Bio-functional textiles

2011 ◽  
pp. 336-359
Author(s):  
S. Liu ◽  
G. Sun
Keyword(s):  
Functional Textiles

A New Geometric Model of Laid-in Weft-Knitted Fabrics

2021 ◽  
pp. 004051752199276
Author(s):  
Ki Wai Fong ◽  
Si Qing Li ◽  
Rong Liu
Keyword(s):  
Cost Estimation ◽  
Geometric Model ◽  
Three Dimensional ◽  
Wearable Electronics ◽  
Material Consumption ◽  
Knitted Fabrics ◽  
Functional Textiles ◽  
Loop Pattern ◽  
Spatial Configurations ◽  
Consumption Prediction

Inlay yarn and laid-in structures are important technical knitting elements that have been increasingly applied in the structural design of functional textiles in industrial, medical, and wearable electronics fields. However, there is no currently established geometric model to numerically analyze their spatial morphologies and structural properties. This study presents a new geometric model and numerical analysis approach to characterize spatial configurations of inlay yarn and ground yarn in a three-dimensional scenario for laid-in weft-knitted fabrics. Loop lengths of the inlay and ground yarn materials were calculated and analyzed under different contact and deformation conditions to estimate material consumption in this complex interlooping layout. Series of laid-in weft-knitted fabrics made of different combinations of ground and inlay yarns were fabricated with the 1 × 1 laid-in loop pattern and tested for the model validation. The comparisons between the experimental and calculated results indicated that the newly developed geometric model favorably agreed with the experimental measurements regarding the ground loop lengths and inlay loop lengths applied in the laid-in weft-knitted structures. The results indicated the applicability of the developed geometric model of laid-in weft-knitted fabrics with similar structural patterns in practical use. The output of this study provides a theoretical and practical reference for structural and physical properties analysis, material consumption prediction, even cost estimation of laid-in weft-knitted fabrics.

scholarly journals Assessment antiviral activity of functional textiles: pioneering service offered by Bio- Manguinhos to partners

2021 ◽  
Author(s):  
Adriana Soares ◽  
Caio Denani ◽  
Ingrid Horbach ◽  
Brenda Dias ◽  
Stephanie Silva ◽  
...  
Keyword(s):  
Antiviral Activity ◽  
Functional Textiles

scholarly journals Shield Effect Of Functional Interlining Fabric

2015 ◽  
Vol 15 (2) ◽  
pp. 93-98 ◽  
Author(s):  
Bosiljka Šaravanja ◽  
Krešimir Malarić ◽  
Tanja Pušić ◽  
Darko Ujević
Keyword(s):  
Electromagnetic Interference ◽  
Electronic Devices ◽  
Scanning Electron Microscopy Micrographs ◽  
Dry Cleaning ◽  
Protective Properties ◽  
Protection Efficiency ◽  
Degree Of Protection ◽  
Functional Textiles ◽  
Before And After ◽  
Cleaning Treatment

AbstractElectromagnetic interference (EMI) have become very serious in a variety of different electronic equipments, such as personal computers (frequency at several GHz), mobile devices (0.9 – 2.4 GHz) and similar. This imposes the need for setting boundaries for EM emission of electric and electronic devices in order to minimize the possibility of interference with radio and wireless communications. Functional textiles can offer protective properties against EM radiation. The aim of this study is to investigate the degree of protection against EM radiation provided by polyamide copper-coated interlining fabric before and after dry cleaning treatment. EM protection efficiency of the interlining functional fabric is explored on both sides at the frequencies of 0.9; 1.8; 2.1 and 2.4 GHz. The results obtained have shown that the interlining fabric has good protective properties against EM radiation, but after dry cleaning, treatment reduction is observed. Scanning electron microscopy micrographs of the interlining surface confirms shield effect decline due to degradation and firing of the copper layers during the process of dry cleaning.

