Pre-ultraviolet radiation protective additives for textiles and methods of use
AssigneeClaros Technologies Inc.
InventorsAbdennour Abbas, Andrew Gonzalez, John Wilfrid Brockgreitens
Life of this patent
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Abstract
Ultraviolet protective textiles and methods of making ultraviolet protective textiles including a sheet substrate comprising a synthetic, semi-synthetic or natural textile or blend thereof, a UV absorbing chemical present on the substrate, and a capping agent bound to the UV absorbing chemical. The UV absorbing chemical may be an organic acid, protein, flavonoid, or a polyphenolic compound, for example, such as tannic acid. The capping agent may be an alkylbenzene based surfactant, phenylethanoid, monophenol, or protein, for example, such as whey or casein.
Claims17
An ultraviolet protective textile comprising:
- a sheet substrate comprising a synthetic, semi-synthetic or natural textile or blend thereof;
- a UV absorbing chemical present on the substrate and directly bound to the substrate;
- and
- a capping agent comprising a naturally derived protein, the capping agent bound to reactive groups of the UV absorbing chemical, wherein the capping agent blocks access to the reactive groups of the UV absorbing chemical to reduce or prevent interaction with other compositions.
The method of making an ultraviolet protective material comprising the steps of:
- a. applying an ultraviolet absorbing organic compound in a solution to a porous material to diffuse the ultraviolet absorbing organic compound into the porous material;
- and then
- b. applying a capping agent comprising a naturally derived caseinate in a solution to the porous material to diffuse the capping agent into the porous material, wherein the capping agent blocks access to the reactive groups of the UV absorbing chemical to reduce or prevent interaction with other compositions;
- and
- c. drying the porous material with the applied ultraviolet absorbing organic compound solution, after step a or after step b, to bind the compound to a surface of the material and to interior fibers of the material.
Dependencies are inferred from the claim text.