The success of raschel lace
Many factors (outlined in the following list) have contributed to the success of warp knitting in the production of lace, curtain-net and elastic fabrics:
- The inability of the slow, traditional lace and net machines to meet rapidly expanding demands for these types of fabrics.
- An availability of fine, strong, uniformly regular, continuous filament yarns ideally suitable for high-speed warp knitting, such as nylon for lace, polyester for curtaining, and elastomeric yarns for elastic laces.
- The greater suitability of the raschel machine for utilising synthetic filament yarn than traditional lace machinery, with higher productivity. It offers the benefits of low capital costs, reduced requirements for ancillary equipment, less operative supervision, and simpler pattern-changing facilities.
- Ability to achieve satisfactory imitations of mesh constructions such as tulle and marquisette by pillar inlay lapping movements.
- Development of specific purpose machines with higher speeds and greater patterning capabilities (Fig. 28.1) encouraged by the introduction of the multi-guide
- Fig. 28.1 42-bar raschel lace machine [Karl Mayer].
bar lace raschel in 1956 (with its separation of full-sett ground bars from the simple light-weight patterning bars together with the elimination of unnecessary movement and weight).
• Improvements in patterning techniques such as jacquard. These have provided sophisticated design potential for a widening range of end-uses beyond the confines of conventional guide bar lapping facilities.
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