Cooperative Patent Classification


Version: 2017.05
CPC
COOPERATIVE PATENT CLASSIFICATION
D01C
CHEMICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES [2013-01]
NOTE

  • Attention is drawn to the note following the title of Class D01
D01C 1/00
Treatment of vegetable material [2013-01]
D01C 1/02
.
By chemical methods to obtain bast fibres [2013-01]
D01C 1/04
.
Bacteriological retting [2013-01]
D01C 3/00
Treatment of animal material, e.g. chemical scouring of wool (recovery of lanolin or wool wax C11B 11/00) [2013-01]
D01C 3/02
.
De-gumming silk [2013-01]
D01C 5/00
Carbonising rags, {threads or fabrics} to recover animal fibres, {i.e. chemical removal of vegetable impurities (treatment of threads or fabrics of animal fibres for other purposes than removal of vegetable impurities D06L or D06M)} [2013-01]