引言日常使用的塑料杯都是以热塑性材料注射成形的。由于受热后易软化,又有塑料味等缺点,所以我们将材料改为热固性塑料,又因为内层与外层为同一材料的两种颜色,所以称为热固性双色塑料杯(以下简称双色杯),并采用压制成形。杯子的功能除考虑到满足人们生 Introduction Daily use of plastic cups are made of thermoplastic injection molding. Because of the easy to soften after heated, there are plastic taste and other shortcomings, so we will thermosetting plastic materials, and because the inner and outer layers of the same material in two colors, so called thermosetting two-color plastic cup (hereinafter referred to as two-color cup) , And using pressure forming. In addition to taking into account the function of the cup to meet people’s health