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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised
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CPC
COOPERATIVE PATENT CLASSIFICATION
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CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS [2013‑01]
NOTE
-
Attention is drawn to the note following the title of class D02

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D02G 1/00
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) [2013‑01]
NOTE
-
In the context of this group, the terms "texturing" or "texturising" encompass curling and crimping

D02G 1/002
.
{
by knitting, weaving or tufting, fixing and then unravelling
}
[2013‑01]
D02G 1/004
.
{
by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
}
[2013‑01]
D02G 1/006
.
{
by impinging the yarn against an uneven surface and thereby deforming it
}
[2013‑01]
D02G 1/008
.
{
with provision for imparting irregular effects to the yarn
}
[2013‑01]
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D02G 1/02
.
by twisting, fixing the twist and backtwisting, i.e. by imparting false twist [2013‑01]
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D02G 1/0206
. .
{
by false-twisting
}
[2013‑01]
D02G 1/0213
. . .
{
after drawing the yarn on the same machine
}
[2013‑01]
D02G 1/022
. . .
{
while simultaneously drawing the yarn
}
[2013‑01]
D02G 1/0226
. . .
{
multiple false-twisting
}
[2013‑01]
D02G 1/0233
. . .
{
with real twist being imparted to the yarn before or after false-twisting
}
[2013‑01]
D02G 1/024
. . .
{
with provision for imparting irregular effects to the yarn
}
[2013‑01]
D02G 1/0246
. . .
{
at least some of the filaments being simultaneously broken or cut, e.g. by stretching or abrading
}
[2013‑01]
D02G 1/0253
. . .
{
while bonding at least some of the filaments or fibres together
}
[2013‑01]
D02G 1/026
. . .
{
in the presence of a crimp finish
}
[2013‑01]
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D02G 1/0266
. . .
{
false-twisting machines
}
[2013‑01]
D02G 1/0273
. . . .
{
threading up and starting the false-twisting machine
}
[2013‑01]
D02G 1/028
. .
{
by twisting or false-twisting at least two filaments, yarns or threads, fixing the twist and separating the filaments, yarns or threads
}
[2013‑01]
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D02G 1/0286
. .
{
characterised by the use of certain filaments, fibres or yarns
}
[2013‑01]
D02G 1/0293
. . .
{
composed, at least in part, of natural fibres
}
[2013‑01]
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D02G 1/04
. .
Devices for imparting false twist [2013‑01]
D02G 1/06
. . .
Spindles [2013‑01]
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D02G 1/08
. . .
Rollers
{
or other friction causing elements
}
[2013‑01]
D02G 1/082
. . . .
{
with the periphery of at least one disc
}
[2013‑01]
D02G 1/085
. . . .
{
between crossed belts
}
[2013‑01]
D02G 1/087
. . . .
{
between the flanks of rotating discs
}
[2013‑01]
D02G 1/10
.
using knife edges, e.g. heated knife edges, for edge crimping [2013‑01]
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D02G 1/12
.
using stuffer boxes [2013‑01]
D02G 1/122
. .
{
introducing the filaments in the stuffer box by means of a fluid jet
}
[2013‑01]
D02G 1/125
. .
{
including means for monitoring or controlling yarn processing
}
[2013‑01]
D02G 1/127
. .
{
including drawing or stretching on the same machine
}
[2013‑01]
D02G 1/14
.
using grooved rollers or gear-wheel-type members [2013‑01]
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D02G 1/16
.
using jets or streams of turbulent gases, e.g. air, steam
{
(interlacing filaments D02J 1/08)
}
[2013‑01]
D02G 1/161
. .
{
yarn crimping air jets
}
[2013‑01]
D02G 1/162
. .
{
with provision for imparting irregular effects to the yarn
}
[2013‑01]
D02G 1/164
. .
{
in the presence of a liquid, e.g. a crimp finish
}
[2013‑01]
D02G 1/165
. .
{
characterised by the use of certain filaments or yarns
}
[2013‑01]
D02G 1/167
. .
{
including means for monitoring or controlling yarn processing
}
[2013‑01]
D02G 1/168
. .
{
including drawing or stretching on the same machine
}
[2013‑01]
D02G 1/18
.
by combining fibres, filaments, or yarns, having different shrinkage characteristics
{
(D02G 1/004 takes precedence)
}
[2013‑01]
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D02G 1/20
.
Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl [2013‑01]
D02G 1/205
. .
{
After-treatments for fixing crimp or curl
}
[2013‑01]
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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) [2013‑01]
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.
Yarns or threads characterised by the material or by the materials from which they are made [2013‑01]
D02G 3/025
. .
{
Yarns or threads formed from hair (horse-hair threads D02G 3/14)
}
[2013‑01]
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D02G 3/04
. .
Blended or other yarns or threads containing components made from different materials [2013‑01]
D02G 3/042
. . .
{
all components being made from natural material
}
[2013‑01]
. . .
{
all components being made from artificial or synthetic material
}
[2013‑01]
D02G 3/047
. . .
{
including aramid fibres
}
[2013‑01]
D02G 3/06
. .
Threads formed from strip material other than paper [2013‑01]
. .
Paper yarns or threads [2013‑01]
D02G 3/10
. .
Yarns or threads formed from collagenous material, e.g. catgut
{
(surgical threads or yarns A61L)
}
[2013‑01]
. .
Threads containing metallic filaments or strips [2013‑01]
D02G 3/14
. .
Horse-hair threads [2013‑01]
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. .
Yarns or threads made from mineral substances [2013‑01]
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. . .
from glass or the like [2013‑01]
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D02G 3/182
. . . .
