Priti Sarker - Academia.edu (original) (raw)

Papers by Priti Sarker

International Journal of Textile Science, 2018

Crinkling or resin washing is one of the major dry process techniques that are done on almost all... more Crinkling or resin washing is one of the major dry process techniques that are done on almost all fashionable denim trousers. Generally crinkling means to form wrinkle in the specific position of the denim trouser by applying resin, then wrinkle formation and finally by curing. But resin changes the physical properties such as stiffness, weight loss due to abrasion, tensile strength etc. In this research work, four denim fabric of different GSM (gm/m2) were taken and then resin was sprayed on them randomly as simulating the actual resin spraying process that is done for resin wash or crinkling process. Then different physical properties of those denim fabrics were measured. These physical parameters were evaluated by different tests specifically bending length measurement, tensile strength test etc. These tests result gives a clear concept that, after resin spraying denim fabric gets stiffer, harsh and abrasive, more brittle that may affect the durability of the life time of denim g...

Fibers and Polymers, 2020

The practice of natural colorants for polyester fabric dyeing has been rampantly rising in our co... more The practice of natural colorants for polyester fabric dyeing has been rampantly rising in our consumer fashion. In this study, two separate natural colorants were extracted from watermelon (Citrullus lanatus) rind (WRS) and flesh (WFS) for polyester coloration. The optical and colorimetric properties of saps and dyed fabrics, dye fiber bonding phenomena, chromophores diffusion behaviors, color-fastness, ecological and economic aspects were examined through various analyses and the corresponding mechanisms were proposed. A wide range of chromophores diffusion was noticed for several parameter variations and the resulting diffusions were ranging from 42.67 to 83.13 %. Interestingly, WRS and WFS robust the UV shielding properties into the dyed fabric and the recorded UPF rating was found to be above 50. All color-fastness properties including sublimations were very good to excellent (4 to 4/5) except lightfastness. Finally, the ecological and economic aspects of WRS/WFS dyeing were also compared with commercial disperse dyes.

Manufacturing Science and Technology, 2019

This research work was endeavored to improve tensile strength of viscose woven fabric by using ch... more This research work was endeavored to improve tensile strength of viscose woven fabric by using chemical finishes like water repellent finishes with cross linking agent and softener. In this work, 100% viscose woven fabric was used and different types of samples were prepared by treating water repellent finishes, cross linking agent and softeners. The sample was investigated by tensile strength test (ASTM D5034), spray test (AATCC-22), water vapor test (cup method) and moisture regain test (ASTM D2495 oven dry method). Eight types of recipes were used in this research. For the variation of C 6-fluorocarbon the sample code-B (C 6-fluorocarbon 60 g/l, cross-linking agent 15 g/l and softener 10 g/l) showed better result in tensile strength and water spray test. Taking the amount of C 6-fluorocarbon (60 g/l) as constant and making variation cross linking agent which reached a conclusion that, sample-B1 (C 6-fluorocarbon 60 g/l, cross-linking agent 05 g/l and softener 10 g/l) showed better result for wet tensile strength, water spray test and moisture regain but showed less water vapor permeability. From this experiment it was evident that recipe which belongs to sample code B1 is suitable for improving the tensile strength of viscose fabric.

The Journal of The Textile Institute, 2020

Different approaches have been taken to develop a greener and sustainable cotton coloration proce... more Different approaches have been taken to develop a greener and sustainable cotton coloration process to reduce carbon footprint. Natural compound as a colorant is an excellent alternative to the harsh chemical-based reactive cotton coloration process. However, natural coloration requires improvement in colorimetric properties and a better understanding of the colorant absorption mechanism. Here, we report a process for cotton coloration using bio-friendly natural colorant extracted from watermelon rind. The optical and colorimetric properties of watermelon rind saps (WRS) and WRS dyed cotton fabrics, dye-fiber bonding, chromophores absorption and color-fastness were studied. The experiment showed that the absorption of chromophores into the fabric mainly depends on their molecular weight, the position of the anchoring group and thermal stability. Chromophore adsorptions ranged from 55.4 to 81.7% resulting in excellent dye-fiber chemical potential. Coloration temperature and mordant significantly affect the colorimetric properties of cotton fabric as found in this study. All the dyed cotton samples showed good color-fastness to washing, water, rubbing, and perspiration. Furthermore, cotton dyed with WRS had better UV-protection factor (UPF) than that of the mosty used chemical-intensive reactive dyed sample. Finally, the ecological and economic aspects of WRS dyeing were also compared with commercial reactive dyes.

