Effects of Composite Coatings Functionalized with Material Additives Applied on Textile Materials for Cut Resistant Protective Gloves

The objective of the present work was to evaluate the effects of different types of particles added to a polymer paste applied onto a textile carrier on the cut resistance of the resulting material. Knitted aramid textile samples were coated in laboratory conditions using a polymer paste that was functionalized with 12 types of reinforcing particles of different chemical compositions and size fractions. Cut resistance was tested in accordance with the standard EN ISO 13997:1999 and the results were subjected to statistical analysis. The effects of additive particles on the microstructure of the polymeric layer were assessed by means of scanning electron microscopy. The type and size of the particles affected the cut resistance of the functionalized knitted fabric. They were also found to change the morphology of the porous structure. Composite coatings containing the smallest additive particles exhibited the best cut resistance properties.

Preliminary Experimental Investigation of Cut-Resistant Materials: A Biomimetic Perspective

The objective of the work was the preliminary experimental investigation of cut-resistant materials including a biomimetic perspective. The effects of the cutting were expressed as static and dynamic cut resistance of the following materials: knitted fabrics, woven fabrics, continuously coated knitted fabrics, and dot-coated knitted fabrics. The cutting process gives rise to frictional forces, but the current test methods for cut-resistant gloves are not designed to measure them. Therefore additionally, the cut resistance of the material was evaluated using a modified procedure based on the standard EN 1082-1, taking into consideration grip strength tests to assess if there is a potential correlation between cut resistance and anti-slip properties.

Cutting resistance of flexible armour using multiple layers of triaxial kevlar fabric

The textiles capable of cutting resistance found applications in the industrial and military areas to construct flexible lightweight soft body armors. In the present work, a theoretical model to understand the mechanism of fabric cut resistance in a different direction for weft-knitted, triaxial, and multiple layers structures. An experimental study of cutting resistance force was done on weft-knitted fabric with Kevlar 29 triaxial fabrics in multiple layers structure to support derived mathematical model for the effect of multiple layers structure on their cutting force. The study examines specific cut resistance of the structure from four layers of Kevlar triaxial fabrics covered with knitted fabric on both sides. The angle of cutting force varied from 0°, 60°, and 90° with respect to the yarn inclination. Results show that the cutting force of the multilayer structure is linearly proportional to the number of Kevlar triaxial fabrics layers. The specific cut resistance value of the structure from four layers of Kevlar triaxial fabrics, covered with knitted fabric on both sides, reached 544, 435, and 326 (N/g/cm2) for cutting directions: angled 60°, vertical, and horizontal, respectively. In this work, the comparison between the triaxial fabric of high areal density and multiple layers of triaxial fabric with resultant same areal density indicates that a better specific cutting force was achieved in the first case. Furthermore, it investigated the relationship between triaxial surface density, the direction of cutting, and the number of triaxial fabric layers and discussed the optimum specific properties of the different structures.

Development of a process chain for the production of high-performance 100% metal spun yarns based on planed metal staple fibres

The high potential of metal fibres for various technical applications including filtration, electrical, heat and cut resistance or composite applications is still not fully exploited due to their high production costs. This paper presents the development of a new process chain for spinning 100% metal spun yarns from planed metal staple fibres as an alternative to conventional metal fibres. The developed spinning process chain begins with a stretch breaking process to create metal staple fibre sliver with a narrow fibre length distribution and defined mean fibre length. Next, a drafting process on a draw frame is performed in order to produce highly uniform metal staple fibre sliver. This is the basis for the development of a flyer spinning process to realise high-performance metal spun yarn. Finally, the fundamental relationships between fibre properties, processing characteristics, semi-finished product properties and the performance of the resulting metal spun yarns are described in detail.

Cut resistant characteristic of weft plain-knitted structure for protective clothing

PurposeThe paper aims to study cut resistant property of basic weft plain-knitted fabric for protective clothing.Design/methodology/approachEffects of fiber materials, fabric direction and knitting technology (sinking-depth) were explored, respectively. Cut process of fabric was tracked and the theoretical analysis was provided to evaluate energy transferring of cutting. Fiber-based cut behavior was observed by SEM images. Deformation energy stored in the loop due to yarn bending was regard as initial elastic potential energy of the fabric, which was related to loop structure.FindingsCut resistance of the fiber material was the dominant factor for cut resistance of weft plain-knitted fabric, while unit loop structure played a critical role in improving cut resistance.Social implicationsCut resistance of the fiber material was the dominant factor for cut resistance of weft plain-knitted fabric, while the unit loop structure played a critical role in improving cut resistance.Originality/valueThe paper provides theoretical support of developing flexible protective clothing.

Development of an inexpensive functional textile product by applyingaccounting cost benefit analysis

This research is to utilize accounting cost benefit analysis for manufacturing of economically cost-effective cut resistantgloves knitted from core spun yarns made up of nylon and polyester with E-glass as core. E-glass has a significantimpact on the cut resistance and abrasion resistance of the gloves. The gloves are knitted by using core spun yarns,and tested for their physical, cut & abrasion resistant properties. Economic characteristics of final product are criticallyobserved and analysed through cost benefit analysis. Results elaborate that Polyester/E-glass hand gloves have spe-cial mechanical properties like Abrasion resistance and Blade cut resistance. Instead, Nylon/E-glass hand gloves havegood air permeability. Cost benefit analysis reveal that the outcomes are comparable to functional requirements withinlow cost.