Plastic bags, as the name suggests, are made from plastic materials and are widely used in daily life and production to package goods. Common types of plastic bags are mostly made from high-density polyethylene (HDPE) or low-density polyethylene (LDPE) films. These films are non-toxic and can be safely used for food packaging. However, there is also a type of film made from polyvinyl chloride (PVC), which, although non-toxic on its own, may contain harmful additives that could be dangerous to human health. Therefore, it's important to choose the right type of plastic bag based on its intended use.
Plastic packaging bags can be divided into four main categories based on their material:
1. High-pressure polyethylene plastic bags
2. Low-pressure polyethylene plastic bags
3. Polypropylene plastic bags
4. Polyvinyl chloride (PVC) plastic bags
Each type has different uses. For example, high-pressure polyethylene bags are often used for food packaging such as cakes, candies, and snacks, while low-pressure polyethylene bags are commonly found in garbage bags, shopping bags, and fresh-keeping bags. Polypropylene bags are typically used for textiles and clothing, and PVC bags are often used for cosmetics, documents, and luggage.
In addition to material, plastic packaging bags can also be categorized by their sealing method, such as three-side sealed bags, middle-sealed bags, folded middle-sealed bags, and self-supporting bags.
When ordering custom-made plastic packaging bags, customers should consider various factors like thickness, size, material, and printing color, as these all affect the final price. It’s essential to clearly specify your requirements when placing an order to ensure accurate pricing.
To determine the correct size for a custom plastic bag, you can refer to similar products in the market. Measuring the dimensions of existing packaging, such as width, height, and edge width, will help you get the right specifications. Special bag types, like folded or flat-bottomed bags, require additional measurements.
Choosing the right material for your packaging is crucial. The material must be suitable for printing, have good barrier properties (such as water, oxygen, and light resistance), and be compatible with heat sealing and bag-making processes. It should also be appropriate for the weight and form of the product being packaged—whether it's powder, granules, or liquid.
At Changzhou Haorun Packaging Materials Co., Ltd., we specialize in custom plastic packaging solutions. Our team of experienced professionals can help you select the best materials and design options for your specific needs. With advanced testing equipment and years of expertise, we ensure that your packaging is both functional and reliable.
Whether you're looking for eco-friendly options or durable solutions, our goal is to provide high-quality, customized packaging that meets your unique requirements. Let us help you create the perfect plastic packaging solution for your products.
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