Effect of enzymatic pre-treatments on the dyeing of cotton fabric with the peels of dragon fruit (Hydrocereus undatus) / Rafdiah Razali

Razali, Rafdiah (2013) Effect of enzymatic pre-treatments on the dyeing of cotton fabric with the peels of dragon fruit (Hydrocereus undatus) / Rafdiah Razali. Degree thesis, Universiti Teknologi MARA.

Abstract

In this study, the application of peels of dragon fruit as natural dye on cotton treated with cellulase and a-amylase was examined. Screening of the extraction methods show that darker colour was obtained when boiling extraction was used and the extraction was used throughout the study. Results of treated fabrics show better dye uptake when compared to untreated fabrics in the absence of mordants. The effect of mordants was evaluated based on the colourfastness of dyed fabrics. Results indicate that the treated fabric has a better colourfastness to washing in the absence or presence of mordants compared to untreated fabrics. Different enzymes produce different effect on fabric. Fabric treated with cellulase have better colourfastness to washing when compared to a-amylase with the used of mordants. Results indicate the use of slaked lime improved the colourfastness to washing properties of the treated and untreated fabrics. However poor colourfastness to light was observed for all samples either treated or untreated.

Metadata

Item Type: Thesis (Degree)
Creators:
Creators
Email / ID Num.
Razali, Rafdiah
UNSPECIFIED
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Omar, Khadijah (Assc. Prof. Dr.)
UNSPECIFIED
Subjects: T Technology > TP Chemical technology > Textile bleaching, dyeing, printing, etc. > Natural dyes
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Textile Technology
Keywords: Enzymatic pre-treatments, Cotton fabric, Dragon fruit
Date: January 2013
URI: https://ir.uitm.edu.my/id/eprint/62669
Edit Item
Edit Item

Download

[thumbnail of 62669.pdf] Text
62669.pdf

Download (98kB)

Digital Copy

Digital (fulltext) is available at:

Physical Copy

Physical status and holdings:
Item Status:
On Shelf

ID Number

62669

Indexing

Statistic

Statistic details