BAG BODY FOR CLEANING PIPE AND METHOD OF CLEANING PIPE

摘要

PROBLEM TO BE SOLVED: To provide a bag body for cleaning pipe which has high shrinkage property and excellent durability.SOLUTION: The bag body 1 for cleaning pipe includes a bag part 2 into which compressed air is supplied and a hose part 3 which is connected to the bag part 2. The bag part 2 has a triple structure composed of: an inner bag made of rubber of which the longitudinal cross-section assumes an ellipsoidal shape and the tapered back end is opened; an outer bag made of polyester which has substantially the same shape as the inner bag, allows the inner bag to be covered from the outside with the outer bag and allows the tapered back end to be opened; and the outermost bag made of polyester which has the same shape as the outer bag, allows the outer bag to be covered from the outside and allows the tapered back end to be opened.