SLIDE FASTENER, FASTENER STRINGER AND FASTENER CHAIN PRODUCTION METHOD

摘要

A slide fastener (1) comprising a pair of fastener stringers (2) and a slider (5) for opening and closing the pair of fastener stringers (2). Each fastener stringer (2) comprises a fastener tape (3) and a fastener element (4). The fastener element (4) comprises a monofilament that extends helically along the longitudinal direction of the fastener tape (3). The monofilament has: covered surfaces (48), which are covered by an attachment thread (45) for attaching the fastener element (4) to the fastener tape (3) or by the fastener tape (3); and exposed surfaces (49), which are not covered by the attachment thread (45) or the fastener tape (3). At least one crevice (L1-L5 and D1) is formed on the exposed surfaces (49) so that the glossiness of the exposed surfaces (49) is reduced compared to the glossiness of the covered surfaces (48).