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

2014 ◽  
Vol 1048 ◽  
pp. 85-88 ◽  
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.

scholarly journals Reusing wasteroot of Rubia wallichiana dyeing from Monpa of Tibet in China

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rong Yang ◽  
Yu Zhang ◽  
Sailesh Ranjitkar ◽  
Mingxiang Li ◽  
Yongjie Guo ◽  
...  
Keyword(s):  
Cultural Values ◽  
Aqueous Extract ◽  
Ethyl Alcohol ◽  
Economic Benefits ◽  
Natural Dyes ◽  
Body Parts ◽  
Color Strength ◽  
Alcohol Extract ◽  
Dyeing Properties ◽  
Ecological Economic

AbstractHumans have dyed textiles and leather, colored food, and paint body parts using natural dyes throughout history. Natural dyes have suffered drastically due to recent socioeconomic changes and replacement with synthetic dye in the textile industry. Hence, it is urgent to study indigenous dye plants and dyeing craft in local communities to protect these resources' potential ecological, economic, and cultural values. In 11 Monpa villages of Mêdog County, South-east Tibet, China, we conducted field research to record the indigenous method of cloth dyeing using madder dye. An aqueous extract of the root of Rubia wallichiana is a traditional madder dye. In this study, we used traditional dye and ethyl alcohol extract of the residue of aqueous extract. Two fabrics were dyed with the extractions in the presence of one of the metallic mordants or biomordants. Pigment compounds from aqueous extraction of madder and ethyl alcohol extraction of recycled madder were evaluated using Phytochemical, UV–visible spectroscopy, and FTIR test. We carried out One-way ANOVA and Duncan's new multiple range method to analyze different dying approaches and conditions. The dyed fabrics were evaluated by indicators of color strength and fastness, including washing, rubbing, and perspiration. The findings revealed the potentiality of biomordants to improve the dyeing properties of madder. The dyeing properties of recycled madder were marginally better than traditional madder. The results revealed the feasibility of enhancing the dyeing property and reuse of the residue from madder dyeing. The improved dyeing and reuse of residue can improve local ecological, economic benefits, and cultural heritage while applying research findings for the subsequent commercialization of plant dyes.

Dyeing Properties of Natural Dyes Extracted from Turmeric and their Comparison with Reactive Dyeing

2008 ◽  
Vol 12 (4) ◽  
pp. 1-11 ◽  
Author(s):  
Saima Umbreen ◽  
Shaukat Ali ◽  
Tanveer Hussain ◽  
Rakhshanda Nawaz
Keyword(s):  
Natural Dyes ◽  
Dyeing Properties ◽  
Reactive Dyeing

Utilization of Old Coconut (Cocos nucifera) Husk Waste as Potential Source of Natural Dye and its Dyeing Properties on Cotton Cloth

2021 ◽  
Vol 882 ◽  
pp. 280-286
Author(s):  
Aris Sugih Arto Kholil ◽  
Husniyyah Ulfah Adani ◽  
Annisa’ Mufsihah ◽  
Achmad Chafidz
Keyword(s):  
Cocos Nucifera ◽  
Natural Dye ◽  
Natural Dyes ◽  
Cotton Cloth ◽  
Color Fastness ◽  
Fastness Properties ◽  
Binding Agent ◽  
Binding Agents ◽  
Colored Cotton ◽  
Brown Color

Coconut husk is considered waste and its fibers can be used as a source of natural dyes for textiles. The objective of this research is to obtain natural dyes from old coconut (Cocos nucifera) husk waste fibers through the extraction process. Brown color was produced in the liquid-liquid extraction method. The brown color natural dyes were then used to dye cotton cloth. Three different binding agents were used during the fixation process, i.e. tunjung, naphtol salt, and alum. The coloring results of the natural dye on the cotton cloth were as follow: with alum binding agent the resulting color was light brown (cream), whereas tunjung binding agent produced a greenish brown color, and using napthol salt binding agent produced yellow color. The colored cotton cloths were tested for their color fastness properties against rubbing, soap washing, and sunlight exposure. The measurement scale used was grey scales, which was used to evaluate the color change (color fading) and color staining (color transfer) during color fastness testing. In general, based on the results, the colored cotton cloth using alum as binding agent showed better color fastness properties against rubbing, soap washing, and sunlight exposure compared to the ones using tunjung and naphtol salt binding agents.

