Showing papers in "Journal of The American Institute for Conservation in 1986"
TL;DR: In this paper, the effects of five types of ageing on textiles are examined, i.e., physical, photochemical, thermal, chemical and mechanical, and changes in the structure and properties of textiles that result from each type of ageing are discussed.
Abstract: General effects of five types of ageing on textiles are examined. The types of ageing discussed are physical, photochemical, thermal, chemical and mechanical. Changes in the structure and properties of textiles that result from each type of ageing are discussed in general terms. This paper is expected to provide conservators of polymeric materials (textiles in particular) with a basic understanding of some of the more important changes in textiles that result from ageing.
39 citations
TL;DR: This document is intended to be used for educational purposes only, and should not be used as a guide to other uses, unless otherwise stated.
Abstract: -. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. .. .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -- ........ ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......... . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .
23 citations
TL;DR: It was found that although each fumigant had the ability to stop or retard fungus growth, neither was totally effective in preventing fungus spores from germinating.
Abstract: O-phenyl phenol (OPP) was evaluated in tests designed to simulate its proposed use as a fumigant by archives and libraries to control fungus growth. It was compared with thymol (isopropyl-meta-cresol) for its ability to render the spores of seven species of common fungi non-viable, and it was found that although each fumigant had the ability to stop or retard fungus growth, neither was totally effective in preventing fungus spores from germinating.
21 citations
TL;DR: In this article, the use of glass micro spheres in Acryloid B-72 is discussed as a gap filler for water sensitive materials, and the reconstruction of a polychromed wood Egyptian shawabti using these materials is described.
Abstract: The use of glass micro spheres in Acryloid B-72 is discussed as a gap filler for water sensitive materials. The reconstruction of a polychromed wood Egyptian shawabti using these materials is described.
20 citations
TL;DR: In this article, a graphical method was described which permitted calculation of the specific rate constant for the first-order rate of fading of the intermediate stage of the alizarin lake mixed with a photochemically-inert titanium white.
Abstract: In the course of photochemically-induced fading, alizarin lake mixed with a photochemically-inert titanium white in a poly(vinylacetate) vehicle apparently passes through a yellow intermediate stage. A simple graphical method is described which permitted calculation of the specific rate constant for the first-order rate of fading of the yellow intermediate.
17 citations
TL;DR: In a previously published paper on the application of parylene technology to conservation as discussed by the authors, the author proposed that Parylene vapor polymerization might have applications in the consolidation of bound books which have become weakened or embrittled due to the high acid content of the paper.
Abstract: In a previously published paper on the application of parylene technology to conservation, the author proposed that parylene vapor polymerization might have applications in the consolidation of bound books which have become weakened or embrittled due to the high acid content of the paper. When applied to paper substrates, this process is irreversible. It is not known at this time whether the benefits derived from use of the material will be great enough to overcome the reluctance to use such an irreversible procedure.The princpal purpose of the present paper is to introduce to the conservation community the basic concept that weakened or brittle books may benefit by gas phase treatment with the paraxylylenes. Areas under discussion are: explanation of parylene, characteristics of the polymer, the deposition process, response of books to the application of a medium vacuum, technical problems posed by bound volumes, the gaseous diffusion phenomenon, the problem of polymer thinning, determination of ...
15 citations
TL;DR: In this paper, the authors present the general characteristics of Tibetan thangka paintings and the forms of damage to which they are susceptible to, and present a discussion of the general properties of these paintings.
Abstract: The purpose of this discussion is to present the general characteristics of Tibetan thangka paintings and the forms of damage to which they are susceptible.
12 citations
TL;DR: In this article, a pair of boots from the Aleutian Islands were examined and treated for identification of hair and pigments, and the use of cast paper pulp as a filling material for seal skin was described.
Abstract: During the course of the examination and treatment of a pair of boots from the Aleutian Islands, the author was confronted with problems regarding materials identification. Lack of suitable hair identification keys and possible contamination of pigments by pesticides are discussed. Identification of hair and pigments is reported. Use of cast paper pulp as a filling material for seal skin is described in the treatment section.
9 citations
TL;DR: In this article, a 3.8 cm thick block of stacked layers of 100% cotton bond Crane's Kid Finish in Pearl White color was mounted in a diffusion cell and diffused in directions both normal (perpendicular) and parallel to stacked sheets of paper.
Abstract: Sulfur dioxide (0.5% to 1.0%) in air at 73°F and 57% relative humidity was used to measure the effective diffusivity of sulfur dioxide through paper. A 3.8cm thick block of stacked layers of 100% cotton bond Crane's Kid Finish in Pearl White color was mounted in a diffusion cell. Diffusion studies were made in directions both normal (perpendicular) and parallel to stacked sheets of paper. An average effective diffusivity of 0.0072 cm2/s and a tortuosity of 4.7 were calculated for the diffusion of sulfur dioxide normal to the paper. An average effective diffusivity of 0.036 cm2/s and a tortuosity of 1.0 were calculated for diffusion parallel to the paper.
6 citations
TL;DR: In this article, the corrosion products on a silver dragon suspected to have been treated with cyanide revealed both silver cyanide and chalconatronite, which can be formed on silver objects cleaned or replated using a cyanide solution.
Abstract: Analysis of the corrosion products on a silver dragon suspected to have been treated with cyanide revealed both silver cyanide and chalconatronite. It appears that both of these corrosion products can be formed on silver objects cleaned or replated using a cyanide solution. These corrosion products darken with exposure to light; therefore, they may be mistaken for silver sulfide. In order to determine how to remove the highly poisonous cyanide corrosion product, numerous tests were run. Using a carefully timed procedure the silver cyanide was removed with an aqueous solution of 20% sodium thiosulfate. The chalconatronite was removed mechanically.
5 citations