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There are different methods for checking

ABRASION AND PILLINGon fabrics:

- Cesconi- Atlas Acelleration (AATCC)- Stoll- Random Tumble (ASTM)- ICI Box Pilling tester, code 279D- Martindale

(ISO12673, IWTO 40-88, ASTM D-4966-4970, SN

198525/198529)

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MARTINDALE TESTS

ABRASION TEST (ASTM 4966/4970, ISO12945-1):BACKING FOAM code 314.10 ( 3 8 mm)SPECIMEN ( 3 8 mm)

ABRASIVE FABRIC code 314.12 ( 1 4 0 mm)BACKING FELT code 314.8 ( 1 4 0 mm)

The circular specimen of fabric is rubbed against the standard abrading fabric,

under a known pressure, following a predetermined path, known as Lissajous

figure (for checking this figure, offer the pointed steel bar code 2560.22). This

path changes from a circle to gradually narrowing ellipses, until it becomes a

straight line, from which widening ellipses develop, in a diagonally opposite

direction, before the pattern is repeated; thank to this movement all the surface

fibres are flexed in every direction.

The end point is reached on a woven fabric when two threads have completely

broken down or on a knitted fabric when a hole appears, i.e. one thread is

broken.The sample has to be checked at suitable intervals, using a low power stereo

microscope (offer Diamond Microscope code 192A).

End point can also occur because of a change in shade or appearance that is

sufficient to cause a customer to complain (offer Grey scale ISO 105-A02,

code 267C).

However, the most objective method is to remove the specimens at intervals

and to condition and weight them, so as to determine the rate of weight loss.

IWS PILLING TEST (IWS TM 196):

BACKING FOAM code 314.10 ( 3 8 mm)SPECIMEN ( 3 8 mm / 1 4 0 mm)BACKING FELT code 314.8 ( 1 4 0 mm)

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ABRASION

The test is finished when the first two yarns

break (10.000 30.000 rpm)

(offer Stereoscopic Microscope Code 192A)

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PILLING

Standard Cotton Fabric Worsted

Fabric

Photographs (no standards) (Optional

Swiss

Pilling)

SM 54 for Knitted(wool)

SM 50 for Woven

(wool)

ENPA