Crockmeter (Manual & Motorised)

We are providing a wide range of Crockmeters, which is available in both motorized and manual models as per the clients’ requirements. In order to determine the color fastness of dyed or printed textiles or leather, this test is used for the determination of color fastness against rubbing, either under dry or under wet conditions.

 

Working Procedure:

The crockmeter consists of a rigid flat metallic platform on which the test specimen can be held firmly and a abrading finger which rubs against it under a specified load

The platform is fixed over the base of the equipment and lies in a horizontal plane.

The test specimen is held firmly over an abrasive paper which is pasted on the upper face of the platform, with the help of two pins holding it at both ends

The abrading finger has a flat circular rubbing face which is covered with 4 piece of white abradant fabric during the test.

The abradant fabrics picks up color lost by the test specimen during rubbing

It is held over the finger with the help of a tapered ring

Motion to the finger is given through a reciprocating arm with runs an two ball bearings to minimize friction and to apply a uniform load on the finger

The arm is moved by a manually operated crank and connecting linThe equipment is finished in dark metallic paint and bright chrome plating to give it a corrosion resistant finis

Washing Fastness Tester

We are offering a wide range of Washing Fastness Teste, which is used widely for determining color fastness of textile materials to washings. Our experts mechanically agitate a specimen of textile in contact with pieces of specified adjacent fabrics in soap – soda solution. After this, the change in color of specimen and stains of the adjacent fabrics are assessed with standard grey scale.

Working procedure:

This 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 sheetsThe 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 aluminium 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 sheetOne 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 Eight

Volume of each Jar 550 cc (Approx)

Distance of base jars from the axis of rotation 50 mm

Speed of rotation 40 to 45 rpm.

Temperature of Water Bath Ambient of 980 C

Motor ¼ HP 230 V AC.