EP1599624B1 - Tissu croise a chaine extensible et son procede de fabrication - Google Patents

Tissu croise a chaine extensible et son procede de fabrication Download PDF

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Publication number
EP1599624B1
EP1599624B1 EP03816192A EP03816192A EP1599624B1 EP 1599624 B1 EP1599624 B1 EP 1599624B1 EP 03816192 A EP03816192 A EP 03816192A EP 03816192 A EP03816192 A EP 03816192A EP 1599624 B1 EP1599624 B1 EP 1599624B1
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Prior art keywords
elastomeric
fabric
warp
picks
spandex
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EP03816192A
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German (de)
English (en)
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EP1599624A1 (fr
Inventor
Graham H. Laycock
Raymond S. P. Flat F 12th Floor Block 2 LEUNG
Tianyi Liao
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Invista Technologies Sarl
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Invista Technologies SARL Switzerland
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    • 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
    • D03D13/004—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 with weave pattern being non-standard or providing special effects
    • 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
    • D03D15/56—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 elastic
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D17/00—Woven fabrics having elastic or stretch properties due to manner of weaving

Definitions

  • the present invention relates to warp-stretch woven fabrics, particularly to twill fabrics comprising bare elastomeric ends.
  • Warp-stretch fabrics are disclosed in Japanese Patent Applications JP47-021274 and JP3-287833 , in which the elastomeric fibers providing the stretch have been covered with a non-elastomeric fiber such as a nylon or polyester to make a combination yarn, and then sizing, drying, and warping the combination yarn before weaving. These preparation steps make the elastomeric fiber more costly.
  • United States Patent 3,169,558 discloses fabrics in which the spandex is twisted before being woven in a leno construction to avoid elastomeric fiber slippage and to close pinholes in the fabric.
  • leno fabrics are generally too open-textured for use in apparel, and they are expensive.
  • the present invention provides a warp-stretch twill fabric having a face side and a back side and comprising non-elastomeric ends and bare elastomeric ends wherein:
  • This invention provides warp-stretch woven twill fabrics, including regular, herringbone, and pointed twills made from bare elastomeric ends that exhibit little or no grin-through.
  • Regular twills can include 2/1, 1/2, 1/3, and 2/2 twills. Modified twills, in which additional lifts have been added to the plan, are also within the scope of the present invention. It was also surprising that such fabrics could be made with low slippage of the bare elastomeric ends, because it was believed that frequent weaving of the warp and weft fibers (ends and picks, respectively), a characteristic of plain wovens and similar constructions, was necessary to control slippage.
  • bare elastomeric end means a warp-direction uncovered continuous filament (optionally a coalesced multifilament) or a plurality of filaments which, free of diluents, has a break elongation in excess of 100% independent of any crimp and which when stretched to twice its length, held for one minute, and then released, retracts to less than 1.5 times its original length within one minute of being released.
  • filaments include, but are not limited to, rubber filament, spandex, biconstituent filament, and elastoester.
  • “Spandex” means a manufactured filament in which the filament-forming substance is a long chain synthetic polymer comprised of at least 85% by weight of a segmented polyurethane.
  • “Elastoester” means a manufactured filament in which the fiber forming substance is a long-chain synthetic polymer composed of at least 50% by weight of aliphatic polyether and at least 35% by weight of polyester.
  • "Biconstituent filament” means a continuous filament comprising at least two polymers adhered to each other along the length of the filament, each polymer being in a different generic class, for example an elastomeric polyetheramide core and a polyamide sheath with lobes or wings.
  • Grin-through is a term used to describe the exposure, in a fabric, of bare elastomeric filaments to view. Grin-through can manifest itself as an undesirable glitter. If a choice must be made, low grin-through on the face side is more desirable than low grin-through on the back side.
  • the twill fabric of the present invention comprises non-elastomeric ends and bare elastomeric ends.
  • the picks can be elastomeric or non-elastomeric.
  • the ends and picks can be one or more types of elastomeric and non-elastomeric yarns and filaments.
