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美国对化学采脂的研究美国研究刺激松脂流动的目的在于增加松脂的工时产量。最初搞化学刺激法时试了很多药剂,其中绝大多数都增加松脂的流量,但效果最好的是硫酸。硫酸刺激法又分硫酸液和硫酸软膏两种,后者优于前者。1.硫酸液刺激法将50%浓度的硫酸液放在聚乙烯塑料瓶内,将瓶挂在松树上。使用时采脂工从树上取下喷酸瓶,用手挤压瓶体则喷出细滴状硫酸,使瓶嘴边喷边沿着新的割沟移动。酸的用量必须正确掌握。既要使酸完全
The United States of America on the study of chemical lipids US study to stimulate the flow of rosin is aimed at increasing the yield of rosin. Initially engaged in chemical stimulation test a lot of agents, most of which increase the flow of turpentine, but the best is sulfuric acid. Sulfuric acid stimulation is divided into sulfuric acid and sulfuric acid ointment two, which is better than the former. 1. Sulfuric Acid Stimulation Method A 50% strength sulfuric acid solution is placed in a polyethylene plastic bottle and the bottle is hung on a pine tree. When using grease from the tree to remove the spray bottle, hand squeeze the bottle is sprayed with fine droplets of sulfuric acid, so that the edge of the mouth spout along the new cut trench move. The amount of acid must be properly mastered. It is necessary to make the acid completely