Exposure Rack,Exposure Rack Manufacturer,Exposure Rack Suppliers India
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Textile Testing Equipments » Color Fastness Instruments » Exposure Rack

Exposure Rack

All textiles materials experience exchanger in colour when exposed to daylight for sufficiently long period because of the action of daylight on pigments used in them. The severity of exposure in both time and intensity of daylight determines the extent of change in colour. The colour fastness is denoted by the number of the light fastness standard fabric (Blue Standards) that has changed colour to the same extent as the test specimen. It is expressed as the numerical rating for light fastness.
The ‘INNOLAB’ Exposure Rack is designed to test colour fastness of textiles materials to daylight. The test is carried out by exposing a set of light fastness standard fabrics 1 to 8 and a set of test specimens to day light till the desired fading of the colour is obtained. The change in colour of exposed area of the test specimens and the light fastness standard fabrics is then examined and the relative degree of colour fastness of test specimens determined.
The equipment consists of a frame made of wood with a glass framed wooden lid hinged over its top. The frame is fitted on a steel stand so that it can be kept in open with the frame located at a convenient working height and titled at 450 to the horizontal.
The test specimens and light fastness standard fabrics are mounted on special mounting card designed to give specified coverings to them. Ten such mounting cards designed to conduct the test in accordance with Method 1 of Indian standard specification is provided with apparatus. Extra card are available as optional accessories.
The light fastness standard fabrics and Grey Scale for assessing change in colour are not supplied with the equipment but are available as optional accessories.
TECHNICAL DETAILS :
Size of the Frame 600 mm x 450 mm
Distance of glass from the samples 50 mm (Minimum)
Angle of inclination of frame from horizontal 45 degree

RELATED STANDARDS :
IS 686 - 1985 Method of Determination of Colour Fastness of Textile Materials to Daylight.
SINCE OUR POLICY IS OF CONTINIOUS DEVELOPMENT AND IMPROVEMENT, ALL TECHNICAL DATA / SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.



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