EP 4283028 A1 20231129 - SPOOL, YARN TWISTING PROCESS AND YARN TWISTING MACHINE
Title (en)
SPOOL, YARN TWISTING PROCESS AND YARN TWISTING MACHINE
Title (de)
SPULE, GARNZWIRNVERFAHREN UND GARNZWIRNMASCHINE
Title (fr)
BOBINE, PROCÉDÉ DE RETORDAGE DE FIL ET MACHINE DE RETORDAGE DE FIL
Publication
Application
Priority
- ES 202130050 A 20210122
- ES 2021070904 W 20211217
Abstract (en)
A spool of yarn of natural, synthetic or artificial textile fibres, with the torsion value of the plied yarn (α) throughout the spool (1) being variable, and being associated with the instantaneous winding/unwinding diameter (DI) of the spool (1), equal to α (tpm) = 1/ (DI * π) such that, on unwinding the yarn as twisted in a first direction N-S, the torsion value of the yarn, once unwound as twisted (β) is constant throughout the spool and is essentially equivalent to 0 tpm, and such that, on unwinding the yarn as twisted in a second direction S-N, opposite to the first direction, the torsion value of the yarn, once unwound as twisted (β), is variable throughout the spool and is equivalent to β' (tpm) = 2/ (DI * π). Process for the generation of the spool disclosed, and yarn twisting machine for the generation of the spool disclosed.
IPC 8 full level
D01H 1/24 (2006.01); D01H 1/02 (2006.01); D01H 1/34 (2006.01); D01H 13/32 (2006.01)
CPC (source: EP ES US)
D01H 1/02 (2013.01 - EP ES US); D01H 1/24 (2013.01 - ES); D01H 1/34 (2013.01 - ES); D01H 7/86 (2013.01 - EP US); D01H 13/32 (2013.01 - ES); D02G 3/26 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4283028 A1 20231129; CN 116783340 A 20230919; ES 2831417 A1 20210608; ES 2831417 B2 20211013; US 2024167198 A1 20240523; WO 2022157399 A1 20220728
DOCDB simple family (application)
EP 21920896 A 20211217; CN 202180091418 A 20211217; ES 2021070904 W 20211217; ES 202130050 A 20210122; US 202118272653 A 20211217