{
the glass being present only in part of the structure
}
[2013‑01]
D02G 3/185
. . . . .
{
in the core
}
[2013‑01]
D02G 3/187
. . . . .
{
in the sheath
}
[2013‑01]
D02G 3/20
. . .
from asbestos [2013‑01]
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D02G 3/22
.
Yarns or threads characterised by constructional features,
{
e.g. blending, filament/fibre (piecing of yarns or threads D01H 15/00)
}
[2013‑01]
D02G 3/24
. .
Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics [2013‑01]
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D02G 3/26
. .
with characteristics dependent on the amount or direction of twist [2013‑01]
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. . .
Doubled, plied, or cabled threads
{
(D02G 3/32, D02G 3/36 take precedence; effect yarns D02G 3/34; details of spindles, e.g. bearings D01H 7/86)
}
[2013‑01]
. . . .
{
using one drawing frame for two slivers and twisting of the slivers to a single yarn, i.e. spin-twisting (guides having associated actuators with mutual action D01H 13/1658)
}
[2013‑01]
. . . .
{
using hollow spindles through which one yarn is running
}
[2013‑01]
. . . .
{
one yarn running over the feeding spool of another yarn
}
[2013‑01]
. . . .
{
with alternatively "S" and "Z" direction of twist, e.g. Self-twist process
}
[2013‑01]
. . . .
{
with same direction of twist, but with an amount of twist varying along the thread
}
[2013‑01]
. . .
Crêped or other highly-twisted yarns or threads [2013‑01]
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. .
Elastic yarns or threads;
{
Production of plied or cored yarns, one of which is elastic
}
[2013‑01]
. . .
{
using hollow spindles (details of spindles, e.g. bearings D01H 7/86)
}
[2013‑01]
. . .
{
using a drawing frame
}
[2013‑01]
D02G 3/326
. . .
{
the elastic properties due to the construction rather than to the use of elastic material
}
[2013‑01]
D02G 3/328
. . .
{
containing elastane
}
[2013‑01]
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. .
Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
{
(carding machines for producing decorative or fancy effects in products D01G; drafting machines with varying draft according to a pre-arranged pattern D01H 5/36)
}
[2013‑01]
D02G 3/343
. . .
{
using hollow spindles (details of spindles, e.g. bearings D01H 7/86)
}
[2013‑01]
. . .
{
with coloured effects, i.e. by differential dyeing process
}
[2013‑01]
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. .
Cored or coated yarns or threads (
{
D02G 3/34, D02G 3/40 take precedence
}
; elastic yarns or threads D02G 3/32)
[2013‑01]
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D02G 3/362
. . .
{
using hollow spindles (details of spindles, e.g. bearings D01H 7/86)
}
[2013‑01]
. . . .
{
around which a reel supporting feeding spool rotates
}
[2013‑01]
D02G 3/367
. . .
{
using a drawing frame
}
[2013‑01]
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. .
Threads in which fibres, filaments, or yarns are wound with other yarns or filaments,
{
e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn; (D02G 3/32 takes precedence)
}
; (covering endless core threads with fibres by using open-end spinning techniques D01H 4/00) [2013‑01]
D02G 3/385
. . .
{
using hollow spindles, e.g. making coverspun yarns
}
[2013‑01]
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. .
Yarns in which fibres are united by adhesives; Impregnated yarns or threads [2013‑01]
D02G 3/402
. . .
{
the adhesive being one component of the yarn, i.e. thermoplastic yarn
}
[2013‑01]
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. . .
{
Yarns or threads coated with polymeric solutions
}
[2013‑01]
. . . .
{
where the polymeric solution is removable at a later stage, e.g. by washing
}
[2013‑01]
D02G 3/408
. . .
{
Flocked yarns
}
[2013‑01]
. .
Chenille threads [2013‑01]
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.
Yarns or threads characterised by the purpose for which they are designed
{
(protective gloves A41D 19/00; protective clothing A62B 17/00; ropes D07B 1/02)
}
[2013‑01]
. .
{
Yarns or threads with antistatic, conductive or radiation-shielding properties (electroconductive, anti-static or radiation-shielding filaments D01F 1/09, D01F 1/106; anti-static fabrics D03D 15/0005; conducting, insulating or anti-static layers for floor coverings D06N 7/0042)
}
[2013‑01]
. .
{
Cut or abrasion resistant yarns or threads
}
[2013‑01]
. .
{
Heat-resistant, fireproof or flame-retardant yarns or threads (fire- or flame-proof filaments D01F 1/07; woven fabrics using heat-resistant or fireproof threads D03D 15/12)
}
[2013‑01]
. .
{
Yarns or threads for use in sports applications (strings for tennis rackets A63B 51/02)
}
[2013‑01]
. .
{
Yarns or threads for use in floor fabrics (floor fabrics A47G 27/00; floor coverings on textile basis D06N 7/0005)
}
[2013‑01]
D02G 3/446
. .
{
Yarns or threads for use in automotive applications
}
[2013‑01]
. .
{
Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
}
[2013‑01]
D02G 3/448
. .
{
Yarns or threads for use in medical applications (D02G 3/449 takes precedence; surgical suture materials A61L 17/00)
}
[2013‑01]
. .
{
Yarns or threads with antibacterial properties (filaments containing agents inhibiting growth of micro-organisms D01F 1/103)
}
[2013‑01]
D02G 3/46
. .
Sewing-cottons or the like [2013‑01]
. .
Tyre cords
{
(tyre reinforcements B60C 9/00; metal cords for reinforcing rubber or plastic articles D07B 1/0606)
}
[2013‑01]
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Last Modified: 10/10/2013