EP3385419B1 - Woven fabric - Google Patents

Woven fabric Download PDF

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Publication number
EP3385419B1
EP3385419B1 EP16870822.0A EP16870822A EP3385419B1 EP 3385419 B1 EP3385419 B1 EP 3385419B1 EP 16870822 A EP16870822 A EP 16870822A EP 3385419 B1 EP3385419 B1 EP 3385419B1
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EP
European Patent Office
Prior art keywords
multifilament
woven fabric
monofilament
warp
fiber
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EP16870822.0A
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German (de)
English (en)
French (fr)
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EP3385419A4 (en
EP3385419A1 (en
Inventor
Satoshi Naruko
Hiroshi Tsuchikura
Ryosuke Yamao
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Toray Industries Inc
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Toray Industries Inc
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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
    • D03D15/40—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 structure of the yarns or threads
    • D03D15/47—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 structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • 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
    • D03D1/0041—Cut or abrasion resistant
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • 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
    • D03D15/20—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 material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—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 material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/04—Sack- or bag-like 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • the present invention relates to a woven fabric. More particularly, the present invention relates to a woven fabric that can be preferably used in shoes, work clothes, bags and the like, and that is excellent in abrasion resistance and touch feeling.
  • Patent Document 1 discloses a mesh body including a polypropylene multifilament as, for example, a warp, and a core-sheath composite polypropylene monofilament as a weft.
  • the mesh body is obtained by melting the core-sheath composite polypropylene monofilament with the sheath melting temperature set at a temperature higher than the core melting temperature, weaving the warp and weft, and heating the resultant to melt the polypropylene in the sheath section for fixing the warp and the weft together.
  • Patent Document 2 discloses an abrasion-resistant woven fabric for a skin material that has a soft texture, including a polytrimethylene terephthalate multifilament as a weft and a polytrimethylene terephthalate monofilament as a warp (Example 6 of Patent Document 3).
  • Patent Document 3 proposes, as a fabric improved in abrasion resistance, a fabric including a core-sheath composite fiber.
  • the core-sheath composite fiber contains a polymer forming a core section and a polymer in a sheath section, which has a melting point lower than that of the polymer in the core section, and the sheath section is thermally fused to fix the fiber filaments together, so that the fabric is suppressed in the occurrence of yarn slippage.
  • Patent Document 4 proposes a stretch fabric, in which one yarn of warp and weft yarns is obtained from an inelastic yarn having a crimp ratio of 5 to 30% and at least a portion of the other is obtained from an elastic yarn having a crimp ratio of 0 to 5%.
  • Example 1 concerns a woven fabric having a warp density of 25 pieces/2.54cm and a weft density of 47 pieces/2.54cm obtained from a monofilament weft yarn of 700 dtex and a loosely twisted warp yarn of 200 T/m having a total fineness of 1670 dtex-288 filament.
  • Patent Document 1 Since the woven fabric disclosed in Patent Document 1 is intended for construction work, Patent Document 1 does not consider the touch feeling of the woven fabric, and does not disclose any specific structure of a woven fabric good in touch feeling.
  • Patent Document 2 describes, about the woven fabric for a skin material disclosed therein, physical properties of the polytrimethylene terephthalate fiber and the elastic recovery of the woven fabric, the document is silent on any simple evaluation index in the actual weaving. It is impossible to obtain a woven fabric excellent in abrasion resistance and soft texture by carrying out the disclosure of Patent Document 2 as it is.
  • An object of the present invention is to solve the above-mentioned problems of the conventional techniques, and to provide a woven fabric that is excellent in abrasion resistance against repeated sliding, good in touch feeling, and suitable for a fabric product.
  • a first invention that is made in order to solve the above-mentioned problems is a woven fabric including a warp and a weft, at least one of the warp and the weft being at least partially a fiber (M) that is a monofilament 1, a fiber (N) crossing the fiber (M) being at least partially a multifilament 2, the woven fabric satisfying either one of the following conditions (1) or (2) (the first invention):
  • the multifilament 2 has a cover factor of 800 or more and 1200 or less (a second invention).
  • the multifilament 2 has a twist coefficient of 0 or more and 10000 or less (a third invention).
  • the monofilament 1 has a flexural rigidity of 1 cN or more and 6 cN or less (a fourth invention).
  • the monofilament 1 is a core-sheath composite yarn in which a sheath component has a melting point that is at least 10°C lower than that of a core component (a fifth invention).
  • the woven fabric according to any one of the above-mentioned inventions shows, in the abrasion test according to JIS L1096 (2010) 8.19.3, method C, a weight reduction after 4000 times less than 0.5 g, and no hole (a sixth invention).
  • the woven fabric according to any one of the above-mentioned inventions has a mean friction coefficient MIU as a KES surface friction property value of 0.10 to 0.42, and a deviation of mean friction coefficient MMD of 0.01 to 0.07 (a seventh invention).
