The development of a tannin-based after-treatment for cotton fabric dyed with sulphur dyes

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Quratulain Mohtashim ◽  
Muriel Rigout ◽  
Sheraz Hussain Siddique Hussain Yousfani
Keyword(s):  
Cotton Fabric ◽  
Practical Implication ◽  
Treatment Method ◽  
Future Research ◽  
Fastness Properties ◽  
Sodium Sulphide ◽  
Content Type ◽  
Wash Fastness ◽  
Finishing Agent ◽  
Cellulosic Fibres

Purpose Sulphur dyes provide an inexpensive medium to dye cellulosic fibres with heavy shade depths. They offer moderate to good fastness to light and wet treatments. However, owing to the environmental hazard produced by the use of sodium sulphide, the practical implication of these dyes is steadily decreasing. Moreover, these dyes are prone to oxidation causing pronounced fading on exposure to laundering. This paper aims to present the green processing of sulphur dyes by using a biodegradable reducing agent in place of sodium sulphide to dye cotton fabrics. The study also proposes after-treatments with tannin to improve the fastness properties of the dyeings. Design/methodology/approach In this study, dyeings were produced on cotton fabric with a range of C.I. Leuco Sulphur dyes, which were reduced with sodium sulphide and glucose. Sulphur dyeings were after-treated with an environment-friendly tannin-based product (Bayprotect CL (BP)); subsequently, the after-treated samples were evaluated for colour strength, wash, light and rubbing fastness. Findings A novel after-treatment method was developed, which substantially improved the wash fastness of C.I. Leuco Sulphur Black 1 dyeing to ISO 105 C06/C09 washing. However, the degree of this improvement varied for the other sulphur dyes used. The surface morphology and the possible mechanisms for the improved fastness properties were also discussed. Research limitations/implications The effect of after-treatment was significant for improving the wash fastness of sulphur black dyeings in particular, while the effect on other colours was minor. Significant improvements were observed for light and wet rub fastness for most of the dyeings, which signifies the importance of tannins as a finishing agent. Practical implications It is observed that the tannin-based product, BP, is found to provide the photoprotective effect by improving the lightfastness of the dyeings. Future research may involve the exploration of various tannins as a finishing agent to sulphur dyeings. Originality/value This novel finishing technique is found significant for improving the wash fastness of sulphur black 1 dyeings for both the reducing systems. Improvements were also observed for light and wet rub fastnesses for most of the dyeings.

Light fading, rub and wash fastness of sulphur-dyed cotton fabrics aftertreated with cation–tannin protective system

2020 ◽  
Vol 49 (6) ◽  
pp. 431-439
Author(s):  
Quratulain Mohtashim ◽  
Muriel Rigout ◽  
Sheraz Hussain Siddique
Keyword(s):  
Public Awareness ◽  
Cotton Fabrics ◽  
Reducing Agent ◽  
Fastness Properties ◽  
Sodium Sulphide ◽  
Content Type ◽  
Wash Fastness ◽  
Goods And Services ◽  
Protective System ◽  
The Impact

Purpose Sulphur dyes are the most highly consumed colourants for cellulosic substrates owing to their reasonable cost and acceptable fastness. However, the use of noxious conventional reducing agent, sodium sulphide and impaired wash fastness against oxidative bleaching is gradually decreasing the market of these dyes. As the need for “Green” goods and services is raising public awareness, this paper aims to use a glucose-based biodegradable reducing agent in place of sodium sulphide to dye cotton fabrics with a range of commercial sulphur dyes. The study also proposes an aftertreatment method to improve the fastness properties of the dyeing. Design/methodology/approach The paper investigated the impact of a newly developed aftertreatment method on the fastness properties of dyeing. This involved the sequential application of a cationic fixing agent (Tinofix ECO) and tannin (Bayprotect CL) on the coloured fabrics and subsequent evaluation of colour strength, washing, light and rubbing fastness. Findings The effect of aftertreating the dyed cotton was found to significantly improve the light and wet rub fastness. The surface morphology of the dyeing remained unaffected as depicted by the absence of any finish residues. Research limitations/implications The protective effect of the cation–tannin aftertreatments was examined with a view to providing the necessary commercial performance; however, it was established that the dry rub fastness was either reduced or remained unaffected and the wash fastness to International Organization for Standardization 105 C09 was also marginal. Originality/value This finishing technique is novel and can be found useful for manufacturing sulphur-dyed products with the improved light and wet rub fastness.

