Comfort Of Fabrics Research Articles

Studies on Effect of Application of Capric Acid and Stearic Acid based Reactive Phase Change Materials (rPCM) with PHAMS Binder on Thermal Comfort of Cotton Khadi Fabric as Thermo-tropic Smart Textiles

ABSTRACT Studies on effect of capric acid and stearic acid based reactive phase change materials (rPCM) on physical properties and thermal comfort of cotton khadi fabric are reported by direct application of Capric acid (CA) and Stearic Acid (SA) as rPCM with Poly-Hydroxy-Amino-Methyl-Silicone reactive binder and MgCl2 as catalyst by simple pad-dry-cure technique (instead of cumbersome and costlier microencapsulation) which are embedded under PHAMS reactive binder film. Thermal characterization of pure Capric acid (CA), pure Stearic acid (SA) and mixture of each with PHAMS binder treated cotton substrate were carried out by cryogenic DSC at 0–100°C and at also at ambient (30°C) to 500°C. Between these two PCM materials, Capric Acid (CA) shows superior results. Amongst different concentrations of CA, 4% CA applied on Cotton khadi fabric with 2% PHAMS binder and 1/5 th (on weight of PCM material) of MgCl2 catalyst shows good thermo-regulating character in cotton khadi fabric showing freezing temperature (Tf) 8.3°C, Melting Temperature (Tm) 22.6°C with melting enthalpy 34.1 J/g and freezing enthalpy 36.5 J/g . water vapor transmission value of 28.3 gm/hour/m2 and air permeability value of 262.3 ft3/ft2/min, showing favorable thermal comfort, enabling storage and release of heat energy to improve the thermal comfort with changing environmental conditions.

Development and Characterization of Weft-Knitted Fabrics of Naturally Occurring Polymer Fibers for Sustainable and Functional Textiles.

This study focuses on the potential uses in textiles of fibers of soy protein (SP) and chitin, which are naturally occurring polymers that can be obtained from agricultural and food processing by-products and wastes. The as-received natural fibers were first subjected to a three-step manufacturing process to develop yarns that were, thereafter, converted into fabrics by weft knitting. Different characterizations in terms of physical properties and comfort parameters were carried out on the natural fibers and compared to waste derived fibers of coir and also conventional cotton and cotton-based fibers, which are widely used in the textile industry. The evaluation of the geometry and mechanical properties revealed that both SP and chitin fibers showed similar fineness and tenacity values than cotton, whereas coir did not achieve the expected properties to develop fabrics. In relation to the moisture content, it was found that the SP fibers outperformed the other natural fibers, which could successfully avoid variations in the mechanical performance of their fabrics as well as impair the growth of microorganisms. In addition, the antimicrobial activity of the natural fibers was assessed against different bacteria and fungi that are typically found on the skin. The obtained results indicated that the fibers of chitin and also SP, being the latter functionalized with biocides during the fiber-formation process, showed a high antimicrobial activity. In particular, reductions of up to 100% and 60% were attained for the bacteria and fungi strains, respectively. Finally, textile comfort was evaluated on the weft-knitted fabrics of the chitin and SP fibers by means of thermal and tactile tests. The comfort analysis indicated that the thermal resistance of both fabrics was similar to that of cotton, whereas their air permeability was higher, particularly for chitin due to its higher fineness, which makes these natural fibers very promising for summer clothes. Both the SP and chitin fabrics also presented relatively similar values of fullness and softness than the pure cotton fabric in terms of body feeling and richness. However, the cotton/polyester fabric was the only one that achieved a good range for uses in winter-autumn cloths. Therefore, the results of this work demonstrate that non-conventional chitin and SP fibers can be considered as potential candidates to replace cotton fibers in fabrics for the textile industry due to their high comfort and improved sustainability. Furthermore, these natural fibers can also serve to develop novel functional textiles with antimicrobial properties.

