Peacock Shellac TN in flakes
|
|
Shellac is produced by refining of seedlac by means of three different processes ( heat process, ethanol extraction, chemical bleaching ).
The raw material for manufacturing of seedlac is the exudate of the insect Kerria lacca, kerr., Fam. Coccidaea. Countries of origin are India and Thailand, China and Vietman. Shellac is an amorphous, thermoplastic and tough resin , which forms high-gloss films. It is soluble in low alcohols ( ethanol ) and aqueous-alkaline media but stable against hydrocarbons. It is physiologically harmless and biodegradable. |
|