Xinya Packaging teaches you how to identify various packaging bag materials in life

[Summary description] Although we often use packaging bags in life, many people are still unclear about the material of Xinya packaging bags. The following professional packaging bag manufacturers will explain to you how to distinguish the common packaging bag materials in life.

Briefly describe how to identify the materials of packaging bags in life

Although we often use packaging bags in life, many people are still unclear about the material of Xinya packaging bags. The following professional packaging bag manufacturers will explain to you how to distinguish the common packaging bag materials in life.

1. PE material: It is divided into high-pressure material (LDPE) and low-pressure material (HDPE).

The surface of high-pressure material looks smoother, softer to the touch, and has better toughness. Many raw materials for handbags are made of high-pressure material.

Low-pressure material has good tensile force and high hardness. It is widely used in shopping malls and various procurement markets.

The simplest way to distinguish between upper and lower pressure is to tear it by hand. The white mark proves that it is low pressure. Because low pressure is high density, it will produce white marks. No white marks produce good tensile force is generally high pressure.

2.PP material: The material is harder, but the transparency is relatively high, clearer, the tension is not very good, and it is easy to crack. Mostly used for gift packaging and waste clothing sales. The new clothes we buy are packed in plastic bags and have a layer of double-sided tape to seal the products. Usually, they are PO plastic bags. PP plastic bags are very transparent and feel very smooth. If you fold it in half, there will be creases, while PE plastic bags will not.

3.OPP material: The material is the most brittle, the transparency is the highest, the tension is not enough, but it is the easiest to crack, and the printing is the easiest to fade. If there is no gap, it is difficult to tear it apart, but if there is a little gap, it can be torn apart without any effort.

The above are several common ways to identify the materials of packaging bags that we introduce to you.

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