Sorghum Red Pigment Dyeing Properties of Tencel Loose Fibre

2011 ◽  
Vol 331 ◽  
pp. 275-278
Author(s):  
Zhi Peng He ◽  
Zan Min Wu ◽  
Xiao Li Zhou
Keyword(s):  
Salt Concentration ◽  
Natural Dyes ◽  
Red Pigment ◽  
Dye Uptake ◽  
Dyeing Properties ◽  
Fixation Ratio

Dyeing of tencel loose fibre with sorghum red pigment as natural dyes has been studied. The values of dye uptake and fixation ratio have been calculated and disscussed. The effect of dyeing time, dyeing temperature, dye concentration and salt concentration were studied. Dye uptake and fixation ratio were high, and the fastness of dyed fibre were good.

Study on Dyeing Properties of Chrysophanol on Poly(trimethylene terephthalate)Fiber

2011 ◽  
Vol 396-398 ◽  
pp. 1201-1205 ◽  
Author(s):  
Jia Wei Wang ◽  
Cai Yun Shi ◽  
Yun Zhang ◽  
Xiang Rong Wang
Keyword(s):  
Partition Coefficient ◽  
Theoretical Basis ◽  
Natural Dyes ◽  
Synthetic Fiber ◽  
Dye Uptake ◽  
Partition Relation ◽  
Final Temperature ◽  
Dyeing Properties ◽  
Trimethylene Terephthalate

In order to provide the theoretical basis for synthetic fiber dyeing with natural dyes, the dyeing properties of chrysophanol on Poly(trimethylene terephthalate)(PTT) fiber were investigated. The appropriate dyeing condition was 0.5g•dm-3 Paregal O in the dyebath, pH=5 and the final temperature at 100°C~110°C. The dye uptake of chrysophanol on PTT fiber was relatively small, and the building-up property of chrysophanol on PTT fiber was poor. The adsorption of chrysophanol on PTT fiber accorded with Nerst Partition Relation. The partition coefficient decreased with the temperature rising while the dyeing affinity (-△μ0) increased with the temperature rising.

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

The Adsorption Character of Kapok Fiber and Reactive Dyeing Technology on Modified Kapok Fiber

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Ying Ding ◽  
Zaisheng Cai ◽  
Liming Wang ◽  
Yong Shen ◽  
Qunyan Gao
Keyword(s):  
Reactive Dyes ◽  
Reactive Dye ◽  
Dye Uptake ◽  
Direct Dyes ◽  
Kapok Fiber ◽  
Reactive Dyeing ◽  
Wash Fastness ◽  
Fixation Ratio

The adsorption character of kapok fiber with direct dyes and the dyeing technology of cationic modified kapok fiber with reactive dyes were studied in this article. The results indicate that the optimal dyeing technique parameters for the cationic modified kapok fiber with the reactive dye Cibacron FN-R include 0.5~1% (o.w.f) of dyes, 15~20g·L-1 of NaCl, and 2g·L-1 of JFC with bath ratio of 1:50 at a dyeing temperature of 40°C for 30min. The dyed kapok fiber was fixed with 15~20g·L-1 of Na2CO3 for 60min. As a result, the dye-uptake, fixation ratio, wash fastness, friction fastness, and K/S of cationic modified kapok fabric were enhanced by above technique.

Dyeing Properties of Lac Dyes for Wool, Silk and Nylon

2011 ◽  
Vol 233-235 ◽  
pp. 817-820
Author(s):  
Bo Wei ◽  
Qiu Yuan Chen ◽  
Ren Cheng Tang ◽  
Guo Qiang Chen
Keyword(s):  
Electrostatic Interaction ◽  
Uptake Rate ◽  
Color Fastness ◽  
Dye Uptake ◽  
Amino Groups ◽  
Dyeing Properties ◽  
Initial Uptake Rate ◽  
Dyed Fabrics ◽  
Initial Uptake

The dyeing properties of lac dyes for wool, silk and nylon fibers were investigated, and compared in terms of dependence of dye uptake on pH, dyeing rates, and building-up performance as well as color hue and color fastness of dyed fabrics. For all the three fibers, the uptake of lac dyes was greatly influenced by pH, indicating that the electrostatic interaction between lac dyes and fibers predominantly contributes to lac adsorption. The maximum adsorption wavelength of dyed fabrics shifted to a higher value with increasing application pH, indicating the existence of bathochromic effect. Lac dyes showed the quickest initial uptake rate for silk, the slowest rate for wool. The capacity of lac uptake by three fibers was in the following order: wool > silk > nylon, this being in accord with the quantity of amino groups in these fibers. Dyed wool exhibited the best color fastness.

