UV resistance treatment finish is an essential part of textile functional finish. At present, the market prospects of textiles with uv resistance are very broad, and the varieties of uv resistance fabrics are increasingly extensive. Such as swimsuits, tennis shirts, golf suits, jackets and so on. In addition, military textiles like field combat uniforms, tents, advertising cloth, tarpaulin, etc. These fields put forward higher requirements against UV finishing.
High energy UV radiation is easy to cause textile fiber aging and dye fading. Therefore, it is of great significance to enhance the UV protection of textiles for protecting human health and improving the fastness to the sun. Anti-ultraviolet fabric is not only used for clothing fabrics, but also used for sun umbrella, decorative fabrics, etc.
During textile processing, UV absorber determines the overall protection effect. It can not only protect dyes and polymer material fibers from being destroyed under the catalysis of light, more importantly, it could keep human skin health.
UV absorbers can be applied to fabrics by Textile post treatment process, like dipping and coating, sol-gel and magnetron sputtering. For synthetic fiber fabrics and Nylon, UV absorber can be added into the processing bath when dyeing at high temperature and high pressure. In this method, uv absorber can penetrate into the fabric without affecting the feel of the fabric.
Evaluation standard of UPF value
UPF | Protecting effect | UV transmittance/% | UPF Grade |
15～24 | Good | 6.7～4.2 | 15,20 |
25～39 | Well | 4.1～2.6 | 25,30,35 |
40～50 | Super | ≤2.5 | 40,45,50,50+ |
A suitable UV absorber for textiles should meet the following requirements:
① Safe and non-toxic, no allergic reaction to human body.
② Satisfy the regulation of environmental protection.
③ Good resistance to common solvents and Daily washing.
④ No staining after absorption of ultraviolet light.
⑤ It has no negative effect on the physical properties of the fabric, such as whiteness, fastness, strength.
OMNISTAB additive Solutions for high-end textiles:
Category | Product | Chemcial class | Product form | Product features & advantages |
UV Absorber | OMNISTAB UVP | Benzotriazoles | Light Yellow Crystal | Cost-effective & High-efficiency.
Strong UV absorption in the range of 300-400nm.
Widely used in Polyester and Spandex fibre. |
OMNISTAB UV366 | Benzotriazoles | Light Yellow powder | High Molar Extinction Coefficient, which is 2.6 times of Benzophenone, and is 1.8 times of Benzotriazoles.
Wide UVabsorbtion effect in UVA&UVB band.
Special absorbability to fibers & Effectively inhibit photooxidation degradation reaction in Polyester fibre. |
Light stabilizer | OMNISTAB LS5519 | HALS | White crystalline powder | Multi-function stabilizer specially for Nylon. |
OMNISTAB LS292 | HALS | Light yellow liquid | Suiltable for Water-based system, such as Water-based textile finishing agent. |
If you are interested, welcome to contact our sales staff. Deltachem(Qingdao) Co., Ltd. sincerely looks forward to your inquiry!
