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. Optionally, the zipper includes a male side and a female side, and the overmolded male portion is positioned on the male side of the zipper and the overmolded female portion is positioned on the female side of the zipper.

A zipper tape is in an elongated shape and includes, in a cross-sectional shape, a pair of base strips and engagement portions projecting from surfaces facing each other of the pair of respective base strips, the engagement portions being engageable with each other. At least the engagement portions are each formed of a first biodegradable resin composition having a yield strain of 3.4% or more during a tensile test.

A zipper tape is in an elongated shape and includes, in a cross-sectional shape, a pair of base strips and engagement portions projecting from surfaces facing each other of the pair of respective base strips, the engagement portions being engageable with each other. At least the engagement portions are each formed of a first biodegradable resin composition having a yield strain of 3.4% or more during a tensile test.

A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ΔH.sub.120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.

A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.

A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ΔH.sub.120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

A zipper assembly is provided that may be coupled to a resealable enclosure. The zipper assembly may include flanges having opposite interior and exterior surfaces. The exterior surfaces of the flanges may be coupled with one or more films of the enclosure. The zipper assembly also may include locking members protruding from the flanges. The locking members may mate with each other to close the enclosure and to separate from each other to open the enclosure. The flanges and the locking members may be formed from a non-common material and a common material.