D
SECTION D — TEXTILES AND PAPER
PAPER
D21
PAPER-MAKING
;
PRODUCTION OF CELLULOSE
D21J
FIBREBOARD
;
MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
D21J 1/00
Fibreboard
(stock preparation or addition of chemical agents
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D21B
,
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D21C
,
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D21H
; formation of the wet web
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D21F
)
D21J 1/02
·
Cutting, e.g. using wet saws
D21J 1/04
·
Pressing
D21J 1/06
·
Drying
D21J 1/08
·
Impregnated or coated fibreboard
D21J 1/10
·
After-treatment
D21J 1/12
· ·
Hardening
D21J 1/14
· ·
Conditioning
D21J 1/16
·
Special fibreboard
D21J 1/18
· ·
Hardboard
D21J 1/20
· ·
Insulating board
D21J 3/00
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
D21J 3/02
·
of rings
D21J 3/04
·
of tubes
D21J 3/06
·
of stoppers
D21J 3/08
·
of bobbins
D21J 3/10
·
of hollow bodies
D21J 3/12
·
of sheets
;
of diaphragms
D21J 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
D21J 7/00
Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould