EP0456186A1 - Verbessertes Verfahren zur Herstellung von Socken an Strickmaschinen und damit erhaltenes Halbprodukt - Google Patents

Verbessertes Verfahren zur Herstellung von Socken an Strickmaschinen und damit erhaltenes Halbprodukt Download PDF

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Publication number
EP0456186A1
EP0456186A1 EP91107401A EP91107401A EP0456186A1 EP 0456186 A1 EP0456186 A1 EP 0456186A1 EP 91107401 A EP91107401 A EP 91107401A EP 91107401 A EP91107401 A EP 91107401A EP 0456186 A1 EP0456186 A1 EP 0456186A1
Authority
EP
European Patent Office
Prior art keywords
knitting
thread
knitted
respect
rows
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.)
Granted
Application number
EP91107401A
Other languages
English (en)
French (fr)
Other versions
EP0456186B1 (de
Inventor
Giancarlo Pozzi
Pietro Betella
Sergio Salvetti
Claudio Metelli
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.)
CALBREV S.R.L.
Conti Complett SpA
Original Assignee
CALBREV Srl
Conti Complett SpA
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Filing date
Publication date
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Publication of EP0456186A1 publication Critical patent/EP0456186A1/de
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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
    • D04B1/22—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
    • 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
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D04B1/106—Patterned fabrics or articles with stitch pattern at a selvedge, e.g. hems or turned welts

Definitions

  • the present invention relates to an improved process for manufacturing socks with hosiery machines and to a semiworked item obtained with said process.
  • cotton or wool socks in particular for men, are currently generally manufactured on circular knitting machines which provide a semiworked product, open at the tip, which requires a subsequent finishing operation, by means of which the toe or tip is closed, in order to produce sock.
  • This finishing operation is notoriously considered to be very important by sock manufacturers, since it largely determines the quality of the finished product.
  • the tips of socks can be closed by linking or by means of mechanical sewing termed "blind” sewing.
  • the linking operation is performed on appropriate machines and requires the manual placement of each individual loop, at the opening of the tip, on appropriate pins of the machine which are then affected by an extremely precise sewing so as to mutually join the various loops.
  • Blind mechanical sewing is much easier and rapid to perform, since it does not require the placement of each individual loop of the open tip of the sock but a less precise positioning of the sock, which is then subjected to one or more sewing operations.
  • the best-finished and most desirable socks are obtained by linking, especially due to the better finishing in the sewing region, which is scarcely detectable to the touch and, when the sock is worn, produces no unpleasant feelings, but is also advantageous from an aesthetic point of view since it has its own perfection of opposite threads sewn together in a harmonious and symmetrical manner, so much that linking can be visually recognized even apart from the tactile effect.
  • the open tip is ended with a raw of knitting with longer loops with respect to the preceding row.
  • Such row may be reinforced and is followed by a knitted trim which has a density substantially equal to that of the previously formed tip and is used exclusively for guiding during linking and is cut once linking is completed.
  • the open tip is ended with a portion of knitting generally constituted by 4-5 rows, for a total length of 5 mm, of a polyamide thread which has a certain elasticity (such as for example helanca or Lycra) with tight knitting, followed by a knitted trim as in the preceding case.
  • a polyamide thread which has a certain elasticity (such as for example helanca or Lycra) with tight knitting, followed by a knitted trim as in the preceding case.
  • the aim of the present invention is to solve the above described problem by providing a process which allows to manufacture an open-tip sock which can be finished by mechanical blind sewing, whereby to obtain a finished sock which has, both aesthetically and to the touch, characteristics which are similar to those of socks finished by linking.
  • an object of the invention is to provide a process which is simple to carry out on both rectilinear and circular knitting machines.
  • Another object of the invention is to provide a process which allows extremely precise blind sewing during finishing.
  • a first portion of knitting 4 constituted by a few rows for an overall length of approximately 5 mm, is knitted with a thin and elastic thread, generally made of polyamide fiber, and a second portion of knitting 5 is knitted thereafter with a thicker thread.
  • Said second portion of knitting 5 acts as guiding trim during the positioning of the sock on the sewing machine and during the sewing operation, but does not safely avoid the possibility of movements of the sewing point within the first portion of knitting 4, with consequent deformations of the sewing line which is very often non-rectilinear, with thickenings of said sewing.
  • a row of knitting 4a formed by loops with increased length with respect to the previously formed tip loops, is knitted, and a portion of knitting 5a with a stitch density similar to that of the tip 3a is then knitted.
  • each loop of the row of knitting 4a is fitted manually on a pin of the pin-holder ring of a linking machine.
  • the portion of knitting 5a simplifies this operation.
  • a row of knitting 13 with loops of increased length with respect to the previously knitted rows of the tip 12 is knitted; then a first portion of knitting 14, constituted by a few rows of knitting formed with a thinner thread with respect to the thread used for the row 13, is knitted, and a second portion of knitting 15 is finally knitted using a thicker thread with respect to the thread used to knit the first portion of knitting 14.
  • the row 13 is knitted with the addition of a reinforcement thread by feeding the needles of the machine with two threads simultaneously in a per se known manner.
  • the first portion of knitting 14 is preferably knitted with a helanca or Lycra polyamide thread so as to obtain a portion of knitting which has a reduced thickness and a certain elasticity.
  • Said portion of knitting 14 is expediently constituted by approximately six rows of knitting.
  • the second portion of knitting 15 has an overall length of approximately 1 cm and is preferably knitted using a low-cost thread, since it is to be eliminated after finishing.
  • the process according to the invention can be easily performed on a known circular machine simply by setting said machine so that, after knitting the actual tip, it knits a row of knitting 13 with reduced stitch density, i.e. with longer loops. While this row of knitting is being knitted, an additional thread guide is activated simultaneously and feeds the reinforcement thread to the needles. These operations are easy to perform by modifying the actuation program of modern circular knitting machines.
  • the machine In order to knit the first portion of knitting 14 and the second portion of knitting 15, the machine is actuated as during the known preparation of the sock for mechanical blind sewing, described with reference to figure 1.
  • the first portion of knitting 14 besides having a certain elasticity, has a reduced thickness with respect to the row of knitting 13 and to the second portion of knitting 15. Due to this fact, the first portion of knitting 14 can be rapidly and precisely positioned on the grip elements, generally clamps, with which blind sewing machines are provided. In practice, the jaws of a clamp engage the first portion of knitting 14 and the sock remains arranged correctly during sewing with no possibility of accidental movements, since the row 13 and the second portion of knitting 15 act as opposite shoulders by resting against the closed jaws of the clamp.
  • the process according to the invention has been performed on a Lonati Goal model 362 single-cylinder circular knitting machine preset for blind mechanical sewing preparation.
  • the stitch density is changed at the end of the forming of the actual tip so as to knit a row of knitting with reduced density with respect to the stitch density used in forming the actual tip, and an additional thread guide is simultaneously moved to knit so as to obtain a row of knitting with longer loops reinforced by the addition of a thread.
  • the thread guides which fed the thread for forming the sock are then excluded from knitting, and thread guides which feed a helanca or Lycra thread are moved to knit so as to form consecutive rows of knitting, e.g., six rows.
  • a further exchange of the thread guides is subsequently performed so as to exclude from the knitting the thread guides which bear the helanca or Lycra thread and move back into knitting the thread of guides bearing the same thread used to form the sock or a less valuable thread so as to form the second portion of knitting 15 for an overall length of approximately 1 cm of said portion.
  • the sock thus prepared is inserted on a conventional sewing machine which performs blind sewing, and sewing with two passes in line is performed; the first sewing is performed with two 20/2 helanca threads at 28 stitches per 2.54 cm (28 stitches per inch), whereas the second sewing occurs with an 80/2 cotton thread and a 20/2 helanca thread at 20 stitches per 2.54 cm (20 stitches per inch).
  • the materials employed may be any according to the requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Of Fabric (AREA)
  • Knitting Machines (AREA)
EP91107401A 1990-05-10 1991-05-07 Verbessertes Verfahren zur Herstellung von Socken an Strickmaschinen und damit erhaltenes Halbprodukt Expired - Lifetime EP0456186B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2025990 1990-05-10
IT20259A IT1239964B (it) 1990-05-10 1990-05-10 Procedimento perfezionato di preparazione per la cucitura della punta di calze ottenute con macchine circolari

