Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Materials 2009, 2(2), 661-673; doi:10.3390/ma2020661
Review

Characteristics of Color Produced by Awa Natural Indigo and Synthetic Indigo

1,*  and 2,*
Received: 12 May 2009; in revised form: 28 May 2009 / Accepted: 9 June 2009 / Published: 9 June 2009
(This article belongs to the Special Issue Functional Colorants)
Download PDF [704 KB, uploaded 9 June 2009]
Abstract: Color of cloth dyed with Awa natural indigo is quantitatively compared with color of the cloth dyed with synthetic indigo. Results showed that: 1) color produced by Awa natural indigo is bluer and brighter than color produced by synthetic indigo; 2) a single Gaussian function fits the profile of the running of color produced by Awa natural indigo and the running of color produced by synthetic indigo prepared with sodium hydrosulfite approximates a linear sum of two Gaussian functions; 3) before and after washing, color is quantitatively more uneven when produced by Awa natural indigo than when produced by synthetic indigo; 4) the diffusion coefficient of Awa natural indigo is lower than that of synthetic indigo; 5) color superiority of Awa natural indigorelates to smaller diffusion coefficient, slower reduction, poorer penetration, and higher dye aggregation.
Keywords: Awa natural indigo; synthetic indigo; brightness of color; running of color; color unevenness; color fading Awa natural indigo; synthetic indigo; brightness of color; running of color; color unevenness; color fading
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Kawahito, M.; Yasukawa, R. Characteristics of Color Produced by Awa Natural Indigo and Synthetic Indigo. Materials 2009, 2, 661-673.

AMA Style

Kawahito M, Yasukawa R. Characteristics of Color Produced by Awa Natural Indigo and Synthetic Indigo. Materials. 2009; 2(2):661-673.

Chicago/Turabian Style

Kawahito, Miyoko; Yasukawa, Ryoko. 2009. "Characteristics of Color Produced by Awa Natural Indigo and Synthetic Indigo." Materials 2, no. 2: 661-673.


Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert