US20100055381A1 - Sheet Material - Google Patents

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Publication number
US20100055381A1
US20100055381A1 US12/515,168 US51516807A US2010055381A1 US 20100055381 A1 US20100055381 A1 US 20100055381A1 US 51516807 A US51516807 A US 51516807A US 2010055381 A1 US2010055381 A1 US 2010055381A1
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US
United States
Prior art keywords
yarn
ground
subsequently
weave
connecting yarn
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.)
Abandoned
Application number
US12/515,168
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English (en)
Inventor
Tetsuo Yamaguchi
Naoaki Kontani
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.)
Hokuriku S T R Cooperative
Original Assignee
Hokuriku S T R Cooperative
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 Hokuriku S T R Cooperative filed Critical Hokuriku S T R Cooperative
Assigned to HOKURIKU S.T.R COOPERATIVE reassignment HOKURIKU S.T.R COOPERATIVE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KONTANI, NAOAKI, YAMAGUCHI, TETSUO
Publication of US20100055381A1 publication Critical patent/US20100055381A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/006—Use of three-dimensional fabrics
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7011—Upholstery springs ; Upholstery of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/02—Pile fabrics or articles having similar surface features
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/06—Patterned fabrics or articles
    • 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
    • D10B2403/0111—One hairy surface, e.g. napped or raised
    • 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
    • D10B2505/00—Industrial
    • D10B2505/08—Upholstery, mattresses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/2395—Nap type surface

