In fact, pure paper packaging materials in the beverage is difficult to use, we said the beverage paper packaging, almost all of which refers to the composite material of paper. Composite paper packaging in beverages, especially non-carbonated beverages are very widely used. Dairy products is the largest application area, fruit juice, tea and coffee are the most varieties of beverages using composite paper packaging.
At present almost all the larger domestic milk, fruit juice, tea beverage manufacturers have paper packaging products on the market.
The typical composite paper packaging used in the beverage industry are Tetra Pak and Comet boxes that use ultra-high-temperature sterilization processes, as well as International Paper or Shikoku's Roof Packs that require refrigeration.
In the composite structure, the use of ultra-high-temperature sterilization process of Tetra Pak or Comet box of packaging materials require high, generally using paper / plastic / aluminum foil and adhesive layer of the 7-layer composite structure to ensure that can withstand ultra-high-temperature instantaneous sterilization, and strictly block the intrusion of air, water. The ultra-high temperature sterilization of beverages or dairy products, also known as "aseptic packaging", can be stored at room temperature, and shelf life of up to one year or more.
Ultra-high temperature sterilization of beverage packaging can be preserved at room temperature, very adaptable to the status quo of our cold chain is not complete, so the development of China is very rapid. However, the ultra-high temperature sterilization process in bringing convenience at the same time also have an impact on the taste of beverages, will destroy or change the inherent flavor of beverages. Therefore, in recent years, to the international paper industry's roof package as the representative of the paper composite packaging surged.
Relatively speaking, International Paper's paper packaging structure is relatively simple, due to the processing technology does not need to withstand ultra-high temperatures, generally for the paper/plastic 4-layer structure, there is no aluminum foil layer, and the barrier is not as high as the 7-layer. The products need to be refrigerated, and the shelf life is generally no more than 40 days. However, the taste of the beverage is maintained better, and the loss of nutrients is less. Especially with the continuous improvement of China's cold chain and sales environment, as well as consumers' requirements for the taste of beverages improved, freshly packed paper-packed beverages began to be popular in large cities. Although the proportion of paper packaging fresh drinks can not be compared with ultra-high-temperature sterilization of beverages, but from the international development and the recent development trend in China, fresh drinks will be the focus of the future development of China's packaged beverages
Talking about corrugated board and honeycomb cardboard
newmaker
In recent years, with the increasingly high environmental protection calls, consumer demand for cushioning packaging materials is also increasing. Consumers' demand for cushioning packaging materials is also getting higher and higher. Serious environmental pollution problems have led to the widespread use of environmentally friendly packaging materials such as corrugated cardboard and honeycomb board in the market at present. However, because honeycomb board has the advantages of reasonable structure, light weight, high strength, etc., Losing Rules, and corrugated board as a competitor. In fact, corrugated cardboard and honeycomb cardboard have their own advantages and disadvantages, so the future of the two will be how to develop is a question worth pondering.
Characteristics of corrugated cardboard
Corrugated cardboard is a widely used paper instead of wood, especially for commodity packaging. According to the shape of the corrugated can be divided into u, v, uv-shaped corrugated.
According to the structure of the corrugated layer cross-section can be divided into A, B, C, D, E five kinds of corrugated cardboard. According to the number of corrugated layers can also be divided into one layer, double layer, three layers, five layers, seven layers of cardboard (i.e., triple corrugated cardboard). The main features of corrugated cardboard are:
(1) Corrugated boxes made of corrugated cardboard are usually shipped in folded or flat form, which is easy to handle, improves transportation efficiency and saves storage space.
(2)The production cost of corrugated cardboard boxes is low, and it saves materials.
(3) High strength and good buffer performance can avoid the collision and impact of the packaged goods, which is especially suitable for the transportation and packaging of heavy products such as machinery and electromechanical products.
(4) The production of corrugated boxes can be carried out on highly mechanized and automated, high-efficiency equipment, with high work efficiency.
