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Aluminum foil paper refers to the paper from aluminum foil lining paper and aluminum foil paper pasting. Soft and easy to change, as paper, and after deformation does not rebound. It can be used qualitatively to ensure the shading, non-dropping, light-proof, pollution-free and cheap. It is used for moisture-proof and decorative packaging of high grade cigarettes, candies and other food.
The use of aluminum foil paper is very extensive, for example: airline food packaging, ordinary meat packaging, cigarette packaging and so on. The experts divided it into more than 20 varieties according to its application characteristics. The consumption structure of aluminum foil varies greatly in different countries due to the different economic development levels. In developed countries in Europe and the United States, the packaging of aluminum foil products accounted for 70 percent of total demand. In the Chinese market, aluminum foil is mainly used as raw material for industrial manufacturing, and packaging aluminum foil accounts for only 30% of the total domestic demand. Although aluminum foil packaging development, but rapid market growth, the prospects of attention.
Aluminum foil paper is quite remarkable in construction application, and the surface pasted on the insulating material makes it more convenient, clean and beautiful to reach a new height. But different types of aluminum foil effects vary greatly, such as fireproof and common is not a level.
As a kind of industrial raw material, aluminum foil paper is mainly used in packaging protection, household goods, construction, etc. The initial development of dacheng of hebei langfang is a common application type in architecture, which is mostly used in industrial buildings. Aluminum foil paper is a new kind of industrial material. Will replace more single material, widely used in various soft packaging. With the development of economy, China is bound to become the world's most important market for packaging. The development prospect of aluminum foil packaging is very extensive .
In order to set up the enterprise image, enhance brand value, and at the same time in order to meet the demands of anti-counterfeiting, cigarette industrial enterprise in at the same time, to ensure the quality of cigarette inner lining is more and more importance on cigarette packaging, the development and utilization of the aluminum foil paper, on which the printing graphic, from cigarette foil into illustrated, colorful, moistureproof the anti-counterfeiting function and some new development period.
The aluminum foil paper printed with pictures and texts produced by China's cigarette industry enterprises has a common feature, that is, most of the printed parts or full plates printed in Chinese, hanyu pinyin or English are printed on the front or the back, and some are printed with enterprise logo. If specially designed for a certain brand of aluminum foil paper not only printed the name of the factory, but also printed the brand name and decoration patterns. Specifically, it can be divided into the following categories.
One is on the front of aluminum foil printed with the name of the factory or the abbreviation and enterprise logo. For example, the cigarette produced by BENGBU cigarette FACTORY has the name "BENGBU tobacco FACTORY" and the English logo "BENGBU CIARETTE FACTORY" printed on its aluminum foil. For cigarettes produced by HUAIYIN cigarette factory, the aluminum foil paper printed with the words "HUAIYIN cigarette factory", "HUAIYIN" and enterprise logo.
One is the aluminum foil paper front or the reverse side printed full version of Chinese, Chinese pinyin or English factory names, some also printed enterprise logo. For example, ningbo cigarette factory produced cigarettes, its aluminum foil printed on the front full version of the Chinese pinyin factory name; For cigarettes produced by kunming cigarette factory, the front of the aluminum foil paper printed with the full version of the English factory name; The cigarettes produced by yuxi cigarette factory are printed on aluminum foil with the hongta group logo and the name of the company in English. The cigarettes produced by the tobacco factory of the yizhong tobacco (group) co., LTD. Are printed on aluminum foil with the group logo and the Chinese name.
One is specially made aluminum foil paper for a brand, which is characterized by a full plate name, brand name and brand logo on the front or the back of the foil paper. For example, the "seven wolves" cigarette of longyan cigarette factory, whose aluminum foil printed on the reverse side of the plate "seven wolves" logo; The "state guest" cigarettes of chuxiong cigarette factory are printed on the reverse side of the aluminum foil paper with the words "state guest produced by hongta group · chuxiong cigarette factory" and its trademark pattern. "DAHONGYING" cigarette of ningbo cigarette factory, its aluminum foil paper on the front with full version of the Chinese pinyin factory, printed on the back with "DAHONGYING" Chinese pinyin and trademark patterns.
Another type of cigarette aluminum foil printed with advertising characters, such as the fine 88 "red river" and the fine 99 "red river" cigarette of honghe general cigarette factory, the aluminum foil on the reverse side of the full version of "red river cigarette companion red fire" advertising text.
It is also common in industrial applications, such as the series of cables used to make sywv75-5.
Aluminum foil paper belongs to the category of special paper in label printing. Aluminum foil paper labels mainly use laminated aluminum foil paper, including:
Laminated aluminum foil (English name and translation: laminated foil paper)
1. Bright silver foil
2. Matte silver foil
3. Matte gold foil
4. Coated coated paper (English name and translation: semigloss elite fascover)
Prospects for development
Introduction of several key aluminum foil products
(I) air-conditioning foil
Air conditioning foil is a special material used to manufacture heat exchanger fins for air conditioners. In order to improve the surface performance of the element foil, anti-corrosion inorganic coating and hydrophilic organic coating were applied before forming hydrophilic foil. Hydrophilic foil accounted for 50% of the total air conditioning foil, and its use ratio will be further improved. There is also a hydrophobic foil, so that the fin surface has a hydrophobic function to prevent condensation water from sticking. As the technology of improving the surface defrost of hydrophobic foil needs further research, the actual production is very few.
