SE8404867L - IMPROVED PROCEDURE FOR PREPARING Pulp by using an S-triazine additive as well as improved pulp of wood and paper containing an S-triazine - Google Patents
IMPROVED PROCEDURE FOR PREPARING Pulp by using an S-triazine additive as well as improved pulp of wood and paper containing an S-triazineInfo
- Publication number
- SE8404867L SE8404867L SE8404867A SE8404867A SE8404867L SE 8404867 L SE8404867 L SE 8404867L SE 8404867 A SE8404867 A SE 8404867A SE 8404867 A SE8404867 A SE 8404867A SE 8404867 L SE8404867 L SE 8404867L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- triazine
- improved
- wood
- well
- Prior art date
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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Prostheses (AREA)
Abstract
Melamine or ammeline is added to wood or wood pulp so that paper produced therefrom has wet and dry strength, ink and pigment retention, improved color and brightness, soil and grease resistance, and electrical properties. The melamine may be added during bleaching of pulp, or during refining in a thermomechanical pulping process, or during beating of a pulp, which may be derived from waste paper. Salts thereof may also be used.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53792683A | 1983-09-30 | 1983-09-30 | |
US53792783A | 1983-09-30 | 1983-09-30 | |
US06/537,876 US4487656A (en) | 1983-09-30 | 1983-09-30 | Process for bleaching paper pulp using melamine as a viscosity stabilizer |
US65175184A | 1984-09-19 | 1984-09-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8404867D0 SE8404867D0 (en) | 1984-09-28 |
SE8404867L true SE8404867L (en) | 1985-03-31 |
SE464031B SE464031B (en) | 1991-02-25 |
Family
ID=27504668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8404867A SE464031B (en) | 1983-09-30 | 1984-09-28 | PREPARED PROCEDURES FOR PREPARING PASS OF WHEN USING AN S-TRIAZIN ADDITIONAL |
Country Status (10)
Country | Link |
---|---|
AT (1) | ATA310984A (en) |
BR (1) | BR8404914A (en) |
DE (1) | DE3436015A1 (en) |
FI (1) | FI74082C (en) |
FR (1) | FR2552792B1 (en) |
GB (1) | GB2148344B (en) |
IT (1) | IT1180236B (en) |
NO (1) | NO843919L (en) |
NZ (1) | NZ209708A (en) |
SE (1) | SE464031B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4230656A1 (en) * | 1992-09-14 | 1994-03-17 | Ciba Geigy | Process to improve whiteness, brightness and color location of fillers and pigments |
DE4230655A1 (en) * | 1992-09-14 | 1994-03-17 | Ciba Geigy | Process for improving the whiteness, brightness and color location of fibrous materials |
CN115110329A (en) * | 2022-06-28 | 2022-09-27 | 中国制浆造纸研究院有限公司 | Method for reducing metal content and ash content in bleaching section pulp |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB600961A (en) * | 1944-09-20 | 1948-04-23 | Du Pont | Improvements in or relating to the impregnation of wood with urea-formaldehyde resins |
BE566286A (en) * | 1957-04-02 | |||
FR1281896A (en) * | 1960-09-07 | 1962-01-19 | Westinghouse Electric Corp | Process for stabilizing cellulosic insulation in contact with liquid dielectrics |
GB1500599A (en) * | 1975-11-28 | 1978-02-08 | Koppers Co Inc | Compositions for imparting fire retardance to wood |
-
1984
- 1984-09-28 NO NO843919A patent/NO843919L/en unknown
- 1984-09-28 IT IT22893/84A patent/IT1180236B/en active
- 1984-09-28 SE SE8404867A patent/SE464031B/en not_active IP Right Cessation
- 1984-09-28 NZ NZ209708A patent/NZ209708A/en unknown
- 1984-09-28 BR BR8404914A patent/BR8404914A/en unknown
- 1984-09-28 FI FI843831A patent/FI74082C/en not_active IP Right Cessation
- 1984-09-28 FR FR8415011A patent/FR2552792B1/en not_active Expired
- 1984-09-28 GB GB08424540A patent/GB2148344B/en not_active Expired
- 1984-10-01 DE DE19843436015 patent/DE3436015A1/en active Granted
- 1984-10-01 AT AT843109A patent/ATA310984A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE464031B (en) | 1991-02-25 |
DE3436015C2 (en) | 1990-03-08 |
FI74082B (en) | 1987-08-31 |
FI843831A0 (en) | 1984-09-28 |
FI843831L (en) | 1985-03-31 |
GB8424540D0 (en) | 1984-11-07 |
NZ209708A (en) | 1988-08-30 |
FR2552792A1 (en) | 1985-04-05 |
BR8404914A (en) | 1985-08-20 |
GB2148344A (en) | 1985-05-30 |
GB2148344B (en) | 1987-04-15 |
FI74082C (en) | 1987-12-10 |
ATA310984A (en) | 1991-11-15 |
FR2552792B1 (en) | 1987-01-09 |
DE3436015A1 (en) | 1985-05-02 |
IT8422893A0 (en) | 1984-09-28 |
SE8404867D0 (en) | 1984-09-28 |
IT1180236B (en) | 1987-09-23 |
NO843919L (en) | 1985-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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