US2771759A - Textile product and method - Google Patents

Textile product and method Download PDF

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Publication number
US2771759A
US2771759A US447600A US44760054A US2771759A US 2771759 A US2771759 A US 2771759A US 447600 A US447600 A US 447600A US 44760054 A US44760054 A US 44760054A US 2771759 A US2771759 A US 2771759A
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Prior art keywords
yarn
yarns
hose
nylon
twist
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US447600A
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English (en)
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William J Leath
Jr Frank E Bobo
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Patentex Inc
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Patentex Inc
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Priority to US447600A priority Critical patent/US2771759A/en
Priority to US45376154 priority patent/US2711627A/en
Priority to US453783A priority patent/US2778187A/en
Priority to FR1120302D priority patent/FR1120302A/fr
Priority to NL195357A priority patent/NL114023C/xx
Priority to BE537033D priority patent/BE537033A/xx
Application granted granted Critical
Publication of US2771759A publication Critical patent/US2771759A/en
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B11/00—Hosiery; Panti-hose
    • 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
    • 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

Definitions

  • This'invention relates to textile products and meth ods and more particularly to the production of yarns having different twists and tendencies to untwist in opposite directions and the knitting of these yarns separately and in opposing relationship to provide a balanced knitted fabric having substantial stretchability.
  • This fabric may be knitted so as to form ladies full fashion or seamless hose, or may be knitted or woven to produce ladies underwear or other garments where stretchability of the garment is desirable.
  • One of the important features of the knitted fabric manufactured from this yarn is the balanced or relaxed construction that avoids puckering or uneven contraction along the length or width of the fabric, thereby enabling it to lie flat and undistorted so that the hose or other garment made therefrom will assume its usual shape and desired appearance and will differ only in size and stretchability from the same garment knitted in conventional fashion.
  • An advantageous feature of the ladies hose made in accordance with this invention is the sheerness or diaphanous character of the hose that results from knitting of separate, unplied low denier yarn ends.
  • a characteristic feature of the yarn of the present invention is a wildness or liveliness, i. e., a tendency to twist or form loops, which is induced in the yarn by certain twisting and heat-setting operations.
  • This liveliness or-wildness in the yarn does not produce.
  • the liveliness does require temporary restraining of the yarn to permit knitting or weaving of the yarn in single ends to produce a sheer knitted fabric for ladies hosiery, panties, etc.
  • This temporary control of theyarn, required for knitting or weaving operations, may be effected by temporarily plying with the twisted; lively yarn, a different type of untwisted yarn that will exert atent 2,771,759 Patented Nov. 27, 1956 ice 2 arestraining effect on the wildness of the twisted yarn, so that it can :be managed satisfactorily in the knitting machine or loom.
  • a presently preferred restraining type of yarn for temporarily holding the twisted yarn is silk, particularly because of its adaptability for knitting with thesame machinesand equipment used for knitting the twisted, main yarn. Also the silk is further adapted for removal after the knitting operation by dissolving with a suitable chemical such as, for example, caustic soda.
  • a suitable chemical such as, for example, caustic soda.
  • suitable chemicals e. g, acetone or acetic acid
  • nylon yarn is the logical choice at presentbecause of its technical characteristics andcommercial availability
  • other synthetic yarns for example those'known in the trade as Dacron (a condensation polymer of terephthalic acid and ethylene glycol) and Dynel (a polymer of 'vinyl chloride and acrylonitrile), might be .used, as well as other suitable synthetic or natural fiber yarns.
  • Dacron condensation polymer of terephthalic acid and ethylene glycol
  • Dynel a polymer of 'vinyl chloride and acrylonitrile
  • the above-mentioned prior art types of ladies stretchable hose are produced from multifilament nylon yarns, and this is considered essential in view of the high twist to which those yarns are subjected, i. e., approximately 1-20 turns.
  • This high order of twist in .one direction, followed by an equal or greater number of twists in the opposite direction produces the above-mentioned multiplicity of small coils in the multifilament yarn.
  • This coiled structure, as well as the extreme. wildness of the yarn so produced requires plyingoftwo ends of this yarn having opposite twists, so that the series of coils in one yarn end meshes or entwines with the series of coils in the other yarn end of opposite twist.