Definitions

  • the present invention relates to a sheet material having a three-dimensional knitted fabric used as a cushioned supporting surface for a seating face and a backrest surface of a vehicle seat and a furniture chair for example.
  • a seating face and a backrest in a conventional seat structure are configured to include therein a pad made of polyurethane foam or the like in order to flexibly support the body of a user, and the pad is covered by a knitted fabric.
  • a double-type warp-knitted fabric has been proposed as another knitted fabric.
  • the double-type warp-knitted fabric does not require the pad made of polyurethane foam or the like and provides a flexible supporting property by itself.
  • the double-type warp-knitted fabric is a three-dimensional knitted fabric composed of a surface ground weave and a backside ground weave and connecting yarns connecting them.
  • the double-type warp-knitted fabric can be manufactured by a known Double Raschel machine.
  • the surface ground weave is generally subjected a napping (raising) processing from the aesthetic viewpoint and the nap is caused to externally expand.
  • a related technique is disclosed in Japanese Patent Publication No. 3136342.
  • the three-dimensional knitted fabric as described above is repeatedly deformed in the thickness direction and the shearing direction.
  • a knit texture of the three-dimensional knitted fabric must be configured to maintain the stability of the shape of three-dimensional knitted fabric with regard to the connecting yarns in particular.
  • lapping by the connecting yarns to the surface ground weave has a significant influence on the hook of the fabric by a napping means such as a napping needle during a napping processing.
  • the napping may be locally disturbed or disordered Specifically, such a knit texture that only focuses on the stability of the shape has a risk where the nap is consequently nonuniform.
  • a sheet material comprises a three-dimensional knitted fabric.
  • the three-dimensional knitted fabric includes: a surface ground weave having a napped open-lap knit texture; a backside ground weave having an open-lap knit texture; and a connecting yarn connecting the surface ground weave to the backside ground weave.
  • the three-dimensional knitted fabric is manufactured by a Double Raschel machine having, with regard to a knitting needle, a 0th position to a 7th position for guide.
  • the surface ground weave includes: an outermost knit texture obtained by; overlapping a first ground yarn from the 3rd position to the 2nd position, from the 4th position to the 3rd position, or from the 5th position to the 4th position; subsequently swinging out the first ground yarn to underlap the first ground yarn to the 0th position; subsequently overlapping the first ground yarn from the 0th position to the 1st position; and subsequently swinging out the first ground yarn to underlap the first ground yarn to the 4th position; and a second outermost knit texture obtained by: overlapping a second ground yarn from the 0th position to the 1st position; subsequently swinging out the second ground yarn to underlap the second ground yarn to the 2nd position; subsequently overlapping the second ground yarn from the 2nd position to the 1st position; and subsequently underlapping the second ground
  • the connecting yarn has a knit texture obtained by: overlapping the connecting yarn from the 4th position to the 5th position; subsequently swinging out the connecting yarn to underlap the connecting yarn from the 5th position to the 1st position; subsequently overlapping the connecting yarn from the 1st position to the 0th position; subsequently underlapping the connecting yarn from the 0th position to the 3rd position; subsequently overlapping the connecting yarn from the 3rd position to the 2nd position; subsequently swinging out the connecting yarn to underlap the connecting yarn from the 2nd position to the 6th position; subsequently overlapping the connecting yarn from the 6th position to the 7th position; and subsequently swinging out the connecting yarn to underlap the connecting yarn from the 7th position to the 4th position.
  • the connecting yarn is knitted to have a loop with the surface ground weave and the backside ground weave by: overlapping the connecting yarn in an opposite direction to a ground yarn constituting the outermost knit texture of the surface ground weave, underlapping the connecting yarn in the same direction thereto, overlapping the connecting yarn in the same direction to a ground yarn constituting the knit texture at the second side of the surface ground weave from the outer side, and underlapping the connecting yarn in an opposite direction thereto, the connecting yarn being knitted by two needle spaces or more.
  • FIG. 1 is a side view illustrating the main part of a Double Raschel machine for manufacturing a sheet material according to an illustrative embodiment of the present invention.
  • FIG. 3 illustrates the knit texture of the sheet material showing the status of a plurality of ground yarns in a superposed manner.
  • the Double Raschel machine illustrated in FIG. 1 includes: front and rear needle kettles 7 and 8 ; knitting needles 9 and 10 constituting front and rear columns F and B; and a plurality of guides L 1 to L 6 for guiding ground yarn 11 to 16 .
  • the respective guides L 1 to L 6 can guide yarns by being moved from the position number 0 as a starting point to the positions of the position numbers 0, 1, 2, 3, 4, 5, 6, and 7. By the moves the guides L 1 to L 6 can cooperate with the knitting needles to knit yarns into a knit texture.
  • the sheet material according to this embodiment is a three-dimensional knitted fabric and has a surface ground weave 60 ; a backside ground weave 70 ; and a connecting yarn 80 connecting the surface ground weave 60 to the backside ground weave 70 .
  • the connecting yarn 80 has an open-lap (open loop) knit texture to the surface ground weave 60 and the backside ground weave 70 .
  • the surface ground weave is subjected to a napping processing to externally expand the nap.
  • the ground yarns 11 and 12 forming the surface ground weave 60 are sent through the guides L 1 and L 2 .
  • the ground yarns 15 and 16 forming backside ground weave 70 are sent through the guides L 5 and L 6 .
  • the ground yarns 13 and 14 functioning as the connecting yarns 80 connecting the surface ground weave 60 to the backside ground weave 70 are sent through the guides L 3 and L 4 .
  • the ground yarn 11 is overlapped with regard to the front knitting needle column F by the guide L 1 from the position number 4 to the position number 3 and is then swung out (swung back) and is underlapped to the position number 0. Then, the ground yarn 11 is overlapped from the position number 0 to the position number 1 and is swung out and is underlapped to the position number 4. This process is assumed as one cycle, By repeating the cycle, the ground yarn 11 is knitted to form the outermost open-lap knit texture in the surface ground weave 60 . It is noted that, instead of overlapping the ground yarn 11 from the position number 4 to the position number 3, the ground yarn 11 also may be knitted by being overlapped from the position number 3 to the position number 2 or from the position number 5 to the position number 4.
  • the ground yarn 15 is overlapped with regard to the rear knitting needle column B by the guide L 5 from the position number 0 to the position number 1. Then, the ground yarn 15 is swung out and is underlapped to the position number 2 and is overlapped from the position number 2 to the position number 1. Thereafter, the ground yarn 15 is swung out and is underlapped to the position number 0. This process is assumed as one cycle. By repeating the cycle, the ground yarn 15 is knitted to form a second outermost open-lap knit in the backside ground weave 70 .
  • the ground yarn 16 is overlapped with regard to the rear knitting needle column B by the guide L 6 from the position number 3 to the position number 2 and is swung out and is underlapped to the position number 0. Then, the ground yarn 16 is overlapped from the position number 0 to the position number 1 and is swung out and is underlapped to the position number 3. This process is assumed as one cycle. By repeating the cycle, the ground yarn 16 is knitted to form an outermost open-lap knit texture in the backside ground weave 70 .
  • any of the surface ground weave 60 and the backside ground weave 70 including the ground yarns 11 , 12 , 15 , and 16 has an open-lap knit texture.
  • the ground yarn 13 constituting the connecting yarns 80 is overlapped from the position number 4 to the position number 5.
  • the ground yarn 12 and the ground yarn 13 are introduced in the same direction and thus the ground yarn 12 is hidden under the back side of the ground yarn 13 .
  • the ground yarn 11 in the surface ground weave 60 is overlapped from the position number 4 to the position number 3, the ground yarn 11 is in an opposite direction to the ground yarn 12 and thus is exposed at the surface of the surface ground weave 60 .
  • the ground yarn 12 is prevented from being extruded from the ground yarn 11 .
  • any of the connecting yarns 13 and 14 is knitted to have loops with the surface ground weave 60 and the backside ground weave 70 .
  • the connecting yarns 13 and 14 are overlapped, with regard to the ground yarn 11 constituting the outermost knit texture in the surface ground weave 60 , in the opposite direction, while being underlapped in the same direction.
  • the connecting yarns 13 and 14 are prevented from being extruded from the ground yarn 11 . Since the connecting yarns 13 and 14 are both formed by two needle spaces or more, the connecting yarns 13 and 14 are easily fallen and contribute to the cushioning property of the three-dimensional knitted fabric.
  • ground yarns 11 , 12 , 13 , 14 , 15 , and 16 may be an appropriate yarn and is not limited.
  • the ground yarns 11 , 12 , 13 , 14 , 15 , and 16 may be made of natural fibers such as cotton or synthetic fibers such as the nylon-base, aramid-base, polyester-base, or polyacryl-base ones.
  • the ground yarns 11 , 12 , 15 , and 16 constituting the surface ground weave 60 and the backside ground weave 70 are preferably made of polyester-base fibers.
  • the ground yarns 13 and 14 functioning as the connecting yarns 80 may be made of fibers having superior strength and elastic recovery.
  • the fibers as described above illustratively include, for example, aromatic polyamide or polytrimethylene terephthalate fibers. Any of these fibers can be used as monofilament yarns, multi filament yarns, or bundled yarns. However, the use of these fibers as monofilament is advantageous from the viewpoints of strength and elastic recovery.
  • the ground yarns 11 , 12 , 15 , and 16 may also be monofilament yarns, multi filament yarns, or bundled yarns. However, the use of these fibers as multi filament yarns or bundled yarns is advantageous in a napping process and reduces the deterioration of the knitted fabric face. In particular, the bundling as many monofilaments as possible is advantageous from the viewpoints of the cushioning property and the spring property.
  • These yarns may have any thickness. However, from the aesthetic viewpoint of the napped surface, these yarns have the thickness preferably in a range from 120 to 200 denier and more preferably has the thickness of about 150 denier.
  • the tensile force applied to ground yarns in order to knit the ground yarns is preferably set as low as possible. Furthermore, it is preferred to feed yarns in an amount larger than the general yarn amount. Specifically, it is advantageous that the mass per unit area is 1000 g/m 2 or more and is preferably about 1250 g/m 2 . However, the weight of the surface (napped face) corresponding to two beams is about 300 g/m 2 and is more preferably about 150 g/m 2 .
  • the knitted three-dimensional knitted fabric is required to have a thickness equal to or higher than a certain value from the viewpoints of the cushioning property and elasticity.
  • a thickness is preferably about 3 to 10 mm and is more preferably about 5 to 8 mm.
US12/515,168 2006-11-17 2007-11-16 Sheet Material Abandoned US20100055381A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006-337606 2006-11-17
JP2006337606A JP4352413B2 (ja) 2006-11-17 2006-11-17 シート材
PCT/JP2007/072255 WO2008059947A1 (fr) 2006-11-17 2007-11-16 Matériau en feuille

