Revista de ciencia e ingeniería textil

For e-textile applications, conductive silk fibers (CSFs) are constructed with carbon nanotubes and silk fiber. We incorporate the complementary advantages of both components into a single hybrid fiber system by employing a scalable dip-coating strategy. Silk fibers provide mechanical toughness and strength, and carbon nanotubes provide functions like water resistance, solvent resistance, and thermal and electrical conductivity in such a system. CSFs can be woven into electronic textiles using automated fabric machines due to their mechanical and functional advantages. The resulting e-textiles can withstand washing with high-intensity or automated ultrasonics. These CSF e-textiles have potential applications in wearable devices, human augmentation, healthcare monitoring, and human-machine interfaces. They can be used as wearable sensing platforms to detect and monitor surrounding physical and chemical signals like force, temperature, and solvents.

E-textiles are interesting in a lot of different areas, like real-time healthcare monitoring and wearable electronics. Techniques for designing and fabricating e-textiles to meet the various requirements remain significant obstacles. Natural silk fibers, an ancient and unparalleled textile fiber, may be considered as a solution to these problems. However, natural silks that conduct electricity have not yet been produced due to processing difficulties. In this paper, we present a method for making conductive silk fibers (CSFs) using a scalable dip coating. A custom-made carbon nanotube (CNT) paint was used to functionalize natural silk fibers. This paint selectively scratches the surface of the silk fibers without destroying the fibers' internal structure. The CSFs maintained the mechanical performance, super hydrophobicity, solvent resistance, and thermal sensitivity of the silks and CNTs. The CSFs can be consequently woven into textures, bringing about materials delicate to encompassing actual boosts, including force, strain, temperature, and solvents.

Two of the most pressing environmental issues on a global scale are food waste and fashion industry pollution. The feasibility of producing an alternative textile material with leather-like properties from fungal biomass cultivated on bread waste was investigated in order to alleviate the issues posed by food waste and contribute to sustainable fashion. In a submerged cultivation method, the filamentous fungus Rhizopus delemar was successfully grown on waste bread, and the fungal biomass was treated with chestnut wood's vegetable tannin. OM, SEM, and AFM showed how the tannin treatment affected the hyphae, while NMR and FTIR demonstrated that tannin interacts with fungal biomass. TGA analysis was used to measure thermal stability. Sheets of hyphae were prepared using the wet-laid method commonly used for papermaking. As a posttreatment, glycerol and/or a biobased binder were applied to some of the sheets. In total, three of the manufactured materials had characteristics similar to those of genuine leather. After being treated with glycerol alone, sheets made from untreated biomass had a tensile strength of 7.7 MPa and an elongation at break of 5%. Though sheets from untreated biomass and tannin treated biomass with both glycerol and fastener medicines prompted rigidities of 7.1 MPa and 6.9 MPa, and the stretching at break of 12% and 17%, individually. After the binder treatment, the sheet's increased hydrophobicity helped keep the sheet's absorbed glycerol inside, preserving its flexibility when moist. These results show that fungal sheets made from bread waste have a lot of potential as eco-friendly materials with leather-like properties.

Fibers are the main raw materials in the textile industry. Now-a-days various types of fibers are available around the world but all fibers are not textile fibers. Because for being textile fibers, the fibers must have some particular physical and chemical properties. The length of natural fiber plays an important role both in the spinning process and product quality. In this work, it is highlighted about a long staple natural fiber which is called jute fiber. In the 19^th century, jute fiber was called the Golden Fiber of Bangladesh. After that this fiber lost its name and fame for the cause of our negligence and lack of knowledge. It is very difficult to know about jute because a few people were working on it. Though it’s a long fiber but there are some problems with its fixed length because this fiber consists of a large number of ultimate cells whose length is 1.5 to 4 millimeters and these cells are attached by lignin which is known as natural cement. A long fiber which is 5 to 10 feet forms after attaching these ultimate cells. During the retting period some of the lignin layers break down and long fiber length of fibers becomes shorter. Another important thing is these fibers have a mesh structure for this reason it’s difficult to identify the actual length of the fibers. That’s why fibers obtained after retting are passed through jute carding machines. The main function of the jute carding machine is to split up and break down the mesh structure. After carding, it’s quite easy to measure the length of splitted jute fibers. There are not any suit-able machines for measuring the length of jute fibers. Previously people use the scale for measuring the jute fibers' length manually, through this it is so difficult to measure the length of the long fibers accurately. Here an instrument has been designed with Arduino UNO, Ultrasonic distance sensor, Image-j software, C-programming and fabricated for measuring the fibers' length easily and accurately as well as this instrument can measure the number of fibers in that particular length. By using this instrument anyone can easily measure the length of the fibers and the number of fibers within a short possible time efficiently.

Objective: To evaluate changes in transcutaneous oxygen (TcPO₂) and peripheral blood flow (laser Doppler, LD) in the hands and feet of diabetic patients with vascular impairment when Celliant gloves and stockings are worn.

Methods: We enrolled 20 subjects with a history of diabetes and vascular impairment to be monitored by TcPO₂ and LD in the hand and foot at 10-minute intervals over the course of a 1hr treatment with Celliant or placebo gloves and stockings that were applied at the same time but in different sequences with a 1hr interval. The tester and subject were blinded to the type of study garment.

Results: There were no statistically differences between measurements due to the small sample size and variability in the data. However there was a trend for increasing TcPO₂ and LD particularly in the foot when comparing placebo garments (first) and Celliant garments (second) at time periods of 50 and 60 minutes.

Conclusion: The 1hr wearing time may have been insufficient for the full effect to be observed, and the 1hr interval between the different garments may be too short to washout the Celliant effect, when the placebo garments were applied second. Further studies are necessary to obtain statistically significant results, and to determine whether Celliant garments could prevent diabetic foot complications.