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Article
Publication date: 1 November 2011

O.L. Shanmugasundaram and R.V. Mahendra Gowda

Absorbent disposable products, such as diapers and sanitary napkins, are mostly one-time use items and designed to absorb and retain body fluids and solid waste. The…

Abstract

Absorbent disposable products, such as diapers and sanitary napkins, are mostly one-time use items and designed to absorb and retain body fluids and solid waste. The present research work deals with the development and characterization of baby diapers made from four different fibrous compositions namely, pure bamboo, pure cotton, bamboo/cotton (70/30) and bamboo/cotton (50/50). Antibacterial activity tests have been carried out on baby diapers against S.aureus and E.coli. The strongest antibacterial activity in terms of reduction of the organism is found in diapers produced from pure bamboo fibre and the weakest antibacterial activity is found in cotton diapers. Superabsorbent polymer (SAP), namely, sodium polyacrylate is incorporated into the diapers to enhance their absorption capacity. The diapers are subjected to tests such as absorption capacity, liquid strike-through, acquisition time under load and diaper rewet under load to study their performance. Upon an analysis of the results, it is found that the performance of diapers produced from a bamboo/cotton (70/30) fibre blend is superior in comparison to the other ones.

Details

Research Journal of Textile and Apparel, vol. 15 no. 4
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 May 2008

R.V. Mahendra Gowda and S. Mohanraj

Textile technologists have already recognized the role of fibre friction in various textile processes. Attempts have been made to develop a novel instrument system to…

Abstract

Textile technologists have already recognized the role of fibre friction in various textile processes. Attempts have been made to develop a novel instrument system to quantify fibre friction and relate it with fibre processing, yarn quality and ultimately, the fabric handle. In this context, the current paper presents research work carried out in designing and developing a novel system to measure friction in various textile fibre assemblies. The paper discusses the novel features of the Computer Aided Friction Tester, designed and developed exclusively for characterising friction in fibres, sheets of yarn, fabrics, nonwovens, polymeric films, composites and other technical textiles. It also provides the highlights of frictional characteristics measured in various textile fibre assemblies and the reasons for their occurrences.

Details

Research Journal of Textile and Apparel, vol. 12 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 October 2021

Esra Zeynep Yıldız and Oktay Pamuk

The conversion of fabric into a garment involves many interactions such as the selection of suitable sewing thread, optimization of sewing parameters, ease of conversion…

Abstract

Purpose

The conversion of fabric into a garment involves many interactions such as the selection of suitable sewing thread, optimization of sewing parameters, ease of conversion of fabric into the garment and actual performance of the sewn fabric during wear of the garment. The adjustment of all sewing parameters is necessary to ensure quality. The purpose of this paper is to define the parameters that affect seam quality comprehensively.

Design/methodology/approach

This study primarily focuses on the studies dealing with the effect of various parameters on-seam quality in detail. A systematic literature review was conducted.

Findings

The interactions between parameters may lead to different results than the effect of a single parameter. In addition, changing some parameters may have a positive effect on one element of seam quality while having a negative effect on another. For this reason, it is very important to properly select the parameters according to the specific end use of the garment products and also to consider the interactions.

Originality/value

The knowledge of various factors that affect seam quality will be helpful for manufacturers to improve production performance and to be able to produce high-quality seam.

Details

Research Journal of Textile and Apparel, vol. 25 no. 4
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 August 2016

Iwona Frydrych and Agnieszka Greszta

Seam efficiency plays an important role for obtaining a desired seam quality. Therefore, this issue is often referred in research papers. The purpose of this paper is to…

Abstract

Purpose

Seam efficiency plays an important role for obtaining a desired seam quality. Therefore, this issue is often referred in research papers. The purpose of this paper is to determine the seam strength and efficiency as well as examining, if and how such factors as: a kind of fabric, kind of thread, kind of seam and the stitch density influence the transverse seam strength and the seam efficiency.

Design/methodology/approach

For research four types of polyester/wool fabrics having different structural parameters and two types of polyester sewing threads were used. Three types of seam were made. The fabric samples were sewn using lockstitch with three different stitch densities. Obtained in this way seams were tested on the tensile machine. The influence of individual factors on the seam strength and its efficiency was assessed statistically using a multivariate variance analysis (ANOVA).

Findings

The findings of this study revealed that the independent variable – stitch density affect significantly of the seam strength as well as its efficiency. Seam strength and seam efficiency values increase with the increase stitch density. Moreover, the variance analysis showed that a kind of fabric also is a statistically significant factor for the seam efficiency and its strength. Furthermore, in the case of seam efficiency it is also important to the stitch direction. However, the study did not show an impact of kind of thread and kind of seam on dependent variables: the seam strength and its efficiency.

Research limitations/implications

Due to the fact that this paper focuses on the seams made only on wool/polyester fabrics with two the most popular weaves, involving only two sewing PES threads, the conclusions presented in this paper are valid only to this assortment and cannot be generalized.

Originality/value

So far, it has not been taken research on the effect of seams with the different number of sewn layers on the seam strength and efficiency. This issue has been taken in this work.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 8 May 2018

Awadhesh Kumar Choudhary, Monica Puri Sikka and Payal Bansal

The purpose of this review paper is to define the dominating factors (such as fiber, yarn, fabric structure, sewing thread, sewing needle and machine parameters) that…

Abstract

Purpose

The purpose of this review paper is to define the dominating factors (such as fiber, yarn, fabric structure, sewing thread, sewing needle and machine parameters) that affect the seam damages and causing defects. It also describes the various explanations of sewing defects in garment production and critically analyzes them for optimum selection of parameters and speeds for minimizing such faults. Hence, the knowledge of various factors which affect the sewing damages/defects will be helpful for garment manufacturers/researchers to know influence of the parameters and control the quality of producing seam.

