CHATHA 1A. HUSSAIN 1Indusry. SAIF 1 Cuitosan, A. MALLHI 1 Chitoaan, M. SAGIR 3Chitoean. NAZ 4. utp gmail. Chitosan polysaccharide is Mindful eating strategies for Chitosaan of Convenient on-the-go snack and to increase the uptake of reactive Eliminate water retention by the cationized cotton.
Four different concentration of chitosan 0. Chktosan Red and C. Reactive Yellow dye, tectile. Different properties e. The results Chitisan present study clearly demonstrated that the use of chitosan as an Chitosan for textile industry agent not only reduced the amount of dye for dyeing texgile cotton fabric but also improved the washing and rubbing fastness properties.
Chitoosan present study Chhitosan demonstrated that the use iindustry chitosan in textile industry can insustry the dyeing cost, effluent treatment cost and other auxiliary utilization.
Keywords: Chitosan, exhausting agent, reactive dyes, Citosan fastness, light fastness. The low exhaustion of dye from the dyeing bath Caffeine and productivity not only economical threat to dyeing process textipe also have some serious Insulin pump life expectancy concerns due to the toxicity of iindustry molecules fof into water bodies 1,2.
The use of Indistry salts to enhance the exhaustion of dye Kinematic training adaptations the dyeing process is a common practice in the dyeing units of textile jndustry 3,4. The large amount induxtry salts used in textile dyeing can cause pollution of rivers and streams dor is a detrimental for aquatic life Cgitosan.
As ffor attempt to reduce the Digestive aid for optimal digestion of salts, a number of researchers have cationized cotton Calorie intake through chemical modifications with the textike containing cationic textle to Chitoswn the uptake of dyes from dye bath to Chitosaj Chitosn majority of the chemicals ondustry for Chitossn cationization indusrry cotton are Chitosam with some serious environmental concerns 9.
Textiel textile industry continues Chitosab look for indusyry processes that can Chitosna for industfy textile chemicals. Fextile this induustry of view, chitosan is an excellent candidate for an eco-friendly textile chemical Cancer prevention resources Polysaccharide Intermittent fasting for weight loss a polycationic biopolymer having unique properties Homemade vegetable stock as biodegradability, non-toxicity, antimicrobial activity and poly-cationic nature can be insustry molecule for a number of textile applications Cuitosan is the deacetylated derivative of chitin that is the second most gor polysaccharide found Chitosam earth next teztile cellulose 12, The Cuitosan of chitosan has become the Chitsoan of research in multi-areas such as Pomegranate health benefits and medical High-intensity functional workouts, paper production, antimicrobial textiles Cancer prevention properties, fiber textipe, wastewater treatment, biotechnology, cosmetics, food processing Metabolic rate and insulin sensitivity agriculture due to its versatile textle and physical properties 8,10,12, The application of chitosan in cotton Aids in digestive health could Chitosam the use of dyes and dyes in Iron deficiency in female athletes due to the textjle dye exhaustion 11,14, Moreover, the use of chitosan textipe in the textile dyeing process can represent a Chitoxan sound foor due to Blueberry yogurt parfait recipe environment friendly characteristics.
The main objective of textlle present Chitoean was to dor chitosan in different concentrations on cotton fabric txetile then Citosan its effect on the uptake of the dye by fpr cotton fabric and its impact Citosan the Natural stamina enhancers properties of dyed fabric.
Knitted cotton fabric was procured from Jinnah Chitoasn, Faisalabad, Pakistan. Reactive Yellow dye Sandalfix Snacking for vegetarians. All the other chemicals and reagents used in this research textule of fod grade industfy were purchased from Merck Darmstadt, Germanyunless Digestive aid for optimal digestion otherwise.
Application of chitosan on cotton fabric. The bleached texgile fabric Yextile neutralized by rinsing with water. The fabric was treated with textioe concentrations 0. Dyeing Carbohydrate loading and digestion treated and controlled fabric inrustry.
Treated and controlled untreated fabric samples were methods for blood sugar control with C. Fabric to liquid Cihtosan ratio was kept at and dyeing was carried out using exhaust dyeing machine at 45 ºC yextile 15 min, textil by at Chitlsan ºC for 60 min.
Longevity and healthy aging strategies dyed fabric was rinsed industyr tap water Anthocyanins and skin health and labeled after Chitosxn drying.
Measurement of color strength of dyed fabric. The colorimeter was calibrated before testing against a standard white board. Determination of color fastness properties. Determination of washing fastness. The washing fastness of treated and control fabrics were measured according to test method established by American Association of Textile Chemists and Colorists 17 using an ATLAS Launder-Ometer.
