scholarly journals Improving Dyeing Properties of Cotton Fabrics to Natural Dyes with Cellulose Nanocrystals (CNCs) [Mejora de las propiedades de teñido de telas de algodón a tintes naturales con nanocristales de celulosa (CNC)]

2021 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
Rumesh Samarawickrama ◽  
U.G.S. Wijayapala ◽  
N.D. Wanasekara ◽  
C.A.N. Fernando
Keyword(s):  
Cotton Fabric ◽  
Cellulose Nanocrystals ◽  
Mangifera Indica ◽  
Tectona Grandis ◽  
Extraction Process ◽  
Cotton Fabrics ◽  
Particle Size Analysis ◽  
Natural Dyes ◽  
Size Analysis ◽  
Colour Fastness

Natural dyes can make less environmental problems associated with manufactured colouring agents and textile dyeing. But, the natural dyes fixing process was used chemicals called mordant. The most of times mordants were used metallic salts and metal salts mordants were not environmentally friendly. Therefore, remove the disadvantage associated with natural colorants and the use of nanoparticles. In this research, cotton fabric was treated with the nanoparticle of cellulose nanocrystals (CNCs) as mordant. The cellulose nanocrystals extraction process was done by using Whatman filter paper. The cellulose nanocrystals obtained will be further analyzed and characterized by using selected tools such as Particle size analysis and Fourier-transform infrared (FTIR) spectroscopy. The cotton fabrics mordanting processes were done by two types of pre-mordanting and post-mordanting methods. The three natural ingredients of Mangifera indica (Mango) leaves, Tectona grandis (Teak) leaves and Lannea coromandelica (Indian ash tree) leaves were used to extract the natural dyes using with aqueous extraction method. The extracts from dyeing processes were carried out after and before mordanting processes. The dyed sample from colour fastness to light, washing, and crocking were assessed according to standard methods. The cellulose nanocrystals gave very good colour fastness to light, wash, and rubbing when dyed with all three dye extractions. In the present study, innovative mordant of cellulose nanocrystals and natural dyeing with three natural dye extractions have been shown to give good dyeing results with cotton fabric.

scholarly journals Effect of Nanosized Colloidal Copper on Cotton Fabric

2010 ◽  
Vol 5 (3) ◽  
pp. 155892501000500 ◽  
Author(s):  
D.P. Chattopadhyay ◽  
B.H. Patel
Keyword(s):  
Particle Size ◽  
Cotton Fabric ◽  
Colloidal Solution ◽  
Chemical Reduction ◽  
Average Particle Size ◽  
Particle Size Analysis ◽  
Nano Particles ◽  
Size Analysis ◽  
Average Particle ◽  
Sem Images

This research deals with the synthesis of nanosized copper as colloidal solution and its application to cotton fabric. Copper nano colloids were prepared by chemical reduction of copper salt using sodium borohydride as reducing agent in presence of tri-sodium citrate. The size and size distribution of the particles were examined by particle size analyzer and the morphology of the synthesized particles was examined by SEM and AFM techniques. X-ray fluorescence spectroscopy detected the presence of copper in the treated fabric. The results of particle size analysis showed that the average particle size varied from 60 nm to 100 nm. The nano copper treated cotton was subjected to soil burial test for the assessment of its resistance towards microbial attack. SEM images of treated fabric indicate copper nano particles are well dispersed on the surface of the specimens. The treatments of nano copper colloidal solution on cotton not only improve its antimicrobial efficiency but also influenced the tensile strength of the fabric sample positively. The treatment was found to enhance the color depth and fastness properties of direct dyed cotton fabric samples.

scholarly journals Pharmacognostical, Phytochemical Screening, Formulation and Evaluation of Nanophytosomes of Aqueous Extracts of Trigonella foenum graecum., (Fabaceae)

2021 ◽  
Vol 70 (1) ◽  
Author(s):  
Anitha Pramanayakam ◽  
Arjunkumar Panneerselvam
Keyword(s):  
Traditional Approach ◽  
Research Work ◽  
Grape Seed ◽  
Extraction Process ◽  
Particle Size Analysis ◽  
Scientific Data ◽  
Size Analysis ◽  
Phytochemical Analysis ◽  
Biomedical Sciences ◽  
Natural Drugs

