iosr-jpte   Volume-6 ~ Issue-1 ~ Jan. – Feb. 2019

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..

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

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.

Abstract: This paper reviews the quality perception of luxury fashion brand conducted in various people. An online survey of before and after contact on luxury fashion brand also conducted here. Data analyses about different prospect of luxury fashion brand as like its product quality, visit experience, satisfaction, buying experience, branding etc. Here illustrate the viewer's instance before and after contact the luxury fashion brand. This research is a questionnaire based research and the data collect from the answer. This Study investigated feedback effects on luxury brand quality perceptions and before & after contact condition using spss data analysis. Results show that luxury brand quality perceptions after and before contact for the experimental groups, who participated reviewing luxury brand products. Overall, the results generally support the opinion of different people for positive perceptions of luxury brands the research is done by a literature review, a frame work, data collection, data analysis and discussion.

Key-words: Quality perception, Luxury, luxury fashion brand, Quality, before contact, after contact

Abstract: Ikat technique is one of the oldest and ancient methods of fabric ornamentation made with the elegant touch of the hand of a weaver. This yarn resist the way of embellishment for cloth is entirely different from that of the fabric ikat due to its versatility of ornamentation in the field of intricacy, fineness and artisanship of a pure designer, probably evolved from Asia. Although, shuttle-less looms with sophisticated dobby and jacquard technology are introduced into the textile industry with high productivity, the traditional textiles until date attracts its class of customer all around the globe. Apart from it, many a country, by policy, wanted to nurture and preserve their cultural heritage and craftsmanship; until now most of them continue earning a good chunk of the foreign exchange on export................

Key-words: Kat, Tie-n-Die, Yarn resist, Auto-Ikat-Group-Former, Bobbin winding machine, sustainability

Abstract: Polymer matrix composites (PMCs) deserves a significant role in the new age engineering materials due to its unique properties like formability, room temperature processing, and economic nature. Main aspire of this proposed work is to investigate mechanical behaviour (flexural and tensile) of unfilled and 5, 10 Wt. % aluminium powder filled carbon/basalt hybrid composites produced via open mould followed by a compression process. Results collected from the experiments reveals that the inclusion of nano-aluminum powder greatly influences the mechanical properties of carbon/basalt/vinyl ester composites. Void fraction and densities intensified reasonably by the annexation of Al powder while the tensile strength shows a steady decrease. Carbon/basalt with 5 wt. % Al possess better properties whereas 10 wt. % Al reinforcement shows better tensile modulus. The Al included fiber configurations were compared with unreinforced composite laminate to grasp the optimum filler reinforcement percentage. SEM images of the fractured surfaces also analyzed for a better understanding of failure conditions.

Key-words: Mechanical behaviour, Carbon, Basalt, Aluminium powder, Open mould, Reinforcement, Vinyl ester, Polymer matrix composite.