  • one twist neutralizes orofisets the other twist and thereby produces a relaxed, double, plied yarn having stretchability but nevertheless beinglsubject to the disadvantages of causing puckering, deformation, and nonsheerness in the knitted fabric.
  • the yarn and twisting methods of the present invention are not limited to multifilament y-arns, but employ equally as well the monofilament types of yarns.
  • ladies sheer nylon hose of the most popular type today can be knitted from 15 denier monofilament nylon yarn that has been subjected to the; desired twisting and setting operations and. plied with a silk or other temporary restraining yarn.
  • These operations comprise, generally, a first twisting ofone endof the nylon yarn, multifilament or monofilament, in one direction, say to the right, so as toprovide an S twist, then heating to a temperature sufiicient to set the yarn and which temperature will be higher than all subsequently encountered tem-,
  • twists applied a typical range being 20 to 50 turns twist.
  • the twisted yarn will possess a substantial liveliness or wildness sufficient to form a stretchable fabric, upon plying with a temporary restraining yarn and knitting or weaving.
  • subsequent high temperature treatments of the twisted yarn or fabric produced therefrom such as normally occur in the manufacture of full fashioned hoisery, would substantially remove the lively characteristics and stretchability of the yarn or fabric because of the fact that the yarn at this stage, immediately after the first twisting, has not been set with heat.
  • it is important in carrying out the method of this invention to incorporate a heat-setting of the nylon yarn at an appropriate point and to have this heat-setting operation carried out at artemperature appreciably higher than any subsequently encountered temperature.
  • this heat-setting treatment may be carried out after the first twisting operation and prior to the second or backtwisting operation and, in fact, this is the presently preferred procedure.
  • worthwhile benefits may be obtained from the method of this invention when carried out as described above except for changing the time or point in the process of the heat-setting operation. For example, we have produced yarn having substantial stretchability and produced ladies full fashioned hose therefrom, in which the heat treating operation was applied to the yarn prior to twisting of the: yarn. In this modification, no second or reverse twisting of the yarn is required; only the initial heat treating, followed by twisting the desired number of turns such as, for example, about 50 turns.
  • the twisted yarn In the manufacture of nylon full fashioned hoisery, the twisted yarn would usually be heat-set at a temperature of about 270 F. for a suflicient length of time, e. g., one half hour, to effect the desired heat-setting.
  • This heat-setting temperature could be higher if desired, but the important point is the use of a temperature sufiiciently higher than the subsequent processing temperatures to avoid damaging effects of the latter.
  • the subsequent processing temperatures encountered in the dyeing and finishing operations are in the order of 250 F. or about 20 lower than the above-mentioned 270 F. heat-setting temperature, which is found to be a safe margin, If the subsequent temperature equals or exceeds the previous heatsetting temperature, the twist effect in the yarn will be substantially completely lost.
  • twisting and heatsetting operations of this invention Another important feature of the twisting and heatsetting operations of this invention is that of twisting the yarn adequately following the first twisting and heatsetting operations, because the heat-setting operation substantially removes or neutralizes the liveliness imparted to the yarn by the first twisting operation.
  • the yarn, after heat-setting requires further twisting to effect the desired liveliness.
  • the amount of twisting employed after heat-setting will depend upon the desired degree of liveliness or stretchability desired in the yarn or fabric made therefrom.
  • This twisting after heat-setting may vary substantially as to the number of twists and may be of the order of the first twisting operation described above prior to heat-setting. In other words, a typical number of twists for this second twisting operation would be 30 to 50 turns or higher.
  • the second twisting operation usually it is desirable to employ a somewhat higher number of twists in the second twisting operation than in the original twisting operation.
  • the second twisting operation after heat-setting, might be in the order of 50 to 60 turns.
  • a twist that is opposite in direction to the original twist i. e., a Z twist for the second twisting operation where an S twist has been employed in the original twisting operation.
  • a reverse or back twist of this type after heat-setting, will increase desirably the liveliness in the yarn as compared to a continuation of twist in the same direction as the original twist. Furthermore, the strength and other physical properties of the yarn will be better maintained by use of a reverse or back twist for the second twisting operation.
  • the twisted nylon yarn is plied with the restraining yarn by twisting the two yarns together for a relatively few turns, such as, for example, 5 to 20 turns.
