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Pretreatment Agents
Product Details

DHK120EA is a multifunctional scouring agent powder. Has excellent effect for cotton and blends. The fabric has good water absorbency and whiteness after treatment. Suitable for alkali and oxygen pre-treatment process for cotton, polyester-cotton knittd fabric, towel, bobbin, yarn, etc.

Key Features and Typical Benefits

-A multifunctional scouring agent with alkali, souring, penetration, chelation and other functions.

-Used in one bath alkali and oxygen bleaching treatment, only need to add DHK120EA, H2O2, simple to use.

-Used in cotton woven continuous pre-treatment process, can reduce the dosage of alkali.

-Fabric weight loss rate is low after pretreatment.

-Excellent dissolubility, can be dissolved in cold water.




Physical form



White powder

pH value(0.1% aqueous solution)



DHK120EA is a powdery product, it needs to be diluted by 25-30℃ warm water according to the ratio 1:20, can be used after completely dissolved. Suitable for batch alkali and oxygen one bath process of cotton, polyester-cotton knitted fabric, towel, bobbin yarn, etc, and also can be used in the continuous cold pad-batch and steam pre-scouring process.

1. Pretreatment process for cotton knitted, bobbin yarn, yarn:

DHK120EA:       1.5-4g/L

H2O2(100%):    1.5-2.5g/L

Bath ratio:        1:10

Temperature:     98℃

Time:           40-60 min

2.  Pretreatment process for T/C knitted, bobbin yarn, yarn knitted:

DHK120EA:      1-3g/L

H2O2(100%):   1.0-2.0g/L

Bath ratio:       1:10

Temperature:     98℃

Time:              40-60min

3. Jig dyeing pretreatment process for cotton and its blends:

DHK120EA:         1-3%(o.w.f)

H2O2(100%):       1.5-2.5%(o.w.f)

Temperature:       98℃

Run:               4-6

4. Cold pad-batch process for cotton woven fabric:  

NaOH:              10-25g/L

DHK120EA:           20-30g/L

H2O2(100%):         13-17g/L

Penetrating DHK107C:            2-5g/L

H2O2 Stabilizer:  1-3g/L

30-40℃ padding、curly、heap 16-24 hour-steaming-washing

5. Alkali and oxygen continous steaming process for cotton and its blends:

DHK120EA:           20-30g/L

H2O2(100%):         8-12g/L

Penetrating DHK107C:           2-5g/L

H2O2 Stabilizer:         2-3g/L

Padding (30-40℃)→Steaming(98-102℃×30-45 mins)→Washing.

Operating and safety instructions

1. Suggest weighing and diluting separately when preparing the solution.

2. Strongly recommend using soft water in dilution, if soft water is not available, the stability needs to be tested before making the solution.

3. After dilution, it should not be stored for a long time.

4. To ensure the safety, you should review our Material Safety Data Sheets before using this product under special conditions. MSDS is available from Qingdao Hengke. Before handling any other products mentioned in the text, you should obtain available product safety information and take necessary steps to ensure safety of use.

Package & Storage

Woven bag net 25kg, can be stored for 12 months under room temperature and hermetic condition without exposure to sunlight. 

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Qingdao Hengke Fine Chemicals Co.,Ltd