On the regulatory changes in government accounting development in Indonesia

2018 ◽  
Vol 8 (3) ◽  
pp. 387-411
Author(s):  
Pran Krishansing Boolaky ◽  
Nitri Mirosea ◽  
Kishore Singh
Keyword(s):  
Local Government ◽  
Practical Implication ◽  
International Standards ◽  
Future Research ◽  
Content Type ◽  
Post Colonial ◽  
Accounting Practice ◽  
Government Accounting ◽  
Regulatory Changes ◽  
History Of

Purpose The purpose of this paper is to inquire into the history of government accounting, using a well-grounded periodisation, in order to provide a chronology of government accounting development (GAD) in Indonesia from 1845 to 2015 focusing on development on accounting regulations and systems and practices in local government in Indonesia. Design/methodology/approach It collects archival data and then uses a descriptive tradition of research to capture mainly regulatory changes affecting GAD from colonial to post-colonial period. Findings The paper reports major regulatory changes, evolution in local government accounting practice, development of government accounting standards (GASt) and converging GASs with international standards. Research limitations/implications This study is important to accounting historians and other academics because it provides a detailed chronicle of accounting regulatory changes in Indonesia which can be used for future research. The limitation(s) of this study is that is data collection which was not easily accessible and as results have to rely on various sources. Practical implications The study has an important practical implication. It has produced a time series register of regulatory changes affecting GAD in Indonesia. It can be used as a reference document in the National Library of Indonesia and also by academics for future research. Originality/value A times series register, for the first time, is produced which provides a comprehensive chronology of accounting development in Indonesia.

Maintenance of public hospital buildings in Nigeria – an assessment of current practices and policy options

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Andrew Ebekozien ◽  
Okechukwu Saviour Dominic Duru ◽  
Okhatie Emmanuel Dako
Keyword(s):  
Health Care ◽  
Public Hospital ◽  
Practical Implication ◽  
Design Stage ◽  
Future Research ◽  
Policy Options ◽  
Content Type ◽  
Hospital Administrators ◽  
Automation Systems ◽  
The Government

Purpose The recent COVID-19 pandemic has exposed the declining conditions of many of the hospital buildings, especially in developing countries. Past studies have shown inadequate maintenance practices but how far regarding Nigerian public hospital buildings is yet to receive empirical research. This paper aims to investigate the underlying issues leading to inadequate maintenance practices and proffers policy options to improve Nigerian public hospital buildings via an unexplored dimension. Design/methodology/approach The study used a mixed research design method involving both qualitative and quantitative data. First, results from the qualitative phase were analysed and verified at the quantitative phase through a well-structured questionnaire, developed from the qualitative findings across hospital maintenance experts (work/maintenance department, health-care provider, design team and health-care building/service contractor) in Abuja, Lagos and Benin City. Findings Insufficient funds for maintenance works, absence of planned maintenance programmes, inadequately trained personnel, etc., emerged as the maintenance inadequacies in the public hospital buildings across the cities covered. The paper categorised the cause of inadequate maintenance practices of public hospital buildings into six groups: statutory requirements, design stage, construction stage, budget for maintenance task, managing maintenance unit activities and user’s perception regarding maintenance management. Research limitations/implications This paper is limited to maintenance practices of Nigerian public hospital buildings. Future research is needed to evaluate factors that will enhance outsourcing maintenance and the use of the 4th industrial revolution (building information modelling for refurbishment and building automation systems) amongst others in maintenance practices of public hospital buildings. Practical implications As part of the practical implication, the government and hospital administrators should make provision for adequate funding and accountability of annual maintenance budgetary allocation. Also, the government should establish a national maintenance policy for public infrastructure with an emphasis on preventive maintenance and contractor’s reputation, outstanding pedigree, technical and financial soundness during build maintenance contract award, etc., were recommended. Originality/value This paper reveals that the stakeholders, especially hospital administrators, policymakers and political office holders that are concern with maintenance budget, approval and disbursement concerning maintenance practices in public hospital buildings need to reawaken to her responsibility because of the inadequate implementation across the cities covered.