  • the first invention it is possible to achieve a state in which the monofilament having an advantage of ensuring the abrasion resistance and the multifilament having an advantage of ensuring the touch feeling are suitably arranged, and a woven fabric excellent in abrasion resistance and touch feeling is provided. Further, the monofilament and the multifilament of the present invention are fused together to satisfy the above-mentioned condition (1), or are not fused together to satisfy the above-mentioned condition (2), so that the yarn slippage of the woven fabric is effectively suppressed, and the woven fabric is further improved in abrasion resistance. It is also possible to provide a woven fabric in which proper arrangement of the warp and weft is hardly disturbed, and which maintains a good touch feeling.
  • a cover factor of the multifilament within the specific range gives an appropriate binding force between the warp and the weft, and maintains the crimp shape of the multifilament well.
  • a woven fabric that is excellent in lightweight properties and durability, and is also good in touch feeling and air permeability is provided.
  • a twist coefficient of the multifilament within the specific range easily gives a flat sectional shape of the multifilament, and ensures a large contact area with the monofilament.
  • a large number of single yarns are in contact with the monofilament. Since the force applied to one single yarn is distributed, the single yarn breakage hardly occurs, and a woven fabric more excellent in abrasion resistance and good in touch feeling is provided.
  • a flexural rigidity of the monofilament within the specific range can suppress the occurrence of yarn slippage due to a low flexural rigidity of the monofilament. At the same time, it is possible to prevent yarn slippage due to insufficient yarn binding force, which is caused by the deterioration of crimp shape maintaining performance due to an excessively high flexural rigidity, and to prevent the deterioration of abrasion resistance due to a low monofilament concealment ratio h/b.
  • the fifth invention it is possible to easily provide a woven fabric excellent in abrasion resistance and touch feeling without the use of a fusing agent for fusing the warp and the weft together.
  • the sixth invention it is possible to provide a woven fabric excellent in durability against friction in fabric products such as shoes, work clothes, and bags.
  • the seventh invention it is possible to provide a woven fabric having a smooth surface and good in touch feeling in fabric products such as shoes, work clothes, and bags.
  • the woven fabric of the present invention is excellent in abrasion resistance and good in touch feeling
  • the woven fabric can be suitably used alone in fabric products to be worn, such as shoes, work clothes, and bags, and personal fabric products.
  • the application of the woven fabric is not limited to the above, and the woven fabric can be used in various fabric products for which abrasion resistance and soft tactile sensation are required, such as a skin material for a vehicle seat.
  • the woven fabric of the present invention is a woven fabric including a warp and a weft, at least one of the warp and the weft being at least partially a fiber (M) that is a monofilament 1, a fiber (N) crossing the fiber (M) being at least partially a multifilament 2, the woven fabric satisfying either one of the following conditions (1) or (2):
  • Fig. 1 is a schematic cross-sectional view of a woven fabric that gives an outline of measurement sites for obtaining a multifilament coverage ratio and a monofilament concealment ratio.
  • Fig. 1 shows a cut surface of the woven fabric that is obtained by cutting a multifilament 2, which crosses a fiber including a monofilament 1 included in a warp or a weft of the woven fabric, in a direction parallel to the longitudinal direction of the fiber including the monofilament 1.
  • Fig. 2 is a schematic cross-sectional view for illustrating the definitions of the length a of the multifilament 2 in a cross section thereof in a direction of woven fabric surface, and the length b of the multifilament 2 in a cross section thereof in a direction of woven fabric thickness, in the case where the woven fabric has a plain weave structure.
  • the woven fabric is cut in the same direction as in Fig. 1 .
  • Fig. 3 is a schematic cross-sectional view for illustrating the definitions of the length a of the multifilament 2 in a cross section thereof in a direction of woven fabric surface, and the length b of the multifilament 2 in a cross section thereof in a direction of woven fabric thickness, in the case where the woven fabric has a 2/2 twill woven fabric structure.
  • the woven fabric is cut in the same direction as in Fig. 1 although the weave structure is different.
  • Fig. 4 is a schematic cross-sectional view for illustrating the definitions of the center-to-center distance L between adjacent filaments of the multifilament, and the crimp height h of the monofilament 1, in the case where the woven fabric has a plain weave structure.
  • the woven fabric is cut in the same direction as in Fig. 1 .
  • Fig. 5 is a schematic cross-sectional view for illustrating the definitions of the center-to-center distance L between adjacent filaments of the multifilament, and the crimp height h of the monofilament, in the case where the woven fabric has a 2/2 twill woven fabric structure.
  • the woven fabric is cut in the same direction as in Fig. 3 .
  • a rectangle is simulated, which surrounds a cross section of one filament of the multifilament 2, two parallel sides of which are in contact with the cross section of the filament of the multifilament 2, and the other two parallel sides of which lie in the thickness direction of the multifilament 2 and a direction perpendicular thereto (that is, the direction of the woven fabric surface) .
