FIELD: equipment for through blowdown drying, may be used in forming, pressing and drying sections of papermaking machine.
SUBSTANCE: base-forming grid has warp threads interwoven with weft threads. Some warp threads are threads of first type and some warp threads are threads of second type. First type warp threads are interwoven with weft threads by plain weave and second type warp threads are interwoven with weft threads by 2/2 serge weave, with first type warp threads alternating with second type warp threads. Second type warp threads are extending in wavy path between adjacent first type warp threads to render required openness to grid.
EFFECT: provision for producing grid with open structure to provide for effective mutual mechanical binding of cured resin with warp and weft threads.
16 cl, 6 dwg
