FR2355955B1 - - Google Patents
Info
- Publication number
- FR2355955B1 FR2355955B1 FR7719507A FR7719507A FR2355955B1 FR 2355955 B1 FR2355955 B1 FR 2355955B1 FR 7719507 A FR7719507 A FR 7719507A FR 7719507 A FR7719507 A FR 7719507A FR 2355955 B1 FR2355955 B1 FR 2355955B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- D21H21/00—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
- D21H21/14—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 characterised by function or properties in or on the paper
- D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/60—Optical bleaching or brightening
- D06L4/664—Preparations of optical brighteners; Optical brighteners in aerosol form; Physical treatment of optical brighteners
-
- 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
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2628571A DE2628571C3 (en) | 1976-06-25 | 1976-06-25 | Process for improving the dry strength of paper and for improving the effect of optical brighteners in the paper industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2355955A1 FR2355955A1 (en) | 1978-01-20 |
| FR2355955B1 true FR2355955B1 (en) | 1982-04-23 |
Family
ID=5981430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7719507A Granted FR2355955A1 (en) | 1976-06-25 | 1977-06-24 | PROCESS FOR IMPROVING THE EFFECT OF OPTICAL BRIGHTENERS IN THE PAPER INDUSTRY |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT369453B (en) |
| CS (1) | CS203160B2 (en) |
| DE (1) | DE2628571C3 (en) |
| FR (1) | FR2355955A1 (en) |
| GB (1) | GB1591322A (en) |
| SE (2) | SE441018B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3316949C3 (en) * | 1983-05-09 | 1995-03-23 | Pluss Stauffer Ag | calcium carbonate |
| NZ331438A (en) | 1997-09-16 | 2000-01-28 | Ciba Sc Holding Ag | A method of increasing the whiteness of paper by using a formulation containing a swellale layered silicate and an optical brightener 4,4-bis-(triazinylamino)-stilbene-2,2-disulphonic acid |
| EP0905317B1 (en) | 1997-09-16 | 2009-12-23 | Basf Se | A method for optically brightening paper |
| DE19923778A1 (en) * | 1999-05-22 | 2000-11-23 | Sued Chemie Ag | Cationic modified whitener dispersion for the paper industry |
| DE10162052A1 (en) * | 2001-12-17 | 2003-06-26 | Basf Ag | Production of paper or cardboard with enhanced whiteness involves treating the pulp with a mixture of linear, cationic polyelectrolyte and optical brightener |
| US7638016B2 (en) | 2005-02-19 | 2009-12-29 | International Paper Company | Method for treating kraft pulp with optical brighteners after chlorine bleaching to increase brightness |
-
1976
- 1976-06-25 DE DE2628571A patent/DE2628571C3/en not_active Expired
-
1977
- 1977-06-22 SE SE7707249A patent/SE441018B/en not_active IP Right Cessation
- 1977-06-24 AT AT0449677A patent/AT369453B/en not_active IP Right Cessation
- 1977-06-24 GB GB26575/77A patent/GB1591322A/en not_active Expired
- 1977-06-24 FR FR7719507A patent/FR2355955A1/en active Granted
- 1977-06-27 CS CS774236A patent/CS203160B2/en unknown
-
1982
- 1982-08-30 SE SE8204938A patent/SE459860B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE441018B (en) | 1985-09-02 |
| SE459860B (en) | 1989-08-14 |
| SE8204938D0 (en) | 1982-08-30 |
| ATA449677A (en) | 1982-05-15 |
| DE2628571B2 (en) | 1980-05-29 |
| DE2628571C3 (en) | 1981-02-12 |
| CS203160B2 (en) | 1981-02-27 |
| GB1591322A (en) | 1981-06-17 |
| DE2628571A1 (en) | 1977-12-29 |
| SE7707249L (en) | 1977-12-26 |
| AT369453B (en) | 1983-01-10 |
| SE8204938A (en) | 1982-08-30 |
| FR2355955A1 (en) | 1978-01-20 |