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IPC-Stelle: D21H 23/00 Hauptgruppe [Version 2024.01 (aktuell), Sprache EN - English]

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DEKLA-Gruppen

Symbol		Titel
A Hierarchieinformationen		HUMAN NECESSITIES
B Hierarchieinformationen		PERFORMING OPERATIONS; TRANSPORTING
C Hierarchieinformationen		CHEMISTRY; METALLURGY
D Hierarchieinformationen		TEXTILES; PAPER
D01 Hierarchieinformationen		TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D01 Hierarchieinformationen		NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D02 Hierarchieinformationen		YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
D03 Hierarchieinformationen		WEAVING
D04 Hierarchieinformationen		BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D05 Hierarchieinformationen		SEWING; EMBROIDERING; TUFTING
D06 Hierarchieinformationen		TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D07 Hierarchieinformationen		ROPES; CABLES OTHER THAN ELECTRIC
D21 Hierarchieinformationen		PAPER
D21 Hierarchieinformationen		PAPER-MAKING; PRODUCTION OF CELLULOSE
D21B Hierarchieinformationen		FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
D21C Hierarchieinformationen		PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21D Hierarchieinformationen		TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE [5]
D21F Hierarchieinformationen		PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21G Hierarchieinformationen		CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES (winders or rewinders for finished products, means for adjustment of wrinkles or lateral extensions B65H)
D21H Hierarchieinformationen		PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR [5]
D21H 11/00 Hierarchieinformationen		Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only [5, 2006.01]
D21H 13/00 Hierarchieinformationen		Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material (chemical features in the manufacture of artificial fibres D01F) [5, 2006.01]
D21H 15/00 Hierarchieinformationen		Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution [5, 2006.01]
D21H 17/00 Hierarchieinformationen		Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution [5, 2006.01]
D21H 19/00 Hierarchieinformationen		Coated paper (coated fibreboard D21J 1/08); Coating material (recording sheets characterised by the coating used to improve ink, dye or pigment receptivity B41M 5/50) [5, 2006.01]
D21H 21/00 Hierarchieinformationen		Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties [5, 2006.01]
D21H 23/00 Hierarchieinformationen		Processes or apparatus for adding material to the pulp or to the paper [5, 2006.01]
D21H 23/02 Hierarchieinformationen		. characterised by the manner in which substances are added [5, 2006.01]
D21H 23/04 Hierarchieinformationen		. . Addition to the pulp; After-treatment of added substances in the pulp [5, 2006.01]
D21H 23/06 Hierarchieinformationen		. . . Controlling the addition [5, 2006.01]
D21H 23/08 Hierarchieinformationen		. . . . by measuring pulp properties, e.g. zeta potential or pH [5, 2006.01]
D21H 23/10 Hierarchieinformationen		. . . . . at least two kinds of compounds being added [5, 2006.01]
D21H 23/12 Hierarchieinformationen		. . . . by measuring properties of the formed web [5, 2006.01]
D21H 23/14 Hierarchieinformationen		. . . . by selecting point of addition or time of contact between components [5, 2006.01]
D21H 23/16 Hierarchieinformationen		. . . . . Addition before or during pulp beating or refining [5, 2006.01]
D21H 23/18 Hierarchieinformationen		. . . . . Addition at a location where shear forces are avoided before sheet-forming, e.g. after pulp beating or refining [5, 2006.01]
D21H 23/20 Hierarchieinformationen		. . . Apparatus therefor [5, 2006.01]
D21H 23/22 Hierarchieinformationen		. . Addition to the formed paper [5, 2006.01]
D21H 23/24 Hierarchieinformationen		. . . during paper manufacture [5, 2006.01]
D21H 23/26 Hierarchieinformationen		. . . . by selecting point of addition or moisture content of the paper [5, 2006.01]
