WHAT ARE THE ADVANTAGES OF HEAT SHRINK PACKAGING
Excellent performance of the heat shrinkable film
The heat-shrinkable film is a thermoplastic film that is stretched and oriented during the production process and shrinks by heat during use. The principle of the heat-shrinkable film is making use of the energy of the film stretched in the longitudinal or transverse direction in the high-elastic state stored in the film and the memory effect of thermoplastics on the shape before bidirectional or unidirectional stretching. It uses the function of restoring the shape before stretching to achieve the purpose of packaging. Heat shrink packaging, using shrink wrap machines, is a packaging method widely used in commodity packaging, which can be used to package various types of products. It has the characteristics of transparency, container, sealing, moisture-proof, simple process and equipment, low packaging cost and various packaging methods, which are favored by merchants and consumers. As manufacturers increasingly pursue differentiated product competition, the market for heat shrinkable film labels for packaging food, beverages and other consumer foods has developed rapidly.
The shrink film is a good film packaging material, it has the following advantages. 1. Beautiful appearance and close to the product, so it is also called skin-packing, which is suitable for all different types of product packaging. 2. Good protection. You can pack a variety of products in a heat shrinkable packaging bag. Preventing the loss of individual small commodities is also convenient for customers to carry. 3. It is especially suitable for packaging of precision instruments and high-precision electronic components. 4. Choose different resins and formulas. It can produce different mechanical strengths and heat-shrinkable films. It can be used for inner packaging with lower strength and lower weight, and can also be used for mechanical products for containers with higher strength, transport packaging (outer packaging) for building materials, etc. 5. Good anti-theft performance, a variety of food can be packed with a large shrink film to avoid loss.6. Good stability, the product will not fall in the packaging film. 7. Good transparency, allowing customers to directly see the packaged goods for customers to choose products. 8. Good economy, heat shrinkable film packaging is often cheap and with good quality.
Production and application of heat shrinkable packaging
Heat shrink packaging is a very promising form of packaging. At present, there have been cases of using heat shrink packaging to completely replace carton or half-pallet carton. However, due to the immaturity of the current domestic logistics environment, there are some obstacles to the domestic development of heat shrink technology. It is expected that heat shrink packaging will develop rapidly in 3 to 5 years.
The food industry is the largest market for heat shrink packaging. Heat shrinkable film is widely used in the packaging of various fast foods, lactic acid foods, beverages, snacks, beer cans, various alcohols, agricultural and sideline products, dry foods, local specialties, etc. Applications in non-food fields are also increasing, such as labels and caps, seals, fibers and clothing, aerosol products, sports goods, electrical appliances, cosmetics, pharmaceuticals, grease, detergents, stationery, toys, office supplies, kitchen supplies, daily necessities, sundry goods, construction materials, etc.
Shrink film wrapper machineshave different classifications according to different categories. According to the difference of the film, it can be divided into “ pe” film shrink wrap machines and “pof” shrink wrap machines. According to the size of the machine, it can also be divided into fixed shrink film packaging machine and hand-held shrink wrap machine.
PLASTIC CUPS VS PAPER CUPS, WHO WILL DOMINATE THE BEVERAGE MARKET?
On a hot summer day, it is inevitable to go to the drinks shop to buy a cold drink to quench your thirst. But attentive customers will find that different businesses have different choices for beverage packaging, but most of them are paper cups or plastic cups. What kind of cup do you prefer?
Will you choose a plastic cup or a paper cup
People who choose plastic cups say that plastic cups are more transparent, which helps to see the color, turbidity of the drinks, and the amount of supplements added. The voice of opposition gave the following reasons: first, that plastic cups look cheaper and have a bad touch; second, that paper cups are safer, and plastic cups cannot guarantee that they will not produce hazardous substances under high temperature.
As for the appearance of the beverage packaging, the choice is different because each person has different preferences. But for the safety and health issues, whether it is the beverage itself or its packaging, they are the issues that consumers are most concerned about. Which of the disposable plastic cups and paper cups used in the beverage market is safer?
