Daffodil International University

Faculty of Engineering => Textile Engineering => Topic started by: Md. Al-Amin on May 22, 2018, 01:28:17 PM

Title: Why So Called Vat Dye?
Post by: Md. Al-Amin on May 22, 2018, 01:28:17 PM

The word vat means, ‘Vessel’. The dyes take their name from vatting. The vat dyes are naturally coloring matter and kept in wooden vat and make solubilise vat dyes by the process of formantation – so it is called vat dyes. They are applied in a special kind of a dyebath in which the dye is reduced to a soluble form by means of a strong reducing agent, such as hydrosulphite. The vat dyes are insoluble and cannot be used directly and requires vatting. Among all the dyes, it has the best fastness properties.

Title: Re: Why So Called Vat Dye?
Post by: fahmidasiddiqa on May 23, 2018, 12:14:54 PM

nice to see you becoming a textile expert...

Title: Re: Why So Called Vat Dye?
Post by: smriti.te on May 28, 2018, 12:02:27 AM

We are very proud that our co ordinatore officers are also very interested on textile sector...go ahead...

Title: Re: Why So Called Vat Dye?
Post by: Kazi Rezwan Hossain on May 28, 2018, 10:45:04 AM

good

Title: Re: Why So Called Vat Dye?
Post by: Sharminte on August 02, 2018, 12:05:12 PM

welcome to textile sector  :)

Title: Re: Why So Called Vat Dye?
Post by: Md. Al-Amin on October 15, 2018, 10:30:43 AM

Thanks

Title: Re: Why So Called Vat Dye?
Post by: parvez.te on October 17, 2018, 12:41:22 PM

informative post

Title: Re: Why So Called Vat Dye?
Post by: Md. Al-Amin on October 17, 2018, 01:19:45 PM

thanks.