A method of forming an active agent infused linear material includes passing a substantially linear polymeric substrate through a linear substrate infusion chamber in a first direction, flowing a liquid infusion solution through the linear substrate infusion chamber in a second direction, and contacting the linear substrate with the liquid infusion solution at an infusion temperature and for an infusion time effective to infuse the one or more active molecules into or onto a surface of the linear substrate, thereby forming an active agent infused linear material. The liquid infusion solution includes one or more active molecules. The second direction is substantially opposite or substantially parallel to the first direction. A linear substrate infusion system and a polymeric linear substrate are also disclosed.

Washing system (1) suitable for continuous processing, for the pre-treatment of keratinaceous material, preferably feathers, hair or wool. The washing system (1) comprises an infeed device (2) for feeding the keratinaceous material to the washing system (1) and a washing space (3) for washing the keratinaceous material with an aqueous washing liquid. A washing liquid system for supplying and extracting the washing liquid to and from the washing space (3) is comprised in the washing system (1). The washing space (3) comprises a sinking zone wherein material with a higher density than the washing fiquid sinks below the keratinaccous material. An extracting system (8) is placed at the bottom of the sinking zone (6) for extracting the material with a higher density than the washing liquid. Furthermore, at least one washing structure (4) that sloshes the washing liquid and/or causes turbulence in the washing liquid is present in the washing space (3). Finally, an outfeed device (9) is provided for extracting the keratinaceous material from the washing system (1).

Washing system (1) suitable for continuous processing, for the pre-treatment of keratinaceous material, preferably feathers, hair or wool. The washing system (1) comprises an infeed device (2) for feeding the keratinaceous material to the washing system (1) and a washing space (3) for washing the keratinaceous material with an aqueous washing liquid. A washing liquid system for supplying and extracting the washing liquid to and from the washing space (3) is comprised in the washing system (1). The washing space (3) comprises a sinking zone wherein material with a higher density than the washing fiquid sinks below the keratinaccous material. An extracting system (8) is placed at the bottom of the sinking zone (6) for extracting the material with a higher density than the washing liquid. Furthermore, at least one washing structure (4) that sloshes the washing liquid and/or causes turbulence in the washing liquid is present in the washing space (3). Finally, an outfeed device (9) is provided for extracting the keratinaceous material from the washing system (1).

The invention is related to a continuous system for coating carbon fibre materials and a device developed to carry out the method. The coating of carbon fibre with both an electrochemical method following the polymerization (polyethylenedioxythiophene, polypyrrole, polythiophene, polyaniline and derivates thereof) of the monomer of conductive polymer and coating with an insulating sizing material (thickening material) is carried out in a single step.

The invention is related to a continuous system for coating carbon fibre materials and a device developed to carry out the method. The coating of carbon fibre with both an electrochemical method following the polymerization (polyethylenedioxythiophene, polypyrrole, polythiophene, polyaniline and derivates thereof) of the monomer of conductive polymer and coating with an insulating sizing material (thickening material) is carried out in a single step.

A method for preparing an elastic conductive fiber, which includes: immersing an elastic polyurethane fiber in an alkaline solution containing a base selected from the group consisting of triethylamine and sodium hydroxide, so as to obtain an alkaline-treated elastic polyurethane fiber; immersing the alkaline-treated elastic polyurethane fiber in a first treating composition containing a metal trifluoroacetate and an alcohol solvent, so as to obtain a processed elastic polyurethane fiber containing the metal trifluoroacetate; and immersing the processed elastic polyurethane fiber in a second treating composition containing water and a reducing agent, so that a metal particle is formed on a surface of the processed elastic polyurethane fiber by reducing metallic ions in the metal trifluoroacetate.

A method for preparing an elastic conductive fiber, which includes: immersing an elastic polyurethane fiber in an alkaline solution containing a base selected from the group consisting of triethylamine and sodium hydroxide, so as to obtain an alkaline-treated elastic polyurethane fiber; immersing the alkaline-treated elastic polyurethane fiber in a first treating composition containing a metal trifluoroacetate and an alcohol solvent, so as to obtain a processed elastic polyurethane fiber containing the metal trifluoroacetate; and immersing the processed elastic polyurethane fiber in a second treating composition containing water and a reducing agent, so that a metal particle is formed on a surface of the processed elastic polyurethane fiber by reducing metallic ions in the metal trifluoroacetate.

Methods of treating fibers comprising a polymer including at least one of a vinyl acetate moiety or a vinyl alcohol moiety, and resulting fibers or the products comprising the resulting fibers are disclosed. In an example embodiment, a fiber having a surface region and an interior region, includes a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety chemically modified with a modification agent. The fiber has a transverse cross-section including the interior region comprising the polymer having a first degree of modification and the surface region comprising the polymer having a second degree of modification greater than the first degree of modification.

Methods of treating fibers comprising a polymer including at least one of a vinyl acetate moiety or a vinyl alcohol moiety, and resulting fibers or the products comprising the resulting fibers are disclosed. In an example embodiment, a fiber having a surface region and an interior region, includes a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety chemically modified with a modification agent. The fiber has a transverse cross-section including the interior region comprising the polymer having a first degree of modification and the surface region comprising the polymer having a second degree of modification greater than the first degree of modification.

Disclosed is a continuous carbon fiber/thermoplastic resin fiber composite yarn and a method for manufacturing the same, wherein the carbon fiber composite yarn provides excellent mechanical properties, is light in weight, moldable, and has excellent impregnating ability. In particular, the composite yarn is provided with these superior properties by including a continuous carbon fiber having excellent mechanical properties, a thermoplastic resin fiber, and the like, and by using a false twist processing machine or a solution bath, and the like in order to manufacture the composite yarn.