نتایج جستجو برای: synthetic textile fibers

تعداد نتایج: 221878  

2016
Diana Santos Morais Rui Miranda Guedes Maria Ascensão Lopes

The large surface area and ability to retain moisture of textile structures enable microorganisms' growth, which causes a range of undesirable effects, not only on the textile itself, but also on the user. Due to the public health awareness of the pathogenic effects on personal hygiene and associated health risks, over the last few years, intensive research has been promoted in order to minimiz...

2011
Azam Jeihanipour Karin Øyaas

In the world today, the need for sustainable processes is increasing. The work of the present thesis has been focused on conversion of the cellulosic part of waste textiles into biogas and ethanol, and its challenges. In 2009, the global annual fiber consumption exceeded 70 Mt, of which around 40% consisted of cellulosic material. This huge amount of fibers is processed into apparel, home texti...

Journal: :Journal of occupational health 2004
Lin Fritschi Ramzan Lakhani Louise Nadon

The textile manufacturing industry consists of a wide range of occupations including spinning, weaving, knitting, dyeing and finishing of natural and synthetic fibres to produce fabrics, yarns and carpets. The range of exposures in the industry includes textile related dusts, chemicals used in making synthetic textiles, sizing agents, oil mist, dyes, solvents, crease-resistance agents, flame re...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی نساجی 1382

عملیات تکسچرایزینگ یک فرآیند حرارتی- مکانیکی است که در آن بلورها ذوب شده ، در زنجیرهای مولکولی تغییر شکل ایجاد شده و سپس در این حالت جدید الیاف سرد می شوند بالا بودن بلورینگی ذاتی الیاف پلی پروپیلن و قابلیت هدایت حرارتی پایین آن سبب می شود به گرمای ورودی بالاتری در عملیات تکسچرایزینگ نیاز باشد و همچنین زمان گرمادهی و سرد شدن افزایش می یابد بنابراین لازم است تا بلورینگی نخ ورودی را به واحد تکسچر...

1997
P. I. Richard V. Gregory

The development of a conductive fiber produced from an inherently conductive polymer (ICP) polyaniline (PANI) was accomplished during this the third year of our National Textile Center funding. This goal accomplished the stated mission of the research effort. The fiber produced has tensile properties approaching that of nylon 6 and a conductivity of around 350 S/cm. This achievement has led to ...

2003
Jinhua Yang Katsushi Ikeuchi

We proposed a physics-based rendering method for reflection of woven textiles. Both reflection properties of fibers and yarns are taken into account, which are the primary factors affecting visual appearance of cloths. The reflection from fiber surfaces is analyzed using Kirchhoff diffraction theory, assuming a statistical surface. Yarns are usually consisted of a group of fibers and they are s...

Virtually all fibers exhibit some dimensional and structural irregularities. These include the conventional textile fibers, the high-performance brittle fibers and even the newly developed nano-fibers. In recent years, we have systematically examined the effect of fiber dimensional irregularities on the mechanical behavior of the irregular fibers. This paper extends our research to include the ...

2007
Rie NAKAMURA Hiroki NOMURA Koichi GODA Junji OHGI

INTRODUCTION Today, development of materials technology using biomass is expected for creation of a sustainable society. Especially, the composite consisting of plant-based natural fibers and biodegradable resin, so-called the fully-green composites, is much expected for practical use. So far, we made textile green composites using biodegradable resin and plain woven ramie fabric and explored t...

2008
Kellyn S. Betts

Although house dust is known to be a predominant source of exposure to PBDEs, it's not yet clear which part of the dust these chemicals bind to. The dust pictured above contains pet hair (rust brown), pollen (yellow), plant fibers (green), dead skin cells (light to medium brown), dirt and minerals (orange), textile fibers (blue), and spider silk (pink).

2015
Pedro J. Rivero Aitor Urrutia Javier Goicoechea Francisco J. Arregui

Nanoparticles are very interesting because of their surface properties, different from bulk materials. Such properties make possible to endow ordinary products with new functionalities. Their relatively low cost with respect to other nano-additives make them a promising choice for industrial mass-production systems. Nanoparticles of different kind of materials such as silver, titania, and zinc ...

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