plz plz tell me how jute is chemically treated and bleached with other fibres and dyed plz
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Jute fibres have poor resistance to alkali due to presence of hemicelluloses. Alkali treatment extracts out hemicellulose from the jute fibre structure making it weak. With treatment of strong (18%) alkali, jute fibres become much weaker but develop crimp due to irregular swelling, a process popularly known as the woollenization of jute.
Jute fibres are weakened and destroyed by acids. The cellulose chains disintegrate due to hydrolysis of the glucoside oxygen atom (which joins glucose units to form a cellulose chain). Inorganic acids have a more adverse effect on jute than organic acids as they hydrolyse cellulose chains more rapidly.
hope the answer is useful....
Jute fibres are weakened and destroyed by acids. The cellulose chains disintegrate due to hydrolysis of the glucoside oxygen atom (which joins glucose units to form a cellulose chain). Inorganic acids have a more adverse effect on jute than organic acids as they hydrolyse cellulose chains more rapidly.
hope the answer is useful....
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