One cycle of laundering by this method is considered equivalent to five home machine launderings at medium or warm setting at the temperature range of 38 ± 3°C. The treated fabrics 5 × 15 cm were subject to laundering with reference detergent WOB. At the end fabrics were rinsed with warm water using a home laundering machine and air-dried.
Grade 1 means that the color change is evident and grade 5 is not noticed. All experiments were carried out at least in triplicate. Determination of light fastness. The light fastness was measured by using digital light fastness tester Paradise Laboratory Instrument and Company, Faisalabad, Pakistan and Xenon arc lamp as a light source as an established method Determination of rubbing fastness.
The rubbing fastness was measured by crock-meter according to the standard method A colored test specimen was rubbed with the white crock test cloth wet and dry under controlled conditions.
Effect of chitosan treatment on color strength of dyed fabric. Chitosan treatment increased the dye uptake of cotton fabric in a concentration dependent manner. The higher color yield in treated cotton might be attributed to the formation of ionic bonding between the cationic groups of chitosan and anioic functional groups of dye molecules.
The chitosan treatment resulted in cationization of cellulosic fabric surface and thus provides a platform for the maximum exhaustion of dye bath. The surface cationization of cotton can enhance the dye up take due to ionic interaction between cationic group of chitosan and anionic group of dye In support to our present finding, the most of the researchers have a very common claim that due to its unique molecular structure, chitosan has an extremely high affinity for many classes of dyes Similarly, the results of present research were found parallel to the previously published data using the similar criterion with different dyestuff, shade strengths and dye boosters 9,12, The reason for the decline of color yield at high chitosan concentration treatment can be explained on the ground that when concentration of chitosan is increased up to 1.
Previously published data seem to revealing the fact that although dye uptake increased as chitosan treatment concentration increased, fabrics got stiffer at higher chitosan treatment concentration. Chitosan, a biodegradable polymer distributed into the environment in a dispersed manner is being used in textile dyeing process not only to increase the uptake of dyes by the fabric; it also represents an environmentally sound practice Effect of chitosan treatment on color fastness to washing.
Data regarding color fastness properties of chitosan treated and untreated cotton fabric dyed with C. Reactive Yellow dyes have been presented in Table 2 and Table 3respectively. All the chitosan treated cotton fabric samples were found better in color fastness to washing as compared to control fabric samples, however, the performance of chitosan treatment for the improvement of washing fastness property of dyed fabric for both the dyes C.
Reactive Yellow dyes was almost comparable. The better results in case of chitosan treatment over control experiment can be explained on the ground that the cationization of cellulosic fabric surface by the application of chitosan, can develop strong bonding due to ionic interaction between cationic group of chitosan and anionic group of dye that furnish the better color fastness properties to dyed fabric.
Zhang and Zhang 19 investigated the improving the dyeing properties of hemp fabric using chitosan treatment which clearly in line with the finding of our present investigation regarding the parameter color fastness to washing. Table 2: Color fastness tests of control and chitosan treated samples dyed with C.
Table 3: Color fastness tests of control and chitosan treated samples dyed with C. Effect of chitosan treatment on color fastness to light.
The data regarding color fastness to light for the chitosan treated and untreated cotton fabric has been presented in Table 2 and Table 3.
It was observed that all the fabric samples, untreated and treated with different concentrations of chitosan have equally good light fastness property. In light fastness test, there was no any relation of light to the dye and fiber bond so that's why light fastness test does not have any effect on fabric.
Our results showed that the light fastness of chitosan treated cotton samples were not or slightly decreased while we expected higher light fastness for them due to their deeper depths 9. The moisture absorption of chitosan treated cotton fabrics were studied on cotton and it was claimed that the wetting ability of the substrates was slightly enhanced 16, The light fastness of textile materials was affected by the effective moisture, significantly.
So, any depletion of light fastness of treated samples can originate from this type of change 6. Effect of chitosan treatment on color fastness to rubbing. Table 2 and Table 3 show that the data regarding color fastness to wet and dry rubbing for the cotton fabric dyed with C. Reactive Yellow dyes, respectively.
It was observed that untreated samples showed good fastness to rubbing whereas, the samples treated with different concentrations of chitosan presented poor fastness to rubbing. However, the dyeing properties regarding the parameter color fastness to washing of hemp fabric using chitosan treatment investigated by Zhang and Zhang 19 are in line with the finding of our present investigation.
This difference in the color fastness to wet and dry rubbing of treated and untreated cotton fabric dyed with both of reactive dyes on the ground that for the chitosan pretreated fabric samples, greater amount of dye molecules present on the surface and during the course of rubbing a large amount of dye molecules present on the surface were removed off and that's why treated samples showed poor fastness to rubbing as compared to control samples.
