ASTM D4772 Towel Textile Absorbency Testing Machine Fluffy Fabrics
Water Absorption Performance Analyzer
Introduction
This device is used to test the ability of fluffy fabric to quickly
absorb and retain moisture from human skin, dishes and the surface
of furniture. A certain amount of water is poured onto the fabric
through a funnel. The fabric is fixed in a fixture. The absorbed
water volume is calculated by subtracting the accumulated water
volume in the lower tray from the original measured water volume.
Compliant with the standards
GB/T 22799-2009 "Test Methods for Absorbency of Towel Products"
ASTM/D4772 Standard Test Method for Water Absorption of Towel
Fabrics (Flow Test Method)
Main application
The water absorption tester is suitable for testing the water
absorption of products such as towels, face towels, handkerchiefs,
bath towels, and bedspreads. It simulates the actual situation
where towels absorb moisture from surfaces such as skin, dishes,
and furniture to detect the water absorption performance of these
products.
Operation steps
1. Connect all the connecting wires between the main unit and the
constant temperature water tank. Add sufficient amount of grade 3
water to the water tank. Turn on the power of the main unit. The
constant temperature water tank will start working.
2. Method A: Add 800 mL of grade 3 water to the stainless steel
square box for the A method test. Place it on the slide track of
the large water tank. The water level in the large water tank
should not be higher than the upper edge of the box. When the
temperature gauge shows the temperature to be constant at the set
value, start the experiment. Place the towel sample flat on the
net, slowly place it on the water surface, and simultaneously press
the "timer" button to start timing. When the sample is completely
soaked, press the "timer" button again to stop the timing and
record the required time. Press the "zero reset" button to clear
the timer. Calculate the average value of the 6 test samples.
3. Method B: Pour 50 mL (21 ± 1) °C grade 3 water into the funnel.
Open the valve to pre-wet the pipeline. Then dry the countertop,
tray, and collar.
4. Weigh the mass m of the tray before the test.
5. Prepare the samples according to the standard. Use the collar to
level the sample on the steel ring, tighten the butterfly nut, and
place it on the two fixed columns on the base panel.
6. Pour 50 mL of grade 3 water into the funnel. Switch the
electromagnetic valve switch to the "start" position to open the
valve. Start timing when the water flow is complete (25 ± 5)
seconds later. Remove the collecting tray and weigh the mass m1.
Stop the timer and press the "zero reset" button to clear the
timer.
Technical Specification
Glass funnel | 250ml |
Flow cylinder | 100ml |
Sample angle | 60 degrees from the horizontal |
Sample holder diameter | Φ155mm |
Water collection tray size | 250×190×30mm (L×W×H) |
Shape size of the sample holder platform | 180*140*200mm |
Instrument weight | 12KG |
Distance between the water outlet end of the pipe and the sample
surface | 2mm - 10mm |
Distance between the pipe and the inner side of the outer ring of
the clamp | 28mm - 32mm |
