Single bath dyeing of modified nylon/cotton blended fabrics using direct/acid dyes

2020 ◽  
Vol 49 (3) ◽  
pp. 165-170
Author(s):  
Kashif Iqbal ◽  
Amjed Javid ◽  
Abdur Rehman ◽  
Aisha Rehman ◽  
Munir Ashraf ◽  
...  
Keyword(s):  
Design Methodology ◽  
Positive Charge ◽  
Dye Uptake ◽  
Acid Dyes ◽  
Content Type ◽  
Chemically Modified ◽  
Dyeing Process ◽  
Color Yield ◽  
Single Bath ◽  
The Impact

Purpose This study aims to deal with the dyeing of nylon-/cotton-blended fabric in one bath using direct and acid dyes. Design/methodology/approach The cellulose in cotton/nylon-blended fabric was chemically modified using 3-chloro-2-hydroxypropyl tri-methyl ammonium chloride (CHPTAC) as cationizing agent to impart positive charge on the cellulose. The modified and unmodified blended fabrics were dyed in a single bath with direct and acid dyes under various concentrations of 0.5, 1, 2, 4 and 6 per cent on the weight of fabric by exhaust method. The dyeing of modified and unmodified fabrics was characterized through the properties such as K/S and colorfastness to washing, rubbing and light. Findings The modified fabric exhibited higher color yield, comparable rubbing fastness and good washing fastness. Originality/value The dye uptake was maximum in a single-bath dyeing process of nylon-/cotton-blended fabrics without electrolyte addition, which minimizes the impact of dyes on environment.

Tenacity and colorfastness properties of chemically modified jute fibres dyed with Reactive Orange 14 and Basic Violet 14

2016 ◽  
Vol 20 (2) ◽  
pp. 102-111
Author(s):  
Md Asadul Hoque ◽  
Md Saiduzzaman ◽  
A. Nayeem Faruqui ◽  
Md Ashadul Islam
Keyword(s):  
Design Methodology ◽  
Soap Solution ◽  
Reactive Dyes ◽  
Dye Uptake ◽  
Cellulosic Fibre ◽  
Light Fastness ◽  
Content Type ◽  
Chemically Modified ◽  
Dye Absorption ◽  
Reactive Orange

Purpose This paper aims to examine the loss of tenacity and colorfastness properties of bleached and modified (acrylonitrile, AN and methacrylonitrile, MAN) jute fibres dyed with Reactive Orange 14 and Basic Violet 14. Design/methodology/approach Jute fibres dyed with Reactive Orange 14 and Basic Violet 14 were studied as a function of exposure to sunlight in air, washing with soap solution and spotting with acids and alkalis. Findings Dye absorption of Basic Violet 14 was higher compared to Reactive Orange 14 at optimum dyeing conditions. Optimum dye uptake of Reactive Orange 14 required relatively severe conditions compared to that of Basic Violet 14. Whereas, Reactive Orange 14 showed overall good colorfastness to sunlight and moderate in washing compared to Basic Violet 14. All the bleached and modified fibres showed good colorfastness to weak acids and alkalis regardless of Reactive Orange 14 and Basic Violet 14 dyes. The loss in tenacity was higher in the case of non-modified fibres, and among the modified fibres, Basic Violet 14 showed the lowest loss in tenacity in the exposure to sunlight. Originality/value Many studies have been devoted to improve the substantivity of cellulosic fibre for reactive dyes. A few efforts were made to improve the light fastness. In this work, investigation will be made on a comparative study of loss of tenacity and colorfastness properties of bleached and modified (AN and MAN) jute fibres dyed with both Reactive Orange 14 and Basic Violet 14 on exposure to sunlight, washing and acid and alkali spotting. Optimum dyeing conditions will also be investigated for economic dyeing.

