Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-03-29
1993-08-03
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
2239, 5482, 57241, 57250, 57258, 424402, 428247, 428248, 428252, 428253, 428283, 428288, 428290, 4283202, 4283215, 428341, 428361, 428378, B32B 516, B32B 3300
Patent
active
052327698
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to microcapsules encapsulating a substance having a function to improve physiological conditions of human skin, such as vitamin C, vitamin E, seaweed extracts, antipruritics and analgesics, and/or aromatic agents; treating liquids containing such microcapsules; and textile structures treated with such a treating liquid, particularly apparel which are worn contacting directly with human skin, such as stockings, socks, underwear or the like, bedclothes or medical auxiliary materials.
2. Background Art
Hitherto in the cosmetic field, etc., there have come into the market articles with the object of skin whitening, such as whitening creams, whitening packs or the like, namely, cosmetics incorporated with vitamin C (ascorbic acid) efficacious against melanopathy and can maintain a fair and fresh complexion by protecting the skin against speckling, freckling or the like. There also have been placed on the market articles with an object of moisturizing the skin, such as humidity preservable creams, humidity preservable packs or the like, namely, cosmetics incorporated with algae colloid, i.e., a seaweed extract, as an active principle having a moisturizing effect to prevent drying of the skin, which could realize a soft, young and fresh skin by moisturizing the skin.
Thus, recently, importance is being attached to the skin-care of hands and feet equal to the skin-care of faces, so that whitening lotions or the like incorporated with vitamin C or seaweed extracts have appeared for application to arms or legs.
However, lotions or creams, such as the abovementioned type to be left as they have once been applied to the surface of the skin, are directed to use after bathing, before sleeping or the like, and have not given a certain sustained function to the skin. Accordingly, it is the present situation that, in general, skin-care from going out in the morning until coming home has not been taken into consideration.
Pharmaceuticals with an object of analgesic, antiphlogistic or antipruritic effects have so far been developed in diversified dosage forms such as internal medicine, injection, ointment or plaster, and many have been placed on the market. For example, in Japanese Patent Application Laid-open No. 60-188,314, there are described antipruritic plasters comprising an ointment compounded with crotaminton as an antipruritic active principle, and in Japanese Patent Application Laid-open No. 60-178,837, there are described oral-administrable gelatine capsules encapsulating an anti-SRS-A agent
However, these administration methods have not always been effective, as one feels uncomfortableness inherent in ointments when one has no pain or itch, one cannot be given selectivity in acting position or fast-acting effects when one feels pain or itch, feels uncomfortableness and harm inherent in injection, or the like. Further, as technology to utilize microcapsules, there have been proposed a method of applying a mixture of microcapsules encapsulating a liquid toilet preparation with a size containing a melamine resin to textile articles (British Patent Specification No. 1,401,143); a method for preparing fragrant towel fabrics by applying a liquid mixture of aromatic-containing microcapsules with an acrylic resin to towel fabrics (Japanese Patent Application Laid-open No. 58-4,886); a process for preparing fragrance-emitting printed articles, by printing a printing paste comprising microcapsules composed of a filmy starch envelope encapsulating an aromatic agent, a thermoplastic material and a thickening agent (Japanese Patent Applications Laid-open Nos. 53-47,440 and 53-49,200); and the like However, there have not yet been disclosed microcapsules encapsulating the above-mentioned material functionable to improve physiological conditions of the skin, such as vitamins, seaweed extracts, analgesics, antipruritics or the like (hereinafter, may be referred to as "skin-improver").
Further, as a hitherto proposed pillow having a fragrance, there have been those hav
Fukuda Shigeru
Fuse Toshikazu
Kikuchi Masaru
Miyoshi Kyoji
Mizukami Yoshikatsu
Cannon James C.
Kanebo Ltd.
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