  • the ratio of non-elastomeric to elastomeric ends is typically at least about 2:1 and generally no higher than about 6:1, preferably at least about 3:1 and no higher than about 4:1. When the ratio is too low, the elastomeric ends can be excessively exposed to the surface of the fabric, resulting in undesirable visual and tactile aesthetics. When the ratio is too high, the fabric can have undesirably low stretch-and-recovery properties.
  • the elastomeric ends float over no more than 3 picks on the face side of the fabric, preferably no more than 2 picks. It is preferred that the elastomeric ends also float over the picks on the back side for no more than 3 picks and more preferably for no more than 2 picks.
  • the elastomeric end float is too long, the fabric can have an uneven surface, and grin-through can become unacceptable. It is not necessary that the bare elastomeric ends be twisted. To reduce snagging, it is preferred that each pick float over no more than 5 ends on the face side.
  • Elastomeric end exposure count denotes the number of non-elastomeric ends adjacent to each elastomeric end which are on the opposite side of the pick yarn or continuous filament at a given pick, compared to the elastomeric end.
  • the count can be for the face or the back of the fabric, depending on whether the elastomeric end is on the face or the back at the pick in question, and can have integral values of zero, one, or two.
  • the elastomeric end face exposure count is considered, and similarly for the back. For example, in the lift plan shown in Figure 1 , four non-elastomeric ends are shown in a 2/2 twill pattern into which one bare elastomeric yarn end has been woven.
  • H indicates a non-elastomeric ('hard') end
  • E indicates a bare elastomeric end
  • EC is an abbreviation for exposure count
  • F for face side
  • B for back side.
  • a filled square indicates a non-elastomeric end passing over a pick
  • an empty square indicates a non-elastomeric end passing under a pick
  • an "X” indicates a bare elastomeric end passing over a pick
  • an "O” indicates a bare elastomeric end passing under a pick.
  • the numbers indicate the elastomeric end exposure count for each pick.
  • the bare elastomeric end is on the face side of the fabric, and one adjacent non-elastomeric end is on the back side of the fabric, so the elastomeric end face exposure count for that pick is one.
  • the bare elastomeric end is on the back, and both adjacent non-elastomeric ends are on the front, so the back exposure count is two.
  • the bare elastomeric end is on the face and one adjacent non-elastomeric end is on the back, so the elastomeric end face exposure count for that pick is one.
  • the elastomeric end is on the back, as are both adjacent non-elastomeric ends, so the elastomeric end back exposure count is zero.
  • the fabric of the invention has an elastomeric end face exposure count of two less frequently than once every 10 picks.
  • the fabric preferably has a face exposure count no higher than one in a pattern repeat, and more preferably a face exposure count of zero in a pattern repeat.
  • a face exposure count no higher than one in a pattern repeat, and more preferably a face exposure count of zero in a pattern repeat.
  • at least one adjacent non-elastomeric end float over at least 2 picks on the face side.
  • the face exposure count is two at a frequency higher than once per 10 picks, grin-through of the bare elastomeric filament on the face can be unacceptably high, especially when the elastomeric end floats over 2 or 3 picks.
  • the fabric have an elastomeric end back exposure count no higher than one.
  • Figures exemplify weaving lift plans, and each represents a single pattern repeat Figure 1 has been described elsewhere herein. Characteristics of fabrics made using the plans of Figures 2, 3, 4 , and 5 , which are lift plans for 2/2 twills in which the elastomeric end is variously woven, are given in the Examples. Characteristics of fabrics made using the plans of Figures 6, 6A, 7 , 8, and 9 , which are lift plans for 3/1 twills (a 1/3 twill in the case of Figure 9 ) in which the elastomeric end is variously woven, are also given in the Examples. Figure 10 is a lift plan for a 1/2/2/3 twill, further described in Example 9. Figures 11, 12,13, and 14 are comparative plans for plain and weft rib fabrics, into which an elastomeric end has been woven; characteristics of fabrics made following these lift plans are also further described in the Examples.
  • Figure 15 is a lift plan of a 2/1 twill of the invention in which the lifts of the three bare elastomeric ends in the repeat are not offset from each other.
