Treatment process for cellulosic fibers

Details Treatment process for cellulosic fibers Treatment process for cellulosic fibers

1997-09-26

1999-01-12

Diamond, Alan

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

811551, 162 90, 162 91, 162100, 162109, 162111, 162188, 162197, D06M 1138

Patent

active

058580212

ABSTRACT:
Disclosed is a process for treating cellulosic fibers using an alkali metal hydroxide. The process first prepares the cellulosic fibers as a high consistency mixture with water and then adds an alkali metal hydroxide. The high consistency process is quite efficient and has been found to produce cellulosic fibers that are essentially uniformly treated. Also disclosed is a handsheet prepared from the treated cellulosic fibers for use is disposable absorbent products.

REFERENCES:
patent: 1857100 (1932-05-01), McCormick et al.
patent: 3521638 (1970-07-01), Parrish
patent: 3525735 (1970-08-01), Miller
patent: 3769152 (1973-10-01), Samuelson et al.
patent: 3971379 (1976-07-01), Chatterjee
patent: 4075279 (1978-02-01), Holst et al.
patent: 4165743 (1979-08-01), Denning
patent: 4399275 (1983-08-01), Sears
patent: 4710187 (1987-12-01), Boland et al.
patent: 4762521 (1988-08-01), Roessler et al.
patent: 4770656 (1988-09-01), Proxmire et al.
patent: 4798603 (1989-01-01), Meyer et al.
patent: 4898642 (1990-02-01), Moore et al.
patent: 4908097 (1990-03-01), Box
patent: 4986882 (1991-01-01), Mackeye t al.
patent: 5149335 (1992-09-01), Kellenberger et al.
patent: 5183707 (1993-02-01), Herron et al.
patent: 5247072 (1993-09-01), Ning et al.
patent: 5318554 (1994-06-01), Young et al.
patent: 5464547 (1995-11-01), Stehlin et al.
American Society for Testing Materials (ASTM) Designation: D 1921-89, "Standard Test Methods for Particle Size (Sieve Analysis) of Plastic materials," pp. 493-496, published Aug. 1989.
TAPPI Official Test Method T 203 om-93, "Alpha-, Beta-, and Gamma-Cellulose in Pulp," published by the TAPPI Press, Atlanta, Georgia, revised 1993, pp. 1-4. (Month unknown).
TAPPI Official Test Method T 401 om-93, "Fiber Analysis of Paper and Paperboard," published by the TAPPI Press, Atlanta, Georgia, revised 1993, pp. 1-13. (Month unknown).
Atalla, R. H. et al., ".sub.13 C NMR Spectra of Cellulose Polymorphs," Journal of the American Chemical Society: Communications to the Editor, 102:9, Apr. 1980, pp. 3249-3251.
Corbett, W.M. and J. Kinn, "Some Aspects of Alkali Refining of Pulps," Tappi, vol. 41, No. 3, Mar. 1958, pp. 137-144.
Earl, W.L. and D.L. VanderHart, "Observations by High-Resolution Carbon-13 Nuclear Magnetic Resonance of Cellulose I Related to Morphology and Crystal Structure," Marcromolecules, vol. 14, No. 3, May-Jun. 1981, pp. 570-574.
Gibbons, G.C., "The Moisture Regain of Methylcellulose and Cellulose Acetate," The Journal of the Textile Institute, vol. 44, No. 5, May 1953, pp. T201-T208.
Jeffries, R. et al., "Current Ideas On the Structure of Cotton," Cellulose Chemistry and Technology, 3, 1969, pp. 255-274. (Month Unknown).
Kolpak, F.J. and J. Blackwell, "Determination of the Structure of Cellulose II," Macromolecules, vol. 9, No. 2, Mar.-Apr. 1976, pp. 273-278.
Kolpak, Francis J., Mark Weih, and John Blackwell, "Mercerization of Cellulose: 1. Determination of the Structure of Mercerized Cotton," Polymer, vol. 19, Feb. 1978, pp. 123-131.
Sarko, Anatole, Jeffrey Southwick & Jisuke Hayashi "Packing Analysis of Carbohydrates and Polysaccharides. 7. Crystal Structure of Cellulose III & Its Relationship to Other Cellulose Polymorphs," Macromolecules, vol. 9, No. 5, Sep.-Oct. 1976, pp. 857-863.
Stipanovic, Arthur J. and Anatole Sarko, "Packing Analysis of Carbohydrates and Polysaccharides. 6. Molecular and Crystal Structure of Regenerated Cellulose II," Macromolecules, vol. 9, No. 5, Sep.-Oct. 1976, pp. 851-857.
Thomas, B.B., "Specialty Papermaking With Mercerized Wood Fibers," Tappi, vol. 49, No. 12, Dec. 1966, pp. 515-521.
Valentine, L., "Absolute Crystallinities of Celluloses From Moisture Sorption Determinations," Chemistry and Industry, Nov. 3, 1956, pp. 1279-1280.
Warwicker, J.O., "Swelling of Cotton In Alkalis and Acids," Journal of Applied Polymer Science, vol. 13, 1969, pp. 41-54. (Month Unknown).
