US3098369A - Compressive stocking - Google Patents

Compressive stocking Download PDF

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Publication number
US3098369A
US3098369A US156459A US15645961A US3098369A US 3098369 A US3098369 A US 3098369A US 156459 A US156459 A US 156459A US 15645961 A US15645961 A US 15645961A US 3098369 A US3098369 A US 3098369A
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US
United States
Prior art keywords
yarn
denier
nylon
polyurethane
fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US156459A
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English (en)
Inventor
Burleson Aaron
Holmes Mark Nicholas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Burlington Industries Inc
Original Assignee
Burlington Industries Inc
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 Burlington Industries Inc filed Critical Burlington Industries Inc
Priority to US156459A priority Critical patent/US3098369A/en
Priority to GB37401/62A priority patent/GB959627A/en
Priority to AU22991/62A priority patent/AU263619B2/en
Priority to DK463362AA priority patent/DK120960B/da
Priority to DEB69423A priority patent/DE1210510B/de
Priority to CH1372762A priority patent/CH412173A/de
Application granted granted Critical
Publication of US3098369A publication Critical patent/US3098369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D04B1/22—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 specially adapted for knitting goods of particular configuration
    • D04B1/24—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 specially adapted for knitting goods of particular configuration wearing apparel
    • D04B1/26—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 specially adapted for knitting goods of particular configuration wearing apparel stockings
    • D04B1/265—Surgical stockings