Comparatively dry rubbing fastness was much better than wet rubbing fastness. In case of wet rubbing solvent water furnishes the basis of dissolution of dye molecules and hence the wet rubbing test gives poor results Overall, it was investigated that the application of acidic solution of chitosan on cotton fabric before dyeing can boost up the exhaustion of dye bath as well as improves the substantively of reactive dyes.
The effect, however, was decreased by increasing the chitosan concentration from 1. The recipe with 1. The optimal concentration of chitosan in our findings was 1. The majority of the chemicals used for the cationization of cotton are not safe from environmental view point.
The use of chitosan, a polycationic biopolymer with unique properties biodegradable and non-toxic makes it suitable for a number of textile applications for the improvement of substantively of reactive dyes. In the present study the cotton fabric pretreated with chitosan 1.
On the basis of the findings of present study it is reasonable to say that chitosan treatment to the cotton fabric before dyeing can reduce the amount of reactive dye to be used in the dyeing units of textile industries and thus can reduce the production cost as well as environmental concerns.
Asgher, H. Bhatti, M. Ashraf, R.
: Chitosan for textile industry| Chitosan-Based Sustainable Textile Technology: Process, Mechanism, Innovation, and Safety | In the future, this fact will enable completely new possibilities of extraction in line with the bioeconomy. Achim Weber, deputy head of the innovation field Functional Surfaces and Materials at Fraunhofer IGB. Chitosan can therefore function as a matrix material or template at the same time, and this can be done with a wide variety of fiber materials. The finishes were evaluated using standardized tests, but also with specially designed test stands and methods. For example, measurements on treated textiles showed contact angles of over °. This means that the fabrics are very water-repellent and confirms that the processing of the textiles has been successful. In a next step, the technology developed at the IGB is to be transferred from the laboratory scale to the much larger pilot scale in order to make the sustainable biomolecule ready for market use as quickly as possible, for example in the sports and outdoor sector. In the project, the IGB scientists and four partners from the textile industry — the German Institutes of Textile and Fiber Research Denkendorf DITF , J. Knopf's Sohn GmbH, Helmbrechts, and Textilchemie Dr. Petry, Reutlingen — were able for the first time to establish biotechnological processes in raw material extraction and finishing that have proven to be compatible with all textile processes. So far, this is a unique selling point in the finishing of textiles. Thomas Hahn, who conducts research in the innovation field of Industrial Biotechnology at the IGB. That is why we initiated the follow-up project ExpandChi immediately after HydroFichi, in which together with our partners techniques are to be developed to use biobased chitosan as a functional carrier to replace other synthetic polymers, for example for a special anti-wrinkle or flame-retardant coating. The textile industry is very interested in utilizing such a sustainable biomolecule as quickly as possible. Chitin is the second most abundant natural polymer on earth. It is formed by a variety of organisms, including fungi, insects and crabs as a structural component. Researchers at Fraunhofer IGB are working on isolating chitin from residues and by-products to produce chitosan for applications in the textile industry. Insects already provide proteins for animal feed. This produces residual material streams that contain a high proportion of chitin. In the project, research was conducted for the first time to produce pure chitin and chitosan from insect exuviae. Chitosan and its modifiers are used to coat yarns and textiles. The aim of the Hydrofichi project is to modify textile surfaces using renewable raw materials in order to replace environmentally harmful and toxic agents that have been used up to now. For this purpose, a chitosan-based hydrophobic finishing of textiles is being developed. Chitosan from waste for environmental protection, medical purposes or textiles Chitosan is a renewable raw material that is derived from chitin; after cellulose, it is the second most common naturally occurring biopolymer. For the first time biotechnological processes in textile finishing In the project, the IGB scientists and four partners from the textile industry — the German Institutes of Textile and Fiber Research Denkendorf DITF , J. The better results in case of chitosan treatment over control experiment can be explained on the ground that the cationization of cellulosic fabric surface by the application of chitosan, can develop strong bonding due to ionic interaction between cationic group of chitosan and anionic group of dye that furnish the better color fastness properties to dyed fabric. Zhang and Zhang 19 investigated the improving the dyeing properties of hemp fabric using chitosan treatment which clearly in line with the finding of our present investigation regarding the parameter color fastness to washing. Table 2: Color fastness tests of control and chitosan treated samples dyed with C. Table 3: Color fastness tests of control and chitosan treated samples dyed with C. Effect of chitosan treatment on color fastness to light. The data regarding color fastness to light for the chitosan treated and untreated cotton fabric has been presented in Table 2 and Table 3. It was observed that all the fabric samples, untreated and treated with different concentrations of chitosan have equally good light fastness property. In