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Dying of fabrics .

Introduction

dyes are coloured substance s which can adhere of materials andare used t give colour to paper food stu s and various textilesuch as cotton wool synthetic bres , silks .for example ,ali arin,indigo .congored, etc .chemically a dye contain !

characteristics of a dye

i" It must have a suitable colour .

ii" It must be capable of being xed to the material .

iii" #hen xed it must be fast to detergent ,soap ,water , drycleaning solvent , light and dilute acids .

experiment

to dry wool and cotton clothes with malachitegreen .

re$uirements %&& ml beaker ,tripod stand , wire gau e , glass

7/25/2019 Dying of fabrics.docx

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7/25/2019 Dying of fabrics.docx

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