Factors affect TPU tape elasticity

TPU elastic tapes are widely used in the garment industry for their elasticity, but many customers may find a feature of TPU tape: its level of elasticity can vary. Why TPU tapes have different elasticity? What factors affect the stretch level? Here we list some reasons.

As we know, TPU elastic tape has a simple composition, with TPU serving as the sole material. The choice of TPU material plays a pivotal role in determining the elasticity of the resulting tapes.

Firstly, different brands of TPU material can yield elastic tapes with varying levels of elasticity. The source and quality of TPU material contribute significantly to the overall performance of the elastic tapes. For example, when in the same hardness, TPU tape made of the raw material of BASF will be softer and higher stretchy than TPU tape made of Taiwan material.

Even within the same brand, TPU materials with different hardness levels can produce elastic tapes with varying degrees of elasticity. Higher hardness in the raw material generally results in less elastic TPU tapes. For instance, with the same brand, TPU tape made of raw material of 70A will be softer than that made of 85A material.

Next, the thickness of TPU elastic tape is another factor influencing their elasticity. Tapes produced from the same brand and hardness of TPU material will exhibit less elasticity if they are thicker. Thinner TPU tapes tend to be more elastic compared to their thicker counterparts. The thickness of the band directly affects its ability to stretch and provide the desired level of elasticity.

In summary, the elasticity of TPU elastic tape is influenced by a combination of factors, including material selection, material hardness, and tape thickness. Manufacturers seeking optimal elasticity should carefully balance these factors, considering the quality of TPU materials, adjusting hardness levels, and experimenting with band thickness. Understanding these dynamics allows for the production of TPU elastic tape that meet specific elasticity requirements in various garment applications.