Page 52 - February-March-2020
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                   Fresh looks created by the




                                  fourth dimension




                    The newly configured RDPJ 6/2 EL is opening up new patterning

                      possibilities and market opportunities with 4D-KNIT products

            KARL MAYER has added a new dimension to the       mechanism – and the distance between them is
            third dimension of warp-knitted spacer textiles in the   constant and uniform. Differences in height can only
            shape of new types of fabrics with a wide range of   be produced between one fabric and another. On the
            surface designs. These innovative articles are known   other hand, different fabric heights can be produced
            as 4D-KNIT. Their relief-like designs on both sides are   over the entire surface when producing 4D-KNIT
            rather unconventional, extravagant and diverse for   textiles, and the differences in height can be used to            have produced a cover for office chairs with the side   adjustable knockover comb bar distance, this
            warp-knitted fabrics, and are enabling KARL       create the patterns. Pronounced relief-like designs                  wings, seat panel and seat back made almost      machine is a good, all-round machine. With a
            MAYER’s customers to expand their business areas.   are produced, which are stabilised by using bulky                  entirely in a single piece. The fabric perfectly matches   distance of 1.5 to 2.5 mm, 4D-KNIT items and
            KARL MAYER is meeting demand by developing        yarn to create a cushioning effect.                                  the geometry of the seat, and is extremely       double-layered fabrics can be produced and, at a
            4D-KNIT. “We ran with an idea from the market and                                                                      hardwearing. It can withstand 20,000 abrasion cycles   distance of between 2.0 and 8.0 mm, conventional
            optimised it,” says Takayama Hirokazu, the Senior   Three-dimensional patterns, openwork designs,                      in a stress test without being damaged. Depending   spacer textiles can be produced - and jacquard
            Director of NIPPON MAYER, the centre of excellence   semi-made-up goods and much more besides                          on the pattern and type of yarn used, the fabric   patterns can also be worked. This wide range of
            for double-bar raschel technology within the      The special look of 4D-KNIT textiles is based on 3D                  weight can be adapted to suit the intended end-use.   patterns minimises the investment risks.
            company group. A higher production rate is the main   motifs, whose shape, height and location can all be              KARL MAYER has pro- duced patterns with fabric
            improvement. Compared to other technologies used   varied. The relief-like, permanently stable elements                weights ranging from roughly 370 g/m² to just under   Optimism before the sales launch
            to produce fabrics with a similar appearance, warp   can be combined to produce creative designs.                      500 g/m². The lower limits are created by the    This innovative, double-bar raschel machine should
            knitting can deliver a higher production rate. Trials   Extensive processing trials carried out at NIPPON              threedimensional effects. “The three-dimensional   go into production in the fourth quarter of 2019. Kay
            with producing shoe fabrics clearly show the      MAYER show just what can be achieved here. The                       look is lost if we use too little yarn or if the filler yarn is   Hilbert, the Head of Product Portfolio Management at
            differences here. Whereas textiles for 200 pairs of   pattern developers and specialist technologists in               too fine,” explains Oksana Wizechowski. This product   KARL MAYER, is optimistically looking forward to the
            shoes can be produced per hour using double- bar   Japan closely studied the possibilities offered by the              developer was involved in the extensive processing   sales launch. The newly configured RDPJ 6/2 EL and
            raschel technology, flat weft knitting machines can   newly configured RDPJ 6/2 EL, and have developed                 trials over a period of several months at NIPPON   selected 4D-KNIT items were on show at the last
            only produce enough for 1.5 pairs of shoes over the   more than 50 patterns over the last two years. The               MAYER. The importance of finishing became clear as   ITMA in Barcelona, and were a highlight of KARL
            same time period. The new configuration of the RDPJ   designs include strict, geometric arrangements with              the work progressed. The bulky yarns only reveal   MAYER’s stand. “News of our new development
            6/2 EL double-bar raschel machine is the reason   high/low effects, as well as sweeping,                               their voluminosity to create the shape of the relief   quickly spread around the fair. Even yarn producers
            behind its high productivity and the unique       three-dimensional wavy designs, bright fruit patterns                structures when the textile is relaxed and heat is   had heard about the 4D-KNIT and came to learn
            appearance of the fabric. The modified version    and complex, imaginative designs having different                    applied.                                         more about it on our stand,” says Kay Hilbert. He and
            enables textile constructions to be produced that are   height profiles. Openwork patterns can also be                                                                  his team discussed many interesting projects with
            completely different to the conventional constructions   integrated seamlessly into the textiles. These are in         Well-thought-out machine technology              the visitors. Some of the visitors seemed very keen to
            typical of 3D warp-knitted textiles.              especially high demand as breathable zones in                        This new version of the RDPJ 6/2 EL is available in a   invest, and they discussed ideas for new
                                                              functional clothing and shoes. Contrasting,                          gauge of E 24 and a working width of 138". Its   applications. So far, the end-uses for the lightweight
            High/low effects make all the difference          two-colour effects can also be produced by the types                 exceptional patterning possibilities are based on an   fabrics have targeted the outerwear and activewear
            Conventional warp-knitted spacer textiles are made   of yarn used. In addition to these interesting patterns,          intelligent technical configuration and the      sectors and, for the heavier fabrics, they have been
            from two cover faces with a pile layer made from   important elements, such as cut edges, can be                       wellthought- out design of the knitting elements,   aimed at the automotive, home textiles, shoe and
            monofilament yarns between them. The two sides of   integrated for further processing, and                             combined with KARL MAYER’s tried-and-tested piezo   mattress sectors. However, it quickly became evident
            the fabric can be patterned – if the double-bar   near-netshaped products can be produced. For                         jacquard technology. The machine also features the   from the conversations being held at the fair that the
            raschel machine used is equipped with a jacquard   example, the product developers at KARL MAYER                       manufacturer’s new LED lighting concept. With its   market potential goes much further.

                February/March 2020                                                                                                                                                                       January/February 2020





                                                                                                                                                   KARL MAYER’s LONG CHAIN BEAMER
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