What is the heat shrinkage rate of bopp tape jumbo roll supply?
As a supplier of BOPP tape jumbo rolls, I often encounter questions from customers about various technical aspects of our products. One of the frequently asked questions is about the heat shrinkage rate of BOPP tape jumbo rolls. In this blog post, I will delve into what the heat shrinkage rate is, why it matters, and how it relates to our BOPP tape jumbo roll supply.
Understanding the Heat Shrinkage Rate
The heat shrinkage rate is a crucial parameter that measures the percentage of dimensional change a material undergoes when exposed to heat. For BOPP (Biaxially Oriented Polypropylene) tape jumbo rolls, it refers to the reduction in length and width of the tape when heated to a specific temperature for a set period. This rate is typically expressed as a percentage and is an important indicator of the tape's stability and performance under different environmental conditions.
The heat shrinkage process occurs due to the molecular structure of BOPP. During the manufacturing process, the polypropylene film is stretched in both the machine direction (MD) and the transverse direction (TD) to achieve the desired mechanical properties. When the tape is heated, the molecules tend to relax and return to their original, more compact state, causing the tape to shrink.
Why the Heat Shrinkage Rate Matters
The heat shrinkage rate of BOPP tape jumbo rolls has several implications for its practical use. Firstly, it affects the tape's adhesion. If the heat shrinkage rate is too high, the tape may shrink away from the surface it is applied to, leading to reduced adhesion and potentially causing the package to come loose. This is particularly important in applications where the tape is exposed to high temperatures during storage or transportation.
Secondly, the heat shrinkage rate can impact the appearance of the package. Excessive shrinkage can cause the tape to wrinkle or distort, making the package look unprofessional. In industries where aesthetics are important, such as retail packaging, this can be a significant concern.
Finally, the heat shrinkage rate is also related to the tape's durability. A tape with a stable heat shrinkage rate is more likely to maintain its integrity over time, even when exposed to temperature fluctuations. This is crucial for ensuring the long - term protection of the packaged goods.
Factors Affecting the Heat Shrinkage Rate
Several factors can influence the heat shrinkage rate of BOPP tape jumbo rolls. The manufacturing process is one of the most significant factors. The stretching ratio during the biaxial orientation process determines the degree of molecular orientation in the tape. A higher stretching ratio generally results in a higher heat shrinkage rate.
The temperature and time of heat exposure also play a crucial role. Different applications may require the tape to withstand different temperature ranges. For example, in a hot warehouse environment, the tape needs to have a low heat shrinkage rate at elevated temperatures to maintain its performance.
The type of additives used in the BOPP film can also affect the heat shrinkage rate. Some additives can help to stabilize the molecular structure of the tape, reducing its tendency to shrink when heated.
Measuring the Heat Shrinkage Rate
To measure the heat shrinkage rate of BOPP tape jumbo rolls, a standard test method is usually employed. A sample of the tape is cut into a specific size and placed in an oven at a predetermined temperature for a set period. After the heat treatment, the sample is removed from the oven and allowed to cool to room temperature. The dimensions of the sample are then measured again, and the heat shrinkage rate is calculated as the percentage change in length and width compared to the original dimensions.
Our BOPP Tape Jumbo Roll Supply and Heat Shrinkage Rate
At our company, we understand the importance of the heat shrinkage rate in the performance of BOPP tape jumbo rolls. We have invested in advanced manufacturing technology to ensure that our tapes have a stable and low heat shrinkage rate. Our production process is carefully controlled to optimize the stretching ratio and the use of additives, resulting in tapes that can withstand a wide range of temperatures without significant shrinkage.
We offer a variety of BOPP tape jumbo rolls to meet different customer needs. For general packaging applications, our Common BOPP OPP Packing Tape Jumbo Roll provides reliable adhesion and a reasonable heat shrinkage rate. This tape is suitable for a wide range of products and can be used in normal temperature environments.
For customers who require customized solutions, we offer Customized BOPP OPP Packing Tape Jumbo Roll. We can adjust the formulation and manufacturing process according to your specific requirements, such as a lower heat shrinkage rate for high - temperature applications or a specific color and pattern for branding purposes.
Our Super Clear BOPP Adhesive Packing Tape Jumbo Roll is another popular product. It not only offers excellent clarity for a professional look but also has a low heat shrinkage rate, ensuring that the package remains intact and visually appealing even under challenging conditions.
Conclusion
The heat shrinkage rate is an important characteristic of BOPP tape jumbo rolls that affects their adhesion, appearance, and durability. As a supplier, we are committed to providing high - quality tapes with a stable and low heat shrinkage rate. Whether you need a standard tape for general packaging or a customized solution for specific applications, we have the products to meet your needs.
If you are interested in our BOPP tape jumbo roll supply and want to learn more about the heat shrinkage rate and other technical details, please feel free to contact us for a procurement discussion. We look forward to working with you to find the best packaging solutions for your business.
References
- ASTM D2732 - Standard Test Method for Unrestrained Linear Shrinkage of Plastic Film and Sheeting at Elevated Temperatures
- Technical literature on BOPP film manufacturing and properties provided by resin suppliers.