Dimensional stability of cotton knitted fabric is a very crucial parameter which is important to ... more Dimensional stability of cotton knitted fabric is a very crucial parameter which is important to maintain for dye house operations. Due to structural limitations dimensional change of cotton is much higher in case of knit fabric than the woven one. In exhaust dyeing the fabric needs to undergo mechanical finishing by different machines such as slitting, dewatering or squeezing, stenter or tensionless dryer and open or tube compactor. In this study the effect of squeezer machine, stenter and open compactor was investigated on different structure of knit fabrics such as single jersey, 1x1 rib and pique of different GSM. It is found that GSM of the fabric remains about 9.21, 7.32 and 7.29% lower than the target GSM in case of single jersey, 1x1 rib and pique fabric respectively after dewatering which is overcome after stentering and compacting. Lengthwise shrinkage is significant for all fabric structure. The shrinkage of single jersey, 1x1 rib and pique fabrics found ± 5% after subseq...

Journal of Materials Science and Chemical Engineering

The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeri... more The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeric powder using tannin as mordant extracted from tamarind seed coat. For that, tamarind seed coat tannin was extracted and applied as natural mordant alone and in combination with metal mordant namely copper sulphate for dyeing silk fabric with the extract of turmeric powder. Dyeing parameters such as temperature, time and mordant concentration were varying for optimizing the process. The color strength, color coordinates, color fastness to wash, perspiration, water and rubbing were evaluated for examining dyeing performance. Firstly, tannin was extracted from tamarind seed coat and applying on the silk fabric at 95˚C temperature for 45 min by varying concentration. Among them 15 g/l shows better results. Some samples were mordanted with both 15 g/l extracted tannin and 0.5% copper sulphate solution. The mordanted samples were dyed with turmeric dye by varying the time and temperature. By analyzing the test results, the sample mordanted with extracted tannin showed high color strength and good fastness properties dyeing at 80˚C for 60 min. The application of 0.5% copper sulphate mordant enhanced sustainable wash fastness properties.

Global Journal of Material Science and Engineering

This research work aims to fabricate bamboo fabric reinforced polyester composites (BFRPCs) and i... more This research work aims to fabricate bamboo fabric reinforced polyester composites (BFRPCs) and investigate the mechanical and degradation properties of BFRPCs. Composite samples were prepared using hand lay-up technique. Bamboo fabric was used as reinforcement material, unsaturated polyester resin (UPR) was used as matrix and Methyl ethyl ketone peroxide (MEKP) was used as initiator which was employed as 0.5, 1, 2, 3 and 4% concentration. The mechanical properties of the BFRPC samples such as tensile strength (TS), tensile modulus (TM), bending strength (BS), bending modulus (BM) and impact strength (IS) were conducted. The degradation behaviors of the composites in soil burial, immersed in alkaline water and saline water were also evaluated. The BFRPC sample with 2 (%) MEKP concentration showed better tensile properties with TS and TM values of 39 MPa and 744 MPa respectively. For the 1 (%) MEKP concentration, the maximum values of BS, BM and IS were found to be 62.8 MPa, 1229 MPa...

Sustainable Chemistry and Pharmacy

Environmental Technology & Innovation

Journal of Materials Science and Chemical Engineering, 2020

The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeri... more The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeric powder using tannin as mordant extracted from tama-rind seed coat. For that, tamarind seed coat tannin was extracted and applied as natural mordant alone and in combination with metal mordant namely copper sulphate for dyeing silk fabric with the extract of turmeric powder. Dyeing parameters such as temperature, time and mordant concentration were varying for optimizing the process. The color strength, color coordinates , color fastness to wash, perspiration, water and rubbing were evaluated for examining dyeing performance. Firstly, tannin was extracted from tama-rind seed coat and applying on the silk fabric at 95˚C temperature for 45 min by varying concentration. Among them 15 g/l shows better results. Some samples were mordanted with both 15 g/l extracted tannin and 0.5% copper sulphate solution. The mordanted samples were dyed with turmeric dye by varying the time and temperature....

