Central Institute for Research on Cotton Technology

Mumbai, India

Central Institute for Research on Cotton Technology

Mumbai, India
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Krishnan V.,Indian Agricultural Research Institute | Vellaichamy M.,Central Institute for Research on Cotton Technology
Indian Journal of Agricultural Biochemistry | Year: 2017

Gossypol is a toxic polyphenolic compound present in cotton plant including its seed. Microbial fermentation using Pleurotus flabellatus M-1 for 72 h degraded gossypol to 76.6 % in minimal medium. A simple, precise and accurate method for gossypol determination was developed and validated. A high performance liquid chromatographic method (HPLC) consisting of an isocratic mobile phase of acetonitrile: water (80:20, v/v) with 0.1% phosphoric acid was used for the resolution of gossypol on RP-C18column (4.6 mm × 250 mm, 5µm particle), at a flow rate of 1.0 ml min-1 and UV detection at 254 nm. Under these conditions, the gossypol and its degradation products were separated in 12.5 and 8.3 min retention time, respectively. The modified method was accurate, precise, and reproducible with linearity (R2=0.999, n=5, P<0.05), limit of detection (LOD=0.2 µg ml-1) and limit of quantification (LOQ=0.5 µg ml-1). Absolute recoveries were greater than 97.6% with an average RSD of 0.75%. This method could probably be scaled up for researchers for accurate gossypol quantification as well as for identifying its degradation products. © 2017, Indian Society of Agricultural Biochemists. All rights reserved.

Mayekar V.M.,Ramnarain Ruia College | Nachane R.P.,Central Institute for Research on Cotton Technology
Indian Journal of Fibre and Textile Research | Year: 2016

An objective method of measuring pilling profile of fabric has been proposed using an inexpensive newly developed instrumentation. This measurement has been validated by direct measurement of pills using stereo microscope, as suggested by correlation analysis carried out between two sets of data. Results indicate that the objective assessment of pilled fabric could reliably be done by this machine, which can support subjective assessment done by the experts in grading of fabric. © 2016, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.

Chandra M.,Central Institute for Research on Cotton Technology | Sreenivasan S.,Central Institute for Research on Cotton Technology
Indian Journal of Fibre and Textile Research | Year: 2011

The improved Gossypium arboreum cultivars, along with the traditionally grown Gossypium arboreum and Gossypium hirsutum cultivars, have been collected and evaluated comprehensively for fibre quality parameters (physical, morphological and structural). The comparative analysis of the data clearly establishes the parity between improved G. arboreum and traditionally grown G. hirsutum strains. A noticeable qualitative improvement with respect to most of the parameters evaluated, has been observed in comparison to the conventionally cultivated G. arboreum strain RG-8. In addition to that, the improved G. arboreum cultivars seem to retain the inherent trait of the species of producing highly mature fibre.

Vivekanadana M.V.,Central Institute for Research on Cotton Technology | Raj S.,Central Institute for Research on Cotton Technology | Suffixeenivasan S.,Central Institute for Research on Cotton Technology | Nachane R.P.,Central Institute for Research on Cotton Technology
Indian Journal of Fibre and Textile Research | Year: 2011

Four greige cotton denim fabrics differing in weight per unit area have been subjected to five different finishing treatments. Physical and structural properties of these fabrics have been determined to assess their influence on warm-cool feeling to touch of the fabrics. It is observed that the lighter fabrics made of finer count yarns are cooler as compared to thicker fabrics. Higher pick density leads to an increase in q-max value and therefore the cool feeling. Washing treatments in general show a positive influence on cool feeling, while thickness, bulk density and cover factor show the reverse effect. q-max is found to be higher for fabrics with reduced geometric roughness or increased smoothness.

Guruprasad R.,Central Institute for Research on Cotton Technology | Behera B.K.,Indian Institute of Technology Delhi
Fibers and Polymers | Year: 2014

The possibility of prediction of bending rigidity of cotton woven fabrics with the application of Neuro-genetic model has been explored. For this purpose, number of cotton grey fabrics meant for apparel end-use was desized, scoured, and relaxed. The fabrics were then conditioned and tested for bending properties. A feed-forward neural network model was first formed and trained with adaptive learning rate back-propagation with momentum. In the second model, a hybrid learning strategy was adopted. A genetic algorithm was first used as a learning algorithm to optimize the number of neurons and connection weights of the neural network. Later, a back-propagation was applied as a local search algorithm to achieve global optima. Results of hybrid neural network model were compared with that of back-propagation neural network model in terms of their prediction performance. Results show that the prediction by Neuro-genetic model is better in comparison with that of back-propagation neural model. © 2014 The Korean Fiber Society and Springer Science+Business Media Dordrecht.

