(0)D21F:1/1:
IPC6
SECTION D - TEXTILES; PAPER
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F
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<<   >>   D21F002/00 - D21F013/10  

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/ 00 Transferring webs from wet ends to press sections
 

3
/ 00 Press section of machines for making continuous webs of paper

3
/ 02 Wet presses  

3
/ 04 Arrangements thereof  

3
/ 06 Means for regulating the pressure  

3
/ 08 Pressure rolls  

3
/ 10 Suction rolls, e.g. couch rolls  
 

5
/ 00 Dryer section of machines for making continuous webs of paper

5
/ 02 Drying on cylinders  

5
/ 04 on two or more drying cylinders  

5
/ 06 Regulating temperature  

5
/ 08 Arrangement of steam points in the cylinders  

5
/ 10 Removing condensate from the interior of the cylinders  

5
/ 12 Festoon drying  

5
/ 14 Drying webs by applying vacuum  

5
/ 16 Drying webs by electrical heating  

5
/ 18 Drying webs by hot air  

5
/ 20 Waste heat recovery  
 

7
/ 00 Other details of machines for making continuous webs of paper

7
/ 02 Mechanical driving arrangements  

7
/ 04 Paper-break control devices  

7
/ 06 Indicating or regulating the thickness of the layer; Signal devices  

7
/ 08 Felts  

7
/ 10 Seams thereof  

7
/ 12 Drying  
 

9
/ 00 Complete machines for making continuous webs of paper

9
/ 02 of the Fourdrinier type  

9
/ 04 of the cylinder type  
 

11
/ 00 Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

11
/ 02 of the Fourdrinier type  

11
/ 04 paper or board consisting of two or more layers  

11
/ 06 of the cylinder type  

11
/ 08 paper or board consisting of two or more layers  

11
/ 10 Making imitation mould-made paper  

11
/ 12 Making corrugated paper or board  

11
/ 14 Making cellulose wadding, filter- or blotting paper  

11
/ 16 Making paper strips for spinning or twisting  
 

13
/ 00 Making discontinuous sheets of paper, pulpboard, or cardboard, or of wet web, for fibreboard production (making discontinuous sheets of board in moulds D 21 J; drying paper, pulpboard, or cardboard, in discontinuous-sheet form F 26 B)

13
/ 02 Making hand-made paper  

13
/ 04 on cylinder board machines  

13
/ 06 Format rolls  

13
/ 08 Automatic cut-off rolls  

13
/ 10 using board presses  

13
/ 12 Platen presses  

 

 

 


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