How does stick packaging composite film improve the sealing of products?
Publish Time: 2025-05-06
Stick packaging is widely used in the packaging of various powder products, such as dietary supplements, beverage powder, milk powder, instant coffee, etc., because of its compact structure, easy to carry and convenient to use. It not only meets consumers' needs for portability and convenience, but also shows unique advantages in product protection. Among them, the sealing performance of stick packaging composite film is one of the key factors that determine product quality and shelf life.
1. Multi-layer composite structure to build an efficient barrier
Stick packaging composite film is usually made of multiple materials through dry compounding or co-extrusion process to form a multi-layer structure with different functions. For example, the outer layer uses PET or PA (nylon) to provide good mechanical strength and scratch resistance; the middle layer is added with aluminum foil or high barrier resin (such as EVOH, PVDC) to effectively block the penetration of oxygen, water vapor and light; the inner layer uses PE or CPP materials with good heat sealing properties to ensure a firm seal and no leakage.
This multi-layer structure is like a "protective wall" that protects the contents from the external environment, especially for products that are easy to absorb moisture, oxidize or are sensitive to light. It has extremely high practical value.
2. Superior barrier performance, extending the shelf life of products
We are particularly good at making stick packaging composite films with barrier layers. These composite films have stronger chemical resistance and gas barrier capabilities. Compared with ordinary single-layer films, they can more effectively prevent oxygen, moisture and odor in the air from invading the interior of the package, thereby significantly delaying the product deterioration process.
Take milk powder or protein powder as an example. Once these products are damp, they are very easy to clump and even breed bacteria. The use of high-performance barrier composite films can greatly reduce the moisture absorption rate, keep the product dry and loose, and improve the consumer experience. Similarly, when packaging instant coffee, good oxygen barrier performance can also help retain aroma components and avoid flavor loss.
3. Stable heat sealing performance to ensure packaging airtightness
During the molding process of stick packaging, the films on both sides need to be firmly bonded by high-temperature heat sealing to form a sealed bag. High-quality composite films should have good heat-sealing adaptability, that is, they can achieve fast and firm sealing in a wide temperature range, and are not prone to problems such as false sealing and leaking sealing.
Our stick packaging composite film has been optimized to ensure excellent heat-sealing performance on high-speed automatic packaging lines. Even if it is squeezed or vibrated during transportation and handling, it can maintain a good sealing state and eliminate the risk of leakage of contents.
4. Lightweight design, taking into account environmental protection and cost control
It is worth mentioning that stick packaging can save up to 40% of packaging materials compared to traditional bag packaging, which not only helps to reduce the cost of raw material procurement and transportation, but also conforms to the current development trend of green packaging. By reducing unnecessary material waste, companies can achieve a win-win situation of economic benefits and environmental responsibility while ensuring product quality.
5. Personalized printing to enhance brand recognition
In addition to excellent sealing performance, we can also provide customers with high-quality printing services. Equipped with a nine-color high-speed gravure printing machine, it can achieve exquisite printing effects with bright colors and clear patterns, which not only enhances the visual appeal of the product, but also provides strong support for brand promotion. Whether it is the product name, nutritional information table, or brand image logo, they can all be accurately presented on the composite film, further enhancing the purchasing desire of end consumers.
Stick packaging composite film has shown excellent performance in improving product sealing due to its multi-layer composite structure, excellent barrier properties, stable heat sealing properties, lightweight design and personalized printing capabilities. It is particularly suitable for powdered foods, health products and daily chemical products that have high requirements for freshness, moisture resistance and oxidation resistance. Choosing high-quality stick packaging composite film can not only effectively extend the shelf life of the product, but also improve the overall packaging efficiency and brand image. It is an ideal choice for modern packaging solutions.
