The present disclosure is directed to an enzyme delivery system having a plurality of solution spun fibers. The solution spun fibers made from a water soluble polymeric resin and an enzyme. The enzyme is encapsulated in the solution spun fibers and is present in an amount from 0.1 to 40 wt % based on total weight of the solution spun fibers. The percent of active enzyme after encapsulation is from 50 to 100%.

The present disclosure is directed to a fibrous construct having an ester substrate, a first web comprising a plurality of first water soluble fibers and a perhydrolase and a second web comprising a plurality of second water soluble fibers and an oxidizing agent. The perhydrolase is encapsulated in the first water soluble fibers and is present in an amount from 0.1 to 40 wt % based on the total weight of the first web. The oxidizing agent is encapsulated in the second water soluble fibers and the first water soluble fibers and the second water soluble fibers are solution spun water soluble fibers. In an embodiment of the present disclosure, hydrogen peroxide is the oxidizing agent and is complexed on to at least a portion of the second web where the second web comprise a plurality of polyvinyl pyrrolidone fibers or copolymers thereof.

The present disclosure is directed to a fibrous construct having an ester substrate, a first web comprising a plurality of first water soluble fibers and a perhydrolase and a second web comprising a plurality of second water soluble fibers and an oxidizing agent. The perhydrolase is encapsulated in the first water soluble fibers and is present in an amount from 0.1 to 40 wt % based on the total weight of the first web. The oxidizing agent is encapsulated in the second water soluble fibers and the first water soluble fibers and the second water soluble fibers are solution spun water soluble fibers. In an embodiment of the present disclosure, hydrogen peroxide is the oxidizing agent and is complexed on to at least a portion of the second web where the second web comprise a plurality of polyvinyl pyrrolidone fibers or copolymers thereof.

The present disclosure is to provide a method for producing polyurethane (PU) nanofibers with significantly improved hydrophilicity by producing water-soluble polymer/PU blend nanofiber by coaxial-electrospinning water-soluble polymer and hydrophobic PU, and, subsequently, dissolving and removing the water-soluble polymer from the blend nanofiber in water.

A method for preparing an anti-bacterial and anti-ultraviolet multifunctional chemical fiber includes: dissolving several soluble metal salts and a polymer complexing dispersant into water to prepare an aqueous solution; adding into a polymer monomer; reacting under microwave or hydrothermal action to obtain a polymer monomer containing multifunctional nano oxides; adding the polymer monomer with other monomer, catalyst, initiator, stabilizer, and the like into a polymerization reactor; and carrying out esterification, polycondensation or copolymerization to obtain a polymer melt, and carrying out spinning or ribbon casting and granule cutting to obtain an anti-bacterial and anti-ultraviolet multifunctional chemical fiber or masterbatch chips. By generating nano metal oxides in the monomer in situ before the polymerization reaction, small particle sizes and dispersibility of the nano metal oxide are ensured; the chemical fiber has efficient, durable antibacterial and anti-ultraviolet functions and is free of metal ion precipitation.

A method for preparing an anti-bacterial and anti-ultraviolet multifunctional chemical fiber includes: dissolving several soluble metal salts and a polymer complexing dispersant into water to prepare an aqueous solution; adding into a polymer monomer; reacting under microwave or hydrothermal action to obtain a polymer monomer containing multifunctional nano oxides; adding the polymer monomer with other monomer, catalyst, initiator, stabilizer, and the like into a polymerization reactor; and carrying out esterification, polycondensation or copolymerization to obtain a polymer melt, and carrying out spinning or ribbon casting and granule cutting to obtain an anti-bacterial and anti-ultraviolet multifunctional chemical fiber or masterbatch chips. By generating nano metal oxides in the monomer in situ before the polymerization reaction, small particle sizes and dispersibility of the nano metal oxide are ensured; the chemical fiber has efficient, durable antibacterial and anti-ultraviolet functions and is free of metal ion precipitation.

Fibrous elements, such as filaments and/or fibers, and more particularly to fibrous elements that contain a fast wetting surfactant, fibrous structures made therefrom, and methods for making same are provided.

Fibrous elements, such as filaments and/or fibers, and more particularly to fibrous elements that contain a fast wetting surfactant, fibrous structures made therefrom, and methods for making same are provided.

The present invention is directed to an article of manufacture, which can be a fiber and or a film. In one aspect, the fiber or the film comprises a polyvinyl alcohol (PVOH) and an inorganic filler comprising particles having an average diameter of less than about 20 micrometers. The PVOH has a degree of hydrolysis of greater than about 95% and is present in a range between about 20 wt. % and about 99 wt. % based on the total fiber weight. Methods of making the fibers and films are also disclosed.

The present invention is directed to an article of manufacture, which can be a fiber and or a film. In one aspect, the fiber or the film comprises a polyvinyl alcohol (PVOH) and an inorganic filler comprising particles having an average diameter of less than about 20 micrometers. The PVOH has a degree of hydrolysis of greater than about 95% and is present in a range between about 20 wt. % and about 99 wt. % based on the total fiber weight. Methods of making the fibers and films are also disclosed.