Characteristics of honeycomb cardboard
Honeycomb cardboard is made according to the structural principle of honeycomb in nature, which is a new type of laminated structure of corrugated cardboard by connecting the corrugated cardboard with adhesive bonding method to form countless hollow three-dimensional hexagonal shapes, forming a whole stressing member - the paper core - and gluing the surface paper on both sides of the cardboard to make a new type of sandwich structure. Environmental protection and energy saving materials. The main features of honeycomb paperboard are:
(1) Light weight, less material, low cost. The honeycomb sandwich structure has the largest strength/mass ratio compared with various other panel structures, thus its manufactured products have a good performance/price ratio, which is the key to the success of honeycomb paperboard.
(2) High strength, flat surface, not easy to deform. Honeycomb sandwich structure is nearly isotropic, good structural stability, not easy to deform, and its outstanding pressure resistance and bending resistance is the most important characteristics of box packaging materials need.
(3)Good impact resistance and cushioning. Honeycomb paperboard made of flexible paper core and face paper, with good toughness and resilience, unique honeycomb sandwich structure provides excellent cushioning performance, in all the cushioning material has a higher value of energy absorption per unit volume, high thickness of the honeycomb paperboard can be a substitute for the large number of EPS plastic foam cushioning pads are now used.
(4) Acoustic and thermal insulation. Honeycomb sandwich structure inside the closed chamber, which is full of air, so it has a very good acoustic insulation performance.
(5) No pollution, in line with the modern trend of environmental protection. Honeycomb paperboard is made entirely of recyclable paper materials and can be 100% recycled after use.
The scrap and corner remnants of the corrugated box production process can also be die-cut and glued together to make various shapes of honeycomb corrugated cardboard cushioning pads. Even if they are discarded and not used, they can also be degraded and absorbed by nature, making them a good green packaging material. In Europe and the United States, the timber packaging required for goods imported from China must be fumigated, and honeycomb cardboard, as a new type of environmentally friendly material, can fully meet the requirements of Europe and the United States and other countries on the packaging of goods imported from China.
The structural development of corrugated board has reached its limit
After nearly 150 years of effort and practice worldwide, corrugated board technology has deepened. Now the development of corrugated board has reached its limit, as shown in the following:
(1) Corrugated specifications are basically finalized. There are A, B, C and E types of corrugated structures, and the corrugated boxes produced are mainly used for corrugated color printing carton packaging. It has become common sense to choose the right type of corrugated cardboard for different corrugated requirements.
(2) The production of corrugated boxes has been mechanized. Since the British invented corrugated, the production of corrugated boxes has developed from the original handmade primitive production to automated production, and the quality and style of the products produced have fully met the requirements of market users for corrugated boxes.
(3) Marketization of corrugated box production. The production of corrugated cartons has fully entered the market. The carton industry has formed a "centralized system of boards", "decentralized system of boxes" of the professional division of labor, and what we need to do in the future is to improve the level of professional division of labor.
(4) There is a serious surplus of corrugated boxes. The corrugated carton industry has been outpacing economic development.
Corrugated technology is not a highly sophisticated science, and the process of manufacturing corrugated machinery to produce corrugated cartons is not very complex. After high-grade corrugated production lines and advanced back-channel printing and slotting machinery were put into use, there was a surplus of supply and demand for corrugated cartons. Nationally, excessive equipment, under-starting, fierce competition, low efficiency and industry turmoil have led to a long-term serious surplus in corrugated box production. Some people claim that corrugated boxes have a strong vitality and that corrugated boxes occupy an important position in the overall packaging. But the reality must be recognized, corrugated technology after a century and a half of development, has entered the old age, must seek new vitality.
The structural development of honeycomb cardboard has been difficult
China's honeycomb cardboard development technology began in the 1980s, and after more than a decade of hard work, there has been a breakthrough in China's honeycomb cardboard technology. However, although China's honeycomb cardboard development prospects, but the problem can not be ignored, honeycomb cardboard and corrugated cardboard development there is still a big gap between. At present, the development of honeycomb paperboard is restricted mainly by the following problems: First, the integrity of China's honeycomb paperboard production line, stability, processing accuracy, appearance quality, compared with the advanced level abroad, there is still a big gap. Low degree of automation of production equipment, some processes are still manual work, low production efficiency. Especially honeycomb paperboard products molding processing equipment is relatively simple, and some are even still blank.
