WO2001075201A2 - Tissu de maintien a mailles circulaires presentant une teneur elevee en spandex permettant d'obtenir un etirement dans quatre directions - Google Patents

Tissu de maintien a mailles circulaires presentant une teneur elevee en spandex permettant d'obtenir un etirement dans quatre directions Download PDF

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Publication number
WO2001075201A2
WO2001075201A2 PCT/US2001/007121 US0107121W WO0175201A2 WO 2001075201 A2 WO2001075201 A2 WO 2001075201A2 US 0107121 W US0107121 W US 0107121W WO 0175201 A2 WO0175201 A2 WO 0175201A2
Authority
WO
WIPO (PCT)
Prior art keywords
spandex
fabrics
fabric
fibers
circular knit
Prior art date
Application number
PCT/US2001/007121
Other languages
English (en)
Other versions
WO2001075201A3 (fr
Inventor
James M. Miller
Harry J. Mccarter
Larry Stephens
Jon Daniel
Steven A. Hall
Original Assignee
Milliken & Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milliken & Company filed Critical Milliken & Company
Priority to AU4200101A priority Critical patent/AU4200101A/xx
Publication of WO2001075201A2 publication Critical patent/WO2001075201A2/fr
Publication of WO2001075201A3 publication Critical patent/WO2001075201A3/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads

Definitions

  • This invention relates to support garments which comprise circular knit fabrics having relatively high amounts of spandex material as well as sufficient amounts of other fibers to simultaneously provide maximum support and maximum comfort to a wearer.
  • Such high-spandex content garment fabrics are novel to the industry since the permissible added amount of spandex within such fabrics has been limited due to the power, modulus strength, and elongation of such fibers.
  • spandex provides desirable properties within certain garments (such as brassieres, girdles, medical braces, athletic supporters, and the like)
  • previous attempts at producing high- spandex-content fabrics and garments produced constrictive articles which proved too uncomfortable to wear.
  • the inventive fabrics and garments provide such desirable spandex properties while also increasing the comfortability to the wearer. The method of producing such fabrics is also contemplated within this invention.
  • Support garments have been utilized for centuries to provide methods of keeping body parts stationary (such as with knee braces), alleviating discomfort and/or making fashion statements (such as with brassieres, including sports bras), constraining certain areas of a person's body in order ultimately to provide an aesthetically pleasing figure (such as with girdles and the like), protecting particularly susceptible body parts from harm (such as with athletic supporters), and the like.
  • braces have been produced which utilize high tensile strength/low elongation fibers, metal components, and cast materials.
  • Brassieres and girdles have been fashioned from certain fabric configurations, metal wires, and, again, high tensile strength/low elongation fibers.
  • Added padding and/or high tensile strength/low elongation fibers have been utilized to improve upon existing athletic supporter garments as well.
  • the improvements have focused on adding cumbersome and potentially uncomfortable metal wires or extra material within the body of the garment, utilizing high tensile strength fibers in high amounts, or utilizing strips of the garment fabric placed at specific angles, all in order to provide the requisite and desired support. As such, there is a need to provide the necessary level of support for such garments with a simultaneous increase in comfort for the wearer.
  • High modulus fibers such as spandex
  • spandex have been introduced in the past within woven and knit fabric constructions in order to provide increased power, elongation, and thus support within such garments.
  • an increase in the amount of spandex has invariably reduced the comfort level due to the highly constrictive power of such high spandex-content fabrics.
  • circular knit fabrics have been extremely difficult to create which comprise high amounts of spandex (greater than
  • Circular knits are highly desirable as support garments and permit more efficient jet-dyeing procedures through the production of curl-susceptible (i.e., elastomeric fiber-containing) fabrics in tubular form.
  • Jet dyeing provides a simplified and effective method of coloring fabrics quickly and evenly.
  • the ability to utilize jet dyeing techniques would reduce cost by more thoroughly and evenly coloring the target fabrics. Consistency in colorations for large amounts of fabrics would thus be more easily and inexpensively achieved.
  • Warp-knit fabrics comprising curl-susceptible fibers are not produced in tubular form; instead they are formed as webs.
  • a further object of the invention is to provide a comfortable, functional support garment made from circular knit fabrics of high spandex content.
  • Another object is to provide a support garment which possesses suitable flexibility for placement on and around a target body part and provides excellent support upon placement at the target location.
  • Yet another object of this invention is to provide a support garment which is extremely colorfast if dyed, and has a large amount of spandex fibers therein.
  • Still a further object of the invention is to provide a method for producing such a high spandex-content circular knit support garment fabric.
  • this invention encompasses a circular knit fabric comprising at least two different types of fibers, wherein one type is spandex, and wherein said spandex is present in an amount of at least 22% of the total fabric weight, and wherein said comprises a repeating float yarn pattern. Furthermore, this invention also concerns a method of forming a circular knit fabric comprising spandex and at least one other type of fiber, wherein said spandex is present in an amount of at least 22% of the total fabric weight, said method comprising the steps of:
  • carrier fabric in step “d” is intended to mean the fabric already knitted and thus the fabric in which the spandex yarns are to be incorporated.
  • the carrier fabric may be of any size and any number of previously knit fibers, including previously incorporated spandex fibers.
  • Circular knits as discussed above, are highly desirable as support garments, permit more efficient jet-dyeing procedures as compared with other knit fabrics, and are more easily stitched to conform with specific shapes and configurations in order to provide maximum comfort to a wearer.
  • support garment within this invention is intended to encompass any textile utilized on a person's body for the purpose of providing support to, keeping stationary, and/or protecting a particular body part or parts. Included in this description are brassieres, most notably, but not limited to, sports bras; medical braces, such as for knees or elbows, as merely examples; support underwear, such as "control-top” panties and hosiery; and athletic supporters (i.e., jock straps). Again, this list merely describes preferred embodiments of the inventive support garment and by no means is intended to limit the scope of the invention.
  • Polyester and polyamide are most preferred; however, any natural fibers, such as cotton, ramie, and the like; any other synthetic fibers, such as polyurethanes, acrylics, and the like; and any blends thereof of any natural and/or synthetic fibers may be utilized within the inventive fabric, such as cotton/polyester and polyester/nylon blends.
  • weights of fabric in the range of between 2.0 and 12.5 ounces per square yard are preferred with more preferred possessing weights of 3.5 to about 10.5 ounces per square yard.
  • permissible deniers of such other fibers range from about 10 to about 1,000, with 20 to about 700 more preferable, and from about 70 to about 200 most preferable.
  • synthetic fibers may be present in filament form in any count; however, counts ranging from about 1 to about 100 are preferred, 5 to about 80 more preferred, and from about 20 to about 70 most preferred.
  • spandex is available from DuPont under the tradename Lycra®; however, any type of spandex may be utilized within this inventive fabric.
  • the range of permissible deniers for such fibers is from about 1 to about 1,000; preferably from about 5 to about 700; more preferably from about 50 to about 200; and most preferably from about 100 to about 140.
  • One preferred type of spandex is that which may elongate, at the least, to about 100%> of its relaxed length. Again, at least 22% by weight of the target fabric should constitute some form of spandex in order to provide the required power in the fabric (for the required support functions). The presence of such high amounts of spandex provides highly desirable modulus strengths for the target fabrics to provide the aforestated support functions.
  • modulus strengths range from about 3.3 pounds of force to about 7.8 pounds of force over the target fabric in either direction (when present as about 18% of the total weight of the target fabric).
  • such strengths may be altered due to the other types of fibers which may be utilized (in addition to the spandex), a lower or higher amount of spandex (up to 21%, at least 17%), or through the use of other circular knit patterns or stitches.
  • the high amounts of spandex now required within the inventive fabric provide a range of from about 2.8 LBF to about 10.0LBF.
  • any other standard textile additives such as dyes, pigments, hydrophobic agents (i.e., fluorocarbons), sizing compounds, and softening agents may also be incorporated within or introduced onto the surface of the target fabric after or incorporated within the constituent fibers prior to production.
  • Particularly desired as optional finishes to the inventive fabrics are soil release agents which improve the wettability and washability of the fabric.
  • Preferred soil release agents include those which provide hydrophilicity to the surface of polyester. With such a modified surface, again, the fabric imparts improved comfort to a wearer by wicking moisture.
  • inventive fabric preferably comprises such soil release agents in order to wick moisture from the wearer (as another way of providing comfort), particularly, and primarily when the constituent fibers are spandex and the preferred polyester.
  • Such an inventive fabric also provides the benefit of heat-moldability to the dimensions of a wearer.
  • the yarns themselves will stretch to a certain orientation upon placement of the fabric into a garment and fitting the resultant garment to at least a portion of the body of a wearer. At that point, the fabric may then be heat-set to retain the specific body-dimension yarn orientation in order to provide continued and consistent comfortability for the wearer.
  • the yarns, upon stretching, can thus be set into specific positions upon exposure to the temperature (which is highly dependent upon the type of fibers present; for example, if polyester or polyamide,
  • the heat-set temperature is from about 162 to about 210°C)
  • this invention lies in the specific method utilized to incorporate the spandex fibers within the circular knit construction.
  • this method entails keeping the tension on the spandex substantially constant during the delivery of the spandex thread (or yam) to the needle bed of the circular knit machine.
  • the thread (or yam) is then elongated to at least 100%. of its stretch capability while it is fed into the needle bed and threaded through a carrier fabric.
  • the thread (or yam) is then pulled into the loop construction of the fabric while still elongated. After knitting the fiber can then relax into original shape.
  • the inventive method eliminates such problems by first elongating the spandex threads (or yams) and subsequently knitting them into the desired circular knit stmcture. The fibers then relax into the same pattern as the other fibers within the target fabric, which, in turn, provides the basis for the production of powerful, heat- moldable, and comfortable circular knit high spandex-content support garments.
  • this inventive fabric may be incorporated into any type of support garment since the high amounts of spandex provide the proper amount of stress and strain for the target fabric.
  • the fabrics may be knit in different fashions in order to provide more power to discrete areas of the fabric depending on the type of support garment within which such fabric will be incorporated.
  • brassieres including sports bras, medical braces, girdles, and athletic supporters are contemplated as support garments for the inventive fabrics.
  • FIG. 1 is a top view of a portion of an inventive circular knit fabric.
  • FIG. 2 is a rear view of the same inventive fabric of FIG. 1.
  • FIG. 1 there is shown a knit fabric portion 10 comprising a specific knit stmcture.
  • a stmcture is well known and common as a circular knit pattern.
  • the preferred spandex yams 12 possess a denier of about 105 and are knitted in a one-end-to-one-end ratio with 2-ply 68 count filament polyester yams 14 possessing deniers of about 70 with the spandex yarns 12 preferably present as the top yam component within each individual stitch. In such a manner the spandex yams 12 are oriented as the internal portions of each stitch in order to generate greater power to the overall fabric 10.
  • FIG. 2 represents the rear view of such a portion of fabric 10.
  • the spandex yams 12 are internal as compared to the preferred polyester yams 14, in order to generate the greatest degree of power to the overall fabric stmcture 10.
  • Such a specific circular knit fabric 10 has heretofore not been formed with such a high degree of spandex yarns 12 incorporated in combination with other fibers, such as polyester yams 14.
  • the possible range of amounts of spandex yams within the inventive fabrics may be as low as, and most preferred to be, 22% of the total fiber content of the entire fabric stmcture.
  • An upper limit of roughly 75%o would present a limit as to the constrictive power for utility within a proper, comfortable support garment. More preferably would be a spandex weight amount of between 22 and 50%>.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)

