Is Frozen BOPP Packing Tape sticky enough? - Blog

As a supplier of Frozen BOPP Packing Tape, I often encounter a common question from customers: "Is Frozen BOPP Packing Tape sticky enough?" This question is crucial as the adhesive strength of the tape directly impacts its performance in various packaging applications. In this blog post, I will delve into the factors that determine the stickiness of Frozen BOPP Packing Tape and provide insights to help you make an informed decision.

Understanding Frozen BOPP Packing Tape

Before we discuss the stickiness of Frozen BOPP Packing Tape, let's first understand what it is. BOPP (Biaxially Oriented Polypropylene) is a type of plastic film that is widely used in packaging due to its excellent mechanical properties, clarity, and printability. Frozen BOPP Packing Tape is made by applying an adhesive layer to a BOPP film substrate. The "frozen" aspect refers to the tape's ability to maintain its adhesive properties in cold temperatures, making it suitable for use in refrigerated or frozen environments.

Factors Affecting the Stickiness of Frozen BOPP Packing Tape

The stickiness of Frozen BOPP Packing Tape is influenced by several factors, including the type of adhesive used, the surface properties of the substrate, and the environmental conditions. Let's take a closer look at each of these factors:

Type of Adhesive

The adhesive is the key component that determines the stickiness of the tape. There are several types of adhesives used in Frozen BOPP Packing Tape, including natural rubber, synthetic rubber, and acrylic. Each type of adhesive has its own unique properties and performance characteristics.

Natural Rubber Adhesive: Natural rubber adhesives are known for their high initial tack, which means they stick quickly to surfaces. They also have good flexibility and are suitable for use on irregular surfaces. However, natural rubber adhesives may lose their stickiness over time, especially in high-temperature or humid environments.
Synthetic Rubber Adhesive: Synthetic rubber adhesives offer improved resistance to heat, humidity, and aging compared to natural rubber adhesives. They also have good adhesion to a wide range of surfaces, including plastics, metals, and paper. Synthetic rubber adhesives are commonly used in industrial packaging applications where long-term adhesion is required.
Acrylic Adhesive: Acrylic adhesives are known for their excellent clarity, weather resistance, and long-term adhesion. They have a high initial tack and can bond to a variety of surfaces, including low-energy surfaces such as polypropylene and polyethylene. Acrylic adhesives are often used in applications where a clear and permanent bond is required, such as in the packaging of consumer goods.

Surface Properties of the Substrate

The surface properties of the substrate also play a crucial role in determining the stickiness of the tape. The tape needs to be able to wet out the surface of the substrate in order to form a strong bond. If the surface is rough, dirty, or oily, the tape may not be able to adhere properly.

Surface Roughness: Rough surfaces provide more surface area for the adhesive to bond to, which can improve the adhesion of the tape. However, if the surface is too rough, the tape may not be able to conform to the surface, resulting in poor adhesion.
Surface Cleanliness: The surface of the substrate needs to be clean and free of dirt, dust, and oil in order for the tape to adhere properly. If the surface is dirty or oily, the adhesive may not be able to wet out the surface, resulting in poor adhesion.
Surface Energy: The surface energy of the substrate is a measure of its ability to attract and hold the adhesive. Low-energy surfaces, such as polypropylene and polyethylene, have a low surface energy and are difficult to bond to. High-energy surfaces, such as metals and glass, have a high surface energy and are easier to bond to.

Environmental Conditions

The environmental conditions, such as temperature and humidity, can also affect the stickiness of the tape. Extreme temperatures and high humidity can cause the adhesive to lose its stickiness or become brittle.

Temperature: The temperature of the environment can have a significant impact on the performance of the tape. In cold temperatures, the adhesive may become stiff and lose its flexibility, resulting in poor adhesion. In high temperatures, the adhesive may become soft and flow, resulting in a loss of adhesion.
Humidity: High humidity can cause the adhesive to absorb moisture, which can weaken the bond between the tape and the substrate. In addition, humidity can also cause the tape to become sticky and difficult to handle.

Testing the Stickiness of Frozen BOPP Packing Tape

To ensure that the Frozen BOPP Packing Tape has sufficient stickiness for your application, it is important to test the tape under the actual conditions of use. There are several methods that can be used to test the stickiness of the tape, including the peel test, the shear test, and the loop tack test.

Peel Test: The peel test measures the force required to peel the tape from a substrate at a specific angle and speed. This test is commonly used to evaluate the initial tack and the long-term adhesion of the tape.
Shear Test: The shear test measures the force required to slide the tape along a substrate under a specific load. This test is commonly used to evaluate the resistance of the tape to shear forces.
Loop Tack Test: The loop tack test measures the force required to separate a loop of tape from a substrate. This test is commonly used to evaluate the initial tack of the tape.

Our Frozen BOPP Packing Tape Products

At our company, we offer a wide range of Frozen BOPP Packing Tape products that are designed to meet the needs of various packaging applications. Our tapes are made with high-quality BOPP film substrates and advanced adhesives to ensure excellent adhesion and performance.

2inch 50mm Paper Core BOPP Adhesive Packing Tape: This tape is made with a 2-inch (50mm) paper core and a high-quality BOPP film substrate. It is available in a variety of widths and lengths and is suitable for use in a wide range of packaging applications.
Solvent-based Acrylic Packaging Tape: This tape is made with a solvent-based acrylic adhesive that offers excellent adhesion and weather resistance. It is suitable for use in industrial packaging applications where long-term adhesion is required.
Crystal Clear BOPP Packing Tape Factory: This tape is made with a crystal-clear BOPP film substrate and a high-quality acrylic adhesive. It is suitable for use in applications where a clear and permanent bond is required, such as in the packaging of consumer goods.

Conclusion

In conclusion, the stickiness of Frozen BOPP Packing Tape is influenced by several factors, including the type of adhesive used, the surface properties of the substrate, and the environmental conditions. To ensure that the tape has sufficient stickiness for your application, it is important to test the tape under the actual conditions of use. At our company, we offer a wide range of Frozen BOPP Packing Tape products that are designed to meet the needs of various packaging applications. If you have any questions or would like to learn more about our products, please feel free to contact us. We look forward to working with you to find the perfect packaging solution for your needs.

References

ASTM International. (2021). Standard Test Methods for Peel Adhesion of Pressure-Sensitive Tape. ASTM D3330/D3330M-21.
ASTM International. (2021). Standard Test Method for Shear Adhesion of Pressure-Sensitive Tapes. ASTM D3654/D3654M-21.
ASTM International. (2021). Standard Test Method for Loop Tack of Pressure-Sensitive Tapes. ASTM D6195-21.