To provide a device for supplying a wrinkle adhesion preventing material of filter paper F that has a simple structure, does not require arrangements replacement when the filter paper F of different dimension of the width direction is manufactured, and improves the productivity.

This device supplies an uncured wrinkle adhesion preventing material S from a wrinkle adhesion preventing material feeder 40 to both width ends of the filter paper F while feeding the wrinkled filter paper F in one direction. Before supplying the wrinkle adhesion preventing material S to the filter paper F, a pair of squashing member 34 for squashing the crests of both shoulder parts of the wrinkle P of the filter paper F are disposed at positions on the more upstream side of the feed direction of the filter paper F than the wrinkle adhesion preventing material feeder 40. Both squashing members 34 have an adjusting mechanism for adjusting the interval between them according to the dimension of the width direction of the filter paper F.