塑料袋的原料系高分子化合物,其结构稳定,不易被天然微生物菌降解,不可降解的塑料袋自然腐烂需要200年以上。废塑料袋如不回收,混在土地中,而造成土壤板结,影响农作物吸收养分和水分,导致农作物减产。定制塑料袋严重污染环境卫生,增加环卫工人的工作量。每天大风天气,塑料袋刮得满天飞舞,有的挂在树梢上,有的挂在电线上,起来费时费力又危险。如果将它随意焚烧,会散发有毒气体,污染空气,影响人们健康。塑料袋一,在塑料袋中含有一种能够致癌的物质,这种致癌的物质叫做苯并芘,这个物质具有很强的致癌性,如果经常去使用塑料袋来装食物塑料袋中所含有的致癌物质就会慢慢的释放出来,进入到我们的食物当中,人体进食的过程中会导致我们人体的细胞发生癌变。
The raw materials of plastic bags are polymer compounds, which have stable structure and are not easy to be degraded by natural microorganisms. It takes more than 200 years for non degradable plastic bags to decay naturally. If the waste plastic bags are not recycled, they will be mixed in the land, causing soil hardening, affecting the absorption of nutrients and water by crops, resulting in crop yield reduction. Customized plastic bags seriously pollute the environment and sanitation, increasing the workload of sanitation workers. In windy weather every day, plastic bags are flying all over the sky. Some of them are hung on tree tops and some on electric wires. It is time-consuming, laborious and dangerous to clear them. If it is burned at will, it will emit toxic gas, pollute the air and affect people's health. Plastic bag 1 contains a carcinogenic substance, which is called benzopyrene. This substance has a strong carcinogenicity. If plastic bags are often used to contain food, the carcinogenic substances contained in plastic bags will slowly release and enter our food. When people eat, our cells will become cancerous.
二、当然,大家在选择这一些塑料袋的时候,除了应该要去关注他的,抗拉性究竟好不好之外,还应该要去关注我们的袋子的原料是否是的?塑料袋因为有一些袋子的制作原料非常的差由这一些劣质的原料生产出来的背心袋会有非常重的异味,不仅仅不能够用它来装一些食物,甚我们用它来装一些普通的商品,其实也会给这些商品带来比较大的伤害。塑料袋加工当然,我们如果将这些袋子拿来当做垃圾袋,也并不是非常的,虽说像这种味道比较重的袋子,大家千万不能够拿它用来包装食物,因此大家在采购这些背心袋的时候一定要要求厂家使用那些全新的原料来进行生产,不然的话,我们的这些背心袋可能就会带来更多的负面的影响。
2、 Of course, when choosing these plastic bags, we should pay attention to whether the raw materials of our bags are safe in addition to their tensile properties? Because some bags are made of very poor materials, the vest bags made of these inferior materials will have a very heavy odor. Not only can they not be used to hold some food, but even we can use them to hold some ordinary goods. In fact, it will also cause great harm to these goods. Of course, plastic bag processing is not very safe if we use these bags as garbage bags. Although such bags with heavy taste cannot be used to package food, when purchasing these vest bags, we must require manufacturers to use those new raw materials for production. Otherwise, our vest bags may bring more negative effects.
1、油墨调配小技巧缺什么色相加什么色相的油墨。去除某色相中偏多的色相时,应正确应用互为补色的原理。乳山塑料袋在生产实践中,有时为了使白色更白,在白墨中加微量的群青(百分之1左右),用来白色中的黄色就可达到目的。塑料袋而只要在黑墨中加入少量的钛青蓝,就可黑墨中的黄色调。制淡色油墨时,要在白墨中加入色墨,而不要把白墨加入色墨中,白墨的遮盖力特强,加入过多会很快冲淡颜色。而在配制深色油墨时,则一定要把黑墨添加入色墨中,切不可把色墨添加入黑墨中,因为黑墨的着色力特强,稍不慎而加入过多,就需要加入相当多的色墨来调整颜色。观察色样时,尽量在标准光源下进行,且要采用相同的底板。
1. Ink dispensing tips What hue is missing and what hue is added to the ink. The principle of complementary colors should be correctly applied when removing more colors in a color phase. In the production practice of Rushan plastic bags, sometimes in order to make the white more white, a small amount of ultramarine blue (about 1%) is added to the white ink to eliminate the yellow in the white. As long as a small amount of titanium blue is added to the black ink, the yellow tone in the black ink can be eliminated. When making light colored ink, you should add colored ink to white ink instead of white ink. White ink has strong hiding power and will dilute the color quickly if you add too much. When preparing dark ink, black ink must be added to the color ink, and color ink must not be added to the black ink. Because black ink has strong coloring power, it is necessary to add a considerable amount of color ink to adjust the color. Observe the color sample under the standard light source as much as possible, and use the same base plate.
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The above is a detailed introduction of Jinan plastic bags for you. I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with our attitude http://www.jingmeisuliao.com