scholarly journals The Application of Mahagony Bark (Swietenia Mahagony L.) for Natural Dyeing

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Immas Lutfi ◽  
Rois Fatoni ◽  
Siti Fatimah
Keyword(s):  
Calcium Oxide ◽  
Negative Impact ◽  
Ferrous Sulphate ◽  
Optimal Concentration ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Natural Dyeing ◽  
Long Time

Recently many batik industries owner have switched to using natural dyes because synthetic dyes in the long time have a negative impact on the environment. Natural dyes that are widely used are mahogany (Swietenia Mahagony L.) bark dyes. In the process of coloring batik fabric, there is stage of fixation. Fixation is the stage of binding the color with the fixator. There are three types of fixators used, namely alum (Al2(SO4)3.12H2O), calcium oxide (CaO) and ferrous sulphate (FeSO4) with certain concentrations. The owner of batik industries don't know yet the concentration of a strong and optimal fixator for binding natural dyes in batik fabric. The purpose of this study is to determine the type of strong fixator and optimal concentration of fixator for binding natural mahogany dyes on batik fabric. The owner of batik industries usually use an estimated concentration of 30 g / L to 100 g / L. In this study, the variables are 30 g / L, 60 g / L and 90 g / L in each type of fixator to test the color aging value. and color fastness to rub wet and dry. Judging from the value of R% (color aging) and color fastness test against wet and dry rubbing, it can be concluded that alum and calcium oxide are strong fixators that used with mahogany dyes and the most optimal concentration of alum and calcium oxide is 60 g / L. 

Dyeing Ramie Fabrics With Curcumin in NaOH/Urea Solution at Low Temperature

2018 ◽  
Vol 37 (1) ◽  
pp. 66-79 ◽  
Author(s):  
Sijun Li ◽  
Ming Lu ◽  
Ruimin Hu ◽  
Tian Tang ◽  
Keru Hou ◽  
...  
Keyword(s):  
Low Temperature ◽  
Breaking Strength ◽  
Urea Solution ◽  
Ramie Fiber ◽  
X Ray Diffraction ◽  
Dyeing Properties ◽  
X Ray ◽  
Washing Fastness ◽  
Urea Aqueous Solution ◽  
Color Depth

To improve dyeing properties of ramie fabrics, sodium hydroxide/urea (NaOH/urea) was used as curcumin solvent and ramie-fiber swelling solvent. Ramie fabrics were dyed with curcumin in NaOH/urea aqueous solution at low temperature without using any mordants. The color depth (K/S) value, washing fastness, ultraviolet–visible spectrophotometry were measured to investigate dyeing properties of the ramie with curcumin in NaOH/urea solution at low temperature. Meanwhile, X-ray diffraction and breaking strength were used to determine the structure of the ramie in NaOH/urea solution. Curcumin could be dissolved completely in NaOH/urea solution, and crystallinity of ramie fiber was decreased a little. The K/S value of dyed ramie fabrics in NaOH/urea solution increased around 4-fold compared to dyed ramie fabrics in water. The dyed ramie fabrics in NaOH/urea solution displayed good washing fastness. In addition, dyed ramie fabrics in NaOH/urea solution revealed anti-ultraviolet properties.