Publications (1)

Publication Number Publication Date
US20100055381A1 true US20100055381A1 (en) 2010-03-04

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ID=39401749

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US12/515,168 Abandoned US20100055381A1 (en) 2006-11-17 2007-11-16 Sheet Material

Country Status (11)

Country Link
US (1) US20100055381A1 (zh)
EP (1) EP2105525A4 (zh)
JP (1) JP4352413B2 (zh)
KR (1) KR101116714B1 (zh)
CN (1) CN101535544B (zh)
AU (1) AU2007320383B2 (zh)
BR (1) BRPI0719087B1 (zh)
CA (1) CA2669525C (zh)
MX (1) MX2009005204A (zh)
WO (1) WO2008059947A1 (zh)
ZA (1) ZA200903404B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150017877A1 (en) * 2013-07-15 2015-01-15 Chantelle Bra Cup And Method for Its Manufacture
US20150020546A1 (en) * 2012-01-16 2015-01-22 E I Du Pont De Nemours And Company Warp knitted fabric comprising polytrimethylene terephthalate and method of making same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5963417B2 (ja) * 2011-10-21 2016-08-03 セーレン株式会社 起毛立体経編地の製造方法
DE102015212510A1 (de) * 2015-07-03 2017-01-05 Johnson Controls Gmbh Kopfstützenkörper und Kopfstütze
CN105926148A (zh) * 2016-04-25 2016-09-07 吴江市江顺经编纺织有限公司 一种经编双针床不脱毛面料的编织方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783277A (en) * 1997-04-17 1998-07-21 Malden Mills Industries, Inc. Three-dimensional knit spacer fabric for footwear and outerwear
US6196032B1 (en) * 1998-08-12 2001-03-06 Malden Mills Industries, Inc. Double face warp knit fabric with two-side effect
US20020016119A1 (en) * 2000-06-30 2002-02-07 Shigekazu Orita Electromagnetic wave shielding material
US6837078B1 (en) * 2004-04-13 2005-01-04 Malden Mills Industries, Inc. Knit fabrics with face-to-back differentiation
JP3113666U (ja) * 2005-06-14 2005-09-15 北陸エステアール協同組合 車両等のシート材

