| 摘要 |
A non-blocking waterproof seam tape for covering sewn seams of garments is taught. The seam tape is comprised of an expanded porous polytetrafluoroethylene layer in which one surface has been densified, a cured or partially cured polyurethane adhesive layer, and a thermoplastic hot melt adhesive layer. The densified surface of the expanded porous polytetrafluoroethylene layer prevents the entry of the thermoplastic adhesive through cold creep into the expanded porous polytetrafluoroethylene layer while the same tape is stored in roll form. |
