Is your wearing are pH value free? For your clothing safety.

What is pH?
pH is the measurement of residual acidity or alkalinity of a textile.

Why is it restricted?
A pH of greater than 8 or less than 4 may cause skin irritation depending on the sensitivity of the wearer.

How does it get into the product?
The preparation, dyeing and finishing of Textiles can involve the use of chemicals that have high levels of acid and alkali, the pH is usually monitored throughout the process, however the final washing process is usually where the pH is monitored and corrected.

What are the Legal requirements?
The scale for pH goes from 1 to 14 where 1 is highly acid and 14 is highly alkaline, neutral pH is therefore around 7.5 on this scale.
There are no legal requirements for pH, most Retailers will set their limits for residual pH between 4 and 7.

Test Methods
BS EN ISO 3071:2006
GB/T 7573
AATCC81

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