It is a packaging and storage product that combines practicality and aesthetics. Made of semi-transparent frosted material and featuring a durable zipper closure design, it is suitable for various scenarios.

The OPP ice cream transparent bags are made of food-grade biaxially oriented polypropylene (OPP) material, specially designed for frozen foods such as ice cream, popsicles, and ice cream bars. With high transparency, low-temperature resistance, moisture-proof and oil-proof properties, they ensure the freshness and hygiene of the products while enhancing the brand display effect.

The production of eight-sided sealed coffee bags first requires the selection of appropriate materials. Common materials include OPP, PE, CPP, PET, nylon, pure aluminum, and aluminum-coated materials, etc. The choice of these materials will affect the barrier performance, heat sealing performance, moisture-proof performance, and transparency of the packaging bag. For example, pure aluminum or aluminum-coated materials can provide good oxygen and light barrier properties, while nylon materials have high strength and toughness.

Eight-sided sealed coffee bags are usually printed to increase the product's attractiveness and brand recognition. The printing process includes electro-engraving copper plate high-speed printing, which can achieve high-definition pattern and text printing.

Vacuum bags, also known as nylon bags, are mainly made of NY/CPE or PET/NY/CPE. This product features excellent vacuuming effect, high transparency, low oxygen permeability, superior moisture-proof performance, high tensile strength and puncture resistance, as well as good heat-sealing and sealing properties. It is not prone to aging and is suitable for products such as hardware and electronic components that require vacuum packaging.

Aluminum foil zipper bags are a packaging solution that combines high barrier properties, sealing performance and convenience. They are made of multi-layer composite materials. The front is designed with a transparent window (usually made of PET or transparent PE), which can directly display the contents while retaining the light-blocking and moisture-proof characteristics of aluminum foil. They are widely used in the packaging needs of the food, pharmaceutical, electronic components, cosmetics and other industries.

Coffee bag with air valve is a kind of bag designed for storing coffee beans, with one-way exhaust valve function, can effectively lock the freshness of coffee. ‌

Product characteristics
‌ one-way exhaust valve ‌ : This design makes the gas can only be discharged one-way, can not enter, so as to prevent the coffee beans from moisture and oxidation, maintain its freshness and aroma ‌
‌ eight-side seal design ‌ : The bag adopts the eight-side seal design, which is not only stable, but also can effectively isolate the air to ensure the best preservation of the coffee beans ‌
‌ moisture and anti-oxidation ‌ : The eight-sided sealing bag with air valve can effectively prevent moisture and oxidation and extend the shelf life of coffee beans ‌.
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OPP bag is a kind of plastic bag made of polypropylene as raw material, with the following characteristics:
Good sealing: The tightness of the new OPP film is more than twice that of its traditional film, which helps to moisturize and preserve the product2.
Strong anti-counterfeiting: the use of synthetic technology and special printing technology to improve the difficulty of counterfeiting 2.
Environmental protection: The raw materials used in OPP bags are degradable materials, which meet international environmental standards 2.
OPP bags are widely used in jewelry, jade, stationery, toys, tableware, kitchen utensils, clothing and other fields, especially in the outer packaging of commodity sales, which can protect products and improve beauty

The biggest feature of kraft paper is that it has high tensile strength and breaking strength, flexible and strong, and can withstand greater tension and pressure without breaking. The primary color kraft paper also has better processing properties such as embossing, die-cutting and die-carving. At the same time, it is relatively resistant to water, which makes it useful in some humid environments or scenes where moisture is required

Barrier performance improvement: the composite of matte film, aluminum plating and PE can synthesize the barrier performance of the three. The aluminized layer can effectively block the penetration of light, ultraviolet rays and gases, and the matte film can further enhance this blocking effect, while PE can prevent the penetration of substances such as moisture, thereby extending the shelf life of the packaged item. For example, for some drugs or foods that are sensitive to light and oxygen, this composite film can provide better protection.
Both appearance and practicality: the matte effect brought by the matte film makes the appearance of the package more textured and improves the grade of the product. The metallic luster of the aluminized layer increases the visual appeal of the package, while the utility of PE ensures the flexibility and durability of the package during use. 

The outer material is usually pure pulp kraft paper, kraft paper can be divided into white kraft paper and yellow kraft paper. Part of the window kraft paper outer layer will be double subfilm, which makes it waterproof, for example, in some frosted window kraft paper products have this design.
In order to moisture-proof, the inner layer is often coated, like the kraft paper products with transparent Windows, and the inner layer of the coating can play a good moisture-proof effect

Laser film is a new type of coating material, which has the characteristics of ultra-strong abrasion resistance, anti-ultraviolet radiation, anti-pollution and anti-scratch.
Laser film has a wide range of applications, such as Windows, screens, lenses, panels, etc. in automotive, construction, electronics and other fields, as well as the shell of scientific and technological products. In addition, in the field of new technologies such as 5G and smart home, laser film also has a very broad application prospect.

High strength: it can withstand a certain external force, and it is not easy to be damaged during transportation and storage.
The extension performance is good, the deformation modulus is large: it can adapt to a certain degree of stretching and deformation without breaking.
Acid and alkali resistance, corrosion resistance: suitable for packaging a variety of products with different chemical properties.
Aging resistance: It is not easy to deteriorate during long-term storage or use, so as to ensure the effectiveness of the packaging.
Good anti-seepage performance: effectively prevent the packaged products from leaking or being invaded by external substances.