To determine the tendency to form pills, test specimens taken from the fabric sample are rubbed against each other under controlled conditions and the appearance of the test specimen after rubbing for the specified period is compared against standard rating photographs for grading the fabric.
The “HIROSHIMA” PILLING TESTER consists of two wooden cubic boxes with inside surfaces lined with cork and outer surfaces laminated. These boxes are rotated about central axis at a specified speed with the help of a motor and a gear box. A reset stroke counter stops the motor automatically after the desired number of revolutions.
The test specimens are firmly held around rubber tubes. Four such tubes are placed in each box and then rotated for desired numbers of revolutions after which they are assessed visually against standard rating photographs and graded.
The apparatus is finished in Bayer’s Blue Duco Paint and bright chrome/zinc plating. The boxes are covered with a layer of blue laminated sheet.
Four rubber tubes, one insertion tool, and a template for marking on the specimen are supplied as standard accessories.