ZZ-UV4 Polyamide Polyester Multi-Functional Light Fastness UV Absorber
Product Introduction
Developed as a light fastness enhancer for polyester, polyamide and modified polyester fibers, this product features excellent uniform adsorption capacity and is suitable for internal addition, heat setting, and one-bath dyeing processes.
Physical and Chemical Properties
Chemical Description: Dispersion of benzotriazole derivatives
Appearance: Milky white slurry liquid
Ionicity: Anionic
pH Value (1% aqueous solution): 5.0~8.0
Product Features
Highly dispersed into fine micro-particles with excellent leveling performance.
Good sublimation resistance; applicable for post-finishing setting and features great compatibility with other textile auxiliaries.
Eco-friendly and free of substances of very high concern (SVHC).
Application Method
1. Padding Process
Dosage: 20–50 g/L, adjusted according to fabric type and technical requirements.
Mix ZZ-UV4 with softener or other functional finishing agents for one-bath padding and setting.
2. Internal Addition
Dosage: 2–3% based on fabric weight, adjusted according to fabric type and requirements.
Mix ZZ-UV4 evenly with water-based adhesive before application.
3. One-bath Dyeing Process
Disperse Dye: X%
ZZ-UV4: 1–3%
Leveling Agent: 0.5–1.5%
Acetic Acid: Adjust pH to 4.5–5
Liquor Ratio: 1:10 – 1:20
Heat up to 130℃ and hold at constant temperature for 30–60 minutes for dyeing.
Adjust the heating rate and dyeing time properly according to different dye varieties.
Packaging and Storage
Packaging: 25kg/drum, 60kg/drum, 120kg/drum
Storage: Store indoors at 5–30℃, keep away from direct sunlight and place in a cool and ventilated area.
Shelf Life: 6 months
Reminder
The data listed in this document is consistent with our practical production experience. Due to various influencing factors during application, users shall test the adaptability of selected products and processes in advance. Please feel free to contact our company if you have any questions before use.
English
Español 




