With the continuous upgrading of the manufacturing technology of plastic packaging bags, plastic packaging bags are not what they were originally invented. In order to meet people's growing demand, various plastic packaging bags begin to enter our daily life. There are more and more types of plastic packaging bags. Today, let shunxingyuan, a professional flexible packaging manufacturer, popularize the classification of plastic packaging bags and their respective application scope.
Flat pocket: flat pocket is generally used for industrial packaging, because different sealing methods of flat pocket can also be made into wire bag (R bag), which is one of the most frequently customized plastic bags by plastic bag manufacturers, and also one of the most used plastic bags.
Self-adhesive bag: self-adhesive bag is also called adhesive bag and self-adhesive plastic bag. It is mainly used in stationery, jewelry, food and other industries. OPP and PE are mainly used as the main production raw materials, and the printing effect of self-adhesive bags is very good, so it is suitable for processing into beautiful product outer packages, such as Chuck bags, clothing bags, bread bags, etc. The product is very transparent, which is the most transparent among the types of plastic bags. The self-adhesive bags made are like mirrors. However, the product is relatively crisp, the toughness is not good enough, and it is easy to be torn. Therefore, it is generally sealed in the form of adhesive paste. If the product is large in volume or heavy in weight, environmental protection edge is generally added to prevent cracking.
Chuck bag: Chuck bag is also called mother and child bag. The card head bag is generally divided into two parts, one is the bag and the other is the card head, which is equivalent to an "advertising space" for promoting or attracting consumers' purchasing desire.
Bone bag: the bone bag has excellent sealing performance, acid and alkali resistance, and is non-toxic. Function: dustproof, moisture-proof, and leakage-proof. Application Scope: hardware, jewelry, electronics, medicinal materials, supermarkets, snack bars, tea, stationery, toys, printing, leather goods, etc. Using PE bone mouth plastic bags to pack food can prevent moisture-fearing snack food and medicinal materials from softening due to damp and maintain the essential taste. For example, roasted potato chips, broad beans, biscuits, melon seeds, twist, codonopsis pilosula, Platycodon grandiflorum, Tianqi and other cold food medicinal materials can also be used to contain tea.
Hook bag: Hook bag is divided into oblique hanging bag and flat hanging bag. It is generally used in the clothing bag industry and is commonly used in clothing stores and dry cleaners of various brands. Its main function is to prevent dust, dust, water and other functions. It is often used for suits, jackets and other clothes, and is commonly used in dry cleaners and clothing stores.
Bubble Bag: bubble bag is made of low density polyethylene, which is a kind of transparent flexible packaging material widely used at present. Its principle is that the film contains air to form bubbles to prevent the product from hitting, to ensure that the product is protected when it is shocked, and also has the function of heat preservation and insulation, which is suitable for different product packaging or turnover in all walks of life! Because the middle layer of the air cushion film is full of air, it is light and elastic, and has the properties of sound insulation, shock resistance and abrasion resistance. It is waterproof, moisture-proof and pressure-resistant.
Square bag: square bag, also known as Square bottom bag, is a plastic packaging bag made of LDPE (high-pressure low-density) and LLDPE (linear low-density), which is blown out by a film blowing machine and then sealed by a bag making machine. It can also be directly sold and cut and sealed by customers according to their needs when using it. PE bag can be divided into flat bag, folding bag and square bottom bag according to the manufacturing process; It can be divided into blank bag and printing bag according to whether it is printed or not; It can be divided into ordinary bag and anti-static bag according to whether it is anti-static. Product performance: the material feels soft and the thickness can be adjusted freely.
Express bags: Express bags are classified into plastic bags, sealed documents, Bubble Bags and bone bags. There are two types of express bags in the market: one is all-new express bags (such as SF Express bags, Federal Express bags, home express bags, etc.), the other is recycled express bags (such as the express bags used by small express companies such as lianhaotong) 2. The sealing materials of express documents: Generally, they are gray white paperboard, white cardboard, Kraft paper, and most of them. The express industry generally uses 200g/square meter to 450g/square meter weight of paper. Compared with the plastic bags, the seal of express documents has the advantages of being flat and not easy to be broken.
Vest bag: it is called vest bag, also called vest bag and convenience bag, because its shape is similar to the vest worn by people. It is mainly used in supermarkets, department stores, shopping malls, convenience stores, wholesale markets, grocery stores and other places. Generally, PO is used as the main production material. The vest bag is simple to manufacture and has a wide range of uses. It has become an indispensable necessity for people in daily life and provides great convenience for people.
Handbags: Handbags, shopping bags and advertising gift bags are generally plastic bags made of PO (I .E. HDPE high density polyethylene) or PE (I .E. LDPE low density polyethylene). The bag made of PO material has low glossiness and a slightly hard texture. You can hear the sound when you shake it with your hands; The bag made of PE plastic packaging material has good glossiness and soft texture. You can shake it with your hands and the sound is very low. These two materials are non-toxic and tasteless, sanitary and safe. Plastic handbags are generally used in clothing, gifts, accessories, stationery and other industries, because they are fashionable, convenient and beautiful, and are deeply loved by users.
Shrink bags: shrink bags in daily life are common in food stalls, restaurants, restaurants, etc. It has the characteristics of high transparency, shrinkage performance, excellent heat sealing performance, good toughness, anti-static, excellent cold resistance and so on. It is a non-toxic, safe and reliable soft shrink film. This kind of products are used in many fields and are widely used in various regular and irregular product shrink packaging. It is also one of the most common plastic bags in our life. Others: in addition to the types of plastic bags mentioned above, there are many metaphors of plastic bags, such as composite bags, aluminum foil bags, bio-degradation bags, inflatable bags, etc.