Traditional approach is the one of the emerging field of biomedical sciences. In this research work, we have evaluated the traditional approaches of the ancient healer plant T. foenum graecum belonging to fabaceae family. The leaves of T. Foenum graecum was subjected to extraction process, phytochemical analysis, preparation of phytosome and evaluation of its characterization. The scientific data shows that, leave extracts contain flavonoids, alkaloids and glycosides etc., Nanophytosome was prepared by thin layer lipid hydration method. The preparation was evaluated for DSC, FTIR, SEM, TEM and particle size analysis. Recently, Nanophytosome methodology has been fruitfully applied over several well-known natural drugs such as ginseng, green tea hawthorn, olive oil and grape seed etc. Indeed, phytosome are superior to conventional drug delivery systems in terms of the pharmacodynamic and pharmacokinetic properties. This research, we discusses the various aspects, components, methods of preparation of phytosome and their marketed formulations, therapeutic applications along with the recent research work reported on this technology.

Characterization of the redispersibility of cellulose nanocrystals by particle size analysis using dynamic light scattering

TAPPI Journal ◽  
2019 ◽  
Vol 18 (4) ◽  
pp. 223-231
Author(s):  
GUOMIN WU ◽  
QIAN LI ◽  
CAN JIN ◽  
ZHENWU KONG ◽  
SIQUN WANG
Keyword(s):  
Particle Size ◽  
Sulfuric Acid ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Acid Hydrolysis ◽  
Convenient Method ◽  
Cellulose Nanocrystals ◽  
High Speed ◽  
Particle Size Analysis ◽  
Size Analysis

Cellulose nanocrystals (CNCs), which are derived from the most abundant and inexhaustible natural polymer, cellulose, have received significant interest owing to their mechanical, optical, chemical, and rheological properties. In order to transport CNC products conveniently and efficiently, they are ideally dried and stored as powders using freeze-drying or spray-drying technologies. The redispersibility of CNC powders is quite important for their end use; hence, a convenient method is required to characterize the redispersibility of CNC powders. In this paper, the possibility of characterizing the redispersibility of CNC powders by particle size analysis using dynamic light scattering (DLS) was investigated by comparing the results from transmission electron microscopy (TEM) and DLS. The particle size obtained with DLS approximately matched that obtained with TEM. Compared with TEM, DLS is a quick and convenient method to measure the particle size distribution of CNCs in water. Two kinds of dispersing methods, sonication and high-speed shearing, and two kinds of CNCs prepared by different methods, sulfuric acid hydrolysis and the TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) oxidization method, were used to study the redispersibility of CNCs. Sonication was more efficient than the high-speed shearing method for nanoscale dispersion of CNC powders in water. CNCs prepared by sulfuric acid hydrolysis could be more easily redispersed in water than those prepared by TEMPO oxidation.

scholarly journals Kanarya Otu (Senecıo Vernalıs) Bitkisinin Doğal Boyamacılıkta Kullanılabilirliğinin Araştırılması

2020 ◽  
Vol 27 (120) ◽  
pp. 236-242
Author(s):  
Deniz Mutlu ALA ◽  
Gamze Gülşen BAKICI
Keyword(s):  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Natural Dye ◽  
Natural Dyes ◽  
Color Analysis ◽  
Textile Production ◽  
Textile Dyeing ◽  
Uv Visible ◽  
Coloring Agents ◽  
Percent Uptake

Plants, which are the biggest source of natural dyes, have been used as coloring agents since the beginning of humanity. In this study, the usability of eastern groundsel, which is thought to be an alternative for the textile dyeing industry, especially for sustainable and renewable textile production, was investigated. Dyeing processes were performed with different concentrations of dyeing baths of natural dye which is extracted from the crowns of the eastern groundsel (Senecio vernalis) plant. After dyeing, dye flotte concentrations were determined using UV-visible spectrophotometer and the percent uptake of natural dye on cotton fabric was measured Spectrophotometric color analysis of the fabrics was performed and fastnesses of the samples were evaluated. It was found that the coloration of cotton fabrics with the use of Eastern groundsel (Senecio vernalis) in suitable dyeing application conditions could be managed with almost sufficient fastnesses.

