EP1359238B1 - Three-layer knitted fabric - Google Patents

Three-layer knitted fabric Download PDF

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Publication number
EP1359238B1
EP1359238B1 EP02711434A EP02711434A EP1359238B1 EP 1359238 B1 EP1359238 B1 EP 1359238B1 EP 02711434 A EP02711434 A EP 02711434A EP 02711434 A EP02711434 A EP 02711434A EP 1359238 B1 EP1359238 B1 EP 1359238B1
Authority
EP
European Patent Office
Prior art keywords
knit
knitted fabric
yarns
knit ply
ply
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.)
Expired - Lifetime
Application number
EP02711434A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1359238A1 (en
EP1359238A4 (en
Inventor
Tsuyoshi C/O TEIJIN LIMITED SOEDA
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Publication of EP1359238A1 publication Critical patent/EP1359238A1/en
Publication of EP1359238A4 publication Critical patent/EP1359238A4/en
Application granted granted Critical
Publication of EP1359238B1 publication Critical patent/EP1359238B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • 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
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/021—Moisture-responsive characteristics hydrophobic
    • 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
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
    • 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
    • D10B2501/00—Wearing apparel
    • D10B2501/02—Underwear

Definitions

  • the present invention relates to a knitted fabric having a triple knit ply structure. More particularly, the present invention relates to a knitted fabric having a the triple knit ply structure constituted from a front surface knit ply, a back surface knit ply and an intermediate knit ply arranged between the front and back surface knit plies and formed from hollow filament stitching yarns through which the front and back surface knit plies are tuck-stitched together.
  • the knitted fabric having a triple knit ply structure of the present invention is appropriately used for underwear which a high lightness (light weight property) and must have a high warmth (warm-keeping property).
  • a knitted fabric having a triple knit ply structure constituted by tuck-stitching front and back surface knit plies with stitching yarns has excellent bulkiness, warmth and a good appearance and thus is widely used for sport wear such as, for example, training wear, and casual clothes for children and women.
  • the knitted fabric having a triple knit ply structure is used for underwear, it must have a further enhanced warmth and lightness.
  • JP-5-148746-A describes a lightweight material, where filament yarns with a porosity of 3-50% are used as part of, or the whole of, the fibrous material, which comprises a thick knit fabric of high porosity with the ground textures on the surface and back surface connected to each other.
  • Conventional knitted fabrics for underwear which are produced from knitting yarns comprising natural fibers such as cotton fibers or a combination of natural fibers and synthetic fibers (for example, polyester or nylon fibers) or regenerated fibers (for example, rayon fibers) or semisynthetic fibers (for example, cellulose triacetate fibers), are widely used.
  • natural fibers such as cotton fibers or a combination of natural fibers and synthetic fibers (for example, polyester or nylon fibers) or regenerated fibers (for example, rayon fibers) or semisynthetic fibers (for example, cellulose triacetate fibers)
  • synthetic fibers for example, polyester or nylon fibers
  • regenerated fibers for example, rayon fibers
  • semisynthetic fibers for example, cellulose triacetate fibers
  • the front or back surface of the knitted fabric is nap-raised or, for knitting yarns, functional fibers, containing a substance capable of absorbing far infrared rays and/or near infrared rays and mixed into a fiber-forming polymer, or other functional fibers capable of generating heat by absorbing moisture in the ambient air, are used, to realize an enhancement of the warmth of the knitted fabric.
  • functional fibers containing a substance capable of absorbing far infrared rays and/or near infrared rays and mixed into a fiber-forming polymer, or other functional fibers capable of generating heat by absorbing moisture in the ambient air, are used, to realize an enhancement of the warmth of the knitted fabric.
  • the thickness of the knitted fabric may significantly increase.
  • An object of the present invention is to provide a knitted fabric having a triple knit ply structure, exhibiting high lightness and warmth and useful for knitted clothes.
  • the above-mentioned object can be attained by the knitted fabric having a triple knit ply structure of the present invention.
  • the knitted fabric having a triple knit ply structure of the present invention comprises a front surface knit ply having a yarn knit structure, a back surface knit ply having a yarn knit structure and a binding intermediate knit ply formed from stitching yarns through which the yarn knit structure of the front surface knit ply and the yarn knit structure of the back surface knit ply are tuck-stitched together, the stitching yarns being constituted from hollow fibers.
  • the stitching yarns are preferably polyester multifilament yarns having a thickness of 20 to 170 dtex, and a thickness of individual filaments of 1 to 10 dtex, the individual filaments preferably having a percentage of hollowness of 10 to 55%.
  • the knitted fabric having a triple knit ply structure of the present invention preferably has a thickness of 0.5 to 1.5 mm and a basis mass of 80 to 200 g/m 2 .
  • the binding intermediate knit ply preferably has a basis mass of 25 to 60 g/m 2 .
  • the knitted fabric having a triple knit ply structure of the present invention preferably has a heat-insulation efficiency ( ⁇ ) of 18% or more.
  • the yarns from which the front surface knit ply is formed are preferably bulky polyester multifilament yarns having a thickness of 20 to 17 dtex, and a thickness of individual filaments of 0.1 to 20 dtex.
