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Article
Publication date: 19 May 2020

Edison Omollo Oduor, Lucy Wanjiru Ciera, Vijay Adolkar and Odoch Pido

This paper aims to determine the best conventional degumming technique for use by rural farmers practicing Eri silk fiber production in Kenya.

Abstract

Purpose

This paper aims to determine the best conventional degumming technique for use by rural farmers practicing Eri silk fiber production in Kenya.

Design/methodology/approach

Three conventional silk degumming methods (water, soap and alkali) were analyzed under the factors, namely, time, pressure and degumming media, following the multilevel factorial design of experiments. The effect of variables on degumming weight loss was determined. The effects of the conventional degumming methods that produced complete sericin removal on chemical structure, surface morphology, thermal properties, crystallinity and fiber strength on Eri silk fibers produced in Kenya were then determined. The optimal degumming condition was then evaluated.

Findings

Soap and water degumming led to incomplete sericin removal. Alkali degumming media had the most effect, especially when pressure cooked at 103 kPa. Increasing time during alkali degumming beyond 30 min did not to have any major difference on degumming loss (at p 0.05). There were no major changes in chemical and thermal properties after degumming. However, the tensile strength and elongation deteriorated especially on alkali medium. Decreasing degumming time in alkali medium from 120 min to 30 min reduced the strength loss from 45% to 33%. Optimal degumming was found to be in an alkali media at 103 kPa for 30 min.

Originality/value

There is very little information available on Eri silk fibers produced in Kenya. Results of this study provide an optimized conventional degumming procedure suitable for small scale farmers in rural areas practicing Eri silk fiber production.

Details

Research Journal of Textile and Apparel, vol. 24 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 2 September 2022

Senthil Kumar B., Anita Rachel D. and Sentil Kumar C.B.

Eri silk fiber has superior thermal insulation behavior, better softness than cotton fiber. However, Eri silk’s use in the commercial arena has not yet taken off. The purpose of…

Abstract

Purpose

Eri silk fiber has superior thermal insulation behavior, better softness than cotton fiber. However, Eri silk’s use in the commercial arena has not yet taken off. The purpose of the study is to explore the comfort properties of the fabric, which enhances the commercial acceptance of Eri silk clothing.

Design/methodology/approach

In this investigation, three different single knit Eri silk structures were produced with different loop lengths and yarn counts to analyze the influence of process variables on low-stress mechanical properties. To execute the research work, Eri silk spun yarn of three different linear densities (15 tex, 20 tex, 25 tex) were chosen. Three different knitted structures were produced, such as single jersey, popcorn and cellular blister, and two different loop lengths were also selected.

Findings

The cellular blister structure has shown appreciable low-stress properties next highest position was attained by the popcorn structure. Yarn fineness and loop length were significant with most of the low-stress properties.

Research limitations/implications

The findings of this research will contribute to a greater awareness of Eri silk knitted fabric and its process parameters in relation to its commercial utility.

Originality/value

This study was conducted to explore the influence of knit structure, loop length and yarn count on the low-stress properties of Eri silk-based thermal clothing.

Details

Research Journal of Textile and Apparel, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 28 March 2023

Gopalakrishnan Palaniappan, Anita Rachel D., Sentilkumar C.B., Selvaraj Senthil Kumar, Senthil Kumar B. and Devaki E.

Eri is a short-stapled fibre that possesses an excellent soft feel and warmness to the wearer. Investigation of thermal comfort and moisture properties of Eri silk fabric provides…

Abstract

Purpose

Eri is a short-stapled fibre that possesses an excellent soft feel and warmness to the wearer. Investigation of thermal comfort and moisture properties of Eri silk fabric provides the enhanced commercial scope for Eri silk-based clothing.

Design/methodology/approach

To examine the impact of process factors on thermal and moisture properties, three different single knit Eri silk structures were made, each with a different loop length and yarn count. Three different linear densities of Eri silk spun yarn (15, 20 and 25 tex) were selected. Three distinct knitted constructions, including plain jersey, popcorn and cellular blister, were created, along with two different loop lengths.