  • Each of the three bare elastomeric ends in the repeat which are denoted "E1°, "E2", and “E3”, has a different exposure count pattern, in which "F1” denotes the elastomeric end face exposure count and "B1” denotes the elastomeric end back exposure count for the first elastomeric end "E1", and so on.
  • the ratio of non-elastomeric ends to elastomeric ends is 2:1, the highest elastomeric end face exposure count is one, the elastomeric ends float over a maximum of two picks on the face side and one pick on the back side, and the maximum pick float is four.
  • Figure 16 is a lift plan for a modified 3/1 twill of the invention in which the lifts of the bare elastomeric ends are offset within the repeat All the bare elastomeric end exposure counts are zero in this fabric, the ratio of non-elastomeric to bare elastomeric ends is 4:1, the elastomeric ends float over a maximum of three picks, and the maximum pick float is five.
  • Figure 17 is a lift plan for a 2/2 twill of the invention in which the ratio of non-elastomeric to bare elastomeric ends is 4:1, an elastomeric end face exposure count of 2 occurs only once every 12 picks, and the elastomeric ends float over up to two picks.
  • Figure 18 is a lift plan for a modified 2/1 twill of the invention in which the ratio of non-elastomeric to bare elastomeric ends is 5:1, the highest elastomeric end face exposure count is zero, the elastomeric ends 'float' over one pick on the face side, and the highest pick float is five.
  • Figure 19 is a lift plan for a 2/2 herringbone twill of the invention in which the ratio of non-elastomeric to bare elastomeric ends is 4:1, the highest elastomeric end face exposure count is one, the elastomeric ends 'float' over one pick on the face side, the maximum pick face float is three, and, when the elastomeric end is on the face side, at least one adjacent non-elastomeric end floats over two picks.
  • Figure 20 is a lift plan for a 2/2 pointed twill of the invention in which the ratio of non-elastomeric to bare elastomeric ends is 3:1, the highest elastomeric end face exposure count is one, the elastomeric ends float over no more than 2 picks, the maximum pick face float is three, and, when the elastomeric end is on the face side, at least one adjacent non-elastomeric end floats over two picks.
  • the fabric of the invention when finished, preferably has at least about 15% and less than about 50% warp-stretch.
  • Fabric having less than about 15% warp-stretch can have inadequate stretch and recovery, and fabric having more than about 50% warp-stretch can have low recovery upon stretching or washing.
  • Fabric stretch can be adjusted by changing the details of construction, for example pick density, and/or the dyeing and finishing conditions, for example heat-setting.
  • the fabric of the invention can have single-directional (warp) stretch or bi-directional (warp and weft) stretch.
  • the weft direction stretch is also preferably at least about 15%.
  • the fabrics can be about 1-10 wt%, typically about 1.5 -5 wt% elastomeric ends, based on the total weight of the fabric.
  • non-elastomeric ends adjacent to elastomeric ends need not be woven opposite to the elastomeric ends to restrict slippage of the elastomeric ends.
  • various optional measures can be taken to control such slippage. Such measures include increasing such 'opposite' weaving of an elastomeric end and one of the adjacent non-elastomeric ends, weaving the elastomeric ends 1/1 with respect to the picks, heat-setting the fabric at any point in its processing before it is cut into garment-sized pieces, using a lower elastomeric filament denier, and reducing elastomeric end draft during weaving (without reducing it so much that the weaving process is compromised or the stretch in the final fabric is excessively reduced).
  • Such measures can also be used to improve the flatness of the fabric, especially when the elastomeric ends float over 2 or 3 picks.
  • non-elastomeric ends or picks there is no particular limitation on the nature of the non-elastomeric ends or picks, and poly(hexamethylene adipamide) fibers, polycaprolactam fibers, poly(ethylene terephthalate) fibers, poly(trimethylene terephthalate) fibers, cotton, wool, linen, rayon, acetate, lyocell, and the like can be used in either or both the warp and weft.
  • non-elastomeric- fibers which can withstand relatively high heat-set temperature
  • conventional spandex can be used, for example Lycra® T-162C or T-902C.
