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Abstract

Kenaf is an important bast fiber because it is biodegradable and has other ecofriendly characteristics. In this study, chelators, including ethylenediamine tetra acetic acid (EDTA) and citric acid (CA); surfactants, including phosphate ester (Silvatol), alkylaxylsulfonates (Conco), cationic quaternary amine (Atlas), and modified polyglycol ether (Tanapon); and bleaching enhancers, including sodium pyrophosphate, and sodium metasilicate, along with hydrogen peroxide bleaching, are evaluated for their efficiency in processing me chanically separated kenaf fibers. Treatment conditions, such as processing temperature, solution pH, processing time and chemical concentrations, are evaluated based on the resulting fiber strength and appearance. Gas chromatography and infrared spectroscopy are also used to study fiber chemical composition (syringyl and guaiacyl lignins) as affected by processing. The results indicate that the treatments can substantially remove lignin from bast fibers. The best whiteness and strength results are obtained with fibers processed with 5% sodium pyrophosphate + 5% Silvatol + 1.5% H₂O₂ at pH 10.5 and a temperature of 96°C for 60 minutes.

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References

Akin, D.E. , Gamble, G.R. , Morrison, W.H. , and Rigsby, L.L. , Chemical and Structural Analysis of Fiber and Core Tissues from Flax, J. Sci. Food Agric. 72, 155-165 (1996).

Akin. D.E. , Rigsby, L.L. , and Perkins, W. , Quality Properties of Flax Fibers Retted with Enzymes, Textile Res. J. 69(10), 747-753 (1999).

Amin, M.N. , Begum, M. , Shahjahan, M. , Rahman, M.S. , and Baksh, T. , Bleaching Process for Increasing Whiteness and Lightfastness of Kenaf and Kenaf-Jute Blended Fabrics. Cellul. Chem. Technol. 32, 497-504 (1998).

Baldwin, B. , Graig, C.C. , Hollowell, J.E. , and Luttrell, R.G. , Effect of Insecticide Application on Insect Population and Kenaf Yield , in "Proc. Ninth Annual Intl. Kenaf Assoc. Conf ," Abstracts, Scottsdale, AZ, 1997, p. 37.

Chattopadhyay, S.N. , Sanyal, S.K. , Kundu , A.B. , Day, A. , Pan, N.C. , and Mitra, B.C. , Biotreatment of Jute, Ind. Textile J. (11), 64-67 (1997).

Dannacher, J. , Schlenker, W. , and Grenzach, W. , The Mechanism of Hydrogen Peroxide Bleaching , Textile Chem. Color. 28(11), 24-28 (1990).

Goswami, K.K. , Das, N.N. , and Mukherjee , A.K. , SEM and IR Studies on Scouring and Bleaching of Linen, Ind. J. Fiber Textile Res. 20, 27-33 (1995).

Kalita, B. , Ramie-Silk Blends, Ind. Textile J. (11), 68-69 ( 1997).

Liang, C.Y. , and Marchessault, R.H. , Infrared Spectra of Crystalline Polysaccharides, II: Native Cellulose in the Region from 640 to 1700 cm-1, J. Polym. Sci. 39, 269-278 (1959).

10.

Moreau, J.P. , Bel-Berger, P. , and Tao, W. , Mechanical Processing of Kenaf for Nonwovens , TAPPI J. 78(2), 96-105 (1995).

11.

Morrison, W.H. , Akin, D.E. , Ramaswamy , G. , and Baldwin, B. , Evaluating Chemically Retted Kenaf Using Chemical, Histochemical, and Microspectrophotometric Analyses. Textile Res. J. 66(10), 6651-6656 (1996).

12.

Nezamoleslami, A. , Suzuki, K. , Nishida , T. , and Ueno, T. , Biobleaching of Kenaf Bast Fiber, Soda-AQ Pulp Using White-rot Fungus, TAPPI J. 81(6), 179-183 (1998).

13.

Pan, N.C. , Chattopadhyay, S.N. , and Day, A. , Ramie and Flax Fibers, Ind. Textile J. 5, 54-55 (1997).

14.

Pappas, C. , Tarantilis, P.A. , and Polissiou, M. , Determination of Kenaf Lignin in Crude Plant Material Using Diffuse Reflectance Infrared Fourier Transform Spectroscopy, Appl. Spectros. 52(11), 1399-1402 (1998 ).

15.

Ramaswamy, G.N. , Craft, S. , and Wartelle, L. , Uniformity and Softness of Kenaf Fibers for Textile Products , Textile Res. J. 65(12), 765-770 (1995).

16.

Ramaswamy, G.N. , and Easter, E.P. , Durability and Aesthetic Properties of Kenaf/Cotton Blend Fabrics, Textile Res. J. 67(11), 803-808 (1997).

17.

Ramaswamy, G.N. , Ruff, C.G. , and Boyd, C.R. , Effect of Bacterial and Chemical Retting on Kenaf Fiber Quality, Textile Res. J. 64(5), 305-308 (1994).

18.

Ramaswamy, G.N. , Wang, J. , and Soeharto, B. , Mercerization and Dyeing of Kenaf/Cotton Blend Fabrics, Textile Chem. Color. 31(3), 27-31 (1999).

19.

Romanoschi, O. , Romanoschi, S. , Collier , J.R. , and Collier, B.J. , Kenaf Alkali Processing, Cellul. Chem. Technol. 31, 347-359 (1997).

20.

Rowell, R.M. , Chemical Modification of Nonwood Lignocellulosics , in "Chemical Modification of Lignocellulosic Materials," D. N. Hon , Ed., 1996, pp. 229-245.

21.

Tao, W. , Calamari, T.A. , and Crook, L. , Carding Kenaf for Nonwovens, Textile Res. J. 68(6), 402-406 (1998).

One-Step Processing and Bleaching of Mechanically Separated Kenaf Fibers: Effects on Physical and Chemical Properties

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