DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES
In dyeing process, the object is to transport or diffuse dyes and chemicals into the fibre. Various novel processes, including ultrasound, are being introduced and studied as more environmentally friendly alternatives. Encouraging results have been reported for the use of ultrasound energy in dyeing...
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| Format: | Article |
| Language: | English |
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Editura Universităţii din Oradea
2014-05-01
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| Series: | Annals of the University of Oradea: Fascicle of Textiles, Leatherwork |
| Subjects: | |
| Online Access: | http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20II/Art.%20nr.%2047,%20pag%2063-68.pdf |
| _version_ | 1819002803020890112 |
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| author | MITIC Jelena STOJANOVIC D. Nenad SMELCEROVIC Miodrag UROSEVIC Snezana DJORDJEVIC Dragan |
| author_facet | MITIC Jelena STOJANOVIC D. Nenad SMELCEROVIC Miodrag UROSEVIC Snezana DJORDJEVIC Dragan |
| author_sort | MITIC Jelena |
| collection | DOAJ |
| description | In dyeing process, the object is to transport or diffuse dyes and chemicals into the fibre. Various novel processes, including ultrasound, are being introduced and studied as more environmentally friendly alternatives. Encouraging results have been reported for the use of ultrasound energy in dyeing processes of micro-viscose. The recent studies revealed major ultrasound applications advances: savings of processing time, energy, chemicals, as well as environmental protection. Influence of various ultrasound frequencies (40, 200 and 400 kHz) on dyeing of micro-viscose knitted fabrics, by a reactive dye has been reported in this work. A method of reflection spectrophotometry has been employed to record reemission curves of the colored compounds. A software packet has been employed to calculate CIELab colored coordinates. Then, a comparison has been made with samples colored by conventional procedure according to CIELab76 and CMC (2:1) criteria. The use ultrasound in textile dyeing processing offers many potential advantages. The results prove better dye exhaustion by ultrasound and consequently the better fixing. The exhaustion for the bifunctional dye (containing two vinylsulphone groups) reaches 71.75 % without ultrasound, and 83.69 % with 400 kHz ultrasound. The 40 kHz, 150 W ultrasound causes a cavitation of higher intensity, compared to 200 and 400 kHz ultrasounds. In this particular case, destruction of cavitation bubbles is very intensive. That is why a large amount of cavitation energy is being transformed into a heat, yielding the additional bath heating. The ultrasounds with higher frequencies (200 and 400 kHz) cannot use such a strong power. The applied powering this case reaches 0.6 W. The cavitation bubbles are now smaller the cavitation disintegration is not so strong, and the energy loss is much smaller, i.e. a smaller amount of energy has been transformed into a heat. An ultrasound of an equal power, but of higher frequency contributes to the somewhat higher exhaustion and fixing. The ultrasound dyeing produces much obscured colours, compared the standard. The differences are evident and not negligible. The comparison of the samples treated ultrasound of different frequencies during dyeing revealed the higher coulours intensities with the increase of ultrasound frequencies of the equal power (200 and 400 kHz). However, the increase is not so expressed. |
| first_indexed | 2024-12-20T23:10:54Z |
| format | Article |
| id | doaj.art-3d0afe8a69e3416e8d4c80cd8d7a37cd |
| institution | Directory Open Access Journal |
| issn | 1843-813X 1843-813X |
| language | English |
| last_indexed | 2024-12-20T23:10:54Z |
| publishDate | 2014-05-01 |
| publisher | Editura Universităţii din Oradea |
| record_format | Article |
| series | Annals of the University of Oradea: Fascicle of Textiles, Leatherwork |
| spelling | doaj.art-3d0afe8a69e3416e8d4c80cd8d7a37cd2022-12-21T19:23:44ZengEditura Universităţii din OradeaAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork1843-813X1843-813X2014-05-01XV26368DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIESMITIC Jelena0STOJANOVIC D. Nenad1SMELCEROVIC Miodrag2UROSEVIC Snezana3DJORDJEVIC Dragan4Higher Textile School, Serbia, Textile department, Vilema Pusmana 17, 16000 Leskovac, SerbiaHigher Textile School, Serbia, Textile department, Vilema Pusmana 17, 16000 Leskovac, SerbiaHigher Textile School, Serbia, Textile department, Vilema Pusmana 17, 16000 Leskovac, SerbiaUniversity of Belgrade, Serbia, Technical Faculty, Bor, Serbia, Vojske Jugoslavije 12, 19210 Bor, SerbiaUniversity of Nis, Serbia, Textile department, Faculty of Technology, Bulevar oslobodjenja 124, 16000 Leskovac, SerbiaIn dyeing process, the object is to transport or diffuse dyes and chemicals into the fibre. Various novel processes, including ultrasound, are being introduced and studied as more environmentally friendly alternatives. Encouraging results have been reported for the use of ultrasound energy in dyeing processes of micro-viscose. The recent studies revealed major ultrasound applications advances: savings of processing time, energy, chemicals, as well as environmental protection. Influence of various ultrasound frequencies (40, 200 and 400 kHz) on dyeing of micro-viscose knitted fabrics, by a reactive dye has been reported in this work. A method of reflection spectrophotometry has been employed to record reemission curves of the colored compounds. A software packet has been employed to calculate CIELab colored coordinates. Then, a comparison has been made with samples colored by conventional procedure according to CIELab76 and CMC (2:1) criteria. The use ultrasound in textile dyeing processing offers many potential advantages. The results prove better dye exhaustion by ultrasound and consequently the better fixing. The exhaustion for the bifunctional dye (containing two vinylsulphone groups) reaches 71.75 % without ultrasound, and 83.69 % with 400 kHz ultrasound. The 40 kHz, 150 W ultrasound causes a cavitation of higher intensity, compared to 200 and 400 kHz ultrasounds. In this particular case, destruction of cavitation bubbles is very intensive. That is why a large amount of cavitation energy is being transformed into a heat, yielding the additional bath heating. The ultrasounds with higher frequencies (200 and 400 kHz) cannot use such a strong power. The applied powering this case reaches 0.6 W. The cavitation bubbles are now smaller the cavitation disintegration is not so strong, and the energy loss is much smaller, i.e. a smaller amount of energy has been transformed into a heat. An ultrasound of an equal power, but of higher frequency contributes to the somewhat higher exhaustion and fixing. The ultrasound dyeing produces much obscured colours, compared the standard. The differences are evident and not negligible. The comparison of the samples treated ultrasound of different frequencies during dyeing revealed the higher coulours intensities with the increase of ultrasound frequencies of the equal power (200 and 400 kHz). However, the increase is not so expressed.http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20II/Art.%20nr.%2047,%20pag%2063-68.pdfknitweardyeingmicro-viscoseultrasoundCIELab |
| spellingShingle | MITIC Jelena STOJANOVIC D. Nenad SMELCEROVIC Miodrag UROSEVIC Snezana DJORDJEVIC Dragan DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES Annals of the University of Oradea: Fascicle of Textiles, Leatherwork knitwear dyeing micro-viscose ultrasound CIELab |
| title | DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES |
| title_full | DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES |
| title_fullStr | DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES |
| title_full_unstemmed | DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES |
| title_short | DYEING OF KNITTED MICRO-VISCOSE IN THE PRESENCE OF ULTRASOUND WITH DIFFERENT FREQUENCIES |
| title_sort | dyeing of knitted micro viscose in the presence of ultrasound with different frequencies |
| topic | knitwear dyeing micro-viscose ultrasound CIELab |
| url | http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20II/Art.%20nr.%2047,%20pag%2063-68.pdf |
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