CSV is a serious problem that occurs on the great majority of Indigo dyeing equipment in which yarns dyed on one side of the machine are a different shade from the yarns on the opposite side. This problem is so common that it is generally accepted as unavoidable, especially in sheet ranges. Basically, the problem arises as a result of the uneven distribution of Indigo within the dye box:  The Indigo dye is initially mixed in a feed tank at concentrations of from 70-100 g/l. This ...Read More

Tags: Indigo Dyeing

                        This is a guest post by Harry Mercer The problem of treating wastewater from denim dye waste is significant in many developing countries. Either the costs of treating these wastes affects profit margins or the waste goes untreated and is discharged directly into rivers. The most serious pollution problem results from the use of sulfur dyes in denim. ...Read More

Tags: Environment, Guest Post, Indigo Dyeing

Indigo has been in use as a blue colorant for thousands of years as a natural dye, which was produced from the Indigophera plant in India and China and with woad in Europe. Indigo cultivation was introduced in the Americas in the 18th century, first in the West Indies and then in South Carolina. Indigo has throughout history been the colorant most in demand and current production levels are reported to be around 17,000 tons per year. Indigo was employed as a blue dye for wool primarily, ...Read More

Tags: Indigo Dyeing

  This is a technical writeup on various types of dyes used in Denim Dyeing by one of our guest writers - Adnan Indigo Dyes Background Indigo, or indigotin, is a dyestuff originally extracted from the varieties of the indigo and woad plants. Indigo was known throughout the ancient world for its ability to color fabrics a deep blue. Egyptian artifacts suggest that indigo was employed as early as 1600 B.C. and it has been found in Africa, India, Indonesia, and China. The dye imparts a ...Read More

Tags: Indigo Dyeing

Rope Dyeing is considered a superior dyeing technology where the dyeing uniformity achieved is better than other Indigo Dyeing technologies like Slasher Dyeing. However, Rope Dyeing is a also a more difficult dyeing technology. One needs to master its nitty gritties to get the best out of the system. I , recently came across a very well written article on Rope Dyeing and thought it appropriate to share here.  The article mentions in great details the technical points to be kept in ...Read More

Tags: Indigo Dyeing