  • the yarns from which the back surface knit ply is formed are preferably constituted from at least one type of fibers selected from natural fibers, synthetic fibers, regenerated fibers and semisynthetic fibers.
  • the knitted fabric having a triple knit ply structure of the present invention preferably has a tubular knit structure.
  • the knitted fabric having a triple knit ply structure is constituted from front and back surface knit plies formed from yarns knitted into knit ply structures and a binding intermediate knit ply formed from stitching yarns through which the yarn knit structure of the front surface knit ply and the yarn knit structure of the back surface knit ply are tuck-stitched together, and the stitching yarn from which the binding intermediate knit ply is formed are constituted from hollow fibers.
  • each of the hollow fibers comprises a peripheral shell portion extending along the longitudinal axis of the hollow fiber and having an annular cross-sectional profile and a hollow space surrounded by the peripheral shell and extending along the longitudinal axis of the hollow fiber.
  • the resultant knitted underwear cloth having the triple knit ply structure is used in the manner such that the back surface knit ply faces the skin surface and the front surface knit ply is exposed to the ambient air atmosphere.
  • the back surface knit ply in most cases, comes into contact with the skin of the user, and thus must have a good warmth and a high absorption of perspiration and moisture and must exhibit a good touch and hand; the front surface knit ply must exhibit a good appearance, and an appropriate sliding property on a coat superimposed on the underwear cloth; and the binding intermediate knit ply must have a firm tuck-stitching property, a good form-retaining property resistance to compression, and a high warmth.
  • the knitted fabric 1 having a triple knit ply structure is constituted from
  • Fig. 2 shows a photograph of a cross-section of an embodiment of the knitted fabric having a triple knit ply structure of the present invention.
  • yarns 2a from which the knit structure of the front surface knit ply 2 is constituted and yarns 3a from which the knit structured the back surface knit ply 3 is constituted, are tuck stitched by stitching yarns 4a of the binding intermediate knit ply 4.
  • the stitching yarn 4a constituted from filaments.
  • the filaments are hollow filaments of which the hollow cross-sectional profiles clearly appears in Fig. 2.
  • Fig. 3 shows a knit design of an embodiment of the knitted fabric having a triple knit ply structure of the present invention.
  • the knit designs (1) and (4) are of a front surface knit ply
  • the knit designs (2) and (5) are of a back surface knit ply
  • the knit designs (3) and (6) are of a binding intermediate knit ply.
  • the stitching yarns are preferably hollow multi-filament yarns.
  • the hollow multifilament yarns have a thickness of 20 to 170 dtex, more preferably 20 to 100 dtex; the individual filaments have a thickness of 1 to 10 dtex, more preferably 2 to 5 dtex, and a percentage of hollowness of 10 to 50%, more preferably 30 to 55%.
  • the percentage of hollowness of the hollow filaments refers to a percentage of the cross-sectional area of hollow portion of an individual hollow filament on the basis of the whole cross-sectional area of the individual hollow filament.
  • the stitching yarns may be spun yarns comprising hollow staple fibers (preferably having a thickness of 1 to 10 dtex and a percentage of hollowness of 10 to 55%) and preferably having a thickness of 20 to 170 dtex.
  • the hollow fibers are preferably selected from organic fibers for clothes, for example, hollow polyester filaments, hollow nylon filaments, hollow polyester staple fibers, hollow nylon staple fibers and composite fibers of these polymers.
  • hollow polyester filaments are preferably used for the present invention.
  • the binding intermediate knit ply preferably has a basis mass of 25 to 60 g/m 2 , more preferably 30 to 50 g/m 2 .
  • the basis mass is within the above-mentioned range, the resultant knitted fabric having a triple knit ply structure of the present invention exhibits high warmth and lightness.
  • the front surface knit ply of the knitted fabric having a triple knit ply structure of the present invention is preferably formed from bulky yarns, for example, false twist-textured yarns, spun yarns, air jet-interlaced filament yarns and yarns comprising two or more types of fibers or filaments different in shrinkage from each other.
  • the resultant knitted fabric exhibit a high warmth.
  • the yarns for forming the front surface knit ply preferably have a thickness of 20 to 170 dtex, more preferably 50 to 150 dtex, and the individual fibers for the yarns preferably have a thickness of 0.1 to 20 dtex, more preferably 2 to 5 dtex.
  • the type of the fibers from which the front surface knit ply is formed There is no limitation to the type of the fibers from which the front surface knit ply is formed.
  • fibers of polyesters, nylons, cellulose acetates, acrylic resins, rayon, cotton, wool and/or silk or composite fibers thereof may be used for the front surface knit ply.
  • the polyester fibers are preferably employed.
  • the fiber yarns as mentioned above are preferably selected from false twist-textured multifilament yarns, more preferably false twist-textured polyester multifilament yarns.
  • the front surface knit ply preferably has a basis mass of 20 to 60 g/m 2 , more preferably 30 to 50 g/m 2 .
  • the yarns from which the knit structure of the back surface knit ply is formed preferably comprises at least one type of fibers selected from natural fibers (for example, wool and silk fibers), synthetic fibers (for example, polyester, nylon and acrylic fibers), regenerated fibers (for example, rayon and cupra fibers), and semisynthetic fibers (for example, cellulose triacetate fibers).
  • natural fibers for example, wool and silk fibers
  • synthetic fibers for example, polyester, nylon and acrylic fibers
  • regenerated fibers for example, rayon and cupra fibers
  • semisynthetic fibers for example, cellulose triacetate fibers
