Abstract: A fabric in a tubular shape is provided suitable for slipping over an expansible member which can be filled with fluid to thereby expand the expansible member and the tubular shape of the fabric, the fabric being expansible by at least 200% and having a uni-directional recovery force to provide the force to dispense the fluid from the expansible member, the fabric being made of elastomer yarn providing the recovery force and yarn in engagement with the elastomer yarn to maintain the fabric position of the elastomer yarn so as to prevent blow out of the expansible member between the yarn of the fabric during expansion of the expansible member.

Abstract: A slide-fastener support tape is formed with a Raschel knitting machine having a pair of needle bars. A relatively thin first warp yarn is chained with both of the needle bars to form a longitudinally extending double wale. A plurality of relatively thin second warp yarns are chained with only one of the needle bars into an array of longitudinally extending and transversely spaced single wales spaced by a gap from the double wale. A relatively thick warp yarn is blind lapped into this gap and is held thereon on one side by a weft yarn lapped by one of the needle bars between the double wale and the single wale at the edge of the array and on the other side by another weft yarn lapped by the other needle bar between the double wale and the edge single wale. In addition a plurality of weft yarns are laid into the single wales.

Abstract: A double-velour vascular graft has a tubular body or trellis with loops projecting both outwardly and inwardly from said trellis. The loops on both the inner and outer surfaces of the trellis provide for more effective preclotting and ingrowth of tissue without impeding the flow of blood through the tubular body. The graft is produced on a double-needle bar warp-knitting machine using two outside beams and two inside beams, the beams feeding yarn for the loops to said knitting machine at a greater rate than the beams feeding yarn for the trellis.

Abstract: Two or more warp-knitted members of a tubular or cylindrical shape are interconnected by a connecting thread to provide reinforcement to be inserted longitudinally in a row of helically coiled fastener elements. The tubular warp-knitted members may be wrapped around core members. A choice is available of diameters of the warp-knitted members so as to be compatible with the particular shapes and contours of given fastener elements. A plurality of warp-knitted members are interconnected in such a fashion that the resulting reinforcement can be adapted for securing a relatively large-size fastener element onto the tape.

Abstract: A sliding clasp fastener stringer is disclosed which comprises a warp-knit support tape carrying a row of interlocking fastener elements, said tape having a web portion of a relatively coarse interstice structure suitable for stitching the tape to an article of clothing, and a longitudinal edge portion formed solely by knit-loop forming threads suitable for mounting the row of fastener elements stably into position thereon against displacement relative to the tape. The web portion and the edge portion are interconnected transversely by a connecting portion which is formed by threads merging from both of said portions and which has a relatively fine interstice structure.

Abstract: A support tape for a slide-fastener stringer half is knitted on a Raschel knitting machine having a pair of needle bars. This tape has a pair of longitudinally extending edges and a pair of opposite faces and is knit with an intermediate warp yarn that is spaced from the edges and knit with both needle bars to form a longitudinally extending double wale that projects on both faces of the tape and subdivides the tape transversely into an attachment strip and an edge strip. A plurality of first warp yarns in only the attachment strip are knit with one needle bar and form a plurality of longitudinally extending single wales projecting only on one face of the tape, and a plurality of second warp yarns in only the edge strip are knit with the other needle bar and form a plurality of longitudinally extending single wales projecting only on the other face of the tape. A multiplicity of weft yarns are laid into the warp yarns and each extend transversely over at least one of the wales.

Abstract: A fastener stringer comprises a warp-knit tape and a row of interlocking fastener elements secured thereto. The tape has a web portion formed by chain stitches defining longitudinally extending wales, tricot stitches extending diagonally across and between a plurality of adjacent wales, and laid-in weft threads extending over and connecting every four wales. The tape also has a longitudinal edge portion consisting solely of knit-loop forming threads. Both of the portions are interconnected transversely of the tape by threads constituting the web portion and edge portion, respectively. One of the wales adjacent the longitudinal edge portion is biased toward the web portion to widen an interwale valley between the above-mentioned one of wales and its neighboring wale.