A Review of Contemporary Techniques for Measuring Ergonomic Wear Comfort of Protective and Sport Clothing

Abstract Protective and sport clothing is governed by protection requirements, performance, and comfort of the user. The comfort and impact performance of protective and sport clothing are typically subjectively measured, and this is a multifactorial and dynamic process. The aim of this review paper is to review the contemporary methodologies and approaches for measuring ergonomic wear comfort, including objective and subjective techniques. Special emphasis is given to the discussion of different methods, such as objective techniques, subjective techniques, and a combination of techniques, as well as a new biomechanical approach called modeling of skin. Literature indicates that there are four main techniques to measure wear comfort: subjective evaluation, objective measurements, a combination of subjective and objective techniques, and computer modeling of human–textile interaction. In objective measurement methods, the repeatability of results is excellent, and quantified results are obtained, but in some cases, such quantified results are quite different from the real perception of human comfort. Studies indicate that subjective analysis of comfort is less reliable than objective analysis because human subjects vary among themselves. Therefore, it can be concluded that a combination of objective and subjective measuring techniques could be the valid approach to model the comfort of textile materials.

Thermo-physiological comfort of half bleached woven fabrics made from different cotton yarns parameters

ABSTRACT Thermo-physiological comfort of apparel clothing must be suitable for the wearer both in winter and summer seasons. Poor thermo-physiological properties can lead to discomfort, fluctuation in body temperature, poor sweat management during wear and can affect human health as well as work efficiency. For this reason, optimum thermo-physiological comfort of clothing is a prerequisite by users for any given weather. The aim of this study was to investigate the effect of cotton yarn parameters on the thermo-physiological comfort of woven fabrics. Four types of woven fabrics were developed from cotton yarn with different counts, twist, coefficient of variation of mass (CVm), neps, hairiness, thin places, thick places, strength, and elongation. Yarn samples were produced separately by carding and rotor span before they were woven on an air jet machine with the same settings. Finally, the woven fabrics were finished in a combined finishing treatment process. Thermo-physiological properties of fabrics were measured and analyzed. Statistically analyzed results showed that thermal resistance, thermal conductivity, thermal absorptivity, and air permeability of fabrics had statistically significant change with P values of 0.029, 0.035, 0.005, and 0.000, respectively. Model equations were developed based on the results to predict the comfort of the fabric.

Development and evaluation methods of smart wearable clothing

With the development of technology and the increase in customer demand, smart clothing has become an indispensable part of the clothing field. Smart clothing is also gradually being applied to many aspects such as medical monitoring, daily protection, entertainment and sports. Based on the original wearing needs, sensors are integrated into the clothing to meet the miniaturization and convenience of electronic products. As a result, it has an impact on the comfort and aesthetics of clothing materials. During the research and development process, hardware devices such as sensors were added to the fabric, resulting in changes in the original structure and design of the clothing itself. There is no complete set of standards for smart clothing. This article starts with the development of smart clothing, classifies it, and sorts out some evaluation methods of smart clothing.

The influence of yarn parameters on thermo-physiological comfort of cotton woven fabrics

As the global temperature increases over time due to different environmental pollutions, apparel clothing with excellent thermo-physiological comfort needs to be developed to improve human health and comfort. Thermo-physiological comfort of apparel clothing must be suitable for the wearer both in winter and summer seasons. Poor thermo-physiological properties can lead to discomfort, fluctuation in body temperature, poor sweat management during wear and can affect human health as well as work efficiency. For this reason, optimum thermo-physiological comfort of clothing is a prerequisite for users at any given weather. The aim of this study was to investigate the effect of cotton yarn parameters on thermo-physiological comfort of woven fabrics. Four types of woven fabrics were developed from cotton yarn with different counts, twist, coefficient of variation of mass (CVm), neps, hairiness, thin places, thick places, strength and elongation. Yarn samples were produced separately by carding and rotor spun before they were woven on an air jet machine with same settings. Finally, the woven fabrics were finished in a combined finishing treatment process. Thermal resistance, thermal conductivity, thermal absorptivity, thermal diffusivity, air permeability and relative water vapor permeability of the woven fabrics were measured and analyzed. Statistically analyzed results showed that thermal resistance, thermal conductivity, thermal absorptivity and air permeability of fabrics had statistically significant change with P-values of .029, .035, .005 and .000, respectively. However, from the results, the yarn parameters did not affect thermal diffusivity and water vapor permeability of fabrics. Model equations were developed based on the results to predict the comfort of the fabric from the yarn parameters.

