EVALUATION OF THE ECOLOGICAL PROPERTIES OF COTTON FABRIC AND SILK FABRIC DYED WITH COLORANTS EXTRACTED FROM THE TERMINALIA T. CATAPPA LEAVES

Hoang Thi Linh; Tran Van Chat; Vu Duc Tan

Hoang Thi Linh Hung Yen University of Technology and Education
Tran Van Chat Hung Yen University of Technology and Education
Vu Duc Tan Ha Noi Industrial Textile Garment University

Keywords: natural colorants, ecological properties, silk, cotton

Abstract

This paper presents some results of the evaluation of the Ecological properties of cotton fabric and silk fabric dyed with colorants extracted from the Terminalia T. catappa leaves. The ecological criteria are standardized according Okotex: pH value of Cotton fabric is 6.2, of silk fabrics is 6.5; dyed fabric does not contain formaldehyde and azo Amin (are the carcinogenic substances and skin allergies), colorfastness to washing of both fabrics are fairly high (level 3-4 and 4), colorfastness to perspiration alkaline of silk grade 4-5, the Cotton grade 4; colorfastness to perspiration acidity of silk grade 4, of Cotton grade 3-4; on the fabric no heavy metals.

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