Rosin

Japanese: ロジン
Rosin
The main component of pine resin. A general term for resins whose main component is resin acids such as abietic acid C 2 (/0)H 3 (/0)O 2. It is obtained by steam distillation of pine resin to remove turpentine (gum rosin), by solvent extraction from pine wood or pine stumps (wood rosin), or as a by-product of making pulp from pine wood using the Kraft method (tall rosin). A pale yellow to brown, transparent, brittle solid. It melts at 100-135°C and is soluble in organic solvents. Applications of resin acids include paper sizes, varnishes, printing inks, bases for bandages, and rubber softeners.
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Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:
松脂(まつやに)の主成分。アビエチン酸C2(/0)H3(/0)O2などの樹脂酸を主成分とする樹脂の総称。松脂を水蒸気蒸留してテレビン油を除く(ガムロジン)か,またはマツ材,マツの切株から溶剤抽出する(ウッドロジン)か,マツ材からクラフト法でパルプをつくるときの副産物(トールロジン)として得られる。淡黄〜褐色透明なもろい固体。100〜135℃で融解,有機溶剤に可溶。樹脂酸の用途は製紙用サイズ,ワニス,印刷インキ,絆創膏(ばんそうこう)などの基剤,ゴム軟化剤など。
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