Chimica all'ITI Moda
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Tintura di fibre naturali con coloranti estratti da vegetali.
Le tinture sono state effettuate con la classe 4^M ITI Moda in laboratorio di chimica con la guida del prof. Antonio De Angelis e l'aiuto dell'assistente tecnico Antonio Paiotta.
Descrizione del procedimento:
- tagliare a pezzetti le barbabietole rosse e metterle nella bacinella;
- tagliare il tessile da tingere con le forbici;
- filtrare il colorante ottenuto riscaldando per un’ora e mezza i tocchetti di barbabietola in acqua distillata, sale ed aceto di vino bianco;
- la stoffa viene messa a tingere nel colorante estratto dalle barbabietole, riscaldandola nel becher su piastra a 80 gradi celsius;
- si estraggono le pezze colorate e le si lascia asciugare su carta assorbente;
- si possono potenziare e diversificare i colori di origine vegetale per aggiunta di pigmenti minerali.
Tinture di fibre
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