Production manner of Nylon 66 filament yarn of high intensity and high coefficient of contraction

摘要

(57) Abstract The high intensity for cloth and especially air bag cloth for industry, Nylon 66 filament yarn of high coefficient of contraction, the polyamide 66LOY filament which at least possesses the relative viscosity RV of 40 the multiple stages to extend (1) at least with the heating possible combination of three extension rollers, (2, 3 and 4) last combination before the coil (4) before the coil to configurate the temperature of the extension roller between the 70 and the 160 in the manner which produces the thread which is extended (5) the tubed core (6) by retracting at once on, making use of 4 - 10% relief ratios, and this coil tensionIt configurates below 0.2cN/dtex. This polyamide 66 filament yarn, at least the strength of 60cN/tex, has had 10 - 25% coefficient of expansion and 7 - 11% (160) heat contraction factor, although air bag cloth is produced, it is suitable considerably. This thread 6kg is retracted at least on the package tube (package which in twill is wound).