US 6,387,488 B1 · Color-developing composite short fibers and color-developing structures employing the same

Abstract

A color-developing composite short fiber having a length of 0.01 to 100 mm is obtained by cutting a color-developing short fiber capable of reflecting visible rays and interfering with visible rays consisting of two or more kinds or polymer compounds having different refractive indices which are laminated alternately. A color-developing structure is formed by binding particles of the short fiber to one another, dispersing the short fiber in a mixture with other materials or adhering the short fiber on the surface of a support. Further, a color-developing composite short fiber having a length of 0.01 to 100 mm is obtained by cutting a color-developing composite fiber comprising two or more polymer compounds having different refractive indices which are laminated alternately forming a layer capable of reflecting visible rays and interfering therewith and a layer capable of reflecting invisible rays and interfering therewith.

Claims16

Dependent claims

A color-developing composite short fiber capable of reflecting visible rays and interfering with said visible rays, comprising:

a first layer of a first polymer compound, said first polymer compound having a first refractive index;
a second layer of a second polymer compound laminated to the first layer, said second polymer compound having a second refractive index, said second refractive index being different from the first refractive index;
and
said short fiber having a length of 0.01 to 100 mm and having a cross section orthogonal to a longitudinal direction of the short fiber, said cross section having two linear opposed sides.

1 more element

Dependencies are inferred from the claim text.

Color-developing composite short fibers and color-developing structures employing the same

Life of this patent

Color-developing composite short fibers and color-developing structures employing the same

Life of this patent

Abstract

Claims16