Let me introduce you to high-pressure polyethylene plastic convenient bags, which are commonly made from original materials for plastic bags. High-pressure polyethylene is also known as low-density polyethylene (LDPE). These bags are usually semi-transparent and tend to be more transparent than those made from low-pressure polyethylene. They have three primary uses.
High-density polyethylene (HDPE), also known as low-pressure polyethylene, finds extensive applications in various sectors such as food packaging, textile packaging, and daily chemical product packaging. It is commonly used for packaging pastry, candy, fried goods, milk powder, salt, tea, shirts, clothing, bedding, chemical fiber products, and more.
Specifically focusing on food packaging, HDPE plastic bags are preferred for storing pastries, candies, fried products, milk powder, salt, tea, and other food items. These bags offer a level of convenience due to their low-pressure polyethylene composition. Although they possess high crystallinity, their transparency is relatively poor, resulting in a translucent appearance. It is essential to note that the transparency of HDPE plastic bags is lower when compared to high-pressure polyethylene bags.
Apart from food packaging, HDPE plastic bags are also utilized in textile packaging. They are commonly employed for packaging shirts, clothing, bedding, chemical fiber products, and daily chemical products. The durable nature of HDPE makes it suitable for protecting and storing these items effectively. Thus, the versatile nature of HDPE plastic bags allows them to cater to different packaging requirements efficiently.
Polypropylene is a versatile material that is used to make a variety of products such as garbage bags, bacterial seed bags, toilets, shopping bags, handbags, backpacks, plastic preservation bags, and polypropylene plastic convenient bags inside woven bags. When compared to polyethylene, polypropylene may have weaker crystallization ability. In particular, amorphous polypropylene has weak crystallinity, which results in plastic bag products having a high level of transparency.
The plastic bags made of non-polar materials are commonly used for packaging clothing items such as fibers, knitwear, and shirts. However, these bags are challenging to dye or print due to their structure, requiring external printing treatments. In contrast, the introduction of chlorine into the plastic bags' material structure weakens their crystallization effect, resulting in higher product transparency. The addition of chlorine also makes the material itself polar, making it easier to color and print. As a result, the plastic bags become more versatile and efficient in their use.