Global Patent Index - EP 2019876 A1

EP 2019876 A1 2009-02-04 - PRODUCTION OF CORE YARNS

Title (en)

PRODUCTION OF CORE YARNS

Title (de)

HERSTELLEN VON SCHEINZWIRN

Title (fr)

FABRICATION DE FIL RETORS FACTICE

Publication

EP 2019876 A1 (DE)

Application

EP 07725166 A

Priority

  • EP 2007004246 W
  • DE 102006023097 A

Abstract (en)

[origin: WO2007131747A1] The invention relates to a method and a system for manufacturing core yarns, in which two fiber slivers (19) warped next to one another in a drawing frame (1) are fed to a common ring spinning system (24) after the warping process. With this method, after the warping process, the warped fiber slivers are subjected to pneumatic compacting in a compacting device (8) by being fed via a perforation track through which air is sucked into a suction shoe (10). In order to provide independent variation in the compacting processes to which the two fiber slivers (19) are subjected, and thereby create effects in the resulting core yarn, it is proposed to separate the suction shoe, using a partition (13), into two chambers (14) in which the suction force can be reduced or closed off using flow-control mechanisms.

IPC 8 full level (invention and additional information)

D02G 3/28 (2006.01); D01H 5/72 (2006.01)

CPC (invention and additional information)

D01H 5/74 (2013.01); D01H 5/26 (2013.01); D01H 5/72 (2013.01); D02G 3/367 (2013.01); D10B 2201/02 (2013.01); D10B 2211/02 (2013.01)

Citation (search report)

See references of WO 2007131747A1

Designated contracting state (EPC)

IT TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

DE 102006023097 A1 20071122; CN 101437993 A 20090520; EP 2019876 A1 20090204; WO 2007131747 A1 20071122

INPADOC legal status


2012-06-27 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20111201

2009-07-30 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2009-06-17 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): IT TR

2009-02-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081216

2009-02-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS