Knowledge of heat shrinkable film's transportation advantages.

Heat shrinkable film should pay attention to the following aspects during transportation:

Stay away from heat sources. Avoid sun and rain. Prevent collision and extrusion. Make sure the package is complete. There are many kinds in heat shrinkable film, and each kind has its own characteristics. The small heat-shrinkable packaging equipment made in heat shrinkable film according to the standard has the characteristics of simple operation, wide application range, good sealing, high transparency and low cost, and is suitable for the packaging of small and medium-sized products.

It is often seen in our daily life, such as supermarket food packaging bags, shopping bags and so on. Heat shrinkable film is widely used, which fully shows the importance of heat shrinkable film in our daily life. Heat shrinkable film has a corresponding influence in the market, with people paying more and more attention to heat shrinkable film, especially to heat shrinkable film's packaging technology. With the continuous improvement of technology, heat shrinkable film packaging technology also has new application modes and areas.

Heat shrinkable film has the following advantages:

1. heat shrinkable film with different mechanical strength and functions can be produced by selecting different resins and formulas, which can be used for inner packaging with low strength and light weight, and also for transportation packaging (outer packaging) of mechanical products and building materials for containers with good strength;

2, close to the appearance of goods, can be applied to the packaging of goods of various shapes, and the contents of the packaging are common;

3, a variety of commodities can be packaged in a heat-shrinkable packaging bag to prevent the loss of individual small commodities, which is also convenient for customers to carry;

4, good transparency, allowing customers to directly see the packaged goods, which is convenient for customers to choose goods;

5, anti-theft, excellent dustproof;

Heat shrinkable film is a popular new packaging material, which has good transparency and toughness, and is not afraid of impact, corrosion and low water vapor transmission. There is also an ideal shrinkage rate. When the film is subjected to temperature, it automatically shrinks and tightly wraps the goods, thus protecting the goods, and also playing the functions of moisture-proof, mildew-proof, rust-proof, pollution-proof, pre-injury prevention and theft prevention.

Commodity storage stability, simple packaging technology and equipment, easy to realize automatic shrink packaging. Heat shrinkable film is used for the sale and transportation of various products, and its main function is to stabilize, cover and protect products. Heat shrinkable film should have good puncture resistance, good shrinkage and good shrinkage stress. In the process of shrinkage, the film cannot produce holes. Because heat shrinkable film is often used outdoors, it is necessary to add UV-resistant agent.

Heat shrinkable film's production principle: The stable state of polymer chains tends to be curled. When the polymer is in a high elastic state when heated and melted, the orientation of the polymer chain is stretched and straightened under the action of external force, and the orientation state of the polymer chain is frozen after rapid cooling reaches the glass transition temperature. When the temperature rises again, the polymer chain tends to be stable and curls, which is macroscopically manifested as contraction. According to its shrinkage principle, there is no chemical change, so it is called "physical reducibility". Blow-molding heat shrinkable film is made by using the above principle, and it is made after twice inflation and rapid cooling.

Heat shrinkable film bag is a kind of heat shrinkable material in heat sealing packaging. Through hot air blowing, the high-transparency heat-shrinkable film can cling to the surface of the article, so as to improve the product grade, prevent dust and moisture, and make the article show a new packaging effect. Heat shrinkable film packaging, easy to learn.

The heat shrinkable label is mainly gravure printing, and the printed graphics and texts are bright in color and good in saturation. Because it can decorate the packaging container closely, it can highlight the appearance of the goods and enhance the appearance decoration of the goods, which can produce a good shelf effect. In the process of labeling, the label and container can be integrated without using adhesive, which can realize the large-scale on-line operation of goods and reduce the production cost.

Shrinkage film is widely used in the packaging of various fast food, lactic acid food, beverages, snacks, beer cans, various wines, agricultural and sideline products, dry food, local products and so on. The initial investment of gravure printing is high, but gravure printing plate is not afraid of high printing power and low relative cost, which makes it the primary selection of shrink film printing. And the graphic part on the printing plate is concave, so it can get rich ink layer, gorgeous color and rich level.