Consumers have become increasingly aware of the need for sun protection, which is related to the incidence of sun induced skin damage and its relationship with increased exposures to UV light. UV radiation can lead to acute and chronic reactions and damage, such as acceleration of skin ageing and sunburn.
The unfinished fabric has the limitation to guarantee adequate protection.The unfinished fabric has the limitation to guarantee adequate protection. Thus, a special additional sun protection finish is applied in the form of UV stabilizer–UVS-327. Electromagnetic radiations of wavelength between 150 and 400 nm are termed as Ultraviolet rays. |
|
The construction of woven and knitted fabrics and the fiber types have a great influence on protection from ultraviolet transmittance. The ultraviolet protection factor (UPF) of textiles depends on their construction, the spaces between the yarns, their fiber types, the color, the textile impregnation, and the presence of optical brighteners and ultraviolet absorbers.
UV Absorbers are also designed to improve light fastness of disperse-dyed polyester fabrics and yarns, particularly automotive upholstery and floor coverings
According to the As/NZS, UPFs are classified in 3 categories:
UPF s of 15 to 24 (ratings 15 and 20) offer good protection;
UPFs of 25 to 39(ratings of 25,30 and 35) very good protection; and
UPFs of 40 and higher (ratings 40,45, 50 and 50+) excellent protection.
Textiles with a UPF of less than 15 are not labeled
Application Methods
Padding
Exhaust
In dyebath
Test Methods
UPF measures both UVA and UVB
Garments are tested according to AATCC test method 183
AS / NZS 43991996
|