Findings

The novel cellular blister structure has shown appreciable thermal comfort properties than the other two structures. Yarn fineness and loop length were significant with most of the thermal comfort properties.

Research limitations/implications

In recent times the Eri silk production is completely domesticated, so the new demand can easily be met by the producers. This research will create a new scope for Eri silk fibres in sportswear and leisure wear.

Originality/value

This study was conducted to explore the influence of knit structure, loop length and yarn count on the thermal comfort properties of the clothing.

Details

Research Journal of Textile and Apparel, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 May 2007

Murugesh Babu K and Kushal Sen

Silk is a natural protein fibre. It is the only natural fibre available in continuous filament form. Earlier research studies on physical structure and mechanical properties of…

Abstract

Silk is a natural protein fibre. It is the only natural fibre available in continuous filament form. Earlier research studies on physical structure and mechanical properties of silk have indicated that the physical and chemical architecture varies between different varieties of silk and a substantial variation of these properties was observed within the cocoon. The amino acid composition and even the dyeing behaviour are different in different silk. Silk is considered as a non-thermoplastic fibre and is generally not expected to undergo significant morphological changes as a result of thermal shrinkage like synthetic fibres, viz., polyester and nylon. Needless to mention, silk fibres do undergo several kinds of heat treatments either in dry or wet state in the course of textile processing. Hence, an attempt has been made in this paper to deal with the response of different silk varieties (mulberry and non-mulberry) to thermal inputs. Five varieties of silk, two mulberry (bivoltine and crossbreed) and three non-mulberry (tasar, muga and eri) were subject to thermal treatments using TGA and DTA techniques. It was found that both mulberry and non-mulberry varieties behave differently to thermal inputs. Non-mulberry varieties show lower weight loss of 35-37% at 400oC as compared to about 41- 44% for mulberry varieties. They also exhibit a higher decomposition temperature. Interestingly, an additional transition at around 290°C is clearly observed with all the nonmulberry silks. The DTA results indicate higher stability of non-mulberry silks towards thermal treatments.

Details

Research Journal of Textile and Apparel, vol. 11 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 28 February 2023

Chaitali Brahma, Bhaskar Saha and Anirban Chowdhury

The purpose of this study is to understand the perception of the local weavers amongst the Bodos, a tribe of the North-east (NE) India. Towards this a concept of a service…

Abstract

Purpose

The purpose of this study is to understand the perception of the local weavers amongst the Bodos, a tribe of the North-east (NE) India. Towards this a concept of a service pipeline process in the field of heritage attire preservation of Bodo Dokhona was focused that would endorse the local weavers' community for its wellbeing and sustainability.

Design/methodology/approach

The design approaches have been framed after interactions with the local weavers through a survey conducted for understanding the issues pertaining to weavers. Towards sustaining the Bodo heritage attire Dokhona, a service design pipeline for better management system was developed in three phases. Interactions with the local weavers through survey and validation for its feasibility were undertaken.

Findings

This research paper focuses on publishing innovative survey research and practice related to cultural heritage management of the Bodo traditional wear Dokhona and sustainability conservation of the pipeline process. Therefore, developing both skill and knowledge for the weavers' community of the region.

Social implications

The design pipeline approach in this paper has been shared with the local weavers' for easy understanding of the step-by-step process of weaving a Dokhona made of eri silk. A progressive Bodo weaver will gain skill training which would lead to weavers' empowerment.

Originality/value

Developing and documenting an innovative service design approach. In this context, an insight for women empowerment leading to preservation of Bodo heritage is valued.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2044-1266

Keywords

Article
Publication date: 21 April 2023

Uyen Nguyen Tu Tran, Hung Ngoc Phan, Thao Thanh Hoang, Nu Thi Hong Le and Huong Mai Bui

The textile industry has consumed large quantities of water and discharged large volumes of wastewater in the dyeing process. The study aims to characterize self-dyed silk with…

Abstract

Purpose

The textile industry has consumed large quantities of water and discharged large volumes of wastewater in the dyeing process. The study aims to characterize self-dyed silk with Rhodamine B (RhB) for fashion applications to reduce textile hazards to the environment and increase the added value of silk.

