US20130243985A1 - Woven textile and protective sleeve for wire harness using the same - Google Patents

Woven textile and protective sleeve for wire harness using the same Download PDF

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Publication number
US20130243985A1
US20130243985A1 US13/988,364 US201113988364A US2013243985A1 US 20130243985 A1 US20130243985 A1 US 20130243985A1 US 201113988364 A US201113988364 A US 201113988364A US 2013243985 A1 US2013243985 A1 US 2013243985A1
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United States
Prior art keywords
yarn
woven textile
texture
fiber
melting point
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US13/988,364
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English (en)
Inventor
Takahiro Furuta
Hiroshi Tsuchikura
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Toray Industries Inc
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Toray Industries Inc
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Assigned to TORAY INDUSTRIES, INC. reassignment TORAY INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TSUCHIKURA, HIROSHI, FURUTA, TAKAHIRO
Publication of US20130243985A1 publication Critical patent/US20130243985A1/en
Abandoned legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/0043—Protective fabrics for elongated members, i.e. sleeves
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/567—Shapes or effects upon shrinkage
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/005—Tapes or ribbons not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/02—Tubular 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/30—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensation products not covered by indexing codes D10B2331/02 - D10B2331/14
    • D10B2331/301—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensation products not covered by indexing codes D10B2331/02 - D10B2331/14 polyarylene sulfides, e.g. polyphenylenesulfide
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
    • 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
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3065—Including strand which is of specific structural definition
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3472—Woven fabric including an additional woven fabric layer

Definitions

  • This disclosure relates to a woven textile and a protective sleeve for a wire harness using the same.
  • Protective sleeves for a wire harness are classified into two types: the open type having a slit in the length direction and the closed type having a complete tubular shape.
  • the open-type In the case of the closed type, the operation of attaching or detaching a lead wire must be performed from an opening at either end. Therefore, operating efficiency is low.
  • the open-type is preferably used.
  • the open-type requires tube formation using a metal mold or half wrapping using adhesive tape and, in addition, lead wires can be exposed after protection due to the slit opening.
  • JP 2007-297749 A a method of obtaining a tubular open-type protective sleeve by laminating two sheets. That method allows production of a protective sleeve for a wire harness that does not use tape or a ring.
  • JP '425 does not improve cost-effectiveness or operability sufficiently because the number of rings to attach increases when wires are long or a pathway has many curves.
  • JP '749 does not improve cost-effectiveness or operability sufficiently because, after providing two sheets, one sheet A is stretched and the other sheet B must be laminated in the stretched state less than or equal to the sheet A or unstretched state.
  • a tube is formed by heat-curing a flat woven textile in the tubular state or applying tension to a yarn in the process of weaving a woven textile.
  • a heat set technique is difficult to implement and requires a high processing cost.
  • the operability for protecting a long and thin member is very poor.
  • the woven textile is a two- or more ply flat woven textile in which a texture A comprising a yarn A and a texture B comprising a yarn B are interwoven,
  • the process of producing a tubular woven textile is a process of producing a tubular woven textile
  • the tubular woven textile is a tubular woven textile formed such that a flat two-ply woven textile in which a front surface texture and a back surface texture are interwoven is rolled up such that the front surface texture is located outside,
  • the protective sleeve for a wire harness uses the tubular woven textile obtained by the process of producing a tubular woven textile or uses the tubular woven textile.
  • the woven textile is spontaneously formed into a tube by utilizing the difference in shrinkage between yarns caused when heat is applied and, therefore, heat setting using a metal mold or half wrapping using adhesive tape is not required. Thus, the cost of production of a tubular woven textile can be reduced.
  • the woven textile into a tube, it is not necessary to use a metal mold, and the woven textile is formed into a tube only by simple heating immediately before being used, for example, in a factory where the tube is used.
  • the woven textile can be shipped as a flat woven textile before being formed into a tube, and can be efficiently transported.
  • the woven textile can be stored in a small space compared to a tube in the same amount because it can be stored in piles.
  • FIG. 1 is a weaving design of our two-ply woven textile.
