GB313085A - Improvements in absorbent paper - Google Patents

Improvements in absorbent paper

Info

Publication number
GB313085A
GB313085A GB16964/29A GB1696429A GB313085A GB 313085 A GB313085 A GB 313085A GB 16964/29 A GB16964/29 A GB 16964/29A GB 1696429 A GB1696429 A GB 1696429A GB 313085 A GB313085 A GB 313085A
Authority
GB
United Kingdom
Prior art keywords
pulp
curling
absorbent paper
temperature
effect
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
Application number
GB16964/29A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB313085A publication Critical patent/GB313085A/en
Expired legal-status Critical Current

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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/04—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration crimped, kinked, curled or twisted fibres

Landscapes

  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

313,085. Du Pont de Nemours & Co., E. I., (Assignees of Schwartz, G. L., and McCormick, F. H.). June 6, 1928, [Convention date]. Absorbent paper; pulp, preparation of.-Pulp for absorbent paper, suitable as a base for impregnating compositions such as contain resins, pyroxylin, rubber and the like, is obtained, by treating pulp with a swelling agent having the effect of kinking or curling the cellulose fibres and thereafter washing out the swelling agent. Caustic soda solutions are suitable but other caustic alkalies, sulphuric acid, zinc chloride, various thiocyanates, ferric chloride, and cuprammonium solutions may be used. In any treatment, the strength of the solution, the temperature and duration are such that oils, resins and other impurities which interfere with the wetting are dissolved or destroyed and then the temperature is lowered to produce a swelling action on the cellulose, curling but not dissolving it. An aqueous caustic soda solution may be used at normal room temperature, when it exerts a solvent action, and then cooled to effect the curling before the washing operation. The process is applicable to mechanical wood pulp, kraft, jute, soda pulp, rope, sulphite, and linen.
GB16964/29A 1928-06-06 1929-06-01 Improvements in absorbent paper Expired GB313085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US313085XA 1928-06-06 1928-06-06

Publications (1)

Publication Number Publication Date
GB313085A true GB313085A (en) 1930-02-27

Family

ID=21858735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16964/29A Expired GB313085A (en) 1928-06-06 1929-06-01 Improvements in absorbent paper

Country Status (2)

Country Link
DE (1) DE602890C (en)
GB (1) GB313085A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913082C (en) * 1939-01-25 1954-06-08 Schoeller & Hoesch Capacitor paper, the raw material of which has largely been freed from ash components, and process for its production
US4227964A (en) * 1976-12-01 1980-10-14 Kerr Allan J Method of treating lignocellulosic or cellulosic pulp to promote the kinking of pulp fibres and/or to improve paper tear strength

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913082C (en) * 1939-01-25 1954-06-08 Schoeller & Hoesch Capacitor paper, the raw material of which has largely been freed from ash components, and process for its production
US4227964A (en) * 1976-12-01 1980-10-14 Kerr Allan J Method of treating lignocellulosic or cellulosic pulp to promote the kinking of pulp fibres and/or to improve paper tear strength

Also Published As

Publication number Publication date
DE602890C (en) 1934-09-18

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