Definitions

  • This invention relates to knitted compressive or support garments, and in particular to circularly knit ladies con-n pressive stockings.
  • the invention involves circularly knit nylon fabric having bare, elastomeric polyurethane yarn knitted into alternate courses of the fabric, to provide strong and durable compressive garments exhibiting unique and desirable properties.
  • the elastomeric polyurethane yarns utilized are non-foamed, being generally single strand but composed of either multi-filament or monofilamen-t yarns which are commercially available for example from E. I. du Pont de Nernours and Company under the names Fiber K and Lycra, from the US. Rubber Co. as Vy-rene, and from the Firestone Tire & Rubber Co. as Spandex.
  • a principal object of the present invention is the provision of novel tubular compressive fabrics and garments exhibiting superior two-way stretch, resulting from the incorporation therein of el-astomeric polyurethane yarn and the manner of its incorporation.
  • Related objects are the provision of sheer ladies compressive stockings, having excellent hand and feel.
  • a further object of the invention is the provision of compressive garments adapted to be circularly knit at high speed, utilizing simple and conventional circular knitting machines and procedures. Specifically, the garments are particularly suited for two-feed and four-feed knitting.
  • Another object is to provide ladies compressive stockings having bare, elastomeric polyurethane yarn in corporated therein, in such manner that the elastomeric yarn does not detract from the appearance of the finished stockings. Further objects will be in part evident and in part pointed out hereinafter.
  • FIGURE 1 is a diagrammatic side view of a compressive stocking embodying the invention.
  • FIGURE 2 is an enlarged diagrammatic view of the leg fabric of the stocking of FIGURE 1, showing the fabric in stretched and idealized condition for the sake of clarity.
  • the stocking S illustrated in FIGURE 1 includes the usual welt 10, shadow welt 12, leg portion 14, heel 16, foot portion 18 and toe 20.
  • the structure of the fabric may be readily understood from a detailed description of the knitting of the stock-ing.
  • the stocking is knit on a conventional 400-needle circular knitting machine provided with two feeds. Except possibly for the heel 16 and toe 20, the entire stocking may be knit two-feed.
  • the welt is knit with two ends of 40 denier filament crimped or texturized nylon yarn, and the shadow welt 12 is then similarly knit with two ends of 40 denier textur- -ized yarn.
  • the machine shifts into knitting of the body or leg portion 14.
  • the feed at the main knitting station is changed to 40 denier raw pirn nylon yarn
  • the feed at the auxiliary knitting station is changed to 20 denier filament raw pirn nylon yarn.
  • a bare 70 denier elastomeric polyurethane yarn is supplied at the auxiliary knitting station with the 20 denier nylon yarn, and is knitted in therewith,
  • the polyurethane yarn is tensioned and stretched approximately 225% as it is fed to the auxiliary knitting Patented July 23, 1963 station of the machine, so that a relaxed length of about 12 to 14 inches of polyurethane yarn, stretched to approximately 40 inches, is fed into each course along with 40 inches of nylon yarn.
  • the two-feed knitting above described proceeds through the leg portion until ankle tightening begins at the usual point.
  • Ankle tightening may be elfected by increasing the tension on the respective nylon body yarns, thereby decreasing the length fed per course and the size of the knitted loops.
  • the tension of the polyurethane yarn is not altered, but remains constant throughout the leg. This permits the use of a very simple feeding and tensioning device for the polyurethane yarn, which may be a feed wheel geared directly to the machine drive to provide a uniform 12 inches of relaxed yarn per course, and since this feed remains constant throughout the stocking, a simple mechanical arrangement is permitted.
  • the machine shifts into the heel 16 in conventional fashion, and at the completion of the heel, the foot portion 18 may be knitted two-feed in the same manner as is the leg 14.
  • the relaxed length of polyurethane yarn fed per course of the foot is uniform and the same as in the leg, whereby machine design and operation is greatly simplified.
  • two-feed knitting may be terminated and the toe 20 knitted single-feed in conventional fashion. It will be recognized that the heel 16 and toe 20 may be knitted either single-feed or twofeed, and may be knitted with a single yarn, or reinforced.
  • FIGURE 2 represents the leg and foot fabric, shown in stretched and idealized condition.
  • courses 22 and 2.4 are knit of the same 40 denier raw pirn nylon yarn, and the alternate courses are knit throughout of 20 denier raw pir-n nylon yarn 26 and the 70 denier polyurethane yarn 28.
  • the nylon yarn is knit to the size of a conventional stocking, and the polyurethane yarn greatly extended, so that on relaxation of the polyurethane yarn, the dimensions of the stocking are considerably less than those of a conventional stocking.
  • the approximate shape of the stocking in as-knitted condition may be as illustrated in FIGURE 1 of the drawing, wherein the leg and foot portions are substantially cylindrical.
  • the polyurethane yarn In the as-knit condition, and also when the stocking is stretched on the leg, the polyurethane yarn is substantially embedded in the fabric, and the yarn exposed at the surface is predominantly nylon, whereby the appearance of the fabric approximates that of a nylon fabric.
  • the density of each 40 denier nylon yarn course approximates the density of the alternate courses, including the 20 denier nylon yarn and the extended 70 denier polyurethane yarn.
  • the stocking may be boarded and finished in the form illustrated in FIGURE 1, or if desired it may be boarded and finished in more conventional form, wherein the upper section of the leg portion is Wider than the ankle section thereof.
  • the polyurethane yarn being thermoplastic, the stocking is readily shaped in the usual boarding operation. The stocking exhibits excellent dyeing and finishing characteristics.
  • the above example may be varied, in order to produce a slightly heavier fabric, by knitting through the leg portion with 50 denier raw pirn yarn at one feed, and with 30 denier raw pirn yarn and 70 denier polyurethane yarn at the other feed.
  • a similar stocking may be knitted on a 340-needle circular knitting machine, supplying 20 denier raw pirn yarn with 140 denier poly-urethane yarn to alternate courses, and 50 denier raw pirn yarn to the intervening courses.
  • monofilament nylon yarn may be utilized, and thrown yarn containing twist may be utilized in place of raw pirn yarn.
  • said portion having bare elastomeric polyurethane yarn knitted in alternate courses to give compressive support in the "longitudinal and coursewise directions, said polyurethane yarn being embedded in the fabric so that the yarn exposed at the surface is predominantly nylon, the body yarn in the same courses with the polyurethane yarn being lighter in weight than the body yarn in the intervening courses, whereby the appearance of the fabric approximates that of a nylon fabric.
  • said portion having bare elastomeric polyurethane yarn knitted in alternate courses to give compressive support in the longitudinal and coursewise directions, said polyurethane yarn being embedded in the fabric so that the yarn exposed at the surface is predominantly nylon, the body yarn in the same courses with the polyurethane yarn being lighter in weight than the body yarn in the intervening courses, whereby the appearance of the fabric approximates that of a nylon fabric.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Socks And Pantyhose (AREA)
US156459A 1961-12-01 1961-12-01 Compressive stocking Expired - Lifetime US3098369A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US156459A US3098369A (en) 1961-12-01 1961-12-01 Compressive stocking
GB37401/62A GB959627A (en) 1961-12-01 1962-10-02 Compressive fabric, e.g. for stocking
AU22991/62A AU263619B2 (en) 1961-12-01 1962-10-09 Improvements in or rela ting to curtain suspension means
DK463362AA DK120960B (da) 1961-12-01 1962-10-26 Rundstrikket beklædningsstykke, især støttestrømpe.
DEB69423A DE1210510B (de) 1961-12-01 1962-10-30 Rundstrickware mit Druck- oder Stuetzwirkung
CH1372762A CH412173A (de) 1961-12-01 1962-11-23 Stützender Strumpf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US156459A US3098369A (en) 1961-12-01 1961-12-01 Compressive stocking