  • FIG. 2 is a schematic view illustrating the arrangement of a warp yarn and a weft yarn in the woven textile of FIG. 1 seen from the longer direction of the weft yarn (the direction of arrow I).
  • FIG. 3 is a weaving design of our three-ply woven textile.
  • FIG. 4 is a schematic view illustrating the arrangement of a warp yarn and a weft yarn in the woven textile of FIG. 3 seen from the longer direction of the weft yarn (the direction of arrow I).
  • the woven textile is a two- or more ply flat woven textile in which a texture A comprising a yarn A and a texture B comprising a yarn B are interwoven.
  • the texture A and the texture B are interwoven such that the longer direction of the yarn A and the longer direction of the yarn B are in the same direction.
  • the yarn A and the yarn B are both a warp yarn of the woven textile or both a weft yarn of the woven textile.
  • shrinkage percentage of the yarn A (SA (%)) and shrinkage percentage of the yarn B (SB (%)) satisfy 10% ⁇ (SB ⁇ SA) ⁇ 60%.
  • SA (%) shrinkage percentage of the yarn A
  • SB (%) shrinkage percentage of the yarn B
  • the texture A and the texture B shrink in the longer direction of the yarn A and the yarn B, respectively, and because of such a difference in shrinkage percentage between the yarn A and the yarn B, the texture B comprising the yarn B shrink more than the texture A comprising the yarn A. Consequently, the woven textile bends such that the longer direction of the yarn A and the yarn B is the circumferential direction and the texture A is located outside the texture B.
  • the woven textile is formed into a tube in which one end and the opposite end of the woven textile overlap each other on the circumference.
  • a flexible tube made of the woven textile is provided.
  • the overlapping portion of the woven textile is not adhered. Thus, it can be separated to form a gap if a slight force is applied and the gap will close spontaneously if the force is released.
  • the overlapping portion is opened by hand, and wires are placed into the tube through the gap. If the hand is released, the tube returns to the original tube without a gap so that the wires will not be exposed outside the tube.
  • the tube formed from the woven textile can be suitably used as a protective sleeve for a wire harness.
  • the overlapping portion need not overlap with no gap being formed and may overlap with a gap through which the wires will not come out being formed.
  • the amount of overlap on the circumference of the woven textile needs to be appropriate.
  • the shrinkage percentage of the yarn A (SA (%)) and shrinkage percentage of the yarn B (SB (%)) satisfy 10% ⁇ (SB ⁇ SA) ⁇ 60%.
  • the difference in shrinkage percentage is less than 10%, even if heat is applied to the woven textile, the amount of overlap is too small, resulting in an electricity protective sleeve from which wires are easily exposed.
  • the difference in shrinkage percentage is not less than 60%, even if the heating conditions are mild, the amount of overlap is too large to easily open a gap for inserting wires, resulting in an electricity protective sleeve with poor operability.
  • the lower limit of the difference in shrinkage percentage is preferably 15% or more, and the upper limit is preferably 50% or less.
  • the shrinkage percentage of a yarn is a value measured according to JIS L 1013 8.18, Section (1) Hot-water shrinkage percentage B method (filament shrinkage percentage).
  • a yarn with an initial load being applied is marked at two points with a distance between points of 500 mm.
  • the initial load is unloaded, and the yarn is immersed in water at 90° C. for 30 minutes, after which the water is lightly wiped off with absorbent paper or a cloth, and the yarn is dried by wind.
  • the initial load is applied again, and the distance between the two points is measured.
  • the shrinkage percentage (%) is calculated from the following equation. For five randomly selected yarns, the shrinkage percentage is calculated, and the average of the five values is rounded to one decimal place. The average value obtained is the shrinkage percentage of the yarn:
  • Shrinkage percentage (%) (500 ⁇ Length between two points (mm) measured when an initial load is applied after treating with hot water)/500 ⁇ 100.
  • the woven textile may be a three- or more ply woven textile in which a texture other than the texture A and the texture B is interwoven as long as the woven textile is not prevented from bending when heat is applied.
  • a texture may be interwoven into any places outside the texture A, outside of the texture B, or between the texture A and the texture B.