  • the fiber yarns for the back surface knit ply are preferably selected from those exhibiting high comfort when the cloth is worn by a user, for example, cotton, rayon, polyester, and nylon yarns and composite yarns of the above-mentioned yarns.
  • the yarns for the back surface knit ply may be selected from multifilament yarns and spun yarns.
  • the multifilament yarns may be texturized bulky multifilament yarns.
  • the yarns for the back surface knit ply preferably have a thickness of 40 to 300 dtex (130 to 20 yarn number count), more preferably 70 to 200 dtex.
  • the back surface knit ply preferably has a basis mass of 30 to 100 g/m 2 , more preferably 40 to 70 g/m 2 .
  • the knitted fabric having a triple knit ply structure of the present invention preferably has a thickness of 0.5 to 1.5 mm, more preferably 0.6 to 0.8 mm, and a basis mass of 80 to 200 g/m 2 , more preferably 110 to 150 g/m 2 .
  • the knitted fabric having a triple knit ply structure of the present invention preferably exhibits a heat-insulation efficiency of 18% or more, more preferably 20% or more, determined by the following measurement.
  • a heating device 5 (large size BT-box, made by KATOTEC K.K., model: THERMOLABO II) is placed in air controlled to a uniform temperature of 20°C, in which device only a heating surface (dimensions: 10 cm x 10 cm) is exposed to the atmosphere and other surface are heat-insulated, and the temperature of the heating surface is maintained at a uniform temperature of 65°C.
  • a sample of a knitted fabric b having dimensions of 10 cm x 10 cm is placed on the heating surface.
  • an electric power consumption W in W needed to maintain the temperature of the heating surface at 65°C for one minute is measured.
  • an electric power consumption W 0 needed to maintain the temperature of the heating surface, on which no knitted fabric sample is placed, at 65°C for one minute is measured.
  • the knitted fabric having a triple knit ply structure of the present invention for example, a circular knitting machine is used, yarns for forming the knit structure of the front surface knit ply and yarns for forming the knit structure of the back surface knit ply are respectively supplied into the circular knitting machine through a cylinder side and a dial side of the machine and knitted into, for example, knit structures, as shown in Fig. 3 and, simultaneously, the knit structures of the front and back surface knit plies are tuck-stitched with stitching yarns, to form a binding intermediate knit ply.
  • the knitted fabric having a triple knit ply structure of the present invention will be further illustrated by the following examples, which are not intended to limit the scope of the present invention in any way.
  • a 23G double circular knitting machine was employed to produce a knitted fabric having a triple knit ply structure of the present invention.
  • the front surface knit ply was formed from false twist-textured polyethylene terephthalate filament yarns having a yarn count of 56 dtex/36 filaments, and the back surface knit ply was formed from spun cotton yarns having a thickness of 98 dtex (60 yarn number count).
  • the binding intermediate knit ply was formed from stitching yarns consisting of hollow polyethylene terephthalate filament yarns having a percentage of hollow of hollow filaments of 35% and a yarn count of 40 dtex/12 filaments.
  • the knit structures of the front and back surface knit piles are tuck-stitched by the stitching hollow filament yarns.
  • a knitted fabric having a triple knit ply structure as shown in Fig. 3 was obtained. Table 1 shows the thickness, basis mass and heat-insulation efficiency ⁇ of the resultant knitted fabric.
  • the resultant knitted fabric exhibited lightness, an excellent warmth and a soft surface touch. No projection or exposure of the stitching yarns of the binding intermediate layer to the outside of the front surface knit ply were found. Thus the resultant knitted fabric exhibited a good appearance and dignity.
  • a knitted fabric having a triple knit ply structure as shown in Fig. 3 was produced by using the same 23G double circular knitting machine as in Example 1, from false twist-textured polyethylene terephthalate filament yarns having a yarn count of 56 dtex/36 filaments for the front surface knit ply, spun cotton yarns having a thickness of 98 dtex (60 yarn number count) for the back surface knit ply and non-hollow polyethylene terephthalate filament yarns, having a yarn count of 56 dtex/24 filaments as stitching yarns for the binding intermediate knit ply.
  • Table 1 shows the thickness, basis mass and heat-insulation efficiency of the resultant knitted fabric.
  • the knitted fabric having a triple knit ply structure of Comparative example 1 had similar appearance, elegance, thickness and basis mass to that of the Example 1, but had an insufficient heat-insulation efficiency ⁇ .
  • a knitted fabric having a circular rib knit structure was produced from spun cotton yarns having a thickness of 147 dtex (40 yarn number count) by using a circular knitting machine.
  • Table 1 shows the thickness, basis mass and heat-insulation efficiency ⁇ of the resultant knitted fabric.
  • the resultant knitted fabric exhibited a significantly poor heat insulation efficiency ⁇ , while the thickness and the basis weight of the resultant knitted fabric were higher than those of Example 1.
  • the knitted fabric having a triple knit ply structure of the present invention exhibits an excellent warmth in relation to the thickness and basis mass thereof, an excellent lightness in relation to the thickness and the warmth thereof and thus is an appropriate textile material for the use in underwear which need high lightness and warmth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
EP02711434A 2001-02-08 2002-02-08 Three-layer knitted fabric Expired - Lifetime EP1359238B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001031996 2001-02-08
JP2001031996A JP3880320B2 (ja) 2001-02-08 2001-02-08 軽量保温編地を用いてなる肌着衣料
PCT/JP2002/001109 WO2002063082A1 (en) 2001-02-08 2002-02-08 Three-layer knitting fabric