Selection and Optimization of Silane Coupling Agents to Develop Durable Functional Cotton Fabrics Using TiO2 Nanoparticles

In recent years there is progressive research conducted on modification of textile and nanoparticles for long-lasting performances without compromising the sensorial and non-sensorial comfort. The appropriate finishing treatment of textile is of great concern to impart comfort along with durable multifunctional characters. The main objective of this study was to achieve the durable functionality without compromising the comfort and physical properties of cotton fabric. TiO2 nanoparticles have been modified with two different silane coupling agents such as (3-Glycidoxypropyl)trimethoxysilane (GPTS) and 1,2-Bis(triethoxysilyl)ethane (BTSE) using different concentrations. The modified nanoparticles were characterized using Scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) to confirm the modification and fixing of chemicals at the surface. Modified nanoparticles were applied on textile by pad-dry-cure method. The treated cotton fabrics were washed to confirm the adhesion of nanoparticles after several washing cycles. The durable ultraviolet (UV) blocking capabilities were analyzed before and after washing. Then, comfort properties were evaluated and compared to made selection of best silane coupling agent having minimum effect on inherent properties of cotton textiles.

Water/moisture vapor permeabilities and thermal wear comfort of the Coolmax®/bamboo/tencel included PET and PP composite yarns and their woven fabrics

This study examined the water and moisture vapor permeabilities and the heat retention rate related to the wear comfort of the woven fabrics made from different types of composite yarn, the sheath/core composite yarn structure and non-circular cross-section of the constituent filaments (Coolmax®) in the core region played a very important role with high fabric porosity by including a capillary absorption in the wicking property. The fabric structures with high porosity composed of Coolmax® sheath/core yarns, and spun yarns with non-circular cross-sectional fibers (Coolmax®) affected strongly the fast drying rate due to moisture vapor diffusion of composite yarn fabrics. The moisture vapor permeability of the composite yarn fabrics was highly dependent on the porosity in the sheath/core yarn structures, In addition, the heat retention rate of the composite yarn fabric was strongly influenced by the high porosity due to the sheath/core and bulky staple yarn structures as well as the low thermal conductivity of the constituent fibers.

Ramifications of integrating copper nano on the flow properties of common textiles

ABSTRACT The demand for fabric comfort in common textiles is increasing and is closely associated with transmission properties. In this study, three common cloths namely 100% cotton, polyester-cotton blended (50% each), and 100% polyester were treated with copper nanomaterial and its influence on air, water, electrical resistance, and ultraviolet (UV) transmittance properties was studied. Cotton fabrics showed improvement (by 18%) in air permeability and moisture transmission. The UV transmission was restricted between 300 and 400 nm for all fabric samples. The surface electrical conductivity of treated polyester fabrics was 40.38 Ω−1 m−1 × 10−9. The changes in transmission properties post-treatment can mainly be attributed to changes in fabric porosity, packing fraction, thickness, and cover factor. The cotton fabric showed a decrease in the cover factor; justifying results that showed improvement in its liquid moisture and air permeability. The polyester fabrics were unaffected, whilst the blended fabrics were intermediate of the two.

Neuro-fuzzy Modelling and Experimental Study of the Physiological Comfort of Green Cotton Fabric Based on Yarn Properties

In textile and garment industry, the physiological comfort of fabric as one of the important parameters, can be improved by the fabric finishing treatment. Nevertheless, the toxic chemicals produced in this process leads to the pollution of the environment. Therefore, this study aims to improve the physiological comfort of the cotton fabric without applying the finishing process as green technology. Accordingly, air permeability and moisture transfer as two important parameters of the fabric physiological comfort are evaluated with the structural parameters of the cotton yarn using experimental and theoretical procedures. For theoretical evaluations, a novel neuro-fuzzy network (ANFIS) is proposed and used for modelling and estimation. The structural parameters of yarn are the yarn linear density, yarn twist and fineness of fibers, which are defined as inputs and air permeability and moisture transfer of the cotton samples are considered as the outputs of developed ANFIS model. According to the experimental and modeling results, the fiber fineness, yarn linear density (Ne) and yarn twist have the same effect on the output parameters. It is also found that both parameters of the physiological comfort sensory can be improved effectively without finishing process. Simulation results show the novel proposed ANFIS that has high learning capability, fast convergence and accuracy greater than 99% and negligible error value smaller than of 1% can be reasonably used in textile industry. In addition, for the winter garments, the optimum points of turns per meter (T.P.M) coefficient, English count of yarn, and fibers fineness are 4.5, 25 and 3, respectively.