"Bleaching of Chemical Pulps," Pulp and Paper: Chemistry and Chemical Technology, 3rd edition, vol. 1, edited by James P. Casey, John Wiley & Sons, New York, 1980, pp. 670-673. (Month Unknown).
Derwent World Patent Database Abstract No. 90-204181/27 of JP 2-133,688: Description of Kanzaki Paper Mfg., "Recycling of Waste Thermosensible Recording Paper." (Date Unknown).
Derwent World Patent Database Abstract No. 94-115649/14 of JP 6-065,862: Description of Nisshinbo Ind. Inc., "Highly Water-Absorbent Cellulosic Fibre Production." (Date Unknown).
Derwent World Patent Database Abstract No. 90-124276/16 of US 4,908,097: Description of L. Box, "High-Bulk, Absorbent, Modified Cellulosic Fibres." (Date Unknown).
Derwent World Patent Database Abstract No. 83-813563/45 of SU 988,941: Description of Bondarenko et al., "Processing Waste Newsprint for Manufacture of Toliet Paper." (Date Unknown).
Paperchem Abstract No. 51-11507 of US 4,247,362: Description of J.C. Williams, "High-Yield Fiber Sheets." (Date Unknown).
Paperchem Abstract No. 46-03799 of TAPPI/CPPA Intern. Mech. Pulping Conf., San Francisco, Jun. 16-20, 1975: Description of B. Orgill, "Effect of Chemical Preimpregnation on Thermomechanical Pulping of Hardwoods."
Paperchem Abstract No. 52-03998 of Wood Science Technology 15, No. 1: 31-43, 1981: Description of Casilla et al., "Immersion Technique for studying Wood Wettability." (Month Unknown).
Paperchem Abstract No. 52-01773 of JP Kokai 4,333/80: Description of Shimada et al., "Ethyl Carboxyethyl Cellulose for Enteric Coating." (Date Unknown).
Paperchem Abstract No. 51-06453 of Magyar Textiltech. 33, No. 7:329-340, Jul. 1980: Description of I. Rusznak, "Hot Mercerization (of Cotton)".
Paperchem Abstract No. 51-05247 of GB 1,565,720: Description of ATO Chimie SA, "Process for Improving the Water Wettabilityof Polyolefins." (Date Unknown).
Paperchem Abstract No. 51-04517 of Khim. Drev. (Riga) No. 1: 47-54, Jan./Feb. 1980 (Russ.): Description of Yakobson et al., "Effect of Changes in the Newtork Structure of Lignin-Carbohydrate Matrix on Wood Properties. (3). Effect of Degradation on the Hydrophilic nature of Birchwood."
Paperchem Abstract No. 48-09046 of J. Adhesion 9, No. 1: 63-71 (1977): Description of Tinh et al., "Effects of Etraction on Wettabiligy and Glueability of Apitong (Dipterocarpus Grandiflorus Blanco)." (Month Unknown).
Paperchem Abstract No. 48-01437 of Polymer 18, No. 4: 315-318 (Apr. 1977): Description of Abou-State et al., "Cold Alkali Refining of Cellulosic Pulps Derived From Egyptian Cotton and Bagasse."
Paperchem Abstract No. 65-06313 of Przegl. Wlok. 46, No. 11: 276-279 (Nov. 1992). (Pol.): Description of Bartos, "Effect of Catalysts on Alkaline Scouring of Cellulosic Fabrics."
Paperchem Abstract No. 64-06498 of US 5,124,197: Description of Bernardin et al., "Inflated Cellulose Fiber Web Possessing Improved Vertical Wicking Properties." (Date Unknown).
Paperchem Abstract No. 64-03782 of US 5,112,690: Description of Cohen et al., "Low-Hydrohead Fibrous Porous Web With Improved Retentive Wettability." (Date Unknown).
Paperchecm Abstract No. 63-02330 of US 5,059,282: Description of Ampulski et al., "Soft Tissue Paper." (Date Unknown).
Paperchem Abstract No. 62-03021 of Dtsch. Papierwirtsch. No. 4: V8-10, V12, V39-40 (1990). (Ger. & Engl.): Description of Gerstenberg, "Corona PRetreatment to Allow Weeting and Bonding." (Month Uknown).
Paperchem Abstract No. 56-07536 of Holzforschung 39, No. 4: 239-243 (Aug. 1985). (Fr., Engl., & Ger. Sum.): Description of Rozumek et al., "Study of the Wettability of Maritime Pine by a Urea-Formaldehyde Resin."
Paperchem Abstract No. 53-02975 of Research Disclosure No. 208: 324-325 (Aug. 1981); Description of "Resin-Treated Cellulosic Fibers and Process for Their Manufacture."
Paperchem Abstract No. 51-03874 of USSR Patent 732,427: Description of Nelovkaya et al., "Composition For Mercerizing Cellulosic Textiles." (Date Unknown).
Paperchem Abstract No. 49-02811 of INDA Tech. Symp. Nonwoven Technology (Atlanta) 6: 83-91 (Mar. 1978): Description of Schyler et al., "Bonding of Hydrophobic-Fiber Nonwovens: Effect of Some Colloidal Properties of Latex Binders."
Paperchem Abstract No. 48-08855 of US 4,049,764: Description of Sigl e

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