Size Free Weaving, Cotton Warp Yarn, High Speed Weaving Machine, Flexible Rapier Weaving Machine

Conclusions

Actual weaving trials and related investigations conducted on a modern high-speed weaving machine have at least demonstrated the mechanical feasibility of producing cotton fabrics without the centuries-old tradition of warp sizing. To achieve efficient size-free weaving, the quality of warp yarn must be considerably superior and consistent in properties to that of the (present) run-of-the-mill type of yarn. It means that the yarn for size-free weaving must be of the highest possible uniformity and consistency and with the least amount of hairiness. Obviously, this is a function of the selected fiber quality, yarn structure, and spinning parameters. Further, a simple washing and/or drying (heating) of a cotton warp yarn seems to be adequate for preparing a loom beam without the traditional warp sizing. A ceramic-coated loom reed also appears to improve fabric quality by reducing the pill-like fuzzy defects mentioned previously. The continuing research is expected to produce new knowledge that is essential to accomplishing commercially successful size-free weaving of especially dense cotton fabrics.

References

1) Sawhney A. P. S., et al. Preparation and weaving of cotton yarns without the traditional warp sizing: Some new concepts. Proc. Beltwide Cotton Conferences, National Cotton Council of America, Memphis, TN, January 2000.

2) Sawhney A. P. S., et al. A successful weaving trial with a size-free cotton warp (on a fly-shuttle loom) Indian Journal of Fibers and Textile Research (IJFTR), Vol. 29, p. 117-121, June 2004.

3) Sawhney, A. P. S., Dumitras, P.G., Sachinvala, N.D, Calamari, T.A., Bologa, M.K., and Singh, K.V. Research Approaches for reducing or eliminating warp sizing in modern high-speed weaving. American Association of Textile Chemists and Colorists (AATCC), September 2005.

Acknowledgments

The researchers duly acknowledge the National Program Staff, ARS, USDA, and the National Cotton Council of America, under whose directions and guidance the presented research was conducted. The cooperation of fellow-researchers in the Cotton Structure & Quality (CSQ) and the Cotton Chemistry and Utilization (CCU) Units at the Center is also acknowledged. Special thanks are due to Mr. Jim Sandberg and Mr. Jerome Jeanpierrs for their considerable assistance in the day-to-day research operations.

About the Authors:

The authors are associated with Southern Regional Research Center, Agricultural Research Service, USDA, New Orleans, LA.

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