  • a higher number of turns twist for this plying operation could be employed if it is desired, although it is not usually necessary.
  • the plying twist is usually in the direction of the original twist and therefore opposite to the direction of the twist after heatsetting.
  • twisting and heat-setting operations described generally above which we have employed satisfactorily in the production of yarn for knitting ladies sheer nylon stretchable hose, are as follows:
  • One end of monofilament nylon yarn is twisted 30 turns per inch in a Z or left twist direction. Another end of the same nylon yarn is twisted 30 turns per inch in an S or right twist direction.
  • These two separately twisted nylon yarns are subjected to treatment with live steam in suitable equipment such as a pressure or vacuum retort and at a temperature of approximately265" F.- 270" F. for a suflicient length of time to effect proper penetration.
  • the yarn is transferred to twister bobbins and twisted 37 turns in the opposite direction of the original twist.
  • the yarn is very lively or wild and could not be satisfactorily knitted in this condition, and it is therefore plied with the silk yarn as above mentioned, the details of which are as follows:
  • This plying of the nylon and silk yarns may be carried out in one or more stages on conventional twist of in pairs.
  • Thissilk will usually-be.treatedmrionto plying with conventional silk soakingtreatment, followed by drying and skein winding. .A1so,.it isnotnecessary to impart any twist to the silk yarn.
  • the yarn which has a final S twist is used for knitting one or several courses and the yarn. that has the opposite or Z twist is used for knitting the next adjacent course or several courses.
  • the courses of yarn that tend to untwist to the left are counterbalanced to some extent by the-adjacent courses of yarn that tend to untwist to the right, and this results in the balanced knitted.
  • fabric or structure mentioned above'when' these alternating courses recur'throughout the'length of the fabric, such as the length of a knitted full fashioned ladies hose.
  • the knitting operation may be. carried out on conventional knitting machines of the full-fashioned hosiery .type, and the separate left and right twisted, yarns (plied paired arrangement is best suited for the usual types of full fashioned knitting machines, but it .is .to be understood that the courses may be alternated singly. instead On the otherhand, a greater .number of courses, such as 4 or 6 courses, of yarn-of one twist'may be alternated With a similar number of courses-of yarn oflthe opposite twist.
  • the fabric formedin this manner has sufficient distortion or liveliness in the individualstitches-or loops to impart substantial stretchability.
  • a ladys hose composed of the fabric of this invention can be stretched as much as 50% to 100% or more of its original length without permanent deformation of the stitches or loops, and has the property of contracting to'substantially.
  • the present-day sheer type. of ladiesfihose normally uses nylon yarn of not greater than.-30.denier andthe yarn most commonly usedis l denier nylon..yarn,..although 12 denierand 10. denier nylon yarnsare available ,and these yarns or even lower denier yarns maybeem- 6 ployedin producing ladies sheer hosiery in accordance withnhisinvention.
  • hoseknitted with substantiallyhigherdenier yarns, such as 7.0 denier orhigher, and which are known inthe trade as -service weight hose maylikewise be knitted from the stretchable yarn of thisinvention.
  • Fig. 2 is an elevational view of the same hose-shown .in Fig. 1, but stretched over a foot and leg form;
  • Fig. 3 isan enlarged fragmentary view of a small piece of hosiery fabric knitted from 15 denier monofilament nylon yarn in accordance withthis invention .andsin except stretched to the extent normally encountered in wearing, as indicated in Fig. 2;.and,
  • Fig. 8 is an enlarged fragmentary'view of a small piece of knitted hosiery fabric as illustrated in- Fig. 7 but substantially fully stretched.
  • the full fashioned hose shown in the .photomicrograph identified as Fig. l comprisesthe usual sheer leg portion, which inthis instance .is made from 15 denier monofilament nylon yarn.
  • the hose also has the usual reinforced areas consisting of the welt'at the-top of :the-hose and the reinforced-foot.
  • the yarn used intheserreinforced areas may advantageously be thetype of stretchable yarnmade in accordance Withthis invention, although, if desired, conventional nylon yarn, as for example, 30 denier or higher, could be used in reinforcing the welt and foot portions of the hose.
  • the foot portion of the hose will contain the same stretchable nylon yarn used for knitting the leg portion of the hose and, in addition, the added reinforcing nylon yarn if such is desired.