Abstract

L'invention concerne des articles de soutien formés des tissus en tricot circulaire à teneur relativement élevée en spandex et constitués d'autres fibres en quantité suffisante pour que l'utilisateur bénéficie d'un confort et d'un soutien maximum. Lesdits tissus à teneur élevée en spandex sont nouveaux dans l'industrie textile, car la quantité admise de spandex ajoutée dans lesdits tissus a été limitée en raison de la résistance, du module et de l'allongement de telles fibres. Bien que le spandex permette d'obtenir les propriétés recherchées dans certains articles (tels que les brassières, les gaines et les armatures médicales, les suspensoirs et autres articles similaires), les tentatives précédentes de fabrication de tissus et de vêtements à teneur élevée en spandex ont abouties à des articles constricteurs trop inconfortables pour l'utilisateur. Les tissus et vêtements décrits dans cette invention présentent les propriétés recherchées du spandex et ils sont plus confortables à porter. L'invention concerne également le procédé de fabrication de tels tissus.
PCT/US2001/007121 2000-04-04 2001-03-06 Tissu de maintien a mailles circulaires presentant une teneur elevee en spandex permettant d'obtenir un etirement dans quatre directions WO2001075201A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU4200101A AU4200101A (en) 2000-04-04 2001-03-06 Circular knit support fabrics having high spandex content providing four-way stretch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54220200A 2000-04-04 2000-04-04
US09/542,202 2000-04-04