Journal of Textile Science and Technology

Exploration on hydrogel fibres concerning about smart based application in the medical sector has... more Exploration on hydrogel fibres concerning about smart based application in the medical sector has stimulated great interests for the last couple of years due to its wide range of purposes that include actuators, artificial adhesives, transplantable tissue organs, cell scaffolds, cell therapeutics, wound healing, cartilage or bone regeneration. Nevertheless, recently hydrogel fibre based biomaterials have drawn great concentration for use in a wide variety of biomedical applications like the sustained release of drugs. This is due to the fact that, hydrogel fibers are biocompatible and their similarity about physical properties is in relation with natural tissue. This review article prescribes about the application of hydrogels with diversified prospects in tissue engineering, wound care dressings, soft tissue recovery and plastic surgery. As the products of hydrogels are composed with a group of polymeric materials, the hydrophilic network structure makes them competent for holding an immense quantity of water in their three-dimensional polymer network structure. A wide-ranging application of these products in modern industrial and environmental areas has already taken into account to be of prime importance. Inevitably, natural hydrogels right is now gradually replaced by synthetic types due to their larger amount of water absorption capacity, durability alongside with wide ranges of raw chemical resources.

International Journal of Engineering & Technology, 2014

The scouring and bleaching performance of conventional process (hydrogen peroxide, sodium hydroxi... more The scouring and bleaching performance of conventional process (hydrogen peroxide, sodium hydroxide), was compared to that of enzymatic process using enzyme (arylesterase) which catalyst the discontinuous peroxide reaction. The whiteness and reflectance% indicating bleaching performance and absorbency and weight loss % was used as a measure of the scouring performance. Comparison of these performance and the effects are analyzed by using graphical representation. The weight loss% of enzymatic process was less than conventional process. In conventional process the reflectance % and absorbency increased and whiteness decreased with the increasing of concentration of caustic soda and the aforementioned properties were increased with the increasing of concentration of H2O2. In enzymatic process the reflectance % of cotton fabric increased and whiteness and absorbency fluctuated with the increasing of concentration of enzyme. Meanwhile reflectance %, absorbency and whiteness increased wi...

International Journal of Textile Science, 2018

Crinkling or resin washing is one of the major dry process techniques that are done on almost all... more Crinkling or resin washing is one of the major dry process techniques that are done on almost all fashionable denim trousers. Generally crinkling means to form wrinkle in the specific position of the denim trouser by applying resin, then wrinkle formation and finally by curing. But resin changes the physical properties such as stiffness, weight loss due to abrasion, tensile strength etc. In this research work, four denim fabric of different GSM (gm/m2) were taken and then resin was sprayed on them randomly as simulating the actual resin spraying process that is done for resin wash or crinkling process. Then different physical properties of those denim fabrics were measured. These physical parameters were evaluated by different tests specifically bending length measurement, tensile strength test etc. These tests result gives a clear concept that, after resin spraying denim fabric gets stiffer, harsh and abrasive, more brittle that may affect the durability of the life time of denim g...

Fibers and Polymers, 2020

The practice of natural colorants for polyester fabric dyeing has been rampantly rising in our co... more The practice of natural colorants for polyester fabric dyeing has been rampantly rising in our consumer fashion. In this study, two separate natural colorants were extracted from watermelon (Citrullus lanatus) rind (WRS) and flesh (WFS) for polyester coloration. The optical and colorimetric properties of saps and dyed fabrics, dye fiber bonding phenomena, chromophores diffusion behaviors, color-fastness, ecological and economic aspects were examined through various analyses and the corresponding mechanisms were proposed. A wide range of chromophores diffusion was noticed for several parameter variations and the resulting diffusions were ranging from 42.67 to 83.13 %. Interestingly, WRS and WFS robust the UV shielding properties into the dyed fabric and the recorded UPF rating was found to be above 50. All color-fastness properties including sublimations were very good to excellent (4 to 4/5) except lightfastness. Finally, the ecological and economic aspects of WRS/WFS dyeing were also compared with commercial disperse dyes.

