Bag with chuck tape

Patent metadata

Field	Value
Publication number	US-10099819-B2
Application number	US-201715585434-A
Country	US
Kind code	B2
Filing date	May 3, 2017
Priority date	Jun 28, 2004
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

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
at least one mounting base part is provided on the cut tape, said at least one mounting base part is positioned between the cut tape and the at least one film and extends in a direction parallel to the longitudinal direction of the cut tape, wherein said at least one mounting base part is configured not to be ripped over the entire length of the cut tape,
a hole portion or a weak line wherein said hole portion or a weak line is provided only in said mounting base part where the cut tape is bonded, over the width direction of the cut tape, said hole portion or a weak line penetrates said at least one mounting base part.

2. The bag according to claim 1 ,
wherein the cut tape is not exposed to the exterior of the bag body through the hole portion or the weak line.

3. 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.

4. The bag according to claim 3 , 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.

5. The bag according to claim 3 , 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.

6. The bag according to claim 3 , 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.

7. The bag according to claim 4 , 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.

8. The bag 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 at least one side or surface opposite to the bottom side or bottom surface.

9. The bag according to claim 8 , wherein the at least one side or surface opposite to the bottom side or bottom surface is not bonded.

10. The bag according to claim 8 , wherein at least a part of the lateral sides or surface that overlap are adhered to each other.

11. The bag according to claim 8 , wherein said at least one side or surface lateral to the bottom side or bottom surface comprises two lateral sides or surfaces wherein at least a part of said two lateral sides or 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.

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

13. A bag comprising:
a bag 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 at least one side or surface opposite to 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
at least one mounting base part is provided on the cut tape, said at least one mounting base part is positioned between the cut tape and the bag body and extends in a direction parallel to the longitudinal direction of the cut tape, wherein said at least one mounting base part is configured not to be ripped over the entire length of the cut tape,
a hole portion or a weak line wherein said hole portion or a weak line is provided only in said mounting base part where the cut tape is bonded, over the width direction of the cut tape, said hole portion or a weak line penetrates said at least one mounting base part.

14. The bag of claim 13 wherein at least one of the bottom side or surface, at least one side or surface lateral to the bottom side or surface or at least one side or surface opposite to the bottom side or surface is open.

15. The bag according to claim 13 ,
wherein the cut tape is not exposable to the exterior of the bag body through the hole portion or the weak line.

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

17. The bag according to claim 16 , 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.

18. 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 bag body;
at least one mounting base part is provided on the cut tape, said at least one mounting base part is positioned between the cut tape and the at least one film and extends in a direction parallel to the longitudinal direction of the cut tape, wherein said at least one mounting base part is configured not to be ripped over the entire length of the cut tape, and
a hole portion or a weak line wherein said hole portion or a weak line is provided only in said mounting base part where the cut tape is bonded, over the width direction of the cut tape, said hole portion or a weak line penetrates said at least one mounting base part.

19. The bag according to claim 18 ,
wherein the cut tape is not exposed to the exterior of the bag body through the hole portion or the weak line.

Assignees

• Idemitsu Unitech Co Ltd

Inventors

• Goto Shuichi
• Tanaka Kenichi

Classifications

• B65D77/32

  Tearing-strings or like flexible elements · CPC title

• B65D33/2508

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

• B65D33/2533

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

• B65D33/00

  Details of, or accessories for, sacks or bags · CPC title