The level of molding technology processing is to ensure the quality of paper honeycomb products is an important link. Honeycomb paperboard and corrugated cardboard molding process is different, the former is more demanding and difficult. Corrugated cardboard indentation, die-cutting, grooving, edge sealing, bonding, Ell,~0, stapling and other processes can be resolved in the mechanical equipment to complete, while the honeycomb cardboard in the process of molding products, such as indentation, edge sealing, moisture, flatness, smoothness and other aspects of the problem, the production of honeycomb cardboard products, surface roughness, poor color, insufficient grade, it is difficult to reach the standardization and serialization, and it is difficult to meet the needs of users. It is difficult to standardize and serialize and meet the needs of users. Therefore, the honeycomb paperboard molding and processing technology is still an important factor in suppressing the development of honeycomb paperboard. In addition, honeycomb paperboard waterproof, moisture-proof problem has not been well solved. Packaging boxes and trays made of honeycomb paperboard are weakened by moisture and cannot withstand impact and vibration. In the ability to resist the intrusion of foreign objects, corrugated cardboard is several times higher than honeycomb cardboard. And honeycomb cardboard into a box is difficult, there is no suitable supporting equipment, it is difficult to scale up the production of cardboard boxes.
The second is the market problem. At present, the market for honeycomb cardboard is still relatively vague. Affect the development of the market is first of all the price problem, the price of honeycomb paperboard is actually not much cheaper than wood packaging; affect the market and the effect of wood instead of the problem, the main use of honeycomb paperboard is a tray, cushioning liner, and waterproof, moisture and other technical issues have not yet been well resolved, affecting the effect of the use of.
Third, poor business service consciousness. Some paper honeycomb enterprises are eager for quick success, short-sighted, low management level, not only do not pay attention to product quality, exaggerated hype, substandard, and do not pay attention to after-sales service, can not give customers timely technical and technological support, resulting in a negative impact.
Corrugated cardboard and honeycomb cardboard performance comparison
The face paper and core paper are the same, the amount of paper used is the same, and the adhesive bonded between the core layer and the face paper is the same as that of the corrugated cardboard and honeycomb cardboard to do the performance test.
By the data specified by the chemical:
(1) honeycomb paperboard flat compressive strength is much higher than corrugated board, and in the case of a certain amount of consumables, the flat compressive strength of honeycomb paperboard decreases as the aperture increases.
(2) The lateral compressive strength of honeycomb paperboard decreases with the increase of aperture diameter; the lateral compressive strength of corrugated paperboard is much higher than that of honeycomb paperboard, while the lateral compressive strength of transverse is lower than that of honeycomb paperboard.
(3) The bending strength of honeycomb board is higher than that of corrugated board, and its bending strength increases with the increase of aperture.
(4) The peel strength of corrugated board is higher than that of honeycomb board; the peel strength of honeycomb board increases with the decrease of aperture.
(5) There is basically no big difference between the puncture strength of honeycomb board and corrugated board.
From the above analysis, it can be seen that the development of corrugated cardboard and honeycomb cardboard today, one has reached the limit, a difficult step, so it is necessary to develop new horizons. If the corrugated cardboard and honeycomb cardboard joint use, you can play the advantages of corrugated cardboard and honeycomb cardboard, its composite cardboard side compression strength and flat compression strength can be improved. In addition, in the production of packaging boxes, if the corrugated cardboard box as the box body, the box upper and lower four walls with honeycomb cardboard as a liner, you can improve the box's shockproof, compression resistance, heat preservation, resistance to puncture ability and load-bearing capacity. Therefore, at this stage, corrugated cardboard and honeycomb cardboard can not be competitors with each other, but should be in the production and application of partners.
Corrugated board and honeycomb board have their own advantages. To summarize, the advantages of corrugated cardboard lie in the following: strong strength, mature products, and abundant talents, but enterprises are overproducing, and there is an urgent need to develop new markets. The advantages of honeycomb cardboard lie in the following: large market, new products and good benefits, but the enterprises are not large in scale, not fast in development and have many difficulties, and they hope to receive strong support from the corrugated cardboard industry. Therefore, the two should be combined, complement each other's strengths, *** with the development, which is the inevitable trend of scientific development