  • Spandex with a higher heat-set efficiency can also be used, for example as disclosed in United States Patents 5,981,686 and 5,948,875 , and United States Patent Application S/N 09/790422 .
  • the elastomeric filament In order for the elastomeric filament better to withstand the high friction environment of the loom shed, it is preferred that its linear density be about 40-260 denier (44-289 dtex), more preferably 70-9 80 denier (77-200 decitex).
  • a number of precautions can be taken, especially when weaving the elastomer with a high friction staple yarn such as cotton or wool.
  • a high friction staple yarn such as cotton or wool.
  • the elastomeric ends be drawn in at the first shaft so they experience as little up/down motion as possible and that as many as possible of the elastomeric ends in each dent be positioned next to the reed wire of the loom.
  • cotton is used in making the fabric of the present invention, it can be advantageous to reduce levels of cotton fly, which can settle on the bare elastomeric filaments:
  • vacuum manifolds can be used at the ends and across the width of the shed, under and over the warp threadsheets.
  • the path of the bare elastomeric ends from the guide roller bar of the loom to the beat-up position be substantially horizontal and without unnecessary directional changes and that the elastomeric ends be fed to the loom at a substantially constant draft and speed by using a braking device controlled in common with the loom takeup.
  • the let-off means used to provide the elastomeric warps from the beams can be either "negative” (using a brake to control the speed at which the threadsheet is pulled into the loom by the fabric takeup) or "positive” (using a motor driven beam rotating at constant speed to control the threadsheet, as described in United States Patent 6,216,747 ).
  • Tension is applied to the elastomeric warp threadsheets between the beam and the loom, and the elastomeric fibers are stretched 10% to 60% of their elongation at break, for example 1.5X to 6X.
  • 140 denier T162C Lycra® spandex can be stretched 1.5X, 2.0X and 2.5X when tensions of 4 gram/end, 7 gram/end and 12 gram/end are applied, respectively.
  • samples 60 cm long and 6.5 cm wide were cut from the fabric at least 10 cm from the selvage.
  • Three samples were cut for each direction (warp and/or weft) that was to be tested, and the samples were selected from different parts of the fabric to minimize the possibility that two samples might contain the same yarns.
  • the long direction corresponded to the stretch direction to be tested.
  • Each sample was unraveled to 5 cm width, removing about the same number of yarns on each side.
  • One end of each sample was folded back on itself to form a loop, a seam was sewn across the width of the specimen to secure the loop, and a 0.65 cm notch was cut into the loop.
  • a full-width comb was used on the spandex let-off to resist entanglement among the ends, and a cylindrical steel bar (optionally sprayed with silicone lubricant) was placed across the loom between the non-elastomeric yarn and spandex threadsheets just before they entered the shed.
  • the spandex was drawn into the first harness, and each repeat pattern corresponded to one dent.
  • the weft yarns were woven at 478 picks/minute.
  • Each greige fabric in the Examples was finished by first passing it under low tension through hot water three times at 160°F, 180°F and 202°F (71°C, 82°C, 94°C, respectively).
  • Fabrics containing only synthetic fibers were de-sized and pre-scoured with 6 wt% Synthazyme ® (a starch-hydrolyzing enzyme from Dooley Chemicals LLC), 1 wt% Lubit ® 64 (nonionic lubricant from Sybron, Inc.), and 0.5 wt% Merpol® LFH (surfactant, a registered trademark of E. I. du Pont de Nemours and.
  • Each greige fabric containing cotton was pre-scoured with 3 wt% Lubit ® 64 at 120°F (49°C) for 10 minutes; de-sized with 6 wt% Synthazyme ® and 2 wt% Merpol ® LFH for 30 minutes at 160°F (71 °C); scoured with 3 wt% Lubit ® 64, 0.5 wt% Merpol ® LFH and 0.5 wt% trisodium phosphate at 180°F (82°C) for 30 minutes; and bleached with 3 wt% Lubit ® 64,15 wt% of 35% hydrogen peroxide, and 3 wt% sodium silicate at pH 9.5 for 60 minutes at 180°F (82°C); beck-dyed with a tan, black, or green direct dye at 200°F (93°C) for 30 minutes; and heat-set at 380°F (193°C) on a tenter frame for 35 seconds with enough tension to hold it straight without underfeed
  • the spandex in selected samples was additionally dyed red with an acid dye to highlight the spandex.
