Our aim is to develop a pantyhose that ﬁt without being too tight and to reduce muscle fatigue. This study was conducted with 17 Japanese women who wore two types of pantyhose with a structural diﬀerence in the panty part. When wearing pantyhose with a clothing pressure that gradually increased from 2.9 hPa in the waist to 11.0 hPa in the foot, participants reported a nearly perfect pressure sensation using a ratio scale. Thus, pantyhose with an optimized pressure sensation can be created according to the clothing pressure gradient rule. When participants wore pantyhose, EMG changes in the lower leg signiﬁcantly restricted muscle activity when compared to that in the barefoot condition, that was clariﬁed the local distribution of pressure intensity determines the intensity of muscle activity.
Medical protective clothing is an important personal protective equipment for medical staﬀs, especially in the pandemic. This research paper studied the eﬀect of structure properties (material, yarn linear density and fabric thread density) of cotton and polyester fabrics on human thermal comfort. The main methodology entails using a CAD software to simulate the thermal comfort value of the individual when they wear a medical protective clothing made of 10 plain-woven fabric types. The normal eﬀective temperature formula is used to simulate the clothing microclimate for evaluating the thermal comfort value. Three environment settings, indoor hospital conditions, outdoor environment of Manchester, UK in July and the outdoor environment of Hong Kong in July, are used in the simulation. Then analysis was conducted on the simulation results. The results indicate that yarn linear density has the biggest eﬀect on the thermal comfort value. The cotton fabric with a yarn linear density of 131 Denier and thread density of 209/inch has the best thermal comfort performance. It also meets the physical strength requirements of surgical gown son EN 13795-1:2019. The result demonstrates that the moisture management capability of the fabric that aﬀects dampness sensation of human body, is the most important ability to improve the thermal comfort value, and the inﬂuence of the yarn structure needs to be taken into consideration in the future studies.
Bamboo ﬁber extraction methods include mechanical, stem explosion, water retting, enzymatic, and chemical methods. Each extraction method has drawbacks in terms of ﬁber quality, cost, eﬃciency, and environmental impact. The combined technique of ﬁber extraction was developed by combining two or more extraction methods in order to minimize the disadvantages of separate methods. This study developed and tested alternative combined ﬁber extraction procedures for the extraction of ﬁbers from bamboo culms, with the goal of minimizing the drawbacks of separate extraction methods by using an environmentally friendly enzyme solution developed by a research group at Chengdu Textile College. The fundamental physical and mechanical properties of bamboo ﬁbers were also investigated. The bamboo species studied were Dendrocalamus membranaceus (S-1), Neosinocalamus aﬃnis (S-2), Phyllostachys heterocycle (S-3), and Phyllostachys bambusoides (S-4). Bamboo ﬁbers with 6.6-56.37 cm ﬁber length, 5.12-95.02 tex linear density, 100-1446 cN breaking strength, 1.2-146.5 cN/tex breaking tenacity, 0.26-3.43% breaking elongation, and 1.44-173.56 cN/tex breaking modulus values were extracted. The coarsest bamboo ﬁbers were extracted using a combined chemical (boiling alkali)-mechanical (rolling) technique, whereas the bamboo ﬁbers with the lowest average length, ﬁneness, and breaking modulus values were extracted using a combined enzymatic-chemical (alkali)-mechanical (rolling) technique. Bamboo ﬁbers extracted using a combined chemical (alkali at room temperature)-enzymatic (by stacking)-mechanical (rolling) technique had the lowest average breaking strength, tenacity, and elongation values but the highest average length. Bamboo ﬁbers with the highest average breaking strength, tenacity, and modulus values were extracted using a combined chemical (alkali at room temperature)-enzymatic (in solution)-mechanical (rolling) technique. The extracted bamboo ﬁbers exhibited variations in fundamental properties, as is typical of plant ﬁbers. The ﬁbers extracted using a combination of enzymatic-chemical (alkali)-mechanical (rolling) methods showed the least variation.
This paper summarizes universal fashion for the physically disabled, visually disabled, mentally disabled and the elderly. From both physical and psychological needs, it focuses on clothing materials, clothing structure and smart wearable devices. Through this review, it is concluded that there are two distinctive features of the research on universal fashion. The ﬁrst is the uneven focus on diﬀerent universal groups. The largest research has been done on universal fashion for people with physical disabilities and it is the most mature. There are fewer studies on universal fashion for people with mental disabilities, and there are large research gaps. Secondly, the focus on universal fashion for the same group of people is also uneven. There is more research on clothing patterns than on clothing materials, but the development and application of clothing materials are more important, and there are still gaps in this part. Research on universal fashion for children with autism has not focused on the urgent need to address the problem of getting lost, so the author has designed an anti-wandering vest for children with autism, and it is worthwhile to continue to study this part in depth in the future. The future direction of research into universal fashion can be divided into two areas. On the one hand, there is the strengthening of new materials (including clothing fabrics and smart ﬁbers) for universal people. On the other hand is the rational transfer of research methods from established disciplines to universal fashion research, relying on new technologies and interdisciplinary exchanges.
A common phase change material (PCM) utilized for thermal energy storage is paraﬃn wax (PW). However, the applicability and thermal energy storage eﬀectiveness of PW are constrained by its leakage and poor thermal conductivity. By using the melting-blending technique, composites of PW and expanded graphite (EG) were created, and investigations into the morphology and thermal behavior of PW/EG composites were conducted. in this study. It was found that PW was used as a coating to cover the EG structure and no leakage was detected. The ﬁnal PW/EG composites had the latent heat of fusion around 122 J/g. Additionally, the embedded PW in EG had a higher degree of crystalline growth. We propose that PW/EG composites have signiﬁcant potential in thermodynamics-related ﬁelds.
Seamless knitting technology involves knitting diverse tissue structures in the same three-dimensional knitted fabric in horizontal and vertical rows without forming seams, and the transition tissues are typically used for fabric tissues with signiﬁcant diﬀerences in properties, however, it is usually easy to be overlooked in research. Three types of three-dimensional knitted fabrics were transformed in terms of tissue structure and increasing percentage. An AMI airbag contact pressure measurement system was used to establish pressure models with three diﬀerent diameters of gum cotton cylinders to measure the interfacial pressure of the fabrics to study the eﬀect of transitional tissue on the compression performance of three-dimensional knitted fabrics under tensile load. The study found that when the fabric stretch rate was at 0%, 25%, 50%, and 75%, the fabric stretch rate and pressure were positively correlated; the fabric tissue composition and number of components had a signiﬁcant eﬀect on the pressure, and the increase in the number of components caused the pressure at the tissue junction to increase signiﬁcantly. This study aims to lay the groundwork for winter knitted sportswear pattern development and compression performance optimization.