The effects of materialism on consumer evaluation of sustainable synthetic (lab-grown) products

2020 ◽  
Vol 37 (5) ◽  
pp. 579-590
Author(s):  
Jessica Keech ◽  
Maureen Morrin ◽  
Jeffrey Steven Podoshen
Keyword(s):  
Design Methodology ◽  
Socially Responsible ◽  
Content Type ◽  
Consumer Evaluation ◽  
Positioning Strategy ◽  
Consumer Markets ◽  
The Future ◽  
Promotion Strategies ◽  
Alternative Sources ◽  
The Impact

Purpose The increasing desire of consumers for socially responsible luxury products combined with fluctuating supplies in consumer markets are leading various industries to seek alternative sources to be able to meet the needs of its customers. One possible solution that may meet the demands of the future is lab-grown products. Because these products confer multiple benefits, this study aims to investigate the most effective ways to appeal to consumers by aligning the benefits of the products with their values as marketers seek to find effective promotion for these items. Design/methodology/approach We examine the effectiveness of an ethical positioning strategy for two types of luxury lab-grown (synthetic) products among high versus low materialism consumers in three experiments. Findings Findings suggest that a positioning strategy stressing product ethicality is more effective for low materialism consumers, whereas the strategy is less effective, and may even backfire, for high materialism consumers. The impact on social status consumers perceive from a lab-grown product explains why this effect occurs among low materialism consumers. Therefore, marketers should take caution and use specific appeals for different segments based on values such as consumers’ materialism levels. Originality/value If lab-grown products represent the wave of the future, it is important to understand how consumers will respond to this emerging technology and how promotion strategies may enhance their evaluation.

Embedding employability within higher education for the profession of policing

2019 ◽  
Vol 9 (3) ◽  
pp. 319-328
Author(s):  
Ian Pepper ◽  
Ruth McGrath
Keyword(s):  
Higher Education ◽  
Design Methodology ◽  
Research Study ◽  
Longitudinal Research ◽  
Evidence Base ◽  
Content Type ◽  
Educational Provision ◽  
Professional Body ◽  
The Impact ◽  
Practical Implications

Purpose The purpose of this paper is to evaluate the impact of an employability module, the College of Policing Certificate in Knowledge of Policing (CKP), on students’ career aspirations, their confidence and wish to join the police along with the appropriateness of the module. This will inform the implementation of employability as part of the College of Policing-managed Police Education Qualifications Framework (PEQF). Design/methodology/approach A three-year longitudinal research study used mixed methods across four points in time to evaluate the impact on students studying the employability module. Findings The research suggests that the employability-focussed CKP was useful as an introduction to policing, it developed interest in the police and enhanced the confidence of learners applying to join. Lessons learnt from the CKP should be considered during the implementation of the PEQF. Research limitations/implications The ability to generalise findings across different groups is limited as other influences may impact on a learner’s confidence and employability. However, the implications for the PEQF curriculum are worthy of consideration. Practical implications As the police service moves towards standardised higher educational provision and evolution of policing as a profession, lessons can be learnt from the CKP with regards to the future employability of graduates. Originality/value Enhancing the employability evidence base, focussing on policing, the research identified aspects which may impact on graduates completing a degree mapped to the PEQF. The research is therefore of value to higher education and the professional body for policing.

Investigation on the shaft voltage generation of large synchronous turboalternators

2020 ◽  
Vol 39 (5) ◽  
pp. 1145-1156
Author(s):  
Kevin Darques ◽  
Abdelmounaïm Tounzi ◽  
Yvonnick Le-menach ◽  
Karim Beddek
Keyword(s):  
Finite Element ◽  
Design Methodology ◽  
Short Circuit ◽  
Element Model ◽  
Stator Winding ◽  
Content Type ◽  
Voltage Generation ◽  
The Impact ◽  
Investigation Process ◽  
Circulating Currents

Purpose This paper aims to go deeper on the analysis of the shaft voltage of large turbogenerators. The main interest of this study is the investigation process developed. Design/methodology/approach The analysis of the shaft voltage because of several defects is based on a two-dimensional (2D) finite element modeling. This 2D finite element model is used to determine the shaft voltage because of eccentricities or rotor short-circuit. Findings Dynamic eccentricities and rotor short circuit do not have an inherent impact on the shaft voltage. Circulating currents in the stator winding because of defects impact the shaft voltage. Originality/value The original value of this paper is the investigation process developed. This study proposes to quantify the impact of a smooth stator and then to explore the contribution of the real stator winding on the shaft voltage.

