Transmission Rate and Ultraviolet Protection Factor of five Different Fibers against Ultraviolet Radiation

Document Type : Original Article


1 Department of Medical Physics, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Ahvaz, Iran.

2 Department of Radiology Technology, Faculty of Behbahan Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

3 Department of Instructor of Radiology Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Ahvaz, Iran.


Background and Objectives: Iran is located between the tropic of Capricorn and tropic of cancer, which is exposed to the high amount of ultraviolet radiation. The study was aimed to assess transmission rate and ultraviolet protection factor of five artificial and natural, synthetic fibers at different distances from sources and with two of different sources of radiation.
Subjects and Methods:In this descriptive and analytical study five different samples of fibers were used. All fibers had equal thicknesses, surface of contact areas and strain rates. Both natural of sunlight and artificial (point and wide) sources of ultraviolet lamps were used. The fibers are placed directly in front of each source at distances of 1, 3, and 9cm. In each test, the measurement was repeated three times and the average of measurements was recorded.
Results: The transmission of cotton fibers and combination of wool and polyester exposed to ultraviolet radiation was highest and lowest, respectively. While the transmission rate decreased, the quantity of ultraviolet protection factor increased. The transmission rate for woolen fibers was lower than 0.05 w /m2. Therefore, the quantity of ultraviolet protection factor was higher.  
Conclusion: In contrast to other fibers, fibers that have wool in their structure have higher quantities of ultraviolet protection factor. So, because of the low transmission rate and high absorption rate, woolen fibers can be considered as the best fiber in the classification of materials for protection against the ultraviolet radiation.


1-International Commission on Radiological Protection (ICRP).Recommendations of the international commission on radiological protection.Oxford, Pergamum Press; 1991.ICRP Report No.60.
2-Abu-Kazemi E, Sepehry H, Binesh A. Introduction to health physics. Tehran: Center Iran University Publisher; 1992. P. 270-75.
3-Bulasubramanian D. Ultraviolet radiation and cataract. Jour OcaulPharmacolTher 2000;16(3): 285-97.
4-World Health Organization.Ultraviolet Radiation. USA: WHO Press; 1998.P.1-20.
5-Block SS. Disinfection, Sterilization and Preservation. 4th ed. Philadelphia: Lea and Fibiger; 1990.
6-Martin EL, Reinhardt RL, Baum LL.The effect of UV radiation on the moderate halophilchalomonas elongate and extreme halophile Halobacteriumsalimarum. Can J Microbial 2000: 46; 180-187.
7-Banrud H. Use of short wave ultraviolet radiation for disinfection in operating rooms.Tidsskrift for den norskLaegeforening 1999; 119(18): 2670-3.
8-Robyn L,Tony MM, Wayne S, Bruce A. Global disease burden from solar ultraviolet radiation. Geneva: World Health Organization Report; 2006. P. 15-43.
9-Kumar S,  Orsini M,  Lee J,  McDonnell P,  Debouck C,  Young P. Activation of the HIV-1 long terminal repeat by cytokines and environmental stress requires an active CSBP/P38 MAP Kinas. The Journal of  Biology Chemistry 1996; 48(271): 30864-69.
10-IARC On the  evaluations of carcinogenicity to humans. France, Lyon: ARC Working Group on the Evaluation of Carcinogenic Risks to Humans; 2007.
11-WHO, estimating the global disease burden due to ultraviolet radiation exposure. Int J Epidemiology 2008; 37(3): 654-67.
12-Millington KR. Photo yellowing of wool. Part 1: Factors affecting photo yellowing and experimental techniques. Color Technal 2006; 122(4): 169-186.
13-Davidson RS.The photo degradation of some naturally occurring polymers. J Photo Chem Photo Biol 1996; 13(33): 3-15.
14-Hocker H,  Simpson WS, Crawshaw GH. Wool: science and technology. CRC Press: Cambridge, England; 2002. P.60-80.
15-Tung WS, Daoud WA. Photo catalytic self-cleaning keratins: a feasibility study. ActaBiol 2009; 5(1): 50-56.
16-Millington KR, Mourdev G,  Proc. 11th Int Wool Text Res Conf Leeds, UK. 2005.
17-Zhang H,  Millington KR, Wang X. A morphology-related study on photo degradation of protein fibers. J Photo Chem& Photo biology B: Biology 2008; 92(3): 135-143.
18-Schafar K. Proc 8th Int. Wool Text Res Conf. Vol 6. Christchurch, New Zealand. 1990: 250.
19-Gambichler T, Ratterdam S, Altmeyer P, Hoffmann K. Protection against Ultraviolet radiation by commercial summer clothing: need standardized testing and labeling. BMC Dematol 2001; 1(6).
20-Menter JM, Hatch KL.Clothing as solar radiation protection.CurrProblDematol 2003; 31: 50-63.
21Merdan N, Koçack D, Şahinbaşkan BY, Yüksek M. Effects of UV absorbers on Catton fabrics. Advances in Environmental Biology 2012; 6(7): 2151-57.
22-Poorhashemi S, Falahati S, Saidmir M. Investigating the rate of UPF in 100% cotton annular rib textiles processed with silver nano-particles3 2012; 22 (3):198-204.
23-Seifolahzadeh S, Montazer M. Self-cleaning of Methylene Blue and Acid Blue 113 on Wool/Polyester Fabric Treated with Nano Titanium Oxide under UV Irradiation without Yellowing. Journal of color science and technology 2010; 4(2) : 115-123.