Publications (2)

Publication Number Publication Date
EP0456186A1 true EP0456186A1 (de) 1991-11-13
EP0456186B1 EP0456186B1 (de) 1996-01-17

Family

ID=11165222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107401A Expired - Lifetime EP0456186B1 (de) 1990-05-10 1991-05-07 Verbessertes Verfahren zur Herstellung von Socken an Strickmaschinen und damit erhaltenes Halbprodukt

Country Status (6)

Country Link
EP (1) EP0456186B1 (de)
AT (1) ATE133212T1 (de)
BR (1) BR9101910A (de)
DE (1) DE69116419T2 (de)
ES (1) ES2082035T3 (de)
IT (1) IT1239964B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015253A1 (de) * 1992-01-29 1993-08-05 Rosso Industrie S.P.A. Verfahren und vorrichtung zur vorbereitung von strümpfen für das zusammennähen der spitzen
EP0555502A1 (de) * 1992-02-13 1993-08-18 CONTI COMPLETT S.p.A. Positionierungsvorrichtung in Nähmaschinen zum Schliessen des Zehenteils von Strümpfen oder dergleichen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH135198A (fr) * 1928-07-09 1929-09-15 Scott & Williams Inc Bas tricoté et procédé pour le fabriquer.
CH173375A (de) * 1933-11-07 1934-11-30 Ferdinand Winberg Erik Verfahren zur Herstellung von Strümpfen.
US2475845A (en) * 1949-07-12 Method of knitting hosiery
US3013416A (en) * 1959-12-24 1961-12-19 Draper Corp Knitting machine and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475845A (en) * 1949-07-12 Method of knitting hosiery
CH135198A (fr) * 1928-07-09 1929-09-15 Scott & Williams Inc Bas tricoté et procédé pour le fabriquer.
CH173375A (de) * 1933-11-07 1934-11-30 Ferdinand Winberg Erik Verfahren zur Herstellung von Strümpfen.
US3013416A (en) * 1959-12-24 1961-12-19 Draper Corp Knitting machine and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015253A1 (de) * 1992-01-29 1993-08-05 Rosso Industrie S.P.A. Verfahren und vorrichtung zur vorbereitung von strümpfen für das zusammennähen der spitzen
EP0555502A1 (de) * 1992-02-13 1993-08-18 CONTI COMPLETT S.p.A. Positionierungsvorrichtung in Nähmaschinen zum Schliessen des Zehenteils von Strümpfen oder dergleichen

Also Published As

Publication number Publication date
DE69116419T2 (de) 1996-09-05
IT1239964B (it) 1993-11-27
EP0456186B1 (de) 1996-01-17
IT9020259A0 (it) 1990-05-10
ES2082035T3 (es) 1996-03-16
IT9020259A1 (it) 1991-11-10
BR9101910A (pt) 1991-12-17
DE69116419D1 (de) 1996-02-29
ATE133212T1 (de) 1996-02-15

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