济南塑料袋订做：如何辨别一个塑料袋好坏

来源：http://www.jingmeisuliao.com/ 日期：2024-11-14

　　外观检查 ：

　　Appearance inspection:

　　是否有“食品用”标志，这个标志通常在包装袋正面，比较醒目的位置。

　　Is there a "food use" logo, which is usually prominently displayed on the front of the packaging bag.

　　颜色：一般而言，有颜色的塑料袋大都使用了废旧塑料的回收料，是不能用来装食品的。比如，一些菜市场用来装鱼、虾等水产品或肉类的黑色塑料袋，原本是用来装垃圾的，消费者应避免使用。

　　Color: Generally speaking, colored plastic bags mostly use recycled waste plastics and cannot be used to store food. For example, some markets use black plastic bags to store fish, shrimp, and other aquatic products or meat, which were originally intended to hold garbage, and consumers should avoid using them.

　　是否有杂质，如黑点或口子。有杂质的塑料袋肯定是使用了废塑料做原料。

　　Are there any impurities, such as black spots or cuts. Plastic bags with impurities must have used waste plastic as raw material.

　　气味检测 ：

　　Odor detection:

　　闻一闻塑料袋有无异味，合格的塑料袋应该是无异味的，而不合格的塑料袋由于使用了添加剂，会带有各种味道。

　　Smell the plastic bag for any odor. A qualified plastic bag should have no odor, while an unqualified plastic bag may have various odors due to the use of additives.

　　强度测试 ：

　　Strength test:

　　合格的塑料袋具有一定强度，不会一撕就破；而不合格的塑料袋由于添加了杂质，往往强度很差，容易破裂。

　　Qualified plastic bags have a certain strength and will not break easily when torn; However, unqualified plastic bags often have poor strength and are prone to breakage due to the addition of impurities.

　　抖动塑料袋时，发出清脆声响的是的，而声音闷涩的可能有毒。

　　When shaking plastic bags, those that make a crisp sound are non-toxic, while those that make a muffled sound may be toxic.

　　火烧测试 ：

　　Fire test:

　　将塑料袋剪下一角，放在火上一烧，的烧之即燃，火焰呈黄色，熔化像蜡烛一样滴落，发出石蜡气味；有毒的不易燃烧，火焰呈绿色，并有一股呛鼻的异味。

　　Cut off a corner of the plastic bag and burn it over a fire. The non-toxic material burns instantly, and the flame turns yellow, melting and dripping like a candle, emitting a wax like odor; Toxic and non flammable, with a green flame and a pungent odor.

　　手感检测 ：

　　Touch detection:

　　的塑料袋表面光滑，摸起来有蜡状感；有毒的塑料袋表面发粘、发涩。

　　Non toxic plastic bags have a smooth surface and a waxy feel when touched; Toxic plastic bags have sticky and rough surfaces.

　　沉浮试验 ：

　　Floating test:

　　把塑料袋放在水里，并用手将其按到水底，稍等片刻，浮出水面的即为塑料袋，沉在水底的即为有毒塑料袋。

　　Put the plastic bag in the water and press it to the bottom with your hand. Wait for a moment, the one that floats to the surface is the non-toxic plastic bag, and the one that sinks to the bottom is the toxic plastic bag.

　　材质选择 ：

　　Material selection:

　　选择透明度高的聚乙烯或聚丙烯材料制成的塑料袋，这些材料质量更好，更耐用。

　　Choose plastic bags made of high transparency polyethylene or polypropylene materials, which are of better quality and more durable.

　　其他注意事项 ：

　　Other precautions:

　　塑料袋少装热、油食物，因为高温和油脂会使塑料袋中的有害物质析出，导致中毒。

　　Plastic bags should be used to store less hot and oily food, as high temperatures and grease can cause harmful substances in the plastic bags to precipitate, leading to poisoning.

　　平时要尽量做到不使用塑料袋盛放食品，可以使用篮子或布袋代替。

　　Try not to use plastic bags to store food in daily life, and use baskets or cloth bags instead.

　　本文的精彩内容由济南塑料袋订做提供知识提供，本网站还有很多的精彩内容，更多的内容您可以点击进入：http://www.jingmeisuliao.com我们有专门的客服为您解答问题

　　The exciting content of this article is provided by the knowledge provided by Jinan Plastic Bag Customization. There are also many exciting contents on this website. For more content, you can click to enter: http://www.jingmeisuliao.com We have dedicated customer service to answer your questions