Study on Dyeing Properties of Black Rice Pigment on Tussah Silk

2013 ◽  
Vol 821-822 ◽  
pp. 626-629 ◽  
Author(s):  
Yan Mei Jia
Keyword(s):  
Ph Value ◽  
Visible Spectrum ◽  
Black Rice ◽  
Natural Pigment ◽  
Dyeing Properties ◽  
Dyeing Process ◽  
The Stability ◽  
Dyed Fabric ◽  
Mordant Dyeing ◽  
Color Depth

To enrich the color of natural dyes, a natural pigment was extracted from black rice and used to dye tussah silk. The stability of the extract to mordant ions was investigated by Visible Spectrum and the effect of the dyeing pH, dyeing temperature, dyeing time as well as mordant process on dyeing properties (K/S value) were studied, the optimum dyeing process was obtained. The results show that the optimized direct dyeing process is pH value 4. 5, dyeing at 90 °C for 60 min, the color of dyed fabric various with metal ions. In comparison, the fabric post-mordant dyeing with ferrous sulfate exhibits the higher color depth and better color fastness.

Investigating the Potential Use of Cassava Leaf Extract as a Natural Coloring Substance for Fabrics

2020 ◽  
Vol 991 ◽  
pp. 123-128
Author(s):  
Suharno Rusdi ◽  
M. Yusuf Zakaria ◽  
Rifki N.F. Aditya ◽  
Achmad Chafidz
Keyword(s):  
Leaf Extract ◽  
Extraction Process ◽  
Market Potential ◽  
Natural Dyes ◽  
Cotton Cloth ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Cassava Leaves ◽  
Textile Industries ◽  
Potential Use

In this modern era, most of the textile industries used synthetic dyes for coloring their fabrics. The reason why most of textile companies use synthetic dyes is that synthetic dyes are easier to obtain, the availability of colors is guaranteed, vast variety of colors, good color fastness. Nevertheless, the use of synthetic dyes in the textile industries has caused environmental problems if the waste not treated properly. Additionally, synthetic dyes commonly contain chemicals which are not good for human health. They can cause cancer, attack the nerves of the brain, etc. Therefore, most of people now focus on using natural dyes as alternative to subtitute synthetic dyes. Nowdays, in Indonesia, naturally-dyed textile products, such as Batik tulis (using natural dyes) has a high market potential as a superior commodity of Indonesian products to enter the international market. Therefore, to develop the use of natural dyes in the textile industries, it is necessary to explore the sources of natural dyes from various potential natural resources in Indonesia. Most of these natural dyes are coming from the plants. Cassava leaf is widely known and used for cooking by the people of Indonesia. Based on the literature, cassava leaf contains natural pigments such as chlorophyll a, chlorophyll b, xanthophyll, carotene, and anthocyanin Based on this, we took the initiative to conduct research to investigate the potential use of cassava leaves extract as natural coloring substance for coloring fabrics. In this research, Cassava leaf extract has been obtained via solid-liquid extraction process using two different solvents, ethanol (96%) and n-hexane. From this study, it was found that the most optimum extract resulted from the extraction process was about 1.67% with ratio of cassava leaves and ethanol solvent of 1:10. This extract was then used for coloring the cotton cloth. After colored, the cloth was then tested for its color fastness by two methods, namely rub method and washing with soap. From the test results, it was found that the fabric dyed with cassava leaf extract was not much able to withstand against rubbing and washing with soap. Based on this result, further research is needed, such as using other agents during the mordanting and fixation processes

Dyeing Properties of Reactive Dyes on Hemp Fabrics

2011 ◽  
Vol 332-334 ◽  
pp. 126-129
Author(s):  
Si Tan ◽  
Jian Ming Wang
Keyword(s):  
Reactive Dyes ◽  
Color Fastness ◽  
Dyeing Properties

This research focuses on the promotion of China-hemp in the dye bath, the effect of salt, alkali, time and temperature on the dyeing properties. The optimum processes of thermostability of China-hemp dyeing with reactive dyes are determined by comparing the effect of different concentration of the agents on the K∕S value and color fastness.

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