Principle of fabric thickness Measurement

 Principle of fabrics thickness measurement

Various materials have a specific method for thickness measurement. For the measurement of various meral and non-metal elements, thickness is measured by slide calipers or micrometer screw gauge.  But in textiles, this type of instrument can not help us to measure the thickness of the fabric because fabrics can be shrinks due to pressure applied to the fabric. 

Practically we can measure fabrics like Compressable materials thickness by using a pressure foot and anvil. Here in this process we place a known arbitrary pressure on the fabrics and get the thickness measurement.  

Fabrics thickness is a parameter related to fabric handle,  crease, and thermal characteristics.  

The factors depend on thickness measurement: 

Basically, the fabric's topside to downside distance is called its thickness. The factors considered for fabrics thickness measurement are given below: 

1. Shape and size of the pressure: Generally, we use a circle type pressure foot which has a diameter of 3/8 inch in some cases it can be different. The pressure foot and fabrics thickness ratio will not be less than 5:1. 

2. Shape and size of the Anvil: When we use a rounded Anvil then that diameter must be 2 inches more than the pressure foot. If the sample fabric is more then it needs to use a paper board as support. 

3. Applied pressure: How much pressure we will apply that will be fixed from the previous. 

4. Velocity of the pressure foot: Pressure foot downing motion must be under consideration which can be 0.002 inches per second. 

5. Time: There is a dial with this measuring machine.  Here is a dial and it has an indicator. The testing time ends when the indicator stops. 

6. Identification of thickness: Like a dial of a watch attached with the machine that adjusted hardly.  This has a range of 0.00005 inches to 0.005 inches.