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The manuscript is a section of research completed for the overall impact performance of riot-police-helmet-shells having continuously textile reinforcement. In this research paper, manufacturing of double fabric layered helmet and its impact analysis has been discussed. Moreover, energy contained and blocking forces at various zones at the police-head protector shells were assessed. Results are also compared with the previous work for the impact evaluation of single piece riot-police-helmet-shell. The comparative results show significant difference in values in comparison with single layered riot-police-helmet-shell. These results can lead to the development of Riot-police-helmet-shells that can resist high velocity impact.

The usage of textile composites as lightweight gadgets is increasing day by day. The application range varies from personal protective tools to aerospace vehicle parts. However, every specific application demands specific functionality. Anisotropic nature of textile materials makes it possible to design composites in structural as well as non-structural shapes. In this research, single and multilayered textile composites were fabricated by using cotton woven fabric as a reinforcement and unsaturated polyester resin as a polymer. The fabrication was done at different degrees of curvature with different fabric orientations (i.e. the positioning of second and third layer fabric was turned from warp to weft) in multilayered composites to analyze their effect on the impact property of the resultant composite. Falling dart impact test was performed, to measure the impact properties of the samples. The curved specimens had shown higher strength as compared to the flat specimens. Furthermore, the increment in the degree of curvature causes the rise in fractural energy value. The number of layers has a direct effect on impact property as the number increases, the strength also increases. Finally, there was no significant effect of fabric orientation observed in double and triple layered composites.

The current research deals with bio-composites developed by using four different types of lignocellulosic natural fibers, e.g., jute, sisal, coconut/coir, and sugarcane (bagasse) for reinforcement....

Knitted fabrics are renowned for stretch properties which owe to their comfort properties such as formability, fitting to the human body and shape retention after wearing. Optimum stretch is basic requirement in knitted socks to support blood flow in legs and feet. This stretch is achieved with fabric structure type and material used in it. Different factors affect the stretch and recovery of sock, but most contributing factors are elastane percentage, main yarn material and finishing process type. Four different percentages of elastane in plaiting (4%, 6%, 8% and 10%), two main yarns materials (Cotton and Polyester/Cotton PC), and two finishing process types(Wash and bleach) were taken as level of input variables to study their effect on stretch and recovery. Stretch and recovery tests were performed on knitted sock tube. After testing, Minitab software was used for analysis of variance of obtained results using full factorial design. Significance of all factors and levels was analyzed. It was found that with the increase in elastane percentage stretch was decreased and recovery was increased. Cotton was found to have less stretch and more recovery percentage as compared to PC. Additionally it was observed that washing treatment produced significantly higher stretch and lesser recovery than bleaching. Similar trend was also observed in interaction plot indicating that all variables were dependent on each other.

The study was aimed to develop a knitted denim fabric and investigate its properties. The said fabric has similar visualappearance to the woven denim fabric, offering additional stretch properties. The twill effect was produced on circularknitting machine using cross terry structures. Woven denim fabric was also produced to compare its properties withknitted denim. The Physical and comfort properties of these fabrics like air permeability, thermal resistance and moisturemanagement, were investigated. Experimental investigation of serviceability i.e Pilling was also carried out. The purposeof study is to compare both woven and knitted denim fabric properties.

Needleless electrospinning is expected to produce nanofibers with a large productivity. In this study, a sprocket wheel disk was used as spinneret to electrospin nanofibers. The sprocket disk shows reliable electrospinning process. In comparison with the conventional disk spinneret, which has no sprocket on the edge, the sprocket wheel produced more uniform nanofibers with smaller fiber diameter. The electric field analysis results indicated that the sprocket wheel generates higher intensity of electric field.

The extrusion of ultra high molecular weight polyethylene (UHMWPE) fibres cannot be achieved by conventional extrusion processes due to its very high melt viscosity. To overcome this limitation, UHMWPE is first dissolved in a petrochemical to form a gel before extrusion. The petrochemicals used to dissolve the polymer then need to be removed using other chemicals making the process unfriendly to the environment. This article is focused on finding an environmentally friendly, natural solution to replace these chemicals and altering the process to potentially reduce the process cost.