  • the lift plan of Figure 1 was followed to prepare a 2/2 twill warp-stretch fabric from beams of the 140 denier (156 decitex) Type 162C Lycra ® spandex (a registered trademark of E. I. du Pont de Nemours and Company) and the 150 denier (167 decitex) textured poly(ethylene terephthalate) yarn from Unifi Inc.
  • the weft yarn was 140 denier (955 decitex), 136 filament air-jet textured poly(ethylene terephthalate) yarn from Unifi.
  • the warp density of the poly(ethylene terephthalate) yarn was 99 ends/in (39 ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm) (total warp density 124 ends/in (49 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 105 picks/in (41 picks/cm)
  • the basis weight was 6.9 oz/yd 2 (235 g/m 2 )
  • the warp elongation was 78%. Table I summarizes the results.
  • the lift plan of Figure 2 was followed, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 99 ends/in (39 ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm) (total warp density 124 ends/in (49 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 97 picks/in (38 picks/cm)
  • the basis weight was 6.3 oz/yd 2 (214 g/m 2 )
  • the warp elongation was 66%. Table I summarizes the results.
  • the lift plan of Figure 3 was followed, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 97 ends/in (38 ends/cm)
  • the warp density of the spandex was 24 ends/in (9 ends/cm) (total warp density 121 ends/in (47 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 96 picks/in (38 picks/cm)
  • the basis weight was 6.4 oz/yd 2 (216 g/m 2 )
  • the warp elongation was 65%. Table I summarizes the results.
  • the lift plan of Figure 4 was followed, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 101 ends/in (40 ends/cm)
  • the warp density of the spandex was 24 ends/in (9 ends/cm) (total warp density 125 ends/in (49 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 102 picks/in (40 picks/cm)
  • the basis weight was 6.38 oz/yd 2 (216 g/m 2 )
  • the warp elongation was 65%. Table I summarizes the results.
  • Example 1 The lift plan of Figure 5 was followed, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 97 ends/in (38 ends/cm)
  • the warp density of the spandex was 24 ends/in (9 ends/cm) (total warp density 121 ends/in (47 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 104 picks/in (41 picks/cm)
  • the basis weight was 6.9 oz/yd 2 (234 g/m 2 )
  • the warp elongation was 75%. Table I summarizes the results. TABLE I Example 1 2 3 Comp.1 Comp.
  • the maximum elastomeric face exposure count was one, and the non-elastomeric adjacent end face float was two, but in the Comparison Examples, the face exposure count was two every four picks, and the adjacent non-elastomeric end face float was zero.
  • the lift plan of Figure 6 was followed to prepare a 3/1 twill warp-stretch fabric from the same warp yarns used in Example 1, but the weft yarn was the same as the poly(ethylene terephthalate) warp yarn.
  • Tension (12 g/end) was applied to the spandex so that it was drafted about 2.5X.
  • the warp density of the poly(ethylene terephthalate) yarn was 122 ends/in (48 ends/cm)
  • the warp density of the spandex yarn was 30 ends/in (12 ends/cm) (total warp density 152 ends/in (60 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 100 picks/in (39 picks/cm).
  • the tan, finished 6.0 oz/yd 2 (202 g/m 2 ) fabric had a warp elongation of 28%. Table II summarizes other results.
  • the black finished 13.7 oz/yd 2 (464 g/m 2 ) fabric had a cotton yarn warp density of 127 ends/in (50 ends/cm), a spandex warp density of 32 ends/in (13 ends/cm) for a total of 159 warp ends/in (63 ends/cm), a weft density of 62 picks/in (24 picks/cm), a warp elongation of 21 %, and a weft elongation of 19%.
  • Table II summarizes other results.
