EAR PART MATERIAL FOR MASK, MASK, METHOD FOR PRODUCING EAR PART MATERIAL FOR MASK, AND METHOD FOR PRODUCING MASK

摘要

The ear part material for a mask of the present invention comprises a first face, a stretchable member having a second face opposed to the first face, a first surface material joined to the first face, and a second surface material joined to the second face. Before starting to use, the stretchable member has a natural length, and the first surface material and second surface material are contracted in a predetermined direction.