field of thin knitted fabrics, which have conventionally had a problem in durability, and is used for high-grade thin knitted fabrics in which fashionability is important, particularly
  • the coated elastic yarn was manufactured using a single-covered yarn manufacturing apparatus and a double-covered yarn manufacturing apparatus of the same type as shown in FIGS. 1 and 2.
  • the core yarn used was 13 denier polyurethane elastic fiber.
  • the coating yarn is a commercially available nylon 6 denier 5 filament and 10 denier 10 filament spun directly drawn yarn which is heated and drawn to 1.2 times and wound up on a bobbin for covering.
  • the coating yarns shown in Table 1 were produced. This coating yarn was wound around a core yarn under the conditions shown in Table 1 and heat-set to produce a coated elastic yarn. Latent shrinkage and twisting properties of the coated yarn of the manufactured coated elastic yarn were confirmed by the method described above.
  • pantyhose knitting was performed using a stocking knitting machine with four yarn feeders, a caliber of 3/3/4 inch and a stitch number of 402. Only the coated elastic yarn was used for the redder portion.
  • Table 1 shows the results of observation of the covering state of the elastic yarn with a magnifying glass and the results of evaluation of wearing.
  • the covering elastic yarns of the leg portions in Examples 1 to 5 kept the covering yarn wound in a substantially parallel coil shape, and were very good with little occurrence of bias, tingling or entanglement. Further, a high density wound coated elastic yarn having a density of 2,700 t / m, which was not obtained in the conventional example 2, was produced. High-density wrapping The elastic yarn did not have any particular problems in the knitting process, and high-quality pantyhose could be knitted. However, the high-density wrapped elastic yarn of 2,500 t / m, which was tried in Comparative Example 2, generated many pills in the knitting process, and it was virtually impossible to knit the pantyhose sticking.
  • pantyhose with leg portions was formed by alternate knitting on a one-to-one basis, and the knitted pantyhose was commercialized by a conventional method, and measured and evaluated.
  • Comparative Examples 4 and 5 the coated elastic yarn produced in Comparative Examples 1 and 3 and the nylon yarn of 15 denier and 5 filaments were used in the same knitting machine as in Example 6 to form a one-port pair. A pantyhose with a leg part was knitted by alternate knitting with one mouth, and the product was commercialized by a standard method, and measurement and evaluation were performed. These results are summarized in Table 2.
  • the coated elastic yarn of the present invention manufactured in Example 1 and 20 denier 20 filament nylon were manufactured using a circular knitting machine having 8 yarns, a diameter of 12 inches, and a number of stitches of 1,2,4.
  • the knitted fabric for the body part of the women's panties was obtained by alternate knitting with yarns one by one.
  • the obtained knitted fabric was cut, sewn, dyed and processed into women's panties.
  • the covering elastic yarn of the panty was observed with a magnifying glass, the arrangement of the covering yarn was maintained.
  • the results of the wearing evaluation showed that the product had a texture of high-end products, and there was no tearing during wearing for a total of 10 days despite being a thin product.
  • the coating yarn of the present invention is uniformly wound around the core yarn even after being processed without disturbing the winding shape of the coating yarn in the process of processing into a textile product, and the coating unevenness, entanglement, There is no occurrence. Therefore, it is possible to produce a high-quality, soft, transparent, fashionable and durable textile product. In addition, since high-density coated elastic fiber can be easily produced, it is suitable as a high-grade textile product, particularly as a stocking or underwear product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un fil élastique guipé qui n'est pas mal enroulé, qui n'est pas inégal, qui n'est ni enchevêtré, ni entortillé, etc. lors du procédé de fabrication d'un produit en fibres et qui comprend un fil central et un fil de revêtement enroulé de manière uniforme autour du fil central même après le procédé. Une fois que le fil élastique (fil central) est guipé avec du fil de revêtement, le fil élastique guipé est chauffé à une température entre 60 et 20 °C inférieure au point de fusion du fil de revêtement pour la fixation de chaleur de manière à lier le fil de revêtement de manière étroite avec le fil central. Le nombre (Tc) de torsions sur 1 m de fil central sans entortillements est calculé par la formule (1): To 300 ∑ d ≤ Tc ≤ To + 300 ∑ d, dans laquelle d représente la finesse du fil simple du fil de revêtement (en denier) et To représente le nombre de torsions du fil de revêtement sur 1m de fil central. Le rapport de contraction éventuelle est, de préférence, supérieur à 85 % du rapport de contraction totale. On préfère utiliser du fil en Nylon comme fil de revêtement. On peut alors fabriquer des produits en fibres de haute qualité, confortables, transparents et à la mode. Etant donné qu'il est aisé de fabriqué une fibre élastique guipée haute densité, la fibre s'utilise dans la fabrication de produits en fibres fines très haute teneur, tels que des bas et des sous-vêtements.
PCT/JP1997/004463 1997-12-05 1997-12-05 Fil elastique guipe, son procede de fabrication et produit en fibres forme du fil elastique guipe WO1999029942A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP1997/004463 WO1999029942A1 (fr) 1997-12-05 1997-12-05 Fil elastique guipe, son procede de fabrication et produit en fibres forme du fil elastique guipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/004463 WO1999029942A1 (fr) 1997-12-05 1997-12-05 Fil elastique guipe, son procede de fabrication et produit en fibres forme du fil elastique guipe