Design/methodology/approach

Bombyx mori was fed with RhB-colored mulberry leaves (1500 ppm). The effects of self-dyeing were investigated via color strength K/S, Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscope, X-ray diffraction, tensile strength, color fastness to washing, rubbing, perspiration and light.

Findings

Self-dyed silk possesses effective coloration and impressive color fastness (4–5/5), higher crystalline index (CrI) (73.26 ± 2.28%), less thermal stability and tenacity, slight change in amino acid composition compared with the pristine and no existence of harmful aromatic azo amines and arylamine salts.

Practical implications

The application of self-dyed silk with RhB dye has expanded new technology into fashion industry, contributing partly to economic growth and adding value to silk in the global supply chain. Besides, the self-dyeing will yield practical values in the reduction of dyeing discharge in textile industry.

Originality/value

Self-dyed silk was characterized for textile applications in comparison with pristine silk in terms of color strength and fastness as well as determined its polymeric properties relating to crystallinity, morphology, chemical composition, tensile properties and thermal stability which have not been investigated before.

Details

International Journal of Clothing Science and Technology, vol. 35 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Case study
Publication date: 15 November 2022

Rozita Ghaffari Fard, Vijayta Fulzele and Jitender Kumar

The purpose of this case is to expose readers to the dilemma of expanding domestically or internationally and simultaneously taking key decisions while expanding the business to…

Abstract

Learning outcomes

The purpose of this case is to expose readers to the dilemma of expanding domestically or internationally and simultaneously taking key decisions while expanding the business to the international markets. It could be a foundational case for understanding international expansion and growth strategies.

After the case analysis, students would be able to:

• understand the potential of the domestic market and the factors affecting the international expansion;

• evaluate the various methods to enter an international market;

• identify the challenges of expanding a business into emerging markets such as India;

• analyze the various growth and expansion strategies in an emerging market such as India; and

• assess the online promotion strategies in an emerging market.

Case overview/synopsis

NIVA, The Satin Collection, is a manufacturer and distributor of a luxury collection of silk and satin products. Founded in 2020, NIVA is based in Dubai with more than 1,000 customers. The products include silk bedding, silk sleepwear, fashion accessories and reusable satin masks, and they are made-to-order, custom-made and tailored locally in Dubai. Currently, all the operations are run and managed by the company’s founder, Purva. The only operation which is outsourced is the stitching process. The company is completely operating online and is currently promoting products only through social media platforms such as Instagram and Facebook.

Purva is planning to expand her business. The two options are extending her existing operations in the UAE and expanding to other emerging markets, starting with India. Purva needs to decide on a suitable internationalization strategy to decide whether it is the right decision to enter the Indian market, including an entry and promotion strategy in her target market. In addition, she needs to decide whether to continue with NIVA’s current business model in India. There might also be additional possible challenges for NIVA in entering the Indian market.

Complexity academic level

Postgraduate MBA students, other graduate-level management programs and undergraduate-level students.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS 5: International Business.

Details

Emerald Emerging Markets Case Studies, vol. 12 no. 4
Type: Case Study
ISSN:

Keywords

Article
Publication date: 1 June 2000

George K. Chako

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in…

7259

Abstract

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in their efforts to develop and market new products. Looks at the issues from different strategic levels such as corporate, international, military and economic. Presents 31 case studies, including the success of Japan in microchips to the failure of Xerox to sell its invention of the Alto personal computer 3 years before Apple: from the success in DNA and Superconductor research to the success of Sunbeam in inventing and marketing food processors: and from the daring invention and production of atomic energy for survival to the successes of sewing machine inventor Howe in co‐operating on patents to compete in markets. Includes 306 questions and answers in order to qualify concepts introduced.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 12 no. 2/3
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 7 March 2022

Geetha Margret Soundri, Kavitha S. and Senthil Kumar B.

The essential properties of active sports fabrics are moisture management, quick-drying, body heat management and thermal regulations. Fibre type, blending nature, yarn and fabric…

Abstract

Purpose

The essential properties of active sports fabrics are moisture management, quick-drying, body heat management and thermal regulations. Fibre type, blending nature, yarn and fabric structure and the finishing treatment are the key parameters that influenced the performance of the clothing meant for sportswear. This study aims to investigate the effect of fibre blending and structural tightness factors on bi-layer sport fabric's dimensional, moisture management and thermal properties.

Design/methodology/approach

In this study, 12 different bi-layer inter-lock fabrics were produced. Polyester filament (120 Denier) yarn was fed to form the backside of the fabric, and the face side was varied with cotton, modal, wool and soya spun yarns of 30sNe. Three different types of structural tightness factors were considered, such as low, medium and high were taken for sample development. The assessment towards dimensional, moisture management and thermal properties was carried out on all the samples.

Findings

The polyester-modal blend with a high tightness factor has shown maximum overall moisture management capability (OMMC) values of 0.73 and air permeability of 205.3 cm3/cm2/s. The same sample has shown comparatively higher thermal conductivity of 61.72 × 10–3 W m-1 °C-1(Under compression state) and 58.45 × 10–3 W m-1 °C-1 (under recovery state). In the case of surface roughness is concerned, polyester-modal blends have shown the lowest surface roughness, surface roughness amplitude and surface friction co-efficient. Among the selected fibre combinations, the overall comfort level of polyester-modal bi-layer knitted structure with a higher tightness factor is appreciable. Polyester-modal is more suitable for active sportswear among the four fiber blend combinations.

Research limitations/implications

The outcome of this study will help to gain a better understanding of fibre blends, structural tightness factor and other process specifications for the development of bi-layer fabric for active sportswear applications. The dynamic functional testing methods (Moisture management and Thermal properties) were carried out to simulate the actual wearing environment of the sports clothing. This study will create a new scope of research opportunities in the field of bi-layer sports textiles.

Originality/value

This study was conducted to explore the influence of fibre blend and structural tightness factor on the comfort level of sportswear and to find the suitable fibre blend for active sportswear clothing.

Details

Research Journal of Textile and Apparel, vol. 27 no. 4
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 5 May 2023

Bijoy Kumar Dey, Ujjwal Kanti Paul and Gurudas Das

Although handloom is a significant source of livelihood for millions of people in India, it performs poorly compared to other sectors of the economy, which may be the root of…

Abstract

Purpose

Although handloom is a significant source of livelihood for millions of people in India, it performs poorly compared to other sectors of the economy, which may be the root of technical inefficiency. Until now, to measure technical efficiency, no studies have been carried out; therefore, the purpose of this study is to estimate the technical efficiency in the handloom micro-enterprises in India.

Design/methodology/approach

This study includes 427 handloom micro-entrepreneurs from the Indian state of Assam. Using bootstrap truncated regression, the data envelopment analysis (DEA) was used to calculate the technical efficiency and identify the factors responsible for inefficiency.

Findings

The findings of this study reveal that handloom enterprises are 75% pure technically efficient, suggesting room for input reduction. The bootstrap truncated regression results show that education, prior experience, modern technology, ICT, bank loan, training, gender and location significantly influence the technical efficiency of handloom enterprises.

Research limitations/implications

Despite recent advances in the DEA method, this study used a traditional form of DEA. This study used only one output and a limited set of inputs. Better results could have been obtained by expanding the number of inputs and output. Finally, the data for this study has been obtained from a very narrow geographic area. The production practices of the handloom enterprises in other parts of the region and other states might vary considerably.

Practical implications

Technical efficiency measurement has management implications for businesses because it allows entrepreneurs to determine how much less input is required to produce the same output. A meticulous analysis can pinpoint the causes of inefficiency.

Originality/value

This paper aims to make two significant contributions to the extant literature. First, to the best of the authors’ knowledge, no published document has analyzed the technical efficiency of handloom micro-enterprises anywhere in the world. The authors fill this void by systematically analyzing the technical efficiency of the handloom industry in Assam.

Details

Research Journal of Textile and Apparel, vol. 27 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

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