What material is PE packaging bag? This is a question asked by a netizen on Baidu Zhidao yesterday. In fact, I don't know how many times I have told everyone about this question, but due to the title and keywords, it may not be searchable. Today, the first thing I want to explain in detail is that PE, one of the commonly used heat sealing materials in composite packaging bags, is one of them. Therefore, I will introduce it to you today.

1、 Description of the overall characteristics of PE material.

Transparent in appearance, yet with a sense of atomization; Soft to the touch and resilient; Good low-temperature resistance and strong moisture resistance, but low barrier to oxygen and air; The printing performance itself is poor, but after modification or processing, it can print light colors, and it is not recommended to print large areas of dark colors.

2、 The packaging bag material PE is commonly classified in food packaging.

PE can be divided into three categories based on production processes: high-density HDPE, low-density LDPE, and linear low-density LLDPE. Their application focus in food packaging bags varies, and their performance also differs slightly.

High density HDPE material, also known as low-pressure polyethylene, has excellent performance in high temperature resistance and oil resistance. It can be used as a heat sealing layer in packaging bags for meat and fried foods.

Low density LDPE material, commonly known as high-pressure polyethylene, is the softest type of PE material in terms of texture. Can be used as a separate packaging bag, such as a transport packaging bag for fresh fruits, meat, and other frozen and refrigerated foods. Or plastic shopping bags, fresh-keeping bags, etc. for food.

Linear low-density LLDPE material has a similar appearance to LDPE, with excellent properties such as low temperature toughness, impact resistance, stress cracking resistance, and fatigue resistance. In frozen food packaging bags: ice-cream, ice cream, Rice-meat dumplings, quick-frozen dumplings and other packaging bags, LLDPE materials are used for heat sealing.

The method to distinguish between high-density and low-density PE materials: 1. If the touch is delicate, the softness of the two can be compared, with low-density materials being softer. 2. Use your nails to scratch the material, and the high-density HDPE material will not leave any scratches, while the low-density LDPE material will not.

3、 The Triumph Case of Food Packaging Bags Made of PE Materials

PE material is one of the most commonly used materials in Baotian packaging, which can be used as a single film bag or as a heat sealing layer for composite bags. Below we will show you the food packaging bags made of PE material recorded by Triumph.