Abstract
In this study the existing process (3 steps) and proposed process (2 steps) were evaluated during dyeing of denim fabric with fluorescent dye. It compared the effectiveness of these two processes of fluorescent dyeing in the textile industry. Here at first the grey denim fabric was pretreated by scouring and bleaching. Then the fabric was dyed in existing process i.e. through catanizing, dyeing and binding at 10% and 15% shades. Again the pretreated fabric was dyed in proposed process i.e. through catanizing and (dyeing and binding) with same shades. Then the properties of two types of dyed fabric were compared. This study provides a set of experimental results, discussion and comparison between the two processes. The results show that the proposed process has less power and time consumption and more water savings compared to existing process. So the evaluation reflected that the proposed process was much more effective than existing process of denim dyeing with fluorescent dye.
Highlights
Bangladesh is in 4th position in textile in world survey [1]
The denim fabrics were dyed with fluorescent dye in various shade percentage
Calculation of small color Differences for acceptability CMC (Color Measurement Committee) values for different shade percentages are estimated from the dyed fabrics by existing process & proposed process
Summary
Bangladesh is in 4th position in textile in world survey [1]. In our country mainly woven and knit fabrics are used in garments sector. Dyed fabric or white fabrics are used in garments sector Their almost all dye used in Bangladesh. Nowadays the application of fluorescent dye for both woven and knitted fabrics are increasing day by day for its brilliance color appearance the fastness properties are not so good. The brilliant bluish red rhodamines were found to exhibit rather better fastness properties on textiles and they are the most important classes of fluorescent dyes for a wide range of application. Research aimed at producing new fluorescent dyes for using in the coloration of textile, coating and plastics has continued in recent years with the objectives of extending the available product shade range enhancing fluorescent intensity and improving other useful application properties such as light fastness and thermal stability. The use of hemi cyanine dyes to bring the effect that is similar to fluorescent effect [5]
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