Effect of Stitch Characteristics on Flammability and Thermo-Physiological Comfort Properties of Knitted Fabrics

Investigations on influence of stitch types in single jersey knitted fabric on flammability and comfort properties are carried out in this paper. Seven different knitted structures were developed on single jersey machine. In this study the effect of combinations of knit, miss and tuck stitches on comfort and flammability properties of knitted fabrics are investigated. Flammability test/properties e.g. afterglow time, char length, and weight loss % are evaluated. Several tests for thermophysiological comfort i.e. air permeability, thermal resistance and absorbency are also carried out. Results obtained show that both comfort and flammability properties are dependent on type of stitch, pattern of stitch, location of stitch and percentage of any stitch used in the fabrics. Moreover, fabric physical parameters also affect the flammability and comfort properties. The findings of this study shall work as a guide for material or textile engineers in the design and selection of fabric for apparel as well as high performance thermal protective clothing; as a result safety and occupational health of fire fighters will be improved.

Development of an adaptive method for regulating corset comfort based on the parameters of design zones identification

The influence of modeling effect of the structural zones of a corset for everyday purposes on ensuring its comfort was studied. It was established that the design structure of a corset varies significantly, depending on the magnitude of the modeling effect on different torso sections. At the same time, the mechanism of application of zonal anthropometric correction of a torso varies depending on the comfort of materials. It was proved that morphological parameters of the women’s torso zones affect the methods and parameters of the formation of the typical segmentation of a corset. Due to this, it became possible to substantiate analytically the ergonomic parameters of modeling effect in the «corset – torso» system for interactive designing the silhouette structures. Experimental studies proved the dispersion of the points of structural zones in the ranges of morphological types. It was shown that the rational variant of the combination of technological modules ensures a dimensional transformation of corset zones by means of grouping. In particular, the prospects of adaptation of the combined shape of a corset to the individual figure type were revealed. This makes it possible to assert the possibility of adaptive regulation of the feeling of comfort in a corset by combining zonal-modular models of anthropometric features and transformation of modeling effects in technological modules. It was shown that the technological module of a bustier cup provides the polyvariance of the breast volume through vertical and horizontal segmentation. The technological module of a belt-corset, in addition to the properties of the basic fabrics, takes into consideration frame elements. This results in fixing the desired modeling effect. Thus, there are some grounds to argue that the introduction of a new type of corset design will increase the productivity of design works. The practical comfort of the proposed technological solutions will ensure the reduction of the number of corset types and sizes, which in terms of comfort are universal for adjacent sizes

Thermal Comfort Properties of Bi-Layer Knitted Fabrics

Transmission of sensible and insensible perspiration is an important factor for fabric comfort. Improvement in the thermal comfort properties of knitted fabrics results in the achievement of fabric comfort. In this research, the thermal comfort properties of six bi-layer knitted fabrics were studied. The bi-layer knitted fabrics were made with different combinations of yarn in the inner layer and outer layer. The yarn combinations selected were polyester staple yarn-polyester staple yarn, polyester staple yarn-cotton, cotton-cotton, polypropylene-cotton, micro denier polyester-cotton, and micro denier polyester- micro denier polyester for the inner and outer layers, respectively. To find the thermal comfort properties of the six bi-layer knitted fabrics, an objective fabric test was carried out. The results showed that the bi-layer fabrics made from micro denier polyester, both in the inner and outer layers, exhibit better thermal comfort properties, thereby providing a higher level of comfort; hence, they are preferred for active sportswear. The water vapour permeability, air permeability, thermal resistance and thermal conductivity of the bi-layer knitted fabric made up of micro denier polyester as the outer and inner layer were found to be higher when compared to the other bi-layer structures. The results were discussed together with one – way ANOVA test results at a 0.05 significance level.

Arquitetura vernacular sustentável em área legalmente protegida

O objetivo neste trabalho foi propor uma unidade pedagógica em uma área de proteção ambiental (APA) da Ilha do Combú com base em resultados térmico-hídricos associados à verticalização e perda de área verde em Belém. Foram realizados estudos de campo, análise de taxas evapotranspiratórias, monitoramento de espécie com fins paisagístico, testes em ferramentas computacionais para avaliar carga térmica e insolação, bem como a elaboração do projeto arquitetônico. Levantaram-se dados de materiais disponíveis na região passíveis de mitigação da “pegada de lixo” e destino eficiente de madeira ilegal apreendida por órgãos ambientais, para uso em construção imersa no ambiente insular. A utilização de estratégias sustentáveis como os tetos e superfícies verdes potencializam a redução da carga térmica nos horários de alta incidência da radiação solar em regiões de baixas latitudes, como na APA da ilha do Combú. A unidade pedagógica proposta se integra ao lugar, permitindo ventilação cruzada permanente, bem como de ventilação forçada para os períodos mais críticos do dia e do ano, além da proteção das fachadas com dispositivos solares e sombreamentos A preocupação com o conforto ambiental e o reaproveitamento de materiais, potencializa a indicação da proposta de construção bioclimática na Amazônia brasileira.

