軟包裝常用材料物理特性
| 遮斷性 | 強(qiáng)度 | 機(jī)能 | ||||||||||
| 水氣 | 氧氣 | 一般 | 挺性 | 低溫 | 高溫 | 透明 | 成型 | 封合 | 印刷 | 保香 | ||
| 紙 | × | × | 〇 | ◎ | ◎ | ◎ | × | × | × | ×◎ | × | |
| 金屬 | AL | ◎ | ◎ | × | × | ◎ | ◎ | × | 〇 | × | ◎ | ◎ |
| 薄膜 | OPP | 〇 | × | ◎ | ◎ | △ | △ | ◎ | × | US | ◎ | × |
| CPP | 〇 | × | 〇 | 〇 | × | △ | ◎ | ◎ | ◎ | 〇 | × | |
| PET | 〇 | 〇 | ◎ | ◎ | ◎ | ◎ | ◎ | × | × | ◎ | ◎ | |
| ONY | △ | 〇 | ◎ | 〇 | ◎ | ◎ | ◎ | × | × | 〇 | 〇 | |
| CNY | × | △ | ◎ | △ | 〇 | ◎ | 〇 | ◎ | × | △ | 〇 | |
| LDPE | 〇 | × | △ | ×△ | 〇 | × | 〇 | ◎ | ◎ | △ | × | |
| HDPE | 〇 | × | 〇 | △〇 | 〇 | △ | △ | 〇 | 〇 | △ | × | |
| PVDC | ◎ | ◎ | ◎ | × | 〇 | 〇 | ◎ | ×〇 | W | 〇 | × | |
| PVC | 〇 | × | 〇 | △ | 〇 | △ | ◎ | ◎ | W | 〇 | 〇 | |
| PVA | × | ◎ | ◎ | 〇 | 〇 | 〇 | ◎ | 〇 | × | △ | 〇 | |
| EVOH | × | ◎ | ◎ | 〇 | 〇 | △ | ◎ | 〇 | × | △ | 〇 | |
| OPS | △ | × | ◎ | ◎ | 〇 | 〇 | ◎ | ◎ | 〇 | 〇 | × | |
| PVDC | KOP | ◎ | ◎ | ◎ | ◎ | △ | △ | ◎ | × | 〇 | ◎ | 〇 |
| 涂布 | KPET | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | × | 〇 | ◎ | ◎ |
◎：優(yōu) 〇：良好△：一般×：不良US：超音波封合W：高周波封合
