ISO 105-X12 2016 – Textiles Colour Fastness to Rubbing

Colorfastness represents the ability of textiles to withstand external factors during processing and end-use, including xenon arc light, laundering, ozone exposure, and rubbing. This post will explore the test standard ISO 105-X12:2016 – Textiles colour fastness to rubbing, by crockmeter.

According to the lasted version ISO 105 X12 2016, this method cover the test method of textile colour fastness to rubbing by using crockmeter. It is suitable for all kinds of textile made from all kinds of fibres, yarn or fabric, including textile floor coverings and other pile fabrics, to measure the color staining.

1. What are essential to perfrom ISO 105 X12

• Crockmeter
  The crockmeter is able to do reciprocating straight line rubbing motion and equipped with 2 rubbing heads/fingers, with a track 104±2mm, and downward force 9±0.2N.
• 2 kinds of rubbing heads, Cylindrical & Rectangular
• Cotton rubbing cloth
• Abrasive paper
• Gray scale
• Constant temperature and humidity chamber for sample pre-condition before test.
  * All above equipment/consuambles are available from Unuo Instruments

2. How to perform the Textile colour fastness to rubbing test?

2.1 Prepare the sample
Cut sample with size not less than 50*140mm. Two for dry rubbing and two for wet rubbing.

2.2 Pre-Condition Sample Before test
The sample and rubbing cloth should be placed in the temperature and humidity chamber for at least 4 hours under temperature 20.0℃ and a relative humidity of 65.0% or agreed 23.0℃ and a relative humidity of 50.0% as per ISO 139.

2.3 Choose a right rubbing head
Rectangular rubbing head 19.0×25.4 mm: suitable for pile fabric, textile floor coverings
Cylinder rubbing head 16±0.1 mm: suitable for all kinds of fabric except for above materials

Rectangular rubbing head 19.0×25.4 mm                                  Cylinder rubbing head 16±0.1 mm

2.4 Dry Rubbing Test
Installed the rubbing cloth on the rubbing head, fix the sample on the crockmeter, rub the sample for 20 times, 10 times to and 10 times fro.

2.5 Wet Rubbing Test
Weight a piece of cloth, then soak in distilled water, reweigh to ensure take-up of 95% to 100%. Then test accord to dry test. Air dry the cloth.

3. Evaluation

3.1 During the assessment, place a backing of three layers of white rubbing cloth behind each tested rubbing cloth.

3.2 Grade the degree of staining on the cotton rubbing cloths using the grey scale for staining (4.4) under appropriate lighting conditions, as specified in ISO 105-A01:2010, Clause 14.

Unuo Instruments provides high-precision Electronic & Manual Crockmeters, standard ISO/AATCC cotton crocking cloths, and Grey Scales to textile laboratories worldwide. Contact Us Today For More Details.