Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Coating or impregnation provides protection from radiation...
Patent
1997-12-29
2000-03-07
Pezzuto, Helen L.
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Coating or impregnation provides protection from radiation...
442 59, 442130, 442133, D03D 300
Patent
active
060340037
ABSTRACT:
The present invention relates to UV-resistant fabric, articles of clothing made from such fabric, and methods of making such fabric. The method includes 1) preparing an aqueous solution of anthraquinone (10) and NaOH (62), 2) immersing the fabric to be treated in the solution (64), 3) heating the solution/fabric mixture (66), 4) adding to the solution/fabric mixture an appropriate reducing agent (68), and 5) rinsing the fabric thus treated with hydrogen peroxide (70). White fabrics can be treated (72) with a conventional bleaching, or whitening, agent. Colored fabrics can contain, as an additional UV-absorbing compound, one of the class of compounds known as melanins, including those formed from the free radical polymerization of compounds derived from the precursor amino acid tyrosine (24), such as 5,6-dihydroxyindole (34).
REFERENCES:
patent: 4339503 (1982-07-01), Rukavina et al.
patent: 5066082 (1991-11-01), Longstaff
patent: 5342610 (1994-08-01), Katoh et al.
patent: 5374362 (1994-12-01), McFarland
patent: 5458956 (1995-10-01), Shi et al.
Kroll Michael I.
Pezzuto Helen L.
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