Seamless elastic strap with forked structures and manufacturing method thereof

A seamless elastic strap with forked structures, comprising an upper layer fabric strap (1) and a lower layer fabric strap (2), wherein the upper layer fabric strap (1) is formed by interlacing an upper layer warp (3), an upper layer wrapped warp (4), and an upper layer weft (5);

• the lower layer fabric strap (2) is formed by interlacing a lower layer warp (6), a lower layer wrapped warp (7), and a lower layer weft (8);
• when the upper layer wrapped warp (4) is only interwoven with the upper layer weft (5), and the lower layer wrapped warp (7) is only interwoven with the lower layer weft (8), it is a forking part (9) of the elastic strap;
• when the upper layer wrapped warp (4) and the lower layer wrapped warp (7) are simultaneously interwoven with the upper layer weft (5) and the lower layer weft (8), it is a merging part (10) of the elastic strap;
• and the elastic strap is composed of a plurality of the forking parts (9) and a plurality of the merging parts (10) arranged at intervals.