Publications (1)

Publication Number Publication Date
US3098369A true US3098369A (en) 1963-07-23

Family

ID=22559655

Family Applications (1)

Application Number Title Priority Date Filing Date
US156459A Expired - Lifetime US3098369A (en) 1961-12-01 1961-12-01 Compressive stocking

Country Status (6)

Country Link
US (1) US3098369A (da)
AU (1) AU263619B2 (da)
CH (1) CH412173A (da)
DE (1) DE1210510B (da)
DK (1) DK120960B (da)
GB (1) GB959627A (da)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263454A (en) * 1966-08-02 Method and apparatus for knitting
US3299890A (en) * 1963-06-11 1967-01-24 San Francisco Res Corp Surgical bandage, dressing and the like
US3306081A (en) * 1963-07-15 1967-02-28 Alamance Ind Inc Support stocking
US3501930A (en) * 1967-05-16 1970-03-24 Chadbourn Inc Sheer knit fabric
US3729956A (en) * 1967-10-04 1973-05-01 M Nebel Self supporting knitted lady{40 s stocking
US4062204A (en) * 1973-06-18 1977-12-13 Ancase S.A. High luster interlock fabric incorporating producer twist yarns
US5103656A (en) * 1990-03-27 1992-04-14 Nk Mills, Inc. Split-heel sock
JPH0545006U (ja) * 1991-11-15 1993-06-18 鐘紡株式会社 ストツキング
US6151927A (en) * 1999-03-15 2000-11-28 Kayser-Roth Corporation Circularly knit body garment
EP1375717A1 (en) * 2002-06-27 2004-01-02 Sara Lee Corporation Elastic knitted fabric
US7846145B2 (en) 2005-11-08 2010-12-07 Rusl, Llc Body conforming textile holder and absorbent article
US20110092945A1 (en) * 2005-05-23 2011-04-21 Jerry Edward Carstens System comprising thong-shaped holder and absorbent article
US8099794B2 (en) 2005-12-19 2012-01-24 Rusl, Llc Body conforming textile holder for electronic device
US20120324961A1 (en) * 2010-03-23 2012-12-27 Radiante Garment, in particular a compression garment for medical use
JP2016211119A (ja) * 2015-05-12 2016-12-15 アツギ株式会社 ストッキング類とその編成方法
US9976237B2 (en) 2015-05-18 2018-05-22 Nike, Inc. Sock with heel locating features