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WO1999029942A1 true WO1999029942A1 (fr) 1999-06-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1746189A1 (fr) 2005-07-19 2007-01-24 Cognon-Morin SA Fil guipé destiné à constituer au moins une partie d'un article de contention et article de contention associé
JP2008519919A (ja) * 2004-11-10 2008-06-12 インヴィスタ テクノロジー エスアエルエル スパンデックスおよび硬質糸を含む弾性シャツ布地の製造方法
ITUB20153354A1 (it) * 2015-09-02 2017-03-02 Ratti Luino S R L Macchina e procedimento per la realizzazione di filati, in particolare tecnici.
TWI786138B (zh) * 2017-06-29 2022-12-11 日商東麗奧培隆特士股份有限公司 彈性紗卷層體捲裝

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03260101A (ja) * 1990-03-05 1991-11-20 Kanebo Ltd ストッキング
JPH05171537A (ja) * 1991-12-25 1993-07-09 Toray Ind Inc 被覆弾性糸およびその製造方法
JPH0689494B2 (ja) * 1988-09-29 1994-11-09 帝人株式会社 特殊織編物
JPH09279430A (ja) * 1996-04-15 1997-10-28 O I Kogyo Kk 複合糸及びそれを用いたニット製品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0689494B2 (ja) * 1988-09-29 1994-11-09 帝人株式会社 特殊織編物
JPH03260101A (ja) * 1990-03-05 1991-11-20 Kanebo Ltd ストッキング
JPH05171537A (ja) * 1991-12-25 1993-07-09 Toray Ind Inc 被覆弾性糸およびその製造方法
JPH09279430A (ja) * 1996-04-15 1997-10-28 O I Kogyo Kk 複合糸及びそれを用いたニット製品

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008519919A (ja) * 2004-11-10 2008-06-12 インヴィスタ テクノロジー エスアエルエル スパンデックスおよび硬質糸を含む弾性シャツ布地の製造方法
EP1746189A1 (fr) 2005-07-19 2007-01-24 Cognon-Morin SA Fil guipé destiné à constituer au moins une partie d'un article de contention et article de contention associé
ITUB20153354A1 (it) * 2015-09-02 2017-03-02 Ratti Luino S R L Macchina e procedimento per la realizzazione di filati, in particolare tecnici.
TWI786138B (zh) * 2017-06-29 2022-12-11 日商東麗奧培隆特士股份有限公司 彈性紗卷層體捲裝

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