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IPC 7
D01C-D01C00500

SECTION D – TEXTILES; PAPER


D 01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING (metal threads B21; fibres or filaments of softened glass, minerals, or slag C03B 37/00; yarns D02)


D 01 CCHEMICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES


Notes

(1)Attention is drawn to the Note following the title of class D01.

(2)Processes using enzymes or micro-organisms in order to:

 (i)liberate, separate or purify a pre-existing compound or composition, or to

 (ii)treat textiles or clean solid surfaces of materials

 are further classified in subclass C12S.  [5]



1/

00Treatment of vegetable material

1/

02.by chemical methods to obtain bast fibres

1/

04.Bacteriological retting


3/

00Treatment of animal material, e.g. chemical scouring of wool (recovery of lanolin or wool wax C11B 11/00)

3/

02.De-gumming silk


5/

00Carbonising rags to recover animal fibres (chemical removal of vegetable impurities from threads or fabrics of animal fibres D06M)


  
 

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