Crockmeter For Testing Lab Description and Specifications for Lab Tenders
Crockmeter For Testing Lab Workshop.
Crockmeter - For Testing Lab
The determination of colourfastness of vinyl coated fabrics against
rubbing in both dry and wet conditions is carried out by means of a
crockmeter. In this test a rectangular test specimen is clamped over a
glass plate, which is then given a reciprocating motion in a horizontal
plane, while a white cotton abradant fabric mounted over an abrading peg
of the specified shape rubs against it under a specified load. The
degree of colour transferred from the test specimen to the abradant
fabric determines its colourfastness.
This equipment can
also be used for the determination of adhesion of prints on vinyl
coated fabrics and unsupported flexible PVC sheetings. The rubbing off
of the printed pattern gives a measure of the print adhesion of the
material.
The Crockmeter for
determination of colourfastness and print adhesion of vinyl coated
fabrics and unsupported flexible PVC sheetings consists of a horizontal
reciprocating platform which can be moved in a horizontal plane and a
pivoted loading arm for holding the abradant fabric against the test
specimen under the specified load.
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