  • the length of the side along the direction of the woven fabric surface is defined as the length a of the multifilament 2 in a cross section thereof in the direction of the woven fabric surface, and the length of the side along the direction perpendicular to the direction of the woven fabric surface is defined as the length b of the multifilament 2 in a cross section thereof in the direction of woven fabric thickness.
  • a distance between two adjacent crimp apexes C1 and C2 is defined as 2*L, and a length of half of 2*L is defined as the center-to-center distance L between adjacent filaments of the multifilament.
  • a rectangle is formed with an upper side that is the line of the distance 2L between the adjacent crimp apexes C1 and C2 of one filament of the monofilament, and a line that is parallel to the upper side and is in contact with the bottom B of a multifilament (a point at which the multifilament is in contact with the monofilament in the direction of the woven fabric thickness).
  • the height of the rectangle (the length of the side of the rectangle close to the thickness direction) is defined as the crimp height h of the monofilament.
  • the woven fabric of the present invention includes a warp and a weft, at least one of the warp and the weft is at least partially a fiber (M) including a monofilament 1, and a fiber (N) crossing the fiber (M) at least partially includes a multifilament 2.
  • a fiber of either one of the warp and the weft be substantially a monofilament, and a fiber crossing the above-mentioned fiber be substantially a multifilament.
  • substantially means that a small amount of other fibers may be used in combination for design and other reasons. For example, up to 20% by mass, or up to 10% by mass of other fibers may be used in combination.
  • the fiber (M) include 80% by mass or more, more preferably 90% by mass or more of the monofilament 1. Further, it is preferable that the fiber (N) include 80% by mass or more, more preferably 90% by mass or more of the multifilament 2.
  • a multifilament is a bundle made of a plurality of fiber filaments. Since a multifilament has a single yarn diameter that is smaller than the total fineness, a multifilament exposed to the woven fabric surface can give a soft tactile sensation when being brought into contact with the skin. The single yarn of the multifilament, however, is easily broken due to abrasion. On the other hand, a monofilament is made of a single fiber filament, has a large single yarn diameter, and is hardly deformed in the fiber diameter even when crushed. Therefore, a monofilament exposed to the woven fabric surface tends to give a hard and rough texture of the surface when touched, but is hardly broken due to abrasion.
  • the present invention provides a woven fabric having both abrasion resistance against repeated friction and a soft touch feeling by the use of fibers having these contradictory properties, adoption of the parameters of the monofilament concealment ratio and the multifilament coverage ratio, and optimization of both the parameters.
  • the monofilament concealment ratio h/b is 0.5 or more and 1.0 or less.
  • the multifilament coverage ratio a/L represents the ratio of exposure between the multifilament and the monofilament on the woven fabric surface. Since a monofilament has a large single yarn diameter, and is hardly deformed in the fiber diameter when being brought into contact with the skin, a monofilament tends to give a hard and rough texture of the surface when touched. When a/L is within the above-mentioned range, the surface of the woven fabric is covered with the multifilament 2 having a small single yarn diameter and a soft tactile sensation, the area of the exposed monofilament 1 is reduced, and a soft touch feeling can be obtained.
  • a/L is less than 1.0, the monofilament 1 contacts the skin too strongly, so that the woven fabric tends to be poor in touch feeling.
  • a/L is more than 1.5, the abraded surface cannot be supported by the crimp-shaped apex portions of the monofilament 1, and many single yarns of the multifilament 2 are abraded, so that the woven fabric tends to be poor in abrasion resistance.
  • a/L is preferably from 1.2 to 1.4.
  • the monofilament concealment ratio h/b represents the ratio of exposure height between the multifilament 2 and the monofilament 1 in the direction of woven fabric thickness. Since the multifilament 2 has a small single yarn diameter and is easily broken due to abrasion, if b is too much larger than h, the woven fabric tends to be poor in abrasion resistance. When h/b is within the above-mentioned range, the abraded surface is supported by the crimp-shaped apex portions of the tough monofilament 1, the multifilament 2 is concealed in the valleys of the monofilament 1, and the multifilament 2 is protected from the abrasion. As a result, the woven fabric is excellent in abrasion resistance.
  • h/b is within the range of 0.5 to 1.0. h/b is preferably from 0.7 to 0.9.
  • the multifilament coverage ratio a/L and the monofilament concealment ratio h/b can be adjusted within the specific ranges by adjusting the degree of crimping through the adjustment and weaving of the filaments and thermal processing conditions after the weaving.
  • the material, intrinsic viscosity, fineness, stretch ratio, stretching temperature, relaxation ratio, relaxation temperature, cross-sectional shape, weaving density, and flexural rigidity of the monofilament, and the material, twist coefficient, fineness, weaving density, and flexural rigidity of the multifilament are adjusted.
  • the warp tension and weft tension are adjusted.
