Mount the Fabric
A specimen of at least 50 × 140 mm is clamped flat on the tester.
Breistoffenfabrikant sinds 2009 · China
TESTMETHODE · ISO 105-X12
Kleurvastheid voor wrijving ISO 105-X12
ISO 105-X12 meet hoeveel kleur afgeeft op een witte katoenen doek, droog en nat. Bij donkere katoenen breigoed wordt natte wrijving meestal tot graad 3 gemeten. Het Amerikaanse equivalent is AATCC 8.
Proefstukken gesneden uit de partij.
Standaard
ISO 105-X12:2016
Amerikaans equivalent
AATCC 8
Donker katoen, nat
Tot graad 3
Beoordeling
Grijsschaal voor bevlekking, 1–5
01
What This Test Measures
A white cotton rubbing cloth on a rubbing finger is rubbed along the fabric under a fixed load, once dry and once wet. The colour on the cloth is graded with the grey scale for staining.
Wet rubbing is usually the harder test: water helps loose dye move from the fibre surface to the cloth, so dark and heavily dyed shades measure lower wet grades.
02
How We Run It in Our Lab
Our technicians follow a written work instruction for this method.
Dry and wet rubbing are run on separate specimens, in length and width when required.
Dry Rubbing
A cotton rubbing cloth (ISO 105-F09) on the 16 mm finger rubs 10 times to and fro along 104 ± 3 mm under 9 N.
Wet Rubbing
A fresh cloth is wetted to the pick-up of the named method (ISO about 100%, AATCC 8 about 65%), rubbed the same way and dried.
Grade
Rubbing cloths are graded with the staining grey scale in a light booth, backed by white cloth, by at least two technicians.
03
Test Conditions
Key settings. Write the method and procedure in your specification.
| Parameter | Setting |
|---|---|
| Rubbing finger | 16 mm round; 19 × 25.4 mm rectangular for pile fabrics |
| Load and track | 9 ± 0.2 N; 104 ± 3 mm; 10 cycles |
| Rubbing cloth | Cotton cloth to ISO 105-F09 (AATCC crock squares for AATCC 8) |
| Wet pick-up | About 100% (ISO 105-X12) or 65% (AATCC 8): name the method |
| Beoordeling | Grijswaarden voor bevlekking, 1–5 |
| Equivalent methods | AATCC 8 (US) · GB/T 3920 (China). Compare methods → |
04
Measured Range and Buyer Values
Results depend on fibre, construction, shade and finishing.
| Fabric / shade | Ons gemeten bereik | Values in buyer specifications |
|---|---|---|
| Dark 100% cotton knits, wet | Up to grade 3, depending on fabric and finishing | Grade 3; dark shades 2-3 |
Wet rubbing on dark cotton depends on dye, shade depth and finishing. “Our measured range” comes from our own test records on bulk lots. “Values in buyer specifications” are requirements we have received; the value that applies to your order is the one written into it. — Xiwen Zhang, Co-founder & CEO
05
Writing This Test into Your Specification
Group Shades
Many brands set wet rubbing at grade 3 for light and medium shades and 2-3 for dark shades. Agree the shade groups with the order.
Name the Method
ISO 105-X12 and AATCC 8 wet the cloth differently, so the same fabric can give different wet grades.
Ask About Options
If a dark shade needs a higher wet grade, ask us about after-treatment, dye selection or a blended fabric before production.
06
Questions About ISO 105-X12
Why is wet rubbing lower than dry rubbing?
Water helps loose dye move from the fibre surface onto the rubbing cloth, so more colour transfers, especially on dark shades.
What wet rubbing grade can dark cotton reach?
On our dark 100% cotton knits, wet rubbing usually measures up to grade 3, depending on fabric and finishing. We confirm the expected result for your shade before the order.
What is the difference between ISO 105-X12 and AATCC 8?
Both use a crockmeter with a 9 N load, but the wet rubbing cloth is wetted to about 100% in ISO 105-X12 and about 65% in AATCC 8, so wet results differ.