  • the green finished 8.6oz/yd 2 (292 g/m 2 ) fabric had a poly(ethylene terephthalate) yarn warp density of 122 ends/in (48 ends/cm), a spandex warp density of 30 ends/in (12 ends/cm) (total of 152 warp ends/in (60 ends/cm)), a weft density of 93 picks/in (37 picks/cm), and a warp elongation of 38%.
  • Table II summarizes other results.
  • Example 6 was repeated, but following a slightly modified lift plan as shown in Figure 6A , in which the bare elastomeric back exposure count was reduced by dropping one lift in the third pick of the repeat
  • the warp density of the poly(ethylene terephthalate) yarn was 99 ends/in (39. ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm) (total warp density 142 ends/in (49 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 99 picks/in (39 picks/cm)
  • the basis weight was 6.4 oz/yd 2 (218 g/m 2 )
  • the warp elongation was 69%. Results are reported in Table II.
  • the lift pattern of Figure 7 was followed to prepare a 3/1 twill, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 100 ends/in (39 ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm) (total warp density 125 ends/in (41 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 104 picks/in (49 picks/cm)
  • the basis weight was 6.9 oz/yd 2 (216 g/m 2 )
  • the warp elongation was 69%. Table II summarizes the results.
  • the lift pattern of Figure 8 was followed to prepare a 3/1 twill, using the same warp and weft yarns as in Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 100 ends/in (39 ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm) (total warp density 125 ends/in (49 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 108 picks/in (43 picks/cm)
  • the basis weight was 6.9 oz/yd 2 (235 g/m 2 )
  • the warp elongation was 73%. Table II summarizes other results.
  • the lift pattern of Figure 9 was followed to prepare a 1/3 twill using the same warp and weft yarns of Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 94 ends/in (37 ends/cm)
  • the warp density of the spandex was 24 ends/in (9 ends/cm) (total warp density 118 ends/in (46 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 103 picks/in (41 picks/cm)
  • the basis weight was 6.6 oz/yd 2 (225 g/m 2 )
  • the warp elongation was 75%.
  • Example 6A the non-elastomeric end float adjacent to one of the spandex lifts was reduced to one, and the grin-through rating, while still very acceptable, was also reduced, demonstrating a preference that at least one non-elastomeric end adjacent to the spandex on the face side float over at least two picks.
  • the fabric of Example 7 shows that a spandex float of 3 can give low grin-through and no elastomeric end slippage.
  • the lift plan of Figure 10 was followed to give a 1/2/213 twill, using the warp and weft yarns of Example 1.
  • the warp density of the poly(ethylene terephthalate) yarn was 98 ends/in (39 ends/cm)
  • the warp density of the spandex was 24 ends/in (9 ends/cm) (total warp density 122 ends/in (48 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 100 picks/in (39 picks/cm)
  • the basis weight was 6.3 oz/yd 2 (214 g/m 2 )
  • the warp elongation was 64%.
  • the minimum non-elastomeric adjacent end face float was 2, the maximum exposure counts and maximum spandex end floats on the face and back were all 1, the maximum weft float on the face was 4 and that on the back was 2, the face grin-through rating was 0, and the back grin-through rating was 3.
  • This face of this fabric shows that the twill construction can be modified and without detracting from the benefits of the invention.
  • the lift plan of Figure 11 was followed to make a 1/1 plain fabric, in which an elastomeric warp yarn and a non-elastomeric warp yarn were woven together and therefore 'paired'.
  • the warp yarns were the same as in Example 1.
  • the weft yarn was 140 denier (156 decitex), 100 filament Type 935T poly(ethylene terephthalate) from Unifi.
  • the finished green 6.3 oz/yd 2 (214 g/m 2 ) fabric had a total warp density of 125 ends/in (49 ends/cm), a weft density of 99 picks/in (39 picks/cm), and a warp elongation of 48%.
  • Table III Other details and results are given in Table III.
  • Comparison Example 3 was repeated, but the lift plan of Figure 12 was followed to make a 2/2 weft rib fabric.
  • the finished green 6.1 oz/yd 2 (207 g/m 2 ) fabric had a total warp density of 135 end/in (53 ends/cm), a weft density of 97 picks/in (38 picks/cm), and a warp elongation of 52%. See Table III for further details and results.