Design/methodology/approach

This section is not applicable for a review paper.

Findings

Sewing damages such as needle cut and other sewing damages/defects are studied mostly in woven fabric. There are very few studies conducted on knitted fabric sewing damages/defects. The sewing damage problems do not have single solution that is capable of removing these damages in fabric. All the determined and affecting parameters related to fiber, yarn, fabric construction, sewing thread and sewing machine must be examined to design appropriate remedial measurement related to machine design, fabric parameters and sewing thread. This could help in minimizing or eliminating the needle cut and other sewing damage problems.

Originality/value

It is an original review work and is helpful for garment manufacturers/researchers to reduce the defects and be able to produce good quality seam.

Details

Research Journal of Textile and Apparel, vol. 22 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 23 September 2021

Najiyah Safwa Khashi'ie, Iskandar Waini, Syazwani Mohd Zokri, Abdul Rahman Mohd Kasim, Norihan Md Arifin and Ioan Pop

This paper aims to accentuate the behavior of second-grade hybrid Al2O3–Cu nanofluid flow and its thermal characteristics driven by a stretching/shrinking Riga plate.

Abstract

Purpose

This paper aims to accentuate the behavior of second-grade hybrid Al2O3–Cu nanofluid flow and its thermal characteristics driven by a stretching/shrinking Riga plate.

Design/methodology/approach

The second-grade fluid is considered with the combination of Cu and Al2O3 nanoparticles. Three base fluids namely water, ethylene glycol (EG) and methanol with different Prandtl number are also examined. The formulation of the mathematical model of second-grade hybrid nanofluid complies with the boundary layer approximations. The complexity of the governing model is reduced into a simpler differential equations using the similarity transformation. The bvp4c solver is fully used to solve the reduced equations. The observation of multiple solutions is conducted for the assisting (stretching) and opposing (shrinking) cases.

Findings

The impact of suction parameter, second-grade parameter, electromagnetohydrodynamics (EMHD) parameter, velocity ratio parameter and the volumetric concentration of the alumina and copper nanoparticles are numerically analyzed on the velocity and temperature profiles, skin friction coefficient and local Nusselt number (thermal rate) of the second-grade Al2O3–Cu/water. The solution is unique when (static and stretching cases) while dual for a specific range of negative in the presence of suction effect. Based on the appearance of the first solution in all cases of, it is physically showed that the first solution is stable. Further examination reveals that the EMHD and suction parameters are the contributing factors for the thermal enhancement of this non-Newtonian working fluid. Meanwhile, the viscosity of the non-Newtonian fluid also plays a significant role in the fluid motion and heat transfer rate based on the finding that the EG base fluid produces the maximum heat transfer rate but the lowest critical value and skin friction coefficient.

Originality/value

The results are novel and contribute to the discovery of the hybrid nanoparticles’ performance in the non-Newtonian second-grade fluid. Besides, this study is beneficial to the researchers in this field and general audience from industries regarding the factors, which contributing to the thermal enhancement of the working fluid.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 32 no. 7
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 18 October 2018

Ria Christine Siagian and Jorge Emilio Osorio

The purpose of this paper is to identify, analyze and describe the novel approaches that affect vaccine development in lower-middle income countries (LMICs).

Abstract

Purpose

The purpose of this paper is to identify, analyze and describe the novel approaches that affect vaccine development in lower-middle income countries (LMICs).

Design/methodology/approach

The vaccine market in LMICs currently focuses on traditional Expanded Program for Immunization vaccines instead of new ones. Unlike the successful introduction of those traditional vaccines, the introduction of new vaccines appears to be very slow, mainly due to financial issues. This paper systematically reviews a set of published papers on vaccine development and analyzes them against a specific region-setting framework.

Findings

Public–private partnership alone could not ensure long-term vaccine sustainability. Several factors that encourage domestic vaccine development were identified. The findings demonstrate that the regulatory approach of hybrid collaboration and market opportunity strategies can be a major breakthrough for domestic vaccine development in LMICs.

Research limitations/implications

Further research is required to include qualitative and quantitative methods for policy analysis, as all of the discussion in this research focused on literature reviews. The authors did not discuss how strategic decisions are affected from a political perspective and this needs to be specified in future research. Think tanks, considerably and fundamentally, affect policy ideas and decisions. However, important breakthroughs continue to be made at the same time.

Social implications

The development of vaccines in LMICs is expected to be a mechanism to overcome the inadequate access to vaccines in those countries, as solving this problem requires tackling issues from both the supply and demand sides.

Originality/value

This is a literature review that creates recommendation and approaches for domestic vaccine development in LMICs. This review aims to encourage LMICs to produce their own vaccines for sustainability of the vaccine access through vaccine development lifecycle, instead of expecting donor that provides funding and vaccines (vaccine access) in certain period of time. Donor is not always the solution for the problem, since vaccine development requires finance to function infrastructure. There are many efforts in revoking this, including World Health Organization through several reports; however, this effort still has many doubts. Therefore, the article would like to try to see this as a viable solution from the policy perspectives, with several examples to make recommendations more practical.

Details

International Journal of Health Governance, vol. 23 no. 4
Type: Research Article
ISSN: 2059-4631

Keywords

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