Basalt hybrid woven textile materials for advanced thermal applications

The thermal properties of hybrid basalt-polypropylene (B/PP), basalt-polyester (B/PET) and basalt-jute (B/J) as well as non-hybrid structures have been studied. The fabric structures have been developed as plain weave (PW) for B/PP, B/PET & B/J; matt weave (MW) for B/PP, B/PET & B/ J; and 1/3 twill weave (TW) for basalt-PP, basalt-PET, and basalt–Jute along with the non-hybrid fabrics. The thermal properties of the fabrics, such as thermal conductivity and thermal resistance are studied along with the physiological behavior. Thermal properties are measured by Alambeta and TCi. Correlation between theoretical and experimental measurement of thermal conductivity are also studied. Air permeability is tested by air permeability tester. Based on the results, the influence of fabric structure on specific thermal insulation parameters are analyzed. The findings show that there is a significant impact on thermal properties of basalt hybrid woven structures by geometrical parameters of weave. Structure and fibre type have strong influence on thermal properties. Twill weave structures show higher air permeability and thermal resistance in all combinations

Thermo-physiological properties of 3D warp knitted spacer fabrics for car seat application

475-485Thermal comfort properties of 3-Dimensional knitted spacer fabrics have been studied in order to replace the existing polyurethane foams in the car seat and back supports. The influence of different characteristics of spacer fabrics, like structure, areal density, thickness and density on thermo-physiological performance has been studied. The potential thermal behavior is identified with the support of the thermal conductivity and resistance evaluation. The air and water vapor permeability have been measured and analyzed in-order to study the breathable performance of spacer fabrics. Advance statistical evaluation and two-way analysis of variance is used to analyze the significance of various factors on required properties. The result shows that spacer fabric with a hexagonal net structure has more open structure on surface than lock knit fabrics, which results in highly permeable to air with good thermal conductivity. It is also observed that, the hexagonal net fabrics have the ability to pass more water vapor than the fabrics with lock knit structure on the surface. These findings are the important requirements for designing the car seats with required thermal comfort properties using 3D spacer fabrics

Thermo-physiological properties of 3D warp knitted spacer fabrics for car seat application

Thermal comfort properties of 3-Dimensional knitted spacer fabrics have been studied in order to replace the existingpolyurethane foams in the car seat and back supports. The influence of different characteristics of spacer fabrics, likestructure, areal density, thickness and density on thermo-physiological performance has been studied. The potential thermalbehavior is identified with the support of the thermal conductivity and resistance evaluation. The air and water vaporpermeability have been measured and analyzed in-order to study the breathable performance of spacer fabrics.Advance statistical evaluation and two-way analysis of variance is used to analyze the significance of various factors onrequired properties. The result shows that spacer fabric with a hexagonal net structure has more open structure on surfacethan lock knit fabrics, which results in highly permeable to air with good thermal conductivity. It is also observed that, thehexagonal net fabrics have the ability to pass more water vapor than the fabrics with lock knit structure on the surface.These findings are the important requirements for designing the car seats with required thermal comfort properties using3D spacer fabrics

Multicriteria Decision-Making in Complex Quality Evaluation of Ladies Dress Material

Quality is the essence of any product for consumer satisfaction. However, different people have different perception of quality. Eventually the definition of quality varies from product to product and thus it is much more complex in textile clothing material evaluation. The end use application of a specific clothing material determines what should be the parameters of quality evaluation. Thus, the evaluation based on subjective assessment becomes unpredictable and unquantifiable. Quality for dress materials is not simply a physical parameter but something called as psycho-physical parameter. In recent times, many objective evaluation systems have been developed to evaluate the apparel grade textile materials with regard to their quality parameters. However, the evaluation does not involve enough statistical treatment of data so as to obtain a parametric weighted characterization of complex quality. The current work deals with parametric approach to complex quality evaluation based on multicriteria decision-making approach for ladies dress materials. The ladies dress materials are of numerous varieties and choices across the globe. The selection and marketing of these kinds of textile materials need to be given proper emphasis as it depends not only on physical parameters but also on climate, geography, ethnic group, market trend, age group, gender, and many such complex parameters, which are not quantifiable in absolute terms. In this study, woven fabrics used for ladies dress materials are collected from the market and they were evaluated for the consumer-oriented property parameters. A parametric approach is adopted to quantify the overall quality of these dress materials. Various objective techniques were used to evaluate the comfort and esthetic parameters. A complex quality index (CQI) was estimated with weighted combination of all the contributing parameters and total quality index was calculated. Selected consumers with different education level, age, and gender were interviewed to get a statistic of their opinion about quality parameters preferred by them. This complex quality index/degree of satisfaction shows very high correlation with subjective judgment. A CQI can be evaluated for each kind of clothing material looking into their applications

Effect of sol–gel treatment on physical, chemical and mechanical stability of copper-coated conductive fabrics: focus on EMI shielding effectiveness

Publisher Copyright: © 2022, The Author(s).The development of electronic and communication technology keeps us updated, but it also creates electromagnetic interference (EMI), which causes infrastructure, hospitals, military facilities, nuclear power plants and delicate devices to malfunction. Therefore, it is crucial to stop the EMI-related infrastructure and electronic component failure. Copper-coated textiles are one potential example of the electrically conducting materials that might be utilized to provide an EMI shielding. However, the copper-coated materials’ performance is typically reduced by chemical and mechanical deterioration, especially when it comes to EMI shielding. In this work, we have improved their durability of Cu-coated nonwoven fibrous materials (Milife fabric) by simple silanization treatment. Later, the mechanical and chemical stability was assessed in terms of their morphology and EMI shielding effectiveness (EMSE). The silane coating helps to protect the Cu layer from degradation due to mechanical forces and chemical environment. Silanes also be a key element in obtaining improve the EMI shielding properties for a longer period. The formation of conductive structures on the fibrous materials was observed using a scanning electron microscope (SEM), which further confirms the effect of silane coating on chemical stability, abrasion and washing resistance of Cu-coated fibrous materials (cMi) was analyzed. In addition to this, the EMSE values of the silane-coated cMi fibrous materials were used to evaluate the physical, chemical and mechanical stability of the materials.Peer reviewe