Warp knitting machine, warp knitted fabric manufacturing method and warp knitted fabric

1. A method of manufacturing a warp knitted fabric, the method comprising:

knitting a front-side base fabric and a back-side base fabric using a double raschel machine including a pair of jacquard bars at a front side, and a pair of jacquard bars at a back side; and

forming a jacquard pattern in the front-side base fabric and the back-side base fabric using jacquard yarns fed from the respective jacquard bars, by operating jacquard mechanisms of the pair of jacquard bars at the front side, and the pair of jacquard bars at the back side, respectively,

wherein a joining position where the front-side base fabric is joined to the back-side base fabric by the jacquard yarns due to the operation of the jacquard mechanisms, and a non-joining position where the front-side base fabric is not joined to the back-side base fabric are provided,

insertion yarns are inserted between the front-side base fabric and the back-side base fabric by at least one guide bar disposed between the pair of jacquard bars at the front side, and the pair of jacquard bars at the back side, and

the insertion yarns are pressed by the front-side base fabric and the back-side base fabric at the joining position of the front-side base fabric and the back-side base fabric.

2. The method according to claim 1 , wherein a chain stitch texture is formed in the front-side base fabric by a guide bar in front of the pair of jacquard bars at the front side, and a chain stitch texture is formed in the back-side base fabric by a guide bar in back of the pair of jacquard bars at the back side,

a joining position where adjacent wales of the chain stitch texture are joined by the jacquard yarns and a non-joining position where the adjacent wales are not joined are formed in each of the front-side base fabric and the back-side base fabric, and

the non-joining position of the adjacent wales of the chain stitch texture in the front-side base fabric is caused to match the non-joining position of the adjacent wales of the chain stitch texture in the back-side base fabric so as to form holes in the warp knitted fabric.

3. A warp knitted fabric having a jacquard pattern formed by jacquard yarns in a front-side base fabric and a back-side base fabric,

wherein a joining position where the front-side base fabric is joined to the back-side base fabric by the jacquard yarns, and a non-joining position where the front-side base fabric is not joined to the back-side base fabric are provided,

insertion yarns are inserted between the front-side base fabric and the back-side base fabric, and

the insertion yarns are pressed by the front-side base fabric and the back-side base fabric at the joining position of the front-side base fabric and the back-side base fabric.

4. The warp knitted fabric according to claim 3 , wherein at the non-joining position of the front-side base fabric and the back-side base fabric, a surface of the warp knitted fabric bulges toward at least one of a front side and a back side.

5. The warp knitted fabric according to claim 3 , wherein a chain stitch texture is formed in each of the front-side base fabric and the back-side base fabric,

a joining position where adjacent wales of the chain stitch texture are joined by the jacquard yarns and

a non-joining position where the adjacent wales are not joined are formed, and

the non-joining position of the adjacent wales in the front-side base fabric matches the non-joining position of the adjacent wales in the back-side base fabric in a front-back direction of the warp knitted fabric so as to form holes.

6. A shoe upper comprising the warp knitted fabric according to claim 3 .