When skin touches fabric, heat is moving from skin to fabric. This is why you feel cool sense.
The numerical value of the momentary heat transfer is q-max (W/cm2).
Bigger values of q-max are related to feelings of coolness.
In general, fabric which has q-max 0.2 W/cm2 or more is considered cool sense fabric.
Are there any limitations or cautions for dyeing/finishing?
Tsunooga® is polyethylene yarn which is not dyeable. It is possible to dye interknitted yarn.
Because Tsunooga® is heat sensitive material, please be aware processing or treatment with high temperature,
such as drying, heatsetting or ironing.
Will the cooling effect continue forever?
Heat is always transferred from the object with higher temperature to the object with lower temperature.
After skin touches Tsunooga® fabric, you will start feeling cool while heat is moving from skin to the fabric.
Once the fabric reaches same temperature to skin, heat stops moving then you will not feel cool.
Tsunooga® fabric is always trying to release heat to the area that are not in contact with the skin,
therefore, the fabric temperature does not rise easily.
Also, once the Tsunooga® fabric separates from skin, the fabric will be diffusing and radiating heat, you will feel coolness repeatedly.
Does higher q-max value fabric really cool?
q-max is an indicator of instantaneous heat transfer.
In case of fabric with small heat capacity, even if q-max value is high, fabric temperature rise easily and stop moving heat sooner.
As a result, you do not feel enough coolness.
Tsunooga® is the yarn which has both large heat capacity, and high thermal conductivity,
Therefore, Tsunooga® fabric diffusing heat quickly to make fabric temperature rising slowly.
That is why Tsunooga® fabric make you feel cooler than other materials.