Can someone please explain simply how a dye attaches to a fibre and what type of bond it is.

How does turmeric and an azo dye attach to both wool and cotton.

Question

Can someone please explain simply how a dye attaches to a fibre and what type of bond it is.

How does turmeric and an azo dye attach to both wool and cotton.

abb0t · Answer

Isn't turmeric a plant?

anonymous · Answer

yes but tumeric powder is used as a natural dye to dye fabrics. It creates a yellow/brown colour.

anonymous · Answer

http://www.4college.co.uk/a/Cd/fabric.php does this help?

anonymous · Answer

Not only do the dyes have polar or ionic groups, but fabrics such as cotton and wool also contain polar groups such as –OH (hydroxyl) and –NH (amide) which help the dye attach to the fabric and chemical bonds are formed between the dye and the fabric, which holds the two together.

bonds between them may be ionic bonds, hydrogen bonds etc.

anonymous · Answer

is there any difficulty?

chmvijay · Answer

LOL i have already answered it right :)

chmvijay · Answer

http://openstudy.com/study#/updates/51baa2b7e4b066f3d785f0f9

anonymous · Answer

:) oh yes.

anonymous · Answer

Thank you both. Yesterdays answer was really helpful too- i just didnt know the type of bond. Thanks!!!