Overview of Materials and Applications of Breathable Cotton Sports Tape

Breathable cotton sports tape is a material product made of cotton fibers, widely researched and applied in sports, medicine, and daily life. Due to its natural properties, cotton fibers possess relatively stable performance indicators in the fields of textiles and materials science. In recent years, researchers have conducted in-depth measurements of the breathability, moisture absorption, and strength of cotton materials, providing data support for material selection.

Material Composition

The main component of breathable cotton sports tape is cotton fibers, typically spun and heat-treated to form sheets or rolls. Based on test data from different batches, the length, diameter, and purity of the cotton fibers affect the material's physical properties. The table below summarizes some data from different batches of cotton fibers:

The data in the table shows that the cotton fiber length is between 27.8 and 29.0 mm, the diameter is approximately 15.8 to 16.2 μm, and the purity is all above 95%, indicating high raw material stability.

Air Permeability and Density

Air permeability is one of the important indicators in cotton fiber material research. Air permeability experiments can quantify the air permeability of materials. Different textile processes affect air permeability; for example, materials with higher density generally have higher air resistance. The following table lists air permeability data (unit: L/m²·s) for several different yarn densities:

As can be seen, air permeability decreases with increasing yarn density, which is related to the material porosity and fiber arrangement.

Fiber Performance under Humid Conditions

The physical properties of cotton fiber materials under humid conditions have also attracted much attention. Research data shows that at a relative humidity of 70% and a temperature of 25℃, the moisture content of cotton fiber is approximately 6–7%, while at a relative humidity of 90%, the moisture content can rise to about 10%. The changes in fiber moisture content under different humidity levels are shown in the table below:

It can be seen that cotton fiber has good moisture absorption capacity, and its moisture content adjusts with changes in ambient humidity.

Tensile Strength and Durability

The tensile properties of breathable cotton materials are also a key research indicator. The stress-strain relationship of the material at different stretch lengths can be used to evaluate its stability and durability. Experimental data show that the average tensile stress of conventional cotton fiber materials is approximately 1.2–1.8 MPa within the initial stretch range of 5% to 20%. The following table summarizes the relationship between stretch length and stress value:

These data indicate that cotton fiber exhibits a good linear relationship within a slight stretch range, making it suitable for material research in continuous use scenarios.

Thickness and Roll Specifications

Breathable cotton sports tape is typically supplied in roll form, and its thickness varies between batches. Generally, the thickness is between 0.3 and 0.5 mm, the roll width can be customized to 2–5 cm, and the roll length ranges from 5 to 15 meters. The relevant data for thickness and roll dimensions are as follows:

As can be seen from the table, the thickness and roll dimensions of different batches are within a reasonable range, providing data reference for subsequent material use.

Breathable cotton sports tape, as an application form of cotton fiber material, has stable raw materials, moderate breathability, good tensile properties, and exhibits controllable moisture content changes under different humidity environments. The data on thickness, roll dimensions, and yarn density provide important reference for researchers and materials engineers. Quantitative analysis of air permeability, moisture content, and tensile stress can provide a scientific basis for material selection and process optimization, and provide data support for research and application in related fields.