Seamlessly knitted stretchable comfortable textile triboelectric nanogenerators for E-textile power sources

Abstract Textile-based triboelectric nanogenerator (t-TENG) is one of the most promising technologies for wearable power sources of smart electronic textiles. It is still a challenge to integrate t-TENGs into apparel without compromising aesthetic and comfort of textiles. In this work, a stretchable and comfortable t-TENG is developed by using advanced knitting technology for harvesting human motion energies, and it can be integrated into knitwear seamlessly and conveniently. Ag conductive yarns are wrapped with polytetrafluoroethylene (PTFE) and nylon66 (PA66) respectively for knitting the t-TENG. The t-TENG is fabricated by directly knitting the two yarns into a tubular structure, of which the two yarns are kept apart at the initial or relaxed state and kept in contact at stretched or compressed state. At stretching motion mode, a peak power density reaches 1484 μW/m2; at compression motion mode, it reaches 7531 μW/m2. The t-TENG is demonstrated to be comfortable, breathable and soft. Furthermore, a pair of knitted pants is prepared by using intarsia technique to integrate this t-TENG seamlessly to harvest knee-bending energy. This study suggests the potential of t-TENGs for comfortable smart garment with advanced knitting technology.

Quality inspection and prediction of the comfort of fabrics finished with functional polymers

Textile’s primary hand (HV) and total hand values (THV) are very important parameters and are used to identify the quality of clothing comfort. This paper aims to predict the HV and THV of the fabrics finished with functional polymers by applying Kawabata’s translation equations. The mechanical properties were achieved using Kawabata’s fabric evaluation system (KES-F) and the inference/interpretation was drawn. Then, HV and THV predictions were performed by applying Kawabata’s translation equations of the KN-101 and KN-301 series. The KES-F result confirmed that it is possible to observe the operative finishing effect on the mechanical properties of fabrics. The prediction results show that the total quality comfort of the functional fabrics could able be estimated by the equation developed by Kawabata; the calculated errors (~0.66) were within the range of the standard deviations (~0.78) of the samples between the predicted and ranked THV. The experimental and the calculated primary hand values showed strong correlation coefficients up to ~0.98 which is significant at 0.001 confidence levels. As actual functional fabrics with various surface properties were provided to estimate their tactile comfort via the equations, the result verified that the equation is reliable for the tactile comfort evaluation and grading.

Impact of cotton parameters on sensorial comfort of woven fabrics

Purpose For cloths having direct contact with the skin, comfort properties are a priority than the physical and mechanical properties. Innerwear clothes should induce pleasant feelings because they have a direct influence on human psychological satisfaction, health and work efficiency. The purpose of this study is to investigate the impact of cotton fiber parameters on the sensorial comfort of woven fabrics. Design/methodology/approach Four types of cotton fiber with different fineness, mean length, uniformity index, short fiber content, strength and elongation were used to develop yarns used to weave fabric samples. Kawabata evaluation system (KES) was used to analyze the fabrics’ sensorial comfort. Findings Results showed that cotton fiber parameters have a significant effect on surface friction and roughness properties. Low stress tensile, tensile resilience and tensile strain properties were affected by fiber micronaire, mean length, uniformity index, short fiber content, fiber strength and elongation. However, fabric shear, bending and compression properties were least dependent on fiber parameters. The correlation of the dependent variable and the independent variable was also statistically analyzed and reported. From the results, it was shown that cotton fiber parameters play a significant role in woven fabrics’ sensorial comfort. Originality/value The cloths that are in contact with the skin can be developed using the results of these studies to feel pleasant. This will, in turn, have a direct effect on the customer's psychological satisfaction, health and work performance.

