D01H4/00 - CPC Classification Index

ClassID:

121923 ⎘

D01H4/00 - CPC Classification

Classification description:

Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques

Sub-classes:

D01H4/02 » imparting twist by a fluid, e.g. air vortex 74
D01H4/04 » imparting twist by contact of fibres with a running surface 2
D01H4/28 » using electrostatic fields 2
D01H4/30 » Arrangements for separating slivers into fibres; Orienting or straightening fibres, {e.g. using guide-rolls} 6
D01H4/38 » Channels for feeding fibres to the yarn forming region 18
D01H4/40 » Removing running yarn from the yarn forming region, e.g. using tubes 14
D01H4/42 » Control of driving or stopping 14
D01H4/48 » Piecing arrangements; Control therefor 20

Recent Application in this class:

20220389652

2022-12-08

Textile materials containing dyed polyphenylene sulfide fibers and methods for producing the same

20180251939

2018-09-06

TEXTILE MATERIALS CONTAINING DYED POLYPHENYLENE SULFIDE FIBERS AND METHODS FOR PRODUCING THE SAME

20160002829

2016-01-07

Processes for using recycled waste cotton material in producing a textile product and textile products produced from waste cotton material

20150233888

2015-08-20

On-line detection of defects in fibrous members

20150020495

2015-01-22

Fire retardant compositions and methods and apparatuses for making the same

20140305092

2014-10-16

Yarn comprising gel-forming filaments or fibres

20120144794

2012-06-14

Fire retardant compositions and methods and apparatuses for making the same

20090220784

2009-09-03

Composite Alpaca yarn and process for making same

20080237385

2008-10-02

Method for operating a textile machine producing cross-wound bobbins