Gated communities in Ankara: are they a tool of social segregation?

2017 ◽  
Vol 10 (5) ◽  
pp. 687-702
Author(s):  
Leyla Alkan-Gökler
Keyword(s):  
Socioeconomic Status ◽  
Design Methodology ◽  
Gated Communities ◽  
Content Type ◽  
Positive View ◽  
Social Segregation ◽  
Show Evidence ◽  
Local Residents ◽  
Almost All ◽  
The Impact

Purpose Gated communities, surrounded by walls or fences, have emerged as a new trend in almost all cities in Turkey, and are homogenous in terms of the socioeconomic status of their occupants. Within these communities, several facilities and services are provided that are available only to the residents, with restrictions on access from the outside, and this has led to criticisms of social segregation. This study aims to analyze the impact of these communities on social segregation in Ankara, through two different surveys aimed at investigating the attitudes of the residents of local neighborhoods and gated communities toward each other. Design/methodology/approach This paper analyzes how the process of gating has affected social segregation in Ankara through two separate surveys: with the residents of gated communities and with the residents of local neighborhoods around these gated communities. Findings The study revealed that the residents of gated communities tended to have a positive view of the residents of local neighborhoods. In contrast, the responses of the local residents show evidence of feelings of social segregation, based on the presence of the high walls, fences and guards that are in place to keep them out of the community. Originality/value This study shows that, although segregation from the rest of the society is not the main reason for gating, the emergence of gated communities in Ankara leads inevitably to a socially and economically segregated city in which local residents feel excluded from these gated areas.

Does knowing overcome wanting? The impact of consumer knowledge and materialism upon credit card selection with young consumers

2015 ◽  
Vol 16 (1) ◽  
pp. 50-70 ◽  
Author(s):  
Jakob Cakarnis ◽  
Steve Peter D'Alessandro
Keyword(s):  
Comparative Study ◽  
Survey Research ◽  
Credit Card ◽  
Design Methodology ◽  
Credit Cards ◽  
Consumer Knowledge ◽  
Content Type ◽  
Young Professionals ◽  
The Impact ◽  
Selection Of

Purpose – This paper investigates the determinants of credit card use and misuse by student and young professionals. Critical to the research is the impact of materialism and knowledge on selection of the appropriate credit card. Design/methodology/approach – This study uses survey research and partial least squares to investigate credit card behaviors of students versus young professionals. Findings – In a comparative study of young professionals and students, it was found that consumer knowledge, as expected, leads to better consumer selection of credit cards. Materialism was also found to increase the motivation for more optimal consumer outcomes. For more experienced consumers, such as young professionals, it was found that despite them being more knowledgeable, they were more likely to select a credit card based on impulse. Originality/value – This paper examines how materialism may in fact encourage some consumers to make better decisions because they are more motivated to develop better knowledge. It also shows how better credit card selection may inhibit impulse purchasing.

Handling negative publicity

2017 ◽  
Vol 21 (3) ◽  
pp. 267-286 ◽  
Author(s):  
Angie Chung ◽  
Hua Jiang
Keyword(s):  
Network Theory ◽  
Design Methodology ◽  
Content Type ◽  
Csr Communication ◽  
Subject Design ◽  
Negative Publicity ◽  
Associative Network Theory ◽  
Corporate Social ◽  
The Impact

Purpose Based on the framing theory and the associative network theory, the purpose of this paper is to develop and test a model that examines the impact of employing corporate social responsibility (CSR) communication in apology statements after negative publicity. Specifically, this study examines the role of CSR fit and CSR history in reducing anger and negative word-of-mouth (NWOM). This study also examines whether perceived CSR motivation and skepticism toward the apology statement mediate the effect of CSR fit and CSR history on anger and NWOM. Design/methodology/approach This study was a 2×2 between-subject design manipulating CSR fit (high or low) and CSR history (long or short). Findings The findings of this study suggest that strategically employing CSR communication in an apology statement after negative publicity may reduce negative consumer reactions. Originality/value The effects of CSR history and CSR fit have been studied in different contexts, but the effects of mentioning the two components in terms of apology statements had been understudied. This paper fulfills an identified need to study how employing CSR communication in apology statements after negative publicity can mitigate negative audience reactions.

