1235 Basic characteristics of blends and fit points of cigarette packaging
1235 alloys 6 micron aluminium foil are aluminum alloy materials widely used in the packaging industry. The main reason why it can occupy an important position in cigarette packaging is that its unique physical and chemical properties are highly compatible with the stringent requirements of cigarette packaging. This alloy consists mainly of aluminum, contains very little impurity elements and has a purity of more than 99.35%, hence the name "1235". Its thickness is typically between 0.006 mm and 0.2 mm, has excellent flexibility and flexibility, and can be easily processed into packaging containers of various complex shapes. For cigarette packaging, the material can not only fit perfectly around the edges and corners of cigarette boxes, but also maintain stable mechanical properties on high-speed packaging production lines.
As a specialty consumer product, cigarette packaging must fulfill multiple functions such as product safety, extended shelf life, anti-counterfeiting and moisture-proof, and brand display. 1235 aluminium foil micron thickness Of particular note are the barrier properties of the blend, which can effectively isolate the effects of external factors such as oxygen, water vapor, and light on cigarette quality.
Experimental data showed that the moisture-proof performance of cigarette packaging using 1235 6 micron aluminium foil blend as a coating is more than 80% compared to plain paper packaging, and the shelf life of cigarettes can be extended to more than 18 months without affecting the flavor. In addition, the material is non-toxic and tasteless, fully meets the safety standards of food grade packaging, and has no adverse effects on cigarette flavor.
In actual applications, the 1235 alloy 6 micron aluminium foil basically serves cigarette packaging in two forms: one used as a lining material in combination with an external paper box, and the other directly used as an all-metal packaging box. When used as a coating material, the 1235 alloy is usually made into a very thin foil (about 0.006-0.01 mm thick) and attached to the inside of a cigarette paper box to form an invisible protective barrier. This "paper-aluminum composite" structure retains the printability and feel of paper packaging, and achieves the superior protective performance of metal products. Well-known domestic cigarette brands such as Zhonghua and Yuchi usually use this packaging form for their high-end product lines.
All-metal packaging boxes are more common on high-end gift cigars or limited-edition cigars. Here, the 1235 alloy not only plays a protective role, but also becomes an important carrier for displaying the high-end image of the brand. The high surface finish of the 1235 alloy 6 micron aluminium foil makes it easy to perform various finishing processes, such as wire drawing, mirror polishing, laser engraving, etc., which can achieve luxurious effects that plain paper packaging cannot achieve. Notably, the processing performance of the 1235 blend allows designers to create cigarette boxes with various special shapes, such as round, polygonal and even bionic shapes, which greatly enriches the design language of cigarette packaging. The metal cigarette box series launched by the international luxury brand has become a popular item among collectors due to the use of the specially formed 1235 alloy.
Advantages of 1235 Aluminium foil blends over other packaging materials
Compared to traditional cigarette packaging materials, the 1235 Aluminium foil blend shows multiple irrefutable advantages. The first is anti-counterfeiting demonstration. 1235 alloys can be precisely combined with anti-counterfeiting technologies such as laser holography and micro-text to form a composite anti-counterfeiting system that is difficult to imitate. For example, a certain brand printed microtext on the blend casing that could only be identified with a magnifying glass, greatly raising the threshold for counterfeiting. The second is environmental performance. Although aluminum production requires energy consumption, the 100% recyclable nature of the 1235 alloy makes it perform well in full life cycle assessments. The data show that recycling and reusing one tonne of 1235 alloy requires only 5% of the original manufacturing energy, and there is no performance degradation.
In terms of cost-effectiveness, although the unit price of the 1235 blend is higher than that of ordinary packaging materials, the cost of its widespread use may be lower. On the one hand, the very thin thickness (about a tenth of a hair's diameter) makes the amount of single packaging material very small; On the other hand, it brings more value by extending the shelf life of the product and increasing the added value of the brand. Comparative testing by a tobacco company showed product return rates due to moisture content after using the 1235 alloy lining
The manufacturing process of 1235 aluminium foil micron thickness directly affects their final performance in cigarette packaging. Every link from the aluminum ingot casting to the final foil formation must be precisely controlled. At first, high-purity aluminum raw materials must be used in the melting stage and the amount of impurities such as iron and silicon must be strictly controlled. In general, the iron content should be less than 0.35% and the silicon content less than 0.1%, to ensure flexibility and ductility of the alloy. Temperature control is particularly critical in the hot rolling process, usually maintained between 300-400°C. Too high a temperature will cause coarse grains to affect strength, and too low a temperature will increase processing difficulties. The cold rolling process gradually rolls the sheet several millimeters thick into ten micron foil. During this period, multiple rolling and intermediate annealing treatments are required to eliminate the phenomenon of work hardening. Production data from a large aluminum company show that the 1235 alloy aluminum foil for cigarette packing production line using the latest temperature control technology can control product thickness tolerances within ±0.0005 mm, much better than the industry standard.
The surface treatment process is another key factor that determines the visual impact and performance of 1235 mix packaging. Current mainstream surface treatment methods include corona treatment, coating composites and transfer coatings. Corona treatment can improve the surface strength of mixtures, enhance adhesion by printing inks, and make packaging patterns more vivid and durable; The application of food-grade water-based coatings addresses the safety concerns of direct contact of metal products with tobacco; And transfer coating technology can present a variety of effects such as mirror, matte, and texture on the alloy surface. It is important to note that the "soft touch" coating technology that has emerged in recent years, by applying a special resin layer to the surface of the 1235 blend, gives the metal packaging a delicate leathery touch, greatly improving the consumer experience of high quality cigarettes. Commemorative cigarettes released by a certain brand use this process, and market feedback shows that 83% of consumers believe that this packaging significantly improves the product's grade perception.
From a global market perspective, the application of the 1235 aluminum foil for cigarette packing blend in cigarette packaging shows clear regional differences and consumer stratification. Due to strict environmental regulations and anti-smoking policies, the 1235 blend is mainly used in the European and US markets for the packaging of high-end cigars and specialty tobacco products, accounting for about 15% of the total packaging volume; The 1235 blend is mostly used in liner packaging in the Asia-Pacific region, especially in the Chinese market, with a market share of more than 40%, which is closely related to the importance Chinese consumers place on cigarette freshness and packaging texture. According to market research data, 67% of Chinese smokers believe cigarettes with metal coatings are "more superior", and 54% of consumers believe cigarettes with such packaging "taste better". This perception has prompted many brands to use 1235 alloy packaging as an important selling point for product upgrades. After a well-known brand switches to an alloy lining, its product premium capacity increases by 25%.