WO2005064054A1 - A double-covered lycra soft yarn - Google Patents
A double-covered lycra soft yarn Download PDFInfo
- Publication number
- WO2005064054A1 WO2005064054A1 PCT/KR2004/003537 KR2004003537W WO2005064054A1 WO 2005064054 A1 WO2005064054 A1 WO 2005064054A1 KR 2004003537 W KR2004003537 W KR 2004003537W WO 2005064054 A1 WO2005064054 A1 WO 2005064054A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yarn
- double
- lycra soft
- covering
- nylon
- 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.)
- Ceased
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
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
Definitions
- This invention relates to the yarn for knitting socks, especially, the polyurethane based Lycra
- Soft 520 denier for the prevention of twist and maintenance of elasticity after processing.
- the Lycra Soft 520 denier yarn which is the core yarn, gives the elongation rate(tensile elongation 440.9%, permanent elongation 7.2%, restitution rate 98.2%) which is lower than the original value.
- core yarn used for producing socks has been used with special yarn feeding devices which incorporate anti-slip device for polyurethane yarn, without any specific processing, due to the high elasticity.
- the socks produced in this method present the characteristics of the Lycra Soft 520 denier yarn whfch has a stronger restitution and elongation than common yarn.
- the technical goal of this invention is to produce polyurethane based Lycra Soft yarn double covered with nylon, for the prevention of twisting and maintenance of elasticity after processing.
- nylon high speed textured yarn it is possible to replace the said nylon high speed textured yarn with any one of polyamide, polyester, or polypropylene fiber which are filament yarn or long staple, or with a long staple copolymer yarn.
- the Lycra Soft 520 denier yarn which is the core yarn, gives the elongation rate(tensile elongation 440.9%, permanent elongation 7.2%, restitution rate 98.2%) which is lower than the original value.
- Finished socks, as well as similar products, are heat treated(approximately for 40-50 minutes at 90- ⁇ 100°C) after dyeing in order to give high elasticity to the Lycra Soft 520 denier yarn double covered in accordance with this invention, and to strengthen the compression property of the prqduct by contracting the nylon 70D/24F/1 high speed textured yarn.
- the surface of the nylon 70D/24F/1 high speed textured yarn covering the Lycra Soft 520 denier yarn becomes smoother by the heat contraction, giving better wearing sense and the structural stability of the product, providing the elasticity and compression better than a compress.
- the core yarn produced by the art of this invention is not only used in a specific part of socks but used in all the part of socks except the toe and heel.
- the partial compression according to the shape of leg is controlled with the double covered yarn roller and the stepping motor which are installed at most sock knitting machines.
- the fruit of this invention can be maximized by incorporating proper management of production processes including knitting and after process treatments.
- the Lycra Soft yarn double covered with nylon high speed textured yarn can be protected from twisting and maintain high elasticity, therefore, the socks knitted with said yarn provide the elasticity better than a compress, soft restitution, soft wearing sense, and comfort.
- Figure 1 illustrates the Lycra Soft 520 denier yarn double covered by the art of this invention.
- the most desirable shape of the embodiment of this invention is the Lycra Soft 520 denier yarn, coyered first by S twisft and second by Z twist with nylon 70D/24F/1 high speed textureded yarn.
- Th ⁇ double covered Lycra Soft yarn of this invention is characterized by the polyurethane based Lycra Soft 520 denjer yarn double covered with nylon high speed textured yarn, to prevent twisting and maintain elasticity after processing.
- the said nylon high speed textured yarn is characterized by nylon 70D/24F/1 high speed textured yarn. And, the said nylon high speed textured is characterized by being replaced with any one of filament yarn, polyamide yarn, polyester yarn, or polypropylene yarn.
- the said double covering is characterized by first and second covering by S twist.
- the said double covering is characterized by S twist first and then Z twist second.
- the said double covering is characterized by Z twist first and then S twist second.
- the said double covering is characterized by first and second covering by Z twist.
