ICI Pilling Tester – Latest Model

Pilling testing replicates the process by which fibres migrate to the surface of a fabric during repeated mechanical agitation, tangle together, and form small fibre balls (pills). The test specimen is mounted inside a lined box and tumbled at a controlled speed for a set number of cycles; the resulting surface appearance is then rated on a 1–5 scale against photographic standards, where 5 is no pilling and 1 is very heavy pilling. Snagging testing assesses whether the fabric's yarns or loops are vulnerable to being caught and pulled out by rough or abrasive surfaces during wear. The ICI instrument uses separate snagging boxes and drums (different lining material and box geometry) on the same universal drive system to replicate this distinct failure mode.

The ICI Pilling Tester operates at a rotation speed of 60 ± 2 rpm, which is the speed specified by ISO 12945-1, BS 5811, and the other major pilling and snagging test standards to which the instrument complies. This speed is maintained by a single chip controller that regulates the drive motor to keep the drum rotation consistent throughout the test. The ± 2 rpm tolerance is within the limits specified by the standards. Consistent rotation speed is important because the energy imparted to the specimen per cycle directly influences the rate and extent of pilling — deviations from the specified speed would affect the comparability of results between laboratories and between test runs on the same instrument.

The ICI\2 is a 2-station model that tests two specimens simultaneously, making it appropriate for laboratories with moderate testing volumes or limited bench space. The ICI\4 is a 4-station model that tests four specimens simultaneously — doubling throughput compared to the ICI\2 and making it the better choice for commercial testing laboratories, large fabric mills, or apparel buyers that need to test multiple fabric lots or multiple replicates per lot in a single test run. Both models have the same drive speed, counter, and standards compliance. The published weight specification of 55 kg refers to the 2-station model; the 4-station model is heavier. Both share the same 800 × 500 × 600 mm footprint for the drive unit.

The ICI Pilling Tester complies with the following standards: IS 10971 (Indian standard for pilling resistance of knitted fabrics); ISO 12945-1 (pilling by the ICI pilling box method); BS 5811 (pilling resistance of woven fabrics); BS 8479 (snagging resistance); JIS 1058 and JIS L1076 (Japanese pilling standards); NEXT 19 (retailer specification); IWSTM152 (International Wool Secretariat test method for pilling); and M&S buyer standards P18, P19, and P21A (Marks & Spencer pilling and snagging specifications for apparel). This broad standards coverage supports testing for domestic and export markets including India, the UK, Europe, and Japan, as well as compliance with major retailer specification requirements.

The Pilliscope Assessment Viewer is an optional accessory used for visual pilling grade assessment after testing. It provides a controlled, standardised viewing environment — typically with a defined light source, viewing angle, and background — to minimise subjectivity in the pilling grade assessment process. Pilling grading is inherently a visual judgement comparing the tested specimen against photographic reference standards on a 1–5 scale; inconsistent lighting or viewing conditions introduce inter-operator variability. The Pilliscope is particularly useful for laboratories that need to achieve consistent grades between operators or between laboratory locations, and is recommended for commercial testing environments where results are reported to customers or used in buyer approval processes.

The Mounting Zig (jig) is an optional accessory that assists with the precise and consistent mounting of fabric specimens onto the test tubes or holders used in the ICI pilling and snagging test methods. Correct specimen mounting — with uniform tension, accurate positioning, and no creases or distortions — is important for reproducible results because specimen presentation affects how the fabric interacts with the lining material inside the pilling box during the test. The Mounting Zig ensures that each operator applies the specimen in the same manner, reducing the operator-to-operator variability that can otherwise affect pilling grade outcomes — particularly relevant in multi-operator or multi-shift laboratory environments.

The ICI Pilling Tester operates on 220V or 110V at 50/60 Hz with a current draw of 4A, making it compatible with both Indian standard mains supply and international installations. The 2-station model weighs 55 kg and has bench-top dimensions of 800 × 500 × 600 mm (L × W × H), suitable for a standard laboratory bench. No compressed air, special utilities, or dedicated floor installation is required. The instrument should be placed on a stable, level surface — excessive vibration can affect the uniformity of drum rotation and introduce variability into the test. The bench surface should be capable of supporting the instrument weight with an adequate safety margin.