FR857089A - Improvements in papermaking - Google Patents

Improvements in papermaking

Info

Publication number
FR857089A
FR857089A FR857089DA FR857089A FR 857089 A FR857089 A FR 857089A FR 857089D A FR857089D A FR 857089DA FR 857089 A FR857089 A FR 857089A
Authority
FR
France
Prior art keywords
papermaking
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
Other languages
French (fr)
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.)
CELLULOSE HOLDINGS
Original Assignee
CELLULOSE HOLDINGS
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 CELLULOSE HOLDINGS filed Critical CELLULOSE HOLDINGS
Application granted granted Critical
Publication of FR857089A publication Critical patent/FR857089A/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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D21H17/26—Ethers thereof
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
    • D21H23/28—Addition before the dryer section, e.g. at the wet end or press section
FR857089D 1938-06-29 1939-06-29 Improvements in papermaking Expired FR857089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1932638A GB518568A (en) 1938-06-29 1938-06-29 Improvements in or relating to paper and the like

Publications (1)

Publication Number Publication Date
FR857089A true FR857089A (en) 1940-08-24

Family

ID=10127488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR857089D Expired FR857089A (en) 1938-06-29 1939-06-29 Improvements in papermaking

Country Status (2)

Country Link
FR (1) FR857089A (en)
GB (1) GB518568A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664964A (en) * 1947-07-16 1954-01-05 Asplund Arne Johan Arthur Fibrous filter sheet for gases
US3068116A (en) * 1959-01-12 1962-12-11 Eastman Kodak Co Manufacture of partially acetylated paper
US5275698A (en) * 1992-03-09 1994-01-04 Hercules Incorporated Enhancement of tissue paper softness with minimal effect on strength

Also Published As

Publication number Publication date
GB518568A (en) 1940-03-01

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