BE379557A - - Google Patents
Info
- Publication number
- BE379557A BE379557A BE379557DA BE379557A BE 379557 A BE379557 A BE 379557A BE 379557D A BE379557D A BE 379557DA BE 379557 A BE379557 A BE 379557A
- Authority
- BE
- Belgium
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/60—Waxes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
- D21H23/18—Addition at a location where shear forces are avoided before sheet-forming, e.g. after pulp beating or refining
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR716420T | 1931-05-01 | ||
| GB12920/31A GB378024A (en) | 1931-05-01 | 1931-05-01 | Improvements in manufacture of paper filled with alkaline filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE379557A true BE379557A (en:Method) | 1931-06-30 |
Family
ID=10013553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE379557D BE379557A (en:Method) | 1931-05-01 | 1931-05-04 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE379557A (en:Method) |
| FR (1) | FR716420A (en:Method) |
| GB (1) | GB378024A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2292158B (en) * | 1994-07-26 | 1998-12-09 | Roe Lee Paper Chemicals Compan | Sizing method |
| US7234857B2 (en) * | 1998-02-26 | 2007-06-26 | Wetend Technologies Oy | Method and apparatus for feeding a chemical into a liquid flow |
-
1931
- 1931-05-01 GB GB12920/31A patent/GB378024A/en not_active Expired
- 1931-05-01 FR FR716420D patent/FR716420A/fr not_active Expired
- 1931-05-04 BE BE379557D patent/BE379557A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR716420A (fr) | 1931-12-21 |
| GB378024A (en) | 1932-08-02 |