Bhowmick M.,Central Institute for Research on Cotton Technology | Mukhopadhyay S.,Indian Institute of Technology Delhi | Alagirusamy R.,Indian Institute of Technology Delhi
Textile Progress | Year: 2012

Natural fibres were initially used in composite materials to predominately improve bulk and reduce cost rather than improving mechanical properties. But the environmental problems associated with the production and use of synthetic fibres have changed the scenario. In the previous decade, natural fibres have been extensively used as reinforcement materials for both synthetic and bio-degradable matrices. Natural fibre reinforcements have mostly improved flexural and impact properties, but tensile strength improvement has been marginal and has been an area of investigation. Many attempts have been made towards improving mechanical properties, with efforts directed at improving the interface, newer methods of production of composites, new modelling techniques etc. In this detailed review, an attempt is made to critically analyse the various research efforts directed towards improving the mechanical properties of natural fibre reinforced composites. © 2012 Copyright Taylor and Francis Group, LLC.

Savadekar N.R.,Institute of Chemical Technology | Karande V.S.,Institute of Chemical Technology | Vigneshwaran N.,Central Institute for Research on Cotton Technology | Bharimalla A.K.,Central Institute for Research on Cotton Technology | Mhaske S.T.,Institute of Chemical Technology
International Journal of Biological Macromolecules | Year: 2012

Bio-based nanocomposite films were successfully developed using nanofibrillated cellulose (NFC) as the reinforcing phase and kappa-carrageenan (KCRG) as the matrix. NFC was successfully synthesis from short stable cotton fibers by chemo-mechanical process. The bionanocomposites were prepared by incorporating 0.1, 0.2, 0.3, 0.4, 0.5, and 1. wt% of the NFC into a KCRG matrix using a solution casting method there characterization was done in terms of thermal properties (DSC), morphology (SEM), water vapor transmission rate (WVTR), oxygen transmission rate (OTR), X-ray diffractograms (XRD), and tensile properties. The main conclusion arising from the analysis of the result is that the bionanocomposites containing 0.4. wt% of NFC exhibited the highest enhancement in tensile strength it is almost 44% improvement. WVTR and OTR results showed improvement of all nanocomposite film compare to control KCRG film. © 2012 Elsevier B.V.

Sharma M.,Central Institute for Research on Cotton Technology | Nachane R.P.,University of Mumbai
Indian Journal of Fibre and Textile Research | Year: 2010

A simple novel method has been developed for scouring different varieties of cotton fibres and fabrics using non-ionic surfactant and the results are compared with those of the conventional method. It is observed that the novel method does not affect the 2.5% span length, micronaire and tenacity of the cotton. However, the uniformity ratio is found to decrease on treatment. Sinking time for the treated cotton remains within the standard limits, thus making it suitable as absorbent. On comparing with conventional method, it is found that the dye uptake, and colour fastness to washing and perspiration of cotton fabrics treated with the new method are equal to or better than those of the fabrics treated with conventional method. The new method is not only simple to operate but also ecofriendly and economic.

Patil P.G.,Central Institute for Research on Cotton Technology | Patil V.,Central Institute for Research on Cotton Technology
Journal of Engineered Fibers and Fabrics | Year: 2010

Double roller gins are commonly used in India for ginning seed cotton. International Textile Manufacturers Federation's survey 2005 reported that degree of grease and oil contamination in cotton lint is serious in India 1. Study revealed that the source of this contamination is the gearbox (power transmission system) of double roller gin as it is filled with grease/oil measuring about 20 kg. Prototype double roller gin has been designed and developed with new power transmission system which minimizes the use of oil and grease to a great extent. High Volume Instrument's results on fiber parameters indicated that quality of lint is at par with existing double roller gin with no prospect of oil and grease contamination. Developed machine is useful for cotton breeders, ginners, farmers to ascertain the ginning percentage and purity of seeds could be maintained. This prototype double roller gin could be the basis for design of modified double roller gin of a commercial size.

Banerjee D.,Central Institute for Research on Cotton Technology | Chattopadhyay S.K.,Central Institute for Research on Cotton Technology | Tuli S.,Indian Institute of Technology Delhi
Indian Journal of Fibre and Textile Research | Year: 2013

With the development of high resolution infrared cameras, thermography is gaining increased attention of the researcher not merely as a non-contact tool to measure surface temperature of the objects, but also as a tool in fine physical experiments to analyze thermo-physical phenomena. Apart from their regular application in condition monitoring and preventive maintenance, the infrared cameras are slowly finding application in research and development. In the field of textile research, the application of thermal imaging is still at its infancy. Most of the present applications are for qualitative observations of surface temperature profile of the object. In the present paper, various applications of thermography in textiles and allied fields have been reported with a projection of potential future research where thermography may play crucial roles.

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