The thickness of air conditioner foil is 0.1mm ~ 0.15mm. With the development of technology, the air conditioning foil has a further thinning trend, and the thickness of the dominant product in Japan is 0.09mm. In the extremely thin condition, aluminum foil must have good formability, its structure and performance must be uniform, metallurgical defect is few, anisotropy is small, simultaneously request strength is higher, ductility is good, thickness is even, flatness is good. The specification and alloy of air conditioner foil is relatively single, which is suitable for mass production, but its market seasonality is strong. For professional manufacturers of air conditioner foil, it is difficult to solve the contradiction of short supply in busy season and almost no demand in off-season.
Driven by the strong market demand, the production capacity and technical level of China's air-conditioning foil has been continuously improved, and a large, medium, medium and low production of air-conditioning foil groups have been formed. The product quality of some large enterprises, such as north China aluminum and bohai aluminum, has basically reached the international advanced level. Because domestic production capacity is excessive, market competition is extremely intense.
(2) cigarette wrapping foil
In our country is the world's largest cigarette production and consumption power, our country has 146 large cigarette factories, an annual output of 34 million large amount of cigarette box, basically using cigarette foil packaging, 30% by spraying foil, 70% use rolling aluminum foil, aluminum foil rolling consumption of 35000 tons, with improvements in people's health consciousness and imported cigarettes, smoke foil significantly slow the growth of demand, is expected to increase slightly. China's cigarette packaging foil accounts for 70% of the total amount of double-zero foil. There are two or three domestic enterprises that can produce high-quality tobacco foil, and the technical level is equivalent to the international level. However, there is a certain gap between the overall quality of domestic tobacco foil and the international level.
(iii) decorative foil
Decorative foil is a decorative material applied in the form of aluminum - plastic composite, which makes use of the characteristics of good pigmentation and high photothermal reflectivity of aluminum foil. Mainly used for building, furniture decoration and part of gift box packaging. The application of decorative foil in China's construction industry started in the 1990s, and spread rapidly across the country from central cities such as Shanghai, Beijing and guangzhou, with a sharp increase in demand. It is generally used as decorative materials for building walls and indoor furniture, and is also widely used in the facade and interior decoration of commercial institutions.
Decorative foil with thermal insulation, moisture-proof, sound insulation, fire and easy to clean, and luxurious appearance, processing convenient, construction installation speed. China's construction, home decoration industry has formed decoration foil application fever. With the rapid development of China's construction industry and the constant popularization of decorative foil application, the demand for decorative foil will also increase substantially. In addition, gift wrapping with decorative foil is very popular in foreign countries, and the development speed in China is very fast, which is expected to have a good prospect .
Advantages of carbon - coated aluminum foil in lithium battery applications
1. Inhibit cell polarization, reduce thermal effect and improve multiplier performance;
2. Reduce the internal resistance of the battery and significantly reduce the dynamic internal resistance growth of the circulation process;
3. Improve consistency and increase the cycle life of the battery;
4. Improve the adhesive force of active substances and collecting fluid, and reduce the manufacturing cost of polarides;
5. Protect the collecting fluid from corrosion by electrolyte;
6. Improve the processing performance of lithium iron phosphate and lithium titanate.
Coating thickness on both sides: type A 4 ~ 6 (m), type B 2 ~ 3 (m).
The surface treatment of the conductive substrate of the battery using functional coating is a breakthrough technology innovation. The carbon aluminum foil/copper foil coating is to evenly and delicately coat the dispersed nano conductive graphite and carbon coated particles on the aluminum foil/copper foil. It can provide excellent static electrical conductivity, collect microcurrent of active material, thus can greatly reduce the contact resistance between positive/negative material and collector, improve the ability of adhesion between the two, reduce the amount of adhesive used, and further improve the overall performance of the battery. Coating is divided into two types: water - based (water agent system) and oil - based (organic solvent system).
Performance advantage of carbon aluminum foil/copper foil
1. Significantly improve the usage consistency of the battery pack and greatly reduce the cost of the battery pack. Such as:
· significantly reduce the growth rate of dynamic internal resistance of the cell;
· improve the pressure difference consistency of battery pack;
· extend battery life;
· significantly reduce battery pack costs.
2. Improve the adhesive adhesion of active materials and fluid collection, and reduce the manufacturing cost of polarides. Such as:
· improve the adhesion of positive electrode materials and collector in water-based system;
· improve the adhesion of nanometer or submicron positive electrode materials and collector;
· improve adhesion of lithium titanate or other high-capacity negative electrode materials and collector;
· improve the qualification rate of wafer production and reduce manufacturing cost.
3. Reduce polarization, improve multiplier and gram capacity, and improve battery performance.
· for example, partially reduce the proportion of adhesive in active materials and increase the gram capacity;
· improve the electrical contact between the active material and the collecting fluid;
· reduce polarization and improve power performance.
4. Protect fluid collection and extend battery life. Such as:
· prevent collector corrosion and oxidation;
· improve the surface tension of the collector and enhance the easy coating performance of the collector;
· replace the high cost etching foil or replace the original standard foil with a thinner foil