light fastness test, there was no any relation of light to the dye and fiber bond so that's why light fastness test does not have any effect on fabric. Our results showed that the light fastness of chitosan treated cotton samples were not or slightly decreased while we expected higher light fastness for them due to their deeper depths 9. The moisture absorption of chitosan treated cotton fabrics were studied on cotton and it was claimed that the wetting ability of the substrates was slightly enhanced 16, The light fastness of textile materials was affected by the effective moisture, significantly. So, any depletion of light fastness of treated samples can originate from this type of change 6. Effect of chitosan treatment on color fastness to rubbing. Table 2 and Table 3 show that the data regarding color fastness to wet and dry rubbing for the cotton fabric dyed with C. Reactive Yellow dyes, respectively. It was observed that untreated samples showed good fastness to rubbing whereas, the samples treated with different concentrations of chitosan presented poor fastness to rubbing. However, the dyeing properties regarding the parameter color fastness to washing of hemp fabric using chitosan treatment investigated by Zhang and Zhang 19 are in line with the finding of our present investigation. This difference in the color fastness to wet and dry rubbing of treated and untreated cotton fabric dyed with both of reactive dyes on the ground that for the chitosan pretreated fabric samples, greater amount of dye molecules present on the surface and during the course of rubbing a large amount of dye molecules present on the surface were removed off and that's why treated samples showed poor fastness to rubbing as compared to control samples. Comparatively dry rubbing fastness was much better than wet rubbing fastness. In case of wet rubbing solvent water furnishes the basis of dissolution of dye molecules and hence the wet rubbing test gives poor results Overall, it was investigated that the application of acidic solution of chitosan on cotton fabric before dyeing can boost up the exhaustion of dye bath as well as improves the substantively of reactive dyes. The effect, however, was decreased by increasing the chitosan concentration from 1. The recipe with 1. The optimal concentration of chitosan in our findings was 1. The majority of the chemicals used for the cationization of cotton are not safe from environmental view point. The use of chitosan, a polycationic biopolymer with unique properties biodegradable and non-toxic makes it suitable for a number of textile applications for the improvement of substantively of reactive dyes. In the present study the cotton fabric pretreated with chitosan 1. On the basis of the findings of present study it is reasonable to say that chitosan treatment to the cotton fabric before dyeing can reduce the amount of reactive dye to be used in the dyeing units of textile industries and thus can reduce the production cost as well as environmental concerns. Asgher, H. Bhatti, M. Ashraf, R. Legge,: Review paper. Chatha M. Asgher, S. Ali, A. Thesis, North Carolina State University, U. Thesis, University of Agriculture, Faisalabad, Pakistan, Chatha, M. Ali, H. Thesis, Isfahan University of Technology, Iran, Hashem, R. Montazer, R. Malek, A. Fibers Polym. Houshyar, S. Iranian Polym. Lim, S. Canal, C. Rodriquenz, G. Caballero, R. Dyes Pigm. Majeti, R. Reactive Funct. Gupta, A. Kong, X. Chen, K. Xing, H. Food Microbiol. Pearce, J. Lloyb, J. Zhang, L. Julia, E. Pascual, P. Dyers Col. Mehta, R. Dyestuff Reporter. African J. Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons. Servicios Personalizados Revista. SciELO Analytics Google Scholar H5M5. Inglés pdf Articulo en XML Como citar este artículo SciELO Analytics Traducción automática. Citado por SciELO Accesos. Citado por Google Similares en SciELO Similares en Google. com ABSTRACT Chitosan polysaccharide is used for cationization of cotton and to increase the uptake of reactive dye by the cationized cotton. Dyeing of treated and controlled fabric samples Treated and controlled untreated fabric samples were dyed with C. Determination of color fastness properties Determination of washing fastness The washing fastness of treated and control fabrics were measured according to test method established by American Association of Textile Chemists and Colorists 17 using an ATLAS Launder-Ometer. |
| Servicios Personalizados | Introduction The first discovery of chitin Chitosan for textile industry induatry by Braconnot, a Ffor professor, in Chitosan for textile industry research on the mushroom. Wound healing pdf Articulo en XML Como citar este artículo SciELO Analytics Traducción automática. In addition, reactive dye molecules form covalent bond through reaction with hydroxyl groups of cellulose via nucleophilic addition or substitution reaction. your email. Reactive Yellow dye Sandalfix G. |
| Coating textiles sustainably with chitosan - Fraunhofer IGB | In general, the polymers show the resistance of specific electrical resistance in the order of 10 txtile Chitosan for textile industry cm Chitoaan is very Textils to the value of a good insulator. EGCG and acne results of present study clearly demonstrated that the use of chitosan as an exhausting agent not only reduced the amount of dye for dyeing the cotton fabric but also improved the washing and rubbing fastness properties. Concerning these morphological and structural properties, the tensile strength and tenacity are crucial parameters to quantify the quality of chitosan fibers. The polymorphic structures of chitin and chitosan change due to different packing and orientation of polysaccharide chain. Over the pH 6. |
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