Wednesday, May 16, 2012
There are two test methods for rubbing fastness.
1.ISO-105-X12
2.AATCC-08
In ISO-105-X12 the wet pickup of the rubbing cloth is 100% .While in AATCC-08 the wet Pickup of the rubbing cloth is 65%.We check rubbing by Dry and Wet methods. In wet rubbing we wet the rubbing cloth according to test method and give rating by comparing the Staining with the gray scale.
Similarly for dry rubbing we check the rubbing with dry rubbing cloth and compare the staining With gray scale for ratings.Color Fastness to rubbing is a main test which is always required for every colored fabric either it is Printed or dyed.
If the color fastness to rubbing is good then its other properties like Washing fastness and durability etc improves automatically because the rubbing is a method to check the fixation of the color on the fabric. So if the fixation is good its washing properties will be good.
Rubbing Fastness depends on:
- Nature of the Color
- Depth of the Shade
Construction of the FabricNature of the color Each color either it is pigment ,Reactive ,Disperse or direct has its own fastness properties to rubbing. There are some colors like black, Red ,Burgundy ,Navy blue which have poor Color fastness properties because of their chemical structure.
Like Black color is a carbon base color and the particle size of carbon is large than the other colors that's why its rubbing properties are poor. Similarly red and blue are in the same case. So to improve the color fastness we add more binder to improve the fastness properties of these colors. It doesn't mean that we can not achieve the best results with these colors. The required results can achieve but production cost will be increase. On the other hand the construction of the fabric also effects the fastness properties.
If the rubbing fastness on 100.80/40.40 is 3 on the gray scale it will be 2-3 on 52.52/22.22 with the same printing parameters. So always keep in mind these effects during finalize the required parameters with your customer .
Always Check
- Quality construction
- Color
- Depth of the Color
- End Use of the product
Results which we can achieve in Normal Conditions are
Dark Shade | Medium shades | Light Shades | |
Dry | 3-4 | 4 | 4-5 |
Wet | 2-2.5 | 3 | 3.5-4 |
Label :
fastness
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Textile Technology: Rubbing Fastness Test | Color Fastness To Rubbing
There are two test methods for rubbing fastness. 1.ISO-105-X12 2.AATCC-08 In ISO-105-X12 the wet pickup of the rubbing cloth is 100% .Whil...
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