Laser ablation treatment of soiled featherworks: The first validation study

Ciofini, Daniele; Rossignoli, Guia; Tosini, Isetta; Lanterna, Giancarlo; Siano, Salvatore

doi:10.1016/j.culher.2022.06.009

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…For the feathers containing psittacofulvins, this is in agreement with the research by Solajic et al [39], who reported successful removal of soiling using a QS Nd:YAG laser at 1064 nm from red-orange scarlet macaw feathers (containing psittacofulvins [10]) with no apparent damage or discolouration to the feathers. Similar results were also reported by Ciofini et al [38] with QS and Long Q-Switch (LQS) Nd:YAG laser emitted at 1064 nm: they observed selective removal of soot-like deposits from red and yellow feathers from scarlet ibis and possibly scarlet macaw without any physical damage at both pulse widths. However, they noticed whitening and possible physical damage at prolonged exposures at elevated fluences.…”

Section: Removal Of Soiling From Feathers Using the Nd:yag Lasersupporting

confidence: 88%

“…Laser cleaning is contactless [20][21][22][23][24][25][26][27][28][29], which makes it a potentially very attractive technique to conserve feathers. However, only a few case studies on the laser cleaning of feathers have been published to date [30][31][32][33][34][35][36][37][38][39]. This study reports the outcomes of systematic laser cleaning tests on a wide range of feathers using a Q-switched Nd:YAG laser emitting at 1064 nm and 532 nm and an Er:YAG laser.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the potential of the Nd:YAG and Er:YAG lasers for the cleaning of feathers: a pilot study

Bertasa

Korenberg

2022

Herit Sci

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A dual-wavelength Q-switched Nd:YAG laser emitting at 1064 nm and 532 nm and an Er:YAG laser were tested on a range of feathers containing melanin, carotenoids and psittacofulvins. Dyed, white and iridescent feathers, as well as down feathers, were also included in the study. First, the damage threshold fluence was determined for each type of feather and then, as appropriate, laser tests were conducted on feathers artificially soiled with dust or carbon black. The Nd:YAG laser was unsuccessful at cleaning feathers soiled with carbon black. Better outcomes were obtained on feathers soiled with dust: the Nd:YAG laser was effective at both wavelengths at removing dust from white feathers, dyed feathers and yellow feathers containing psittacofulvins. Feathers containing melanin, as their main colourant, were found to have a much lower damage threshold fluence than other feathers. Also, laser radiation at 532 nm at high fluences can cause discolouration on pink feathers containing carotenoids. Finally, it was not possible to remove dust from down feathers without causing thermal damage. This investigation showed that laser cleaning using a Q-switched Nd:YAG laser can remove dust from certain types of feathers. However, further research is needed to assess any potential chemical or long-term effects of laser cleaning on feathers. Finally, the Er:YAG laser was found to be unsuitable for laser cleaning resulting in thermal damage to all feathers at low fluences.

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Section: Removal Of Soiling From Feathers Using the Nd:yag Lasersupporting

confidence: 88%