  • a still further important feature of the full fashioned hose made in accordance with this invention is the fact that the seam, once placed properly on the leg of the wearer, will tend to remain in this proper position. This minimizes the well-known problem of crooked seams encountered with conventional hose.
  • the stretchable character of the foot and heel portion of this hose enables the wearer to adjust the heel height within conventional limits, as desired by the wearer.
  • the stretchable character of the hose of this invention permits manufacture of the hose in a very to the average foot and leg size of a wearer and illustrates the neat, snug fit of the hose of this invention.
  • this same hose can be stretched to a substantially greater length than that illustrated in Fig. 2 where desired to accommodate varying leg lengths as well as foot and leg sizes.
  • the hose will still provide a good fit when stretched to a substantially lesser degree than that indicated in Fig. 2.
  • the photomicrograph shown in Fig. 3 illustrates a small piece or fragment of the sheer knitted fabric made from 15 denier monofilament nylon yarn in accordance with this invention and of the type used in production of the full fashioned hose illustrated in Figs. 1 and 2 above.
  • the fabric fragment shown in Fig. 3 is in substantially relaxed or unstretched condition such as would occur in the finished hose when laid out flat as illustrated in Fig. 1 above.
  • the loops composing this knitted fabric are distorted and lie in different planes, some loops being shown in back of other loops or at different angles so as to give the fabric somewhat of a third dimension.
  • the loops in the front or nearest the surface photographed are more sharply in focus than the loops located behind or at another angle, these latter loops appearing somewhat fuzzy or not as sharply defined as the loops nearest the surface photographed.
  • the fabric shown in Fig. 4 is of the exact same type as shown in Fig. 3 and was cut from the same sample, but, as. distinct from the fabric in Fig.3, this fragment '8 of the fabric in Fig. 4 has been stretched to a certain degree.
  • the amount of stretch in this particular example corresponds generally with the amount of stretch that would normally occur in wearing of a hose composed of this fabric and stretched over the leg of the wearer or over a form such as is illustrated in Fig. 2.
  • Fig. 3 it will be noted that the random disposition, distortion and wildness that fundamentally characterizes the fabric in Fig. 3 has been removed to a substantial extent by this limited degree of stretching.
  • the knitted loops have been straightened out or oriented toward a more normal arrangement, but are still somewhat distorted and, as will be noted from the pale lines in Fig. 4, some of the loops are still out of focus and are located in a different plane from other loops which appear in sharp focus in this figure. In other words, there is'still some liveliness or stretchability remaining in the fabric at this stage of stretching.
  • Fig. 5 which shows again the same type of fabric as is illustrated in Figs. 3 and 4 but in which the fabric has now been stretched substantially to the maximum extent permissible
  • Fig. 5 shows again the same type of fabric as is illustrated in Figs. 3 and 4 but in which the fabric has now been stretched substantially to the maximum extent permissible
  • the courses of loops extending widthwise across the fabric are arranged in pairs, that is, two courses of loops oriented slightly to the right and the next two courses of loops showing a tendency to twist slightly to the left.
  • This alternate arrangement of left and right twisted pairs of courses extends throughout the length of the fabric, and this would be true likewise of the hose or other garment formed from this type of fabric.
  • Figs. 6, 7 and 8 there is illustrated a series of fabrics in different degrees of stretchability, comparable to the fabrics in Figs. 3, 4 and 5 and described above.
  • the principal difference between the fabric illustrated in these latter Figures 6, 7 and 8, is the use therein of 30 denier multifilament nylon yarn instead of the 15 denier monofilament yarn used in the fabric in Figs. 3, 4 and 5.
  • the 30 denier multifilament nylon fabric shows in Fig. 6 a wild or random disposition of the loops when the fabric is relaxed or unstretched, a more orderly arrangement of the loops when the fabric is partially stretched as shown in Fig. 7, and finally a substantially symmetrical arrangement of the loops as illustrated in Fig. 8.
  • the fabric in Fig. 8 is characterized by the alternate paired arrangement of courses of left and right twists widthwise of the fabric, and this alternation of courses recurs throughout the length of the fabric as it would in the product produced therefrom.
