A complete classification of plastic packaging bags and their applications

As we all know, competition among similar products in the market is very fierce. To stand out from the crowd, we must work hard on how to attract consumers' attention. Therefore, product packaging is not only a means to enhance consumers' desire to buy, but also a reflection of brand culture. Unique packaging is both a brand logo and a silent spokesperson for the product. While promoting products and brands, it also affects consumers' purchasing desire, which can be described as a win-win situation.

With the continuous upgrading of plastic packaging bag production technology, plastic packaging bags are no longer what they were when they were first invented. In order to meet people's ever-growing needs, various plastic packaging bags have begun to enter our daily lives. The types of plastic packaging bags are also increasing. Today, let Shunxingyuan Packaging, a professional flexible packaging manufacturer, introduce the classification of plastic packaging bags and their respective application ranges.

Flat Bag Flat bags are generally used for industrial packaging. Due to different sealing methods, flat bags can also be made into gusset bags (R bags), which are one of the most commonly customized and widely used plastic bags by plastic bag manufacturers.

Self-adhesive Bag Self-adhesive bags, also known as adhesive bags or pressure-sensitive adhesive plastic bags, are mainly used in stationery, jewelry, and food industries. Mainly using OPP and PE as the main raw materials, self-adhesive bags have excellent printing effects, making them suitable for processing into beautiful product packaging, such as header bags, garment bags, and bread bags. The product is very transparent, the most transparent among the plastic bag materials, and the resulting self-adhesive bags are like mirrors. However, the product is relatively brittle, not very tough, and easily torn, so it is generally sealed with an adhesive sticker. For products with larger volumes or heavier weights, an environmentally friendly edge is usually added to prevent cracking.

Header Bag Header bags are also called mother-and-child bags. A header bag generally consists of two parts: the bag itself and the header, which serves as an "advertising space" to promote or attract consumers' purchasing desire.

Gusseted Bag: Gusseted bags have excellent sealing, acid and alkali resistance, and are non-toxic. Functions: dustproof, moisture-proof, and leak-proof. Applications: hardware, jewelry, electronics, medicinal materials, supermarkets, snack shops, tea, stationery, toys, printing, leather goods, etc. Using PE gusseted bags to pack food can prevent moisture-sensitive snacks, food, and medicinal materials from becoming damp and soft, maintaining their original texture and taste. For example, roasted potato chips, broad beans, biscuits, melon seeds, fried dough twists, codonopsis, balloon flower, notoginseng, and other moisture-sensitive foods and medicinal materials, as well as tea.

Hanging Bag Hanging bags are divided into oblique hanging bags and flat hanging bags. They are generally used in the garment bag industry, commonly found in various brand clothing stores and dry cleaners. Their main function is to provide dustproof, waterproof, and other functions, often used to cover suits, jackets, and other clothes, commonly seen in dry cleaners and clothing stores.

Bubble Bag Bubble bags are made of low-density polyethylene and are a commonly used transparent flexible packaging material with a wide range of applications. The principle is to use a film to contain air to form bubbles to prevent product impact, ensuring that the product is protected from vibration, and also has heat insulation and heat preservation functions, suitable for various industries and different product packaging or turnover use! Because the intermediate layer of the air cushion film is filled with air, it is light, elastic, and has sound insulation, shock absorption, and anti-abrasion properties. It is waterproof, moisture-proof, and pressure-resistant.

Quad Seal Bag Quad seal bags, also known as square bottom bags, are generally made of LDPE (high-pressure low-density) and LLDPE (linear low-density) blown into tubes by a blow molding machine, and then sealed and bagged by a bag-making machine. Tube materials can also be sold directly, and customers can cut and seal them as needed when using them. PE bags can be divided into flat bags, gusset bags, and square bottom bags according to the manufacturing process; according to whether they are printed, they can be divided into blank bags and printed bags; according to whether they are anti-static, they can be divided into ordinary and anti-static types. Product performance: the material feels relatively soft, and the thickness can be adjusted freely.

Courier Bag Courier bags are classified into courier plastic bags, courier document envelopes, courier bubble bags, and courier gusseted bags. There are two main types of courier bags in the market: one is brand new courier bags (such as SF Express bags, FedEx bags, and ZTO Express bags), and the other is recycled courier bags (such as those used by small courier companies like Lianhaotong). 2. Courier document envelope materials: generally use gray-bottomed white cardboard, white cardboard, and cowhide cardboard. The courier industry generally uses paper weighing 200 grams/square meter to 450 grams/square meter. Courier document envelopes have the advantages of being flat and not easily damaged compared to courier plastic bags.

Vest Bag Because its shape resembles a vest, it is called a vest bag, also known as a waistcoat bag or convenience bag. It is mainly used in supermarkets, department stores, shopping malls, convenience stores, wholesale markets, grocery stores, etc. Generally, PO is used as the main raw material. Vest bags are simple to make and have a wide range of uses. They have become an indispensable necessity in daily life, providing great convenience for people.

Handle Bag Handle bags, shopping bags, and advertising gift bags are generally made of PO (i.e., HDPE high-density polyethylene) or PE (i.e., LDPE low-density polyethylene). Bags made of PO material have lower gloss and a slightly harder texture. When shaken gently, a rustling sound can be heard; bags made of PE plastic packaging material have better gloss and a softer texture, and the sound is very small when shaken gently. Both materials are non-toxic, tasteless, and hygienic. Plastic handle bags are generally used in clothing, gifts, jewelry, stationery, and other industries, and are loved by users for their fashion, convenience, and appearance.

Shrink Bag: Shrink bags in daily life are commonly seen in street food stalls, restaurants, and hotels. They have high transparency, excellent shrinkage performance, heat sealing performance, good toughness, anti-static properties, and excellent cold resistance. They are a non-toxic, safe, and reliable soft shrink film. This type of product is used in many fields and is widely used for the shrink packaging of various regular and irregular products. It is also one of the most common plastic bags in our lives. Others: In addition to the types of plastic bags mentioned above, there are many other classifications, such as composite bags, aluminum foil bags, biodegradable bags, and inflatable bags, etc.

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