scholarly journals Dye-fixing performances of slightly crosslinked poly(dimethyldiallylammonium chlorides) on cotton fabric

2013 ◽  
Vol 32 (1) ◽  
pp. 125
Author(s):  
Yikai Yu ◽  
Yuejun Zhang
Keyword(s):  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Brilliant Blue ◽  
Cross Linking ◽  
Molar Content ◽  
Anionic Dyes ◽  
Colour Fastness ◽  
Molecular Weights ◽  
Molar Ratios ◽  
Better Than

Slightly cross-linked poly (dimethyldiallylammonium chlorides) (PDMDAACs) with different molecular weights characterized by intrinsic viscosities and structures were prepared as copolymers of triallylmethylammonium chloride (TAMAC), a cross-linking monomer, with dimethyldiallylammonium chloride (DMDAAC). They were then studied as novel, promising reactive polycationic dye-fixatives on cotton fabric. A series of slightly cross-linked PDMDAACs with controlled 1%–5% molar ratios of crosslinking units (TAMAC units) in the main chains and intrinsic viscosities of 0.04~0.86 dL/g were used to treat cotton fabrics dyed with anionic dyes such as Reactive Scarlet 3BS and Reactive Brilliant Blue KNR. Their dye-fixing performance, evaluated by dry rubbing fastness, wet rubbing fastness, colour fastness to soaping, and white fabric staining, were examined. The results showed their dye-fixing performances were affected by their intrinsic viscosities and the molar content of TAMAC units; slightly cross-linked PDMDAACs with intrinsic viscosities of 0.16-0.30 dL/g and 1% TAMAC exhibited the best dye-fixing performances and were better than all members of a group of selected widely-used commercial polycationic dye-fixatives. This was attributed to their plane-like structures and the nice balance between structure and intrinsic viscosities. Thus it was confirmed that the selected slightly cross-linked PDMDAACs can be used as novel dye-fixatives on cotton fabric.

Preparation of Jasmine Microcapsules and Aroma Finishing of Cotton Fabrics by UV-Curing

2011 ◽  
Vol 331 ◽  
pp. 306-309 ◽  
Author(s):  
Ning Xu ◽  
Dan Yu ◽  
Wei Wang
Keyword(s):  
Particle Size ◽  
Fourier Transform ◽  
In Situ Polymerization ◽  
Uv Curing ◽  
Cotton Fabrics ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Finishing Process ◽  
Curing Method

In this paper, jasmine microcapsule was synthesized by in-situ polymerization and was applied on cotton fabric with UV curing method. The jasmine microcapsule was verified by Fourier transform infrared spectroscopy. Size distribution was evaluated using particle size analysis. The finishing durability was studied by human olfactory sensations and an optimal finishing process was determined. The results suggest that UV curing will be promising for use in aroma finishing.

Dyeing silk and cotton fabrics using natural blackcurrants

2016 ◽  
Vol 87 (19) ◽  
pp. 2379-2387 ◽  
Author(s):  
Akemi Yasukawa ◽  
Ayumi Chida ◽  
Yoji Kato ◽  
Miki Kasai
Keyword(s):  
Cotton Fabric ◽  
Color Change ◽  
Antibacterial Properties ◽  
Cotton Fabrics ◽  
Natural Dyes ◽  
Color Fastness ◽  
Silk Fabric ◽  
Color System ◽  
Dyed Fabrics ◽  
Cielab Color

