ClassID:

127035

D21H23/26 - CPC Classification

Classification description:

Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added; Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper

Sub-classes:
Recent Application in this class:
#1
20200208352
2020-07-02

Method and Device for Applying a Material to a Moving Web

#2
20200023627
2020-01-23

Method for the production of a coated paper, paperboard or film and a coated paper, paperboard or film

#3
20190106842
2019-04-11

Method of producing a fibrous web containing natural and synthetic fibres

#4
20190003125
2019-01-03

Sizing method for making paper and paper prepared thereof

#5
20180202105
2018-07-19

Ink fixative solutions

#6
20180142423
2018-05-24

Recording medium

#7
20170022669
2017-01-26

Method for producing a mat of cellulose fibres with a controlled level of mineral material for bitumen-impregnated roofing elements, and suitable device

#8
20140367059
2014-12-18

Process for the manufacture of paper and paperboard

#9
20130076844
2013-03-28

Large-particle inkjet printing on semiporous paper

#10
20100151255
2010-06-17

Paper articles exhibiting water resistance and method for making same

#11
20100122787
2010-05-20

APPLICATION OF CHEMICAL AIDS AFTER A HEADBOX OF A PAPERMAKING PROCESS

#12
20080314539
2008-12-25

Paper articles exhibiting water resistance and method for making same

#13
20080277080
2008-11-13

Method for the Genetic Modulation of the Biosynthesis of Hemicelluloses, Cellulose and Uronic Acids in Plant Cells Using Gene Expression Cassettes

#14
20080248284
2008-10-09

Paper articles exhibiting water resistance and method for making same

#15
20080156449
2008-07-03

Paper articles exhibiting water resistance and method for making same

#16
20060266485
2006-11-30

Paper or paperboard having nanofiber layer and process for manufacturing same

#17
20060027348
2006-02-09

Method for producing paper or board and a product produced by the method

#18
20050098284
2005-05-12

Method for treating the surface of a web