- Figure 1 illustrates an embodiment of a core yarn double covered with nylon, comprising the core yarn(l ⁇ ) and nylon high speed textured yarn(20, 30).
- a core yarn(l ⁇ ) is the material of fabric, which is the polyurethane based Lycra Soft 520 denier yarn in this invention.
- Nyjon high speed textured yarn(20, 30) has superior elasticity and contraction by heat treatment, which is the nylon 70D/24F/1 high speed textured yarn in this invention.
- Figure 1 illustrates the Lycra Soft 520 denier yarn(l ⁇ ) double covered with nylon 70D/24F/1 high. speed textured yarn(20, 30) by S twist or Z twist, to prevent twisting and to maintain elasticity after processing.
- the said double covering may be carried out in such a manner that S twist covering first then Z twjst covering next, or in reverse.
- said double covering may be comprised of S twist or Z twist only for both first and second covering.
- the said nylon high speed textured yarn may be replaced with filament yarn, or any one of polyamide, poly ester, polypropylene which is long staple, or with long staple copolymer yarn.
- the Lycra Soft 520 denier yarn which is the core yarn, gives the elongation rate(tensile elongation 440.9%, permanent elongation 7.2%, restitution rate 98.2%) which is lower than the original value.
- Finished socks, as well as similar products, are heat treatedCapproximately for 40-50 minutes at 90 l00°C) after dyeing in order to give high elasticity to the Lycra Soft 520 denier yarn double covered in accordanpe with this invention, and to strengthen the compression property of the product by contracting the nylon 70D/24F/1 high speed textured yarn.
- the surface of the nylon 70D/24F/1 high speed textured yarn covering the Lycra Soft 52Q denier yarn becomes smoother by the heat contraction, giving better wearing sense and the structural stability of the product, providing the elasticity and compression better than a compress.
- the core yarn produced by the art of this invention is not only used in a specific part of socks but used in all the part of socks except the toe and heel.
- the partial compression according to the shape of leg is controlled with the double covered yarn roller and the stepping motor which are installed at most sock knitting machines.
- Soft 520 denier yarn processed by this invention, the feeding speed of the yarn into knitting machine with the double covered yarn roller, which is provided in most machines, and the stepping motor.
- the core yarn produced by the art of this invention is not only used in a specific part of socks " but used in all the part of socks except the toe and heel.
- the partial compression according to the shape of leg is controlled with the double covered yarn roller and the stepping motor wTi ⁇ ch are installed at most sock knitting machines.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Socks And Pantyhose (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0417891-2A BRPI0417891A (en) | 2003-12-30 | 2004-12-30 | soft double-lycra yarn |
| CA002551278A CA2551278A1 (en) | 2003-12-30 | 2004-12-30 | A double-covered lycra soft yarn |
| US10/584,784 US20080092511A1 (en) | 2003-12-30 | 2004-12-30 | Double covered lycra soft yarn |
| EP04808665A EP1702093A1 (en) | 2003-12-30 | 2004-12-30 | A double-covered lycra soft yarn |
| JP2006546848A JP2007518892A (en) | 2003-12-30 | 2004-12-30 | Double-covered lycra soft yarn |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2003-0040567 | 2003-12-30 | ||
| KR20-2003-0040567U KR200348046Y1 (en) | 2003-06-03 | 2003-12-30 | A double covered core yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005064054A1 true WO2005064054A1 (en) | 2005-07-14 |
Family
ID=36809341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/003537 Ceased WO2005064054A1 (en) | 2003-12-30 | 2004-12-30 | A double-covered lycra soft yarn |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080092511A1 (en) |
| EP (1) | EP1702093A1 (en) |
| JP (1) | JP2007518892A (en) |
| CN (1) | CN1902347A (en) |
| BR (1) | BRPI0417891A (en) |
| CA (1) | CA2551278A1 (en) |
| WO (1) | WO2005064054A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008019631A1 (en) * | 2006-08-15 | 2008-02-21 | Huawei Technologies Co., Ltd. | A method and system for transferring user equipment in mobile communication system |
| EP3444388A1 (en) * | 2017-08-15 | 2019-02-20 | Zhangjiagang Siqi Science and Technology Ltd | Yarn and yarn forming process therefor, and protective textile and knitting method and equipment therefor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5238483B2 (en) * | 2008-12-26 | 2013-07-17 | 株式会社スリーランナー | Socks with rib retaining structure |
| JP5467704B2 (en) * | 2011-10-07 | 2014-04-09 | 日本ジッパーチュービング株式会社 | Braided yarn and electromagnetic shielding braided sleeve |
| CN103668629A (en) * | 2013-12-19 | 2014-03-26 | 苏州尊元纺织有限公司 | Spandex composite wrap yarn |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05163626A (en) * | 1991-11-29 | 1993-06-29 | Asahi Chem Ind Co Ltd | Double covered elastic yarn |
| JPH07238429A (en) * | 1994-02-23 | 1995-09-12 | Toyobo Co Ltd | Doubly covered elastic yarn |
| JPH0967702A (en) * | 1995-08-25 | 1997-03-11 | Toyobo Co Ltd | Panty stocking |
| KR20000070540A (en) * | 1997-01-29 | 2000-11-25 | 요시다 다까시 | Stable Double Covered Elastic Yarn, Process for Making Same, and Fabric Comprising Same |
| JP2003119636A (en) * | 2001-10-11 | 2003-04-23 | Du Pont Toray Co Ltd | Double coated elastic yarn and method for producing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6240716B1 (en) * | 1997-01-29 | 2001-06-05 | Dupont Toray Company, Ltd. | Stable double covered elastic yarn, process for making same, and fabric comprising same |
-
2004
- 2004-12-30 WO PCT/KR2004/003537 patent/WO2005064054A1/en not_active Ceased
- 2004-12-30 BR BRPI0417891-2A patent/BRPI0417891A/en not_active IP Right Cessation
- 2004-12-30 JP JP2006546848A patent/JP2007518892A/en active Pending
- 2004-12-30 US US10/584,784 patent/US20080092511A1/en not_active Abandoned
- 2004-12-30 CA CA002551278A patent/CA2551278A1/en not_active Abandoned
- 2004-12-30 CN CNA200480039615XA patent/CN1902347A/en active Pending
- 2004-12-30 EP EP04808665A patent/EP1702093A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05163626A (en) * | 1991-11-29 | 1993-06-29 | Asahi Chem Ind Co Ltd | Double covered elastic yarn |
| JPH07238429A (en) * | 1994-02-23 | 1995-09-12 | Toyobo Co Ltd | Doubly covered elastic yarn |
| JPH0967702A (en) * | 1995-08-25 | 1997-03-11 | Toyobo Co Ltd | Panty stocking |
| KR20000070540A (en) * | 1997-01-29 | 2000-11-25 | 요시다 다까시 | Stable Double Covered Elastic Yarn, Process for Making Same, and Fabric Comprising Same |
| JP2003119636A (en) * | 2001-10-11 | 2003-04-23 | Du Pont Toray Co Ltd | Double coated elastic yarn and method for producing the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008019631A1 (en) * | 2006-08-15 | 2008-02-21 | Huawei Technologies Co., Ltd. | A method and system for transferring user equipment in mobile communication system |
| EP3444388A1 (en) * | 2017-08-15 | 2019-02-20 | Zhangjiagang Siqi Science and Technology Ltd | Yarn and yarn forming process therefor, and protective textile and knitting method and equipment therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007518892A (en) | 2007-07-12 |
| CN1902347A (en) | 2007-01-24 |
| EP1702093A1 (en) | 2006-09-20 |
| BRPI0417891A (en) | 2007-04-27 |
| US20080092511A1 (en) | 2008-04-24 |
| CA2551278A1 (en) | 2005-07-14 |
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