Critical types of knowledge loss in military organisations

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mukesh Kumar Singh ◽  
Vikas Gupta
Keyword(s):  
Practical Implication ◽  
Future Research ◽  
Knowledge Loss ◽  
Content Type ◽  
Data Coding ◽  
Types Of Knowledge ◽  
Critical Knowledge ◽  
Km Strategy ◽  
Theoretical Sampling ◽  
Constant Comparative Analysis

Purpose Premature departure of highly skilled and experienced soldiers is detrimental to the excellence of a military organisation. The organisation can achieve knowledge superiority over adversaries, only if it acknowledges the organisation’s critical knowledge and undertakes necessary steps to preserve it. The purpose of this paper is to find out the critical types of knowledge loss in military organisations when a soldier departs. Design/methodology/approach This study uses grounded theory methodology with purposive/theoretical sampling of experts from the Indian Air Force, coding and constant comparative analysis to construct different knowledge categories. ATLAS.ti 8 was used for data coding and analysis. Findings This paper identifies eight types of knowledge categories in a military organisation and specifies the criticality of each category. Research limitation/implication This study has been piloted on a single organisation with a limited number of samples. However, the results can be used in future research on exploring generalisation. This study is unique in providing useful insights into the types of critical knowledge loss in a military organisation. Research infuses theoretical rigour to the knowledge management (KM) literature and provides impetus to study various aspects of KM in a military organisation. Practical implication This study provides the first set of guidelines for the leaders in military organisations to develop a KM strategy for knowledge loss. Research lists specific and actionable areas of knowledge for the commanders to act with considerable savings to exchequer, time and effort. The result could be reasonably generalised for other military setups in the world. Originality/value This paper is highly innovative and would significantly contribute to the under-explored area of KM in military organisations and the KM literature.

Fruit shells of Camellia oleifera Abel as natural colourants for pigment printing of cotton fabric

2017 ◽  
Vol 46 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Monthon Nakpathom ◽  
Buppha Somboon ◽  
Nootsara Narumol ◽  
Rattanaphol Mongkholrattanasit
Keyword(s):  
Cotton Fabric ◽  
Textile Industry ◽  
Camellia Oleifera ◽  
Fastness Properties ◽  
Light Fastness ◽  
Content Type ◽  
Colour Fastness ◽  
Colour Strength ◽  
Screen Printing Technique ◽  
First Time

Purpose The present study aims to focus on the feasibility of using an aqueous extract from the fruit shell of Camellia oleifera Abel as a source of natural colourant in printing-paste preparation for pigment printing of cotton fabric. The effects of pre- and post-mordanting with three common metallic mordants, that is AlK(SO4)2, CuSO4 and FeSO4 on colour yield and colour fastness properties are also investigated. Design/methodology/approach The printing paste was prepared by mixing the concentrated Camellia oleifera Abel fruit shell extract solution with commercially available synthetic thickener and binder. The fabric sample was printed with the prepared printing paste using a flat-screen printing technique. To determine the effects of pre- and post-mordanting, AlK(SO4)2, CuSO4 and FeSO4 mordant aqueous solutions with various concentrations were applied using the pad-dry technique. Comparisons between printing with and without mordants were evaluated in terms of colour strength (K/S values) and colour fastness to washing, light, crocking and perspiration. Findings Without the mordants, the printed fabric had a yellowish brown shade with acceptable colour fastness properties, that is fair to good wash fastness, moderate light fastness, good to very good crocking fastness and fair to good perspiration fastness. The use of mordants, especially CuSO4 and FeSO4, not only enhanced colour strength but also imparted different colours to the fabric. Compared to the unmordanted fabrics, colour fastness properties were mostly comparable or improved in the mordanted fabrics depending on the type and concentration of mordants. Research limitations/implications Although in the case of CuSO4 the light fastness was increased to a good to very good level, it is recommended that the final print be produced with a concentration of less than 0.125 gL−1 to yield the print with the residual amount of Cu metal under the limit, that is less than 50 ppm as regulated by the Oeko-Tex® standard. Practical implications The obtained prints from Camellia oleifera Abel fruit shell extract provided shades with satisfactory colour fastness to washing, light, crocking and perspiration. The extract from Camellia oleifera Abel fruit shell has the potential to be used as an alternative to synthetic dye in the textile industry. Originality/value The use of Camellia oleifera Abel fruit shells, which are considered as abundant byproducts of tea seed oil production, as natural colouring agents for pigment printing of cotton fabric has been reported for the first time. It will minimise the environmental impact of this waste and create more valuable textile products.