  • a two-ply woven textile in which only the texture A and the texture B are interwoven is preferred.
  • any yarn that satisfies the shrinkage percentage mentioned above can be used and synthetic fibers are suitably used.
  • polyester is preferably used.
  • a textured yarn, a multifilament yarn, a monofilament yarn and the like are used.
  • a textured yarn such as a single-heater false-twisted polyester yarn is preferred in view of formability and low cost.
  • the yarn A is preferably made of continuous fibers with a single-yarn fiber diameter of 10 to 1000 ⁇ m.
  • the single-yarn fiber diameter is out of this range, the woven textile sometimes cannot be formed into a tube even if the relation of the difference in shrinkage percentage from the yarn B is satisfied.
  • the lower limit of the single-yarn fiber diameter of the yarn A is preferably 150 ⁇ m or more, and the upper limit is preferably 600 ⁇ m or less.
  • the shrinkage percentage of the yarn A is preferably 1 to 55%. When the shrinkage percentage is in the range of 1 to 55%, excellent formability and shape stability are provided.
  • the lower limit of the shrinkage percentage is more preferably 2% or more, and the upper limit is more preferably 35% or less.
  • the total fineness of the yarn A is preferably 60 to 600 dtex. When the total fineness is in this range, shape stability and protectability improve.
  • the method of obtaining the yarn A is not particularly limited and, for example, in the case of polyester, the yarn A can be obtained by setting the take-up speed in spinning at about 2000 to 7000 m/min.
  • the yarn B preferably has a single-yarn fiber diameter of 3 to 500 ⁇ m.
  • the single-yarn fiber diameter is out of this range, the woven textile surface is distorted, which can cause inefficient wiring operation and the like.
  • the shrinkage percentage of the yarn B is preferably 10 to 65%. When it is in this range, a woven textile having good formability and, further, good shape stability can be obtained.
  • the method of obtaining the yarn B is not particularly limited and, for example, in the case of polyester, the yarn B can be obtained by employing low-speed taking up at a take-up speed in spinning of 1000 to 2000 m/min or using an unstretched yarn or a thick and thin yarn.
  • a texture like a nap-raised velvet be interwoven into the outermost surface. If a nap-raised texture is interwoven into the outermost surface, scratch-resisting property and heat-resisting property can be improved when the woven textile is used for a protective sleeve for a wire harness.
  • the nap-raised portion may be cut or uncut pile.
  • the nap-raised portion may be formed either by a warp yarn or by a weft yarn.
  • the nap-raised texture may be provided on the surface that is located outside the tube (outside of the texture A) or the surface that is located inside the tube (outside of the texture B) when the woven textile is formed into a tube.
  • the surface that is located outside the tube heat generation caused by contact between protective sleeves can be reduced.
  • the function of protecting lead wires placed in a tube improves.
  • the melting point of the fiber with the lowest melting point (hereinafter referred to as the lowest melting point fiber) and the fiber with the second lowest melting point among the fibers used for a warp yarn or a weft yarn is taken as TC (° C.) and TD (° C.), respectively, it is preferred that 40° C. ⁇ (TD ⁇ TC) ⁇ 150° C. be satisfied.
  • the lowest melting point fiber that melts during heat set is fused with surrounding fibers, and effects of prevention of fraying in cutting of the woven textile, further, improvement of shape stability and the like can be exerted.
  • the lowest melting point fiber may be arranged either in a warp yarn or a weft yarn.
  • Examples of the fiber with a low melting point include vinylidene, polyvinyl chloride, nylon, polyethylene, polypropylene, polyurethane, benzoate and the like, from among which such fibers that satisfy the requirements described above can be selected as appropriate and used.
  • the woven textile contain a polyphenylene sulfide fiber (hereinafter referred to as a PPS fiber) and a meta-aramid fiber in addition to the yarn A and the yarn B to provide functions such as heat-resisting property and flame resistance.
  • a PPS fiber polyphenylene sulfide fiber
  • meta-aramid fiber in addition to the yarn A and the yarn B to provide functions such as heat-resisting property and flame resistance.
