GB565980A - Improvements in methods of making fibrous sheet materials - Google Patents

Improvements in methods of making fibrous sheet materials

Info

Publication number
GB565980A
GB565980A GB1746142A GB1746142A GB565980A GB 565980 A GB565980 A GB 565980A GB 1746142 A GB1746142 A GB 1746142A GB 1746142 A GB1746142 A GB 1746142A GB 565980 A GB565980 A GB 565980A
Authority
GB
United Kingdom
Prior art keywords
size
pulp
water
drying cylinders
methods
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
GB1746142A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1746142A priority Critical patent/GB565980A/en
Publication of GB565980A publication Critical patent/GB565980A/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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters

Abstract

Paper &c. is sized by adding to the pulp a finely-divided polyvinyl alcohol, which swells in water and dissolves in hot water, and maintaining the size in a water-swollen state until the wet pulp web is heated, as on the drying cylinders, so that the size partially dissolves and may set into a solid mass. Cold-water-soluble constituents may be separated out before mixing the size with the pulp, and frothing may be reduced by chromium compounds, or ferric chloride &c. The size, particles of which may pass screens of 50 to 500 mesh, may be added to the pulp suspension at the beater or stuff-box &c., and the pulp may thereupon be agitated for 10 to 30 to improve retention of the size by the fibres. The drying cylinders may be at 130 to 450 DEG F. The product is of high wet-strength, flexible and grease-repellant, and may be used for lithographic printing. Clay, casein, rosin and alum, &c. may also be incorporated.
GB1746142A 1942-12-08 1942-12-08 Improvements in methods of making fibrous sheet materials Expired GB565980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1746142A GB565980A (en) 1942-12-08 1942-12-08 Improvements in methods of making fibrous sheet materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1746142A GB565980A (en) 1942-12-08 1942-12-08 Improvements in methods of making fibrous sheet materials

Publications (1)

Publication Number Publication Date
GB565980A true GB565980A (en) 1944-12-07

Family

ID=10095584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1746142A Expired GB565980A (en) 1942-12-08 1942-12-08 Improvements in methods of making fibrous sheet materials

Country Status (1)

Country Link
GB (1) GB565980A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157566A (en) * 1962-07-17 1964-11-17 Beloit Corp Method of incorporating resin in molded pulp products
GB2336385A (en) * 1998-04-14 1999-10-20 Karel Charvat Sash windows with simultaneous motion of panels in opposite directions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157566A (en) * 1962-07-17 1964-11-17 Beloit Corp Method of incorporating resin in molded pulp products
GB2336385A (en) * 1998-04-14 1999-10-20 Karel Charvat Sash windows with simultaneous motion of panels in opposite directions

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