The Effect of the Accelerated Laboratory Ageing Factors on Linen Textiles Dyed with Turmeric Dye

Document Type : Original Article

Authors

1 conservation department Faculty of archeaology Sohag university

2 Faculty of Archaeology, Sohag University, Egypt.

3 Polymers Department, National Research Centre, Dokki, Giza, Egypt

4 Department of Chemistry of Natural and Microbial Products, National Research Centre, Dokki, Giza, Egypt

Abstract

Archaeological linen textiles in uncontrolled museums are exposed to many different damage factors. It is noticed in some Egyptian Museums that the differences in temperature and use of inappropriate light bulbs are the most enemies of dyed historical textiles. This article presents interesting results about the effect thermal and light ageing on optical, chemical and mechanical characterization of dyed linen textiles. New linen textiles are prepared and dyed with Turmeric similar to the ancient linen textiles. The new linen textiles were exposed to artificial heat and light ageing. A close examination was conducted by scanning electron microscope (SEM) and stereo microscope.  Fourier transform infrared spectral analysis (FTIR) and CIE-Lab values according to ASTM method D5035 were applied.  Among the most prominent results of the study was the appearance of oxidation and hydrolysis bands of cellulosic materials due to ageing process, in addition to the appearance of some bands that express a defect in the chemical structure of cellulosic materials, such as the spectral range at 435 cm-1.  

Highlights

  • The effect of thermal and light aging processes on the mechanical, physical and chemical properties of dyed linen textiles.
  • The effect of light aging processes was greater on the mechanical properties of the dyed fibers.
  • The effect of ultraviolet radiation and heat on the morphological and chemical composition of dyed flax fibers.

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