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Spout bag is a new type of plastic flexible packaging developed on the basis of stand up bag, which is mainly divided into two parts: self-supporting and spout. Self-supporting means that there is a layer of film at the bottom to support standing, and the spout is made of new material PE blow molding and injection molding, which fully meets the food grade requirements.

As a printing material, plastic film is used as a packaging bag after printing. It is light and transparent, moisture-proof and anti-oxidant, air-tight, tough and durable, smooth surface, can protect the product, and can reproduce the shape and color of the product. advantage. With the development of petrochemical industry, more and more varieties of plastic film, commonly used plastic film polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polyester film (PET), polypropylene (PP), nylon (PA) and so on. In addition, there are many other types of plastic film. Shunxingyuan Packaging, a professional flexible packaging manufacturer, believes that it is necessary to understand the characteristics of plastic films before customizing packaging bags. ,For reference.

he characteristics of aluminum foil: aluminum foil surface is very clean, sanitary, any microorganisms can not grow on its surface, can directly contact with food without any harm to human health worries. As an opaque packaging material, it has a good protection for products exposed to sunlight, such as oily products, solid drinks, coffee and so on, which are a good packaging material. No matter at high temperature or low temperature, aluminum foil will not be soaked. Air, low water permeability, can well protect the product inside. Aluminum foil itself is not volatile, it itself and packaged food will not dry or shrink, tasteless and odourless packaging materials, will not make packaged food have any peculiar smell. Stable performance, can adapt to a variety of high and low temperature environment storage, a certain degree of corrosion resistance.

There are many materials for composite packaging bags, generally 2 to 4 kinds of materials are compounded, let's talk about the first layer of printing film: BOPP (bright film) BOPP (matt or matte) PET (white film) Nylon (white film) ) Anyone who has made bags knows that the thickness of these materials is also written on the contract. BOPP is the most widely used, and most bags in supermarkets are printed with BOPP. Vacuum material printing film PET and nylon, tea packaging uses PET more, because the price is much cheaper than nylon, nylon is used in boiled or retorted bags, generally fish, meat and other cooked foods pass 90 degrees to Nylon is used for high-temperature sterilization at 120 degrees. Of course, the ink is also high-temperature resistant ink.

PVC has non-flammability, high strength, weather resistance and excellent geometric stability, and has strong resistance to oxidizing agents, reducing agents and strong acids. In addition, because of its good flexibility, shrinkage and opacity, good processing and labelling performance, strong chemical corrosion resistance, and durability, it is suitable for long-term outdoor use.

POF five-layer co-extruded heat-shrinkable film is a new generation product that is gradually emerging and accepted by people in recent years. Environment-friendly multi-layer co-extrusion polyolefin POF heat shrinkable film, is in the heart of the special equipment for linear low density polyethylene (LLDPE) as an intermediary, a total of polypropylene (PP) as the inner and outer layer, by a special process will be inside, middle and outer layer mutual extrusion, and made of high transparency, high shrinkage rate and thermal shrinkage film with good heat sealing properties. It has all the advantages and advantages of polyethylene (PE) and polypropylene (PP) at the same time, and its excellent performance is far better than the simple polyethylene (PE) film and polypropylene (PP) film. It is currently widely used in the world and recognized by the European and American market of environmental protection heat shrinkable packaging materials.

Every time a customer comes into contact with a product, the brand can be promoted. When the customer sees the product on the shelf, buys it, unpacks it, uses it, uses it a second time, and gives the product or packaging as a gift to someone else ...... the product becomes the most frequent point of contact between the brand and the customer.

Protect the goods from the invasion and impact of external obstacles, such as the impact, vibration, heavy pressure in the process of storage and transportation, as well as high temperature and high humidity or contact with chemical substances and produce deterioration, deformation, or because of the complete loss of commodity use value.

PETG heat shrinkable film has the highest shrinkage rate among all shrinkable films, and its application range is much higher than that of other shrinkable films. The made shrink label has the best shrink effect that any commercial shrink film can't match, and can fit tightly and be highly contoured. The shrinkage rate of up to 80% is realized through customized configuration so that it can fit on special-shaped containers, polygonal containers and circular containers without defects after shrinkage, and even small parts such as bottleneck can be tightly wrapped. Once fitted, its superior strength and toughness can prevent the risk of bottle explosion. The strong shrinkage force can prevent the label from falling off, and keep the shrinkage rate unchanged throughout the product life cycle, so as to avoid damaging the best packaging appearance. It allows your product to shrink to a perfect fit and fit impeccable.

Heat shrink polyester film in addition to being used for shrinkable labels, in recent years also began to be used in the outer packaging of daily goods. Since it can not only protect the packaging goods to avoid impact, rain, moisture, rust, but also make the product with exquisite printing packaging to win users, at the same time, it can well show the excellent image of the manufacturer. At present, more and more packaging manufacturers use printed shrink film to replace the traditional transparent film. Because printing shrinkage film can improve the appearance of the product grade, is conducive to product advertising, can make the trademark brand in the hearts of consumers have a deep impression.

The germination of packaging design can be traced back to the primitive era when people used shells, bamboo tubes, gourds, banana leaves, animal skins and other containers as packaging to store food; In modern times, packaging design is no longer just a simple function. The role of practicality and protection of commodities, commodity packaging is usually associated with commodities and has become an important factor in determining the attributes and value of commodities.

FDA is authorized by the U.S. Congress, which is the highest law enforcement agency specializing in food and drug management.

The number of composite material, thickness, viscose type (except co-extrusion) is an important factor affecting the price of composite bags. Retort Packaging aluminum foil composite bags, for example, its various materials to high temperature resistance, viscose to high temperature, so it is more expensive than ordinary aluminum foil composite bags.

In the "anti-plastic" wind prevailing today, the kraft paper bag is favored by more and more industries and enterprises, began to use it to replace plastic bags, shopping bags and so on for packaging products, this is because the kraft paper bag has general soft plastic packaging bags do not have the advantage.

Retort pouch is a kind of composite plastic film bag that can be heated. It has the advantages of both canned containers and boiling water resistant plastic bags. Food can be left untouched in the pouch, after high temperature (generally 120~135℃) sterilization heating, take out can be eaten. Retort pouch is widely used, different specifications of the packaging bag for the selection of base material and raw materials are different.