Abstract: A slide fastener stringer tape comprising a major region made of a knitted fabric with an open, net-like texture, and a relatively narrow scoop-carrying region made of a warp-knitted fabric. The major tape region is longitudinally subdivided into several subregions of progressively finer mesh size from the one lying along one of its longitudinal edges to the one lying along the other longitudinal edge. The scoop-carrying region is arranged next to and along the finest mesh subregion of the major tape region, for supporting thereon a row of scoops of any desired type.

Abstract: A slide fastener of the concealed or masked type comprises a pair of opposed support tapes each having a longitudinal edge portion folded on itself and rows of interlocking fastener elements secured to the folded edge portions of the respective support tapes. The tape is made of a warp-knit fabric having on one surface a multiplicity of alternate wales and interwale grooves. A particular wale disposed close to the path of a sewing needle is formed with fewer knit threads than the remaining portions of the tape to reduce the loop density thereat and hence renders this wale portion flexible to permit the tape to yield itself to the sewing pressure.

Abstract: A slide fastener stringer tape of a warp-knitted structure is disclosed which is adapted for mounting thereon a row of interlocking fastener elements. The warp-knitted stringer tape has the interwale groove at the tape edge along and through which a line of element-sewing stitches passes. The interwale groove is defined between the outermost wale and an adjoining wale and is provided therein solely with tricot sinker loops which connect these wales together in each course. This arrangement is such that the sewing needle can be directed to and through any optional position of the interwale groove without having regard to the position of the courses.

Abstract: A warp knitted fabric with surface interest patterning is formed from full sets of warp threads of yarn. The surface interest patterning is continuous throughout the length of the fabric and includes groups of wales, each group being separated from adjacent wales by exaggerated spacing. Three different methods for obtaining the surface interest patterning on a two-bar single needle bed warp knitting machine are disclosed.

Abstract: A warp-knitted fabric having a plurality of seams disposed at predetermined intervals in a transverse direction of the fabric and extending longitudinally of the fabric. Water-soluble fibers or threads soluble at a first temperature join alternate ones of the seams and water-soluble fibers or threads soluble at a second temperature higher than the first temperature join the remaining seams. The water-soluble fibers or threads may be of polyvinyl alcohol.

Abstract: A knitted yarn and a method for knitting the yarn. The yarn comprises two strands formed into successive stitches alternately disposed about two needle axes. Alternate strands form the successive stitches along each axis. Each stitch on one axis is drawn through a preceding stitch on that axis. As a result, each stitch on each strand passes through an adjacent stitch formed of the other strand.Each stitch in a strand is formed at a single or one of two reciprocating latch needles which pull the newly formed stitches in each strand through preceding stitches in the other strand and cast off the preceding stitches. Then the needles extend to accept the next stitches formed in the strands. The yarn knitting apparatus feeds strands at a controlled rate to service bars which reciprocate and oscillate over the needles to form the stitches at the needles alternately each time the needles reciprocate.

Abstract: A slide-fastener stringer foundation is formed of support tapes which are warp-knit. Two different types of weft filaments are used, one being textured and of limited shrinkability and the other being highly shrinkable. The tape so knitted is heat-shrunk so as to cause the shrinkable yarn to form the textured yarn into a mass of bulges or loops on the surface of the tape, thereby imparting to this tape a very smooth texture.

Abstract: A slide fastener tape of a warp-knitted structure is provided with a web portion and a marginal edge portion extending lengthwise thereof, both portions being interconnected by a relatively strong transversely extending lapping threads. A combination of chain stitches and tricot stitches having alternate closed and open laps is utilized in the formation of the web portion to provide a stable knit structure, while the marginal edge portion is reinforced by double-layer tricot stitches to render this portion uniformly swollen so that the fastener elements can be securely mounted with their legs astride of the swollen edge.

Abstract: A warp-knitted tape for slide fasteners is provided with a web portion and a marginal edge portion extending longitudinally thereof and connected together integrally with a combination of different stitches. The marginal edge portion has two adjacent wales spaced one wale pitch apart to provide thread-free regions for unrestricted passage of sewing needles.