Publications (3)

Publication Number Publication Date
EP1359238A1 EP1359238A1 (en) 2003-11-05
EP1359238A4 EP1359238A4 (en) 2004-03-17
EP1359238B1 true EP1359238B1 (en) 2007-04-04

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ID=18895996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02711434A Expired - Lifetime EP1359238B1 (en) 2001-02-08 2002-02-08 Three-layer knitted fabric

Country Status (7)

Country Link
US (1) US20040060328A1 (enExample)
EP (1) EP1359238B1 (enExample)
JP (1) JP3880320B2 (enExample)
KR (1) KR100821114B1 (enExample)
CN (1) CN1501996A (enExample)
DE (1) DE60219284T2 (enExample)
WO (1) WO2002063082A1 (enExample)

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CN109097896B (zh) * 2018-08-31 2020-04-21 闽江学院 一种导湿防水的纬编空气层织物生产方法
CN109183261B (zh) * 2018-09-19 2021-03-19 利郎(中国)有限公司 高保暖新型空气层毛呢面料的制备工艺
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Also Published As

Publication number Publication date
JP2002235264A (ja) 2002-08-23
KR100821114B1 (ko) 2008-04-11
WO2002063082A1 (en) 2002-08-15
US20040060328A1 (en) 2004-04-01
CN1501996A (zh) 2004-06-02
KR20030081428A (ko) 2003-10-17
EP1359238A1 (en) 2003-11-05
DE60219284D1 (de) 2007-05-16
JP3880320B2 (ja) 2007-02-14
DE60219284T2 (de) 2008-01-03
EP1359238A4 (en) 2004-03-17

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