In vitro screening for anti-microbial activity of chitosans and chitooligosaccharides, aiming at potential uses in functional textiles

2010 ◽  
Vol 20 (2) ◽  
pp. 311-318 ◽  
Author(s):  
João C Fernandes ◽  
Freni K Tavaria ◽  
Susana C. Fonseca ◽  
Óscar S Ramos ◽  
Manuela E. Pintado ◽  
...  
Keyword(s):  
Microbial Activity ◽  
In Vitro Screening ◽  
Functional Textiles

Facile method for tent fabrics with eco-friendly/durable properties using waterborne polyurethane/lignin: Preparation and evaluation

2020 ◽  
pp. 152808372093188 ◽  
Author(s):  
Yue Zhang ◽  
Ting-Ting Li ◽  
Ching-Wen Lou ◽  
Jia-Horng Lin
Keyword(s):  
Morphological Structure ◽  
Waterborne Polyurethane ◽  
Accelerated Weathering ◽  
Hydrophobic Property ◽  
Strength Performance ◽  
Functional Textiles ◽  
Aging Property ◽  
Breathable Fabric ◽  
Coated Fabrics ◽  
Tearing Strength

In this paper, a novel facile strategy is reported for fabricating an environment friendly, aging-resistant, and waterproof-breathable fabric using a “pad-knife” coating technique and waterborne polyurethane (WPU) containing isophorone diisocyanate (IPDI) and lignin as an antioxidant agent. Morphology, hydrophobic property, accelerated weathering aging property and artificial degradation performance as well as water vapor transmission and tensile property are characterized. Results show that, IPDI can effectively prevent PU discoloration. Lignin amount affects the morphological structure, tearing strength, WVTR and hydrostatic pressure capability of coated fabrics. Moreover, a 2% lignin addition provides fabrics with enhanced waterproof-breathable properties and tearing strength performance compared with pure WPU coated fabrics after accelerated weathering exposure. The facile coating technology can be applied to protective and functional textiles for military and civil polyester tents.

scholarly journals Application of Natural Flavonoids to Impart Antioxidant and Antibacterial Activities to Polyamide Fiber for Health Care Applications

Antioxidants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 301 ◽  
Author(s):  
Ya-Dong Li ◽  
Jin-Ping Guan ◽  
Ren-Cheng Tang ◽  
Yi-Fan Qiao
Keyword(s):  
Health Care ◽  
Antibacterial Properties ◽  
Antibacterial Activities ◽  
Order Kinetic ◽  
Adsorption Model ◽  
Chemical Structures ◽  
Functional Textiles ◽  
Washing Durability ◽  
Polyamide Fiber ◽  
Adsorption Capability

Polyamide fiber has the requirements for antioxidant and antibacterial properties when applied to produce functional textiles for heath care purposes. In this work, three natural flavonoids (baicalin, quercetin, and rutin) were used to simultaneously impart antioxidant and antibacterial functions to polyamide fiber using an adsorption technology. The relations of the chemical structures of flavonoids with their adsorption capability, adsorption mechanisms, and antioxidant and antibacterial activities were discussed. The Langmuir–Nernst adsorption model fitted the adsorption isotherms of the three flavonoids well. The adsorption kinetics of the three flavonoids conformed to the pseudo second-order kinetic model. Quercetin exhibited the highest affinity and adsorption capability, and imparted the highest antioxidant and antibacterial activities to polyamide fiber; and moreover, its antioxidant and antibacterial functions had good washing durability. This study demonstrates that the treatment using natural flavonoids is an effective way to exhance the health care functions of polyamide fiber.

Release of Side-Chain Fluorinated Polymer-Containing Microplastic Fibers from Functional Textiles During Washing and First Estimates of Perfluoroalkyl Acid Emissions

2019 ◽  
Vol 53 (24) ◽  
pp. 14329-14338 ◽  
Author(s):  
Steffen Schellenberger ◽  
Christina Jönsson ◽  
Pelle Mellin ◽  
Oscar A. Levenstam ◽  
Ioannis Liagkouridis ◽  
...  
Keyword(s):  
Side Chain ◽  
Fluorinated Polymer ◽  
Functional Textiles ◽  
Perfluoroalkyl Acid
Sign in / Sign up

Export Citation Format

Share Document