Pigment Extraction of Safflower, Dyeing Properties and Antimicrobial Study of Dyed Silk

2016 ◽  
Vol 675-676 ◽  
pp. 19-22 ◽  
Author(s):  
Ploysai Ohama ◽  
Sirilak Namwong ◽  
Saowanee Kumpun
Keyword(s):  
Yellow Pigment ◽  
Color Fastness ◽  
Silk Fabric ◽  
Red Pigment ◽  
Light Fastness ◽  
Color Strength ◽  
Dyeing Process ◽  
Pigment Extraction ◽  
Red Color ◽  
Silk Dyeing

The extractions of yellow and red pigments from safflower petals were studied. The pigment extracted was further utilized as a natural dye for silk dyeing. The safflower petals were water-extracted in order to remove the yellow pigment and the extraction of red pigment from the petals was done with alkali solution. The extracted red pigment was applied to a silk fabric by dyeing process. The effects of dye concentration and pH of dye bath were studied. The colourimetric analysis of each dyed material was done in terms of the CIELab (L*, a* and b*) and K/S values. Maximum color strength for red color was obtained at pH 4. Color fastness to washing and light was evaluated. Washing fastness was 4-5 but light fastness for red dyed silk was 1. The dyed silk did not display antimicrobial activity against the bacteria Staphylococcus aureus ATCC25923T and Escherichia coli ATCC25922T.

Colorimetric Study on Silk Dyeing with the Extracted Dye from Longan Leaves Using Pre-Mordanting Technique: A Research on Effect of Mordant Concentration

2014 ◽  
Vol 1010-1012 ◽  
pp. 499-502
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Kongkiat Maha-In ◽  
Charoon Klaichoi ◽  
Wiphawan Pimklang ◽  
Panida Buathong ◽  
...  
Keyword(s):  
Copper Sulfate ◽  
Ferrous Sulfate ◽  
Stannous Chloride ◽  
Potassium Sulfate ◽  
Silk Fabric ◽  
Light Fastness ◽  
Dyeing Process ◽  
Metallic Salt ◽  
Colorimetric Study ◽  
Silk Dyeing

Natural dye extracted from longan leaves was applied to a silk fabric by exhaustion dyeing process. Aluminium potassium sulfate, ferrous sulfate, copper sulfate, and stannous chloride were used as mordants. The dyeing was conducted with and without metallic salt mordants, using pre-mordanting method. Silk fabric dyed in a solution composed of a longan from leaves without mordant showed a shade of pale yellowish-brown, while those mordanted with stannous chloride, alum, and copper sulfate produced a variety of medium to dark yellowish-brown colour shades. However, duller and darker brown shade was obtained with ferrous sulfate mordant. The colour fastness to washing, water, and rubbing were good to very good. The light fastness results showed fair level.

scholarly journals Application of Purified Lawsone as Natural Dye on Cotton and Silk Fabric

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Md. Mahabub Hasan ◽  
Khandakar Abu Nayem ◽  
Abu Yousuf Mohammad Anwarul Azim ◽  
Nayon Chandra Ghosh
Keyword(s):  
Silk Fabric ◽  
Light Fastness ◽  
Lawsonia Inermis ◽  
Color Strength ◽  
Total Extract ◽  
Textile Materials ◽  
Extraction And Purification ◽  
Dyeing Method ◽  
Exhaust Dyeing ◽  
Reddish Brown Color

The color which is obtained from the leaves of Henna, that is, Lawsonia inermis L., is used frequently in hair coloring. It is the chemical lawsone that is responsible for the reddish brown color. Its content makes it a substantive dye for dyeing the textile materials. This work concerns with the extraction and purification of natural dyestuff from a plant Lawsonia inermis L. and dyeing of cotton and silk fabric in exhaust dyeing method. The dye portion is isolated from the total extract by column chromatography and is evaluated by dyeing cotton and silk under different dyeing conditions. The color strength and fastness properties of the dye are undertaken by changing mordant and techniques of mordanting. The changes of colors have been noticed by using different types of mordant. The dye exhaustion percentage, wash, rubbing, and light fastness results reveal that the extract of henna can be used for coloration of cotton and silk fabric.

scholarly journals Cationisation of Alginate Fiber to Improve the Dyeing Properties Using Natural Dyes from Rhubarb: A New Approach

2017 ◽  
Author(s):  
Md. Kawshar Ahamed ◽  
Mohammad Raza Miah ◽  
Most. Munera khatun ◽  
Md. Hasan-Al Mamun ◽  
Cui Li
Keyword(s):  
Ferrous Sulfate ◽  
Breaking Strength ◽  
Test Methods ◽  
Color Fastness ◽  
Color Strength ◽  
New Approach ◽  
Dyeing Performance ◽  
Dyeing Process ◽  
Metallic Salt ◽  
Alginate Fiber

In this investigation dyeing of alginate fiber was carried out after cationic treatment of EPTAC (2, 3-Epoxypropyl Trimethyl Ammonium Chloride). Optimum dyeing process and parameter show good dyeing performance when alginate fiber dyed with rhubarb dye. In addition to cationic treatment is taken into account for alginate fiber to improve fastness, color strength, breaking strength. Later in dyeing for fixation ferrous sulfate, copper sulphate was considered as mordents. Moreover using pre-mordanting methods conveyed the dyeing of alginate fiber with the stave of metallic mordant and without metallic salt mordents. The evaluation of each color dyed material was done through following two terms for instance CIELAB (L*, a*, and b*) and K/S values. According to AATCC test methods color fastness to washing of the dyed fiber was determined whereas according to the ASTM D3822M standard the breaking strength of alginate fiber was estimated and tested. When dyeing was carried out on alginate fiber through considering optimum parameter like 80◦C for 90 min, M: L 1:40 and at pH 7 which showed optimum results. In addition to mostly very good wash fastness was obtained while there was no fading of the color, whereas the moderate level of color fastness to crocking was achieved. Later after dyeing the evaluations of SEM of the cationized alginate fiber and FTIR of powder from the rhubarb dye were observed. The results suggested that the surface of cationized alginate fiber was smoother than the raw alginate fiber.

Complex Dyeing of Antheraea pernyi Silk with Natural Indigo and Brazilwood

2011 ◽  
Vol 175-176 ◽  
pp. 667-671
Author(s):  
Yan Hua Lu ◽  
Zhao Dan Yang ◽  
Xu Hao
Keyword(s):  
Ph Value ◽  
Silk Fabric ◽  
Single Factor ◽  
Color Strength ◽  
B Values ◽  
Antheraea Pernyi ◽  
Washing Fastness ◽  
Molecule Reaction ◽  
Dyeing Process

To increase the color spectra, two kinds of vegetable dyes of natural indigo and brazilwood were selected for the complex dyeing of Antheraea pernyi (A. pernyi) silk fabric. Based on the structures of the two vegetable dyes, the mechanism of molecule reaction and the principle of the complex dyeing were analysized. The dyeing process was performed on the silk samples with natural indigo before brazilwood, and the optimum dyeing technique was determined by single factor. Based on K/S (color strength), a and b values (index for color style), the effects of the amount of brazilwood, pH value and temperature on the index for color style were discussed. The results showed that the dyeing shade was affected greatly by the concentration of brazilwood, and a series colors including green and grey could be obtained by the dyeing process. It was also found that the complex dyeing process provided A. pernyi silk fabric with the similar rubbing fastness and washing fastness of more than 3 or equal 3.

scholarly journals Surface Functionalization of Wool via Microbial-Transglutaminase as Bio-Mordant to Improve Dyeability with Madder in the Presence of Alum

Coatings ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 78 ◽  
Author(s):  
Reza Assefi Pour ◽  
Jinxin He
Keyword(s):  
Critical Concentration ◽  
Microbial Transglutaminase ◽  
Wool Fabric ◽  
Color Fastness ◽  
Color Strength ◽  
Dyeing Process ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Herein, the wool fabric was mordanted with alum, treated with microbial transglutaminase (m-TGase), and then dyed with madder. Different concentrations of alum and m-TGase were used to find out the optimum condition to achieve the best color after dyeing the wool fabrics with aqueous extract of madder. FT-IR spectroscopy and scanning electron microscopy (SEM) methods were applied to characterize the as-prepared samples. Contact angle measurements showed that the water uptake capability was increased in the case of the wool sample treated with alum and enzyme. Moreover, the samples were assessed for color strength (K/S) and color fastness. Our results showed that the optimal condition to get the highest color value was for the sample with 10% owf (of weight of fabric) alum and 5% owf m-TGase. Furthermore, it was found that there was a critical concentration for enzyme so that an increase in m-TGase amount would cause damage to the scales of fibers. The best condition of the dyeing process was discussed in this study, and also the proposed mechanism was presented. Indeed, treatment of wool with m-TGase led to a reduction in the amount of consumed alum, while investigations in color performances demonstrated the enhancement in color fastness, as well as color strength.