  • the tube is formed such that one end and the opposite end of the woven textile overlap on the circumference of the tube and the length of the overlapping portion in the circumferential direction is 2% or more of the circumferential length.
  • the overlapping portion accounts for 2% or more, after lead wires are inserted into the tubular woven textile, the lead wires will be protected sufficiently by the woven textile due to the overlap in the circumferential direction. Further, the inserted lead wires will not protrude from the woven textile.
  • the overlapping portion preferably accounts for not more than 13%. If the overlapping portion accounts for more than 13%, lead wires cannot be readily inserted and the operability can be poor.
  • Examples of the method of forming the woven textile into a tube by heat treatment include a method of treatment under such heat treatment conditions that, taking the direction perpendicular to the longer direction of the yarn A and the yarn B as the travel direction, four heat treatment devices are arranged in series in the travel direction; hot air at 90 to 200° C. is flown into the heat treatment devices; and the woven textile passes through the heat treatment devices in 30 to 190 seconds.
  • the woven textile may be protected by heating and shrinking the woven textile in which lead wires are arranged to be formed into a tube.
  • the tubular woven textile formed may be a tubular woven textile wherein the length of the yarn A (LA) and the length of the yarn B (LB) in the tubular state satisfy 10% ⁇ (LA ⁇ LB)/LA ⁇ 100 ⁇ 60%.
  • a tubular woven textile formed such that a flat two-ply woven textile in which a front surface texture and a back surface texture are interwoven is rolled up such that the front surface texture is located outside, wherein one end and the opposite end of the two-ply woven textile separably overlap each other on the circumference of the tube and, in the tubular state, the circumferential length of the yarn arranged in the front surface texture (LE) and the circumferential length of the yarn arranged in the back surface texture (LF) satisfy 10% ⁇ (LA ⁇ LB)/LA ⁇ 100 ⁇ 60%.
  • the lower limit of “ ⁇ (LA ⁇ LB)/LA ⁇ 100” is preferably 20% or more, and the upper limit is preferably 60% or less.
  • the circumferential length of the yarn arranged in the front surface texture is a value determined by randomly selecting five circumferential full-width yarns arranged in the front surface texture and rounding the average value thereof to one decimal place.
  • the circumferential length of the yarn arranged in the back surface texture (LB) is a value determined in the same manner.
  • the woven textile can be readily formed into a tube, and the tubular woven textile formed has excellent softness flexibility and operability. Further, the woven textile can be provided with shape stability by arranging the lowest melting point fiber that satisfies particular temperature conditions. Furthermore, the woven textile can be readily provided with functions such as heat-resisting property and flame resistance by arranging a PPS fiber or a meta-aramid fiber. Therefore, the woven textile exerts an extremely excellent effect when used particularly as a protective sleeve for a wire harness.
  • the thickness of the woven textile may be determined depending on the scratch-resisting protection performance required when used as a protective sleeve for a wire harness, and the higher the protection performance required is, the thicker the woven textile is.
  • the woven textile preferably has a gray fabric thickness of 0.5 to 2.0 mm.
  • a needle loom was used as a loom to perform weaving.
  • a warp yarn single-heater false-twist textured polyester yarns of 330 dtex and 167 dtex was used.
  • a weft yarn a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 15.3% and a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m were used.
  • the weft yarn obtained by drawing together three polyester filaments is the yarn B (hereinafter referred to as the weft yarn B), and the weft yarn of a polyester monofilament is the yarn A (the weft yarn A).
  • FIGS. 1 and 2 The construction of the two-ply woven textile woven is shown in FIGS. 1 and 2 .
  • a and B each represents a weft yarn, and x, y, and z each represents a warp yarn.
  • A is the weft yarn A; B is the weft yarn B; x and y are a single-heater textured polyester yarn of 330 dtex; and z is a single-heater textured polyester yarn of 167 dtex.
  • A′ is the texture A comprising the weft yarn A, and B′ is the texture B comprising the weft yarn B.
  • FIG. 1 is a weaving design that represents on one plane the way the two-ply woven textile is woven.
