Surface modification of polyester by low temperature plasma treatment and its effect on coloration

Abstract

The effect of low temperature plasma (LTP) on polyester (PET) is investigated by examining the changes in the dyeing properties of treated PET fabrics. An optimum condition for LTP treatment is determined by orthogonal analysis and this treatment condition was used through out the study. After LTP treatment, the PET fabric samples exhibit better hydrophilicity and the dyeability of the fabric is increased and such improvement is more pronounced in the case of high energy disperse dyes. Scanning electron microscope (SEM) observation also reveals that the surface of the treated PET fibre becomes rough with the formation of microtroughs.

Optimizing color fading effect of cotton denim fabric by enzyme treatment

“…11,19 The surface of fabric becomes more hairy and forming a layer of fuzz on surface. 3 For specimen treated under vigorous agitation, a biopolishing effect is obtained.…”

“…However, there is a trend of decrease of K/S Sum values when temperature increases from 50 to 60 C. It is because the enzyme reaction is activated by higher temperature within optimum temperature range, thus more surface fibers on denim fabrics are hydrolyzed by cellulase 6 and the weaken fibers are further removed by abrasion of fabrics and mechanical agitation. 18,19 The indigo dye particles are also removed with the cotton fibers. As the quantity of K/S Sum value is linearly related more or less to the concentration of the colorant in the substrate (i.e., shade), thus an assumption could be made that there is loss of dye from denim fabric during enzyme treatment.…”

Surface characterisation of low temperature plasma-treated wool fibre

“…This may have been due to the fact that the functional groups studied were the oxidation products of cystine. In general, the nature of the plasma depends much on the nature of the gas used [14,15]. If oxygen gas, which is oxidative in nature, is used as the plasma gas, the wool surface will be oxidised to such an extent that the oxidation products signal can be easily detected.…”

A Study of the Factors Affecting the Colour Yield of an Ink-Jet Printed Cotton Fabric

“…Previous studies (Sui et al 1994, Yeung et al 1997, Lam and Cheng 1998 have shown that it can provide a simple and convenient way of determining the optimum condition and level of importance of different factors in a production process.…”