ДОСЛІДЖЕННЯ ПОКАЗНИКІВ СЕНСОРНОГО КОМФОРТУ ТЕКСТИЛЬНИХ МАТЕРІАЛІВ ДЛЯ ЛІКАРНЯНОЇ ПОСТІЛЬНОЇ БІЛИЗНИ

Investigation of the influence of textile materials structure of different raw materials for hospital bedding on the ability to provide sensory comfort and durability. Theoretical and experimental investigations are based on the main positions of textile materials science. Sensory comfort and durability of textile fabrics were evaluated by thermal and mechanical properties. The measurement of thermophysical characteristics was carried out on the ALAMBETAinstrument, the abrasion resistance was determined on a Pilltester type 14. The strength of textile materials, the tangential resistance, the flexural rigidity and the resistance of dyeing to dry friction were determined by standardized methods. A comparative analysis of the sensory comfort of traditional textile materials for hospital bedding and fabric with bamboo fibers was carried out, which is determined by the mechanospecific sensations of skin receptors on the surface texture of the material, its roughness, stiffness, the feeling of cold or warmness when touching.Their thermophysical properties are determined, the evaluation of the feeling of cold or heat when touched is made according to the indicator "thermal absorption coefficient". By the method of an inclined plane the differences of the texture of dry and moisten studied fabrics was analyzed. The results of the wear resistance indicated that all fabric samples have high abrasion resistance; on part of the test specimens after 1200 cycles appearednap, on mixed fabric – piles.The values of strength and bending stiffness were determined and the effect of 5 washing cycles on these indices was determined. The resistance of the dye to the action of dry friction of all investigated materials is 5 points. The comparative analysis of the values of the coefficients of thermal absorption made it possible to evaluate the feeling of cold or heat when touched, which coincide with the results of the provided organoleptic determinations.It has been experimentally proven that the assortment of cotton and mixed textile fabrics used now for bedding can be supplemented with bamboo fiber materials that provide a high level of sensory comfort and durability. A new range of textile materials for bed linen has been proposed, taking into account the requirements of sensory comfort and durability.

Fabrication of fluorine-free, comfortable and wearable superhydrophobic fabrics via capacitance coupled plasma with methyl side-chain lauryl methacrylate coatings

Superhydrophobic fabrics show great potential for use in functional gear, military clothing, and other applications; however, the introduction of toxicity and degraded wearing comfort restrict their applications. In this work, superhydrophobic fabrics with excellent wearing comfort have been prepared by coating of fluorine-free lauryl methacrylate (LMA) and subsequent crosslinking via radio-frequency capacitance coupled plasma (CCP). The treated cotton fabric demonstrated excellent superhydrophobicity and excellent wearing comfort. Due to the reactions between cotton and LMA and the crosslinking of LMA under plasma treatment, the LMA-coated cotton (Cotton-g-LMA) fabric is durable enough to resist physical rubbing (1500 cycles), washing (45 cycles), ultraviolet (UV) radiation ageing (48 h) and boiling water ageing (10 h). More importantly, the plasma treatment exerted little influence on the comfort of the cotton fabrics. Additionally, this method could be applied to various cellulose fabrics, e.g., cotton, ramie and viscose materials. The facile and scalable method presented here paves the way for the design of fluorine-free, comfortable and wearable superhydrophobic fabrics.

(Invited) Sensing Human Behavior with Smart Garments

Apparel with embedded self-powered sensors can revolutionize human behavior monitoring by leveraging everyday clothing as the sensing substrate. The key is to inconspicuously integrate sensing elements and portable power sources into garments while maintaining the weight, feel, comfort, function and ruggedness of familiar clothes and fabrics. We use reactive vapor coating to transform commonly-available, mass-produced fabrics, threads or premade garments into comfortably-wearable electronic devices by directly coating them with uniform and conformal films of electronically-active conjugated polymers. By carefully choosing the repeat unit structure of the polymer coating, we access a number of fiber- or fabric-based circuit components, including resistors, depletion-mode transistors, diodes, thermistors, and pseudocapacitors. Further, vapor-deposited electronic polymer films are notably wash- and wear-stable and withstand mechanically-demanding textile manufacturing routines, enabling us to use sewing, weaving, knitting or embroidery procedures to create self-powered garment sensors. We will describe our efforts in monitoring heartrate, breathing, joint motion/flexibility, gait and sleep posture using loose-fitting garments.