摘要:
An incorporated slide fastener that is incorporated simultaneously with the weaving of the fastener tape for a zigzag-type continuous element row. The weft yarn of the fastener tape is woven with one thread traversing and doubling back in the tape width direction, forming a set of two threads. Fastener elements have: engaging heads; first and second leg portions that each extend in the width direction of the tape; first connecting portions that connect first legs that are adjacent in the longitudinal direction of the tape; and second connecting parts that connect second legs that are adjacent in the longitudinal direction of the tape. Of the two yarns configuring the weft yarn, one yarn is woven diagonally straddling the first surface of a first leg and the second surface of a second leg of adjacent fastener elements.
摘要:
String core-free invisible zipper structure including a pair of zipper belts and zipper teeth windingly extended and continuously lengthwise sewn along the inward folded edge of each zipper belt. Each zipper tooth has an upper and a lower leg sections and a head section. The gap between the upper and lower leg sections of the zipper tooth is gradually converged from the head section of the zipper tooth to the heels of the upper and lower leg sections, whereby the extensible tolerance of the connecting section between the upper and lower leg sections of adjacent zipper teeth is reduced and the deformation of the zipper teeth caused by lateral pull is reduced. Therefore, the zipper teeth have sufficient buckling strength and the possibility of disengagement of the zipper teeth is minimized. Therefore, the string core passing through the zipper teeth is no more necessary for reinforcing the anti-pull strength of the zipper teeth.
摘要:
Method and device for manufacturing string core-free invisible zipper. Without string core, the molded zipper racks are separately and directly loosely reversely fed into the needle seat of the machine. The fabric belts are at the same time fed into the needle seat for sewing the zipper racks thereon. Prior to feeding the racks into the needle seat, it is not necessary to use a rack separating bar to forcedly stretch open the two racks. Accordingly, the zipper racks are prevented from being tensioned and deformed or curled and the pitch will be unified. The slider can more smoothly slide without being obstructed. The teeth of the racks can more firmly mesh with each other.
摘要:
A multi-needle zipper tape stitching mechanism includes a bottom needle plate having two parallel guide grooves for the passing of two chains (rows of teeth, a guide plate with two needle holes mounted on the bottom needle plate, a guide bar for guiding two zipper tapes over the chains being delivered through the bottom needle plate, an upper needle plate covered on the bottom needle plate and defining with the bottom needle plate two zipper tape passage ways for the passing of the zipper tapes and the chains, and two stitching needles reciprocated through respective needle holes on the upper needle plate and the needle holes on the guide plate to fasten the chains to the zipper tapes with three lines of stitches respectively, the stitching needles each having three needle rods arranged in parallel and spaced from one another at a different pitch, the needle rods each having a point and an eye on the point for the insertion of a respective thread.
摘要:
A holes whereby the frame is adapted for receipt of foundation warp yarns of a fastener tape. A mandrel projects from the frame for shaping a thermoplastic resin monofilament into a fastener element. An anchoring-weft-yarn carrier bar and a foundation-weft-yarn carrier bar are both disposed below the mandrel. The apparatus also has a rotor with a monofilament guide hole wherein the rotor is revolvable or rotatable about the frame. An anchoring-warp-yarn heddle is disposed above the core cords and a foundation-warp-yarn heddle is disposed below the core cords. A hook lever is vertically movable and disposed before the foundation-weft-yarn carrier bar for pushing the outer core cords downward.
摘要:
Disclosed is a woven slide fastener including a row of fastener elements composed of a flat coil formed of a continuous monofilament, and a slide fastener tape having the row of fastener elements woven into a longitudinal side edge thereof. Each fastener element includes a coupling head and upper and lower leg portions joined thereto. Binding warp threads extend along the upper and lower sides of the fastener element row and are woven into the tape along with other warp threads and a weft thread to form a portion where the tape and fastener element row are mutually interwoven, thereby maintaining the perpendicularity of the leg portions with respect to the tape, the stability of the spacing between mutually adjacent ones of the fastener elements, and the smoothness with which the row of fastener elements is coupled with an opposing row of fastener elements.
摘要:
A slide fastener stringer comprises an elongate molded coupling element strip woven into a stringer tape along a longitudinal edge thereof. The strip includes a succession of laterally spaced coupling elements each having a pair of first and second legs, and a pair of series of first and second connecting portions extending respectively between alternate pairs of the first legs and between alternate pairs of the second legs in staggered relation with each other. A pair of connector threads is partially embedded in the first and second legs, respectively, of each coupling element and extends parallel to the first and second connecting portions, respectively, on the head side of the coupling elements. Each of the coupling elements has a pair of grooves extending transversely through a pair of first and second legs, respectively, on their outer sides, and disposed remotely from the connecting portions and from the connector threads. A pair of anchor threads is disposed in the grooves in the first legs and the grooves in the second legs, respectively, along the full length of the strips. A weft thread of the tape has a plurality of loops each encircling one of the first and second connecting portions, the connector threads, and the anchor threads between adjacent coupling elements, the weft loops being held out of contact with the connector threads.
摘要:
A method of heat setting spaced fastener elements on a fastener chain includes contracting a formed thermoplastic wire constituting the fastener elements, while heating the fastener chain to which the formed wire is affixed, until the pitch of the fastener elements attains a predetermined value smaller than the value of a desired pitch and subsequently cooling the formed wire while the wire is stretched to provide the desired element spacing. Apparatus for practicing the method includes a rotated heating wheel having circumferential teeth the pitch whereof is less than the desired element pitch in order to engage and contract the formed thermoplastic wire while the fastener chain bearing the wire is heated, a rotated cooling wheel having circumferential teeth the pitch whereof is equal to the desired element pitch in order to engage and stretch the molded wire while the fastener chain, received from the heating wheel, is cooled, and means for heating the fastener chain as the chain traverses the outer periphery of the heating wheel.
摘要:
A slide-fastener stringer has a tape formed from a ground weave with double wefts interwoven with a warp and a coupling element disposed along the edge of the tape and held thereto by binding warps. The coupling element is of the type in which a synthetic resin monofilament is coiled to form coupling heads whose shanks are disposed one above the other so that they have a common projection in the slide fastener plane. The shanks are connected to those of successive heads by bights. The coupling warp comprises a plurality of warp yarns whose patterns are offset lengthwise by at least one pick and which each passes over two coupling elements, between the next coupling element and a ground double weft and under a double weft between coupling elements in a repeating pattern. Double weft disposed between consecutive coupling members are drawn upwardly beyond the median plane of the coupling element as ground-weft padding loops.
摘要:
A slide fastener stringer includes a stringer tape having a pair of opposite surfaces, and a series of fastener elements attached to the stringer tape on one of the surfaces thereof along its one longitudinal edge by use of single needle double locked stitches composed of a needle thread and a looper thread. The needle thread includes a monofilament yarn having a coefficient of thermal contraction, and the looper thread includes a spun or multifilament yarn. The stitching is accomplished from the tape side of the slide fastener stringer. The needle thread, after stitching is heat set to shrink it and make it dimensionally stable.