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An Evaluation of the Humidity Test Method ISO 18946

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Humidity sensitivity is one of the potential degradation routes of digitally printed images. An ISO Working Group has been developing a test method for this sensitivity that is presently being published as ISO 18946. This work describes some practical experience in using the test method together with a treatment of errors from the results.

The paper first reviews some previously published work in this field as background to the development of this standard. It will then go on to illustrate some practical experience of the use of this method to test humidity sensitivity in a number of print / media combinations.

The paper gives details of the changes that result from humidity sensitivity of a number of print and media combinations, predominantly from inkjet printing. Combinations utilising a number of dye and pigment based inkjet inks and media types are used to illustrate the work. This paper also compares and contrasts the results from the different test conditions described in ISO 18946 and the differences in humidity sensitivity of various areas of the proposed test target. The results are presented in both colorimetric (numeric) terms and as photomicrographs.
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Document Type: Research Article

Publication date: 2011-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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