摘要:
Acylated polyallylamine, whose cation density is controlled as desired, is easily produced by treating a solution of polyallylamine having a polymerization degree of at least 10 with a carboxylic acid anhydride such as acetic anhydride. Also, it is suggested that the present acetylated polyallylamine is used as a reactive dye-fixing agent, a direct dye-fixing agent, etc.
摘要:
Acylated polyallylamine, whose cation density is controlled as desired, is easily produced by treating a solution of polyallylamine having a polymerization degree of at least 10 with a carboxylic acid anhydride such as acetic anhydride. Also, it is suggested that the present acetylated polyallylamine is used as a reactive dye-fixing agent, a direct dye-fixing agent, etc.
摘要:
The present invention provides a method for surface treatment of carbon fibers which comprises allowing an alkali metal nitrate to adhere to carbon fibers in an amount of 0.01-5% by weight based on the weight of the carbon fibers and then heat treating the carbon fibers in the air at a temperature between at least the melting point or at least the decomposition temperature of the alkali metal nitrate and lower than 500°C.