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E-mail：ceo@dsfchem.com
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CLASSIFICATION
Wet rubbing fastness improver DS-RB
Wet rubbing fastness improver DS-RB
Wet rubbing fastness improver DS-RB is a waterborne polyurethane poly-cationic compound, It has excellent wet friction fastness effect that can obviously enhance the fastness for direct dye, reactive dye, sulfur for dark cellulose fiber dyeing process. Particularly for the dark wet rubbing fastness like the dark black, scarlet red and turquoise DS-RB can get improved up to 2 or 3 grade of fastness
Product property:
1/Never destroy the fastness of dyed fabrics
2/It can be used to fix color after dyeing with cellulose fiber reactive dyestuff, and has excellent effect of improving the fastness to wet rubbing, which can be increased by 2- 3 grade and is up to above 3 grade.
3/Neither effect on the fastness exposed to the sun. Nor effect on the color and the fastness exposed to the sun. Feel soft to the touch of the fabric,
4/Environmentally products, free of APEO, DMF, formaldehyde, organic halides and heavy metals
Chemical and physical properties:
Item：Wet rubbing fastness improver DS-RB
Appearance: light yellow to yellowish transparent Solution
PH Value:4.0±1.0(1%deionized water)
Ionicity: cations
Compatibility：Compatible with cationic, non-ionic products, Good acid stability; Incompatible with anionic products: Soluble with water
Storage: Stored at 5℃-50 ℃ for 12 months
Applied range:
Suitable for improving wet rubbing fastness for direct, reactive, sulfur dyes dyed on cellulose fibers
Application:
Impregnation (for Denim washing)
Wet rubbing fastness improver DS-RB
4-8%（o.w.f.）（Adjust according to chromaticity ）
Silicon oil 2-8%（o.w.f.）（In accordance with client’s requirement of hand-feel of fabric applied
Bath ratio：1:10-20
Ph value：≤7
Rotor drum：Room temperature×20-30min for dry at 100～120℃
Dip rolling process (recommended process)
Wet rubbing fastness improver DS-RB 30-50g/l silicone oil 20-80g/l bath ratio: 1: 10-20 Ph: ≤ 7?
Process:
One dip and one rolling
Take-up 70-80％ Drying: At 100℃-120℃
Finished: 150-160℃×90sec
Notice
1/The prepared working fluid should be translucent at 25 ℃. Please use it immediately after prepared
2/The trial sampling test should be done well before bulk production, and the above process should be used for reference only.
3/Customers who are required to use silicone oil together that have little effect on fabric fastness after finishing.