Overview of Cool Feeling Tester
The Cool Feeling Tester checks how quickly textiles cool when they touch your skin. It’s perfect for testing functional fabrics like sportswear, underwear, bedding, and summer clothes. The tester measures Qmax values according to international standards such as JIS L 1927 and GB/T 35263. Simulating real skin contact, it provides goal, repeatable measurements of cool touch performance. This helps manufacturers choose the right fabric. It helps with product development and quality control for garments that feel cool and refreshing.
More reliable test results.
Rapidly heats the heat detection board to 35°C and responds with a Q-max value in seconds. So it minimizes the temperature loss of samples for accurate tests.
Precise control of temperature deviation
Suppose the ambient temperature in the laboratory deviates due to the location of the instrument or other reasons. In that case, the built-in temperature sensor can record that deviation and you can trace it. Besides, the instrument ensures that the deviation between the detection board and the sample is controlled.
More reliable test results
Samples tested by one third-party organization are re-tested by our CoolMax and the results match the third-party data.
Smart Cool Feeling Test
At SmarTexLab App, you can set up a program to start or stop the instrument remotely; and you can schedule a test or remotely reheat the detection board to make testing more efficient.
Application Examples of CoolMax Cool Feeling Tester
Tencel Fabric
Bamboo Fabric
Modal Fabric
Linen Fabric
Client Success Stories
“Cool Machine! I heard it recently and will experience it at the ITMA Asia 2024.”
“ChiuVention is a reliable textile testing machine brand and we are using some its machines, so I also have interest to purchase this new machine in 2025.”
OUR BROCHURE
The Specification of CoolMax Cool Feeling Tester
Heat detection plate temperature: 35 ± 0.5 ℃ (adjustable from 20 ℃ to 40 ℃)
Cold plate 1 (polyester foam board) dimensions: 210 mm × 210 mm
Cold plate 2 (copper plate) temperature: 25 ℃, precisely controllable (supports adjustment to below 10 ℃)
Temperature display resolution of the sample stage: 0.01 ℃
Cold plate 2 (copper plate) area: 180 mm × 180 mm
Test time: 1–600 s (adjustable)
Testing method: Automatic (no manual movement of the test plate required)
Test sample area: 200 mm × 200 mm
Heat detection plate response time: < 0.2 s
Power 220V 50 / 60 Hz. Other voltages require an external transformer
Weight 35 Kg
Dimension 540 mm × 468 mm × 345 mm (W*D*H)
The Test Standards of CoolMax Cool Feeling Tester
JIS L1927
FTTS-FA-019
GB/T 35263-2017
CNS 15687-2013
Frequently Asked Questions of the Fabric Coolness Tester
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Synthetic Cool-Feeling Fabrics
Coolmax® helps manage moisture and improve evaporation. It cools you down thanks to its hydrophilic properties.
Polyester often gets a special treatment to boost its moisture-wicking. This helps sweat evaporate fast and creates a cooling feel.
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Natural Fibers
Cotton is breathable and absorbs moisture well. This makes it comfortable and cool, especially when it’s lightweight.
Linen is breathable and wicks away moisture. It’s perfect for hot weather and keeps you cool.
Bamboo: This fabric wicks moisture and breathes well, keeping your skin cool.
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Specialty Fabrics
Jade-infused Fabrics: Adding jade powder to the fibers boosts thermal conductivity. This helps heat dissipate better, creating a cooler feel.
Graphene-infused Fabrics: Graphene helps lightweight fabrics cool by improving heat dissipation. It balances body heat with the environment.
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Performance Fabrics
Activewear Fabrics: Many sportswear materials wick moisture from the body. They also promote evaporation, which cools you down during exercise.
Cooling Technology Fabrics: These fabrics use phase change materials (PCMs) or other cooling tech. They are made to give a quick cooling feeling when they touch your skin.
These fabrics are often used for many purposes.
They include:
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Sportswear
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Summer clothes
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Home textiles, like sheets and pillowcases
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Outdoor gear
Testing how cool these materials feel helps manufacturers meet comfort needs in warm weather.
1. Start-up
Turn on the power and start the CooL Feeling Tester.
Preheat the instrument to a stable state according to the device instructions (usually wait 5-10 minutes to ensure that the probe temperature is constant).
2. Setting Test Parameters
Select the test mode (e.g. Qmax test) in the operation interface. Set the required parameters (e.g. ambient temperature, contact temperature, sampling time, etc.). Select the execution standard (e.g. JIS L 1927 or GB/T 35263).
3. Prepare the sample
Cut the fabric to the required size (e.g. 100mm × 100mm) without crease or contamination. If the standard requires pretreatment (e.g. temperature and humidity balance), the sample should be placed under the specified temperature and humidity conditions first.
4. Placement of samples
Place the sample flat on the test platform and make sure there are no bubbles or wrinkles. If the cool feeling tester is equipped with a platen, gently cover it.
5. Starting the Test
Click on the “Start Test” button, the instrument controls the probe contact with the sample and starts to record the heat flux change. The Cool Feeling Tester automatically collects the Qmax data, a process that usually takes only a few seconds.
6. Read and Save Results
When the cool feeling test is complete, the instrument displays the Qmax value (in W/cm2). Test data can be exported or saved (Excel, PDF, etc.).
7. Cleaning and shutdown
Remove the sample and clean the contact surface.
The intelligent cool feeling tester measures how cool fabrics feel (Qmax) when they touch the skin. Fabrics with lower Qmax values don’t measure “warm feeling” directly. But they often hold more heat since they transfer it slowly. To fully check warmth or insulation, use tools like a thermal resistance tester. A guarded hot plate is one option.
The most well-known international standards for testing fabric coolness are JIS L 1927 from Japan and GB/T 35263 from China. Both measure the Qmax value, which shows instant contact coolness. ASTM and ISO don’t have specific standards for contact cool sensation. They sometimes use related methods, like ASTM D1518 and ISO 11092, to assess thermal comfort. Leading textile brands may also implement internal cool-feeling test protocols.
| Qmax Value (W/cm²) | Cool Feeling Level | Subjective Sensation |
| ≥ 0.200 | Very Strong Cool Feeling | Obvious icy touch, strong refreshing sensation |
| 0.150 – 0.199 | Strong Cool Feeling | Noticeable coolness, comfortable for summer wear |
| 0.100 – 0.149 | Moderate Cool Feeling | Some cooling effect, cooler than ordinary cotton |
| 0.050 – 0.099 | Slight Cool Feeling | Slightly cool to the touch, not very noticeable |
| < 0.050 | No Cool Feeling | No cool sensation, may feel warm or stuffy |
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