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Crock Meter – Hand Operated

Presto’s Crock Meter is used to determine the fastness of printed and dyed textiles to wet and dry rubbing. Complete with a pre-set rotary counter.

Crockmeter is a unique test instrument to determine the colorfastness of textile materials against rubbing under either dry or wet condition. It checks the colorfastness to crocking when the test specimen is subjected to continuous rubbing by an abrading finger which rubs against it under specified load.

The equipment is designed to stimulate the action of a finger. The instrument uses a standard pressure and rubbing motion to provide reproducible and reliable test results. The arms of the machine move in an oscillating motion over the test specimen with a specified load and diameter. The rubbing finger has a flat base which is covered with a piece of white crocking cloth which is fixed by an S.S. spring clip and is set to move in oscillating motion over the sample. As a result, the crocking cloth will absorb the color released by the specimen. The machine has a digital counter of 3 digits, which enables the user to set the desired number of rubs and displayed on the counter as well.

It is designed and produced according to both AATCC and ISO standards, so it can evaluate color fastness for textile fabrics, dyed textile or dyed leather. The Change in color of specimen and staining of the adjacent fabrics are assessed with standard gray scales.

**Gray scales available as optional



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    • Size of crocking cloth test specimen – 5 x 5 cm.
    • 16 mm finger diameter.
    • Load of “9 Newton weight – 1 No.” can be exerted on the finger.
    • The machine is equipped with 2 sample holders and 2 stainless steel spring clips.
    • The laboratory equipment is supplied with 1 packet crock squares and 1 packet blotting paper for continuing the test procedures.
    • Size of sample: 195*60 mm
    • Counter: 3- digit Reset type
    • range of counter: 999
    • Least Count of counter: 1
    • Length of travel of rubbing finger: 100 ± 3 mm
    • Material:
    • Mild Steel(Outer Body)
    • Stainless Steel(Inner Body)
    • Finish: Powder coated Havel Gray & Blue combination finish and bright chrome / zinc plating for corrosion resistant finish

    • The instrument has mechanical type re-settable Counter.
    • The machine is equipped with steel holder for rapid specimen mounting.
    • The machine is supplied with user manual and calibration certificate.
    • Hand operated oscillating arm with Teflon rollers for noise free movement
    • Highly accurate test results under uniform load and specified diameter.
    • Equipped with Teflon rollers to minimize friction
    • Uniform load by weights on finger for evenness in testing
    • Provision of Set number of counts through Preset Counter
    • Geared system for oscillating arm movement
    • Instant braking system
    • Standard crocking cloth as Abradant

     

    Standards

    • IS: 766-1988






Reviews of Crock Meter – Hand Operated

  1. Jeevan
    24 Dec, 2015

    Best machine for those who want to test the color fastness of their products effectively. Good rate of repeatability and very easy to use instrument.

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