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ABSTRACT:
The colour fastness properties of the colourant extracted from the brake of acacia leucophoea on cotton have studied using different temperate (50°C, 60°C and 70°C) and different hours washing fastness (6h, 7h, 8h)of various chemical mordants. So in present investigation, bleached cotton fabrics were dyed with different mordants. Dyeing was carried out by pre-mordanting, post mordanting and simultaneous mordanting. Fastness properties of the dyed sample, pre mordanting methods good results. The colour fastness properties dyed fabrics washing, light, fastness, GCMS were studied.
KEYWORDS: Extraction, natural dyes, flowers, Acacia leucophloea, cotton, textiles, GCMS
INTRODUCTION:
Colour is one of the elements of natural that made the human living more aesthetic and fascinating in the world. They are supposed to be associated with emotions, human qualities, seasons, festivals and passions in our life. In the past at the dawn of civilization, the people tried to ornament their surroundings and the clothing similar to that of natural colours observed in the plant, soil, sky and other sources. This gave birth to a new science of colours from natural origin. The art of dyeing was as old as human civilization. From the historical records it is learnt that natural colourants were only available to the people during Greco-Roman periods. This is evident with the wall paintings of Ajanta, Ellora and Sithannavasal which had been done with natural coloring matters still demonstrate the efficacy of dyeing craft that has been inherited from ancient times.
The fore stated emerging environmental awareness have compelled the colorists to go back to natural dyes and the other sources from natural origin. Natural dyes minimize the level of environmental pollution and substantiate the nutritional value of the land. On the application part of the textiles, as apparels dyed with the natural dyes they are aesthetically appealing non-toxic to the skin and anti-allergic1.Natural dyes are deep and soft in color shades when compared with synthetic dyes. And they are useful for human health because they have the antibacterial, insecticidal - and healthy-properties that are due to the origin of them- extracted from herb plants. Besides, with the increase of the worldwide concern for the environmental circumstances, many are anxious for the possibility of the natural dyes because they can overcome the defects of synthetic dyes...