摘要:
In a method of manufacturing a woven zipper half a woven strip is produced of warp threads and of at least one weft thread. The weft thread is picked in the form of double pick loops. A plastic monofilament is wound to form a row of closing member-forming windings having interlocking heads at one end and winding reversing portions at the other end, wherein the closing member row is positioned on the woven strip. Additional warp threads are positioned underneath the closing member row. During weaving, at least one main knit thread is guided in the upward direction through gaps between the windings to the upper side of the closing member row to form loops with loop heads. The loop heads of the at least one main knit thread at the upper side are interlocked by crocheting. The loop heads, after crocheting, form a mesh structure covering portions of the upper side of the closure member row and interlock the closure member row with the woven strip. Simultaneously to interlocking of the loop heads at the upper side, double pick loops of the loop-shaped main knit thread are formed and the double pick loops are interlaced during weaving with the additional warp threads, and, moreover, the main knit thread is used as a weft thread in the woven strip underneath the closing member row.
摘要:
A method and an apparatus for manufacturing a woven slide fastener stringer wherein synthetic resin fastener elements in the form of a continuous spiral are formed at the same time that the fastener tape is woven. In the method, the monofilament for forming the fastener elements is advanced toward a hook on one side of warp bunches from the other side thereof, engaged on the hook at the advanced position and guide into a fell via the one side of the warp and is thereafter deformed into a loop shaped fastener element. The apparatus includes a carrier for advancing the monofilament across the warp bunches and a swinging arm swingably positioned at one side of the warp bunches. The swinging arm includes the hook for engaging the monofilament for forming fastener elements and is swingable between a first position wherein the hook is situated at one side of a fell and a second position wherein the hook is remote from the fell. The monofilament is passed through the carrier and is advanced to the position where it engages the hook when the swinging arm is in the second position.
摘要:
A woven slide fastener stringer comprises a row of filamentary coupling elements fastened to a stringer tape by a binding thread system composed of weft and warp threads intertwined with the coupling elements and the stringer tape. At leat a pair of warp threads symmetrically overlie and underlie upper and lower legs of the coupling elements and cross each other between adjacent coupling elements. The weft threads of the binding thread system are interlooped with the symmetrically running warp threads at the upper and lower legs of the coupling elements. With such an arrangement, coupling heads connected to the coupling element legs are disposed substantially perpendicularly to the plane of the stringer tape for increased coupling strength necessary to keep opposite rows of coupling elements securely interengaged against accidental separation. An apparatus for manufacturing such a woven slide fastener stringer includes independent heddles and filling inserters for supplying warp and weft threads of such a binding thread system.
摘要:
A method of making a slide-fastener stringer in which a continuously woven tape and a coupling element interwoven with the tape are formed continuously and the coupling elements of the resulting continuous web are gapped to permit insertion of the slider onto the web which can then be subdivided into individual slide-fastener stringers. According to the invention, weft yarns pass beneath the bight connecting the coupling members of the continuous coupling element and over warp yarns which are thereby held over the shanks of the coupling members by these wefts so as to be drawn away from the bights and so as to lock the warp yarns thus bunched together preventing them from raveling upon gapping of the web.
摘要:
An apparatus for manufacturing woven slide fastener stringers comprises means for shedding a plurality of warp threads, a coiling mechanism for coiling a monofilament of synthetic resin around a mandrel in a conical orbit to form a series of coiled coupling elements and a weft inserter reciprocable across the warp shed and the conical orbit for inserting a weft thread into the warp shed, by which the coiled coupling elements can be woven into a stringer tape along a longitudinal edge thereof as the tape is woven of the warp and weft threads. The weft inserter includes an arm which when the weft thread is inserted is engageable with the monofilament to displace the latter out of the path of insertion of the weft thread so that the weft thread can be inserted smoothly without being frictionally engaged by the monofilament.
摘要:
An apparatus for producing a woven slide fastener stringer includes a loom for weaving a stringer tape and a rotor assembly for coiling an element-forming monofilament around a mandrel to form a coiled coupling element, which is then woven into the stringer tape along a longitudinal edge thereof. The rotor assembly comprises a rotor rotatably mounted eccentrically on a stationary shaft, and having a guide hole for passage therethrough of the monofilament and a pin angularly spaced 180 degrees from the guide hole and slidably received in a radial slot in a radial arm to which there is drivingly connected a drive gear rotatably mounted on the stationary shaft. When the drive gear rotates, the guide hole rotates at a reduced angular velocity as it approaches the loom, thereby allowing harnesses for warp threads which bind the coupling element to be moved across the orbital path for the monofilament without interference.
摘要:
A slide fastener comprises two continuous plastic filaments, each with a multiplicity of helicoidal coupling elements for interlocking with the elements of the opposite filament, each filament being woven integral with the threads of its respective support tape to form a single tape-like unit. Each coupling element has a coupling head on a loop end and a long shank and a short shank extending from opposite sides of the loop end. The long shank terminates in a first bight portion connecting it with a long shank of one adjacent coupling element, while the short shank terminates in a second bight portion connecting it with a short shank of another adjacent coupling element. The coupling elements are arranged in rows of mirror-image pairs, each including two long shanks and two short shanks. Warp threads are interwoven with the coupling elements, with even stronger bracing possible with bulbous projections on the long shanks, short shanks, first bight portions or second bight portions using textile weft threads.
摘要:
In a slide fastener a helicoidally wound filament of synthetic resin having laterally extending coupling heads is interwoven with a stringer tape of primary warp and weft threads by a heavier secondary weft thread which passes over generally longitudinally extending root portions of the helicoid interconnecting successive loops thereof. The secondary weft threads, whose throw is substantially limited to the width of the helicoid, may consist of heat-shrinkable material and are anchored to the tape by being interwoven with secondary warp threads heavier than the primary warp threads. The interweaving involves use of a lower and an upper bobbin for the primary and secondary wefts, shedding of the secondary warp threads above and below a central level at which the helicoid is maintained, and shedding of the primary warp threads solely below the central level.
摘要:
A method of weaving two separate tape parts of a slide fastener and apparatus therefor wherein the two tape parts comprising warp and weft threads are woven on a needle loom and are positioned one above the other. A continuous thermoplastic monofilament is interlaced between the tape parts to from meandering strands sections uniformly spaced apart and in uniform length, these sections being subsequently deformed, embossed, and molded into fastening links of the tapes. After folding and molding, the several plies of the tapes may be combined by sewing, adhesion or welding where thermoplastic warp and/or weft fibers are employed to provide a two-ply construction.