Publications (2)

Publication Number Publication Date
WO2001075201A2 true WO2001075201A2 (fr) 2001-10-11
WO2001075201A3 WO2001075201A3 (fr) 2002-07-04

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AU (1) AU4200101A (fr)
WO (1) WO2001075201A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110086208A1 (en) * 2009-10-08 2011-04-14 Nemphos Jr Charles J Lightweight, Breathable, Waterproof, Stretchable, Dye-Sublimatable Fabric For Apparel
US8568195B1 (en) 2008-01-15 2013-10-29 Times Three Clothier, LLC Multi-fabric garment
CN105568486A (zh) * 2015-12-15 2016-05-11 桐乡市濮院羊毛衫职业技术学校 毛呢面料的生产方法
CN105568531A (zh) * 2015-12-15 2016-05-11 苏州紫澜实业有限公司 一种易干的羊毛针织品
CN107805874A (zh) * 2017-10-17 2018-03-16 广东新会美达锦纶股份有限公司 一种无刺痒麻锦网眼织物

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1418465A (fr) * 1964-12-04 1965-11-19 Rhodiaceta Nouveau tricot et procédé pour le fabriquer
BE704681A (fr) * 1966-10-04 1968-02-15
US3720078A (en) * 1970-03-16 1973-03-13 Burlington Industries Inc Knitted compressive stretch fabrics,and method and apparatus for the manufacture thereof
US3971234A (en) * 1974-09-04 1976-07-27 E. I. Du Pont De Nemours And Company Double-knit elastic fabric with raised patterns
US5687587A (en) * 1993-04-17 1997-11-18 E. I. Du Pont De Nemours And Company Elastic double-knit fabric
FR2781816A1 (fr) * 1998-07-31 2000-02-04 Marcoux Laffay Sa Tricot trame elastique pour article presentant des zones ayant des extensibilites differentes et articles obtenus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1418465A (fr) * 1964-12-04 1965-11-19 Rhodiaceta Nouveau tricot et procédé pour le fabriquer
BE704681A (fr) * 1966-10-04 1968-02-15
US3720078A (en) * 1970-03-16 1973-03-13 Burlington Industries Inc Knitted compressive stretch fabrics,and method and apparatus for the manufacture thereof
US3971234A (en) * 1974-09-04 1976-07-27 E. I. Du Pont De Nemours And Company Double-knit elastic fabric with raised patterns
US5687587A (en) * 1993-04-17 1997-11-18 E. I. Du Pont De Nemours And Company Elastic double-knit fabric
FR2781816A1 (fr) * 1998-07-31 2000-02-04 Marcoux Laffay Sa Tricot trame elastique pour article presentant des zones ayant des extensibilites differentes et articles obtenus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568195B1 (en) 2008-01-15 2013-10-29 Times Three Clothier, LLC Multi-fabric garment
US20110086208A1 (en) * 2009-10-08 2011-04-14 Nemphos Jr Charles J Lightweight, Breathable, Waterproof, Stretchable, Dye-Sublimatable Fabric For Apparel
CN105568486A (zh) * 2015-12-15 2016-05-11 桐乡市濮院羊毛衫职业技术学校 毛呢面料的生产方法
CN105568531A (zh) * 2015-12-15 2016-05-11 苏州紫澜实业有限公司 一种易干的羊毛针织品
CN107805874A (zh) * 2017-10-17 2018-03-16 广东新会美达锦纶股份有限公司 一种无刺痒麻锦网眼织物

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Publication number Publication date
AU4200101A (en) 2001-10-15
WO2001075201A3 (fr) 2002-07-04

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