In the process of customization and use of plastic bags, the choice of thickness is a crucial decision, which is directly related to the performance of the bag, the cost and the protection effect of the product. The following is a number of key aspects to analyze the selection of plastic bag thickness points.

First, product characteristics determine thickness requirements

Weight and volume: For products with large weight or volume, such as rice, flour and other foods, as well as some industrial parts, it is necessary to choose a thicker plastic bag. The thicker bag has a stronger carrying capacity, can withstand the weight of the product, and prevent the pressure from breaking during handling and storage. In general, such products may require the use of plastic bags with a thickness of more than 0.05 mm.

Shape and texture: Products with irregular shape or sharp texture, such as meat with bone, hardware tools, etc., are easy to puncture or scratch the packaging bag. In order to avoid this situation, plastic bags with larger thickness and better toughness should be selected. For example, the bag for packing frozen ribs is usually made of plastic material about 0.08 mm thick to resist the damage of the sharp edges and corners of the ribs to the bag.

Product sensitivity: Products that are sensitive to environmental factors such as humidity and oxygen, such as electronic products, pharmaceuticals, etc., need packaging bags with good barrier properties. Thicker plastic bags are often more advantageous in barrier performance, and can effectively block the influence of external environmental factors on the product. Taking the packaging of electronic products as an example, plastic bags with special barrier layers about 0.1 mm thick may be selected to ensure that the performance of the product is not interfered with by factors such as moisture and oxidation.

Second, the use scenario affects the thickness decision

Transportation and storage conditions: If the product needs to be transported for a long distance or stored for a long time, the external force and environmental changes faced by the packaging bag are more complex. In this case, choosing a thicker plastic bag can better protect the product. For example, plastic packaging bags for export goods, taking into account the bumpy and possibly humid environment of sea transport, usually use thicker materials, up to 0.12 mm thick or even thicker.

Frequency of use: For plastic bags that need to be reused many times, such as some bags for storage, the thicker material can ensure that it still maintains good performance after repeated use and is not easy to break. The thickness of this kind of bag is generally between 0.06-0.08 mm.

Thrid, balance between cost factors and thickness

Material cost: The thickness of the plastic bag directly affects the cost of the material, the greater the thickness, the more plastic raw materials used, the higher the cost. On the premise of meeting the needs of product packaging, the thickness should be reasonably controlled to reduce costs. For example, for some lightweight, regular shape and packaging bag performance requirements are not high, such as ordinary stationery packaging, you can choose a thickness of 0.03-0.05mm plastic packaging bag, both to ensure the packaging effect, but also to control costs.

Comprehensive cost considerations: In addition to the cost of materials, it is also necessary to consider the loss cost caused by product damage due to the insufficient thickness of the packaging bag. If the product is damaged during transportation or storage because the packaging bag is too thin, the economic loss may far exceed the cost increase caused by increasing the thickness of the packaging bag. Therefore, it is necessary to comprehensively weigh all aspects of the factors, choose a plastic bag thickness that can meet the needs of product protection and make the total cost optimal.

The selection of plastic bag thickness needs to comprehensively consider many factors such as product characteristics, use scenarios and cost factors, and through scientific and reasonable decision-making, ensure that the packaging bag effectively protects the product while achieving the best economic benefits.