IPC 7 English version D02G !A-D02G 3/48

IPC ⁷ English version

D02-D02G00348

SECTION D – TEXTILES; PAPER

D 02

YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING

D 02 G

CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS

Note

Attention is drawn to the Note following the title of class D02.

Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics (yarns per se D02G 3/00; during formation of artificial filaments, threads, or the like D01D 5/22; general aspects of chemical treatment D06M)

by twisting, fixing the twist and backtwisting, i.e . by imparting false twist

Devices for imparting false twist

Spindles

Rollers

using knife edges, e.g. heated knife edges, for edge crimping

using stuffer boxes

using grooved rollers or gear-wheel-type members

using jets or streams of turbulent gases, e.g. air, steam

by combining fibres, filaments, or yarns, having different shrinkage characteristics

Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for (for producing crimped or curled yarns D02G 1/00)

Yarns or threads characterised by the material or by the materials from which they are made

Blended or other yarns or threads containing components made from different materials

Threads formed from strip material other than paper

Paper yarns or threads

Yarns or threads formed from collagenous materials, e.g. catgut

Threads containing metallic filaments or strips

Horse-hair threads

Yarns or threads made from mineral substances

from glass or the like

from asbestos

Yarns or threads characterised by constructional features

Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics

with characteristics dependent on the amount or direction of twist

Doubled, plied, or cabled threads

Crêped or other highly-twisted yarns or threads

Elastic yarns or threads

Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

Cored or coated yarns or threads (elastic yarns or threads D02G 3/32)

Threads in which fibres, filaments, or yarns are wound with other yarns or filaments (covering endless core threads with fibres by using open-end spinning techniques D01H 4/00)

Yarns in which fibres are united by adhesives; Impregnated yarns or threads

Chenille threads

Yarns or threads characterised by the purpose for which they are designed

Sewing-cottons or the like

Tyre cords