Series-1 (Jan–Feb 2019)Jan–Feb 2019 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | Influence of Natural and Artificial Mordants on the Dyeing Performance of Cotton Knit Fabric with Natural Dyes |
| Country | : | Bangladesh |
| Authors | : | Shuvo Brahma || Md. Rashedul Islam || Salima Sultana Shimo || Rasheda Begum Dina |
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: | 10.9790/019X-06010106  |
Abstract: This work aims on an effort to determine the effect of some natural and artificial mordants on various natural dyes for cotton fabric dyeing. As natural mordant Eucalyptus Bark, Arjun Bark and Khair was used on cotton knit fabric under the treatment of three natural dyes namely Marigold, Eucalyptus leaf and Henna. As artificial mordants, potash alum and tannic acid were used along with natural mordants for further improvement of color strength. The cotton knit fabrics were scoured & bleached before dyeing. Concentrations of mordants were varied. Color strength and wash fastness properties were evaluated to determine the best mordant for particular dyes. It was observed that both the color strength and wash fastness properties increased with the application of mordants especially artificial mordants.
Keywords: Natural dye, Natural Mordant, Artificial Mordant, Color strength, Fastness Properties..
[1]. D. Jothi, Extraction of natural dye from African marigold flower (Tagetes erectal ) for textile, Text. Chem. Color, 26 (4), 2016, 17-24.
[2]. N. A. Udeani, Potential of Henna Leaves as Dye and Its Fastness Properties on Fabric, Woodhead Publishing.
[3]. L. lewellyn, Bryan D, Stain Theory – How mordants work, Archived from the original on August 14, 2007.
[4]. Phipps, Elena, Cochineal Red The Art History of a Color, Yale University Press, New Haven and London. 2010, 34.
[5]. S. Ali , N. Nisar& T. Hussain (2007)."Dyeing properties of natural dyes extracted from eucalyptus," The Journal of The Textile Institute, 98:6, 559-562, DOI: 10.1080/00405000701556079].
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| Paper Type | : | Research Paper |
| Title | : | Pedagogical Formation of Teachers and the Licentiates' Curriculum for the Quality of Basic Education |
| Country | : | |
| Authors | : | Leonice Matilde Richter |
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: | 10.9790/019X-06010713 |
Abstract:In Our goal is to understand the learning process of teachers, the reality of the curriculum, the pedagogical practice and its effect on the teacher's formation within the Basic Education. The methodological design had a bibliographical and a documental research along with interviews performed. The context was two Federal Universities from Minas Gerais State. The results has shown that the teachers from Licentiate Courses are post-graduated, government employees with an exclusive dedication contract. However, it lacks pedagogical didactic. The continuing formation happens individually and in congresses; there are barriers to the interdisciplinary work; the work conditions hardens the innovative practice. Concluding, there is a need to move towards achieving higher quality..
Key-words: Teacher's training; pedagogical formation; quality on the Basic Education
[1]. BRASIL. Ministério da Educação. Lei 9.394/96. Lei de Diretrizes e Bases da Educação Nacional. Brasília: MEC, 1996.
[2]. BRASIL. Constituição: República Federativa do Brasil. Brasília: Senado Federal, Centro Gráfico, 1988.
[3]. BRASIL, Ministério da Justiça/CORDE. Declaração de Salamanca e Linhas de Ação sobre Necessidades Educativas Especiais. Brasília: MJ/CORDE, 1994.
[4]. BRASIL. MEC/CNE. Resolução Nº 2, de 1º de Julho de 2015.
[5]. Disponível em: <http://intranet.uemg.br/comunicacao/arquivos/RES-2-2015%20CP-CNE,%20Diretrizes%20Curriculares%20Nacionais%20para%20a%20forma%C3%A7%C3%A3o%20inicial%20em%20n%C3%ADvel%20superior.pdf> Acesso : 20 out.2015.
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| Paper Type | : | Research Paper |
| Title | : | Effects of Cationizer on Different Shade Percentage of Reactive Dye for Dyeing Cotton Knit Fabric |
| Country | : | Bangladesh |
| Authors | : | Kamrunnahar || Tarifun Akter || Jannatul Ferdush || Marzia Islam |
|
: | 10.9790/019X-06011419 |
Abstract: This research is mainly focusing on the influence of cationizer on color fastness and shade variation of cotton fabric dyed with bi-functional reactive dyes. Dyes which have been selected for the study contain both chloro triazine and sulphone reactive groups in the same molecule. After treating the fabric with cationizer, these samples are dyed in two different hues (Red & Blue) at three shade percentage (o.5%, 1.0%, 2.0%) followed by exhaust method. The fastness ratings are compared between the cationizer-free dyed samples and cationizer-treated dyed samples of the respective shade percentage. This experiment has revealed that the dyed fabric treated with cationizer has resulted in a general improvement in wash and rubbing fastness. Not only that, the color strength and color co-ordinate of the all the samples are measured by spectrophotometer to differentiate the cationizer treated samples to only dyed specimen. However, after testing of all samples, it is observed that fabric dyed after cationization process gives a satisfactory result than fabric dyed with only reactive dye.
Key-words: Reactive dye, cationizer, shade percentage, color fastness, color strength.
[1]. Ana ML, Grancaric, Mario V, Rosa, Anita (2005), "Handle of Cotton Knitted Fabrics: Influence of Pretreatments" World Textile Conference Autex 2005.
[2]. Charles Tomasino (1992), "Chemistry and Technology of Fabric Preparation and Finishing" Chemistry and Science College of textiles North Carolina state university.
[3]. Min SK, Tae JK (2002),"Dimensional and Surface Properties of Plasma and Silicone Treated Wool Fabric" Text Res J 72: 113-120.
[4]. Nihat C (2008)," Effect of Nano-Silicon Softener on Abrasion and Pilling Resistance and Color Fastness of Knitted Fabrics"