D21H 23/28 Hierarchieinformationen		. . . . . Addition before the dryer section, e.g. at the wet end or press section [5, 2006.01]
D21H 23/30 Hierarchieinformationen		. . . Pretreatment of the paper (D21H 23/70, D21H 23/76 take precedence) [5, 2006.01]
D21H 23/32 Hierarchieinformationen		. . . by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper (D21H 23/66 takes precedence; removing excess material D21H 25/08) [5, 2006.01]
D21H 23/34 Hierarchieinformationen		. . . . Knife or blade type coaters [5, 2006.01]
D21H 23/36 Hierarchieinformationen		. . . . . Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade [5, 2006.01]
D21H 23/38 Hierarchieinformationen		. . . . . the fluid material being applied with a special device, e.g. with a roll in a flooded-nip inverted blade coater [5, 2006.01]
D21H 23/40 Hierarchieinformationen		. . . . only one side of the paper being in contact with the material (D21H 23/34 takes precedence) [5, 2006.01]
D21H 23/42 Hierarchieinformationen		. . . . Paper being at least partly surrounded by the material on both sides (D21H 23/34 takes precedence) [5, 2006.01]
D21H 23/44 Hierarchieinformationen		. . . . . Treatment with a gas or vapour [5, 2006.01]
D21H 23/46 Hierarchieinformationen		. . . Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper (D21H 23/66 takes precedence) [5, 2006.01]
D21H 23/48 Hierarchieinformationen		. . . . Curtain coaters [5, 2006.01]
D21H 23/50 Hierarchieinformationen		. . . Spraying or projecting (D21H 23/44, D21H 23/66 take precedence) [5, 2006.01]
D21H 23/52 Hierarchieinformationen		. . . by contacting paper with a device carrying the material (D21H 23/32, D21H 23/46, D21H 23/66 take precedence) [5, 2006.01]
D21H 23/54 Hierarchieinformationen		. . . . Rubbing devices, e.g. brushes, pads or felts [5, 2006.01]
D21H 23/56 Hierarchieinformationen		. . . . Rolls (D21H 23/38 takes precedence) [5, 2006.01]
D21H 23/58 Hierarchieinformationen		. . . . . Details thereof, e.g. surface characteristics or peripheral speed [5, 2006.01]
D21H 23/60 Hierarchieinformationen		. . . . . . the material on the applicator roll being subjected to a particular treatment before applying to the paper (D21H 23/64 takes precedence) [5, 2006.01]
D21H 23/62 Hierarchieinformationen		. . . . . . Reverse roll coating, i.e. applicator roll surface moving in direction opposite to that of the paper [5, 2006.01]
D21H 23/64 Hierarchieinformationen		. . . . the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating [5, 2006.01]
D21H 23/66 Hierarchieinformationen		. . . Treating discontinuous paper, e.g. sheets, blanks or rolls [5, 2006.01]
D21H 23/68 Hierarchieinformationen		. . . . whereby the paper moves continuously [5, 2006.01]
D21H 23/70 Hierarchieinformationen		. . . Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group [5, 2006.01]
D21H 23/72 Hierarchieinformationen		. . . . Plural serial stages only [5, 2006.01]
D21H 23/74 Hierarchieinformationen		. . . . Apparatus permitting switching from one technique to another [5, 2006.01]
D21H 23/76 Hierarchieinformationen		. characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect (D21H 17/18, D21H 17/70, D21H 23/10 take precedence) [5, 2006.01]
D21H 23/78 Hierarchieinformationen		. Controlling or regulating not limited to any particular process or apparatus [5, 2006.01]
D21H 25/00 Hierarchieinformationen		After-treatment of paper not provided for in groups D21H 17/00-D21H 23/00 [5, 2006.01]
D21H 27/00 Hierarchieinformationen		Special paper not otherwise provided for, e.g. made by multi-step processes [5, 2006.01]
D21J Hierarchieinformationen		FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MÂCHÉ (manufacture of articles by dry processes B27N)
D99 Hierarchieinformationen		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
E Hierarchieinformationen		FIXED CONSTRUCTIONS
F Hierarchieinformationen		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G Hierarchieinformationen		PHYSICS
H Hierarchieinformationen		ELECTRICITY

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