Study on Light Fastness of Natural Yellow Silk Fabric

2013 ◽  
Vol 796 ◽  
pp. 156-160
Author(s):  
Jia Yao ◽  
Qian Qian Luo ◽  
Cheng Yan Zhu
Keyword(s):  
Mechanical Property ◽  
Fracture Strength ◽  
Experimental Results ◽  
Color Fastness ◽  
Silk Fabric ◽  
Light Fastness ◽  
Plain Weave ◽  
Test Items ◽  
The One ◽  
Light Color

In this paper, the light fastness and glossiness of natural yellow silk fabric were analyzed. The test items included the mechanical property, light color fastness, perspiration color fastness, and rubbing color fastness. The relation between the glossiness and different specification of the silk fabric was discussed. Finally, the glossiness of fabric with different degumming rate was observed. The experimental results reveal that the fracture strength of fabric reduces significantly. The fabrics light fastness runs up to 1~2 degree, perspiration color fastness can reach 5 degree as well as rubbing color fastness. For the 8/5 satin fabric, the glossiness is low. Glossiness of the plain weave is less than the one of the twill fabric. After 48h lighting, the glossiness decreases while the reflectivity increases. When the lighting time increases from 48h to 96h, the glossiness increases gradually. After degumming finishing, glossiness of the fabric decreases, while the reflectivity increases. The fabric can achieve a relatively fine glossiness at degumming rate of 17.34%.

Analysis and Study of Effect of Natural Dye From Bombax malabarica on Silk Fabric

2019 ◽  
Vol 38 (1) ◽  
pp. 49-58
Author(s):  
V. Narayana Swamy
Keyword(s):  
Reduction Rate ◽  
Operating Conditions ◽  
Natural Dye ◽  
Color Fastness ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Dye Uptake ◽  
Color Strength ◽  
Cielab System ◽  
Silk Fabrics

The current study deals with the extraction of natural dye from Bombax malabarica flowers, readily available by-product. Dye was extracted under different operating conditions such as time (60–90 min), temperature (90–95 °C), and pH 9. The dyed samples were subjected to CIELAB system using Gretag Macbeth Color Eye 7000A Spectrophotometer for the evaluation of color strength and L*a*b* C and H values. To improve the dye uptake and color fastness, pre and postmordanting was carried out using alum, tannic, and tartaric acid mordants. Dyed silk fabrics were tested for its color fastness when subjected to light, washing, and rubbing. Fastness properties of dyed silk fabric samples were found considerably good. Mordanted silk fabric samples showed increase in dye uptake resulting in high color strength and better fastness properties. The dyed silk samples displayed good antimicrobial activity (reduction rate: 48%) against the bacteria Escherichia coli and (reduction rate: 55%) against Staphylococcus aureus.

Oxonitride pigments

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Gerhard Pfaff
Keyword(s):  
Solid State ◽  
Temperature Stability ◽  
Light Fastness ◽  
Color Strength ◽  
Color Range ◽  
Red Color ◽  
Yellow Orange ◽  
Application Characteristics ◽  
Spinel Structures

Abstract Oxonitride pigments belong to the inorganic yellow, orange and red colorants. They were developed to complement the yellow, orange and red color range. Oxonitride compositions that are interesting for pigment uses crystallize in perovskite, chalcolamprite and spinel structures. The most suitable compositions for pigment purposes are most probably LaTaON2 and CaTaO2N. The synthesis of oxonitride pigments is technically difficult and takes place using a solid state-gas reaction. The pigments are characterized by excellent optical and application characteristics in particular regarding brilliance and color strength, strong hiding power, good dispersibility, light fastness and temperature stability.

Application of foam dyeing technology on ultra-fine polyamide filament fabrics with acid dye

2019 ◽  
Vol 89 (23-24) ◽  
pp. 4808-4816 ◽  
Author(s):  
Qing Wang ◽  
Weitao Zhou ◽  
Shan Du ◽  
Pei Xiao ◽  
Ya'nan Zhao ◽  
...  
Keyword(s):  
Moisture Content ◽  
Process Parameters ◽  
Carboxymethyl Cellulose ◽  
Foam Stability ◽  
Color Fastness ◽  
Acid Dye ◽  
Color Strength ◽  
Dyeing Process ◽  
Exhaust Dyeing ◽  
Temperature Time

In this approach, the foam dyeing of polyamide filament fabrics with acid dye has been studied as a clean dyeing technology. The foam dyeing process parameters, including the blow ratio (BR), steaming temperature, time and humidity, were evaluated by color strength and color fastness. The results show that dodecanol and sodium carboxymethyl cellulose (CMC) mixed stabilizer could improve the foam stability and reduce the harm to human health. The optimum batch formula of dodecanol and CMC was 4:6. The K/ S value reached 3.58 at 11 BR, 100℃ steaming temperature, 20 min and 6.59% fabric moisture content. Compared with the exhaust dyeing process, foam dyeing can achieve the same level of color fastness with a higher K/ S value. These results suggest that foam dyeing is a simple and effective method for polyamide filament fabrics with acid dye, which can reduce the consumption of water, chemicals and energy, and accelerate production.

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

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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