  • FIG. 2 is a schematic view of the woven textile represented by the weaving design of FIG. 1 seen from the longer direction of the weft yarn (the direction of arrow I), and (1), (2), and (3) each shows how the warp yarns x, y, and z are beaten up into the weft yarns A and B.
  • FIG. 1 The leftmost “BABABABA” indicates that the texture comprising the weft yarn B is located at the front of the page and the texture comprising the weft yarn A is located at the back of the page.
  • the uppermost “xxxxyzy . . . ” indicates that the warp yarns x, y, and z are beaten up in the order mentioned.
  • a white cell indicates that, at that part, the warp yarn is located at the back of the page compared to the weft yarn
  • a black cell indicates that, at that part, the warp yarn is located at the front of the page compared to the weft yarn.
  • (weft yarn B) white cell, (weft yarn A) black cell indicates that a warp yarn is located at the back of the page compared to the weft yarn B and the front of the page compared to the weft yarn A, that is, between the weft yarn B and the weft yarn A.
  • “(Weft yarn B) white cell, (weft yarn A) white cell” indicates that a warp yarn is located at the back of the page compared to the weft yarn B and the back of the page compared to the weft yarn A, that is, at the back of the woven textile on the page.
  • FIG. 1 is a plan view illustrating each pattern of beating up of a warp yarn shown in FIG. 2 .
  • a two-ply woven textile was woven in the same manner as in Example 1 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 20.5% and as the weft yarn A a polyester monofilament with a shrinkage percentage of 6.7% and a single-yarn fiber diameter of 250 ⁇ m.
  • a two-ply woven textile was woven in the same manner as in Example 1 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 49.3% and as the weft yarn A a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m.
  • a two-ply woven textile was woven in the same manner as in Example 1 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 60.8% and as the weft yarn A a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m.
  • a two-ply woven textile was woven in the same manner as in Example 3 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 49.3% (melting point: 255° C.) and one low melting point fiber of 100 dtex with a melting point of 110° C. “Elder” (available from TORAY INDUSTRIES, INC.).
  • a tube that prevents fraying of yarns in inserting wires or cutting the woven textile and has further improved shape stability could be provided.
  • a single-heater false-twist textured polyester yarn of 330 dtex was used.
  • a weft yarn a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 49.3% and a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m were used.
  • the weft yarn obtained by drawing together three polyester filaments is the yarn B (hereinafter referred to as the weft yarn B), and the weft yarn of a polyester monofilament is the yarn A (the weft yarn A).
  • a texture using as a warp yarn a single-heater false-twist textured polyester yarn of 330 dtex, as a pile a polyester filament of 560 dtex, and as a weft yarn a single-heater false-twist textured polyester yarn of 330 dtex was produced, and the polyester filament arranged as a pile was cut to obtain a nap-raised portion.
  • FIGS. 3 and 4 The construction of the three-ply woven textile woven is shown in FIGS. 3 and 4 .
  • A, B, and C each represents a weft yarn, and x, y, and w each represents a warp yarn.
  • A is the weft yarn A; B is the weft yarn B; C is the single-heater textured polyester yarn of 330 dtex arranged as a weft yarn to produce a pile fabric; x, y, and z are all a single-heater textured polyester yarn of 330 dtex; and z is the polyester filament of 560 dtex arranged as a pile.
  • FIG. 3 is a weaving design that represents on one plane the way the two-ply woven textile is woven.
  • FIG. 4 is a schematic view of the woven textile represented by the weaving design of FIG. 3 seen from the longer direction of the weft yarn (the direction of arrow I), and (1), (2), (3), and (4) each shows how the warp yarns x, y, z, and w are beaten up into the weft yarns A, B, and C.
  • FIG. 3 is the same as how to appreciate FIG. 1 , and thus detailed descriptions are omitted.
  • the texture comprising the weft yarn C is located at the frontmost of the page; the texture comprising the weft yarn A is located at the backmost of the page; the texture comprising the weft yarn B is located between these two textures; and every three-cell combination is looked from top to bottom in the warp yarn direction.
  • a two-ply woven textile was woven in the same manner as in Example 3 except using as a warp yarn a polyphenylene sulfide fiber of 330 dtex and 167 dtex.
