Compression bag

Abstract

A compression bag is provided. The compression bag includes a bag body, a sealing strip, and a one-way valve, where two sides of the bag body are respectively folded inwardly to form folding portions; portions between the folding portions respectively form bag sheets; two ends of the bag body are sealed; an edge of at least one end of the bag body is thermocompression-sealed; an elongated hole and a valve hole are formed in the bag body; the sealing strip is fixedly provided in the elongated hole; and the one-way valve is fixedly provided in the valve hole, and allows unidirectional flow from inside to outside. At two sides of the compression bag, the folding portions for changing a volume through expansion and contraction and the bag sheets connected between the folding portions are all obtained by folding different parts of the bag body.

Dependencies are inferred from the claim text.