Color-changing fabric having printed pattern

Patent metadata

Field	Value
Publication number	US-11708649-B2
Application number	US-202016880802-A
Country	US
Kind code	B2
Filing date	May 21, 2020
Priority date	May 21, 2020
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

A color-changing product includes a fabric. The fabric includes a first layer and a second layer. The first layer is arranged using at least one fiber. The at least one fiber includes (a) an electrically conductive core and (b) a coating disposed around and along the electrically conductive core. The second layer is printed onto the first layer. The second layer includes a foreground thermochromic pigment that is selectively activatable by providing an electrical current to the electrically conductive core of the at least one fiber to change at least one of a foreground color or a pattern of the second layer.

First claim

The invention claimed is:

1. A camouflage product comprising:
a fabric including:
a base layer arranged using a plurality of color-changing fibers, each of the plurality of color-changing fibers including:
an electrically conductive core; and
a coating disposed around and along the electrically conductive core, the coating including a polymeric material having a first color-changing pigment; and

a pattern layer printed onto the base layer, the pattern layer including a second color-changing pigment and providing a camouflage pattern along the base layer;

a connection bus disposed along at least a portion of the fabric, the connection bus forming a weld between the electrically conductive cores of the plurality of color-changing fibers, the connection bus including:
a connection layer manufactured from a metallic material that electrically connects the electrically conductive cores; and
a sealing layer that electrically isolates the weld from a surrounding environment;

a power source electrically connected to the connection bus; and
a controller configured to selectively activate the power source to provide an electrical current to the connection bus and, thereby, the electrically conductive cores to activate the first color-changing pigment and the second color-changing pigment to transition the camouflage pattern from a first camouflage pattern to a second camouflage pattern different than the first camouflage pattern.

2. The camouflage product of claim 1 , wherein the connection bus includes a canvas layer positioned on top of the connection layer and the sealing layer.

3. The camouflage product of claim 1 , wherein the first camouflage pattern has a first brightness and the second camouflage pattern has a second brightness different than the first brightness.

4. The camouflage product of claim 1 , wherein the first camouflage pattern has a first camouflage design and the second camouflage pattern has a second camouflage design different than the first camouflage design.

5. The camouflage product of claim 1 , wherein the pattern layer includes a first portion and a second portion, wherein the first portion includes the second thermochromic pigment and the second portion does not include a corresponding thermochromic pigment.

6. The camouflage product of claim 1 , wherein the pattern layer includes a first portion and a second portion, and wherein the first portion includes the second thermochromic pigment and the second portion includes a third thermochromic pigment different than the second thermochromic pigment.

7. A color-changing product comprising:
a fabric including:
a base layer arranged using a plurality of color-changing fibers, each of the plurality of color-changing fibers including:
an electrically conductive core; and
a coating disposed around and along the electrically conductive core, the coating including a polymeric material having a first thermochromic pigment; and

a pattern layer printed onto the base layer, the pattern layer including a second thermochromic pigment and providing a pattern along the base layer;

a connection bus disposed along at least a portion of the fabric, the connection bus forming a weld between the electrically conductive cores of the plurality of color-changing fibers;
a power source electrically connected to the connection bus; and
a controller configured to selectively activate the power source to provide an electrical current to the connection bus and, thereby, the electrically conductive cores to activate the first thermochromic pigment and the second thermochromic pigment to transition the pattern from a first state to a second state different than the first state.

8. The color-changing product of claim 7 , wherein the first state is a camouflage pattern having a first brightness and the second state is the camouflage pattern having a second brightness.

9. The color-changing product of claim 7 , wherein the first state is a first camouflage pattern and the second state is a second camouflage pattern different that the first camouflage pattern.

10. The color-changing product of claim 7 , wherein the pattern layer includes a first portion and a second portion, wherein the first portion includes the second thermochromic pigment and the second portion does not include the second thermochromic pigment.

11. The color-changing product of claim 10 , wherein the second portion includes a non-color-changing pigment.

12. The color-changing product of claim 10 , wherein the second portion includes no pigment, thereby, exposing the base layer.

13. The color-changing product of claim 7 , wherein the pattern layer includes a first portion and a second portion, and wherein the first portion includes the second thermochromic pigment and the second portion includes a third thermochromic pigment different than the second thermochromic pigment.

14. The color-changing product of claim 7 , wherein the base layer includes at least one non-color changing fiber that is a natural fiber or a synthetic fiber that does not include the electrically conductive core and the coating.

15. The color-changing product of claim 7 , wherein the electrically conductive core has a first tensile strength, wherein each of the plurality of color-changing fibers includes a reinforcement core disposed within the coating, and wherein the reinforcement core has a second tensile strength that is greater than the first tensile strength.

16. The color-changing product of claim 7 , wherein the connection bus includes:
a connection layer manufactured from a metallic material that electrically connects the electrically conductive cores; and
a sealing layer that electrically isolates the weld from a surrounding environment.

17. The color-changing product of claim 16 , wherein the connection bus includes a canvas layer positioned on top of the connection layer and the sealing layer.

18. The color-changing product of claim 7 , wherein the connection bus includes a plurality of separate connection busses positioned along the fabric to provide a plurality of groupings of welded fibers.

19. The color-changing product of claim 7 , wherein the connection bus is a single connection bus extending continuously along a length of the fabric.

20. A color-changing product comprising:
a fabric including:
a base layer arranged using a plurality of color-changing fibers, each of the plurality of color-changing fibers including:
an electrically conductive core; and
a coating disposed around and along the electrically conductive core, the coating including a first thermochromic pigment; and

a pattern layer disposed on the base layer, the pattern layer including a second thermochromic pigment and providing a pattern along the base layer; and

a connection bus disposed along at least a portion of the fabric, the connection bus forming a weld between the electrically conductive cores of the plurality of color-changing fibers, wherein the first thermochromic pigment and the second thermochromic pigment are activatable by providing an electric current to the connection bus to transition the pattern from a first state to a second state different than the first state.

Assignees

• Univ Central Florida Res Found Inc

Inventors

• Abouraddy Ayman
• Kaufman Joshua
• Tan Felix
• Monroe Morgan

Classifications

• D06P1/44

  using insoluble pigments or auxiliary substances, e.g. binders · CPC title

• D06P1/0096

  Multicolour dyeing · CPC title

• D06P1/004

  Dyeing with phototropic dyes; Obtaining camouflage effects · CPC title

• D01D5/34

  Core-skin structure; Spinnerette packs therefor · CPC title

• D03D1/0088 Primary

  Fabrics having an electronic function · CPC title