Manufacturing Science and Technology, 2019

This research work was endeavored to improve tensile strength of viscose woven fabric by using ch... more This research work was endeavored to improve tensile strength of viscose woven fabric by using chemical finishes like water repellent finishes with cross linking agent and softener. In this work, 100% viscose woven fabric was used and different types of samples were prepared by treating water repellent finishes, cross linking agent and softeners. The sample was investigated by tensile strength test (ASTM D5034), spray test (AATCC-22), water vapor test (cup method) and moisture regain test (ASTM D2495 oven dry method). Eight types of recipes were used in this research. For the variation of C 6-fluorocarbon the sample code-B (C 6-fluorocarbon 60 g/l, cross-linking agent 15 g/l and softener 10 g/l) showed better result in tensile strength and water spray test. Taking the amount of C 6-fluorocarbon (60 g/l) as constant and making variation cross linking agent which reached a conclusion that, sample-B1 (C 6-fluorocarbon 60 g/l, cross-linking agent 05 g/l and softener 10 g/l) showed better result for wet tensile strength, water spray test and moisture regain but showed less water vapor permeability. From this experiment it was evident that recipe which belongs to sample code B1 is suitable for improving the tensile strength of viscose fabric.

The Journal of The Textile Institute, 2020

Different approaches have been taken to develop a greener and sustainable cotton coloration proce... more Different approaches have been taken to develop a greener and sustainable cotton coloration process to reduce carbon footprint. Natural compound as a colorant is an excellent alternative to the harsh chemical-based reactive cotton coloration process. However, natural coloration requires improvement in colorimetric properties and a better understanding of the colorant absorption mechanism. Here, we report a process for cotton coloration using bio-friendly natural colorant extracted from watermelon rind. The optical and colorimetric properties of watermelon rind saps (WRS) and WRS dyed cotton fabrics, dye-fiber bonding, chromophores absorption and color-fastness were studied. The experiment showed that the absorption of chromophores into the fabric mainly depends on their molecular weight, the position of the anchoring group and thermal stability. Chromophore adsorptions ranged from 55.4 to 81.7% resulting in excellent dye-fiber chemical potential. Coloration temperature and mordant significantly affect the colorimetric properties of cotton fabric as found in this study. All the dyed cotton samples showed good color-fastness to washing, water, rubbing, and perspiration. Furthermore, cotton dyed with WRS had better UV-protection factor (UPF) than that of the mosty used chemical-intensive reactive dyed sample. Finally, the ecological and economic aspects of WRS dyeing were also compared with commercial reactive dyes.

Dimensional stability of cotton knitted fabric is a very crucial parameter which is important to ... more Dimensional stability of cotton knitted fabric is a very crucial parameter which is important to maintain for dye house operations. Due to structural limitations dimensional change of cotton is much higher in case of knit fabric than the woven one. In exhaust dyeing the fabric needs to undergo mechanical finishing by different machines such as slitting, dewatering or squeezing, stenter or tensionless dryer and open or tube compactor. In this study the effect of squeezer machine, stenter and open compactor was investigated on different structure of knit fabrics such as single jersey, 1x1 rib and pique of different GSM. It is found that GSM of the fabric remains about 9.21, 7.32 and 7.29% lower than the target GSM in case of single jersey, 1x1 rib and pique fabric respectively after dewatering which is overcome after stentering and compacting. Lengthwise shrinkage is significant for all fabric structure. The shrinkage of single jersey, 1x1 rib and pique fabrics found ± 5% after subseq...

Journal of Materials Science and Chemical Engineering

The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeri... more The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeric powder using tannin as mordant extracted from tamarind seed coat. For that, tamarind seed coat tannin was extracted and applied as natural mordant alone and in combination with metal mordant namely copper sulphate for dyeing silk fabric with the extract of turmeric powder. Dyeing parameters such as temperature, time and mordant concentration were varying for optimizing the process. The color strength, color coordinates, color fastness to wash, perspiration, water and rubbing were evaluated for examining dyeing performance. Firstly, tannin was extracted from tamarind seed coat and applying on the silk fabric at 95˚C temperature for 45 min by varying concentration. Among them 15 g/l shows better results. Some samples were mordanted with both 15 g/l extracted tannin and 0.5% copper sulphate solution. The mordanted samples were dyed with turmeric dye by varying the time and temperature. By analyzing the test results, the sample mordanted with extracted tannin showed high color strength and good fastness properties dyeing at 80˚C for 60 min. The application of 0.5% copper sulphate mordant enhanced sustainable wash fastness properties.

