GB2018849A - Pulp and paper and their manufacturing - Google Patents

Pulp and paper and their manufacturing

Info

Publication number
GB2018849A
GB2018849A GB7912468A GB7912468A GB2018849A GB 2018849 A GB2018849 A GB 2018849A GB 7912468 A GB7912468 A GB 7912468A GB 7912468 A GB7912468 A GB 7912468A GB 2018849 A GB2018849 A GB 2018849A
Authority
GB
United Kingdom
Prior art keywords
fibres
pulp
paper
majority
give
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.)
Withdrawn
Application number
GB7912468A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Billerud Uddeholm AB
Original Assignee
Billerud Uddeholm AB
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
Priority claimed from SE7803974A external-priority patent/SE7803974L/en
Priority claimed from SE7805087A external-priority patent/SE7805087L/en
Application filed by Billerud Uddeholm AB filed Critical Billerud Uddeholm AB
Publication of GB2018849A publication Critical patent/GB2018849A/en
Withdrawn legal-status Critical Current

Links

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
    • D21C9/001—Modification of pulp properties
    • 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
    • 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
    • D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
    • D21H5/16—Tobacco or cigarette paper

Abstract

Cellulosic pulp is prepared by mechanical working in a strongly alkaline aqueous solution containing OH ions in a concentration of 20 - 100 g/ l calculated as NaOH. This method can give a pulp in which the majority of the fibres consist of a multi-bent main stem having along its length branches consisting of bunches of fibrils; the length distribution of the fibres after beating to 80 Shopper-Riegler being such that at least 25 weight-% of the fibres will not pass through a sieve of mesh 50; and the majority of the fibres having a breadth between 10 and 100 mu m. Paper made from this pulp is particularly useful as a cigarette paper to give cigarettes with low tar formation.
GB7912468A 1978-04-10 1979-04-09 Pulp and paper and their manufacturing Withdrawn GB2018849A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7803974A SE7803974L (en) 1978-04-10 1978-04-10 WAY TO MAKE CELLULOSA MASS
SE7805087A SE7805087L (en) 1978-05-03 1978-05-03 WAY TO PRODUCE CELLULOSA MASS

Publications (1)

Publication Number Publication Date
GB2018849A true GB2018849A (en) 1979-10-24

Family

ID=26657026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912468A Withdrawn GB2018849A (en) 1978-04-10 1979-04-09 Pulp and paper and their manufacturing

Country Status (5)

Country Link
BR (1) BR7902192A (en)
DE (1) DE2913354A1 (en)
FI (1) FI791167A (en)
FR (1) FR2422764A1 (en)
GB (1) GB2018849A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240253A1 (en) * 1982-10-30 1984-05-03 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg CIGARETTE PAPER
GB2136668A (en) * 1981-12-24 1984-09-26 Kimberly Clark Co Modified cigarette wrappers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456826B (en) * 1986-04-18 1988-11-07 Svenska Traeforskningsinst SET TO REDUCE ENERGY CONSUMPTION BY REFINING CELLULOSALLY MATERIAL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136668A (en) * 1981-12-24 1984-09-26 Kimberly Clark Co Modified cigarette wrappers
DE3240253A1 (en) * 1982-10-30 1984-05-03 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg CIGARETTE PAPER
GB2129460A (en) * 1982-10-30 1984-05-16 Bat Cigarettenfab Gmbh A cigarette paper

Also Published As

Publication number Publication date
FI791167A (en) 1979-10-11
FR2422764A1 (en) 1979-11-09
DE2913354A1 (en) 1979-10-18
BR7902192A (en) 1979-12-04

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)