Rotawash Washing Fastness Tester is used for determining colour fastness of textile materials to washings. This is attained by mechanically agitating a specimen of textile in contact with pieces of specified adjacent fabrics in a soap – soda solution. Before being rinsing and dried. The change in colour of specimen and stains of the adjacent fabrics are assessed with standard Grey Scale.
WASHING FASTNESS TESTER’ consists of a thermostatically controlled, electrically heated water bath made of Stainless Steel. The bath is heated by means of immersion heaters and its temperature controlled by a capillary type thermostat. The temperature of water inside the bath is displayed on a digital temperature indicator. The bath has a double walled hinged lid made of stainless steel sheets.
The jars in which the test solution and the test specimens are kept during the test are made from stainless steel and are provided with rubber scales for water tight closing. They are held in a cast stainless steel rotor assembly mounted on a stainless steel shaft at the center of the bath and rotating about a horizontal axis with the help of a geared Motor. A clockwork timer is provided to stop the motor after a pre-determined time. The apparatus is fabricated on a sturdy angle iron frame and is completely enclosed on all four sides with mild steel sheet duly enameled in metallic green paint. The top of the apparatus is covered with stainless steel sheet.
One hundred stainless steel balls of 6 mm diameter are supplied with the apparatus as standard accessory for providing beating action during the washing operation. Extra stainless steel balls and standard Grey Scales are available as optional accessory.
TECHNICAL DATA :
Number of Jars
Volume of each Jar
550 cc (Approx)
Distance of base jars from the axis of rotation
Speed of rotation
40 to 45 rpm.
Temperature of Water Bath
Ambient of 980 C
¼ HP 230 V AC.
RELATED STANDARDS :
IS 687 – 1979, 764 - 1979, 765 – 1979, 3417 – 179, 3417 – 179, Method of determination of Colour fastness of textile materials to washing : Test1, Test2, Test 3, Test 4 and Test 5 respectively.
Skyline Instrument (HK) Co.,Ltd is a manufacturer of laboratory and sample dyeing testing equipment as well as quality control testing instruments. We have provided value added support services like lab layout, calibration testing procedures / standards, recording techniques and operations of equipment, etc. With a network of representatives providing sales and technical support world-wideSkyline Instruments has achieved good repute in the fields of textile testing equipments, toy testing equipments, furniture testing and other measurement test equipments.Skyline has been the worlds No 1 testing equipment supplier. As a global leader in testing equipments skyline’s mission is “ To provide innovative, clean and effective testing solutions for better tomorrow”.