Evaluating the use of laser radiation in cleaning of copper embroidery threads on archaeological Egyptian textiles

تکنولوجیا اللیرز وتطبیقاته فى مجال علاج وتنظیف خیوط التطریز المعدنیة النحاسیة على المنسوجات الأثریة – دراسة تجریبیة تحلیلیة

“…Many materials are used; like some organic solvents such as methanol or Perchlorethylene with some (30) Nonionic Surfactant, or using some acidic solutions such as Formic acid to remove the corrosion layers of embroidery copper threads or using some alkaline solutions such as ammonium hydroxide to remove products corrosion of copper and silver embroidery threads, either by the normal application methods or using the poultice method with paper pulp saturated with the cleaning material (1) However, one of the main disadvantages of this method is the chemicals residues deposition and the formation of new corrosion compounds layers on the embroidery threads surface with high acidity, causing the fading of the textile dyes and the destruction of internal embroidery fillings and other components (11) .…”

Application of lasers for corrosion cleaning of ancient textiles with metallic threads

“…Primenа lаserа u čišćenju predmetа kulturne bаštine poslednjih godinа postаlа je nezaobilazna metodа u konzervаciji eksponаtа rаzličitog mаterijаlа. Postoji veliki broj publikovаnih rаdovа iz ove oblаsti koji prezentuju primenu lаserа u čišćenju kаmenа [8], mermerа [9], stаklа [10,11] , kerаmike [12,13], zidnog slikаrstvа [14,15], slike nа plаtnu i drvetu [16], metаnih eksponаtа [17][18][19][20][21], tekstilu [22,23], drugih orgаnskih i bioloških uzorаkа [16] itd.…”

Detachment of Cu (II) and Co (II) ions from synthetic wastewater via adsorption on Lates niloticus fish bones using LIBS and XRF

“…It is also possible to use LIBS in situ with portable systems because of its simplicity and compactness of the required equipment contrary to other techniques such as Atomic Absorption Spectroscopy or Inductively Coupled Plasma Optical Emission Spectroscopy. LIBS has significant potential in the environmental applications, for tracing pollutants and for the detection of heavy metals contamination [17] , [18] , [19] . On the other hand, XRF as a well-established spectrochemical analytical technique offers some unique advantages as being fully non-destructive, requiring minimal sample preparation, simple and suitable for in situ use with portable equipment.…”