  • the longitudinal shrinkage ratio and the transverse shrinkage ratio are adjusted.
  • the monofilament concealment ratio h/b is adjusted to 0.7 or more and 1.0 or less to avoid too small a concealment ratio.
  • the monofilament concealment ratio is preferably from 0.8 to 0.9.
  • the warp or the weft including the multifilament preferably has a cover factor of 800 or more and 1200 or less, more preferably 1000 or more and 1200 or less.
  • the cover factor of the multifilament is small, the binding force between the warp and the weft is insufficient, yarn slippage occurs during the abrasion, and desired durability is hardly obtained.
  • the cover factor of the multifilament is too large, the crimp shape of the monofilament tends to be flat, and as a result, desired durability is hardly obtained.
  • the material of the multifilament is not particularly limited, and polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, polyamides, polypropylene, polyethylene, polyphenylene sulfide, acrylic and the like can be suitably used as a base polymer.
  • polyethylene terephthalate (PET) can be suitably used as a base polymer from the viewpoint of strength.
  • PET polyethylene terephthalate
  • the base polymer can be used after being modified, for example, in the form of a copolymer with other components, or a composition containing other components.
  • a cation-dyeable polyester capable of being dyed with a cationic dye, which is obtained by introducing a sulfonic acid group into PET or the like is suitable since it gives a multifilament excellent in strength and coloring properties.
  • a suitable commercial product of such a cation-dyeable polyester yarn is, for example, LOCII manufactured by TORAY INDUSTRIES, INC.
  • the multifilament used in the present invention may include a twisted yarn, a false twisted yarn, a Taslan textured yarn, or an air textured yarn as long as the object of the present invention is not impaired.
  • care must be taken because the multifilament may be poor in abrasion resistance due to too large a length b of the multifilament in a cross section thereof in the direction of woven fabric thickness.
  • additives such as a flame retardant, an antistatic agent, a weathering agent, a pigment, and a matting agent may be mixed as other materials.
  • a pre-dyed yarn that has been dyed in advance may also be used as the multifilament.
  • the single yarn fineness of the multifilament is desirably 1 dtex or more and 10 dtex or less, more desirably 2 dtex or more and 6 dtex or less.
  • the single yarn fineness of the multifilament is 1 dtex or more, the required flexural rigidity is easily ensured, and the crimp shape of one of the yarns is easily formed.
  • the single yarn fineness of the multifilament is 10 dtex or less, the multifilament hardly has a stiff touch feeling, and a soft texture is easily obtained.
  • the total fineness of the multifilament is desirably 100 dtex or more and 2000 dtex or less, more desirably 150 dtex or more and 1700 dtex or less, still more desirably 300 dtex or more and 1000 dtex or less.
  • the total fineness of the multifilament is 100 dtex or more, the required flexural rigidity is easily ensured.
  • the total fineness of the multifilament is 2000 dtex or less, handling in woven fabric production is easy.
  • a fiber yarn having a multifilament strength of 3.0 cN/dtex or more is preferably used from the viewpoint of the strength of the woven fabric.
  • the condition of strength is preferably a high strength, and a fiber yarn having a strength within the range of 5.0 cN/dtex or more and 15.0 cN/dtex or less is practically more preferable.
  • the multifilament preferably has a twist coefficient of 0 or more and 10000 or less and is in a weakly twisted state, more preferably has a twist coefficient of 0 or more and 8500 or less.
  • a twist coefficient of the multifilament within the above-mentioned range gives a multifilament having a flat cross-sectional shape.
  • the multifilament has a large contact area with the monofilament crossing the multifilament, and a large number of single yarns are in contact with the monofilament.
  • the force applied to the single yarns of the multifilament is distributed, so that single yarn breakage hardly occurs and the multifilament tends to be improved in abrasion resistance.
  • the multifilament coverage ratio a/L is large, and the woven fabric is good in touch feeling.
  • the twist coefficient of the multifilament is more than 10000, the range of yarns that can come into contact with the monofilament is narrow, and the number of single yarns that do not contact the monofilament is large, so that yarn slippage easily occurs and the multifilament tends to be poor in abrasion resistance.
  • a woven fabric shows a weight reduction less than 0.5 g and no hole in the abrasion test, it is preferable because the woven fabric has desired durability, and a woven fabric with long life can be provided to users.
  • the weight reduction is more preferably less than 0.4 g. If the weight reduction exceeds 0.5 g or a hole is generated in the abrasion test, the targeted durability cannot be obtained.
  • the abrasion test herein is carried out according to JIS L1096 (2010) 8.19.3, method C (JIS Handbook 2013) by 4000 times of abrasion with a Taber abrasion tester under conditions of a load of 250 g, an abrasive wheel H-18, and a disc diameter of 100 mm.
  • the mean friction coefficient MIU as a KES surface friction property value represents the slipperiness of the sample surface. The larger the value is, the less slippery the surface is.