Curbing electronic shopper perceived opportunism and encouraging trust

2017 ◽  
Vol 117 (10) ◽  
pp. 2210-2226 ◽  
Author(s):  
Sonia San-Martín ◽  
Nadia Jimenez
Keyword(s):  
Information Asymmetry ◽  
Structural Equation ◽  
Design Methodology ◽  
External Quality ◽  
Content Type ◽  
Theoretical Approaches ◽  
Quality Signals ◽  
The Impact ◽  
Relevant Factors ◽  
Analyze Data

Purpose Consumers can face a situation of information asymmetry in electronic shopping (ES). The purpose of this paper to examine the relationships between: relational variables such as satisfaction, trust and perceived opportunism; and website cues (cognitive signals such as security and personalization, and experiential signals, such as design and entertainment). Design/methodology/approach The paper opted for the structural equation methodology to analyze data collected from 447 Spanish e-shoppers. Findings Results show different factors that relate to satisfaction, trust and perceived opportunism in ES. Satisfactory experience with ES and entertainment emerge as the most relevant factors to achieve trust and prevent perceived opportunism in e-commerce. Originality/value The five contributions of this study are: the introduction of variables from several theoretical approaches to the study of an agency problem in e-commerce; the study of different ways to gain buyer trust and reduce perceived opportunism in an electronic shopper-vendor relationship; the application of signaling theory as part of the process of helping the principal (e-shopper) to solve their shopping problem in a context of information asymmetry; the analysis of the impact of external cues from e-vendor/site, which allows for a comparison between internal experiences and external quality signals; and the study of entertainment as an important hedonic variable in order to have satisfied and confident e-shoppers.

Study on the Dyeing Behavior of Wool Fiber Treated with Nano-SiO2/Ag Antibacterial Agent

2011 ◽  
Vol 332-334 ◽  
pp. 27-30 ◽  
Author(s):  
Mei Niu ◽  
Zi Lu Wu ◽  
Jin Ming Dai ◽  
Wen Sheng Hou ◽  
Sheng Shi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Antibacterial Agent ◽  
Important Influence ◽  
Wool Fiber ◽  
Experimental Results ◽  
Ultrasonic Frequency ◽  
Acid Dyes ◽  
Nano Sio2 ◽  
Dyeing Process ◽  
The Impact

Wool fiber was firstly pretreated by nano-SiO2/Ag antibacterial agent, and then dyed with an acid dyes at low temperature by ultrasonic dyeing. Many factors had an important influence on the dye ability and the antibacterial behavior during the dyeing process of antibacterial wool fiber. The experimental results indicate that the dye-takeup rates of antibacterial wool fiber were enhanced with the increase of the concentration of nano-SiO2/Ag, the dyeing temperature, the dyeing time and the ultrasonic frequency (less than 60Hz). However, the antibacterial ratios of wool fiber were declined in the impact of these factors other than the concentration of antibacterial agent.

scholarly journals Assessing the impact of libraries – the role of ISO 16439

2018 ◽  
Vol 119 (1/2) ◽  
pp. 87-93 ◽  
Author(s):  
Claire Creaser
Keyword(s):  
Design Methodology ◽  
International Standards ◽  
Content Type ◽  
International Standard ◽  
The World ◽  
The Difference ◽  
Library Impact ◽  
The Impact

Purpose Library impact and how to evaluate it has been debated for a number of years. While the activity – the busy-ness – of the library is now routinely measured and described, the difference the library makes is less tangible and harder to measure. Libraries in all sectors and worldwide are grappling with this issue, and the purpose of this paper is to summarise international standards available to support them. Design/methodology/approach The first international standard concerning library impact, ISO 16439 Information and documentation – methods and procedures for assessing the impact of libraries, was published in 2014 after several years in development. Findings The standard describes a range of methods for assessing library impact which have been used across the world in a variety of libraries in all sectors. Originality/value This paper summarises the key methods described in the standard, and gives references for further reading.

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