The rise and decline of TQM in the NHS

2014 ◽  
Vol 26 (5) ◽  
pp. 499-509 ◽  
Author(s):  
Uche Nwabueze
Keyword(s):  
Quality Management ◽  
Sample Size ◽  
Practical Implication ◽  
Real Life ◽  
Leadership Role ◽  
Future Research ◽  
Rapid Decline ◽  
Total Quality ◽  
Content Type

Purpose – The purpose of this paper is to delineate the factors responsible for the decline of total quality management (TQM) in the National Health Service (NHS). It is suggested that if these factors were initially identified and eliminated prior to implementation, the decline of TQM as a strategy for improving the provision and delivery of quality patient care could have been prevented. Design/methodology/approach – The case study approach was chosen because it is the preferred method when “how” or “what” questions are being posed. It is applicable as is evident in this paper where the researcher has little control over events and when the focus is on a contemporary phenomenon within some real-life context. The case study enables the researcher to give an accurate rendition of actual events; it contributes uniquely to the knowledge of individual, organisational, social, and political phenomena. The semi-structured face-to-face interview constituted the main data collection technique of the research. Interviews were held with 23 quality management managers in the British NHS. The central focus of the interview was on “what” factors contributed to the rapid decline of TQM in the NHS. The respondents were chosen because they were directly involved with the implementation of TQM. They were in the vintage position to offer a full insight into the TQM initiative. The analysis of the case is based on Yin's analytic technique of explanation building. Findings – The decline of TQM in the NHS could have been prevented if top executives in hospitals had adopted the sequential steps to quality improvement: In the authors opinion, to land a man on the moon needed a belief in the possibility and breakthrough in the attitudes that viewed space travel as pure science fiction as opposed to a practical reality, and so it should have been with TQM in the NHS. However, the attitude of many NHS managers was that TQM was all right for “other institutions” because “they need it” whereas in the NHS, “we don’t”. This negative attitude should have been overcome if TQM was to be accepted as a corporate, all encompassing philosophy. Research limitations/implications – The limitation of the research may be the sample size of the respondents, which was limited to 23 quality managers that had hands-on experience and the leadership role to lead and implement TQM in the NHS. Future research may consider a broader sample size. It may also be considered for new research to use surveys to identify a broader set of reasons why TQM declined in the NHS. Practical implications – This paper is the first constructive insight to determine reasons for the decline of TQM in the NHS from the individuals who had the sole responsibility for implementation. Any other, group would have amounted to hearsay. Therefore, to constructively delineate the reasons for failure, it was pertinent to learn from the quality managers directly and to ensure that the reasons was representative of their experiences with TQM. The practical implication is to prepare future managers about how to avoid failure. Originality/value – The paper clearly suggests the systematic process required for effective implementation of TQM in a healthcare setting by identifying factors that must be avoided to ensure the successful and sustainable implementation of TQM.

Knowledge management: does gender matter? A systematic review of literature

2020 ◽  
Vol 24 (6) ◽  
pp. 1315-1342
Author(s):  
Peter Heisig ◽  
Selvi Kannan
Keyword(s):  
Knowledge Management ◽  
Literature Review ◽  
Conceptual Framework ◽  
Systematic Literature Review ◽  
Practical Implication ◽  
Research Literature ◽  
Future Research ◽  
Content Type ◽  
And Gender

Purpose This paper aims to review for the first time existing research literature about the role of gender in creating, sharing and using knowledge in organizations and proposes a conceptual framework to guide future research directions. Design/methodology/approach Based on the systematic literature review method this study collects, synthesizes and analyses articles related to knowledge management (KM) and gender published in online databases by following a pre-defined review protocol. The paper analyses 41 papers published in peer-reviewed journals. Findings The role of gender in KM has been rarely addressed in KM journals and journals with specific emphasis on gender. The existing literature is fragmented, but existing research suggests that knowledge sharing might be influenced by gender. Based on the analysis and synthesis, a conceptual framework is proposed to guide further research on determining if gender matters in KM. Research limitations/implications Academic researchers should aim to include gender-related variables into their KM research to further explore if gender matters in KM. Practical implications The practical implication suggests that managers and knowledge managers should raise awareness about how stereotypes and gendered expectations about role behaviour affect how knowledge and experiences are created and shared within the organization. Social implications The authors believe that a better understanding of knowledge handling and gendered role expectations at the workplace could also have an impact beyond organizational boundaries. Originality/value The paper presents the first comprehensive systematic literature review of the article published on knowledge creation, sharing and usage and gender and provides a conceptual framework for future research.

