The following instructions are based on conventional technology and roduction conditions,according to local water quality and different mateials,please verify the actual usage based on the experiment conditions to adapt to the technology and purpose of users.

Catalase is appropriate for various intermittent processing equipments,such as purified cotton production,yarn dyeing machines,jet overflow dyeing,etc.

1. Bleed off the used oxygen bleaching liquid;

2. Cold water cleaning once ,or directly add cold water to fit the dyeing bath ratio.

3. Neutralizing with acid,control the pH in 6-8 and the temperature below 50°C,room temperature is recommended;

4. Adding 0.2-0.5g/L catalse (increase dosage to 0.5-3g/L for continuous device or some need of shorter processing time).There is no any risk to use catalase excessively.

5. Ater operating 10-20 minutes,chec whether the hydrogen peroxide has completely decomposed.(It can be checked by MERCK Hydrogen peroxide test strips)

6. Continue dyeing in the same bath.