Texturized spin process

The air jet textured yam process is based on overfeeding a yam into a turbulent air jet so that the excess length forms into loops that are trapped in the yam stmcture. The air flow is unheated, turbulent, and asymmetrically impinges the yam. The process includes a heat stabilization zone. Key process variables include texturing speed, air pressure, percentage overfeed, filament linear density, air flow, spin finish, and fiber modulus (100). The loops create visual and tactile aesthetics similar to false twist textured and staple spun yams. 

Airjet spinning, cotton yarn, <5 17 Airjet textured yarn process, 20 19 Airjet texturing, 19 753 Air-knife chemical finishing, 17 513 Air knife coating, 7 10-11 method summarized, 7 5t Air-laid processes, 11 179-180 Air legislation (EU), 23 121 Airless atomization, in spray coating, 7 69-70... 

Polylactic acid also has many potential uses in fibres and non-wovens. It is easily converted into a variety of fibre forms using conventional melt-spinning processes. Spunbound and meltblown non-wovens as well as monocomponent, bicomponent, continuous (flat and textured) and stable fibres are all easily produced. 

SPCs for food use. Defatted SFs were acid-leached and then neutralized before drying. With this development, SPCs were rapidly accepted as food ingredients, intermediate (between SF and SPI) in cost, protein content, and flavor. Cooking-texturizing extruders also were introduced at about this time and enabled the production of texturized SF or SPC for use as meat analogs at appreciably lower costs than those produced by the SPI spinning process. 

In the fibers produced from lyotropic spinning dopes, there still appear to be limitations on the ultimate physical properties due to higher-order morphological defects (the periodic director-orientation distortions alluded to earlier) [115]. In this context, much experimental and theoretical work remains to be done to delineate those parameters that control disclination textures and director patterns created by complex shear fields encountered in processing LCPs. As is typically the case, there are natural systems wherein these difficulties appear to have been optimally minimized spiders spin nearly defect-free fibers from a mesomorphic form of silk [116]. Consequently, efforts to analyze the spinning process - the spinner draw-down geometry and its associated shear field - used by arachnids are under way. 

For staple fibers, a slow spinning process, consisting of spin-drawing, and stuffer box-texturing, has been... 

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