China
Africa
Explore chapters and articles related to this topic
Electron Beam Machining (EBM)
Published in Gary F. Benedict, Nontraditional Manufacturing Processes, 2017
A rather surprising use of electron beam perforation involves the clothing industry. A percentage of the shoes made today are fabricated from an artificial leather consisting of a plastic-coated textile substrate. This artificial leather is not permeable to moisture and air, thus making its level of comfort poor. A more comfortable breathing material can be produced by electron beam perforation of the plastic surface. Thus treated, the material is acceptable for use in shoes, clothing, and upholstery. Electron beam machining drills these materials with 0.12-mm (0.0047-in.) diameter holes at a rate of 5000 holes/sec (Steigerwald, 1978).
Nontraditional Manufacturing Processes
Published in Leo Alting, Geoffrey Boothroyd, Manufacturing Engineering Processes, 2020
Leo Alting, Geoffrey Boothroyd
A rather new use of electron beam perforation involves the shoe manufacturing industry. A percentage of shoes made today are fabricated from artificial leather consisting of a plastic-coated textile substrate. This artificial leather is not permeable to moisture and air, which makes its level of comfort poor. Partial perforating the material by EDM makes it acceptable for use in shoes. A similar method is used for material for rainwear, drilling these materials with 0.05-mmdiameter holes at a rate of 5000 holes/s.
Pedagogical guidance to educators in teaching sneaker design: the effectiveness of sketchbook practice
Published in International Journal of Fashion Design, Technology and Education, 2021
Changhyun (Lyon) Nam, Eulanda A. Sanders
The design and development of footwear can either strengthen a healthy foot or deteriorate it. Not only must footwear designers consider the promotion of a healthy and functional foot, but they also must fulfil consumers’ demands for style of shoes and fashion. Footwear is a fashion item, and footwear markets become increasingly varied and swiftly change based on current fast fashion (Bhardwaj & Fairhurst, 2010; Srinivas, 2015). Due to fashion trends, the useful lifespan of shoes is relatively short and is steadily decreasing. To reduce costs, furthermore, manufacturers often use cheap and harmful materials (e.g. artificial leather, plastic, xylene, and synthetic/inorganic fabric), while many shoes are thrown away in landfills (Woodford, 2016). More than 20 billion shoes are manufactured a year in the United States, and over 300 million pairs of shoes are discarded into landfills (Colt, 2016). However, because of increasing sustainability awareness from various stakeholders, the footwear industry has been actively developing and incorporating eco-friendly materials into their new product design and development.
Development of an optimal scheme for controlling the ultrasonic welding process of artificial leather
Published in Welding International, 2019
S. S. Volkov, V. M. Nerovny, G. A. Bigus
The experiments were carried out on samples of AIK-S artificial leather and 0.8 mm thick polyvinyl chloride sheet (substrate) for two schemes of laying the samples ‘coating to coating’ and ‘coating to polyvinyl chloride substrate’ with simultaneous recording of the temperature in the polymer coating layer of artificial leather at using thermocouples of the chromel-copel group with a diameter of 0.1 mm. Ultrasonic welding was carried out on an ultrasonic welding machine USSh-19, developed at the Department of Welding and Diagnostic Technologies of the Moscow State Technical University named after N.E.Bauman with a PMS1M magnetostrictive transducer with a power of 1.5 kW and a knife waveguide made of VT5 titanium alloy. The width of the welded seam is equal to the width of the working part of the waveguide 6 mm. Welding, static pressure is adjustable by spring. Welding at constant welding pressure allows using the USSh-19 machine to maintain a stable thickness of the welded seam with fluctuations in the initial material thickness up to 25%.
Fabrication of highly electrical synthetic leather with polyurethane/poly(3,4-ethylene dioxythiophene)/poly(styrene sulfonate)
Published in The Journal of The Textile Institute, 2018
Eun Joo Shin, Sung Soo Han, Soon Mo Choi
In the present study, artificial leather (napping fabric with short fur) with polyethylene terephthalate (PET) fabric and water-borne polyurethane (WPU) was manufactured, and conductivity was imparted in artificial leather using a PEDOT/PSS water dispersion via a silk screen and pad-dry-cure method. Several different solvents, including ethylene glycol (EG), dimethylsulfoxide (DMSO), and EG/DMSO co-solvents were used to increase the conductivity of artificial leather. This study examined how a combination of solvent addition affects the PEDOT/PSS conductivity of artificial leather as well as the difference in the effects of the silk screen and pad-dry-cure methods. In addition, the resilience of the PEDOT/PSS conductivity after the common use of artificial leather was investigated by abrasion and tension cycle tests.