IPC Classification
- All sections
- D - Textiles; paper
- D01C - Chemical or biological treatment of natural filamentary or fibrous material to obtain filaments or fibres for spinning; carbonising rags to recover animal fibres
| D01C 1/00 | Treatment of vegetable material |
| D01C 1/02 | Treatment of vegetable material by chemical methods to obtain bast fibres |
| D01C 1/04 | Bacteriological retting |
| D01C 3/00 | Treatment of animal material, e.g. chemical scouring of wool |
| D01C 3/02 | De-gumming silk |
| D01C 5/00 | Carbonising rags to recover animal fibres |