Abstract: A composite abrasive paper has at least three surfaces which polished and ground to improve the utilization rate of the abrasive paper and reduce the cost of grinding and polishing abrasive tools. The abrasive paper comprises a first abrasive comprising a first substrate, a first stereo particle layer provided on a surface of the first substrate, a flexible microsphere layer provided on a back surface of the first substrate; a second abrasive comprising a second substrate, a second stereo particle layer provided on surface of the second substrate, a third stereo particle layer provided on a back surface of the first substrate; the first and second abrasive are connected at an edge to form a connection part, the middle non-connection part of the first substrate and the second substrate forms a sealed cavity, the third stereo particle layer is provided opposite to the flexible microsphere layer in the sealed cavity.

Abstract: A composite abrasive paper has at least three surfaces which polished and ground to improve the utilization rate of the abrasive paper and reduce the cost of grinding and polishing abrasive tools. The abrasive paper comprises a first abrasive comprising a first substrate, a first stereo particle layer provided on a surface of the first substrate, a flexible microsphere layer provided on a back surface of the first substrate; a second abrasive comprising a second substrate, a second stereo particle layer provided on surface of the second substrate, a third stereo particle layer provided on a back surface of the first substrate; the first and second abrasive are connected at an edge to form a connection part, the middle non-connection part of the first substrate and the second substrate forms a sealed cavity, the third stereo particle layer is provided opposite to the flexible microsphere layer in the sealed cavity.