alcolhol/10 oz sodium hyposulfite/10 oz water/75 oz glycerin/5 oz lay the hat aside in a damp place for 24 hours and then apply a mixture of citric acid/2 oz sponge the hat with a solution of: alcohol/10 oz water/90 oz
配制方法:
press with a moderately hot iron after stiffening with gum water, if necessary.