This document discusses the dyeing of textiles with natural dyes. It provides advantages like producing soft colors that are soothing to the eye and environmentally friendly. Disadvantages include difficulties reproducing shades and lack of technical knowledge. Natural dyes are classified in various ways, including by hue, origin, and chemical constitution. Mordants are used to fix dyes to textiles, and there are different types of mordants. Dyes can be applied through pre-mordanting, simultaneous mordanting, or post-mordanting methods.

1. DYEING OF TEXTILES WITH
NATURAL DYES
Let’s shake hand with Nature…
Mr. MURALIDHAR PATHAK
www.themegallery.com LOGO

2. INTRODUCTION
Non-substantive coloring matter.
Derived from the natural sources like plants, animal
and minerals.
Applied on textiles by the help of mordants.
Transition metal ions usually have strong co-
ordinating power.
www.themegallery.com LOGO

3. ADVANTAGES OF NATURAL DYES
 Soft, lustrous and soothing to the human eye.
 Range of colors by mix and match system.
 Produce rare color ideas.
 Natural dyes are usually renewable
 No disposal problem.
 Potential to earn carbon credit.
 Non-hazardous to human health.
 Depth of some of the natural dyes are enhanced with age
 Bleed but do not stain other fabrics
www.themegallery.com LOGO

4. DISADVANTAGES OF NATURAL DYES
 Difficult to reproduce shades.
 Difficult to standardize a recipe
 Low color yield
 Lack of availability of precise technical knowledge on
extraction and dyeing techniques.
 Dyed textile may change color when exposed to the
sun, sweat and air.
 Nearly all-natural dyes with a few exceptions require the
use of mordants to fix them on to the textile substrate.
www.themegallery.com LOGO

5. CLASSIFICATION
Natural dyes can be classified in a number of
ways.
1. Substantive Dyes & Adjective Dyes
2. Monogenetic Dyes & Polygenetic Dyes
3. On the basis of hues Red, Blue, Yellow & Black.
4. On the basis of origin vegetable, mineral and animal
origin.
5. Chemical constitution.
6. Method of application
www.themegallery.com LOGO

6. TYPES OF MORDANT
1) Metallic mordants
2) Brightening mordants
3) Dulling mordants
4) Tannins
5) Oils type mordants
www.themegallery.com LOGO

7. Method of application
1.Pre-mordanting
2.Simultaneous mordanting
3.Post-mordanting
www.themegallery.com LOGO

8. PRINCIPLE OF DYEING
www.themegallery.com LOGO