Color Changeable Textile

Abstract

A color changeable textile is formed by weaving a front yarn and a rear yarn. The front yarn forms plural front loops connected to each other. The rear yarn forms plural rear loops connected to each other. The rear yarn further coupled to a portion of the front loops to link the rear loops to the front loops. The color changeable textile shows the color of the front yarn at the front surface when there is no extra force applied to the color changeable textile. A part of the color changeable textile reveals the color of the rear yarn when the color changeable textile is stretched.

What is claimed is: 
     
         1 . A color changeable textile, comprising:
 a front yarn forming a plurality of front loops, wherein the front loops connect to each other thereby forming a front yarn layer; and   a rear yarn forming a plurality of rear loops, wherein the rear loops connect to each other thereby forming a rear yarn layer,   wherein the rear yarn further couples to a part of the front loops for linking the front yarn layer and the rear yarn layer, an elongation of the front yarn is greater than that of the rear yarn, such that when there is no external force applied to the color changeable textile, the front loops are gathered and cover the rear yarn, and the color changeable textile shows the color of the front yarn; when the color changeable textile is stretched, the front loops are deformed, and the rear yarn coupled to the front loops is revealed.   
     
     
         2 . The color changeable textile of  claim 1 , wherein the front yarn is a composite yarn comprising an elastic yarn blended with a base yarn. 
     
     
         3 . The color changeable textile of  claim 1 , wherein a ratio of a stretch ratio of the front yarn layer to a stretch ratio of the rear yarn layer is in a range from about 1.1 to about 4. 
     
     
         4 . The color changeable textile of  claim 3 , wherein the ratio of the stretch ratio of the front yarn layer to the stretch ratio of the rear yarn layer is in a range from about 1.1 to about 3. 
     
     
         5 . The color changeable textile of  claim 4 , wherein the ratio of the stretch ratio of the front yarn layer to the stretch ratio of the rear yarn layer is in a range from about 1.1 to about 2. 
     
     
         6 . The color changeable textile of  claim 1 , wherein a yarn diameter of the front yarn is not smaller than that of the rear yarn. 
     
     
         7 . The color changeable textile of  claim 1 , wherein each of the rear loops comprises one or more sinker loop, at least one sinker loop of the rear loops becomes a transfer sinker loop and couples to the corresponding front loop. 
     
     
         8 . The color changeable textile of  claim 7 , wherein the transfer sinker loop goes the same knitting path as the front yarn goes at the front yarn layer, and the transfer sinker loop returns the rear yarn layer. 
     
     
         9 . The color changeable textile of  claim 1 , wherein the rear yarn is a light color yarn, and the front yarn is a dark color yarn. 
     
     
         10 . The color changeable textile of  claim 1 , wherein the rear yarn is a dark color yarn, and the front yarn is a light color yarn. 
     
     
         11 . A color changeable textile, comprising:
 a front yarn forming a plurality of front loops, wherein the front loops connect to each other thereby forming a front yarn layer; and   a rear yarn forming a plurality of rear loops, wherein an elongation of the front yarn is greater than that of the rear yarn, and the rear loops connect to each other thereby forming a rear yarn layer,   wherein a part of the rear yarn goes from the rear yarn layer to an outside of the front yarn layer via a left down side of a sinker loop of the corresponding front loop, and the rear yarn goes upward and crosses a leg at a left side of the needle loop and returns an inner side of the front yarn layer; the rear yarn goes to the right side of a leg at the right side of the needle loop laterally; the rear yarn further goes to the outside of the front yarn layer at a right side of the leg at the right side of the needle loop, and the rear yarn goes downward and crosses the sinker loop and goes to the inner side of the front yarn layer through a space between the legs and returns the rear yarn layer.   
     
     
         12 . The color changeable textile of  claim 11 , wherein when there is no external force applied to the color changeable textile, the front loops are gathered and cover the rear yarn, and the color changeable textile shows the color of the front yarn; when the color changeable textile is stretched, the front loops are deformed, and the rear yarn coupled to the front loops is revealed. 
     
     
         13 . The color changeable textile of  claim 11 , wherein the front yarn is a composite yarn comprising an elastic yarn blended with a base yarn. 
     
     
         14 . The color changeable textile of  claim 11 , wherein a ratio of a stretch ratio of the front yarn layer to a stretch ratio of the rear yarn layer is in a range from about 1.1 to about 4. 
     
     
         15 . The color changeable textile of  claim 14 , wherein the ratio of the stretch ratio of the front yarn layer to the stretch ratio of the rear yarn layer is in a range from about 1.1 to about 3. 
     
     
         16 . The color changeable textile of  claim 15 , wherein the ratio of the stretch ratio of the front yarn layer to the stretch ratio of the rear yarn layer is in a range from about 1.1 to about 2. 
     
     
         17 . The color changeable textile of  claim 11 , wherein a yarn diameter of the front yarn is not smaller than that of the rear yarn. 
     
     
         18 . The color changeable textile of  claim 11 , wherein the rear yarn is a light color yarn, and the front yarn is a dark color yarn. 
     
     
         19 . The color changeable textile of  claim 11 , wherein the rear yarn is a dark color yarn, and the front yarn is a light color yarn.