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47 10

Rub Proofness Tester

 
The rub proofness tester is used for determination of fastness of colour of light leathers to wet and dry rubbing and for measuring the transfer of colour to the material with which it is rubbed.
The test specimen is rubbed with a rotating circular felt pad pressing against it under a specified force, and the number of revolutions of the pad required to produce certain specified effects is determined.
 
This equipment can also be used for assessing the degree of damage to a material during mild wet abrasion imitating the scuffing action of a damp hose on footwear insole during wear.
 
A rotating wet circular felt pad, covered with a worsted fabric under a specified contact force rubs against the test specimen. Overall damage to the test specimen is assessed by measuring its mass loss after a specified numbers of rubs.

Detailed Description

 

IS 6191 ? 1971

: Methods of Micro-Biological Colour Fastness and Microscopical Tests for Leather LF 9 : Determination of Fastness to Rubbing (Wet and Dry) of Light Leathers

SATRA PM 14

: Resistance to Scuffing by Mild Circular Abrasion

BS 3662 ? 1962

: Methods for the Determination of Colorfastness of Leathers

Technical Details

Rotating Speed

: 150 rpm

Load on felt pad

: 0.73 kg or 2.5 kg

Motor

: AC synchronous motor ? 20 kg.cm

Counter

: Four digit electronic counter