Color, Fastness, and Antimicrobial Properties of Wool Fabrics Dyed with Helichrysum Arenarium Subsp. Aucheri Extract

Catechu liquor, which is deep brown-red in color, was purified with a micro-filtration membrane and the stability of catechu dye to different levels of temperatures and pH were investigated in this paper. The effects of the dyeing conditions on color characteristic values and color fastnesses of the dyed wool fabrics were also investigated. The results show that the liquor of catechu dye is stable at pH values of 3-7 and its color changes to a deeper brown-red when its pH value is above 8. The preferable dyeing conditions for wool fabric with refined powder catechu dye are as follows: dyeing temperature of 100±C, pH value of 6.5 for the dye bath and catechu dye of 1-4% (o.w.f). The dyed wool fabric has good color fastnesses to washing, alkali perspiration and dry rubbing. However, its color fastness rating to wet rubbing is poor, ranging from 2-3. Further research will be needed on this aspect.

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Color fastness of fabrics after dyeing with fungal dyes

International Journal of Clothing Science and Technology ◽

10.1108/ijcst-12-2019-0196 ◽

2020 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Vicente Hernández ◽

Felipe Galleguillos ◽

Nicole Sagredo ◽

Ángela Machuca

Keyword(s):

Filamentous Fungi ◽

Design Methodology ◽

Light Exposure ◽

Full Scale ◽

Color Fastness ◽

Dry Cleaning ◽

Content Type ◽

Natural Pigments ◽

Wool Fabrics ◽

Dyeing Method

PurposeThe study aims to test the color fastness of wool and linen fabrics dyed by simple immersion in ethanol dissolutions of fungal dyes.Design/methodology/approachEthanol dissolutions of Talaromyces australis and Penicillium murcianum dyes were prepared to a concentration of 0.3% and used to dye wool and linen samples by immersion. Color fastness to washing, dry cleaning, wet and dry rubbing, perspiration and light, were tested according to AATCC standards.FindingsColor fastness reached acceptable results at dry cleaning and wet and dry rubbing by crocking but did not performed well at laundering, perspiration and light exposure. Results indicate that ethanol dissolutions of tested dyes had better affinity for wool fabrics than linen, but the dyeing method requires further improvements to be considered attractive for full scale applications.Originality/valueIn this work sustainability of fabrics dyeing is improved by using natural pigments produced by filamentous fungi and a method to dye that requires no increment of temperature and mordants.

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Dyeing Properties of Gardenia Yellow, Lac Dye and Sodium Copper Chlorophyll for Wool

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1048.85 ◽

2014 ◽

Vol 1048 ◽

pp. 85-88 ◽

Cited By ~ 1

Author(s):

Jun Zhang ◽

Yan Juan Chen ◽

Meng Xue Xu

Keyword(s):

Acidic Medium ◽

Neutral Condition ◽

Natural Dyes ◽

Color Fastness ◽

Dyeing Properties ◽

Wool Fabrics ◽

Lac Dye ◽

Dyeing Parameters ◽

Color Depth

The dyeing of wool fabrics with three different natural dyes, gardenia yellow, lac dye and sodium copper chlorophyll was studied, and the important dyeing parameters such as pH of dyebath, dyeing temperature, and dyeing time were discussed. The good results were achieved when the dyeing was conducted at 90 °C for 60 min in a weakly acidic medium for gardenia yellow and lac dye, and under a neutral condition for sodium copper chlorophyll. In addition, the dyed and mordanted wool fabrics had higher color depth values, darker shades, and better color fastness than the dyed and unmordanted samples.

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Dyeing of Wool Fabric with Red Pigment Secreted by Ginkgo Biloba Endogenous

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.671.40 ◽

2015 ◽

Vol 671 ◽

pp. 40-45

Author(s):

Rong Huang Cheng ◽

Chen Kang Shen ◽

Hong Yan Li ◽

Zhi Cheng Yu

Keyword(s):

Ginkgo Biloba ◽

Antimicrobial Properties ◽

Sodium Sulphate ◽

Wool Fabric ◽

Color Fastness ◽

Red Pigment ◽

Optimal Conditions ◽

Dyeing Process

In this paper, the wool fabric was dyed with Red Pigment secreted by Ginkgo Biloba Endogenous by direct dyeing and the dyeing process was optimized. The fabric was evaluated from k/s and fastness in this experiment, and a better dyeing process is: temperature 80°C,pH 3, dosage of sodium sulphate is 5g/L, dyeing time is 60 minutes. The wool fabric dyed in the optimal conditions, had 4 to 5 levels soaping fatness, 5 levels rubbing fastness and 2 to 3 sun-shined color fastness. In the experiment, it is Confirmed the red pigment with antimicrobial properties.

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Investigation of dyeing methods on wool fabrics with hibiscus and its antibacterial efficiency

Industria Textila ◽

10.35530/it.068.02.1288 ◽

2017 ◽

Vol 68 (02) ◽

pp. 103-107 ◽

Cited By ~ 3

Author(s):

Büyükakıncı B.Yeşim

Keyword(s):

Antibacterial Activity ◽

Antibacterial Activities ◽

Color Fastness ◽

Fastness Properties ◽

Antibacterial Efficiency ◽

High Antibacterial Activity ◽

Tin Chloride ◽

Wool Fabrics ◽

Woolen Fabric ◽

Application Methods

The present paper deals with the application of natural dyes extracted from powdered Hibiscus flowers and leaves on 100 % woolen fabric. For this puposes, two mordants (copper sulphate, CuSO4.5H2O and tin (II) chloride, SnCl2) and the application methods (pre-, meta-, post- mordanting) were used and their effects on dyeability, color characteristics, fastness properties and antibacterial activities of dyed-mordanting woolen fabric were investigated and evaluated. The color fastness with respect to washing and rubbing was quite satisfactory for both mordant reagents. Unless cupper sulphate was not shown antibacterial efficiency, high antibacterial activity was obtained using tin chloride as a ordant reagent.

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