  • a stretchable, retractable stocking which is substantially shorter in length than conventional stockings when relaxed, and is stretchable to correspond to various stocking sizes, said stocking being comprised of alternating courses of oppositely twisted synthetic resin yarns having permanent substantial liveliness such that the yarns will snarl when in relaxed condition and cause the stitches comprising the alternating courses in the stocking to 9 incline markedly in opposite directions and thereby subs't'antially shorten the stocking when relaxed, and said inclined stitches being adapted to be straightened and the stocking thereby lengthened when the stocking is stretched longitudinally.
  • a stretchable, retractable stocking as defined in claim 1, and in which the yarns are monofilament yarns.
  • a stretchable, retractable stocking as defined in claim 1, and in which the yarns are monofilament nylon yarns.
  • a stretchable, retractable stocking which is substantially shorter in length than conventional stockings when relaxed, and is stretchable to correspond to various stocking sizes, said stocking being comprised of alternating courses of synthetic resin yarns having opposite torque and permanent substantial liveliness such that the yarns will snarl when in relaxed condition and cause the stitches comprising the alternating courses in the stocking to incline markedly in opposite directions and thereby substantially shorten the stocking when relaxed, and said inclined stitches being adapted to be straightened and the stocking thereby lengthened when the stocking is stretched longitudinally.
  • a stretchable, retractable fabric which is substantially smaller when relaxed than when stretched and adapted to be stretched at least fifty percent (50%) of its relaxed size and to retract to its original size when relaxed, said fabric being comprised of alternating courses of oppositely twisted synthetic resin yarns having permanent substantial liveliness such that the yarns will snarl when in relaxed condition and cause the stitches comprising the alternating courses in the fabric to incline markedly in opposite directions, and thereby substantially contract the fabric when relaxed, said inclined stitches being adapted to be straightened and the fabric thereby enlarged when it is stretched. 10.
  • a method of producing a stretchable, retractable stocking from separate, single synthetic resin yarns comprising thermosetting said yarns to stabilize them against the effects of subsequently encountered temperatures, then twisting said yarns in opposite directions and to an extent sufiicient to produce marked liveliness in the yarns, temporarily subduing the liveliness of the yarns, and knitting them in alternating courses.
  • a method of producing ladies sheer stretchable nylon hose comprising twisting separate monofilament nylon yarns in opposite directions, heat-setting the twist in these yarns to stabilize the twisted yarns against the effects of subsequently encountered temperatures, then twisting the yarns in directions opposite to the original 10 twists and to an extent sufiicient to produce marked liveliness in the yarn, temporarily subduing the liveliness of the yarns, and knitting them in alternating courses.
  • a method of producing a stretchable, retractable stocking which is substantially shorter in length than conventional stockings when relaxed, and is stretchable to correspond to various stocking sizes comprising thermosetting and then twisting separate single, synthetic resin yarns in opposite directions and toan extent sufiicient to produce substantial liveliness in the. yarns such that the yarns will snarl when relaxed, knitting said oppositely twisted lively yarns in alternating courses throughout the stocking while controlling the liveliness of the yarn to prevent snarling, and to cause the stitches comprising the alternating courses in the stocking to incline markedly in opposite directions and thereby substantially shorten the stocking when relaxed, and which stitches are adapted to be straightened. and the stockingthereby lengthened when the stocking is stretched longitudinally.
  • a method of producing ladies stretchable nylon hose comprising twisting a single end of nylon yarn in one direction, heat treating the twisted yarn at a temperature in excess of any subsequent processing temperature to which the yarn will be subjected, backtwi-sting the heat treated yarn in the opposite direction and to an extent suflicicnt to produce marked liveliness in the yarn, twisting another single end of nylon yarn in a direction opposite to that in which said first-mentioned nylon yarn was twisted, heat treating this second twisted'nylon yarn at a temperature in excess of any temperatures to which it will be subsequently subjected, then backtwisting this second nylon yarn in a direction opposite to its original twist and to an extent sufficient to produce marked liveliness in the yarn, temporarily subduing the liveliness of the yarns, and knitting them in alternating courses.
  • a method of producing ladies sheer stretchable nylon hose comprising twisting separate monofilament nylon yarns in opposite directions a suflicient number of turns to impart substantial liveliness to the yarns, heatsetting the thus twisted yarns to stabilize the yarns against the effects of subsequently encountered temperatures, then twisting the heat-set yarns in directions opposite to the directions of the first twist and to an extent sufficient to produce marked liveliness in the yarns, temporarily subduing the liveliness of the yarns, and knitting them in alternating courses.
  • a method of producing ladies sheer stretchable nylon hose comprising twisting one end of monofilament nylon yarn approximately thirty turns per inch in one direction, twisting another end of said nylon yarn approximately thirty turns per inch in the opposite direction, subjecting these twisted yarns to treatment with live steam at approximately 265 F., then separately twisting these yarns approximately thirty-seven turns per inch in the opposite direction to that of the original twist to produce marked liveliness in the yarns, temporarily subduing the liveliness of the yarns, and knitting them in alternating courses.
  • a method of producing ladies hose which comprises twisting and setting separate nylon yarns in opposite directions and in a degree such that the yarns when free will not maintain a straight disposition, plying each of said yarns with a temporary yarn by which said yarns are held straight and which temporary yarn is capable of being removed by chemical action, knitting said oppositely twisted yarns in separate courses to form the knit fabric of said hose and removing said temporary yarn.
  • a method of producing ladies hose which cornprises plying each of separate oppositely twisted nylon yarns, of such wildness that the yarns when free will not maintain a straight disposition, with a temporary yarn by which said yarns are held straight and which temporary yarn is capable of being removed by chemical action, knitting said plied yarns in separate courses to form the knit fabric for said hose, and removing said temporary yarn.
  • a method of producing ladies stretchable sheer nylon hose comprising twisting separate single nylon yarns in opposite directions, preheating of the separately twisted yarns to stabilize the yarns against the etfects of elevated temperatures encountered in subsequent operations, plying each of the separately twisted yarns with a yarn that temporarily offsets the wildness produced in the yarn by the twisting operation and which temporary yarn is capable of being removed by chemical action, knitting the two separately twisted plied yarns in alternate courses to form the hose, dissolving the temporary yarn and dyeing and finishing the hose.
  • a method of producing ladies stretchable nylon hose comprising twisting a single end of nylon yarn in one direction, heat treating the twisted yarn at a temperature in excess of any subsequent processing temperature to which the yarn will be subjected, backtwisting the-heat treated yarn in the opposite direction, twisting another single end of nylon yarn in a direction opposite to that in which said first-mentioned nylon yarn was twisted, heat treating this second twisted nylon yarn at a temperature in excess of any temperatures to which it will be subsequently subjected, then backtwisting this second nylon yarn in a direction opposite to its original twist, separately plying each of these twisted nylon yarns with a silk yarn to enable handling of the yarns, knitting these two separately plied twisted nylon and silk yarns to form ladies sheer hose, treating the hose with a chemical to efiect removal of the silk yarn, followed by dyeing and finishing the hose.
  • a method of producing ladies stretchable sheer nylon hose the steps of separately twisting nylon yarns in one direction, thermosetting the separately twisted nylon yarns by heating to a temperature of at least 250 F., separately twisting the heat treated yarns in directions opposite to the directions of the original twist to provide stretchy resilient nylon yarns having opposite twists, separately plying these nylon yarns with silk yarns to offset temporarily the wild characteristics imparted to these yarns by the twisting operations, knitting the separately plied yarns in alternating courses to form sheer hose, and treating the hose with caustic soda to remove the temporary silk yarns and provide stretchy sheer nylon hose.
  • a method of producing a stretchable knitted fabric comprising twisting and setting separate single, unplied nylon yarns in opposite directions and in a degree such that the yarns when free will not maintain a straight disposition, plying each of said yarns with a temporary yarn by which said yarns are held straight and which temporary yarn is capable of being removed by chemical action, knitting said oppositely twisted yarns in separate courses to form the knit fabric and removing said temporary yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Socks And Pantyhose (AREA)
US447600A 1954-08-03 1954-08-03 Textile product and method Expired - Lifetime US2771759A (en)

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Application Number Priority Date Filing Date Title
US447600A US2771759A (en) 1954-08-03 1954-08-03 Textile product and method
US45376154 US2711627A (en) 1954-08-03 1954-09-02 Method of producing composite yarn
US453783A US2778187A (en) 1954-08-03 1954-09-02 Composite yarn
FR1120302D FR1120302A (fr) 1954-08-03 1955-03-04 Articles de bonneterie extensibles
NL195357A NL114023C (forum.php) 1954-08-03 1955-03-07
BE537033D BE537033A (forum.php) 1954-08-03 1955-04-01

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810949A (en) * 1954-12-10 1957-10-29 Archer Mills Inc Thermoplastic yarns, methods of producing same, and products knit therefrom
US3135104A (en) * 1961-04-10 1964-06-02 Burlington Industries Inc Stretch fabric and method of making the same
US3210964A (en) * 1960-12-02 1965-10-12 Kellwood Co Stretchable hosiery and the like
US3333442A (en) * 1966-02-28 1967-08-01 Wiscassett Mills Co Ladies' stretchable seamless stockings
US3364542A (en) * 1966-02-28 1968-01-23 Wiscassett Mills Co Method of forming ladies' stretchable seamless stockings
DE1585291B1 (de) * 1966-03-02 1970-11-05 Pilot Res Corp Damenstrumpf
EP0504072A1 (fr) * 1991-03-14 1992-09-16 Rhone-Poulenc Fibres Tricot élastique à aspect voile
USD772558S1 (en) * 2015-03-13 2016-11-29 E. Jane Rhodes Set of panty hose
USD933350S1 (en) * 2019-11-07 2021-10-19 Roderick Jenkins Sock

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US2584944A (en) * 1949-09-07 1952-02-05 Gotham Hosiery Company Inc Reinforced stocking
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US670880A (en) * 1899-08-19 1901-03-26 Edward Blood Knitted fabric and method of producing same.
US2095069A (en) * 1934-03-24 1937-10-05 Kugelman Jack Knitted hosiery
US2097763A (en) * 1934-05-29 1937-11-02 Berkshire Knitting Mills Knitted stocking
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GB566507A (en) * 1942-04-11 1945-01-02 Ici Ltd Improvements in or relating to the production of hosiery
US2564245A (en) * 1947-04-25 1951-08-14 Louis Antoine Billion Method for treating superpolyamide threads
US2532467A (en) * 1947-12-11 1950-12-05 Hemphill Co Method for controlling yarn
US2641914A (en) * 1948-07-19 1953-06-16 Varinyl Method of producing stockings for varicose veins
US2575008A (en) * 1949-03-16 1951-11-13 Abraham L Dorgin Method of creping nylon
US2597577A (en) * 1949-05-14 1952-05-20 Textile & Chem Res Co Ltd Rayon yarn
US2584944A (en) * 1949-09-07 1952-02-05 Gotham Hosiery Company Inc Reinforced stocking
US2585518A (en) * 1950-10-26 1952-02-12 Francois Masurel Freres Ets Process of treating synthetic yarns

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US2810949A (en) * 1954-12-10 1957-10-29 Archer Mills Inc Thermoplastic yarns, methods of producing same, and products knit therefrom
US3210964A (en) * 1960-12-02 1965-10-12 Kellwood Co Stretchable hosiery and the like
US3135104A (en) * 1961-04-10 1964-06-02 Burlington Industries Inc Stretch fabric and method of making the same
US3333442A (en) * 1966-02-28 1967-08-01 Wiscassett Mills Co Ladies' stretchable seamless stockings
US3364542A (en) * 1966-02-28 1968-01-23 Wiscassett Mills Co Method of forming ladies' stretchable seamless stockings
DE1585291B1 (de) * 1966-03-02 1970-11-05 Pilot Res Corp Damenstrumpf
DE1785521B1 (de) * 1966-03-02 1970-12-10 Pilot Res Corp Verfahren zum Herstellen von Damenstruempfen
EP0504072A1 (fr) * 1991-03-14 1992-09-16 Rhone-Poulenc Fibres Tricot élastique à aspect voile
FR2673957A1 (fr) * 1991-03-14 1992-09-18 Rhone Poulenc Fibres Tricot elastique a aspect voile.
USD772558S1 (en) * 2015-03-13 2016-11-29 E. Jane Rhodes Set of panty hose
USD933350S1 (en) * 2019-11-07 2021-10-19 Roderick Jenkins Sock

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FR1120302A (fr) 1956-07-03
BE537033A (forum.php) 1959-03-13
NL114023C (forum.php) 1968-10-15

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