Verfahren zum Verbinden von Folien, nach diesem Verfahren hergestellte breite Folie, und landwirtschaftliches Abdeckungsmaterial aus dieser breiten Folie

摘要

A method for joining films having a hydrophilized surface at their single surface and an excellent melt-bonding force at the melt-bonded portion, which is formed by disposing two films (A) having a hydrophilized surface (2) at their single surface to align the hydrophilized surfaces (2) so as to butt each end portion; overlaying a film (B) on a side of non-hydrophilized surface (2) of the films (A) so as to bridge the butting portion, and hot-pressing the overlapping portion (c1) to join the two films (A). The wide film obtained by the above-mentioned method is suitable for a covering material for agricultural use.