  • Comparison Example 3 was repeated but following the lift plan of Figure 13 to make a 2/3 weft rib fabric (sometimes called "oxford", here a 1/1 plain woven with 2 and 3 ends weaving as one).
  • the finished green 7.1 oz/yd 2 (249 g/m 2 ) fabric had a total warp density of 144 end/in (57 ends/cm), a weft density of 99 picks/in (39 picks/cm), and a warp elongation of 53%. Results are summarized in Table III.
  • the lift plan of Figure 14 was followed to make a combination 1/1 plain and 2/1 weft rib fabric.
  • the warp density of the poly(ethylene terephthalate) yarn was 102 ends/in (42 ends/cm)
  • the warp density of the spandex was 25 ends/in (10 ends/cm)
  • the weft density of the poly(ethylene terephthalate) yarn was 85 picks/in (34 picks/cm)
  • the basis weight was 5.8 oz/yd 2 (196 g/m 2 )
  • the warp elongation was 43%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Air Bags (AREA)

Claims (10)

  1. Tissu croisé à chaîne extensible possédant un côté endroit et un côté envers et comprenant des extrémités non élastomères et des extrémités élastomères nues, dans lequel:
    le rapport des extrémités non élastomères sur les extrémités élastomères est au moins d'environ 2:1;
    le rapport des extrémités non élastomères sur les extrémités élastomères n'est pas de plus d'environ 6:1;
    le nombre d'expositions endroit d'extrémités élastomères de 2 se produit moins fréquemment qu'une fois par 10 duites; et
    les extrémités élastomères flottent au-dessus de pas plus de 3 duites sur le côté endroit.
  2. Tissu suivant la revendication 1, dans lequel une duite flotte au-dessus de pas plus de 5 extrémités sur le côté endroit et, lorsqu'une extrémité élastomère est sur le côté endroit, au moins une extrémité non élastomère adjacente à une extrémité élastomère nue flotte au-dessus d'au moins 2 duites sur le côté endroit.
  3. Tissu suivant la revendication 1, dans lequel les extrémités élastomères flottent au-dessus de pas plus de 3 duites sur le côté envers.
  4. Tissu suivant la revendication 2, possédant:
    une trame extensible d'au moins environ 15%; et
    une trame extensible de pas plus d'environ 50%.
  5. Tissu suivant la revendication 2, dans lequel:
    le nombre d'expositions endroit d'extrémités élastomères n'est pas de plus de 1 dans une répétition de motif;
    le tissu possède au moins environ 15% de chaîne extensible; et
    le tissu possède moins d'environ 50% de chaîne extensible.
  6. Tissu suivant la revendication 2, dans lequel:
    les extrémités élastomères sont présentes dans une mesure d'au moins environ 1 pour-cent par poids de tissu total;
    les extrémités élastomères sont présentes dans une mesure de pas plus d'environ 10 pour-cent par poids de tissu total; et
    les extrémités élastomères sont un spandex.
  7. Tissu suivant la revendication 2, dans lequel:
    au moins une parmi a) les extrémités non élastomères et b) les duites sont choisies dans le groupe constitué de coton et de laine;
    le tissu est choisi dans le groupe constitué de croisés 2/1, 3/1 et 2/2; et
    les extrémités élastomères sont un spandex.
  8. Tissu suivant la revendication 6, dans lequel le spandex présente un rendement de stabilisation thermique à approximativement 175°-190°C ≥ 80%.
  9. Tissu suivant la revendication 1, dans lequel:
    le rapport des extrémités non élastomères sur les extrémités élastomères nues est au moins d'environ 3:1; et
    le rapport des extrémités non élastomères sur les extrémités élastomères est de pas plus d'environ 4:1.
  10. Tissu suivant la revendication 1, dans lequel:
    les extrémités élastomères sont présentes dans une mesure d'au moins environ 1,5 pour-cent par poids de tissu total; et
    les extrémités élastomères sont présentes dans une mesure de pas plus d'environ 5 pour-cent par poids de tissu total.
