| Studies on the influence of power ultrasound on dye penetration in leather dyeing using photomicrographic analysis. | |
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MedLine Citation:
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PMID: 16269061 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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The use of power ultrasound in enhancing diffusion rate in various chemical as well as physical processes is gaining in importance. The influence of power ultrasound in the leather dyeing process on enhancing the penetration of dye through the leather matrix was studied. The penetration of dye through a leather cross-section for a given time in the presence and absence of an ultrasonic field (33 kHz, 150 W) was studied by photomicrographic analysis using a stereomicroscope. Different types of black dyes, such as Acid black 1, Metal complex black 194 and Direct black 155, were used for dyeing leather in the present study. Photomicrographic analysis of a cross-section of dyed leather indicated better penetration of dyes through the leather matrix with the use of ultrasound than without it. Therefore, the results indicate that ultrasound helps to improve the diffusion of dye and to reduce diffusional resistance in the leather dyeing process. |
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Authors:
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V Sivakumar; G Swaminathan; P G Rao |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of microscopy Volume: 220 ISSN: 0022-2720 ISO Abbreviation: J Microsc Publication Date: 2005 Oct |
Date Detail:
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Created Date: 2005-11-04 Completed Date: 2005-12-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0204522 Medline TA: J Microsc Country: England |
Other Details:
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Languages: eng Pagination: 31-5 Citation Subset: - |
Affiliation:
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Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai, India. vsivagi@yahoo.com |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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