Cradling is a process used in the
restoration
Restoration is the act of restoring something to its original state and may refer to:
* Conservation and restoration of cultural heritage
** Audio restoration
** Film restoration
** Image restoration
** Textile restoration
* Restoration ecology
...
and preservation of
paintings on wooden panel. It consists in mounting a grid of wooden slats to the back of a
painting
Painting is the practice of applying paint, pigment, color or other medium to a solid surface (called the "matrix" or "support"). The medium is commonly applied to the base with a brush, but other implements, such as knives, sponges, and ...
to create a reinforcement and preserve the flat paint surface.
Slats in either the horizontal or vertical direction are permanently fixed to the back of the panel, whilst the secondary
perpendicular
In elementary geometry, two geometric objects are perpendicular if they intersect at a right angle (90 degrees or π/2 radians). The condition of perpendicularity may be represented graphically using the ''perpendicular symbol'', ⟂. It can ...
slats remain loose, held solely in place by the upper row. This allows for a degree of movement in the panel, which may
warp
Warp, warped or warping may refer to:
Arts and entertainment Books and comics
* WaRP Graphics, an alternative comics publisher
* ''Warp'' (First Comics), comic book series published by First Comics based on the play ''Warp!''
* Warp (comics), a ...
, subject to changing levels of dampness and
atmospheric pressure
Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1013.25 millibars, 7 ...
.
This procedure can often be found on
paintings of the 16th and 17th centuries, when painting on wood and particularly oak panel was widely practiced.
There are numerous reasons for choosing to cradle a panel. This can be done to piece back together a painting which has split and cracked over time. It can also be done to consolidate, preserve or straighten back a panel which may have warped.
There are detrimental factors to consider before cradling a painting. It is an
interventive procedure which may involve sanding the back of the panel in order to create a flat surface to affix the cradling. It is a non reversible procedure which alters the condition and state of a work of art, which triggers
ethical issues
Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ma ...
.
With many cradled paintings the sliding cradle members will get stuck due to the movement of the panel. This leads to much tension and cracks in the panel and permanent deformation. Applying a cradle to the back of a panel painting almost always leads to more severe structural problems depending on the climate in which the painting is kept and the way the planks of the panel were saw. Nowadays, in the modern world of conservation cradling a painting has been outdated and subject to criticism.
Duke University and The University of Brussels have developed an art conservation tool that uses X-rays and algorithms to analyze the paintings. To better image the art piece, for it is of wood sections (cradles) the machine called Platypus or the computer math program sorts out the wood and finely visualizes the original art.
References
{{Cultural Conservation-Restoration , state=expanded
Conservation and restoration of paintings