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Abstract

Relaxation shrinkage in wool fabrics is normally measured after relaxation of the fabric in water or steam. Values obtained for relaxation shrinkage after wet relaxation depend on the manner in which the fabric is dried. If the wet fabric is dried directly in an oven, the values for relaxation shrinkage are low, but if the fabric is allowed to dry under ambient conditions before oven drying, values are high. Steaming procedures produce relaxation shrinkage values that are considerably lower than those obtained with wet relaxation. An interlaboratory trial conducted using thirteen commercial worsted fabrics has determined the repeatability and reproducibility of different meth ods for calculating the magnitude of relaxation shrinkage. The practical significance of the different methods has been assessed from garment trials where fabric shrinkage, resulting from making-up and from wear, was examined. A procedure for measuring relaxation shrinkage is recommended.

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References

Australian Wool Corporation test method no. 10, Method of Test for Determining the Static Relaxation of Woven Fabrics, 1978.

Baird, K. , Dimensional Stability of Woven Wool Fabrics: Hygral Expansion, Textile Res. J. 33, 973-984 (1963).

Baird, K. , Relaxation Shrinkage of Wool Fabrics: Its Release with Regain and Time, Textile Res. J. 31, 624-629 (1961).

British Standard 4323: Method for the Estimation of Dimensional Change Induced by a Free-Steam Vacuum Garment Press, 1968.

British Standard 4323: Method for Determination of Dimensional Change of Fabrics Induced by Free Steam, 1979.

Cednäs, M. , Dimensional Stability of Wool Fabrics, J. Textile Inst. 52, T251-T271 (1961).

Cednäs, M. , The Shrinkage Characteristics of Fabrics and Their Effect upon Garment Pucker , Clothing Res. J. 2, 122-135 (1974).

Cookson, P.G. , De Boos, A. G., Roczniok, A. F., and Ly, N. G., Measuring Hygral Expansion in Woven Wool Fabrics, Textile Res. J. 61, 319-327 (1991).

German Standard DIN 53-894 Part 2, Testing of Textiles; Determination of Dimensional Change of Textile Fabrics, Steaming on Ironing Machines, 1979.

10.

Hori, M. , Relaxation Shrinkage, Hygral Expansion and Mechanical Properties, International Wool Secretariat Ichinomiya Technical Centre, Japan, May 1986.

11.

Hori, M. , The Measurement of Shape Deformation in Wear of a Men's Jacket, and its Commercial Development, in "Proc. 1st. Japan-Australia Joint Symposium on Objective Measurement, Kyoto," 1982, pp. 371-373.

12.

International Organization for Standardization, ISO 139-1973 (E), Textiles—Standard Atmospheres for Conditioning and Testing, 1973.

13.

Ly, N.G. , Denby, E.F. , and Hoschke, B.N. , A Quick Test For Measuring Fabric Dimensional Stability, Textile Res. J. 58, 463-468 (1988).

14.

Medley, J.A. , Relaxation Phenomena and Shrinkage Testing in Woven Wool Cloth, Wool Sci. Rev. 33, 19-30 (1967).

15.

Medley, J.A. and Elsworth, F.F. , Dimensional Stability of Woollen and Worsted Cloths, in " Proc. 3rd. Int. Wool Text. Res. Conf ., Paris," vol. IV, 1965, pp. 423-433.

16.

Shaw, T. , The Dimensional Stability of Woven Wool Fabrics, Wool Sci. Rev. 55, 43-81 (1978).

17.

Shaw, T. , The Dimensional Stability of Woven Wool Fabrics and its Effects on the Garment Making Process, International Wool Secretariat Technical Information Bulletin No. TRB-12, 1986.

18.

Speakman, J.A. and Cooper, C.A. , The Adsorption of Water by Wool, Part I: Adsorption Hysteresis, J. Textile Inst. 27, T183-T185 (1936).

19.

Wemyss, A.M. , and White, M.A. , Prüfung der Dimensionsstabilität von Wollstoffen beim Austrüsten und Konfektionieren, Melliand Textilber. 68, 509-513 ( 1987).

20.

WIRA Report 239, Quality Control of Cloth Shrinkage— The WIRA Steaming Cylinder, September 1974. Manuscript received October 24, 1990; accepted December 27, 1990.

Measurement of Relaxation Shrinkage in Woven Wool Fabrics

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