Paper cup production process
Usually disposable paper cups are composed of the following parts: paper, printing ink, industrial paraffin, coated paper. Many manufacturers do not use food grade wood pulp paper for maximum benefit. If the quality of the paper is not good (recycled waste paper), the use of bleaching powder and optical brighteners cannot be distinguished by ordinary consumers. In addition, after the printed paper cups are stacked, the ink is likely to contaminate the inner wall of the paper cup.
In order to make the paper cup waterproof, it usually needs to be soaked in paraffin. The wax contains a harmful substance called "polycyclic aromatic hydrocarbons". Polyethylene plastic film within the scientific name of coated paper. Many paper cups now use coated paper instead of paraffin. But the outer wall of the "protected" cup without paraffin may become moldy when it gets wet, causing contamination.
Production process of plastic cups
Compared with the production process of paper cups, plastic cups are much simpler. The commonly used plastic cup materials are PET, PP, PS and other materials. PET cups are generally used to make coffee cups, and their transparency is relatively high, suitable for cold drinks. The plastic cups used by chain stores like Starbucks are PET materials.
PP is resistant to high temperature, can be heated by microwave, can hold boiling water, and can be used for a long time at normal temperature. PS is not resistant to high temperatures, so it is commonly used in the field of cold beverage packaging. In the production process, plastic cups are healthier than paper cups. Because the production process of plastic cups is simple, it is packaged immediately after forming and cooling at high temperature.
Plastic cups and disposable paper cups have their own advantages and disadvantages. Different industries have different needs for the two, but there is one thing to be sure, we need to use a qualified paper cup machine to ensure the quality of the product.
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DO YOU KNOW THE TYPE OF PAPER CUP?
A paper cup is a paper container made by mechanically processing and bonding raw paper made of chemical wood pulp by a paper cup machine, and the appearance is a cup shape. We can see all kinds of paper cups in life. Do you know the classification and characteristics of paper cups?
Classification of paper cups
Paper cups are divided into single-sided PE coated paper cups and double-sided PE coated paper cups.
Single-sided PE coated paper cups: Paper cups made from single-sided PE coated paper are called single PE paper cups. Most domestic market paper cups and advertising paper cups are single-sided PE coated paper cups. Its manifestation is: the side of the paper cup filled with water has a smooth PE coating;
Double-sided PE coated paper cups: Paper cups made from double-sided PE coated paper are called double-sided PE paper cups, and the expression form is: there are PE coated films on the inside and outside of the paper cup.
Paper cup size: We use ounces (OZ) as the unit to measure the size of paper cups. For example, the common 9 ounce, 6.5 ounce, 7 ounce paper cups on the market, etc. An ounce is a unit of weight, which represents a weight of 1 ounce equivalent to 28.34 milliliters of water. Generally, the commonly used paper cups are disposable paper cups, advertising paper cups, reception paper cups, beverage paper cups, milk tea paper cups, tasting cups and other environmentally friendly paper cups!
Characteristics of paper cups
1. Light weight and anti-breakage. Compared with glass bottles and cups, paper cups are lighter in weight and have no risk of breakage.
2. Low cost: The light weight of the paper cup can save circulation costs.
3. Good appearance effect: The printing and decorating of paper cup is easy to realize, the publicity effect is good, and it can be promoted.
4. The paper cup material can be compounded with various materials to improve the protection function. It is compounded with aluminum foil, plastic and other materials to prevent the deterioration of the contents.
5. Good shading performance, it can better maintain the color, fragrance and taste of the contents. It is easy to open and seal, easy to open and recover.
6. It can be operated by packaging machinery to achieve high-quality and high-speed production and packaging. Paper cup machines have matured to improve paper cup production efficiency and cost savings. It is also easy to dispose of waste and easy to recycle, which can save resources.
7. The emergence of new technologies and new processes has continuously improved the manufacturing technology of paper cups. New types of paper cups will appear and will promote and promote the variety of products.
8. The characteristics of paper cups are safety, hygiene, lightness and convenience. It can be used in public places and restaurants. It is a disposable item.
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