Beta
254068

Visual Assessment of Coptic tapestry fragments, red ‎monastery excavation, Upper Egypt‎

Article

Last updated: 23 Jan 2023

Subjects

-

Tags

-

Abstract

This study presents visual measurements for dye fading of archaeological tapestry fragments dated to the 4th century of Coptic period.  The objects were discovered at the red monastery of Anba Bishoi and Anba Bigo, Sohag, Upper Egypt. They are suffered from many physical deterioration aspects, such as fading, weakness, dryness and staining. So the need to estimate the rate of damage visually becomes argent. The International Organization for Standardization (ISO) and Japanese Industrial Standards (JIS) introduced visual and instrumental color fastness evaluation methods. Instrumental methods aren't preferable to be used in our study, because taking samples is not always acceptable. So, the challenge for any conservator is how to visually measure the rates of dyes fading, which is happen ,due to thermal and light degradation. This paper deals with a physical method for determine the changes of the dyes colour in archaeological textiles by creating standard symbols, referred to different forms of the dyed textile fading. As it was sufficient to represent the degree of fading of dyed textiles by arbitrary steps, which represent the change in shades of dyes and coded with symbols characterized the rate of fading in a simple way. Furthermore, coding the direction of change is noted. and the extent of change is estimated subjectively by adding numerical value and Chroma through munsell book of colour. By all these visual estimation methods of morphological appearance, the conservator could document the state of damage safely.

DOI

10.21608/midcul.2019.254068

Keywords

Fading, physical, dyes, Red monastery, munsell book.‎

Authors

First Name

neven

Last Name

fahim

MiddleName

-

Affiliation

faculty of archaeology, the conservation department

Email

nkf00@fayoum.edu.eg

City

fayoum

Orcid

0000-0002-1623-5125

Volume

3

Article Issue

2

Related Issue

31525

Issue Date

2019-07-01

Receive Date

2022-08-11

Publish Date

2019-07-01

Page Start

3

Page End

18

Print ISSN

2682-3152

Link

https://midcul.journals.ekb.eg/article_254068.html

Detail API

https://midcul.journals.ekb.eg/service?article_code=254068

Order

254,068

Type

المقالة الأصلية

Type Code

2,210

Publication Type

Journal

Publication Title

مجلة مرکز حضارات البحر المتوسط

Publication Link

https://midcul.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

23 Jan 2023