Sweating Guarded Hotplate Operation

Heating and damp comfort are human’s higher requirements on fabrics except their basic use of covering, keeping warm and cold-proof, thus these two features are more important factors to measure fabrics comfort. Heating resistance stands for fabric heating transforming features thus the bigger heating resistance is, the more cold-proof. While in summer, we tend to choose clothes with smaller damp resistance which can disperse moisture in our body and make people feel dry and comfortable.

Here we will introduce you the sweating guarded hotplate operating method.

1. Before starting, check the water level in constant temperature and humidity tank if there is enough water, since it won’t work even started without enough water.

Fill water in this way: open the front door, unscrew the left stainless steel cover and take the funnel to add water for adjusting moisture; stop adding at the water lever line.

2. After starting the switch, the setting panel displays for setting the temperature and moisture in climatic chamber. Heating resistance requires the temperature should be 20℃ and the moisture be 65%; while damp resistance requires the temperature be 35℃ and moisture be 40%.

3. Sweating Guarded Hotplate Heating Resistance Test

(1) The test sequence is: preheating--setting heat resistance specifications--heat resistance empty panel test--heat resistance test

(2) Preheating:  start the switch and preheat for 45 minutes; add a block of medium thickness fabric on testing board and take it out when the board is 35 ℃. Watch the heating board and floor board temperature reaching 35.2℃, We finish preheating and put the samples on test platform.

(3) Heating resistance specifications set: refer to the standards.

(4) Heat resistance empty panel test: test heat resistance when there are no samples. There is no need to do the empty panel test since it has quite small mistakes and we suggest do it every 3-6 month.

(5) Heat resistance test: put the sample on test board surface and adjust the lift button in the front of test stand; Cover the metal as blanket in four sides; When metal blanket is horizontal, put down organic glass cover and close tester door. Press start button and the tester runs; Press stop button after it runs stably and tester remain displays heat resistance results.

(6) Change samples and repeat the above process. Use the average data for evaluating and keep them 3 valid digits. 

4. Sweating Guarded Hotplate Damp Resistance Test

(1) Test sequences: Preheating—damp resistance specifications set—supply water and put test film—damp resistance empty plate test—damp resistance test

(2) Preheating: start the switch and preheat for 60 minutes; add a block of medium thickness fabric on testing board and take it out when the board is 35 ℃. Watch the heating board and floor board temperature reaching 35.2℃, we finish preheating and put the samples on test platform.

(3) Supplying water and putting test film belong to damp resistance test. Press the damp resistance button and loosen waterproof connector, water can flow to test tank from inside of the water supplement chamber. Watch water indicator on the right of test stand and the surface of perforated plate; tighten waterproof connector when the water flows out.

(4) Take out 2 films and use the flexible side; pave them to the perforated plate and add distilled water properly. Use cotton blocks to pave films and remove bubbles between films and perforated plate.

For more information on sweating guarded hotplate or textile testing instruments, you can visit our website www.qinsun-lab.com .