Functional Aspects, Ecotesting, and Environmental Impact of Natural Dyes

2015 ◽  
pp. 348-365
2018 ◽  
Vol 73 ◽  
pp. 04014
Author(s):  
Dyah Ika Rinawati ◽  
Diana Puspita Sari ◽  
Darminto Pujotomo ◽  
Puji Handayani Kasih

Using synthetic dyes causes bad impact on the environment. But using natural dyes has several problems such as fade, slight colour variations and takes longer time. In order to solve that problems, it is needed to develop instant natural dyes. This study aims to design instant natural dyes to fulfill needs of batik artisans that having minimal environmental impact as well as having minimal cost. This study use green quality function deployment II method. This study involve voice of customer identification, calculation gap, the determination of characteristic of technical, making the house of quality (HOQ), life cycle assessment (formulation of green house & green the matrix), life cycle cost (formulation of cost house, the preparation of cost the matrix) and concept comparison house (CCH). Based on voice of customer, natural dyes that will be developed is red colour. Red natural dyes extracted from root of Morinda citrifolia and Ceriops candolleana. In this research, there are two alternatives of natural dyes namely powders and liquid natural dyes. The result of this study is powder natural dyes selected because of lower environmental impact and user operational cost.


2020 ◽  
Vol 5 (1) ◽  
pp. 100
Author(s):  
Sri Mulyani ◽  
Kris Siska Aristia ◽  
Ardia Putri Sabrina ◽  
Afifatul Arfiah ◽  
Badrun Niam

<p class="Default">Synthetic dyes have a high environmental impact, especially on waters. The use of natural dyes for textiles provides new hope for ecological improvement. This article is to find out the yield of water extract of white frangipani (<em>Plumeria acuminate</em>) and hibiscus (<em>Hibiscus tiliaceus</em>) leaves-powder, as well as to find out whether the water extracts have potential as textile natural dyes. Natural dyes must have a good quality of fastness. For this reason, the color fastness tests for washing with a launder meter and colorfastness against rubbing with a crock meter are performed. Colorfastness is assessed by comparing color changes to washing with grayscale and color changes due to staining on fabric with staining scale. The rubbing test is carried out on the wet and dry cloth. Cotton and polyester fabrics are samples that will be colored. Fixers used to bind dyes are Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>, CaCO<sub>3</sub>, and FeSO<sub>4</sub>.H<sub>2</sub>O. The results show that the water extraction of hibiscus and white frangipani leaves powder gave a yield of 11% (w/w) and 27 % (w/w), respectively. The test of colorfastness against washing showed that both water extract of the white frangipani dan hibiscus leaves has a pretty good average quality in staining scale but less in grayscale. The test against rubbing shows that the type of fixer used affects the quality of the colorfastness, but in general, the water extract of white frangipani leaves gives better quality as a potential of natural dye than hibiscus leaves</p>


2017 ◽  
Author(s):  
Dyah Ika Rinawati ◽  
Diana Puspita Sari ◽  
Bambang Purwanggono ◽  
Andy Tri Hermawan

2019 ◽  
Vol 57 (3A) ◽  
pp. 69
Author(s):  
Bui Mai Huong ◽  
Trinh Thi Kim Hue

Lyocell is considered as a new fiber that represents a milestone in the development of environmentally sustainable textiles.  Lyocell is spun from wood pulp cellulose via a green chemical process with NMMO (N-methylmorpholine-N-oxide) solvent. Following the concept of lower the environmental impact of fashion clothing, this study aims to determine the suitable natural dyes recipes with the color extracting from tropical onion skins. Colorants were extracted by dissolving crushed dried onion skins with boiled in water at 100ºC for 20-25 minutes. The ratio of extracting and dyeing are 1:25 and 1:30 respectively. The optimal dyeing condition was found out at 80ºC, 45 minutes with 75% v/v. In addition, a variety of the most commonly used mordants including Potassium aluminum sulfate, Copper (II) sulphate and Iron (II) sulphate were used for mordanting in order to compare the differently mordanted and unmordanted dyed fabrics via color strength (K/S) and CIE L*a*b* color values. It was found that mordant type had an effect on color strength and the color coordinates of fabric dyed with onion skin, which can supply variety of color choices for the same colorants.


1978 ◽  
Vol 23 (9) ◽  
pp. 623-624
Author(s):  
MARIS MONITZ RODGON

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
M Toussirot ◽  
E Hnawia ◽  
D Cardon ◽  
W Nowik ◽  
A de la Sayette ◽  
...  

2019 ◽  
Author(s):  
M Hänsel ◽  
T Bambach ◽  
H Wachtel
Keyword(s):  

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