Performance management to enhance employee engagement for corporate sustainability

2016 ◽  
Vol 8 (1) ◽  
pp. 84-102 ◽  
Author(s):  
Molraudee Saratun
Keyword(s):  
Performance Management ◽  
Employee Engagement ◽  
Practical Implication ◽  
Corporate Sustainability ◽  
Performance Outcomes ◽  
Future Research ◽  
Content Type ◽  
Psychological Conditions ◽  
Contextual Elements ◽  
And Performance

Purpose – The purpose of this paper is to examine literature in order to explore the reasons why performance management (PM) positively affects employee engagement (EE) as well as how PM should be conducted to achieve EE. It also provides future research suggestions. Design/methodology/approach – Derived from substantial literature review, approaches describing how three PM processes (performance agreement, on-going feedback, and performance evaluation) can enhance EE are discussed. Findings – Throughout the three PM processes, the following should be applied to foster EE: employee development facilitation and support, employee involvement, trust, and justice. In order to have a PM system achieve EE, the broad context and culture of organizations may have to change to be sustainability oriented. Research limitations/implications – Future research can test possible associations between a set of integrated PM activities and Kahn’s (1990) concept of three psychological conditions (meaningfulness, availability, and safety), leading to EE, and eventually sustainable corporate performance outcomes. Research examining associations between particular preceding sustainable contextual elements and PM, leading to engagement, also deserves attention. Practical implications – One practical implication of this paper is that it may provide possible guidance to managers seeking to engage their employees when managing their performance, and increase awareness of potential constraints created by non-sustainable contextual elements. Originality/value – This paper fulfills a need to explore how PM can be conducted to achieve EE, which is still scarce in current literature and research. The paper offers a holistic perspective that sustainable contexts in organizations are also needed, if PM to engage employees will flourish.

scholarly journals The role of unlearning in metamorphosis and strategic resilience

2017 ◽  
Vol 24 (2) ◽  
pp. 93-106 ◽  
Author(s):  
Marta Morais-Storz ◽  
Nhien Nguyen
Keyword(s):  
Organizational Behavior ◽  
Early Warning ◽  
Mission Statement ◽  
Practical Implication ◽  
Problem Formulation ◽  
Warning Signs ◽  
Future Research ◽  
Content Type ◽  
Early Warning Signs

Purpose This paper aims to conceptualize what it means to be resilient in the face of our current reality of indisputable turbulence and uncertainty, suggest that continual metamorphosis is key to resilience, demonstrate the role of unlearning in that metamorphosis and suggest that problem formulation is a key deliberate mechanism of driving continual cycles of learning and unlearning. Design/methodology/approach The paper entails a conceptual analysis. Findings It is found that both the unlearning and resilience literature streams are stuck in a paradigm whereby organizational behavior entails adaptation to the external environment and reaction to crisis. This paper suggests that, given a world of turbulence and uncertainty, a more useful paradigm is one where organizations take action before action is desperately needed, and that they proactively contribute to enacting their environment via their own continual metamorphosis. Research limitations/implications Future research should explore further the factors that can facilitate sensing the early warning signs, and facilitate the cyclical learning–unlearning process of metamorphosis. Practical implications The primary practical implication is that to ensure strategic resilience, managers must be able to identify early warning signs and initiate metamorphosis. This means understanding the processes needed to support unlearning, namely, problem formulation. Originality/value The originality and value of the present paper lies in that it suggests a shift in paradigm from adaptation and reaction, to action and enactment. Further, it proposes a cyclical process of learning and unlearning that together define periods of metamorphosis, and suggests problem formulation, whereby the mission statement is assessed and revised, as a mechanism in that endeavor.

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