  • x and y in FIGS. 1 and 2 are polyphenylene sulfide fibers of 330 dtex, and z is a polyphenylene sulfide fiber of 167 dtex.
  • a two-ply woven textile was woven in the same manner as in Example 1 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 11.3% and as the weft yarn A a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m.
  • a two-ply woven textile was woven in the same manner as in Example 1 except using as the weft yarn B a yarn obtained by drawing together three polyester filaments of 90 dtex with a shrinkage percentage of 66.1% and as the weft yarn B a polyester monofilament with a shrinkage percentage of 2.0% and a single-yarn fiber diameter of 250 ⁇ m.
  • Example 1 15.3 2.0 13.3 Two-ply shown in FIGS. 1 and 2 2.4 12.3
  • Example 2 20.5 6.7 13.8 Two-ply shown in FIGS. 1 and 2 2.8 14.3
  • Example 3 49.3 2.0 47.3 Two-ply shown in FIGS. 1 and 2 8.5 32.6
  • Example 4 60.8 2.0 58.8 Two-ply shown in FIGS. 1 and 2 11.7 53.3
  • Example 5 49.3 2.0 47.3 Two-ply shown in FIGS.
  • Example 6 49.3 2.0 47.3 Three-ply shown in FIGS. 3 and 4 8.8 (32.6)
  • Example 7 49.3 2.0 47.3 Two-ply shown in FIGS. 1 and 2 8.8 32.6
  • Comparative Example 1 11.3 2.0 9.3 Two-ply shown in FIGS. 1 and 2 1.3 9.2 Comparative Example 2 66.1 2.0 64.1 Two-ply shown in FIGS. 1 and 2 14.7 62.2 Comparative Example 3 49.3 2.0 47.3 Plain fabric Not overlapped — Comparative Example 4 49.3 2.0 47.3 Twill fabric Not overlapped —
  • Percentage of yarn length difference is a value of ⁇ (Length of weft yarn A ⁇ Length of weft yarn B)/Length of weft yarn A ⁇ 100 for both of the two-ply woven textiles and the three-ply woven textile.
  • the woven textile in Example 6 is a three-ply, and thus the “percentage of yarn length difference” is described as a reference value because it is not a percentage of yarn length difference between the weft yarn of a front surface texture and the weft yarn of a back surface texture.
  • the woven textile in Example 1 was formed into a tube having an overlap in the circumferential direction. However, it had low bendability because of somewhat small difference in shrinkage percentage between the weft yarn A and the weft yarn B. Therefore, the woven textile sometimes did not overlap successfully during the operation of inserting lead wires, and the shape stability was somewhat insufficient. Accordingly, it was necessary to carry out the operation while adjusting the woven textile to overlap the way it was, and the operability was also somewhat insufficient.
  • the woven textiles in Examples 2 to 7 were all a tube having a sufficient overlap in the circumferential direction and preferred as a protective sleeve for a wire harness. In addition, it was easy to open the overlapping portion to form a gap, and an operation of inserting lead wires could be easily performed. Further, because the tube overlaps the way it was when hands were released, the shape stability was excellent and the wire protectability after the operation was sufficient.
  • the woven textile in Comparative Example 1 provided an irregular tube after heat treatment.
  • the overlap in the circumferential direction disappeared after the operation of inserting lead wires, and there was a problem in protectability for lead wires. Therefore, the inserted lead wires protruded externally, and the operability was poor.
  • the woven textile in Comparative Example 2 was a tube having a sufficient overlap in the circumferential direction, but because of too large overlap in the circumferential direction, it was difficult to open the overlapping portion to form a gap. Thus, it was difficult to carry out the operation of inserting lead wires. In addition, because of the large overlapping portion, it was a tube lacking in softness.
  • the woven textiles in Comparative Example 3 and 4 were not formed into a tube and could not protect lead wires.
US13/988,364 2010-11-29 2011-11-22 Woven textile and protective sleeve for wire harness using the same Abandoned US20130243985A1 (en)

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JPWO2012073757A1 (ja) 2014-05-19
CN103210128A (zh) 2013-07-17

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