+34 937 548 880

+34 937 548 880

+34 937 548 880

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architecture

Find below the blog posts related to architecture:

New conservation methodolgy to retrieve lost flexibility to brittle tracing paper

Approach to a new methodolgy to retrieve the lost flexibility to brittle paper. Tracing paper -so usual among technical drawings- have in common their transparency, but there are significant differences in the process to make them. The properties and behavior will be very different then. Impregnated papers, for an instance, were applied oils or varnishes to provide them translucency. Explanation restoration of several drawings in which the varnish was removed to replace it later.

Silver-gelatine photographs conservation

New Elimination Procedure for Silver Mirroring. Silver mirroring is a type of deterioration that appears in most gelatin developing-out paper (DOP) historical photographs and black-and-white films. Its treatment involves so many problems that it has often been ruled out. In this article we present a new and simple elimination procedure, which is efficient and offers stable results in the long term. The study of the causes of the formation of silver mirroring sheds light on aspects that had been little explained so far: the fact that this type of deterioration always appears on the surface of the image leads us to consider a mechanism of transport of electrical charges.

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