Abstract: The present invention relates to a method for providing nonwoven polypropylene barrier composite fibrous structures with a surface that is both hydrophobic/alcohol repellent and durable to water/alcohol exposure. The method is based on the incorporation, into the nonwoven polypropylene barrier composite fibrous structure, of synergistic combinations of a new generation of non-telomer based fluorinated polymers with non-ionic hydrophobic waxes. When extruded with the polypropylene, these products result in a durable hydrophobic and alcohol repellent surface that is highly desirable to enhancing the utility of the nonwoven polypropylene barrier composite fibrous structures in a wide range of applications and products, ranging from medical to various construction applications.

Abstract: A process for improving the uniformity of yarn finish application on the individual filaments of a rapidly advancing synthetic continuous monofilament, bonded multi-filament, multi-filament hosiery, textile, technical and industrial yarns includes imparting a pneumatic false twist to the advancing yarn having a wet finish thereon while the yarn is under a tension allowing the rapid opening and closing of the multi-filament yarn but preventing texturing or coherency from increasing by commingling of the yarn filaments in the false twister. A nozzle has a reduced friction and can either be used as a stand-alone air bearing or to apply finish within the nozzle. A plurality of finish delivery orifices open into the chamber in a low pressure zone inside the nozzle, and wherein the exact same or slightly greater pressure that is used for the compressed air supplied to the air delivery orifices is used to actuate the finish supplied to the plurality of the finish delivery orifices.

Abstract: A process for improving the uniformity of yarn finish application on the individual filaments of a rapidly advancing synthetic continuous monofilament, bonded multi-filament, multi-filament hosiery, textile, technical and industrial yarns includes imparting a pneumatic false twist to the advancing yarn having a wet finish thereon while the yarn is under a tension allowing the rapid opening and closing of the multi-filament yarn but preventing texturing or coherency from increasing by commingling of the yarn filaments in the false twister. A nozzle has a reduced friction and can either be used as a stand-alone air bearing or to apply finish within the nozzle. A plurality of finish delivery orifices open into the chamber in a low pressure zone inside the nozzle, and wherein the exact same or slightly greater pressure that is used for the compressed air supplied to the air delivery orifices is used to actuate the finish supplied to the plurality of the finish delivery orifices.

Abstract: A process for improving the uniformity of yarn finish application on the individual filaments of a rapidly advancing synthetic continuous monofilament, bonded multi-filament, multi-filament hosiery, textile, technical and industrial yarns includes imparting a pneumatic false twist to the advancing yarn having a wet finish thereon while the yarn is under a tension allowing the rapid opening and closing of the multi-filament yarn but preventing texturing or coherency from increasing by commingling of the yarn filaments in the false twister. A nozzle has a reduced friction and can either be used as a stand-alone air bearing or to apply finish within the nozzle. A plurality of finish delivery orifices open into the chamber in a low pressure zone inside the nozzle, and wherein the exact same or slightly greater pressure that is used for the compressed air supplied to the air delivery orifices is used to actuate the finish supplied to the plurality of the finish delivery orifices.