摘要:
Disclosed herein is a polyester film for flexographic printing plates, which comprises: a polyester base layer (B); a detachable adhesive layer (A) formed on one surface of the polyester base layer using polyester resin and acrylic resin; and an antistatic layer (C) formed on the other surface of the polyester base layer. In the disclosed polyester film, the detachable adhesive layer is formed on one surface of the polyester base layer using polyester resin in combination with acrylic resin, and thus can have increased adhesion to the base layer and photosensitive resin. Also, the other surface of the polyester base layer has formed thereon the antistatic layer, which has excellent antistatic performance and, at the same time, is not transferred to a surface opposite thereto and is not greatly influenced by humidity. Thus, the disclosed polyester film is suitable for flexographic printing plates.
摘要:
A method for producing a release film which is used for the manufacture of adhesive labels, double-sided tapes, etc., is disclosed. The release film provides improved adhesion between a substrate and a release layer, and excellent peel strength between the release layer and an adherent. The method includes the steps of : obtaining a silicone aqueous emulsion release liquid by dispersing a silicone aqueous release agent including a dispersion of a vinyl-modified colloidal silica, a dispersion of a platinum chelate catalyst and a polysiloxane water-dispersible silicone emulsion, in water, so as to achieve a solid content of the release liquid of 2.5˜30% by weight; and applying and drying the obtained release liquid on a substrate to form a release layer.
摘要:
A release agent and a release liquid which are used for the manufacture of labels, double-sided tapes, etc., are disclosed. The release agent and the release liquid provide improved adhesion between a substrate and a release layer, and excellent peel strength betwveen the release layer and an adherent. The release agent includes a dispersion of a vinyl-modified colloidal silica, a dispersion of a platinum chelate catalyst, and a polysiloxane water-dispersible silicone emulsion. The release liquid is obtained by dispersing the release agent in water so as to have a solid content of 2.5˜30% by weight. The release film is produced by applying the release liquid on a substrate, followed by drying.