Cailong

As is well known, in our daily lives, packaging bags can be seen everywhere. Whether in stores, supermarkets, or e-commerce platforms, various kinds of beautifully designed, practical and convenient food packaging bags can be found everywhere. It acts as the protective layer or barrier layer for food, just like the "protective suit" of food.

It's the time of the Dragon Boat Festival again

The fragrance of bamboo leaves fills the air

Guangdong Colorful Dragon New Materials sincerely wishes you

A happy and healthy端午节！

01 The Thousand-Year Wisdom Wrapped in Bamboo Leaves

As the Dragon Boat Festival approaches, the familiar fragrance of bamboo leaves fills the streets and alleys. The custom of making zongzi during the Dragon Boat Festival carries profound historical roots and cultural symbols. The most widely known origin is related to the poet Qu Yuan of the Warring States period. On the fifth day of the fifth lunar month in 278 BC, Qu Yuan committed suicide due to the downfall of Chu. The people, to protect his body from being eaten by fish and birds, wrapped rice in bamboo leaves and threw them into the river, gradually evolving into the traditional custom of making zongzi during the Dragon Boat Festival. Making zongzi not only commemorates him but also embodies a natural belief. Ancient texts record that people wrapped zongzi with mugwort leaves and five-color threads, which originated from driving away the dragons that stole the sacrificial offerings. This reverence and response towards natural forces reflects the ancient people's wisdom of constructing ecological balance through food symbols.

The shape of the zongzi itself is also a cultural symbol. The triangular zongzi symbolizes "three blessings of life", representing health, happiness and longevity; the quadrangular zongzi represents "peace and prosperity in all directions"; the long zongzi metaphorically implies "endless blessings". These geometric shapes become the visual language for the common people to express their ideals of life.

02 The Dual Challenges of Modern Packaging

With the development of the times, zongzi has moved from being handmade by families to industrialized production. To ensure that zongzi can be preserved for a long time and sold throughout the country, packaging technology has become extremely important.

Currently, there are various packaging forms for zongzi on the market. Among them, vacuum packaging is quite common, which can be further divided into plastic bag vacuum packaging and aluminum bag vacuum packaging. Aluminum bag vacuum packaging has unique advantages: the aluminum foil has excellent barrier properties, not only can it block oxygen and microorganisms, but also effectively block light. However, although the aluminum bag has good barrier properties, it is completely opaque, and consumers cannot see the contents, resulting in the "sealed package" problem. So, how to solve this problem?

03 Breakthrough Innovation of Colorful Dragon Alumina Film

The high-barrier alumina film developed by Guangdong Color Dragon New Materials has brought a brand-new possibility to the packaging of zongzi. The transparent high-barrier PET alumina film is made by depositing a layer of transparent alumina AlOx on the surface of (PET) substrate, providing extremely high oxygen and moisture barrier properties and excellent performance in maintaining the aroma of the contents for a long time. It can effectively prevent the invasion of oxygen and water vapor.

When applied to the packaging of zongzi, the Color Dragon ultra-high barrier alumina film demonstrates its core advantages:

► Ultra-high barrier performance

·High barrier eco-friendly packaging material with excellent oxygen and moisture-blocking capabilities. The oxygen and moisture-blocking performance of the regular model is within "double 1", while the high barrier model can achieve "double 0.5" or better barrier performance, effectively preventing the intrusion of oxygen and moisture. This is particularly important for high-fat zongzi, as it can significantly inhibit the "rancid smell" produced by fat oxidation.

► Excellent transparency

·High transparency, with a light transmittance of ≥89%. Consumers can directly observe the shape and color of the rice dumplings. This solves the "stuffy bag" problem of traditional aluminum bags and enhances purchasing confidence. The transparent design better meets the current trend of national culture packaging needs, facilitating the integration of traditional elements such as dragon boats and ink wash paintings, and enhancing the festive atmosphere.

►High coating adhesion

·The coating adhesion is greater than 3.0N/15mm, featuring excellent printing and composite properties, superior processing performance, wide application range, and can replace packaging materials such as KPET, KBOPP, KBOPA, VMPET, SiOx, BOPA, aluminum foil, EVOH, and co-extruded films.

►Microwaveable heating

·Microwaveable heating is possible and can be detected by a metal detector.

04 The Perfect Combination of Tradition and Modernity

Currently, the packaging of zongzi is showing three major trends: small size, low-carbon trend, and national trend. The color-coated aluminum film technology with high barrier properties perfectly aligns with these development directions. As the representative of a new generation of high barrier materials, the color-coated aluminum film, with its advantages such as transparency, high barrier properties, and microwave heating capability, demonstrates great potential in the high-end zongzi market.

As consumers put zongzi in their shopping carts, modern technology and traditional cuisine are perfectly integrated at this moment. The color-coated aluminum film not only preserves the freshness of zongzi but also continues the vitality of the Dragon Boat culture. When every household unfastens the粽绳， the taste passed down for thousands of years is more reassuring and wonderful under the technological protection.