Notice catalographique « Microfade tester versus light bleaching unit : a comparative experiment »
- Titre
- Microfade tester versus light bleaching unit : a comparative experiment
- Auteur ou éditeur
- Prokopchuk, Christina
- Queen's University
- Lieu de publication
- Kingston, Ontario
- Maison d'édition
- Queen's University
- Date de publication
- 2015
- Collation
- 91 p., bound
- Résumé
- "The purpose of this study is to compare the dose-response rate of bleaching (colour change) of historic papers using two different methods of light bleaching, dry/xenon arc lamp microfade tester (4.2 MIx) versus alkaline water/fluorescent light bleaching unit (19000 lx), in order to determine how well microfade testing can predict the rate of light bleaching by artifical light sources. Such diagnostic information, better equips the conservator in planning and carrying out an effective artifical light bleaching paper treatment by more accurately considering the unique characteristics of the object, while also adjusting for variables such as: aqueous immersion time, light source heat buildup, and the desired degree of brightening (whitening).
- For this experiment, three samples sets were created from two discoloured paper objects of unknown history. Three samples, one from each sample set, were tested with the microfade tester. A separate series of samples, from each sample set, were treated by
- alkaline water/fluorescent light bleaching at varying 30 minute intervals, up to 480 minutes. Data from the rate and degree of brightening of both the microfade tested samples and alkaline water/fluorescent light bleached samples were graphed and compared. After experimentation the alkaline water/fluorescent light bleached samples showed a greater degree of bleaching at a lower amount of light dose exposure. In this
- particular case, the microfade tester did not have the potential to be used as a prediagnostic tool for an artificial light bleaching treatment."
- Notes
- Research Report (M.A.) - Queen's University, 2015
- Langue
- English = Anglais
- Sujet
- Paper - Analysis
- Paper - Conservation and restoration
- Paper - Deterioration
- Papier - Analyse
- Papier - Conservation et restauration
- Papier - Détérioration
- Pays
- Canada
- Type de document
- Monograph = Monographie
- Localisation
- Z 701.3 C57 2015
- Clé
- 17993
- Collection
- Catalogue