United States Patent and Trademark Office

Outline		Indent Level
Color		Curly Brackets (indicating CPC extensions to IPC)

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	CPC	COOPERATIVE PATENT CLASSIFICATION

D02J

FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE (curling or crimping D02G; by treatment with liquids, gases or vapours D06B; finishing other than by liquid treatment, of yarns in warp or sheet form D06C; for chemical matters, see D06L, D06M, D06P, D06Q; treatment during rope-making, apparatus for treating ropes auxiliary to rope-making D07B)

NOTE

Attention is drawn to the note following the title of Class D02.

D02J 1/00

Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers (modifying only the surface D02J 3/00)

D02J 1/02

Bulking, e.g. looping (by crimping, by curling D02G)

D02J 1/04

Compacting

D02J 1/06

Imparting irregularity, e.g. slubbing or other non-uniform features, e.g. high- and low-shrinkage or strengthened and weakened sections

D02J 1/08

Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

D02J 1/12

Modifying stretch/bulk properties of textured yarns or the like by after-treatment

D02J 1/14

Rendering uniform or evening non-uniform features

D02J 1/16

Rubbing or similar working, e.g. to redistribute or remove fibres

D02J 1/18

Separating or spreading

D02J 1/20

Stressing or stress-relieving, e.g. by vibration or subjection to electrostatic stress or electric discharge

D02J 1/22

Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch (stretch spinning D01D 5/12)

D02J 1/221

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{

Preliminary treatments

}

D02J 1/222

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{

Stretching in a gaseous atmosphere or in a fluid bed

}

D02J 1/223

. .

{

Stretching in a liquid bath

}

D02J 1/224

. .

{

Selection or control of the temperature during stretching

}

D02J 1/225

. .

{

Mechanical characteristics of stretching apparatus

}

D02J 1/226

. . .

{

Surface characteristics of guiding or stretching organs

}

D02J 1/227

. .

{

Control of the stretching tension; Localisation of the stretching neck; Draw-pins

}

D02J 1/228

. .

{

Stretching in two or more steps, with or without intermediate steps

}

D02J 1/229

. .

{

Relaxing (in combination with crimping D02G 1/20)

}

D02J 3/00

Modifying the surface

D02J 3/02

by abrading, scraping, scuffing, cutting, or nicking (preliminary roughening of fibres, e.g. for spinning, D01G 3/00)

D02J 3/04

by brushing

D02J 3/06

by polishing, e.g. glazing, glossing

D02J 3/08

. .

by compressing, e.g. by calendering or ironing

D02J 3/10

by indenting

D02J 3/12

by removing projecting ends of fibres

D02J 3/14

. .

by shearing

D02J 3/16

. .

by singeing

D02J 3/18

Treating with particulate, semi-solid, or solid substances, e.g. wax (during package formation B65H 71/00; waxing yarns or the like as incidental measures during spinning or twisting D01H 13/30)

D02J 7/00

Cleaning, e.g. removing dust, loose fibres, charred ends (in combination with the shearing, singeing, or otherwise removing of projecting fibre ends D02J 3/12, D02J 3/14, D02J 3/16)

D02J 11/00

Combinations, not covered by any one of the preceding groups, of processes provided for in such groups; Plant for carrying-out such combinations of processes

D02J 13/00

Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass (heating, cooling or drying during spinning or twisting D01H; drying of yarns or the like, in general F26B)

D02J 13/001

{

in a tube or vessel

}

D02J 13/003

{

by contact with at least one stationary surface, e.g. a plate

}

D02J 13/005

{

by contact with at least one rotating roll

}

D02J 13/006

{

in a fluid bed (stretching in a fluid bed D02J 1/222)

}

D02J 13/008

{

with elimination of fumes

}