Paper making and fiber liberation – Processes and products – With coating after drying
Patent
1997-04-28
1999-06-29
Chin, Peter
Paper making and fiber liberation
Processes and products
With coating after drying
162134, 162136, 162158, 162182, D21H 1916
Patent
active
059164182
ABSTRACT:
The specification discloses a method for improving the lay flat properties of paper which comprises applying to a cellulosic fibrous web an aqueous solution consisting essentially of a dialdehyde, preferably glyoxal, and from about 50 to about 150 parts by weight of a polyol, preferably glycerol, per 100 parts of the dialdehyde and then drying the web at a temperature sufficient to cure the glyoxal and polyol. The concentration of dialdehyde and polyol in the solution is sufficient to provide a combined total of from about 0.1 to about 10 weight percent dialdehyde and polyol in the web based on the oven-dry weight of the paper. The solution is preferably applied in a papermaking process at or after the wet press and prior to treating the web with chemicals having free hydroxyl groups which may react with the dialdehyde.
REFERENCES:
patent: 2785995 (1957-03-01), Kress
patent: 3547679 (1970-12-01), Moran
patent: 4070319 (1978-01-01), Carel et al.
patent: 4384894 (1983-05-01), Vickers et al.
patent: 4446174 (1984-05-01), Maekawa et al.
patent: 4455416 (1984-06-01), Floyd et al.
patent: 4537634 (1985-08-01), Floyd
patent: 4906299 (1990-03-01), Dragner
patent: 4936916 (1990-06-01), Shinmitsu et al.
patent: 5004600 (1991-04-01), Suzuki
patent: 5132146 (1992-07-01), Maruyama et al.
patent: 5187219 (1993-02-01), Furman, Jr.
patent: 5254403 (1993-10-01), Malhotra
patent: 5372984 (1994-12-01), Yamauchi et al.
patent: 5395440 (1995-03-01), Trouve
patent: 5478894 (1995-12-01), Chiang
patent: 5527383 (1996-06-01), Flynn et al.
patent: 5541002 (1996-07-01), Hosoi et al.
Title: An Investigation of Methods for Dimensionally Stabilizing Paper Authors: F. W. Lorey & C. E. Libby Published by TAPPI, Aug., 1954, vol. 37, No. 8, pp. 321-331.
Title: The Reactions of Cellulose With Glyoxal Author: Frank S. H. Head Published by The Reactions of Cellulose with Glyoxal-Head--pp. T345-T356 Released for Publication by British Cotton Industry Research Association on May 2, 1958.
Title: Dimensional Stabilization of Paper by Catalyzed Heat Treatment and Cross-Linking With Formaldehyde Author: Alfred J. Stamm Publication: TAPPI, vol. 42, No. 1, Jan. 1959, pp. 44-50.
Title: Improving the Wet Rub Resistance of Starch-Clay Paper Coatings with Glyoxal Authors: G. W. Buttrick & N. R. Eldred Publication: TAPPI, vol. 45, No. 11, Nov., 1962, pp. 890-893.
Title: Gloyxal: A Unique Wet-Strength Agent Authors: N. R. Eldred & J. C. Spicer Publication: TAPPI, vol. 46 (10) (1963) pp. 608-612.
Title: Crosslinking Cotton Cellulose With Aldehydes Authors: J. G. Frick, Jr. & Robert J. Harper, Jr. Publication: Journal of Applied Polymer Science, vol. 27, 983-988 (1982).
Title: Glyoxal as a Non-Nitrogenous Formaldehyde-Free Durable-Press Reagent for Cotton Authors: Clark M. Welch & G. Forthright Danna Publication: 1982 Textile Research Institute--pp. 149-157.
Title: Glyoxal as a Formaldehyde-Free Durable Press Reagent for Mild Curing Applications Author: Clark M. Welch Publication: Textile Research Journal, vol. 53, Mar., 1983, pp. 181-186.
Title: Low, Medium, and High Tempeature Catalysts for Formaldehyde-Free Durable Press Finishing by the Gloyxal-Glycol Process Authors: Clark M. Welch & Julie G. Peters Publication: Textile Research Institute, Jun., 1987, pp. 351-356.
Frank Benjamin
Karles Georgios D.
Chin Peter
International Paper Company
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