  • the deviation of friction coefficient (MMD) represents the roughness and irregular texture of the sample surface. The larger the value is, the rougher the surface is.
  • the woven fabric have a mean friction coefficient MIU as a KES surface friction property value of 0.10 to 0.42, and a deviation of mean friction coefficient MMD of 0.01 to 0.07. More preferably, the woven fabric has a mean friction coefficient MIU of 0.20 to 0.40, and a deviation of mean friction coefficient MMD of 0.02 to 0.065. Still more preferably, the woven fabric has a mean friction coefficient MIU of 0.25 to 0.38, and a deviation of mean friction coefficient MMD of 0.025 to 0.060.
  • the monofilament 1 preferably has a flexural rigidity of 1 cN or more and 6 cN or less.
  • the flexural rigidity of the monofilament 1 is 1 cN or more, the monofilament plays a role of a framework to prevent the occurrence of yarn slippage during the rubbing, and the monofilament is good in abrasion resistance.
  • the flexural rigidity is 6 cN or less, the monofilament is not too rigid and easily forms a crimp shape, so that a sufficient binding force of the yarn is obtained to prevent the occurrence of yarn slippage during the rubbing, or a high monofilament concealment ratio b/h gives good abrasion resistance.
  • the material of the monofilament is not particularly limited, and polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polypropylene terephthalate, polyolefins such as polyamides, polypropylene, and polyethylene, polyphenylene sulfide, polyester elastomers, polysulfide elastomers, and polyurethane elastomers can be suitably used as a base polymer.
  • polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polypropylene terephthalate
  • polyolefins such as polyamides, polypropylene, and polyethylene
  • polyphenylene sulfide polyester elastomers
  • polysulfide elastomers polysulfide elastomers
  • polyurethane elastomers can be suitably used as a base polymer.
  • an elastic yarn made from an elastomer such as a polyester elastomer, a polysulfide elastomer, or a polyurethane elastomer as a base polymer can be more suitably used, and an elastic yarn made from a polyester elastomer as a base polymer can be still more suitably used.
  • the polyester elastomer one having a hard segment and a soft segment in the molecular structure is preferable.
  • the hard segment preferably includes, as a main constituent unit, an aromatic polyester unit mainly formed from an aromatic dicarboxylic acid or an ester-forming derivative thereof and a diol or an ester-forming derivative thereof.
  • the soft segment preferably includes, as a main constituent unit, an aliphatic polyether unit and/or an aliphatic polyester unit and a diol.
  • a filament having a lower fineness tends to have a lower flexural rigidity
  • a multifilament tends to have a lower flexural rigidity than a monofilament does if they have the same total fineness.
  • a filament having a lower flexural rigidity tends to easily form crimps.
  • the range of fineness of the monofilament is preferably 0.2 times or more and 1.5 times or less, more preferably 0.3 times or more and 1.0 time or less, still more preferably 0.4 times or more and 0.8 times or less the total fineness of the multifilament.
  • the fineness of the monofilament is 0.2 times or more the total fineness of the multifilament, the multifilament is easily bent due to the rigidity and tension of the monofilament.
  • the fineness of the monofilament is 1.5 times or less the total fineness of the multifilament, the monofilament is easily bent due to the rigidity and tension of the multifilament. As a result, crimps of both the yarns are easily formed in an appropriate balance.
  • the warp and the weft that constitute the woven fabric are preferably fused together to the extent that the air permeability is not impaired.
  • the warp and the weft are fused together, yarn slippage hardly occurs, and the woven fabric is improved in abrasion resistance.
  • fusing the surface layer of the multifilament is not preferable because the soft touch feeling tends to be impaired.
  • the monofilament 1 may be a composite yarn such as a core-sheath composite yarn, or a non-composite yarn entirely made from a single material.
  • a composite yarn such as a core-sheath composite yarn, or a non-composite yarn entirely made from a single material.
  • the monofilament be a core-sheath composite yarn.
  • the material that constitutes the sheath component of the monofilament have a melting point that is at least 10°C lower than that of the material that constitutes the core component of the monofilament.
  • the entire sheath section of the monofilament be fused to the other yarn.
  • the sheath component of the monofilament has a melting point that is lower than the melting point of the core component of the monofilament + 10°C, when the heat setting temperature exceeds the melting point of the core component, the core component also melts during the heat setting, and the strength or the fused portion may decrease.
  • the monofilament that is the above-mentioned core-sheath composite yarn or a non-composite yarn can also be used when the yarns are not fused together.
  • the materials of the core component and the sheath component may be of the same kind or different from each other.
  • the core component and the sheath component contain the same component, and it is more preferable that the core component and the sheath component are made from the same component, from the viewpoint of enhancing the adhesion between the core component and the sheath component.
  • each of the core component and the sheath component be a copolymer composed of a plurality of constituent components including common constituent components, and that the core component and the sheath component be different in the melting point due to different composition ratios or the like of the plurality of constituent components.
