日韩欧美亚洲国产_日本一级二级视频_日操夜操天天操_青青在线视频免费_中文在线一区二区三区_可以免费在线观看的av_午夜av入18在线_国产一区二区三区中文字幕_国产精品一色哟哟_日韩成人免费在线观看

PLA全生物降解袋2022-12-31

可降解袋又稱全生物降解袋，或者叫PLA全生物降解袋，有的公司又叫PLA+PBAT全生物降解袋，行業不同的公司有不同的叫法。今天主要聊聊可降解袋的特點和降解的分類。 一、可降解塑料袋： 可降解塑料是指在生產過程中加入一定量的添加劑（如淀粉、改性淀粉或其它纖維素、光敏劑、生物降解劑等），使其穩定性下降，后較容易……

拉伸膜的價格波動主要受市場那些因素的影響2022-12-18

拉伸纏繞膜也叫纏繞膜，或者PE拉伸膜，PE圍膜，打包膜，物流運輸膜，主要應用在貨物的卡板運輸外包裝的纏繞上，是一種物流運輸中非常常見的打包膜，可以起到防水，防潮，緊固的作用，同時也可以用于纏繞電纜電線、各類整理輥、機器設備、家具五金配件、塑料軟管、管材、家私家具、建筑材料、旅游運動鞋、無紡織布等異型產品的包裝，產品借助……

Key factors affecting the quality of PE plastic bag moisture packaging2022-01-21

The moisture-proof material of the PE plastic bag is a key factor affecting moisture-proof packaging. Any material that can delay or prevent external moisture transmission can be used as a moisture-proof barrier to carry out moisture-proof packaging. Some packaging materials, such as paper products, poor moisture-proof……

New application of quad-square bag (square bag)2022-01-21

In recent years, all four-square bag (square bag) began to be more and more sought after. According to the material, there are three types of PE square bags, PO square bags, and PVC quartet bags, and other materials are relatively small. Mainly used in the dust-proof moisture of the equipment, the dust-proof moisture o……

Which issues should be paid attention to using a PO rubber bag and PO plastic bags related features2022-01-21

1. Common food packaging rubber bags are made of polyethylene films, which is non-toxic, so it can be used to dress food. 2, the transparency of the PO rubber bag, high brightness, superior to ordinary PVC and PE. 3, PO rubber bag tensile strength, strong impact resistance, make the product packaging, good, not easy to……

How to quickly distinguish plastic bag material? The difference between plastic bag material2022-01-21

Nowadays, plastic packaging bags, there are many materials such as PE bags, CPE bags, PVC bags, OPP bags, PP bags, composite bags, etc., consumers should customize the same bag of packaging bags if they take a picture. , It is very difficult, because the pictures taken by the above bags are almost the same, just see pi……