公开(公告)号：US10829273B2

公开(公告)日：2020-11-10

申请号：US15760108

申请日：2016-09-13

Applicant: IDEMITSU UNITECH CO., LTD.

Inventor： Takumi Todaka ,  Shunichi Ito

IPC: B65D33/25 ,  A44B19/16 ,  B65D33/06 ,  B31B70/81 ,  B65D33/08

Abstract: A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

公开(公告)号：US10815043B2

公开(公告)日：2020-10-27

申请号：US16322192

申请日：2017-07-31

Applicant: IDEMITSU UNITECH CO., LTD.

Inventor： Shunichi Ito ,  Yoshinori Namba

IPC: B65D75/66 ,  B65D33/00 ,  B65D33/25 ,  B65D33/14 ,  B65D75/58

Abstract: A tape bondable to an inner surface of at least one of films forming a bag body is provided. The tape includes: at least one elongated base; a tearing guide piece bonded to the base in a longitudinal direction of the base and capable of tearing the base and the film; and at least one protrusion protruding in a direction of the tearing guide piece from a surface of the base to which the tearing guide piece is bonded. The protrusion is formed on a portion of the base where the tearing guide piece is not bonded.

公开(公告)号：US11649090B2

公开(公告)日：2023-05-16

申请号：US17036608

申请日：2020-09-29

Applicant: IDEMITSU UNITECH CO., LTD.

Inventor： Takumi Todaka ,  Shunichi Ito

IPC: B65D33/25 ,  B65D33/08 ,  A44B19/16 ,  B65D33/06 ,  B31B70/81

CPC classification number: B65D33/2533 ,  A44B19/16 ,  B31B70/8133 ,  B65D33/065 ,  B65D33/08 ,  B65D33/2583

Abstract: A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.