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- Title
Photodegradation of the Holly Kaaba Cover Fabric by the Environmental Conditions in Mecca City.
- Authors
Tera, Ferial M.; Elnagar, Kh.; Elamoudy, E. A.
- Abstract
Samples of the holly Kaaba jacquard silk cover fabric were exposed directly to the prevailing environmental conditions at Mecca city in the Kingdom of Saudi Arabia (KSA) through whole one year and at different successive periods. Thus, the incident solar energy (ISE) values and the accompanied amount of UV radiation were evaluated for the whole exposure periods, together with average maximum temperature and relative humidity values and also the total amount of sunny hours. The produced photophading was assessed by following the changes in the physical and mechanical properties. Thus, losses of tensile strength and elongation percent, together with the change in drape, stiffness, weight and the thickness were assessed and discussed. Moreover, the changes in the color parameters: brightness (L), red-green component (a), yellow-blue component (b) and the allover color difference (ΔE) changes, in addition to the color strength expressed as (k/s) values, besides the light fastness ratings were also examined. It was concluded that, the prevailing severe environmental conditions together with the air pollution at that urban site had contributed greatly to the observed degradation of all examined properties of the holly Kaaba silk cover fabric. Maximum losses were observed at summer time and during the pilgrim period.
- Subjects
TEXTILES; JACQUARD textiles; PROPERTIES of matter; ULTRAVIOLET radiation; PHOTODEGRADATION; KA'BAH (Mecca, Saudi Arabia)
- Publication
Journal of Textile & Apparel Technology & Management (JTATM), 2012, Vol 7, Issue 4, p1
- ISSN
1533-0915
- Publication type
Article