Different Methods used to abrasion test

The ASTM D4157-07 is a test of the American Society of Testing and Materials. A Wyzenbeek machine is used for this test allowing samples of the test fabric to be pulled tight in a frame and held stationary. Individual test specimens cut from the warp and weft directions are then rubbed back and forth using an ACT approved #10 cotton duck fabric as the abradant. The end point is reached when two yarn breaks occur or when appreciable wear is reached or when 100,000 double rubs are reached. The samples should be checked every 5,000 double rubs,and when an end point is reached because of failure, the rater should back up to the previous 5,000 double rub checkpoint as the test result of abrasion resistance. The test results are therefore to be reported in 5,000 double rub increments.

Experience indicates that 100% olefin fabrics are best-tested using wire screen as the abradant. The Wyzenbeek method tests flat abrasion resistance of a textile. This test method does not evaluate edge abrasion or any of the other diverse factors that would determine the overall durability of upholstery as used in variety of seating designs.

The ASTM D4966-98 is a test method of the American Society of Testing and Materials. Fabric samples are mounted flat and rubbed in an enlarging elliptical shape using a piece of worsted wool cloth as the abradant. The end point is reached when two yarn breaks occur or when there is a change in shade or appearance that is sufficient to cause a customer to complain.

Shade change is assessed as the AATCC gray scale rating of 3 or lower. The samples should be checked every 5,000 cycles, and when an end point is reached because of failure, the rater should back up to the previous 5,000 cycles checkpoint as the test result of abrasion resistance. The test results are therefore to be reported in 5,000 cycles rub increments.

The Martindale method tests flat abrasion resistance of a textile. This test method does not evaluate edge abrasion or any of the other diverse factors that would determine the overall durability of upholstery as used in variety of seating designs.