- PURPOSE AND SCOPE:
To determine the resistance to the wearing away of any part of
material when rubbed against another material. The adequate abrasion resistance of woven
or knitted textile materials is essential for consumer acceptance and satisfaction.
Fraying cuffs and collars, worn seats and elbows, threadbare sheets, etc., are the result
of abrasive action.
- PRINCIPLE:
A specimen is abraded by rubbing either
uni-directionally or
multi-directionally against an abradant having specified surface characteristics. The
specimen is held in a fixed position and supported by an inflated rubber diaphragm, which
is held under a constant pressure. Resistance to abrasion is evaluated by fabric failure
and/or visual rating.
- REFERENCE:
ASTM D 3886-99, Standard Test Method for Abrasion Resistance of Textile
Fabrics (Inflated Diaphragm Method).
- APPARATUS:
4.1 CSI Stoll - Universal Wear Tester, Model CS-22C
4.2 "O" emery polishing paper
- PROCEDURE:
5.1 Cut at least 2 circular specimens approximately 112 mm (4-3/8 in.) in
diameter.
5.2 Condition the specimens for a minimum of 2 hours at 21° +/- 1C (70° +- 2F)
temperature and 65% +/- 2% relative humidity.
5.3 Place the specimen (face up) over the rubber diaphragm.
5.4 Place an unused strip of "O" emery abrasive paper on the abradant plate.
5.5 Set the air pressure on the diaphragm to 28 kPa (4
psi) and place a 454 g (1 lb.)
load on the head.
5.6 Engage the rotation mechanism of the specimen clamp.
5.7 Gently bring the abradant head down until it contacts the specimen.
5.8 Depress "start" button.
5.9 "O" emery polishing paper be changed at every 100 to 300 cycles.
5.10 Check the specimen frequently (depending upon the type of fabric), and evaluate
visually under magnifier light.
- EVALUATION:
Determine the end point by one of the following methods as specified or
agreed upon:
1. The completion of a specified number of cycles on the testing machine and any change
in the appearance.
2. First sign of wear or a yarn breaking, and counting the number of cycles up to this
point.
3. Specimen breaking or being completely rubbed away and counting the number of cycles
up to this point.
- REPORT:
Report the abrasion resistance in terms of average number of cycles to reach
an end point.
