Electron Microscopical Analysis of Selected Dye Carriers Within Poly ( ethylene Terephthalate ) Fibers

Abstract

Carrier/ solvent pretreatment of poly ( ethylene terephthalate) (PET) prior to dyeing is an alternative to conventional carrier dyeing. Carrier penetration of the fiber and diffusion of the dye into the fiber are believed to be interrelated phenomena, even though there is little direct evidence that the carrier is being absorbed by the fiber. High resolution techniques of scanning electron microscopy and energy dispersive x- ray analysis were used to determine the location of the selected dye carriers, salicylic acid and anthranilic acid, within carrier/solvent pretreated PET fibers. Measurements of relative carrier concentration in and around the fiber revealed the presence of a significant quantity of carrier on the fiber surface, but smaller amounts of carrier had penetrated the fiber.

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References

Accelerant Dyeing of Hydrophobic Fibers—Principles and Mechanisms, Am. Dyest. Rep. 48, 37-45 (1959).

Brown, A.H. , and Peters, A.T. , Halogenated Benzenes as Carriers for Dyeing Polyester Fibers, Am. Dyest. Rep. 57, 281-288 (1968).

"Color Index, Additions and Amendments No. 13," 3rd ed., Lund Humphries, Bradford , London, U.K., 1974, p. 498.

Hemming, D.F. , and Datyner, A. , A Mechanism of Carrier Action in Dyeing Polyester with Disperse Dyestuffs, Textile Res. J. 45, 235-239 (1975).

Lang, L. , Ed., "Absorption Spectra," 1, Academic Press, New York, 1962, p. 93-94.

Lang, L. , Ed., "Absorption Spectra," 4, Academic Press, New York, 1964, p. 73-74.

Matkowsky, R.D. , Weigmann, H.-D. , and Scott, M.G. , Atmospheric Disperse Dyeing of Polyester , Textile Chem. Color. 20, 55-63 (1980).

Moore, R.A.F. , and Weigmann, H.-D. , Dyeability of Polyester after Carrier/Solvent Pretreatment, Textile Chem. Color. 13, 70-78 (1981).

Obendorf, S.K. , and Harrington, N.K. , The Effect of FR Finish Location on the Reduction of Flame Retardancy of Cotton Fabrics by Inorganic Salts , Textile Chem. Color. 14, 238-241 (1982).

10.

Obendorf, S.K. , and Klemash, N.A. , Electron Microscopical Analysis of Oily Soil Penetration in Cotton and, Cotton/Polyester Fabrics, Textile Res. J. 52, 434-442 (1982).

11.

Obendorf, S.K. , Namaste, Y.N. , and Dumam, D.J. , A Microscopical Study of Residual Oily Soil Penetration in Cotton and Cotton / Polyester Fabrics , Textile Res. J. 53, 375-383 (1983).

12.

Obendorf, S.K. , and Solbrig, C.M. , Distribution of the Pesticides Malathion and Methyl Parathion on Cotton/ Polyester Fabrics before and after Laundering as Determined by Electron Microscopy, in "Performance of Protective Clothing, ASTM-STP 900," R. L. Barker and C. L. Coletta , Eds., American Society for Testing Materials Philadelphia, PA, (1986), p. 187-204.

13.

Solbrig, C.M. , and Obendorf, S.K. , Distribution of Residual Pesticide within Textile Structures as Determined by Electron Microscopy, Textile Res. J. 55, 540-546 (1985).

14.

Papuga, R.J. , Livengood, C.D. , and Mock, G.N. , Effect of Solvent Pretreatment on Dyeing of Polyester, Textile Chem. Color. 15, 91-100 (1983).

15.

Ravichandran, V. , Wilde, M. , Gadoury , D.M. , Lemley, A.T. , and Obendorf , S.K. , Some Observations on the Effect of Selected Dye Carriers on Polyethylene Terephthalate) Textile Chem. Color. 19(11), 35-37 (1987).