开松就是把大的纤维团、块扯散成小块、小束的过程。开松使纤维横向联系的规模缩小，为以后进一步松解到单根状态创造条件。从广义上说,麻皮的脱胶也是种开松。开松通过两种手段:打松和扯松。打松利用自由状态下的拍打,产生振荡，使纤维块松散，如拍打羽绒服可使其蓬松。扯松利用握持状态下的分扯，使大块变小。
开棉机和混棉机将从不同棉包(箱)取来的棉纤维开松并混合。
The opening and blending machines separate the fibers and blend fibers from the different bales or cartons.
本机用于羊毛的原毛开松除杂，去除原毛的砂土、草屑等杂质。
The machine is used for opening raw wool and for removing the foreign matter in it, such as sandy soil and grass bits.
开棉机和混棉机将从不同棉包(箱)取来的棉纤维开松并混合。
Several bales or cartons of fibers are placed in the opening, cleaning and blending area.
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