A study of dyeing cotton yarn with natural colors from Eupatorium odoratum L.

Abstract

A study of natural dyeing of cotton yarn from sap tiger leaves aimed at 1. A study of dyeing cotton yarn with natural dyes from leaves of Eupatorium odoratum L. 2. A study of the properties of cotton yarn dyeing fabrics with natural dyes from the leaves of the Eupatorium odoratum L. The study found Boiling process to clean 700 g of cotton fibers, use clean water 7.5 liters, 2.5 grams of caustic soda, 5 grams of soda-ass and 5 grams of soap, boiled at boiling point for 30 minutes. Natural dyeing with tiger sage leaves revealed that 500 g of fresh tiger sap leaves, 10 liters of water and 30 g of table salt were used for dyeing at a temperature of more than 80 degrees Celsius for 60 minutes. Four types of modifiers or coloring agents were used, namely 1) color support, color support ratio of 3 g. per 1 liter of water gives light green dye 2) Alum, alum ratio of 10 grams per 3 liters of water gives a yellow-green dye 3) Iron rust, 3 grams of iron rust ratio per 1 liter of water gives a grayish-green dye 4) Lime, the ratio of lime 3 grams per water 3 liters for a green dye Washing off excess paint, ratio of dishwashing liquid 10 cc per 10 liters of water Properties of cotton yarn after dyeing Color fastness to sweat, alkaline conditions. Alum's modulation is level 4 good, and all mods are not resistant to acidic sweat. Color fastness to water was found that Modance Lime was at level 5 the best. Color fastness to washing found that Modance Joon paint, alum and lime were at level 4-5, good to best. The color fastness to abrasion in dry condition was found that all modulations were at level 4-5, good to best. The color fastness to abrasion in wet condition was found that the paint's modulus was at level 3, the color fastness was moderate, it was found that the paint's modacity and lime was at the level 4 was good.

Keywords : Staining, Cotton yarn, Natural dye, Eupatorium odoratum L.