按标签归档 Film

保護フィルムの基本知識

表面保護フィルムに求められる機能 1．貼り合せ機能 シワや空気が入らないように、ある程度フィルムに張力を加えながら貼合せすることがポイントです。特に、塗装などの表面処理が施されている被着体は、シワや空気（気泡）が“跡”となって残るなどの不具合につながるリスクが高くなります。 2.加工機能

Surface Modification of Plastic Films – Slip Additives

The coefficient of friction can be reduced by adding slip agents. The requirement for a slip agent is that it is miscible with the polymer melt, but separates as the polymer is crystallising. Sometimes the separation will rake several hours or days to become complete. The slip agent should form a very thin layer on [...]

Surface Properties of Plastic Film – Slip

Polyolefin films generally have a smooth surface, with the exception of defects and surfacecrystal structures. They have a low surface energy and so frictional forces are low. Relative to their strength, the frictional forces can cause damage to the films. Slip additives can decrease the frictional forces. The factors that cause poor slip are often [...]

抜き加工専門用語

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