There is provided a slide fastener and a method for manufacturing a slide fastener. A slide fastener is provided with: a pair of fastener tapes; a pair of fastener element rows provided respectively on the opposing tape-side edges of the pair of fastener tapes and having a plurality of fastener elements; and a slider configured to engage and disengage the pair of fastener element rows with and from each other. Each of the fastener element rows is composed of a monofilament which is made of synthetic resin. The monofilament has, on the surface thereof, a surface layer which can be colored with dyes. A roughened surface having a number of concaves is formed on the surfaces of the surface layer.

There is provided a slide fastener and a method for manufacturing a slide fastener. A slide fastener is provided with: a pair of fastener tapes; a pair of fastener element rows provided respectively on the opposing tape-side edges of the pair of fastener tapes and having a plurality of fastener elements; and a slider configured to engage and disengage the pair of fastener element rows with and from each other. Each of the fastener element rows is composed of a monofilament which is made of synthetic resin. The monofilament has, on the surface thereof, a surface layer which can be colored with dyes. A roughened surface having a number of concaves is formed on the surfaces of the surface layer.

An invisible zipper head assembly structure includes a sliding member and a pulling member. The sliding member has a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, an elastic component, and a retaining body. The retaining body has a positioning portion passing through a positioning through hole of the seat portion. The pulling member is movably mated with the retaining body. The thickness of the first lateral wall portion is smaller than the thickness of the second lateral wall portion. The first symmetric center line of the base portion passes through a geometric center point of the positioning through hole, and the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line by horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion.

An invisible zipper head assembly structure includes a sliding member and a pulling member. The sliding member has a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, an elastic component, and a retaining body. The retaining body has a positioning portion passing through a positioning through hole of the seat portion. The pulling member is movably mated with the retaining body. The thickness of the first lateral wall portion is smaller than the thickness of the second lateral wall portion. The first symmetric center line of the base portion passes through a geometric center point of the positioning through hole, and the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line by horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion.

A switch clasp has a first part and a second part. The second part has a first set of zip teeth and the first part has a complementary set of zip teeth. A sensor is responsive to engagement and disengagement of the first and second parts to switch from a first condition to a second condition and a signal corresponding to the condition is output. The sensor includes a first section of conductive track connected to a first conductive tooth of the set of zip teeth and a second section of conductive track connected to a second conductive tooth of the complementary set of zip teeth. The zip pull connects the first conductive tooth to the second conductive tooth to electrically connect the first section of conductive track to the second section of conductive track when connecting the set of zip teeth to the complementary set of zip teeth.

An aluminum alloy fastening member has a novel chemical includes conversion coating as a colored coating, a fastener chain. A method producing the aluminum alloy fastening member. The aluminum alloy fastening member includes a chemical conversion coating containing manganese as a component element, and the chemical conversion coating satisfies hue ranges of 3a*12, 5b*35, and 45L*80 in a CIELAB color space as defined by JIS Z 8781-4 (2013).

An aluminum alloy fastening member has a novel chemical includes conversion coating as a colored coating, a fastener chain. A method producing the aluminum alloy fastening member. The aluminum alloy fastening member includes a chemical conversion coating containing manganese as a component element, and the chemical conversion coating satisfies hue ranges of 3a*12, 5b*35, and 45L*80 in a CIELAB color space as defined by JIS Z 8781-4 (2013).

A slide fastener has a first region in which one width-directional end of a first fastener tape and one width-directional end of a second fastener tape are buckled in an arch shape and brought into close contact with each other when first and second element rows mesh with each other, and second regions in which the one width-directional end of the first fastener tape and the one width-directional end of the second fastener tape are configured to be separated from each other.

A slide fastener has a first region in which one width-directional end of a first fastener tape and one width-directional end of a second fastener tape are buckled in an arch shape and brought into close contact with each other when first and second element rows mesh with each other, and second regions in which the one width-directional end of the first fastener tape and the one width-directional end of the second fastener tape are configured to be separated from each other.

A zipper structure for a seat slide rail capable of preventing foreign matters comprises an upper rail and a lower rail; the upper rail and the lower rail are in sliding fit; zipper heads movably connected to the upper rail are respectively arranged at the two ends of the upper rail; two sets of dustproof rubber covers are fixedly arranged at the upper end of the lower rail; the two sets of dustproof rubber covers are respectively arranged on the two sides of the lower rail; a sewn elastic cloth is arranged between the dustproof rubber covers and the lower rail; one side of the sewn elastic cloth is fixedly connected to the dustproof rubber covers, and zipper racks are arranged on the other side of the sewn elastic cloth; the two sets of zipper racks are respectively communicated with the zipper heads; and when the zipper heads slide, the two sets of zipper racks are meshed with each other or separated from each other.