Sizing agent for quartz glass fiber, quartz glass yarn, quartz glass cloth and method for producing quartz glass cloth

摘要

PROBLEM TO BE SOLVED: To provide a sizing agent for quartz glass fiber that solves problems found in the conventional sizing agent for a glass fiber, enables heat deoiling at a comparatively low temperature and does not generate residual impurities having any adverse effect as a circuit board, to provide a quartz glass yarn using the sizing agent and to provide a quartz glass cloth and a method for producing the quartz glass cloth.SOLUTION: The sizing agent for a quartz glass fiber includes starch, ammonium nitrate and water. It is preferable that the sizing agent for a quartz glass fiber be one containing the ammonium nitrate in an amount of 1 to 30 mass% based on the total amount of the remainder of the sizing agent from which water in the sizing agent is removed.SELECTED DRAWING: None