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1156002A (en) * 1979-11-12 1983-11-01 Maxwell Wilkinson Knitted sock
AUPN629695A0 (en) * 1995-10-31 1995-11-23 Zelman, Henry A knitted fabric and method of producing a knitted fabric

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396166A (en) * 1945-06-28 1946-03-05 Scott & Williams Inc Circular knit hosiery and method of making same
US2430860A (en) * 1944-06-07 1947-11-18 Du Pont Polyamide-formaldehyde reactions and products thereof
US2949023A (en) * 1958-08-19 1960-08-16 Burlington Industries Inc Hosiery
US2962885A (en) * 1959-06-03 1960-12-06 Kendall & Co Elastic garment
US3016726A (en) * 1956-12-06 1962-01-16 Lawson Products Inc Knit fabric incorporating elastic thread and garments formed thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720097A (en) * 1952-08-11 1955-10-11 Mond William De Surgical stocking

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430860A (en) * 1944-06-07 1947-11-18 Du Pont Polyamide-formaldehyde reactions and products thereof
US2396166A (en) * 1945-06-28 1946-03-05 Scott & Williams Inc Circular knit hosiery and method of making same
US3016726A (en) * 1956-12-06 1962-01-16 Lawson Products Inc Knit fabric incorporating elastic thread and garments formed thereof
US2949023A (en) * 1958-08-19 1960-08-16 Burlington Industries Inc Hosiery
US2962885A (en) * 1959-06-03 1960-12-06 Kendall & Co Elastic garment

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263454A (en) * 1966-08-02 Method and apparatus for knitting
US3299890A (en) * 1963-06-11 1967-01-24 San Francisco Res Corp Surgical bandage, dressing and the like
US3306081A (en) * 1963-07-15 1967-02-28 Alamance Ind Inc Support stocking
US3501930A (en) * 1967-05-16 1970-03-24 Chadbourn Inc Sheer knit fabric
US3729956A (en) * 1967-10-04 1973-05-01 M Nebel Self supporting knitted lady{40 s stocking
US4062204A (en) * 1973-06-18 1977-12-13 Ancase S.A. High luster interlock fabric incorporating producer twist yarns
US5103656A (en) * 1990-03-27 1992-04-14 Nk Mills, Inc. Split-heel sock
JPH0545006U (ja) * 1991-11-15 1993-06-18 鐘紡株式会社 ストツキング
US6151927A (en) * 1999-03-15 2000-11-28 Kayser-Roth Corporation Circularly knit body garment
EP1375717A1 (en) * 2002-06-27 2004-01-02 Sara Lee Corporation Elastic knitted fabric
US20110092945A1 (en) * 2005-05-23 2011-04-21 Jerry Edward Carstens System comprising thong-shaped holder and absorbent article
US8454570B2 (en) 2005-05-23 2013-06-04 Rusl, Llc System comprising thong-shaped holder and absorbent article
US7846145B2 (en) 2005-11-08 2010-12-07 Rusl, Llc Body conforming textile holder and absorbent article
US8099794B2 (en) 2005-12-19 2012-01-24 Rusl, Llc Body conforming textile holder for electronic device
US20120324961A1 (en) * 2010-03-23 2012-12-27 Radiante Garment, in particular a compression garment for medical use
JP2016211119A (ja) * 2015-05-12 2016-12-15 アツギ株式会社 ストッキング類とその編成方法
US9976237B2 (en) 2015-05-18 2018-05-22 Nike, Inc. Sock with heel locating features

Also Published As

Publication number Publication date
CH412173A (de) 1966-04-30
AU2299162A (en) 1964-04-09
DK120960B (da) 1971-08-09
GB959627A (en) 1964-06-03
DE1210510B (de) 1966-02-10
AU263619B2 (en) 1965-11-23

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