The study of natural dyes from dried longan branches by using aluminium sulfate as a modant

Abstract

The objectives of this research were 1. study the dyeing process from dried longan branches using alum as a mordant and 2. design woven fabric patterns dyed from dried longan branches using alum                 as a mordant. Study of the dyeing process is the preparation of cotton yarn before dyeing. Cleaning cotton yarn Conditioning cotton yarn before dyeing Dyeing using dried longan branches Dyeing time Using a color fixing agent, namely alum, and washing off excess dye in dyeing. From the experiment it was found that Cotton fibers dyed with dried longan branches using alum as a fixing agent. The color will be a pink-cream tone. The resulting color will be bright. Properties of fabrics dyed with natural dyes from longan branches.      It was found that dyed cotton yarn came from dried longan branches. The fibers are colorfast to washing.       Is at passing level Color fastness to sweat, acidic conditions Soaking in the color fixing agent, alum, makes the color fastness to perspiration in alkaline conditions at a passing level. and color fastness to abrasion in dry conditions is at a passing level. The results of the experiment were applied in the design of 5 woven fabric patterns. Then the product design concept was analyzed and presented to 5 design experts. Using a simulation model based on the design pattern. Propose experts to evaluate the model and develop it. Create a woven pattern in an appropriate format. Results of pattern design evaluation Experts expressed their opinions on the suitability of weaving patterns in general. Pattern 1 has satisfaction at a moderate level (𝑥̅ =3.3) and (S.D.=0.55). Pattern 2 has satisfaction at a high level (𝑥̅ =3.9) and (S.D.=0.48). Pattern 3 has satisfaction. Satisfaction is at a high level (𝑥̅ =3.9) and (S.D.=0.67) Pattern 4 is satisfied at a high level (𝑥̅ =3.7) and (S.D.=0.52) and pattern 5 has a high level of satisfaction (𝑥̅ =3.6) and (S.D.=0.52).