| 摘要 |
PURPOSE:To enhance product insertion easiness, slittability, physical strength, heat sealability, etc., by using a packaging film composed of linear low-density polyethylene L-LDPE, high-density polyethylene HDPE, carbon black, and a lubricant. CONSTITUTION:The packaging film is composed of, preferably, 60-93wt% L-LDPE, preferably, 5-40wt% HDPE, preferably, 3-7wt% carbon black, and 0.01-1.0wt% lubricant. The most desirable typical trade mark is 'Ultzex'(R) and 'Dowlex'(R). As the carbon black, oil furnace carbon having a pH of 6-8 and an average particle diameter of 15-30mum is especially preferable. |
