IPC 6 English version  D21J-D21J00700
SECTION D– TEXTILES; PAPER

D 21

PAPER-MAKING; PRODUCTION OF CELLULOSE

D 21 J

FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE (manufacture of articles by dry processes B 27 N)

1/

00

Fibreboard (preparation of pulp compositions or addition of chemical agents D 21 B, D 21 C, D 21 H; formation of the wet web D 21 F)

1/

02

. 

Cutting, e.g. using wet saws

1/

04

. 

Pressing

1/

06

. 

Drying

1/

08

. 

Impregnated or coated fibreboard

1/

10

. 

After-treatment

1/

12

. . 

Hardening

1/

14

. . 

Conditioning

1/

16

. 

Special fibreboard

1/

18

. . 

Hardboard

1/

20

. . 

Insulating board

3/

00

Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds

3/

02

. 

of rings

3/

04

. 

of tubes

3/

06

. 

of stoppers

3/

08

. 

of bobbins

3/

10

. 

of hollow bodies

3/

12

. 

of sheets; of diaphragms

5/

00

Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds

7/

00

Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
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