Features of Scorch Tester TF415D

Accurate testing: The upper and lower heating blocks are made of aluminum alloy treated by grinding and sandblasting oxidation to ensure good coupling between the heating block and the sample, and the adiabatic body around the heating block is made of PTFE die-casting, which has good adiabatic property and ensures the uniformity of temperature.

Three stations, high efficiency: 3 different kinds of sample testing can be done at one time, and the temperature of the upper and lower heating plates of each station is accurately controlled by independent controllers, and individual temperature and time settings can be made.

Easy to use, long life: industrial grade color touch screen display and control, friendly human-machine interface, solid-state relay control of the heater, no noise on and off, long life.

Specifications of Scorch Tester TF415D

• Large LCD display, convenient setting, and operation.
• 3 pairs of heating plates, the heating temperature of each upper and lower plate can be set individually.
• Timer: 0 ~ 240 s, automatically stops heating and alarms
• Temp. Range: R.T. ~ 230°C
• Temp. Accuracy: +/- 2°C
• Pressure: 4 kPa +/- 1 kPa
• 3 stations with heating plate dimensions 120 mm x 50 mm

Accessories

Weight

Power

Dimensions

Standards

Test Procedure of Sublimation Color Fastness Test

Before the experiment, the heat-treated or dried specimen material must be humidified (at a relative humidity of 65% ± 5% and a temperature of 21°C ± 2°C). The bottom plate of the heating device is covered by an asbestos sheet, wool facecloth, and dry undyed cotton cloth in order.

①Dry pressing: Place the dry specimen on the cotton cloth covered with wool flannel liner, put down the upper plate of the heating device, and heat the specimen for 15s under the specified hot pressing temperature. please note that some standards are the 30s, and set the time in combination with the standard.

②Tide pressure: Place the dry specimen on the cotton cloth covered with wool facecloth liner, soak a 12cm×4cm undyed cotton liner in distilled water, squeeze or shake the water to make it contain its own weight of water, and place the wet cotton liner on the dry specimen, put down the upper plate of the heating device, and heat the specimen for 15s or 30s under the specified heat pressure temperature.

③Wet pressing: Soak the dyed specimen and a 12cm×4cm piece of undyed cotton cloth in distilled water, then squeeze them so that their water content is equal to their own weight. Place the wet specimen on the cotton lining covered with wool facecloth liner and place the undyed wet cotton lining on the specimen, put down the upper plate of the heating device, and heat the specimen for 15s or 30s under the specified hot pressing temperature.

Grading

[Color change] Immediately evaluate the color change of the specimen with the corresponding color change gray card, and then the specimen is humidified in the standard atmosphere for 4h before evaluation.

[Staining] Immediately assess the staining of the cotton lining fabric with the staining gray card. Evaluate the cotton lining fabric staining the heavier side.