Rainbow and hologram images on fabrics
OwnerMunzer Makansiinventor
Life of this patent
Estimating the term…
Abstract
A fibrous sheet is provided with an outer surface having fibrous elements which are embossed with a pattern of fine grooves that are substantially aligned from fibrous element to fibrous element. The pattern of fine grooves is embossed directly on the surface of the fibrous sheet and produces rainbow and/or hologram images on exposure to light. In contrast, prior fabrics for producing rainbow or hologram images were laminated to plastic or metal foils having pre-embossed patterns of grooves. Sheets and fabrics of the present invention are free from such impermeable foils and retain desirable attributes of breathability and other aesthetic qualities.
Claims7
A fibrous sheet having an outer surface comprising fibrous elements embossed with a multiplicity of fine grooves that are substantially aligned from fibrous element to fibrous element and form a pattern that produces rainbow and/or hologram images when the sheet is viewed at an angle to incident light, said grooves being spaced apart uniformly by about 0.1 to 10 microns, and being at least 0.01 micron deep, and said embossed patterns of fine grooves on the individual fibrous elements of the sheet surface continuing to neighboring fibrous elements substantially in phase, such that the distance between the last groove on one fibrous element and the first groove on the neighboring fibrous element is a multiple of the groove width.
Dependencies are inferred from the claim text.