GB/T 19784

📋 Scope / 适用范围 ai_extracted

This standard specifies the classification and types, requirements, packaging methods, and marking of shrink film packaging (hereinafter referred to as shrink packaging). This standard applies to the sales packaging and transport packaging of various products using shrink packaging.

📚 References & Relations / 引用与关联

📖 Terms & Definitions / 术语和定义 ai_extracted

收缩率

在控制温度下，将薄膜收缩后尺寸变化的百分比（％）。

Percentage (%) of dimensional change of the film after shrinkage under controlled temperature.

收缩比

在控制温度下，将薄膜收缩后，纵横向最大收缩率之比。

The ratio of the maximum shrinkage in the machine direction to that in the transverse direction after the film is shrunk under controlled temperature conditions.

收缩张力

收缩张力是指薄膜收缩后施加给被包装物的张力。

Shrink tension refers to the tension exerted on the packaged item after the film has shrunk.

收缩温度

收缩薄膜加热到一定温度开始收缩，温度升到一定高度又停止收缩，在此范围内的温度称为收缩 温度。

When a shrink film is heated to a certain temperature, it begins to shrink; as the temperature rises to a certain level, the shrinkage stops. The temperature range within this process is referred to as the shrinkage temperature.

🔗 Related Standards / 同类标准