Zipper tape, bag provided with zipper tape, and method for manufacturing bag provided with zipper tape

A zipper tape comprising:

• a zipper tape body comprising:
• a first base strip a second base strip partially facing the first base strip and having a region not facing the first base strip and a first engagement portion and a second engagement portion being mutually engageable and projecting from the first base strip and the second base strip, respectively;
• and
• a cutting strip provided in a region where the second base strip does not face the first base strip, wherein
• the zipper tape body is formed of a resin composition whose main component is a polyolefin resin, and
• the cutting strip comprises:
• a cutting strip body formed of the resin composition whose main component is the polyolefin resin and
• a peelable layer layered on at least a part of at least a surface of the cutting strip body facing the second base strip, the peelable layer being formed of a resin composition having peelability with respect to the polyolefin resin.

A zipper-tape-attached bag comprising:

• a bag body having a first surface and a second surface opposite from each other;
• a zipper tape body comprising:
• a first base strip bonded to the first surface;
• a second base strip partially facing the first base strip and having a region not facing the first base strip, the region including a bonding portion bonded to the first surface;
• and a first engagement portion and a second engagement portion being mutually engageable and projecting from the first base strip and the second base strip, respectively;
• and
• a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip, wherein
• the zipper tape body is formed of a resin composition whose main component is a polyolefin resin, and
• the cutting strip comprises:
• a cutting strip body formed of the resin composition whose main component is the polyolefin resin, and bonded to the first surface;
• and
• a peelable layer layered on at least one part of at least an opposite surface of the cutting strip body from a surface of the cutting strip body bonded to the first surface, the peelable layer being formed of a resin composition having peelability with respect to the polyolefin resin.

A zipper tape comprising:

• a zipper tape body comprising:
• a first base strip;
• a second base strip partially facing the first base strip and having a region not facing the first base strip;
• and a first engagement portion and a second engagement portion being mutually engageable and projecting from the first base strip and the second base strip, respectively;
• and
• a cutting strip provided in a region where the second base strip does not face the first base strip, wherein
• the zipper tape body is formed of a first resin composition whose main component is a polyolefin resin, and
• the cutting strip comprises:
• a cutting strip body consisting of a single layer formed of a second resin composition whose main component is the polyolefin resin;
• and
• a peelable layer layered on at least a part of at least a surface of the cutting strip body facing the second base strip, the peelable layer being formed of a third resin composition having peelability with respect to the polyolefin resin.

A zipper-tape-attached bag comprising:

• a bag body having a first surface and a second surface opposite from each other;
• a zipper tape body comprising:
• a first base strip bonded to the first surface;
• a second base strip partially facing the first base strip and having a region not facing the first base strip, the region including a bonding portion bonded to the first surface;
• and a first engagement portion and a second engagement portion being mutually engageable and projecting from the first base strip and the second base strip, respectively;
• and
• a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip, wherein
• the zipper tape body is formed of a first resin composition whose main component is a polyolefin resin, and
• the cutting strip consists of:
• a cutting strip body formed of a second resin composition whose main component is the polyolefin resin, and bonded to the first surface;
• and
• a peelable layer layered on at least one part of at least an opposite surface of the cutting strip body from a surface of the cutting strip body bonded to the first surface, the peelable layer being formed of a third resin composition having peelability with respect to the polyolefin resin.

A zipper-tape-attached bag comprising:

• a bag body having a first surface and a second surface opposite from each other;
• a zipper tape body comprising:
• a first base strip bonded to the first surface;
• a second base strip partially facing the first base strip and having a region not facing the first base strip, the region including a bonding portion bonded to the first surface;
• and a first engagement portion and a second engagement portion being mutually engageable and projecting from the first base strip and the second base strip, respectively;
• and
• a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip, wherein
• the zipper tape body is formed of a first resin composition whose main component is a polyolefin resin, and
• the cutting strip comprises:
• a cutting strip body consisting of a single layer formed of a second resin composition whose main component is the polyolefin resin, and bonded to the first surface;
• and
• a peelable layer layered on at least one part of at least an opposite surface of the cutting strip body from a surface of the cutting strip body bonded to the first surface, the peelable layer being formed of a third resin composition having peelability with respect to the polyolefin resin.