Patents-Review.com
ClassID:

127032 ⎘

D21H23/20 - 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 pulp; After-treatment of added substances in the pulp Apparatus therefor

Recent Application in this class:
#1
20240309584
2024-09-19

SYSTEM AND METHOD OF MANUFACTURE OF CELLULOSE INSULATION

 #2
20230183924
2023-06-15

METHOD, APPARATUS, AND SYSTEM OF A FIBRILLATED NANOCELLULOSE MATERIAL

 #3
20210363700
2021-11-25

STARCH COMPOSITE FOR BINDING FIBERS, FIBER STRUCTURE, AND FIBER STRUCTURE-MANUFACTURING APPARATUS

 #4
20210292971
2021-09-23

Sheet manufacturing apparatus

 #5
20210292970
2021-09-23

Sheet manufacturing apparatus and control method for sheet manufacturing apparatus

 #6
20210277602
2021-09-09

Sheet manufacturing apparatus and control method for sheet manufacturing apparatus

 #7
20210277599
2021-09-09

SHEET MANUFACTURING APPARATUS AND CONTROL METHOD FOR SHEET MANUFACTURING APPARATUS

 #8
20210164167
2021-06-03

FIBER ASSEMBLY-FORMING METHOD, FIBER ASSEMBLY-FORMING APPARATUS, AND SHEET

 #9
20210164162
2021-06-03

METHOD AND APPARATUS FOR MANUFACTURING FIBER MOLDED ARTICLE, AND BINDING RAW MATERIAL AND METHOD FOR MANUFACTURING THE SAME

 #10
20210156091
2021-05-27

Fiber assembly-forming method and fiber assembly-forming apparatus

 #11
20210148051
2021-05-20

SYSTEM FOR CONTINUOUS TREATMENT OF CELLULOSE PULPS

 #12
20200208352
2020-07-02

Method and Device for Applying a Material to a Moving Web

 #13
20200181847
2020-06-11

Dosing of nanocellulose suspension in gel phase

 #14
20200165779
2020-05-28

Method for improving filler and fiber retention in paper making processes

 #15
20200063353
2020-02-27

Cellulose and cellulose ester film

 #16
20200002894
2020-01-02

Sheet manufacturing apparatus, control method thereof, and sheet manufacturing method

 #17
20190211508
2019-07-11

Paper Processing Composition and Process of Production

 #18
20190203421
2019-07-04

Functional substance adsorption device for fiber

 #19
20190100881
2019-04-04

Binder, sheet manufacturing apparatus, sheet manufacturing method, and sheet

 #20
20180327974
2018-11-15

Process for making paper, paperboard or the like

 #21
20150000853
2015-01-01

Device and method for monitoring biocide dosing in a machine

 #22
20100009168
2010-01-14

COATED PAPER OR BOARD PRODUCT AND PROCESS FOR THE PREPARATION THEREOF

 #23
20090211721
2009-08-27

Method and arrangement for feeding chemicals into a process stream

 #24
20070258316
2007-11-08

Method of mixing a paper making chemical into a fiber suspension flow

 #25
20070169908
2007-07-26

Method and arrangement for feeding chemicals into a process stream

 #26
20070133346
2007-06-14

Mixing of chemicals into a thin stock pipe