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GB2232555A (en) * 1989-05-26 1990-12-12 Philips Electronic Associated Digital cordless telephone systems
JPH03113666A (ja) * 1989-09-28 1991-05-15 Hitachi Ltd 計算機システムの運転制御方式
JPH03113666U (zh) * 1989-10-23 1991-11-20
KR960700369A (ko) 1993-10-27 1996-01-20 오노 고타로 이면식 경 편포의 편성 방법 및 그 편물 구조
DE4400239A1 (de) * 1994-01-07 1995-07-13 Mayer Textilmaschf Abstandsgewirk, Verfahren zu seiner Herstellung und Kettenwirkmaschine zur Durchführung des Verfahrens
US6644070B2 (en) * 2001-03-29 2003-11-11 Asahi Kasei Kabushiki Kaisha Three-dimensional fabric for seat
KR200378068Y1 (ko) * 2004-12-20 2005-03-14 정재균 더블 라셀 기모직물

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783277A (en) * 1997-04-17 1998-07-21 Malden Mills Industries, Inc. Three-dimensional knit spacer fabric for footwear and outerwear
US6196032B1 (en) * 1998-08-12 2001-03-06 Malden Mills Industries, Inc. Double face warp knit fabric with two-side effect
US6199410B1 (en) * 1998-08-12 2001-03-13 Malden Mills Industries, Inc. Double face warp knit fabric with two-side effect
US20020016119A1 (en) * 2000-06-30 2002-02-07 Shigekazu Orita Electromagnetic wave shielding material
US7238632B2 (en) * 2000-06-30 2007-07-03 Seiren Co., Ltd. Electromagnetic wave shielding material
US6837078B1 (en) * 2004-04-13 2005-01-04 Malden Mills Industries, Inc. Knit fabrics with face-to-back differentiation
JP3113666U (ja) * 2005-06-14 2005-09-15 北陸エステアール協同組合 車両等のシート材

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Title
D.J. Spencer, KNITTING TECHNOLOGY, A Comprehensive Handbook and Practical Guide, 2001, Woodhead Publishing Ltd., 3rd ed., pages 39-41. *
Manual translation of JP 3113666 U, August 2017. *
Translation of JP 3113666 U, 09/2005. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150020546A1 (en) * 2012-01-16 2015-01-22 E I Du Pont De Nemours And Company Warp knitted fabric comprising polytrimethylene terephthalate and method of making same
US9347157B2 (en) * 2012-01-16 2016-05-24 E I Du Pont De Nemours And Company Warp knitted fabric comprising polytrimethylene terephthalate and method of making same
US20150017877A1 (en) * 2013-07-15 2015-01-15 Chantelle Bra Cup And Method for Its Manufacture
US9259038B2 (en) * 2013-07-15 2016-02-16 Chantelle Bra cup and method for its manufacture

Also Published As

Publication number Publication date
BRPI0719087A2 (pt) 2013-12-03
BRPI0719087B1 (pt) 2017-12-19
EP2105525A1 (en) 2009-09-30
JP2008127730A (ja) 2008-06-05
WO2008059947A1 (fr) 2008-05-22
KR101116714B1 (ko) 2012-02-22
AU2007320383B2 (en) 2011-09-22
ZA200903404B (en) 2010-08-25
EP2105525A4 (en) 2015-08-12
MX2009005204A (es) 2009-05-27
AU2007320383A1 (en) 2008-05-22
CA2669525C (en) 2013-04-09
CN101535544B (zh) 2012-06-27
CN101535544A (zh) 2009-09-16
JP4352413B2 (ja) 2009-10-28
KR20090071669A (ko) 2009-07-01
CA2669525A1 (en) 2008-05-22

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AS Assignment

Owner name: HOKURIKU S.T.R COOPERATIVE,JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAMAGUCHI, TETSUO;KONTANI, NAOAKI;REEL/FRAME:022692/0636

Effective date: 20090427

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION