Gustave Caillebotte, The Floor Scrapers, 1875
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Couilleboute Gustave Caillebotte, The Floor Scrapers, 1875 Final COST FP1006 meeting “Advances in modified and functional bio- based surfaces” at the Aristotle University of Thessaloniki, Thessaloniki, Greece, 7-9 April 2015
Transcript of Gustave Caillebotte, The Floor Scrapers, 1875
Couilleboute
Gustave Caillebotte,
The Floor Scrapers, 1875
Final COST FP1006 meeting “Advances in modified and functional bio-based surfaces” at the Aristotle University of Thess aloniki,
Thessaloniki, Greece, 7-9 April 2015
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Influence of Wooden Floor Surface Finish on its Colour and Gloss
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Influence of Wooden Floor Surface Finish on its Colour and Gloss
ANNA ROZANSKAPIOTR BEER
Faculty of Wood Technology, Warsaw University of Life Sciences
WULS - SGGW
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Traditional methods of wood impregnation consisted in soak ing itwith substances of natural origin: vegetable oils, beet sug ar, canesugar, paraffin, colophony, waxes, potassium alum, etc.
Varnishing (with the use of linseed oil) is the oldest known m ethodof surface finishing with substances that reduce the sorpti on ofwood and protect the parquet against dirt penetration and th eforming of stains.
Waxing was also used as the finishing method of antique parqu ets,and it was popular in furniture making since the baroque era.
The parquet finish has a major influence on its durability an d alsoon esthetical properties.
background methods results conclusion
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AIM OF STUDY
The research was aimed at specifying the properties of diffe rentfinish coatings used as traditional means of wooden floor su rfacefinishing, by analysing the changes in colour and gloss of sa mpleswithout finish coating and samples covered with wax and varn ish(natural linen oil).
The statistical analysis of colour test results was aimed at specifyingthe significance of the factors of wood species and surface f inish.
background methods results conclusion
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METHODOLOGY
Research was carried out on contemporary European oak(Quercus sp), elm (Ulmus sp), ash (Fraximus excelsior L.) and pinewood ( Pinus sylvestris L.).
We used natural bee wax and varnish prepared in accordance wi tha traditional formula (98% of linen oil and 2% of drying agent s).
background methods results conclusion
Microskopic image of wood soakedwith wax
Microskopic image of wood soakedwith varnish
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oak elm ash pine
chan
ge o
f glo
ss a
nd c
olou
r ∆
E*a
b gloss, varnish
colour, varnish
colour, wax
gloss, wax
background methods results conclusion
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background methods results conclusion
• Applied when hot, wax and varnish penetrate into the wood’sstructure, without creating a layer on its surface that coul d be,potentially, quickly damaged, losing its decorative value . Moreover,wax and varnish leave the effect of natural wood structure, w ith abeautifully highlighted pattern.
• The use of wax as surface finish does not result in too much col ourdarkening, increases the gloss and fills minor cavities in t he wood.
• Varnish darkens the surface, highlights the stains, and doe s not fillthe gaps, which may result in aesthetic defects.
• Traditional techniques and materials of surface finish con stitute animportant element of the cultural heritage of Europe.
• Studies of the resistance properties related with the appli cation oftraditional finishing materials show that it is possible to use themnowadays, as their properties are similar to the contempora rymethods.
