Touch the difference
TOYOBO cooling sensation
Tsunooga®
for cool touch fabric
q-max value : 0.523W/cm2
- ※The above figures are measured values by QTEC (JAPAN), not the values for guaranteeing.
- ※ΔT=20℃ Fabric : Polyethylene (Tsunooga® 220dtex) 60% / Nylon 40%
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- ※The above figures are measured values by QTEC (JAPAN), not the values for guaranteeing.
- ※ΔT=20℃ Fabric : Polyethylene (Tsunooga® 220dtex) 60% / Nylon 40%
You feel a difference immediately
when you touch TOYOBO cooling sensation fabric
Thermography compared with other fabric
※Place hand on the fabric 30 sec. and release hand 15 sec., then take a thermography
What is Tsunooga® ?
Tsunooga® is high molecular weight
polyethylene yarn produced by TOYOBO in Japan.
Fabric made with Tsunooga® provide a great cooling
sensation.
※q-max is the value which shows cooling performance.
Cooler fabric has higher q-max value.
q-max coolness index
- Extremely cool!
( q-max value : 0.4 ≥ ) 
- Pretty Cool
( q-max value : 0.3 ≥ ) 
- A little cool
( q-max value : 0.2 ≥ )
※Coolness index is our original index
Feature of Tsunooga® fabric
Gives you comfortable sleeping all night long!
For bed pad, pillow case and any kinds of bedding products.
Moment you touch, feel cool.
There is a big difference between Tsunooga® fabric and other materials in terms of cooling sensation under the same conditions.
Clearly different from other cooling products!!
Comparison data of cooling pillow pad
- Tsunooga® Pillow pad
- Polyethylene 54% / Polyester 46%
※Using Tsunooga 440dtex
- Pillow pad A
- Nylon 75% / Rayon 25%
- Pillow pad B
- Polyethylene 70% / Polyester 30%
※Tested with surface fabric of each pillow pad ΔT=20℃
※Tested by BOKEN QUALITY EVALUATION INSTITUTE (JAPAN)
Cooling recovers quickly
Tsunooga® fabric has very high thermal diffusivity,
therefore, cooling recovers quickly every time you turn over in bed.
Tsunooga® is a multiple filament yarn which is a bundle of very fine filaments.
By reducing the diameter of the filament to only 12 μm,(almost 1/5 of human hair) the surface area of the yarn is increased,
and the thermal diffusivity and heat dissipation are also increased.
As a result, cooling recovers very quicky.
Cooling is lasting after washing
Tsunooga® fabric is machine washable at home.
Cooling property comes from fiber characteristics,
therefore, washing durability is clearly different from post-processed fabric.
- -High thermal diffusivity fiber-
- Yarn itself has cooling characteristic,
Almost no difference after washes.
- -Cooling material will drop by washing-
- Post-processed cooling fabric (ex. Xylitol)
will reduce its function after several washes.
- ※If fabric get a fluff after repeated washes, it may cause of cooling degradation.
- ※Tsunooga® is heat sensitive material, so we do not recommend you to use tumble dryer or iron.
Application
-
Pillow cover
-
Bed pad, Topper
-
Shoes
-
Inner wear
About Tsunooga®
Tsunooga® is high molecular weight polyethylene yarn produced by TOYOBO.
Fabric made with Tsunooga® provide a great cooling sensation.
Tsunooga® is produced in Tsuruga factory in Japan,
and we obtained below certification.
- ISO 9001
- The international standard for a quality management system
- Standard 100 by OEKO-TEX®
- One of the world's best-known certification for textiles tested for harmful substances.
FAQ
- What is q-max value?
- 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.
Customer's Voice
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Shoes MakerR&D
I have never seen such a cool touch fabric. Other R&D members are also surprised.
-
Bedding fabricQC
Product's safety is required. Cause it is yarn produced in Japan, we use it without any worry.
-
Bedding goodsPlanning dep.
In case of functional fabric such as anti-odor or anti-bacteria, it is difficult to make customers understand how it works. Tsunooga® fabric is easy to make customer understand the function only make them touch the fabric.
※These are the comments from customer who actually using our products.