Synthetic filaments

Crowther, R.A. et al. Synthetic filaments assembled from C-terminally truncated a-synuclein. FEES Lett. 436 309-312, 1998. 

Non-slip finishes are often used with under-constmcted fabrics to compensate for the reduced yam count and to achieve acceptable physical properties. Lining and pocketing fabrics made with smooth synthetic filaments are finished with friction enhancers combined with durable press agents, water repellents or hand modifiers to prevent seam slippage. Umbrella fabrics made from nylon or polyester filament yams are treated with friction enhancers and water repellents. The properties of any woven fabric with long floats can usually be improved with nonslip finishes. In particular, Jacquard upholstery fabrics with long floats are... 

Modified Polyacrylic thickening agent for pigment printing. Eliminates flushing and poor fine line definition on pre-resinated, badly prepared, or synthetic filament fabrics. This product overcomes most of the problems associated with the gelling of pigment blacks. 

It is an anti-picking and anti-snagging agent, particularly for knit-goods of texturized synthetic filament yarns, because it covers the yarn with an elastic, permanent polymer film. 

The disadvantages synthetic filaments, including polyesters, are their hardness, strong EP and DA. The formation of charges of a static electricity in time of treatment creates technological and operation difficulties. So, for example, the charges on a surface of... 

The textile industry views fibres as natural or synthetic filaments, such as cotton or nylon, which are capable of being spun into yarn, or simply as material made of such filaments. 

Since wind barriers are located at the cold side of the thermal insulation (in cold climates) they should combine a sufficient air and water tightness with a high vapour permeance. Materials which combine these properties and are often recommended as wind barriers are the spunbonded plastic films (also called house-wraps). These films are composed of rolled synthetic filaments (typically polypropylene or polyethylene fibres) that are welded together to form a continuous porous fabric. Measuring procedures and results of vapour transfer properties of spunbonded plastic films are reported in detail by Janssens and Hens [36]. The diffusion thicknesses of the films are a few centimetres and of the same order of magnitude as an air boundary layer. 

Pig. 10. World fiber production in 20th centry cf Cotton Usage— Log Scale. —Cellulosic filament cellulosic staple -x- synthetic filament -a- synthetic staple, cotton. 

Geng, Y. and Discher, D. (2005) Synthetic filamentous phages from self-assembling biocompatible diblock copolymers. ACS Polym. Prepr. (Div. Polym. Chem.), 46( 1), 176-177. 

Hull, D., 1974. Synthetic filament having antistatic properties. U.S. Patrait 3,803,453. 

There are different laboratory methods of determining the potential abrasiveness of a filler. The most modern unit is the Einlehner AT 2000 abrasion tester This instrument works by using a cylindrical ceramic body with specific slots and a wire made of synthetic filament Figure 2.15 compares different pap>er fillers on a global basis by this specific method. Again, because of differences in the raw material used, the processes applied and the differences in particle fineness, abrasion ranges are presented as being indicative only. 

The technology to produce synthetic filaments with the aid of electrostatic forces has been utilised for over a hundred years. This process is called electrospinning that was initially derived from electrostatic spinning and developed from the electrospraying method. This fundamental technique was observed by Rayleigh [6] in 1897, which was followed by Morton [21] and Cooley [22] that patented methods to disperse fluids using electrostatic forces. In 1914, Zeleny [23] reported the behaviour of conductive liquid droplets at the end of metallic mbes in the presence of an electrostatic force. Further developments were made by Formhals [6, 24] for the fabrication of textile yams and described in a sequence of patents from 1934 to 1944. After that, the focus shifted to developing a better... 

Monofilament fabrics are woven from extmded synthetic filaments produced in diameters from 30 jm to 2-3mm.These fabrics have become important as filter media in a broad range of industries and applications. Because of their corrosion resistance, ability to withstand vibration fatigue, uniformity and economy to use, they have replaced a number of other types of media. The chemical and food processing industries, industrial hydraulics, medical, automotive and appliance maikets are major users of monofilament fabrics. These fabrics are available in a range of polymer filaments including nylon, polyester, polypropylene and fluorocarbon materials, in aperture ratings from 5-5000 pm. 

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