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如何识别劣质塑料袋?

发布日期:2021-10-12 作者:www.jnsuliao.com 点击:

通过色彩来分辨
Distinguish by color
食品用塑料袋大多为透明塑料袋,也就是不带有明显的颜色。在菜市场常能看见一些商贩用红色、黑色等彩色塑料袋装果蔬、熟食及肉类等。事实上,这种彩色塑料袋大多都是添加废旧回收料制成的,是不符合食品要求的。
Most plastic bags for food are transparent plastic bags, that is, they do not have obvious colors. In the vegetable market, some vendors can often be seen packing fruits and vegetables, cooked food and meat in red, black and other colored plastic bags. In fact, most of these colored plastic bags are made of waste recycled materials, which do not meet the food requirements.
通过眼睛来识别
Recognize by eyes
即使塑料袋是透明的,也要放在光线好的地方看看有无杂质。劣质的塑料袋如果对着灯光仔细看,可以看到塑料袋上面有黑色的小点,小点分布不均匀,大小不一,甚至还可以在劣质塑料袋上看到裂口。劣质塑料袋通常用来盛装垃圾,不能盛装食品、果蔬及肉类。
Even if the plastic bag is transparent, it should be placed in a place with good light to see if there are impurities. If you look at the poor plastic bag carefully against the light, you can see that there are black dots on the plastic bag. The dots are unevenly distributed and of different sizes. You can even see cracks on the poor plastic bag. Inferior plastic bags are usually used to contain garbage, not food, fruits, vegetables and meat.
济南塑料袋
通过鼻子来鉴别
Identify by nose
由于劣质的塑料袋是用废旧回收料合成的,所以,用鼻子闻一下塑料袋里面,会闻到恶心的气味,这种塑料袋通常是有毒性的,不能用来盛装食物和蔬菜。优质塑料袋是没有什么气味的。
Because inferior plastic bags are synthesized from waste recycled materials, smelling the inside of plastic bags with your nose will smell disgusting smell. This kind of plastic bags are usually toxic and can not be used to contain food and vegetables. High quality plastic bags have no smell.
通过手来感觉
Feel through your hands
质量好的塑料袋表面光滑、致密、平整,而劣质塑料袋表面比较粗糙,用手触摸会感觉表面凹凸不平,发粘、发涩。
The surface of high-quality plastic bags is smooth, dense and flat, while the surface of low-quality plastic bags is rough. If you touch it with your hand, you will feel that the surface is uneven, sticky and astringent.
通过重量来判断
Judging by weight
把塑料袋丢入水中,如果塑料袋沉入到水底,就说明塑料袋是劣质的,如果塑料袋漂在水面上,就说明塑料袋质量较好。新料制成的塑料袋,具有一定的强度、硬度、韧性,不会一撕就坏。而劣质塑料袋在制作的过程中,需要加入很多添加剂及废旧回收料,这些添加剂及废旧回收料不但会有很浓烈的气味,还会让塑料袋变得很脆、易碎,徒手可以很容易就将塑料袋撕裂。
Throw the plastic bag into the water. If the plastic bag sinks to the bottom, it means that the plastic bag is of poor quality. If the plastic bag floats on the water, it means that the plastic bag is of good quality. The plastic bag made of new material has certain strength, hardness and toughness, and will not be damaged once torn. In the process of making inferior plastic bags, many additives and waste recycling materials need to be added. These additives and waste recycling materials will not only have a strong smell, but also make the plastic bags brittle and fragile. It is easy to tear the plastic bags with bare hands.
通过声音来区分
Distinguish by sound
把塑料袋拿在手中,用力抖一抖,如果塑料袋发出清脆的响声,说明塑料袋是劣质的,而质量好的塑料袋在抖动时会发出嗡嗡的声响。
Hold the plastic bag in your hand and shake it hard. If the plastic bag makes a crisp sound, it means that the plastic bag is of poor quality, while the high-quality plastic bag will make a buzzing sound when shaking.
以上的精彩内容来自: 济南塑料袋更多的精彩内容请点击进入我们的网站:http://www.jnsuliao.com,我们后续会有更多的内容为您
The above wonderful content comes from Jinan plastic bag. For more wonderful content, please click to enter our website: http://www.jnsuliao.com , we will have more content for you later