Bag with chuck tape

Patent metadata

Field	Value
Publication number	US-9669967-B2
Application number	US-201514645117-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Jun 28, 2004
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A bag 1 with a reclosable tape includes a reclosable tape 20 having a male fastener part 21 and a female fastener part 22 attached to one inner surface of a bag body 10 , a cut tape 23 provided between mounting base parts 212 and 222 of those fastener parts, and an easily unsealable structure 50 formed on the mounting base part 212 adjacent to the cut tape 23 in an unsealing start part 30 of a side seal part 60 of the bag body. The easily unsealable structure 50 may be formed by: forming a hole portion 50 a or a portion formed by a weak line on the mounting base part 212 , arranging a thickness of the mounting base part 212 in the unsealing start part 30 so as to be thinner than other portions, or forming a non-adhesive part between the mounting base part 212 and the cut tape 23.

First claim

The invention claimed is:

1. A bag comprising:
a bag body comprising at least one film,
a cut tape bonded to an inner surface of said at least one film of said bag body, the cut tape being configured so that only the film to which the cut tape is bonded over the entire length of the cut tape, is ripped over the entire length of the cut tape to form an opening in the bag body; and
a hole portion or a weak line provided in the at least one film of said bag body and positioned in an area opposite to the inner surface of the at least one film which the cut tape is bonded to, and
wherein the cut tape is exposable to the exterior of the bag body through the hole portion or the weak line.

2. The bag according to claim 1 , further comprising a male fastener and a female fastener provided on the inner surface of said at least one film to which the cut tape is bonded over said cut tape's entire length, the male fastener and the female fastener being configured to be fitted with each other.

3. The bag according to claim 2 , wherein each of the male fastener and the female fastener has a mounting base part, and each of the male fastener and the female fastener is bonded to the inner surface of the at least one film through the mounting base part.

4. The bag according to claim 2 , wherein the cut tape is bonded to the inner surface of the at least one film at a position between the part of the inner surface of the at least one film at which the male fastener or the female fastener is bonded to the at least one film and another part of the inner surface of the at least one film at which the other male fastener or the female fastener is bonded to the bag.

5. The bag according to claim 2 , wherein the cut tape is bonded to the at least one film in parallel to a longitudinal direction of the male fastener and the female fastener.

6. The bag according to claim 3 , wherein
the mounting base part comprises a first mounting base part for the male fastener and a second mounting base part for the female fastener, one of the first and second mounting base parts being wider than the other of the first and second mounting base parts, and
wherein the at least one film is overlapped to define at least two bag walls wherein said bag walls have an inner surface and an outer surface, and said first and second mounting base parts being bonded to only one and the same inner surface of the bag walls.

7. The hag according to claim 1 , further comprising a packaging material wherein said packaging material is overlapped to define an at least one bottom side or bottom surface, at least one side surface or surface lateral to the bottom side or bottom surface, and an upper end opposite the bottom side or bottom surface end.

8. The bag according to claim 7 , wherein the upper end is not bonded.

9. The bag according to claim 7 , wherein at least a part of the lateral sides are adhered to each other.

10. The bag according to claim 7 , wherein said at least one side or surface lateral to the bottom side or bottom surface comprises two lateral side surfaces wherein at least a part of said two lateral side surfaces are bonded to each other to define a bonded portion, and a part of the cut tape is overlapped at the bonded portion to define an overlapped bonded portion, and
the hole portion or the weak line is provided in the overlapped bonded portion.

11. The bag according to claim 10 , further comprising a tab provided in the overlapped portion.

12. A bag comprising:
a hag body comprising a packaging material that is overlapped to define an at least one bottom side or bottom surface, at least one side or surface lateral to the bottom side or bottom surface and an upper end opposite the bottom side or bottom surface;
a cut tape bonded to an inner surface of the bag body, the cut tape being configured so that only the bag body surface on which the cut tape is bonded over the entire length of the cut tape, is ripped over the entire length of the cut tape; and
a hole portion or a weak line provided in a surface of the bag body opposite a surface of the bag body which the cut tape is bonded to,
wherein the cut tape is exposable to the exterior of the bag body through the hole portion or the weak line, and
wherein the cut tape is not directly bonded to the surface of the bag body in which the hole portion or weak line is provided over an area of the surface of the bag body which is directly opposite to the area of the inner surface of the bag body which is bonded to the cut tape and configured to be ripped by the cut tape.

13. The bag according to claim 12 , further comprising a male fastener and a female fastener provided on the inner surface of the hag body, the male fastener and the female fastener being configured to be fitted with each other.

14. The bag according to claim 13 , wherein each of the male fastener and the female fastener have a mounting base part, and each of the male fastener and female fastener is bonded to the inner surface of the bag body through the mounting base part.

15. The bag according to claim 2 , further comprising a packaging material that is overlapped to define an at least one bottom side or bottom surface, at least one side or surface lateral to the bottom side or bottom surface and an upper end opposite the bottom side or bottom surface end.

16. The bag according to claim 1 , wherein the hole portion or a weak line arc positioned not to expose the contents of the bag to the exterior of the bag.

17. The bag of claim 1 wherein the cut tape is exposable to the exterior of the bag over a width direction of the cut tape.

18. The bag of claim 1 wherein the opening in the bag body is sufficient to remove contents from the bag.

19. A bag comprising:
a bag body comprising at least one film wherein said at least one film comprises a first inner surface and a second inner surface, wherein said first and second inner surfaces are positioned opposed to each other,
a cut tape bonded to the first inner surface of a bag body film over the entire length of the cut tape, the cut tape being configured so that only said at least one film to which the cut tape is bonded over the entire length of the cut tape is ripped over the entire length of the cut tape to form an opening in the body; and
a hole portion or a weak line provided on said second inner surface portion, wherein the cut tape is exposable to the exterior of the bag body through the hole portion or the weak line.

20. The bag of claim 1 , wherein said at least one film of said bag body which provides the hole portion or a weak line is configured not to be ripped.

21. The bag of claim 19 , wherein said second inner surface of said at least one film of said hag body is configured not to be ripped.

22. The bag of claim 1 , wherein the cut tape is not directly bonded to the surface of the film in which the hole portion or a weak line is provided over an area of the at least one film where the cut tape is configured to rip the bag body.

23. The bag of claim 19 , wherein the cut tape is not directly bonded to a location of said second inner surface, wherein said location is defined as an area opposite to said first inner surface which is configured to be ripped by said cut tape.

24. A bag comprising:
a bag body comprising at least one film which comprises a portion which defines a first inner surface and a portion which defines a second inner surface, wherein said first and second inner surfaces are position

Assignees

• Idemitsu Unitech Co Ltd
• Idemistu Unitech Co Ltd

Inventors

• Goto Shuichi
• Tanaka Kenichi

Classifications

• B65D33/2508

  using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor · CPC title

• B65D33/2533

  the slide fastener being located between the product compartment and the tamper indicating means · CPC title

• B65D77/32

  Tearing-strings or like flexible elements · CPC title

• B65D33/2575 Primary

  the slide fastener providing access to the bag through a bag wall, e.g. intended to be cut open by the consumer · CPC title

• B65D33/25 Primary

  Riveting; Dovetailing; Screwing; using press buttons or slide fasteners · CPC title