EP03816192A 2003-03-05 2003-03-05 Tissu croise a chaine extensible et son procede de fabrication Expired - Lifetime EP1599624B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/006816 WO2004079066A1 (fr) 2003-03-05 2003-03-05 Tissu croise a chaine extensible et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1599624A1 EP1599624A1 (fr) 2005-11-30
EP1599624B1 true EP1599624B1 (fr) 2008-05-28

Family

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Family Applications (1)

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EP03816192A Expired - Lifetime EP1599624B1 (fr) 2003-03-05 2003-03-05 Tissu croise a chaine extensible et son procede de fabrication

Country Status (10)

Country Link
EP (1) EP1599624B1 (fr)
JP (1) JP4319627B2 (fr)
KR (1) KR100952261B1 (fr)
CN (1) CN1751149B (fr)
AT (1) ATE397110T1 (fr)
AU (1) AU2003216535A1 (fr)
DE (1) DE60321395D1 (fr)
ES (1) ES2308044T3 (fr)
HK (1) HK1089796A1 (fr)
WO (1) WO2004079066A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8783257B2 (en) 2004-02-23 2014-07-22 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
EP3936180B1 (fr) 2004-04-02 2023-11-29 Fisher & Paykel Healthcare Limited Appareil d'assistance respiratoire
DK3689407T3 (da) 2006-07-14 2021-11-22 Fisher & Paykel Healthcare Ltd Apparat til vejrtrækningshjælp
US7762287B2 (en) * 2008-01-25 2010-07-27 Invista North America S.A.R.L. Stretch wovens with separated elastic yarn system
US10792451B2 (en) 2008-05-12 2020-10-06 Fisher & Paykel Healthcare Limited Patient interface and aspects thereof
KR200450688Y1 (ko) * 2008-07-11 2010-10-22 (주) 배명 학생 교복용 안감
US11660413B2 (en) 2008-07-18 2023-05-30 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
DK3323462T3 (da) 2008-10-10 2022-01-17 Fisher & Paykel Healthcare Ltd Næsepuder til en patientgrænseflade.
CN105816949B (zh) * 2009-05-12 2020-07-28 费雪派克医疗保健有限公司 病人接口及其多个方面
EP4070841A1 (fr) 2010-10-08 2022-10-12 Fisher & Paykel Healthcare Limited Appareil d'assistance respiratoire
CN107626023B (zh) 2012-08-08 2021-03-02 费雪派克医疗保健有限公司 在提供呼吸治疗中使用的接口组件
CN115323579A (zh) * 2022-08-31 2022-11-11 读布科技(杭州)有限公司 一种高支高密导光面料的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586595A (en) * 1969-10-28 1971-06-22 Wyomissing Corp Decorative anchor elastic fabric tape
US3858622A (en) * 1973-06-14 1975-01-07 Johnson & Johnson Narrow elastic fabric for apparel waistbands
TW452612B (en) * 1999-03-16 2001-09-01 Toyo Boseki Composition polyurethane elastic yarns and stretch woven fabrics
FR2795098B1 (fr) * 1999-06-17 2004-07-23 Descamps S A Articles tisses, "eponge extensible"
CN1330176A (zh) * 2000-06-17 2002-01-09 内蒙古彤辉实业有限责任公司 弹性功能纺织物
US6659139B2 (en) * 2002-01-18 2003-12-09 E. I. Du Pont De Nemours And Company Warp-stretch woven fabric and method for making same

Also Published As

Publication number Publication date
EP1599624A1 (fr) 2005-11-30
KR100952261B1 (ko) 2010-04-09
ES2308044T3 (es) 2008-12-01
CN1751149B (zh) 2010-10-06
WO2004079066A1 (fr) 2004-09-16
JP2006514170A (ja) 2006-04-27
AU2003216535A1 (en) 2004-09-28
JP4319627B2 (ja) 2009-08-26
DE60321395D1 (de) 2008-07-10
HK1089796A1 (en) 2006-12-08
CN1751149A (zh) 2006-03-22
KR20050109526A (ko) 2005-11-21
ATE397110T1 (de) 2008-06-15

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