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割皮硫酸化学采脂是我国一种新的化学采脂法。此法能大幅度地提高割沟(单刀)产脂量,比常法下降式采脂高3—4倍,流脂时间长,长达14天左右,劳动生产率高,适于马尾松主伐前2—3年的强度采脂。此方法割沟的深度只割至韧皮部或形成层,以不割伤木质部为好。割面的形式呈上升鱼骨式。每次割沟后用浓度50%液体硫酸均匀喷洒于沟面,喷酸不宜过多,以湿润沟面为宜。为提高日割沟数和喷酸效率,再度地提高劳动生产率,我们曾于1965和1966两年对割皮化学采脂工具(割皮采脂刀和喷酸壶)进行研制。兹简介如下:
Sliced leather sulfuric acid chemical fat-picking is a new chemical method in our country. This method can greatly improve the cut ditch (single knife) fat production, than the normal method to reduce the type 3-4 times higher, fat long time, up to 14 days, high labor productivity, suitable for the masson pine 2-3 years of strength liposuction. This method cut the depth of the trench only to the phloem or the formation of layers, to not cut xylem as well. The shape of the cut surface is a fishbone. After each cut trench with a concentration of 50% liquid sulfuric acid evenly sprayed on the groove surface, spray acid should not be too much, to wet the groove surface is appropriate. In order to increase the number of dipping furrows and the acid-pouring efficiency, and to increase labor productivity again, we developed the cut-skin chemical fat-extraction tools (skinning knife and acid-pouring pot) in 1965 and 1966. Here is a brief introduction: