我队过去写岩心編号所用的防水墨汁,防水性很差,夏天岩石回潮,冬天天气寒冷,墨汁使用后都不易乾,以致字跡容易模糊。难于久存。为此,我们曾试验以松节油和黑漆油的混合油液代替防水墨汁,效果良好。其混合比一般在夏季以3比2;冬季各取半值为适宜,但也可根据具体情况(如夏季气候太热,松节油特别易于蒸发时)适当的調节之,即濃度大时加松节油;濃度小时則加黑漆油。 In the past, my team wrote waterproof ink used for the core number, which was very poor in waterproofness. In the summer, the rock resurgence, and in winter, the weather was cold. After the ink was used, it was not easy to dry, so that the handwriting was easily blurred. Hard to survive for a long time. For this reason, we have tried to replace the waterproof ink with a mixture of turpentine oil and black lacquer oil with good results. The mixing ratio is usually 3 to 2 in summer; half of the value in winter is appropriate, but it can also be properly adjusted according to the specific conditions (such as the summer climate is too hot, turpentine is particularly easy to evaporate), that is, when the concentration is high, turpentine is added. When the concentration is small, add black oil.