Manufacture of knitted brief blanks

D - Textiles – Paper – 04 – B

Patent

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Details

D04B 9/42 (2006.01) D04B 1/24 (2006.01) D04B 39/00 (2006.01)

Patent

CA 2170743

A method of knitting side-by-side brief blanks (BLK,BLK') in the form of a tube (T) on an electronically controlled circular knitting machine wherein the tube (T) is shaped by needle selection (50) between the brief blanks (BLK,BLK') to form apertures (AP, AP') which provide leg openings (LO,LO') by taking out of action needles (50') which would otherwise knit yarn across the apertures (AP, AP'). At the same time yarn feed (Y2) to the inoperative needles (50') is cut (42, 44) and trapped (46) whereby the apertures (AP, AP') are formed. End portions of the blanks (BLK,BLK') remain interconnected until the tube (T) is slit walewise to provide separate blanks (BLK,BLK') for making up briefs. Since yarn is not knitted across the apertures (AP, AP'), a considerable saving in the use of yarn is effected whilst shaping of leg openings (LO,LO') is facilitated.

L'invention se rapporte à un procédé de tricotage d'ébauches de slips placées bord à bord (BLK, BLK') se présentant sous forme d'un tube (T) réalisé sur une machine à tricoter circulaire à commande électronique. Le tube (T) est mis en forme à l'aide d'une série d'aiguilles (50) placée entre les ébauchess des slips (BLK, BLK') afin de former des ouvertures (AP, AP') qui forment les ouvertures des jambes (LO, LO') que l'on obtient en stoppant l'action des aiguilles (50') qui sinon tricoteraient le fil dans les ouvertures (AP, AP'). Au même moment, l'alimentation en fil (Y2) des aiguilles à l'arrêt (50') est coupée (42, 44) et immobilisée (46) ce qui permet de former les ouvertures (AP, AP'). Les parties terminales des ébauches (BLK, BLK') restent raccordées entre elles jusqu'à ce que le tube (T) soit fendu sur la longueur de la colonne de mailles afin d'obtenir des ébauches séparées (BLK, BLK') en vue de constituer les slips. Puisque le fil n'est pas tricoté dans les ouvertures (AP, AP'), on réalise ainsi une économie considérable de fil lors de l'utilisation et la formation des ouvertures des jambes (LO, LO') est facilitée.

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