How to use alum with cationic dispersed rosin size
Source abstract
Abstract
Retention of cationic dispersed rosin size was studied via turbidity measurements on stock filtrate with different alum and dispersed rosin size dosages. Stock charge characteristics were analyzed using both an analysis of charge demand determined via a streaming current detector and an evaluation of zeta potential of the fibers by streaming potential measurement. The results indicated that an optimum amount of alum existed such that good sizing retention was maintained throughout a wide range of dispersed rosin size dosages. However, when an excessive amount of alum was used and fines and colloidal particles were transitioned from anionic to cationic, the cationic size retention was reduced. Laboratory results were confirmed with a paper machine trial. All data suggested that a stock charge study was necessary to identify optimal alum dosage for a cationic dispersed rosin sizing program.
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Research context
OpenAlex topics: Electrospun Nanofibers in Biomedical Applications · Research in Cotton Cultivation
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References (12)
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1. W.J. Barrow Research Laboratory, Permanence/Durability of the Book—VII Physical and Chemical Properties of Book Papers, 1507–1949, W.J. Barrow Research Laboratory, Richmond, VA, USA, 1974.
2. Hubbe, M., in “Mini encyclopedia of papermaking wet-end chemistry: additives and ingredients, their composition, function, strategies for use.” Available [Online] http://www4.ncsu.edu/~hubbe/SOAP.htm <10May2016>.
3. Garbon, J., in TAPPI Introduction to Wet End Chemistry Short Course, TAPPI PRESS, Atlanta, GA, 2003.
4. Bambang, W., Tachibana, S., and Tinambunan, D., Pak. J. Biol. Sci. 10(10): 1588(2007).10.3923/pjbs.2007.1588.1595 ↗
5. Hagiopol, C. and Johnston, J.W., Chemistry of Modern Papermaking, CRC Press, Boca Raton, FL, USA, 2011, p. 272.10.1201/b11011 ↗
6. Strachan, J., Pap. Maker (London) 82(1): 36(1931).10.1112/jlms/s1-6.2.82 ↗
7. Gillet, M.A.C., French Pat. 752,970 (Jul. 31, 1933).10.2307/1281182 ↗
8. Scott, W.E., Principles of Wet End Chemistry, TAPPI PRESS, Atlanta, 1996, pp. 73–88.
9. Ehrhardt, S.M. and Gast, J.C., “Cationic dispersed rosin sizes,” Papermakers Conf., TAPPI PRESS, Atlanta, 1988, p. 181.
10. Arnson, T.R., Tappi 65(3): 125(1982).
11. Scott, W.E., Principles of Wet End Chemistry, TAPPI PRESS, 1996, pp. 21–31.
12. Hubbe, M.A., Rojas, O.J., Lucia, L.A., et al., Cellulose 14(6): 655(2007).10.1007/s10570-006-9098-4 ↗