  • a core-sheath composite fiber having a core component made from a polyester elastomer having a melting point of 190 to 250°C and a sheath component made from a polyester elastomer having a melting point of 140 to 190°C.
  • the basis weight of the woven fabric of the present invention is desirably within the range of 100 to 500 g/m 2 , more desirably from 100 to 300 g/m 2 , still more desirably from 100 to 200 g/m 2 .
  • the basis weight is 100 g/m 2 or more, the required durability is easily obtained.
  • the basis weight is 500 g/m 2 or less, the advantages of light weight are easily obtained.
  • the woven fabric of the present invention can be basically produced by an ordinary method including, for example, 1) twisting of a multifilament, 2) weaving, and 3) heat treatment.
  • the heat treatment temperature be higher than the melting point of the sheath section and lower than the melting point of the core section.
  • the heat treatment can be performed at a temperature of 150 to 220°C for 30 to 120 seconds, for example.
  • the woven fabric structure may be appropriately selected according to the application from the structures such as a plain weave structure, a twill weave structure, a satin weave structure, and a double weave structure combining these structures.
  • the plain weave structure is preferable since the warp and the weft bind each other at many points, and the woven fabric hardly causes yarn slippage.
  • the plain weave structure is also good in handling properties such as prevention of frays.
  • the weaving method and the loom to be used are not particularly limited as long as the woven fabric of the present invention can be obtained, and may be appropriately selected.
  • the weaving conditions for obtaining the woven fabric within the range defined in the present invention depend on the properties of the used fibers. For example, when focusing on the warp tension and the weft tension, it is difficult to limit the tensions within specific ranges since they vary depending on the properties of the used fibers and the combination thereof. However, these tensions act on the fibers mutually, have an effect on the crimp shapes of the warp and the weft, and thereby change the multifilament coverage ratio a/L and the monofilament concealment ratio h/b.
  • the warp tension is low or the weft tension is high, the warp crimp tends to be small and the weft crimp tends to be large.
  • the warp tension is high or the weft tension is low, the warp crimp tends to be large and the weft crimp tends to be small.
  • the longitudinal shrinkage ratio and the transverse shrinkage ratio in the heat setting also vary depending on the properties of the used fibers and the combination thereof, it is difficult to limit the shrinkage ratios within specific ranges in order to produce the woven fabric of the present invention.
  • These shrinkage ratios act mutually, have an effect on the crimp shapes of the warp and the weft, and thereby change the multifilament coverage ratio a/L and the monofilament concealment ratio h/b.
  • the longitudinal shrinkage ratio is high or the transverse shrinkage ratio is low, the warp crimp tends to be small and the weft crimp tends to be large.
  • the longitudinal shrinkage ratio is low or the transverse shrinkage ratio is high, the warp crimp tends to be large and the weft crimp tends to be small.
  • the weaving conditions should be appropriately adjusted so that the crimp shapes of the weaving yarns fall within the ranges defined in the present invention in view of the properties of the used fibers and the combination thereof.
  • the woven fabric of an embodiment of the present invention can be used in applications such as skin materials for shoes, work clothes, fabrics for bags, members such as vehicle seat members and skin materials for shoes, members for sports balls such as balls of soccer and volleyball, adhesive tapes, base fabrics for nonwoven fabrics, interior members, members for inner layers of vehicles and housing, and materials for civil engineering.
  • a fiber (N) including a multifilament 2 crossing a fiber (M) including a monofilament 1 was cut off in a direction parallel to the direction of the fiber (M), and used as an observation sample.
  • the sample was attached to a sample stand in a non-tensioned state, and an enlarged photograph was taken with a scanning electron microscope (SEM) at a magnification of 40.
  • SEM scanning electron microscope
  • the length a (mm) of the multifilament 2 that crosses the monofilament 1 in a cross section thereof in a direction of woven fabric surface, and the center-to-center distance L (mm) between adjacent filaments of the multifilament were measured each at five positions.
  • the multifilament coverage ratios (a/L) were determined according to the following formula, and the average thereof was calculated (see Fig. 1 ).
  • Multifilament coverage ratio a / L a ⁇ L
  • a cut sample was prepared in the same manner as in the case of measurement of the multifilament coverage ratio. Then, the sample was attached to a sample stand in a non-tensioned state, and an enlarged photograph was taken with a scanning electron microscope (SEM) at a magnification of 40.
  • SEM scanning electron microscope
  • the length b (mm) of the multifilament 2 in a cross section thereof in a direction of woven fabric thickness, and the crimp height h (mm) of the monofilament were measured each at five positions.
  • the multifilament coverage ratios (h/b) were determined according to the following formula, and the average thereof was calculated (see Fig. 1 ).
  • Multifilament coverage ratio h / b h ⁇ b
  • JIS L1096: 2010 8.6.1 method A, five different positions on the woven fabric surface were observed with a magnifying glass, the numbers of warps and wefts in the section of 25.4 mm were counted, and the averages thereof were calculated.
