Scan Science and Technology
Contact Leading Edge Experts & Companies
Biopolishing
The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform
T Ramachandran – 1st expert on this subject based on the ideXlab platform
-
influence of Biopolishing on certain physical properties of cotton fabrics
Colourage, 2010Co-Authors: D Saravanan, R Rajendran, E M Rajesh, T RamachandranAbstract:Cellulases are, increasingly, being used in the Biopolishing of cotton fabrics to enhance the handle value of the fabrics. Though the effects of cellulase hydrolysis remain as the surface phenomena, changes in many physical aspects of the fabrics like weight, moisture properties, tensile and low stress mechanical properties take place during the processing. Improvement in the handle value is obtained on account of the changes that take place during the reaction.
-
Biopolishing of cotton fabrics with total cellulases of trichoderma reesei and optimization using taguchi methods
Journal of Applied Polymer Science, 2009Co-Authors: D Saravanan, C Dinesh, S Karthikeyan, A Vivekanandan, G Nalankilli, T RamachandranAbstract:Biopolishing of cotton fabrics enhances appearance and handle of the fabrics without compromising on essential properties. Process of Biopolishing is influenced by concentration of cellulases, temperature, pH, and duration of treatment, besides the activity levels of enzymes, method of mechanical agitations and construction features of fabrics. Optimization of process parameters, including mechanical agitations and fabric construction features, has been carried out using Taguchi methods followed by analysis of variance and confirmation tests. All the design parameters, used in the study, have predominant influence on weight loss, fabric strength after Biopolishing while thickness, bursting strength, abrasion losses, and flexural rigidity of the fabrics were significantly influenced by the concentration of cellulases together with duration of treatment. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
-
a review on influential behaviour of Biopolishing on dyeability and certain physico mechanical properties of cotton fabrics
Carbohydrate Polymers, 2009Co-Authors: D Saravanan, N S Vasanthi, T RamachandranAbstract:Biopolishing treatment, given to the cotton fabrics using cellulases, often influences dyebility and certain physical properties of the fabrics after treatments, besides improving appearance and handle values. Cellulase treatments prior to dyeing facilitate the dyeing process subsequently, while reactions of cellulases are retarded by the dyestuff present in the fabrics to different extents. Removal of protruding fibres imparts smooth appearance and defibrillation of cotton fibres alters the moisture absorption properties of the fabrics. Reduction in fabric strength, increase in elongation at break are also realized in Biopolishing in addition to improved handle values. An attempt has been made to review the influential behaviour of cellulase treatment on dyeability and physical properties of cotton fabrics.
C H Au – 2nd expert on this subject based on the ideXlab platform
-
effect of Biopolishing and uv absorber treatment on the uv protection properties of cotton knitted fabrics
Carbohydrate Polymers, 2014Co-Authors: C H AuAbstract:Abstract Cotton knitted fabrics were manufactured with gauge number 20 G by circular knitting machine with conventional ring spun yarn and torque-free ring spun yarn. Torque-free ring spinning is a new spinning technology that produces yarns with low twist and balanced torque. This study examined whether the impact of Biopolishing and UV absorber treatment on UV protection properties on cotton knitted fabric made of torque-free ring spun yarn is different. Biopolishing agent and UV absorber were used to treat the cotton knitted fabrics after scouring and bleaching. The UV protection properties were measured in terms of UV protection factor (UPF) and UV ray transmittance. Experimental results revealed that knitted fabric made from torque-free ring spun has better UPF than knitted fabric made from conventional ring spun yarn in untreated and biopolished states. However, knitted fabric made from conventional ring spun yarn has better UPF than knitted fabric made from torque-free ring spun after UV absorber treatment and combined UV absorber and Biopolishing treatment.
D Saravanan – 3rd expert on this subject based on the ideXlab platform
-
Biopolishing of cotton fabric with fungal cellulase and its effect on the morphology of cotton fibres
IJFTR Vol.38(2) [June 2013], 2013Co-Authors: D Saravanan, S Sree N Lakshmi, Senthil K Raja, N S VasanthiAbstract:Attempt has been made to analyse structural changes in cotton fibres occurred during Biopolishing using cellulases obtained from Trichoderma reesei. Cellulase hydrolysis results in weight loss of the samples, which, in turn, results in the splitting of fibres and removal of surface irregularities of the fibres as revealed by SEM images. Degree of crystallinity is not influenced by the Biopolishing process due to random hydrolysis of the cellulase enzymes on cotton fibres. Lateral order of the crystallites, measured between (101) and (10 1 ) peaks of the x-ray diffraction reduces from 0.662 to 0.667 on account o f the hydrolysis though the crystallite thickness measured perpendicular to (002) plane remains unchanged. FTIR results reveal the increased -OH bending, CH2 in-plane bending, and C-H vibrations of the cellulose chains in the biopolished cotton samples using cellulase.
-
influence of Biopolishing on certain physical properties of cotton fabrics
Colourage, 2010Co-Authors: D Saravanan, R Rajendran, E M Rajesh, T RamachandranAbstract:Cellulases are, increasingly, being used in the Biopolishing of cotton fabrics to enhance the handle value of the fabrics. Though the effects of cellulase hydrolysis remain as the surface phenomena, changes in many physical aspects of the fabrics like weight, moisture properties, tensile and low stress mechanical properties take place during the processing. Improvement in the handle value is obtained on account of the changes that take place during the reaction.
-
Biopolishing of cotton fabrics with total cellulases of trichoderma reesei and optimization using taguchi methods
Journal of Applied Polymer Science, 2009Co-Authors: D Saravanan, C Dinesh, S Karthikeyan, A Vivekanandan, G Nalankilli, T RamachandranAbstract:Biopolishing of cotton fabrics enhances appearance and handle of the fabrics without compromising on essential properties. Process of Biopolishing is influenced by concentration of cellulases, temperature, pH, and duration of treatment, besides the activity levels of enzymes, method of mechanical agitations and construction features of fabrics. Optimization of process parameters, including mechanical agitations and fabric construction features, has been carried out using Taguchi methods followed by analysis of variance and confirmation tests. All the design parameters, used in the study, have predominant influence on weight loss, fabric strength after Biopolishing while thickness, bursting strength, abrasion losses, and flexural rigidity of the fabrics were significantly influenced by the concentration of cellulases together with duration of treatment. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009