CA951856A - Method of brightening kraft pulps - Google Patents
Method of brightening kraft pulpsInfo
- Publication number
- CA951856A CA951856A CA121,346A CA121346A CA951856A CA 951856 A CA951856 A CA 951856A CA 121346 A CA121346 A CA 121346A CA 951856 A CA951856 A CA 951856A
- Authority
- CA
- Canada
- Prior art keywords
- brightening
- kraft pulps
- pulps
- kraft
- brightening kraft
- Prior art date
- 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
- 238000005282 brightening Methods 0.000 title 1
- 239000002655 kraft paper Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7249170A | 1970-09-15 | 1970-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA951856A true CA951856A (en) | 1974-07-30 |
Family
ID=22107940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA121,346A Expired CA951856A (en) | 1970-09-15 | 1971-08-25 | Method of brightening kraft pulps |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3707438A (en) |
| BE (1) | BE772260A (en) |
| BR (1) | BR7105955D0 (en) |
| CA (1) | CA951856A (en) |
| DE (1) | DE2145212A1 (en) |
| ES (1) | ES394982A1 (en) |
| FR (1) | FR2107366A5 (en) |
| GB (1) | GB1318131A (en) |
| IT (1) | IT939406B (en) |
| NL (1) | NL7112585A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2219505C3 (en) * | 1972-04-21 | 1974-10-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorine-free multi-stage bleaching of cellulose |
| US4797010A (en) * | 1987-09-22 | 1989-01-10 | Nabisco Brands, Inc. | Reheatable, resealable package for fried food |
-
1970
- 1970-09-15 US US72491A patent/US3707438A/en not_active Expired - Lifetime
-
1971
- 1971-08-25 CA CA121,346A patent/CA951856A/en not_active Expired
- 1971-08-26 GB GB4017271A patent/GB1318131A/en not_active Expired
- 1971-09-07 FR FR7132272A patent/FR2107366A5/fr not_active Expired
- 1971-09-07 BE BE772260A patent/BE772260A/en unknown
- 1971-09-09 DE DE19712145212 patent/DE2145212A1/en active Pending
- 1971-09-10 IT IT52813/71A patent/IT939406B/en active
- 1971-09-10 BR BR5955/71A patent/BR7105955D0/en unknown
- 1971-09-10 ES ES394982A patent/ES394982A1/en not_active Expired
- 1971-09-13 NL NL7112585A patent/NL7112585A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2145212A1 (en) | 1972-05-25 |
| FR2107366A5 (en) | 1972-05-05 |
| IT939406B (en) | 1973-02-10 |
| ES394982A1 (en) | 1974-03-16 |
| BE772260A (en) | 1972-03-06 |
| NL7112585A (en) | 1972-03-17 |
| US3707438A (en) | 1972-12-26 |
| GB1318131A (en) | 1973-05-23 |
| BR7105955D0 (en) | 1973-05-31 |
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