Influence of Temperature on Stability of Multilamellar Liposomes in Wool Dyeing

Abstract

Liposomes are lipid vesicles that are composed of amphiphile molecules and can carry hydrophobic and hydrophilic materials. In this research work liposomes used as carrier for transfer of dye molecules into wool fibers. The preparation and production of multilamellar liposomes (MLV) from Soya lecithin were carried out and the behavior of liposomes at different temperature was studied. The effect of different concentration of liposomes in the dye exhaustion profile of two dyes (Namely, Irgalan Blue FBL and Lanaset Blue 2R) at two different temperatures of 85 degrees C and 95 degrees C on the wool fabric was investigated. The results showed that presence of liposomes in the dye-bath helps to increase the dye absorption on the wool fabric before 80 degrees C. Dyeing at higher temperature and longer time leads to a decrease in the final exhaustion along with increase in the liposomes concentration. Liposomes at high temperature converted to the disperse phospholipids unimers that may deposited on the fabric surface and may produce a hydrophobic barrier against absorption of dye. The presence of 1% o.w.f. (on weight of fabric) of liposomes at 85 degrees C improved the dye exhaustion of Irgalan Blue FBL on the wool fabric. The wash fastness properties of samples which dyed in the dye-bath containing liposomes also improved.

Low-Salt or Salt-Free Dyeing of Cotton Fibers with Reactive Dyes using Liposomes as Dyeing/Level-Dyeing Promotors

“…Liposomes are the assembling structures formed by surface-active biological lipids that are arranged with hydrophilic polar head groups exposed to the aqueous phase and hydrophobic fatty acid chains adhered together in the bilayer 4,5 . They form closed vesicles with a water core and an inner water domain embedded between the lipid bilayers 6 . Because liposomes are amphoteric compounds, they can wrap up various types of polar and nonpolar solutes.…”

“…Liposomes have been investigated as vehicles in wool dyeing with acid, disperse and metal-complex dyes, and wool and wool blend dyeing with liposomes resulted in better quality and energy savings and lower environmental impact 5,15–18 . The main advantages of using liposomes are an obvious reduction in the dyeing temperature (lower by approximately 10 °C compared with that of a traditional wool dyeing process); improved fiber quality, smoothness and mechanical properties of the dyed fibers; and an obvious reduction in the contamination load of the dye bath 6,19,20 . Recently, Marti et al .…”

Liposomes of phosphatidylcholine: a biological natural surfactant as a dispersing agent

“…In recent years, these vesicles have aroused a great deal of interest in the pharmaceutical, food and cosmetic industries. Liposomes have also been used in the textile industry during the last decade [1,2]. Commercial liposomes are used as dyeing auxiliaries, mainly for wool dyeing.…”

Lipid Role in Wool Dyeing

“…Due to their effective encapsulation capacity l i po s o me s h a v e fo un d num e ro u s ap p l ic a t i o n s in v ar io us fields, as drug delivery vehicles (Lasic, 1993). In recent years, liposomes have been used in textile industry as dyeing auxiliaries, mainly for wool dyeing Montazer et al, 2006;Barani & Montazer, 2008). Dyeing of wool and wool blends along with liposomes has demonstrated better quality, energy saving, and lower environmental impacts.…”