moss green in a dye bath composed as follows 2 0 hipochem pnd 11 amine salt of alcohol ester by highpoint chemical company 1 0 hipochem cdl 60 nonionic surfactant by highpoint chemical company chemical structure not available and monosodium and or disodium phosphate to adjust the ph to 7 0 u00b1 0 2 the sleeve was cut into sections about 5 inches long and each section was weighed the sleeves were then dipped in the methanol solutions shown below for 20 minutes the sleeves were then removed from the solutions dried and reweighed the amount of material coated on the sleeves from each solution was based on the difference in weight between the coated and the uncoated sleeves compared to the control the sleeves were then exposed to three cycles of ozone in an atmosphere of about 80 parts per hundred million of ozone at a temperature of 104 u00b0 f at a relative humidity of at least 95 a cycle is that exposure which is completed when the internal nylon standard dyed olive i has faded sufficiently to give a u03b4e of 2 8 the measurement u03b4e is dicussed under 34 description of preferred embodiments 34 the solutions the amount of coating and the results of ozone exposure are listed as follows ______________________________________ pickup u03b4e______________________________________a control 200 ml dimethylformamide 0 10 3 b 1 gram 1 3 di n butyl 2 thiourea 0 4 2 3 c 3 grams 1 3 di n butyl 2 thiourea 1 6 0 9 d 1 gram 1 3 dicyclohexyl 2 thiourea 0.