The present invention provides a method for producing a glass cloth which is suitable as reinforcing material for making resin laminates and which comprises subjecting filaments of glass fibers to sizing treatment with a sizing agent containing at least one water-soluble film forming agent selected from the group consisting of an amine-modified epoxy resin, an ethylene oxide-added epoxy resin and ethylene oxide-added bisphenol A as film forming component, forming glass yarns from the thus treated filaments, weaving the glass yarns to make a glass cloth, washing the glass cloth with water until LOI of the sizing agent to the glass cloth reaches 0.25% by weight or less, and then treating this glass cloth with a solution of a surface treating agent.
本发明提供了一种生产
玻璃布的方法,该
玻璃布可用作制造
树脂层压板的增强材料,其方法包括用一种上浆剂对
玻璃纤维丝进行上浆处理,该上浆剂含有至少一种
水溶性成膜剂,该成膜剂选自胺改性环氧
树脂、
环氧乙烷添加环氧
树脂和
环氧乙烷添加双
酚 A 组成的成膜组、
环氧乙烷添加型环氧
树脂和
环氧乙烷添加型双
酚 A 组成的组中的一种作为成膜成分的上浆剂进行上浆处理,用这样处理过的长丝形成
玻璃纱,编织
玻璃纱以制成
玻璃布,用
水洗涤
玻璃布,直到上浆剂对
玻璃布的 LOI 达到 0.25% 或更低,然后用表面处理剂溶液处理该
玻璃布。