浴室人妻的情欲hd三级,无码专区丰满人妻斩六十路,国产午夜三级一区二区三,国产精品美女WWW爽爽爽视频

濟(jì)南精美塑料包裝廠為您提供塑料袋、方便袋、塑料袋、食品塑料袋,相關(guān)信息發(fā)布和資訊展示,敬請(qǐng)關(guān)注!

濟(jì)南歷下精美塑料包裝廠

服務(wù)熱線: 18764138233

熱門(mén):
行業(yè)動(dòng)態(tài)

鑒別塑料包裝袋好壞的原因

來(lái)源:http://m.58gaofang.com/ 日期:2023-12-25

一、看塑料袋油墨是否有毒。

1、 Check if the ink on the plastic bag is toxic.

在定制塑料袋的印刷過(guò)程中,選擇哪種油墨也會(huì)產(chǎn)生很大的影響。有毒油墨接觸食用油后容易褪色。因此,在購(gòu)買(mǎi)帶有印刷字樣的塑料袋之前,可以使用食用油來(lái)測(cè)試印刷油墨是否足夠。此外,有色塑料袋不能用作食品塑料袋。這種塑料袋含有芳烴,具有致癌作用。

The choice of ink also has a significant impact on the printing process of customized plastic bags. Toxic ink is prone to fading when in contact with edible oil. Therefore, before purchasing plastic bags with printed words, edible oil can be used to test whether the printing ink is sufficient. In addition, colored plastic bags cannot be used as food plastic bags. This plastic bag contains aromatic hydrocarbons and has carcinogenic effects.

二、看塑料袋的承重能力。

2、 Check the load-bearing capacity of plastic bags.

20230630034312402.jpg

目前,家庭規(guī)定制定制的塑料袋必須標(biāo)明其自身的承載能力,但市場(chǎng)上仍有大量塑料袋產(chǎn)品沒(méi)有標(biāo)明承載能力。一個(gè)簡(jiǎn)單的測(cè)試方法是用塑料袋包裝重量的產(chǎn)品,用塑料袋行走,看看袋子能持續(xù)多久。這個(gè)測(cè)試很麻煩,那么為什么買(mǎi)家要注意塑料袋的承載能力呢?這是因?yàn)槌休d能力差的塑料袋產(chǎn)品在使用過(guò)程中經(jīng)常會(huì)破裂,這會(huì)增加客戶使用的塑料袋數(shù)量,造成浪費(fèi)。

At present, custom plastic bags made by families must indicate their own load-bearing capacity, but there are still a large number of plastic bag products on the market that do not indicate their load-bearing capacity. A simple testing method is to package the weight of the product in plastic bags, walk in the plastic bags, and see how long the bags can last. This test is very complicated, so why should buyers pay attention to the load-bearing capacity of plastic bags? This is because plastic bag products with poor load-bearing capacity often break during use, which increases the number of plastic bags used by customers and causes waste.

三、要做焚燒實(shí)驗(yàn)。

3、 We need to conduct an incineration experiment.

塑料袋的原的原材料直接決定塑料袋的質(zhì)量。由食品原料制成的袋子是廢料,以及由廢料和顏料制成的塑料袋生產(chǎn)成本低且有毒。點(diǎn)燃塑料袋,待塑料袋熄滅后,觀察燃燒前后是否有黑煙、刺鼻氣味和黑色物質(zhì)。如果上述三種材料中有一種,實(shí)驗(yàn)中使用的塑料袋很可能是由廢物制成的。

The raw materials of plastic bags directly determine their quality. Bags made from food ingredients are waste, and plastic bags made from waste and pigments have low production costs and are toxic. Ignite the plastic bag and observe for black smoke, pungent odor, and black substances before and after the bag goes out. If one of the three materials mentioned above is used, the plastic bag used in the experiment is likely to be made from waste.

感謝您的閱讀,此文的文章來(lái)源:濟(jì)南方便袋更多的內(nèi)容和問(wèn)題請(qǐng)點(diǎn)擊:http://m.58gaofang.com我們會(huì)繼續(xù)努力的為您提供服務(wù),感謝您的支持!

Thank you for reading. The source of this article is Jinan Convenience Bag. For more information and questions, please click: http://m.58gaofang.com We will continue to work hard to provide you with services. Thank you for your support!

久久国产精品波多野结衣AV| 久久精品国产亚洲av无码| 国产综合一区二区三区| 天天综合亚洲色在线精品| 精品无码一区二区三区亚洲桃色| 夜夜爽日日澡人人添| 中文字幕人妻无码乱精品| 激情综合亚洲色婷婷五月app| 国产精品色情AAAAA片软件| 免费人成视频在线观看| 亚洲V国产V天堂A无码二区久久 | 亚洲精品欧美综合四区| 亚洲国产精品尤物YW在线观看| 久久久久久久爽少妇毛片| 大学生疯狂高潮呻吟免费视频| 色欲AV人妻精品一区二区直播| 国产爆乳无码一区二区麻豆 | 国产亚洲精品精品国产亚洲综合 | 亚洲精品国产福利一二区| 精品AV无码国产一区二区| 国产一区二区三区在线观看| 久久水蜜桃亚洲av无码精品| 欧美牲交a欧美牲交| 国产精品久久无码一区| 国产精品久久久久av福利动漫| 日韩人妻无码精品久久久不卡| 国产做a爰片久久毛片a片美国| 亚洲国产成人精品无码区在线| 色哟哟国产精品免费观看| 久久人妻内射无码一区三区| 亚洲AV无码成人精品区日韩 | 日本三级丰满邻居人妻视频| 最近2019年免费中文字幕电影| 97久久国产露脸精品国产| 久久国产成人精品国产成人亚洲 | 国内精品视频一区二区三区| 久久久99久久久国产自输拍| 精品亚洲av在线无码播放| 末成年女AV片一区二区丫| 国产在线拍揄自揄拍无码视频| 无码精品一区二区三区|