FI51722C - Method for bleaching paper. - Google Patents

Method for bleaching paper.

Info

Publication number: FI51722C
Authority: FI; Finland
Prior art keywords: bleaching paper; bleaching; paper
Prior art date: 1964-08-13

Application number

FI651882A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI51722B (en

Inventor

Morris Wayman

William Howard Rapson

Original Assignee

Electric Reduction Co

Priority date (The priority date 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 date listed.)

1964-08-13

Filing date

1965-08-04

Publication date

1977-03-10

1965-08-04 Application filed by Electric Reduction Co filed Critical Electric Reduction Co

1976-11-30 Application granted granted Critical

1976-11-30 Publication of FI51722B publication Critical patent/FI51722B/fi

1977-03-10 Publication of FI51722C publication Critical patent/FI51722C/en

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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/02—Chemical or biochemical treatment
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
- 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
- D21H17/66—Salts, e.g. alums
- 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
- D21H21/32—Bleaching agents
- 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
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/1272—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which can be physically or chemically modified during or after web formation
- D21H5/1281—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which can be physically or chemically modified during or after web formation by chemical treatment

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Inorganic Chemistry (AREA)
Biochemistry (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

FI651882A 1964-08-13 1965-08-04 Method for bleaching paper. FI51722C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB33090/64A GB1102456A (en)	1964-08-13	1964-08-13	Improvements in the bleaching of paper

Publications (2)

Publication Number	Publication Date
FI51722B FI51722B (en)	1976-11-30
FI51722C true FI51722C (en)	1977-03-10

Family

ID=10348440

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI651882A FI51722C (en)	1964-08-13	1965-08-04	Method for bleaching paper.

Country Status (5)

Country	Link
US (1)	US3467575A (en)
BE (1)	BE667858A (en)
FI (1)	FI51722C (en)
GB (1)	GB1102456A (en)
NO (1)	NO118204B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3635806A (en) *	1969-10-27	1972-01-18	Procter & Gamble	Photochemical bleaching of polymaleate homopolymers and copolymers in the presence of a peracid
US3709778A (en) *	1971-01-12	1973-01-09	Atlantic Richfield Co	Method for bleaching groundwood pulp with tertiary butyl hydroperoxide
FI90680C (en) *	1992-04-24	1994-03-10	Kymin Paperiteollisuus Oy	Bleaching of paper web with peroxide
US7914646B2 (en)	2006-07-21	2011-03-29	Nalco Company	Compositions and processes for paper production

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA461242A (en) *		1949-11-22	L. Mcewen Robert	Bleached paper and method of bleaching the same
US1154851A (en) *	1915-04-19	1915-09-28	Edward P Foley	Process of bleaching ground wood-pulp.
US1645061A (en) *	1924-08-21	1927-10-11	American Lakes Paper Company	Method of bleaching paper pulp
US2125634A (en) *	1937-03-29	1938-08-02	Oxford Paper Co	Method of bleaching pulp or paper webs
US2150926A (en) *	1937-07-03	1939-03-21	Buffalo Electro Chem Co	Process of making and bleaching paper
US2347434A (en) *	1941-06-30	1944-04-25	Du Pont	Stabilization of peracid solutions
US2492047A (en) *	1946-03-30	1949-12-20	Du Pont	Bleaching wood pulp
US2598580A (en) *	1947-10-08	1952-05-27	Buffalo Electro Chem Co	Bleaching or brightening a web of mixed fibers
US2862784A (en) *	1955-03-04	1958-12-02	Virginia Smelting Company	Oxidative-reductive multi-stage bleaching of ground wood pulp
US2963395A (en) *	1958-03-31	1960-12-06	Crown Zellerbach Corp	Process of bleaching lignocellulosic pulps
US2970882A (en) *	1958-12-03	1961-02-07	Kendall & Co	Process for continuous purification of bulk fiber
US3085039A (en) *	1960-08-23	1963-04-09	Fmc Corp	Process for the treatment of wood

1964
- 1964-08-13 GB GB33090/64A patent/GB1102456A/en not_active Expired
1965
- 1965-07-28 NO NO159121A patent/NO118204B/no unknown
- 1965-08-02 US US476452A patent/US3467575A/en not_active Expired - Lifetime
- 1965-08-04 BE BE667858D patent/BE667858A/xx not_active IP Right Cessation
- 1965-08-04 FI FI651882A patent/FI51722C/en active

Also Published As

Publication number	Publication date
GB1102456A (en)	1968-02-07
US3467575A (en)	1969-09-16
BE667858A (en)	1965-12-01
NO118204B (en)	1969-11-24
FI51722B (en)	1976-11-30

Publication	Publication Date	Title
FI49374C (en)	1975-06-10	Embossing machine.
DK113822B (en)	1969-04-28	Handle for paper bags.
DK126398B (en)	1973-07-09	Reproduction machine.
CH447221A (en)	1967-11-30	Printer machine
NL147806B (en)	1975-11-17	PAPER MACHINE.
FI49996C (en)	1975-11-10	Paper machine.
NL140473B (en)	1973-12-17	CARRYING BOX.
CH445294A (en)	1967-10-15	Duplicating machine
FI51685C (en)	1977-03-10	Paper winder
CH459741A (en)	1968-07-15	Treated paper
FI44325C (en)	1971-10-11	Method for bleaching cellulose pulp
DK124811B (en)	1972-11-27	Wrapping machine.
FI51722C (en)	1977-03-10	Method for bleaching paper.
DK113623B (en)	1969-04-08	Wrapping box.
FI45581C (en)	1972-07-10	Paper machine headbox.
FI47211C (en)	1973-10-10	Method for making heat-adhesive paper.
DK116416B (en)	1970-01-05	Capsule machine.
FI45356C (en)	1972-05-10	Pulp bleaching method.
FI48367C (en)	1974-09-10	Bleaching method for cellulose pulp.
DK114315B (en)	1969-06-16	Cigarette paper.
FI46610C (en)	1973-05-08	Two-roll winding machine for winding paper, tissue paper or paperboard.
FI44749C (en)	1971-12-10	Glued cellulose paper.
FI52232C (en)	1977-07-11	The method produces dielectric lossless paper
FI52602C (en)	1977-10-10	Paper forming machine.
DK111607B (en)	1968-09-16	Pile framing machine.