  • cover factor weaving density : number of yarns / 2.54 cm ⁇ ⁇ fineness : dtex .
  • twist coefficient number of twists : T / m ⁇ ⁇ fineness : dtex
  • a sample of 10 mm ⁇ 10 mm was collected, and the front and back surfaces of the woven fabric surface were observed with a scanning electron microscope (SEM) at a magnification of 100 to determine whether the fiber was fused or not.
  • SEM scanning electron microscope
  • a sample was abraded 4000 times with a Taber abrasion tester under conditions of a load of 250 g, an abrasive wheel H-18, and a disc diameter of 100 mm, and then the sample was weighed. The weight difference (g) from the weight before the test was taken as the "weight reduction after 4000 times". For the judgment of rupture of the sample piece, a sample without hole was judged as A, and a sample with hole was judged as B. As a comprehensive judgment of abrasion resistance, a sample that showed a weight reduction after 4000 times less than 0.5 g and no hole was judged as acceptable, and others were judged as rejectable.
  • the measurement was performed 3 times for each of the two directions of warp and weft directions with a KES-SE friction tester manufactured by KATO TECH CO., LTD. under the conditions of a test stand moving speed of 1.00 mm/sec, a friction static load of 50 g, and a 10-mm square piano wire as an abrading material, and the average of the measured values was obtained.
  • the friction coefficient (MIU) represents the slipperiness of the sample surface, and the larger the value is, the less slippery the surface is.
  • MIU friction coefficient
  • MMD 1 / X ⁇ ⁇ ⁇ ⁇ ′ dx integration range : 0 to X
  • the deviation of friction coefficient represents the roughness and irregular texture of the sample surface, and the larger the value is, the more rough the surface is.
  • MMD The deviation of friction coefficient
  • Hytrel (registered trademark) 6347 (melting point: 215°C) manufactured by DU PONT-TORAY CO., LTD., a thermoplastic polyester elastomer, was used as a core component, and "Hytrel” (registered trademark) 4056 (melting point: 153°C) was used as a sheath component.
  • the pellets were dried, melted in separate extruders, weighed with a gear pump, poured into a composite pack, and fed into an extrusion machine. In this way, a 700 dtex monofilament elastic yarn having a core/sheath mass ratio of 70 : 30 was obtained.
  • the elastic yarn had a flexural rigidity of 1.0 cN, and was used as the weft.
  • the polyester elastomer as the sheath component adhered and solidified at the intersection of the warp and the weft of the woven fabric.
  • the warp density and weft density of the finished woven fabrics are as shown in Table 1.
  • Examples 1 to 4 are different from one another in one of the numerical values of weft density and twist coefficient of the warp, but the coverage ratio and concealment ratio were within the specific ranges, and the woven fabrics were excellent in abrasion resistance and had a soft touch feeling.
  • Comparative Example 1 is an example of a case where the concealment ratio is too small. Although the obtained woven fabric had a soft touch feeling due to the flat shape of the warp and the high coverage ratio, the woven fabric was low in concealment ratio and poor in abrasion resistance. Comparative Example 2 is an example of a case where the concealment ratio is too large. The monofilament exposed to the surface, and the woven fabric had a hard touch feeling.
  • Comparative Example 3 since the coverage ratio was too small, the monofilament exposed to the surface, and the woven fabric had a hard touch feeling. Comparative Example 4 is also an example of a case where the coverage ratio is too small. The monofilament exposed to the surface, and the woven fabric had a hard touch feeling although it was excellent in abrasion resistance.
  • Hytrel (registered trademark) 6347 (melting point: 215°C) manufactured by DU PONT-TORAY CO., LTD., a thermoplastic polyester elastomer, was prepared as a core component.
  • the pellets were dried, melted in separate extruders, weighed with a gear pump, poured into a composite pack, and fed into an extrusion machine. In this way, a 400 dtex monofilament elastic yarn having a core/sheath mass ratio of 70 : 30 was obtained.
  • the elastic yarn had a flexural rigidity of 0.3 cN, and was used as the weft.
  • the resultant 240 filament having a total fineness of 835 dtex was twisted so as to have a twist coefficient of the warp of 2890.
  • the resultant yarn was used as a warp.
  • the plain weave fabric as shown in Table 1 was produced under the adjusted weaving conditions such as the warp tension.
  • the obtained woven fabric was heat-treated with a pin tenter at a temperature of 180°C for 1 minute at the same inlet and outlet widths and 0% overfeed rate in the warp direction.
  • the polyester elastomer as the sheath component adhered and solidified at the intersection of the warp and the weft of the woven fabric.
  • the warp density and weft density of the finished woven fabric are as shown in Table 1.
  • Example 5 As shown in Tables 2 and 3, it was confirmed that in Example 5, the coverage ratio and concealment ratio were within the specific ranges, and the woven fabric was excellent in abrasion resistance and had a soft touch feeling.
