Plastic bags for express delivery packaging are a commonly used packaging material in the express delivery industry. The following introduces them to you from aspects such as their characteristics, materials, classification, environmental protection issues and improvement measures:
Characteristics
Portability: The plastic bags for express packaging are light in weight and will not add excessive weight to the packages, which helps to reduce transportation costs. For instance, a common small express plastic bag may weigh only a few grams. Compared with other packaging materials, it can effectively reduce the overall weight of the package.
Low cost: The raw material prices for producing plastic bags are relatively low, and the production process is simple, making the cost of plastic bags for express packaging low. This is also one of the important reasons why they are widely used in the express delivery industry.
Water resistance: Most plastic bags have excellent water resistance, which can protect the items inside the package from the erosion of rain and moisture. In case of rainy weather during transportation, plastic bags can provide certain moisture-proof protection for items.
High transparency: Some plastic bags for express delivery packaging have a high degree of transparency, which makes it convenient for express delivery staff to quickly check the items inside the packages, sort and process them.
Material
Polyethylene (PE) : It is the most common material for express packaging plastic bags, which is divided into high-density polyethylene (HDPE) and low-density polyethylene (LDPE). HDPE plastic bags have high hardness and strength, and are often used to make larger-sized express delivery bags that need to bear a certain weight. Plastic bags made of LDPE material are relatively soft and have good transparency, making them suitable for making small packaging bags.
Polypropylene (PP) : It has high heat resistance and rigidity. The plastic bags made from it have good strength and can resist the erosion of chemical substances to a certain extent. However, due to its relatively high cost, its application is not as widespread as that of polyethylene.
Classification
Self-adhesive bag: There is a self-adhesive tape at the bag opening. When in use, just tear off the protective paper on the tape to seal the bag opening. The operation is simple and convenient, and it has good sealing performance. It is often used for packaging small items such as documents and receipts.
Zipper bag: A zipper is installed at the opening of the bag, similar to the zipper bags used in daily life. Zipper bags can be opened and closed multiple times, making it convenient for users to check and take out the items inside the package. They also have good sealing performance and are suitable for packaging items that need to be taken out frequently.
Bubble wrap: It is filled with bubble film inside a plastic bag. The bubble film can play a role in buffering and shock absorption, effectively protecting fragile items inside the package, such as electronic products and glassware.
Environmental protection issues
Difficult to degrade: Most traditional plastic bags for express delivery packaging are made of non-biodegradable plastics. They take hundreds of years or even longer to completely decompose in the natural environment, which leads to a large accumulation of plastic waste and causes serious damage to the ecological environment such as soil and water bodies.
Wildlife hazard: Plastic bags discarded in the natural environment may be mistakenly ingested by wild animals, causing their digestive systems to be blocked and even leading to their death. Meanwhile, plastic bags may also get entangled around wild animals, affecting their activities and survival.
Improvement measures
Biodegradable materials: Research and development and application of biodegradable plastic materials, such as biodegradable plastics, which can be decomposed by microorganisms into water and carbon dioxide in a relatively short period of time in the natural environment, reducing pollution to the environment.
Recycling: Establish a complete plastic bag recycling system, encourage consumers to recycle used plastic bags, and after processing, reprocess them into new plastic products to achieve the recycling of resources.
Reduce usage: Optimize packaging design, minimize the use of unnecessary plastic bags, and promote the use of reusable packaging materials such as cloth bags and cardboard boxes.
With the continuous improvement of environmental awareness, the express delivery industry is also actively exploring more environmentally friendly packaging solutions to reduce the impact of plastic bags in express delivery packaging on the environment.