Plastic bags, as the name suggests, are made from plastic materials and are widely used in daily life and production to package goods. Many customers often do not know how to choose the right plastic packaging bags. On one hand, they are unclear about the material of these bags, and on the other, they lack knowledge about the selection process and the manufacturing techniques involved. Some customers also worry about the safety, hygiene, and environmental impact of plastic packaging. Below, we will address each concern in detail.
Common plastic bags are typically made from high-density polyethylene (HDPE) or low-density polyethylene (LDPE), both of which are non-toxic and safe for food storage. However, there is also a type made from polyvinyl chloride (PVC). While PVC itself is non-toxic, the additives used during production can sometimes be harmful, making it unsuitable for food packaging. Therefore, it's important to choose the right type of film depending on its intended use.
Plastic packaging bags can be divided into four main types based on their materials: 1. High-pressure polyethylene bags; 2. Low-pressure polyethylene bags; 3. Polypropylene bags; and 4. Polyvinyl chloride bags. Each type has different applications and properties.
High-pressure polyethylene bags are commonly used for food packaging such as cakes, candies, snacks, and powdered products. They are also used for fiber and textile packaging. Low-pressure polyethylene bags are ideal for garbage bags, shopping bags, and fresh-keeping bags. Polypropylene bags are mostly used for clothing and textile packaging, while PVC bags are often used for cosmetics, documents, and luggage.
In addition to material, the way the bags are made also varies. These include three-side sealed bags, middle-sealed bags, folded middle-sealed bags, and self-supporting bags. Choosing the right style depends on the product being packaged and the usage scenario.
Custom-made plastic packaging is a complex process that requires careful consideration of various factors, including production needs, packaging requirements, transportation, and sales. Companies like Changzhou Haorun Packaging Materials Co., Ltd. specialize in creating tailored plastic packaging solutions. With a dedicated R&D team, they can help you design and select the most suitable packaging options for your products.
When ordering custom plastic bags, it’s essential to specify your requirements clearly—such as thickness, size, material, and printing color—as these all affect the final price. Accurate specifications allow for more precise cost estimation.
To determine the correct size, it's helpful to look at similar products in the market. You can visit local stores, check out similar items, and measure the dimensions of the packaging. This includes the width, height, and edge width of the bag. For more complex designs like folded or flat-bottomed bags, additional measurements may be needed.
Choosing the right material is crucial. The ideal packaging material should consider printability, barrier performance (water, oxygen, and light resistance), heat-sealing capability, and ease of manufacturing. It should also account for the weight and form of the contents—whether it's powder, granules, or liquid—and the capabilities of the production equipment. Transportation and retail conditions also play a role in material selection. Therefore, it’s often best to consult with a professional manufacturer who can provide expert guidance and recommendations.
At Changzhou Haorun Packaging Materials Co., Ltd., we have advanced testing equipment and experienced professionals who can assist you in selecting the most suitable packaging materials. We aim to provide high-quality, customized solutions that meet your specific needs.
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