Yaa Natural Dyeing Of Cotton Fiber Stuff Using Terminalia Chebula Together With Turmeric Part-2

NATURAL DYEING OF COTTON FABRIC USING TERMINALIA CHEBULA (KADUKKAI) AND TURMERIC (CURCUMA LONGA) PART-2
Rajan.S¹
Textile Chemistry, SSM College of Engineering,
Komarapalayam, Namakkal, India.
srajusri321@gmail.com¹
Gopinath.M²
Textile Chemistry, SSM College of Engineering,
Komarapalayam, Namakkal, India.
gopi.tc007@gmail.com²

Part-1

NATURAL DYE - AN OVERVIEW
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The bulk of natural dyes are vegetable dyes from flora sources roots, berries, bark, leaves, in addition to woods in addition to other organic sources such as fungi in addition to lichens.

PURPOSE OF CHOOSING TERMINALIA CHEBULA (KADUKKAI) in addition to TURMERIC (CURCUMA LONGA):

1. It protects the peel against UV radiations from the sun.
2. It tin endure used to brand the fry wears.
3. It is a potent antibacterial, non- toxic, non-allergic in addition to antifungal chemical factor that protects the human body.
4. Balancing of internal trunk hormones thence prevents critical weather condition such as diabetes.
5. The pollution charge is real much less in addition to Waste of the dyes tin endure used as the manure or fertilizer.
6. To promote the ancient in addition to traditional Natural Dyeing Technology.

IMPORTANT USES OF NATURAL DYES
Nature is amount of fascinating colours without which life would bring been slowly in addition to monotonous. Until the 19th century natural dyes were the primary colorants for textiles. Artificial dyes were so introduced. The latter are easier to apply than the natural dyes. Besides a broad attain of available colours, higher reproducibility in addition to improved character of dyeing could endure achieved at lower specific cost. Natural dyes toll bring to endure lowered considerably in addition to the character degree of the dyeing needs substantial improvement. According to Pan et al (2003) the concept for production of natural dyes alongside lowered specific toll involves purpose of inexpensive by- products from other agricultural activities, similar bark from the timber manufacture or leaves from abundantly available plants as deodar, jackfruit in addition to eucalyptus. Synthetic dyes are non-biodegradable. There is a bespeak of replacing these alongside natural dyes inwards textile coloration addressing issues to practice alongside environmental awareness, ecology, pollution command in addition to sustainability. Natural dyes are neither toxic nor polluting. Considerable query has been done around Blue Planet to abide by novel sources of natural colouring agents in addition to particularly those alongside lower costs inwards social club to brand these textile products as pop as possible. Most of the natural dyed textiles are imported from Third World Countries in addition to Republic of Republic of India is even so a major producer of natural dyes.

Natural dyeing

CATEGORIES OF NATURAL DYES

Substantive dyes:

• Whereby no mordant (dye fixes) are required to laid the colors.

Vat dyes:

• Whereby fixing the colors involve the oxidization process.

Mordant dyes:

• Whereby the dyes require the purpose of an additive, normally some shape of mineral, to laid the colors.

WHY GO FOR NATURAL DYE?
Ever looked at a vast landscape in addition to go, "Wow, I could simply await at this forever?" Sure, nosotros are all captivated yesteryear the richness of the colours of Mother Nature. Influenza A virus subtype H5N1 leafage volition never bring the same shade of light-green throughout its life. Yet, the colours are all as oculus pleasing.

So why should you lot purchase naturally dyed products? 3 reasons:

• Even if they fade, the colours are even so oculus pleasing in addition to are non garish similar their synthetic counterparts.
• They bring therapeutic properties because they are made from products inwards nature.
• Less guide a opportunity to railroad train peel weather condition such as rashes in addition to eczema particularly for babies.

TYPES OF DYE SOURCES
In Blue Planet of natural cloth dyeing, at that spot are 3 sources where the creative someone may larn their paint bases from:

• Plants – such as Marigold which produces a rich yellow.
• Animal/Insect – such as Cochineal, an insect that lives on cacti that produces a deep blood ruddy due to the carminic acid constitute inwards them.
• Minerals, colored clay or world oxide – such as ochre.

DEFINITION OF NATURAL DYES
The discussion ‘natural dye’ covers all the dyes derived from the natural sources similar plants, animate beingness in addition to minerals. Natural dyes are generally non-substantive in addition to must endure applied on textiles yesteryear the help of mordant, normally a metallic element salt, having an affinity for both the colouring affair in addition to the fibre. Transition metallic element ions normally bring potent coordinating might and/or capable of forming calendar week to medium attraction/interaction forces in addition to thus tin human activity as bridging stuff to practice substantively of natural dyes/colorants when a textile stuff beingness impregnated alongside such metallic element tabular array salt (i.e. mordant) is subjected to dyeing alongside dissimilar natural dyes. Usually having some mordant able groups facilitating fixation of such dye/colorant. These metallic element mordents later on combining alongside dye inwards the fibre, it forms an insoluble precipitate or lake in addition to thus both the dye in addition to mordant larn fixed to buy the farm launder fast to a reasonable level. 

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