how do you test for abrasion on fabric headliner？

Testing for abrasion on a fabric headliner can be done using the Wyzenbeek or Martindale abrasion test methods. Here's a general overview of these methods:

1. Wyzenbeek Test:

The Wyzenbeek test is commonly used to evaluate the abrasion resistance of fabric materials. It involves rubbing a piece of abradant (such as cotton duck) in a straight back-and-forth motion against the fabric headliner sample. The test is performed using a Wyzenbeek machine, which applies a specified force and a predetermined number of rub cycles.

The fabric headliner sample is evaluated based on the number of rub cycles it can withstand before showing signs of visible wear or damage. A higher number of rub cycles indicates better abrasion resistance.

2. Martindale Test:

The Martindale abrasion test, as mentioned before, is another commonly used method for testing fabric abrasion resistance. It involves rubbing a piece of abradant (usually a wool or wire mesh) in a circular motion against the fabric headliner sample. The test is performed using a Martindale abrasion tester.

Similar to the Wyzenbeek test, the fabric headliner sample is evaluated based on the number of rub cycles it can withstand before showing signs of wear or damage.

Both the Wyzenbeek and Martindale tests provide a measure of the fabric headliner's ability to withstand abrasion. The specific test method to choose depends on factors such as industry standards, specific requirements, and available equipment.

It's important to note that testing should be conducted in accordance with relevant standards, and the results should be interpreted in the context of the specific application and performance requirements for the fabric headliner.