Systems and methods of electrostatically spraying a treatment solution are disclosed that include electrostatically charging, by a cartridge assembled with a handheld portable electrostatic device, a treatment solution. The handheld portable electrostatic device can include a housing, the cartridge removably disposed in the housing. The cartridge can include a cartridge housing, at least one electrode to electrostatically charge and ionize molecules of the treatment solution of the cartridge, and a nozzle positioned at a distal end of the cartridge housing, the nozzle of the cartridge being configured to deliver the electrostatically charged treatment solution and configured to be in fluid communication with an air supply tube in fluid communication with a pump in the housing.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibres and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising meltblown polyvinyl alcohol fibers, methods of making meltblown polyvinyl alcohol fibres and products incorporating such fibers.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibres and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising meltblown polyvinyl alcohol fibers, methods of making meltblown polyvinyl alcohol fibres and products incorporating such fibers.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising non-woven polyvinyl alcohol fibers, methods of making non-woven polyvinyl alcohol fibers and products incorporating such fibers.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising spunbond polyvinyl alcohol fibers, methods of making spunbond polyvinyl alcohol fibers and products incorporating such fibers.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising extruded polyvinyl alcohol fibers, methods of making extruded polyvinyl alcohol fibers and products incorporating such fibers.

In one aspect, the disclosure relates to multi-material fibers capable of distributedly measuring temperature and pressure in which the methods comprise a thermal drawing step, and the methods of fabricating the disclosed fibers. The fibers can be utilized in methods of temperature and pressure mapping or sensing comprising electrical reflectometry for interrogation. Further disclosed are devices comprising a disclosed fiber with the multi-point detection capability with simple one-end connection. Also disclosed are articles, e.g., smart clothing, wound dressing, robotic skin and other industrial products, comprising a disclosed fiber or a fabric comprising a disclosed fiber. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

In one aspect, the disclosure relates to multi-material fibers capable of distributedly measuring temperature and pressure in which the methods comprise a thermal drawing step, and the methods of fabricating the disclosed fibers. The fibers can be utilized in methods of temperature and pressure mapping or sensing comprising electrical reflectometry for interrogation. Further disclosed are devices comprising a disclosed fiber with the multi-point detection capability with simple one-end connection. Also disclosed are articles, e.g., smart clothing, wound dressing, robotic skin and other industrial products, comprising a disclosed fiber or a fabric comprising a disclosed fiber. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

A fiber for artificial hair, the fiber comprising a synthetic resin and a microparticle, wherein a content difference |C.sub.1-C.sub.2| between a content C.sub.1 of a microparticle of smaller than 2 ?m in particle size, and a content C.sub.2 of a microparticle of 2 ?m or larger and smaller than 5 ?m in particle size is 70% by mass or less based on the total amount of the microparticle, and the content of a microparticle of 5 ?m or larger in particle size, C.sub.3, is less than 25% by mass based on the total amount of the microparticle.

A fiber for artificial hair, the fiber comprising a synthetic resin and a microparticle, wherein a content difference |C.sub.1-C.sub.2| between a content C.sub.1 of a microparticle of smaller than 2 ?m in particle size, and a content C.sub.2 of a microparticle of 2 ?m or larger and smaller than 5 ?m in particle size is 70% by mass or less based on the total amount of the microparticle, and the content of a microparticle of 5 ?m or larger in particle size, C.sub.3, is less than 25% by mass based on the total amount of the microparticle.