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Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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BLEACHING, e.g. OPTICAL BLEACHING, DRY-CLEANING, OR WASHING FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS (treatmentof fibres of filaments of glass, mineral wool, or slag wool C03; chemical treatment of fibrous material to obtain fibres for spinning D01; for mechanical matters D06C, D06F; bleaching paper pulp or cotton linters D21;
{
softening compositions for textiles, cleaning compositions for carpets, upholstery, fur or leather C11D
}
)
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Dry-cleaning or washing fibres, threads, yarns, fabrics, feathers or made-up fibrous goods
D06L 1/005
.
{
using only solid or pasty materials
}
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D06L 1/02
.
using organic solvents
D06L 1/04
. .
together with additives (D06L 1/06 takes precedence)
D06L 1/06
. .
De-sizing
D06L 1/08
. .
Multi-step processes
D06L 1/10
. .
Regeneration of used chemical baths
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D06L 1/12
.
using aqueous baths
D06L 1/14
. .
De-sizing
D06L 1/16
. .
Multi-step processes
D06L 1/18
. .
Working under pressure in closed vessels
D06L 1/20
. .
combined with mechanical means
D06L 1/22
.
Processes involving successive treatments with aqueous and organic materials
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Bleaching fibres, threads, yarns, fabrics, feathers, or made-up fibrous goods, leather, or furs
{
(dyeing and bleaching D06P 1/0024)
}
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D06L 3/02
.
using compounds which develop oxygen (D06L 3/06 takes precedence)
D06L 3/021
. .
{
combined with specific additives
}
D06L 3/023
. .
{
using inorganic compounds
}
D06L 3/025
. .
{
using organic compounds
}
D06L 3/026
. .
{
in an inert solvent
}
D06L 3/028
. .
{
in a gaseous compositions
}
D06L 3/04
.
by irradiation or ozonisation
{
electrolysis
}
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D06L 3/06
.
using compounds which contain halogen
D06L 3/061
. .
{
combined with specific additives
}
D06L 3/063
. .
{
using organic compounds
}
D06L 3/065
. .
{
in an inert solvent
}
D06L 3/066
. .
{
in a gaseous composition (D06L 3/08 takes precedence)
}
D06L 3/068
. .
{
using hypohalogenites
}
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D06L 3/08
. .
chlorites; chlorine dioxide
D06L 3/085
. . .
{
combined with specific additives
}
D06L 3/10
.
using reducing agents
.
using enzymes
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.
Optical bleaching
{
brightening
}
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D06L 3/1207
. .
{
Optical brightening in aqueous medium
}
D06L 3/1214
. . .
{
with anionic brighteners
}
D06L 3/1221
. . .
{
with cationic brighteners
}
D06L 3/1228
. . .
{
with disperse brighteners
}
D06L 3/1235
. .
{
Optical brightening in organic solvent
}
D06L 3/1242
. .
{
Optical brightening in gaseous or solid form, e.g. transfer, powder
}
D06L 3/125
. .
{
Optical brightening with mixtures of optical brighteners
}
D06L 3/1257
. .
{
Optical brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing, white pigments
}
D06L 3/1264
. .
{
Optical brighteners preparations, physical treatments of optical brighteners, optical brighteners in aerosol form
}
D06L 3/1271
. .
{
Optical brightening assistants
}
D06L 3/1278
. .
{
Fixing treatments in optical brightening, e.g. heat, steam, acid shock
}
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D06L 3/1285
. .
{
Fugitive optical brightening, organic blueing, discharge of optical brighteners, optical brighteners in discharge pastes, differential optical brightening
}
D06L 3/1292
. . .
{
Organic blueing with mixtures of organic dyes; mixtures of dyes with optical brighteners
}
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D06L 3/14
.
Multi-step processes
D06L 3/16
. .
combined with cleaning or washing
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Last Modified: 10/10/2013