Global Journal of Material Science and Engineering

This research work aims to fabricate bamboo fabric reinforced polyester composites (BFRPCs) and i... more This research work aims to fabricate bamboo fabric reinforced polyester composites (BFRPCs) and investigate the mechanical and degradation properties of BFRPCs. Composite samples were prepared using hand lay-up technique. Bamboo fabric was used as reinforcement material, unsaturated polyester resin (UPR) was used as matrix and Methyl ethyl ketone peroxide (MEKP) was used as initiator which was employed as 0.5, 1, 2, 3 and 4% concentration. The mechanical properties of the BFRPC samples such as tensile strength (TS), tensile modulus (TM), bending strength (BS), bending modulus (BM) and impact strength (IS) were conducted. The degradation behaviors of the composites in soil burial, immersed in alkaline water and saline water were also evaluated. The BFRPC sample with 2 (%) MEKP concentration showed better tensile properties with TS and TM values of 39 MPa and 744 MPa respectively. For the 1 (%) MEKP concentration, the maximum values of BS, BM and IS were found to be 62.8 MPa, 1229 MPa...

Sustainable Chemistry and Pharmacy

Environmental Technology & Innovation

Journal of Materials Science and Chemical Engineering, 2020

The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeri... more The current study is aimed to explore the sustainable dyeing approach of silk fabric with turmeric powder using tannin as mordant extracted from tama-rind seed coat. For that, tamarind seed coat tannin was extracted and applied as natural mordant alone and in combination with metal mordant namely copper sulphate for dyeing silk fabric with the extract of turmeric powder. Dyeing parameters such as temperature, time and mordant concentration were varying for optimizing the process. The color strength, color coordinates , color fastness to wash, perspiration, water and rubbing were evaluated for examining dyeing performance. Firstly, tannin was extracted from tama-rind seed coat and applying on the silk fabric at 95˚C temperature for 45 min by varying concentration. Among them 15 g/l shows better results. Some samples were mordanted with both 15 g/l extracted tannin and 0.5% copper sulphate solution. The mordanted samples were dyed with turmeric dye by varying the time and temperature....

Journal of Textile Science and Technology

Exploration on hydrogel fibres concerning about smart based application in the medical sector has... more Exploration on hydrogel fibres concerning about smart based application in the medical sector has stimulated great interests for the last couple of years due to its wide range of purposes that include actuators, artificial adhesives, transplantable tissue organs, cell scaffolds, cell therapeutics, wound healing, cartilage or bone regeneration. Nevertheless, recently hydrogel fibre based biomaterials have drawn great concentration for use in a wide variety of biomedical applications like the sustained release of drugs. This is due to the fact that, hydrogel fibers are biocompatible and their similarity about physical properties is in relation with natural tissue. This review article prescribes about the application of hydrogels with diversified prospects in tissue engineering, wound care dressings, soft tissue recovery and plastic surgery. As the products of hydrogels are composed with a group of polymeric materials, the hydrophilic network structure makes them competent for holding an immense quantity of water in their three-dimensional polymer network structure. A wide-ranging application of these products in modern industrial and environmental areas has already taken into account to be of prime importance. Inevitably, natural hydrogels right is now gradually replaced by synthetic types due to their larger amount of water absorption capacity, durability alongside with wide ranges of raw chemical resources.

International Journal of Engineering & Technology, 2014

The scouring and bleaching performance of conventional process (hydrogen peroxide, sodium hydroxi... more The scouring and bleaching performance of conventional process (hydrogen peroxide, sodium hydroxide), was compared to that of enzymatic process using enzyme (arylesterase) which catalyst the discontinuous peroxide reaction. The whiteness and reflectance% indicating bleaching performance and absorbency and weight loss % was used as a measure of the scouring performance. Comparison of these performance and the effects are analyzed by using graphical representation. The weight loss% of enzymatic process was less than conventional process. In conventional process the reflectance % and absorbency increased and whiteness decreased with the increasing of concentration of caustic soda and the aforementioned properties were increased with the increasing of concentration of H2O2. In enzymatic process the reflectance % of cotton fabric increased and whiteness and absorbency fluctuated with the increasing of concentration of enzyme. Meanwhile reflectance %, absorbency and whiteness increased wi...