Patent ID: 11959203
Assignee: NITTO BOSEKI CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 0:
1. A glass roving cloth comprising:
a warp yarn; and
a weft yarn,
the warp yarns being glass rovings each comprising glass filaments, each having a filament diameter Dt in a range of 9.5 to 30.0 μm, bundled in a number bundled Ft in a range of 400 to 8000,
the weft yarns being glass rovings each comprising glass filaments, each having a filament diameter Dy in a range of 9.5 to 30.0 μm, bundled in a number bundled Fy in a range of 400 to 8000, wherein
a weaving density of the warp yarns Wt and a weaving density of the weft yarns Wy are each in a range of 2.0 to 14.0 yarns/25 mm,
a warp yarn average yarn width Bt and a weft yarn average yarn width By are each in a range of 500 to 8000 μm,
a warp yarn widening rate Et (100×Bt/(Dt×Ft)) and a weft yarn widening rate Ey (100×By/(Dy×Fy)) are each in the range of 3.0 to 30.0%,
a glass occupancy in a warp yarn direction Mt (100×Bt/(25000 (μm)/Wt)) is in a range of 90.0 to 106.0%, and
a glass occupancy in a weft yarn direction My (100×By/(25000 (μm)/Wy)) is in a range of 75.0 to 99.0%.