Silk and cotton fabrics were dyed using the extract from blackcurrants, and the properties of the dyed fabrics were investigated. The natural dyes present in the blackcurrants were identified as four types of anthocyanins, i.e. delphinidin-3-glucoside, delphinidin-3-rutinoside, cyanidin-3-glucoside, and cyanidin-3-rutinoside. The colors of the fabrics dyed with and without five types of mordants, including Mg2+, Ca2+, Al3+, Fe3+, and Cu2+, were measured and expressed according to the CIELAB color system, Δ E* value, and K/ S value. The affinity of the extracted dye for the silk fabric was higher compared with that for the cotton fabric. The crystallinity of silk was lower than that of cotton. The fabrics dyed with blackcurrants had UV shielding ability, especially at 330–400 nm, and antibacterial properties. Although color fastness to light and washing (color change) was not sufficient, treatment with Mg2+, Fe3+, and Cu2+ mordants could enhance the color fastness.

Simultaneous Effect of Ultrasonic and Chemical Treatment on the Extraction of Nanocellulose From Sugarcane Bagasse

2021 ◽  
Vol 24 (5) ◽  
pp. 146-151
Author(s):  
A'yunil Hisbiyah ◽  
Lilik Nurfadlilah
Keyword(s):  
Particle Size ◽  
Sugarcane Bagasse ◽  
Chemical Treatment ◽  
Extraction Process ◽  
Particle Size Analysis ◽  
Ultrasonic Waves ◽  
Size Analysis ◽  
Simultaneous Effect ◽  
Average Size ◽  
Intramolecular Hydrogen

The focus of this study was the simultaneous effect of ultrasonic and chemical treatment on the extraction of nanocellulose from sugarcane bagasse. Ultrasonic waves can accelerate the dispersion process of nanocellulose particles so that extraction runs faster and is environmentally friendly. The bagasse was treated by chemical treatment with ultrasonic waves, and then the nanocellulose was prepared using acid hydrolysis with ultrasonic waves. The effect of ultrasonication was investigated. The crystallinity of sugarcane bagasse, cellulose, and nanocellulose was analyzed by X-ray diffraction. Based on the diffractogram, there was an increase in the crystallinity of nanocellulose. The chemical composition of extracted cellulose and nanocellulose was analyzed by Fourier-transformed infrared spectroscopy. The results of the analysis showed that lignin and hemicellulose were removed from the bagasse during the extraction process. The analysis results also showed that the breaking of intramolecular hydrogen and glycosidic bonds occurred during the hydrolysis process. The morphology of bagasse, cellulose, and nanocellulose was analyzed by Scanning electron microscopy. While the particle size of nanocellulose was analyzed by the Particle Size Analysis instrument. The average size of nanocellulose particles was 132.67 nm.

scholarly journals Limbah Sabut Kelapa Muda (Cocos nucifera L.) sebagai Sumber Pewarna Kain

KOVALEN ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 186-193
Author(s):  
Ni Ketut Sumarni ◽  
Umma Fahriah Soleh ◽  
Nurhaeni ◽  
Prismawiryanti
Keyword(s):  
Cotton Fabric ◽  
Cocos Nucifera ◽  
Ethanol Extract ◽  
Cotton Fabrics ◽  
Natural Dyes ◽  
The Other ◽  
Cotton Cloth ◽  
Soaking Time ◽  
Extract Solution ◽  
Cocos Nucifera L

Young coconut coir (Cocos nucifera Linn.) waste has the potential to be processed into a useful product, namely as a source of natural dyes, especially in cotton fabrics. Processing is carried out through a maceration process for 72 hours using 96% ethanol as solvent. The obtained extract was applied on cotton cloth with various concentrations of the extract solution, 5, 10, 15, 20, and 25%, and various soaking times of the fabric in the extract for 60, 90, 120, 150, and 180 minutes. The extract was analyzed using Uv-Vis Spekctrofotometer it showed that the ethanol extract or dye that is absorbed into the cotton fabric with various concentrations is 3.43, 4.82, 6.61, 7.79, and 9.03%, respectively. The various soaking times show that on the other hand that the extract absorbed into the fabric was successfully obtained around 7.75, 9.64, 10.81, 11.65, and 12.04%. The results show that the concentration of the extract solution and the increasing length of soaking time can increase the percentage of extract or dye absorbed in cotton fabrics

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