Fragrance impregnated fabric

• US 4,514,461 A
• Filed: 08/10/1981
• Issued: 04/30/1985
• Est. Priority Date: 08/10/1981
• Status: Expired due to Term

• Current Assignee: Yen-Kong Woo
• Original Assignee: Yen-Kong Woo
• Inventors: Woo, Yen-Kong
• Primary Examiner(s): Thibodeau, Paul J.
• Application Number:
  US06/291,443
• Time in Patent Office: 1,359 Days
• Field of Search: 428/245, 428/283, 428/290, 428/240, 428/321.5, 428/905, 428/323, 428/325, 428/327, 401/132, 424/16, 424/27, 424/31, 424/76, 252/316
• US Class Current: 442/96
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor
• CPC Class Codes: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00
• CPC Class Codes: B01J 13/025 Applications of microcapsules not provided for in other subclasses
• CPC Class Codes: D06M 13/005 Compositions containing perfumes; Compositions containing deodorants
• CPC Class Codes: D06M 23/12 Processes in which the treating agent is incorporated in microcapsules making microcapsules B01J13/02
• CPC Class Codes: Y10S 428/905 Odor releasing material
• CPC Class Codes: Y10T 428/249997 Encapsulated liquid
• CPC Class Codes: Y10T 428/25 Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 442/2303 Coating or impregnation provides a fragrance or releases an odor intended to be perceptible to humans

Abstract

This invention is a fabric impregnated with micron-size bubbles in the form of fragile capsules within the interstices between the strands inside the body of the fabric by spraying the capsules in combination with a liquid binder and then putting the fabric through a set of rollers, the invention being that the micron-size bubbles are so bonded completely within the interior of the fabric that when rubbed, certain of the bubbles break and release the fragrance from the broken capsules, none of the capsules being on the outside of the fabric surface.

Claims

1. A fabric having an impregnation of micro-sized capsules;

said capsules being formed by a fragrance emitting core encapsules in a micro-sized container of sufficient strength to resist breakage under normal handling of the fabric but sufficiently fragile to rupture under suitably exerted hand pressure to release said fragrance;

said impregnation having the characteristic of being sprayed with said capsules in company with a liquid binder by a forceful spray to insure complete and uniform penetration of said fabric by said capsules;

said fabric having the characteristic of having passed lightly between heated pressure rollers to insure absence of any capsules on its surface thus providing a smooth surface on said fabric.