  • the resultant 480 filament having a total fineness of 1670 dtex was twisted so as to have a twist coefficient of the warp as shown in Table 1.
  • the plain weave fabric as shown in Table 1 was produced under the adjusted weaving conditions such as the warp tension.
  • the obtained woven fabric was heat-treated with a pin tenter at a temperature of 180°C for 1 minute at the same inlet and outlet widths and 0% overfeed rate in the warp direction. Then, the woven fabric was dyed according to an ordinary cationic dye-dyeing method.
  • the warp density and weft density of the finished woven fabrics are as shown in Table 1. No fused portion was found in each of the yarns that constitute the finished woven fabrics.
  • Hytrel (registered trademark) 6347 (melting point: 215°C) manufactured by DU PONT-TORAY CO., LTD., a thermoplastic polyester elastomer, was used as a core component.
  • the pellets were dried, melted in separate extruders, weighed with a gear pump, poured into a composite pack, and fed into an extrusion machine. In this way, a 700 dtex monofilament elastic yarn having a core/sheath mass ratio of 70 : 30 was obtained.
  • the elastic yarn had a flexural rigidity of 1.0 cN, and was used as the weft.
  • a 288 filament high-strength polyester multifilament yarn (manufactured by TORAY INDUSTRIES, INC.) made from polyethylene terephthalate and having a total fineness of 1670 dtex was twisted so as to have a twist coefficient of the warp as shown in Table 1, and the resultant yarn was used.
  • the plain weave fabric as shown in Table 1 was produced under the adjusted weaving conditions such as the warp tension, and at a weft density of 33 yarns/2.54 cm and a warp density of 25 yarns/2.54 cm.
  • the obtained woven fabric was heat-treated with a pin tenter at a temperature of 180°C for 2 minutes at the same inlet and outlet widths and 0% overfeed rate in the warp direction with the woven fabric overfeed 20% only in the warp direction.
  • the polyester elastomer as the sheath component adhered and solidified at the intersection of the warp and the weft of the woven fabric.
  • the warp density and weft density of the finished woven fabric are as shown in Table 1.
  • Example 1 Warp fineness (dtex) Weft fineness (dtex) Warp density (number of yarns/2.54 cm) Weft density (number of yarns/2.54 cm) Twist coefficient of warp Cover factor of warp flexural rigidity of monofilament (cN) Basis weight (g/m 2 )
  • Example 1 1.670 700 29 39 8,173 1,185 1.0 352
  • Example 2 1,670 700 29 46 8,173 1,185 1.0 377
  • Example 3 1,670 700 29 38 0 1,185 1.0 347
  • Example 4 1,670 700 29 41 0 1,185 1.0 356
  • Example 5 835 400 41 50 3,034 1,170 0.3 258
  • Example 6 1,670 700 28 46 8,173 1,144 1.0 369
  • Example 7 1,670 700 28 41 0 1,144 1.0 348
  • Example 8 1,670 700 28 42 8,173 1,144 1.0 355 Comparative Example 1 1,670 700 29 36 0 1,185 1.0 342 Comparative Example 2
  • the woven fabric of the present invention is good in abrasion resistance and touch feeling.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
EP16870822.0A 2015-12-03 2016-12-02 Woven fabric Active EP3385419B1 (en)

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JP2015236198A JP6582939B2 (ja) 2015-12-03 2015-12-03 織物
PCT/JP2016/085908 WO2017094887A1 (ja) 2015-12-03 2016-12-02 織物

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JP7489777B2 (ja) * 2017-03-31 2024-05-24 セーレン株式会社 ノンコートエアバッグ用織物およびエアバッグ
JP7260297B2 (ja) * 2018-12-21 2023-04-18 バンドー化学株式会社 搬送用コンベヤベルト
JP7225057B2 (ja) * 2019-08-08 2023-02-20 Ykk Ap株式会社 網材及びロール網戸
US11306419B2 (en) 2019-11-18 2022-04-19 Dongguan Shichang Metals Factory Ltd. Woven fabric

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JPS58158672U (ja) * 1982-04-17 1983-10-22 小室　徳太郎 垣網用原糸
JPH01298240A (ja) * 1988-05-26 1989-12-01 Goosen:Kk シートサスペンジョン材
JP2660986B2 (ja) * 1993-12-13 1997-10-08 鐘紡株式会社 低通気性織物及びその製造方法
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EP3385419A4 (en) 2019-05-22
EP3385419A1 (en) 2018-10-10
JP2017101355A (ja) 2017-06-08
WO2017094887A1 (ja) 2017-06-08
JP6582939B2 (ja) 2019-10-02
US20180363171A1 (en) 2018-12-20
CN108291335A (zh) 2018-07-17
ES2809129T3 (es) 2021-03-03
CN108291335B (zh) 2020-03-27

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