Dyeing properties of natural dyes extracted from eucalyptus

2007 ◽  
Vol 98 (6) ◽  
pp. 559-562 ◽  
Author(s):  
S. Ali ◽  
N. Nisar ◽  
T. Hussain
Keyword(s):  
Natural Dyes ◽  
Dyeing Properties

Antimicrobial Activity of Wool Fabric Dyed with Natural Dyes

2011 ◽  
Vol 15 (3) ◽  
pp. 1-10 ◽  
Author(s):  
N.F. Ali ◽  
R.S.R.EL. Mohamedy ◽  
E.M. El- Khatib
Keyword(s):  
Antimicrobial Activity ◽  
Inhibition Zone ◽  
Natural Dyes ◽  
Wool Fabric ◽  
Fastness Properties ◽  
Dye Uptake ◽  
Cassia Fistula ◽  
Color Strength ◽  
Test Organisms ◽  
Dyed Fabric

Natural dyes extracted from Cassia fistula and onion peels are used to dye wool that is pretreated with chitosan by using tannic acid as a mordant. The effect of the mordant concentration on the color strength (K/S) is discussed. The results obtained indicated that K/S increases after treatment with chitosan. It is also noticed that K/S increases with an increasing concentration of chitosan. K/S also increases with an increase of mordant concentration until 4% and then decreases. The effect of the dye bath pH, dyeing temperature and dyeing time are also studied. The K/S and dye uptake exhibit high values. Good fastness properties of the dyed fabric are achieved. The antimicrobial activity of chitosan-treated wool fabric is tested in accordance to diffusion agents. Test organisms, such as Escherichia coli, Bacillus subitilus Pseudomons aeruginosa and Staphylococcus aureus are used and the results indicate that the samples treated with a lower concentration of chitosan exhibit a smaller inhibition zone.

scholarly journals Effect of Ozone Treatment on the Dyeing Properties of Mulberry and Tassar Silk Fabrics

2012 ◽  
Vol 7 (3) ◽  
pp. 155892501200700
Author(s):  
Sargunamani Devaraju ◽  
N. Selvakumar
Keyword(s):  
Treatment Time ◽  
Ozone Treatment ◽  
Dye Uptake ◽  
Dyeing Properties ◽  
Silk Fabrics

Ozone treatment has been carried out on silk fabrics and changes in the properties of the fabrics were reported recently. Further extending the work, in the present study, the dyeing studies of ozone treated mulberry and tassar silk fabrics were carried out using CI Acid Red 88. This type of study has not been carried out before. The results are quantified and expressed in terms of the dye uptake (DU), Equilibrium dye uptake (EDU) and half dyeing time (t1/2). It has been found that the ozone treatment reduced the DU of silk fabrics irrespective of whether they were in a raw or degummed state. The DU was found to be the highest at pH 12. At other pH levels, it was lower and the DU increased as the pH increased from 4 to 7. The lowest DU of ozone treated fabrics was found to be 50% wet pickup (WP) compared to 10% and 100% WP. The higher the treatment time (TT), the lower the DU. the EDU of the treated mulberry and tassar silk materials were lower than the untreated materials.

Effects of Alkali Proteases on Dyeing Properties of Various Proteinous Materials with Natural Dyes

2009 ◽  
Vol 79 (6) ◽  
pp. 517-525 ◽  
Author(s):  
E. Perrin Akçakoca Kumbasar ◽  
Riza Atav ◽  
M. Ibrahim Bahtiyari
Keyword(s):  
Natural Dyes ◽  
Dyeing Properties
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