Saturday, 17 April 2021

 Air Cleaner Home Textiles to Reduce Indoor Air Pollution: A Preliminary Study


  • November 2020, 
  • International Journal of Engineering and Technical Research 9(11):398-401

Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems. Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from in door sources and by not carrying indoor air pollutants out of the area. High temperature and humidity levels can also increase concentrations of some pollutants. In this study cotton fabric is treated with natural mineral (expressed as natural mineral1) and exposed with carbon mono oxide, carbon dioxide, nitrogen dioxide and sulphur dioxide gases individually. After passing through the fabric samples (untreated and treated with mineral), these gases were analysed quantitatively. Study indicated that there was a sharp reduction of these gases after passing through the mineral treated fabric as compared to the untreated fabric.

 Study to analyze and improve anti riot body protector

  • February 2021, 
  • Man-Made Textiles in India XLIX No. 1(January 2021):7-11

Anti riot body protectors are very essential personal protective equipment mostly used by paramilitary and police forces during riots. These body protectors, protect them against various possible threats such as stone-pelting, stabbing, petrol bomb attack etc. during riots. To understand the suitability of present body protector used by soldiers, a study was carried out. The study was divided in to three parts. In the first part of study, a survey was carried out using well designed questionnaire among the 95 soldiers of Rapid Action Forces (RAF). It was revealed from the survey that the soldiers need improved body protectors which can have better stab and impact resistance capability, better durability of hook and loop fasteners. Besides, they pointed out faulty design of body protector which made wearer uncomfortable. Study also pointed out that the design of the body protector was only for male. It was not suitable for female troopers. In the second part of the study, 25 body protectors were procured from the paramilitary forces, police forces and manufacturers to analyze their performance against stab and impact tests. The study revealed that most of the body protectors failed to qualify the requirement given in VPAM KDIW 2004, Edition 2011, standard used for analyzing stab and impact resistance properties of body protector. In the third part of study, composite materials were developed which qualified the requirement of stab resistant as per VPAM KDIW 2004, Edition 2011 standard.

 Analysis of dust resistance property of coated and laminated fabrics using newly developed instrument

  • March 2021, 
  • Colourage


Workers in the cement industry are engaged in the activities of packing, mixing, transportation and distribution. Being medium risk industry in terms of health hazards, workers are required to have protective work-wear to protect them from anticipating hazards due to the direct exposure of cement dust. Under this study an instrument has been developed to determine cement dust resistance nature of protective fabric. Six types of coated and laminated fabrics were tested on this instrument and their results are compared with air-permeability, hydrostatic head test and moisture vapour transmission properties of these fabrics.

 Workwear fabric for cement workers

  • March 2021, 
  • Asian Journal of Textile January-February(2021):46-51

A large numbers of workers are involved in construction work. As the cement is one of the main materials used in construction, there are chances of these workers to expose dry cement and concrete (wet cement mixture of broken stone or gravel) every day without knowing its harmful effect on their health. It was found that the skin of the workers get affected due to regular with wet concrete and dry cement which ultimately result in dermatitis. This study is divided into two parts. In the first parts a survey is conducted in government as well as private organizations situated in and around Delhi using well designed questionnaire to understand the problems faced by the workers working in cement user industry and also their expectation for the work wear. The survey revealed that most of the workers are migrated from various states and average age was 35 years. They are not having suitable work wear. Most of them were having symptom of swelled eyes, respiratory and skin problems. In the second part, four fabric samples were developed keeping in mind the expectations of workers, and tested for mass, thickness, air and water vapour permeability, chemical resistance, dust resistance and durability properties. Out of four fabric samples (coded as ‘A’, ‘B’, ‘C’ and ‘D’), sample ‘C’ was found to be better than others as it has lower mass, higher tear & tensile strength, lower UV exposure effect, better water vapour permeability. Other properties like air permeability, acid and alkali resistance of all the samples are found to be similar. Dust/cement resistant property of sample ‘C’ was also found better than other three fabric samples when measured at different air jet pressure.

 Creating dyeing effect on cotton fabric with disperse dyes

  • April 2021 
  • Journal of the Textile Association 81(Jan-Feb 2021)
Availability of water for dyeing and treatment of effluent are two major problems that Indian textile processing industry facing difficult to resolve. Consumption of water in dyeing of cotton using reactive dye is very high. In the present study, fabric samples were modified using different concentrations of resin. These modified samples were dyed with disperse dye using carrier dyeing process. The presence of resin on the surface of fabric was confirmed using FTIR technique. Digital image processing (DIP) method has shown the resin treated fabric surface became smoother than untreated cotton fabric. ANOVA study indicated that there was a strong relationship between resin percentage on fabric and colour value (K/s). The colour durability of dyed samples was also studied. These samples were also analyzed for tensile, tear, crease recovery angle and colour fastness properties.