Abstract: An airtight type zipper according to an embodiment of the present disclosure includes a first zipper member in which first zipper protrusions and first zipper grooves are alternately and continuously formed and a second zipper member coupled to or separated from the first zipper member in a sliding manner, and includes a first closely joined rail formed to be protruded in a continuous direction of the first zipper protrusion and the first zipper grooves and a second closely joined rail formed to be protruded from the first closely joined rail in a shape corresponding to the first closely joined rail, and in which a first closely joined groove and a second closely joined groove, that are mutually coupled to the first closely joined rail and the second closely joined rail when coupled with the first zipper member, are formed in the second zipper member.

Abstract: An airtight type zipper according to an embodiment of the present disclosure includes a first zipper member in which first zipper protrusions and first zipper grooves are alternately and continuously formed and a second zipper member coupled to or separated from the first zipper member in a sliding manner, and includes a first closely joined rail formed to be protruded in a continuous direction of the first zipper protrusion and the first zipper grooves and a second closely joined rail formed to be protruded from the first closely joined rail in a shape corresponding to the first closely joined rail, and in which a first closely joined groove and a second closely joined groove, that are mutually coupled to the first closely joined rail and the second closely joined rail when coupled with the first zipper member, are formed in the second zipper member.

Abstract: A sealing zipper according to an embodiment includes a first chain portion, a second chain portion, a chain fixing portion, and a watertight portion. The second chain portion is coupled to the first chain portion. The chain fixing portion is coupled to one end portion of the first chain portion and one end portion of the second chain portion. The watertight portion is positioned between the first chain portion and the second chain portion and disposed to be partially inserted into the chain fixing portion.

Abstract: A multi airtight type rail zipper may be attached to or installed on a flexible material, such as an envelope, for storing an object. The multi airtight type rail zipper includes a first zipper rail, a second zipper rail formed in a shape corresponding to that of the first zipper rail, and a slider provided to surround the first zipper rail and the second zipper rail such that, according to the direction of sliding movement, the first zipper rail and the second zipper rail engage with and are fastened to each other, or disengage and are unfastened from each other. The multi airtight type rail zipper can improve the sealing force by the more stable fastening structure.

Abstract: A sealing zipper according to an embodiment of the present invention includes a first chain portion, a second chain portion coupled to the first chain portion, a chain fixing portion coupled to one end portion of the first chain portion and one end portion of the second chain portion, and a watertight portion positioned between the first chain portion and the second chain portion and disposed to be partially inserted into the chain fixing portion.

Abstract: A multi airtight type rail zipper may be attached to or installed on a flexible material, such as an envelope, for storing an object. The multi airtight type rail zipper includes a first zipper rail, a second zipper rail formed in a shape corresponding to that of the first zipper rail, and a slider provided to surround the first zipper rail and the second zipper rail such that, according to the direction of sliding movement, the first zipper rail and the second zipper rail engage with and are fastened to each other, or disengage and are unfastened from each other. The multi airtight type rail zipper can improve the sealing force by the more stable fastening structure.