Abstract: A brassiere having breast cups molded from a heat settable, thermoplastic fabric, such as polyester, of warp knit construction and including top, middle and bottom guide bar yarns. The bottom and/or middle guide bar yarns have a denier per filament of at least 10. The stitch construction is particularly selected so that the bottom and middle guide bars run in opposition to each other and each have an underlap length which extends between at least two wales. Preferably, the stitch configuration of the bottom guide bar should be 1-0/1-2 and the middle guide bar should be 1-2/1-0. Alternatively, a stitch configuration of 1-0/2-3 may be employed in the bottom guide bar and 2-3/1-0 in the middle guide bar. The top guide bar primarily controls the aesthetics of the fabric and preferably may have a stitch configuration of 1-0/2-3 or, alternatively, a stitch configuration of 1-0/3-4. The molded bra cups have excellent shape retention properties, especially after repeated washings.

Abstract: A warp-knit tape structure is disclosed for use as a carrier tape for mounting thereon a row of fastener elements. The carrier tape has a web portion and adjoining marginal edge portion extending one longitudinal edge of the tape, said edge portion having a relatively wide interwale groove for the passage of a sewing machine needle and a plurality of wales adjacent to said interwale groove held closely together to provide a reinforced region disposed for sliding contact with a slider of the slide fastener.

Abstract: A stringer for a slide fastener is provided with a warp-knit tape having alternate wales and interwale grooves and a row of fastener elements secured thereto. The element has a recess in one of its legs for receiving a larger wale of the tape. The interwale grooves located on opposite sides of said larger wale are adapted to receive therethrough sewing threads and are widened such that the inner surfaces of the grooves are urged into intimate contact with said one leg under the influence of sewing pressure applied when sewing the element to the tape.

Abstract: Warp knit denim fabrics wherein differentially colored or colorable yarn sets or groups are knit together in a fabric having a dominant, typically darker, color forming a background wherein flecks of a less dominant, typically lighter, color are present substantially uniformly throughout the surface of the fabric, thereby giving a fabric whose visual appearance is similar to woven denim fabrics, but which possesses superior fabric qualities. After knitting, the differentially colorable yarn sets may be dyed to selectively color one or more of the yarn sets. The denim effect may be enhanced by sanding or napping the denim surface of the fabric to abrade and/or break the dominant color yarns and blend the lighter color therewith. The fabric may be thereafter calendered, and finished in conventional manner.

Abstract: A dimensionally stable warp knitted paper maker's felt includes a plurality of interlocked yarns having a weight per unit length equivalent to at least 500 denier. Laid-in yarns and/or resin may be used to impart the desired stability to the felt.

Abstract: This invention relates to a warp knitted elastic fabric composed of alternating non-elastic courses formed from non-elastic yarns and intervening elastic courses formed primarily with elastic thread having a knitted ground construction composed of a plurality of non-elastic threads arranged in one or two systems of warp threads formed into a plurality of wales and courses of single thread stitches. The threads of said system or systems form stitches in adjacent wales in a course and in alternate courses to form the alternating non-elastic course. A plurality of elastic threads arranged in one system of warp threads form a plurality of wales and alternate elastic courses of double elastic thread stitches. Each elastic thread forming a part of two stitches in adjacent wales in a course knitting in the intervening courses when at least half of the non-elastic threads are not knitting.

Abstract: A warp knit two-way stretch fabric is provided by knitting three yarns into two interconnected grids of loops, one grid being of a first inelastic yarn alternating coursewise with elastic yarn to provide a repeat pattern of a plurality of interconnected loops of elastic yarn in alternate wales of the fabric and in the same sets of successive courses and a plurality of interconnected loops of inelastic yarn in intervening wales of the fabric, and the other grid being of a second inelastic yarn. The fabric is preferably made by alternate threading of the first inelastic yarn and the elastic yarn on the back guide bar of the knitting machine and the second inelastic yarn on the front guide bar. The back guide bar performs an underlap of at least two needles at least once in every nine courses in the fabric and the front guide bar moves in opposition to the back guide bar.

Abstract: A Raschel warp knit structure of elastic (12) and non-elastic (10) yarns which produce a two-way stretch fabric. The new and unique feature of this invention is the stitch used to produce the fabric. The stitch consists of two groups of three chain stitches of non-elastic yarn into which is interlaced an elastic yarn. The elastic yarn traverses laterally in its path through the fabric to connect three adjacent wales.