Title:
POURING NOZZLE MADE OF PACKAGING LAMINATE FILM AND METHOD FOR FORMING TEAR-INDUCING SLIT IN PACKAGING LAMINATE FILM
Document Type and Number:
WIPO Patent Application WO/2017/119241
Kind Code:
A1
Abstract:
[Problem] To provide: a pouring nozzle, which is made of a packaging laminate film and can be easily opened by tearing and for which improved liquid cut-off during pouring is achieved; and a method for forming an opening tear-inducing slit in a packaging laminate film that is suitable for use as a packaging bag, etc. for storing and holding a liquid to be packaged. [Solution] A film pouring nozzle, which is made from a packaging laminate film with a laminate structure of three or more layers that is provided with a base film layer, and unstretched sealant layers laminated respectively on the front surface and back surface on either side of the base film layer, and which has a pouring passage in the center portion. The nozzle has a tear-inducing slit resulting from irradiation of a laser light beam at a position that extends across the pouring passage and where the unstretched base film layer on the front surface and/or the back surface of the base film layer has been pushed aside and displaced.
Inventors:
FUTASE KATSUNORI (JP)
Application Number:
PCT/JP2016/086966
Publication Date:
July 13, 2017
Filing Date:
December 13, 2016
Export Citation:
Assignee:
YUSHIN CO LTD (JP)
International Classes:
B65D75/62; B31B70/00; B65B61/02; B65D33/00
Foreign References:
| US20070284032A1 | 2007-12-13 | |||
| JP2015071455A | 2015-04-16 | |||
| JP2005520746A | 2005-07-14 | |||
| JPH1177872A | 1999-03-23 | |||
| JP2001507318A | 2001-06-05 | |||
| JPH035091A | 1991-01-10 | |||
| US3909582A | 1975-09-30 | |||
| JP2012131524A | 2012-07-12 | |||
| JP2015071455A | 2015-04-16 |
Other References:
See also references of EP 3401232A4
Attorney, Agent or Firm:
GINZA MARONIE P.C. (JP)
Download PDF: