SE7510158L - PROCEDURE FOR TREATMENT OF MECHANICAL MASSES AND / OR FROM PRODUCTS PRODUCED - Google Patents

PROCEDURE FOR TREATMENT OF MECHANICAL MASSES AND / OR FROM PRODUCTS PRODUCED

Info

Publication number
SE7510158L
SE7510158L SE7510158A SE7510158A SE7510158L SE 7510158 L SE7510158 L SE 7510158L SE 7510158 A SE7510158 A SE 7510158A SE 7510158 A SE7510158 A SE 7510158A SE 7510158 L SE7510158 L SE 7510158L
Authority
SE
Sweden
Prior art keywords
pulp
buffer
mechanical
sept
refiner
Prior art date
Application number
SE7510158A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE418873B (en
Inventor
N Soteland
Original Assignee
Papirind Forskningsinst
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.)
Filing date
Publication date
Application filed by Papirind Forskningsinst filed Critical Papirind Forskningsinst
Publication of SE7510158L publication Critical patent/SE7510158L/en
Publication of SE418873B publication Critical patent/SE418873B/en

Links

Classifications

    • 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
    • D21B1/38—Conserving the finely-divided cellulosic material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • 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

Abstract

1515865 Treating mechanical pulp PAPIRINDUSTRIENS FORSKNING-SINSTITUTT 12 Sept 1975 [12 Sept 1974] 37605/75 Heading D2W Mechanical wood pulp is impregnated with a buffer agent (other than a borate) which buffers in the pH range 6-10, the buffer agent being present in an amount of at least 0.2% by wt., based on the dry wt. of the pulp. The buffer, which may be added in the form of an aqueous solution, may be introduced into a refiner or grinder, the white water system of a paper machine, or by injection into the pulp. The buffer may be an alkali metal salt or ammonium salt of phosphoric acid, carbonic acid, citric acid or tartaric acid. The examples describe the use of sodium phosphate, ammonium carbonate, sodium citrate, and sodium borate (for comparison only) buffer solutions. The mechanical pulp may be a refiner pulp, ground wood pulp or, a thermomechanical pulp, which may have been treated with ozone. The treated pulps are stated to be easily wet defiberised, and show a high water absorption rate.
SE7510158A 1974-09-12 1975-09-11 MECHANICAL MASS WITH HIGH ABSORBATION SPEED CONTAINING A BUFFER COMPONENT AND PROCEDURES FOR PREPARING THEREOF SE418873B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO743286A NO136583C (en) 1974-09-12 1974-09-12 MECHANICAL TRIMASSES WITH HIGH SPEED OF ABSORPTION, AND PROCEDURE FOR PREPARING THEREOF

Publications (2)

Publication Number Publication Date
SE7510158L true SE7510158L (en) 1976-03-15
SE418873B SE418873B (en) 1981-06-29

Family

ID=19881821

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7510158A SE418873B (en) 1974-09-12 1975-09-11 MECHANICAL MASS WITH HIGH ABSORBATION SPEED CONTAINING A BUFFER COMPONENT AND PROCEDURES FOR PREPARING THEREOF

Country Status (13)

Country Link
JP (1) JPS5184904A (en)
AT (1) AT347781B (en)
BE (1) BE833343A (en)
CA (1) CA1073162A (en)
DE (1) DE2539570C3 (en)
DK (1) DK141255B (en)
FI (1) FI59444C (en)
FR (1) FR2284706A1 (en)
GB (1) GB1515865A (en)
IT (1) IT1049168B (en)
NL (1) NL7510763A (en)
NO (1) NO136583C (en)
SE (1) SE418873B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432118B (en) * 1975-02-26 1984-03-19 Moelnlycke Ab MECHANICAL FLUFF MASS AND SET FOR PREPARATION THEREOF
NO760666L (en) * 1976-02-27 1977-08-30 Papirind Forskningsinst PROCEDURE FOR MAKING MECHANICAL MASSES.
PH13425A (en) * 1976-05-10 1980-04-23 Du Pont 2,3,8,12b-tetrahydro 1 h-3a,8-methano-dibenzo(3,4,6,7)cyclohepta(1,2-c)pyrrole derivatives pharmaceutical compositions containing same and method
DE3128100C2 (en) * 1981-07-16 1986-05-22 Chemische Fabrik Stockhausen GmbH, 4150 Krefeld Absorbents for blood and serous body fluids
DE3712445A1 (en) * 1987-04-11 1988-10-20 Ver Papierwerke Ag HYGIENIC PULP PRODUCT WITH IMPROVED SKIN COMPATIBILITY

Also Published As

Publication number Publication date
NO136583C (en) 1984-06-07
JPS5184904A (en) 1976-07-24
ATA688175A (en) 1978-05-15
BE833343A (en) 1975-12-31
AT347781B (en) 1979-01-10
DE2539570A1 (en) 1976-04-01
DE2539570C3 (en) 1980-02-14
IT1049168B (en) 1981-01-20
SE418873B (en) 1981-06-29
FR2284706A1 (en) 1976-04-09
AU8455175A (en) 1977-03-10
DK141255B (en) 1980-02-11
FI752552A (en) 1976-03-13
DK406775A (en) 1976-03-13
CA1073162A (en) 1980-03-11
GB1515865A (en) 1978-06-28
FR2284706B1 (en) 1982-04-23
DE2539570B2 (en) 1979-06-13
NL7510763A (en) 1976-03-16
NO743286L (en) 1976-03-15
NO136583B (en) 1977-06-20
FI59444B (en) 1981-04-30
FI59444C (en) 1981-08-10

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