pafert.blogg.se - Translucent paper carbon

Paper may be yellowed image may be faded with low contrast.

Paper surface is typically smooth and glossy. I Image/Text Aniline-based ink Identification Characteristic "crystal violet" ink color (although blue or black were sometimes also used) displaying little to no embossment.

Copy paper usually contained gelatin or alum rosin sizing high heat and humidity will cause accelerated deterioration (e.g.

May appear similar to spirit duplicates and diazo prints. Printed on bright white, smooth, glossy paper. I Image/Text Aniline-based ink Identification Typically "crystal violet" or blue ink with little to no embossment. Image courtesy of the University of Illinois Board of Trustees. Taken from an image of the ILIR Library Teamsters Contracts Vertical File, 1948-69 (35/3/415) from the University Archives. Preservationĭye-Ink Transfer Processes (Violet, blue, or black ink smooth surfaced) Hectograph Copy (Office) (1878 - 1970s) I Image/Text Carbon-based ink aniline-based ink Identification Viewed under magnification, text/image is made up of a distinctive pattern of evenly spaced dots embedded within the paper.

Courtesy of the Illinois History and Lincoln Collections, University Library, UIUC, University of Illinois Board of Trustees. Offset Lithography (Office) (1906 – present office use declines after 1960s) Image/Text Carbon-based ink aniline-based ink Identification May be difficult to distinguish from stencil copies. I Image/Text Carbon-based ink aniline-based ink Identification Difficult to distinguish from typed originals and from stencil copies, hectographs, lithographs, and spirit duplicates. Overall stable preservation risk depends primarily on quality of support material.Are water soluble as well as light and heat sensitive. May appear similar to hectographs and spirit duplicates. I Image/Text Carbon-based ink aniline-based ink (VERY COMMON) Identification Printed on rough, porous plain paper. May be printed on low-grade wood pulp paper.īlue ink stencil copy.

manifold, onionskin) typewritten originals are on opaque plain paper. Carbon copies are on a semi-translucent paper (e.g. I Image/Text Carbon-based ink aniline-based ink (VERY COMMON) Identification Almost always a single color but may be of any color. Office and Reprographic Printing Cheatsheet "Ink" on Paper Processes (Carbon black or blue aniline ink) Carbon Copy (1870s – 1980s)