Sustained release fibers

Abstract

The present disclosure provides, in certain embodiments, a fiber comprising a core comprising a first polymer and at least active ingredient, wherein the at least one active ingredient is encapsulatedby a second polymer; and at least one polymer layer at least partially encapsulating the core. The fiber disclosed herein may be capable of releasing the at least one active ingredient for at least three months. The active ingredient disclosed herein may be a dust mite inhibitor, and may be chosen from a fragrance, an antimicrobial, and a pesticide. Additionally, the fiber disclosed herein may beinserted into a yarn or combine with other textile materials during bulk fiber production or yarn processing, i.e., twisting and heat setting, for use in carpets, bedding, and other home textiles.

Description

field of invention [0001] The present disclosure relates to fibers comprising at least one slow-release active component, and the use of such fibers for the production of articles such as carpets and textiles. Background of the invention [0002] In the past, fibers have been treated with many different active ingredients. These active ingredients are usually in the form of liquid sprays or solid powders and are added to the outer surface of the fibers. Incorporation of the active ingredient can be carried out on the fibers themselves or on shaped articles such as fabrics or carpets. However, these methods of application are inefficient for the amount of active ingredient that needs to be added. Many consumers are concerned about the over-application of substances, such as pesticides, that may be harmful to young children and household pets. There is therefore a need to provide an efficient means for distributing the active ingredient into the fibers which would require t...

AI Technical Summary

Problems solved by technology

However, these methods of application are inefficient for the amount of active ingredient that needs to be added

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