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|1. (WO2017038240) GLASS CLOTH|
UNITIKA GLASS FIBER CO., LTD.
Provided is a glass cloth that can be made thin with a thickness of 14 µm or less and with which occurrences of pinholes can be suppressed when forming a thin prepreg with, for example, a thickness of 20 µm or less. The glass cloth satisfies the following (i) - (iv). (i) Degree of opening is 70 - 90% for the warp and 95 - 120% for the weft. (ii) Either the gap spacing between adjacent warps or the gap spacing between adjacent wefts is 100 µm or less. (iii) Thickness as measured according to JIS R 3420: 2013, 7.10.1 is 14 µm or less. (iv) Cloth mass measured according to JIS R 3420: 2103, 7.2 is 11 g/m2 or less.