Chuck and chuck-equipped bag
AssigneeIdemitsu Unitech Co., Ltd.
InventorsRyo Katada, Kenichi Tanaka, Takehiro Iwamoto
Life of this patent
Estimating the term…
Abstract
The inner bottom (222b) of a female-like projection (22b) is provided with an elastic viscous material (4) continuous along the longitudinal direction so as to bulge into a space defined between hooks (221b, 221b) of the female-like projection (22b). When a female-like projection (21a) is fitted in the female-like projection (21b), the elastic viscous material (4) is pressed against the head (221a) of the male-like projection (22a) so as to be abutted against the head (221a) of the male-like projection (22a) while undergoing elastic deformation, and is in intimate contact with the surface of the front end side of the head (221a) by the adhesive force and elastic force, whereby the airtightness of the zipper-equipped bag can be secured.
Claims11
A zipper comprising a male member formed with a male projection and a female member formed with a female groove, wherein said male projection and female grooves are fitted to each other along the longitudinal direction in such a manner as to enable resealing and reopening,
- the zipper further comprising an elastic viscous material having an adhesive strength of 2 to 8 N/10 mm, which elastic viscous material is bulged into the part where a front end side of said male projection is facing an inner bottom side of said female groove, said elastic viscous material containing a synthetic rubber and an adhesion-imparting agent, the elastic viscous material being integrated with both or either of said male projection and said female groove.
A zipper-equipped bag provided with a zipper comprising a male member formed with a male projection and a female member formed with a female groove, wherein said male projection and female groove are fitted to each other along the longitudinal direction in such a manner as to enable resealing and reopening,
- the zipper further comprising an elastic viscous material having an adhesive strength of 2 to 8N/10 mm, which elastic viscous material is bulged into the part where the front end side of said male projection is facing the inner bottom side of said female groove, said elastic viscous material containing a synthetic rubber and an adhesion-imparting agent, the elastic viscous material being integrated with both or either of said male projection and said female groove.
Dependencies are inferred from the claim text.