Disclosed herein is a fastening structure which enables objects to be easily removeably coupled, and enables a smooth slideable coupling and decoupling. The fastening structure includes a male and female component. The male component is cross shaped with a wing member and cross bar member. The female component has a complementary structure with an elongate slot and cross groove, such that the male component is slideably received and mated.

Provided is a zipper tape including: a first member including a first base strip and a first engagement portion, the first engagement portion protruding from the first base strip; and a second member including a second base strip and a second engagement portion, the second engagement portion protruding from the second base strip and being engageable with the first engagement portion. A minimum gap between the first member and the second member is less than or equal to 1.1 mm, the minimum gap being based on when the first base strip and the second base strip are opposed to each other and the first engagement portion and the second engagement portion are engaged with each other.

A slider garage includes an overmolded body, the overmolded body oriented on a zipper, the overmolded body including an overmolded male portion and an overmolded female portion, the overmolded male and female portions positioned on an end of the zipper, such that each is on one side of the zipper, the overmolded male portion being shaped such that it fits in the overmolded female portion in a watertight fashion and the overmolded body is molded over a portion of the zipper.

A slider garage includes an overmolded body, the overmolded body oriented on a zipper, the overmolded body including an overmolded male portion and an overmolded female portion, the overmolded male and female portions positioned on an end of the zipper, such that each is on one side of the zipper, the overmolded male portion being shaped such that it fits in the overmolded female portion in a watertight fashion and the overmolded body is molded over a portion of the zipper.

There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, 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. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.

There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, 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. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.

A tape having a cross sectional profile including first and second thick portions and a thin portion provided between the first and second thick portions is provided. The first and second thick portions and the thin portion are made of a resin composition whose main component is polyethylene. The density of at least a part of the thin portion is higher than a density of the first and second thick portions.

A tape having a cross sectional profile including first and second thick portions and a thin portion provided between the first and second thick portions is provided. The first and second thick portions and the thin portion are made of a resin composition whose main component is polyethylene. The density of at least a part of the thin portion is higher than a density of the first and second thick portions.

A tape includes, in a cross-sectional shape: a first and a second portion which are configured to be at least partially in opposition. The first portion includes: thick portions provided in corresponding one of a first and a third region, out of the first, a second, and the third region in a width direction of the tape; a first and a second thin portion provided at respective both end portions, in the width direction, of the second region positioned between the first and the third region; and at least one intermediate portion provided between the first and the second thin portion. The second portion includes: thick portions provided in corresponding one of the first and the third region and extending beyond end portions, in the width direction, of the second region; and at least one third thin portion provided in the second region and opposed to the intermediate portion.

The present disclosure discloses a zipper comprising two zipper tapes and a zipper puller. The two zipper tapes are fastened or separated at the same time via the zipper puller; each zipper tape includes a fixing seat, a side barrier strip and a barbed strip, wherein the side barrier strip and the barbed strip are integrally formed on one side of the fixing seat, a slot is formed between the side barrier strip and the barbed strip, the barbed strip on one set of zipper tape fits into the slot on the other set of zipper tape, the end of the barbed strip away from the fixing seat is provided with barbs, the slot is provided with barb grooves, and the barbs on one set of zipper tape fit into the barb grooves on the other set of zipper tape. The present disclosure further reduces the production cost of zippers.