济南包装袋如何防止老化？

来源：http://www.sztensun.com/ 日期：2025-04-24

济南包装袋该如何防止老化

How to prevent aging of packaging bags in Jinan

不管什么包装材料，在经过长久使用后，由外界原因和自身因素，很容易出现老化还有裂纹，当然这就说明我们该换新包装了。所以防止吨包袋老化是十分重要的，很多人不是很了解这些内容，那么下面我们就一起来看下包装袋该如何防止老化吧。

No matter what packaging material is used for a long time, it is easy to experience aging and cracking due to external and internal factors. Of course, this indicates that we should replace the packaging. So preventing the aging of ton bags is very important. Many people are not very familiar with these contents. So let's take a look at how packaging bags can prevent aging together.

点就是紫外线，由于包装袋在存储、运输和使用等方面接触多的就是阳光，阳光中的紫外线具有高能量，能够促进自由基和氢氧化合物的产生，从而引发聚丙烯中分子链的断裂，所以吨包袋就表现为拉伸能力减弱等。除此之外，还要考虑当地的温度和湿度的差异。

The first point is ultraviolet radiation. Due to the fact that packaging bags are most exposed to sunlight during storage, transportation, and use, ultraviolet radiation in sunlight has high energy and can promote the production of free radicals and hydroxyl compounds, thereby causing the breakage of molecular chains in polypropylene. Therefore, ton bags exhibit reduced tensile strength. In addition, it is also necessary to consider the differences in local temperature and humidity.

第二点就是日光的光氧化机理，有两个来源：一、直接的阳光，太阳的直接照射;

The second point is the photooxidation mechanism of sunlight, which has two sources: first, direct sunlight, direct exposure to the sun;

二、间接地阳光，由于空气中的水汽、灰尘等的反射;两种主要来源的日光中含有红外线，会导致多种氧化剂，易降解聚合物。不要小看这方面的影响，经过时间的推移，我们会发现，食品级包装袋的老化日益严重。

2、 Indirect sunlight, due to the reflection of water vapor, dust, and other substances in the air; The two main sources of sunlight contain infrared radiation, which can cause various oxidants and easily degrade polymers. Don't underestimate the impact of this aspect. Over time, we will find that the aging of food grade packaging bags is becoming increasingly severe.

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