Test Method: SATRA TM185

Resistance to water spotting of leathers, textiles and coated fabrics

August 2021

SCOPE

This method is intended to determine the resistance of a material to spotting by water. Effects such as marking, staining, blistering and colour change are assessed. The method is mainly applicable to leathers, textiles and coated fabrics.

PRINCIPLE

Two drops of water are placed on the test specimen. After 30 minutes surplus water is blotted from one of the drops and any visible effects are observed. The other drop is left to evaporate for 16 hours and any visible effects on this and the specimen that had been blotted after 30 minutes are observed. Changes in colour are also assessed on both dried spotted areas using a grey scale.

REFERENCES

EN ISO 3696 – Water for analytical laboratory use. Specification and test methods.
ISO 105-A01 - Textiles - Test for colour fastness - Part A01 - General principles of testing.
ISO 105 – A02 - Textiles – Test for colour fastness - Part A02: Colour fastness of leather and textiles. Grey scale for assessing change in colour.

HISTORY

First issued May 1995. Revised August 2021.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

• Members: £75
• Non-members: £215

TYPE

• Discolouration

USAGES

• Leather - uppers and linings
• Textiles and coated textiles, including synthetic uppers and linings