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Article
Publication date: 7 August 2019

Saira Faisal, Aurelio Tronci, Muhammad Ali, Erum Bashir and Long Lin

The purpose of this study was to optimise the dyeing conditions to achieve right-first-time dyeing in hard water. Owing to the persistent water scarcity for more than two decades…

Abstract

Purpose

The purpose of this study was to optimise the dyeing conditions to achieve right-first-time dyeing in hard water. Owing to the persistent water scarcity for more than two decades now, the textile industry in Pakistan is forced to rely on high-mineral-content ground water for use in textile wet processing. Furthermore, the limited amount of municipal water that is at the disposal of the textile industry is also high in mineral content. Thus, on the large scale, water hardness has become an acute problem for the textile processor. In particular, in the dyeing process, water hardness is known to have crucial effects. However, to-date, no systematic study has been conducted on this aspect of textile dyeing.

Design/methodology/approach

In this study, 32 full factorial design was used to optimise the dyeing conditions to achieve right-first-time dyeing in hard water. Thus, cotton fabric was dyed with Red Reactive dye (of dyebath concentration at 5, 10 and 15 g/L) in prepared hard water (of hardness at 10, 40 and 70°dH), respectively. Analysis of variance, coefficient of determination (R2) and p-values for the models were used to evaluate the adequacy of the predictive models. The surface plots of the effects were studied to further examine the interactions of two independent variables. Derringer’s desirability function was used to determine the optimum levels of each variable.

Findings

Three levels for both independent variables generate second-order polynomial models to predict the colour strength, lightness, red/green, yellow/blue and total colour difference values of dyed cotton. The obtained predictive models point out the considerable influence of both water hardness and dye concentration on right-first-time dyeing.

Originality/value

Such a finding enabled the dye-mill to produce the correct shade at water hardness of 10°dH and 15 g/L dye concentration, without the need for corrective reprocessing.

Details

Pigment & Resin Technology, vol. 48 no. 5
Type: Research Article
ISSN: 0369-9420

Keywords

Content available
Article
Publication date: 1 April 2004

434

Abstract

Details

Pigment & Resin Technology, vol. 33 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Content available
126

Abstract

Details

Pigment & Resin Technology, vol. 33 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 14 June 2022

Sheraz Hussain Siddique Hussain Yousfani, Salma Farooq, Quratulain Mohtashim and Hugh Gong

Porosity is one of the most important properties of the textile substrate. It can influence the comfort of a garment by affecting its breathability and thermal conductivity…

Abstract

Purpose

Porosity is one of the most important properties of the textile substrate. It can influence the comfort of a garment by affecting its breathability and thermal conductivity. During the process of dyeing, the dye liquor comes in contact with the substrate; the absorption of the dye liquor into the substrate will be dependent on its porosity. The concept of porosity between the yarns of fabric is a common phenomenon; however, the porosity between the fibres in the yarn can also influence the dyeing behaviour of the fabric.

Design/methodology/approach

In this research, ring and rotor yarns of 25/s and 30/s counts are considered as textile substrates. The porosity of yarns was determined theoretically and experimentally using the image analysis method.

Findings

It was found that theoretical porosity is independent of the yarn manufacturing method. In addition, 30/s yarn was more porous as compared with 25/s yarn having a higher pore area. Rotor yarns had higher porosity, dye fixation and K/S as compared with ring yarns. Dyeing behaviour was also dependent on the count of yarn. Specifically, 30/s yarns have higher dye fixation as compared with 25/s yarns. However, 25/s yarns were dyed with deeper shades showing higher K/S values. Also, 25/s yarns are coarser than 30/s yarns having higher diameters and cross-sectional area, thus resulting in deeper shades and higher K/S values.

Originality/value

This novel technique is based on the comparative study of the porosity of various types of yarns using the image analysis technique. This investigation shows that the porosity between the fibres in the yarn can also influence the dyeing behaviour of the yarn.

Details

Pigment & Resin Technology, vol. 52 no. 6
Type: Research Article
ISSN: 0369-9420

Keywords

Content available
Article
Publication date: 1 August 2005

105

Abstract

Details

Pigment & Resin Technology, vol. 34 no. 4
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 5 June 2017

Ruth Dede Adikorley, Lori Rothenberg and Aaron Guillory

The purpose of this study is to explore Lean Six Sigma (LSS) project and program success in the textile and apparel industry. This paper presents depictions of LSS implementations…

2462

Abstract

Purpose

The purpose of this study is to explore Lean Six Sigma (LSS) project and program success in the textile and apparel industry. This paper presents depictions of LSS implementations and the resulting economic impact for a textile company.

Design/methodology/approach

A qualitative approach consisting of a single descriptive case study and project document reviews was used. This method provided an in-depth view into what LSS means for one medium-sized global textile company and how it has proven important to the company’s success.

Findings

Three successful projects, two on changeover time reduction and one on metal contamination, were completed. Additional findings from this study suggest that strategic partnerships with other high-performing companies and storytelling are two critical success factors. Also, it is critical for management to convey a clear vision for LSS that can be operationalized within a company for successful deployment of LSS textile projects.

Research limitations/implications

The findings from this case study cannot be generalized.

Originality/value

The literature on LSS in small- and medium-sized businesses is limited. The literature on the use of LSS in the textile and apparel industry is even more limited. This paper shows various processes within the textile complex where LSS has been deployed successfully, yielding economic impacts. By using qualitative methods, the value of strategic partnerships, storytelling and a vision was seen.

Details

International Journal of Lean Six Sigma, vol. 8 no. 2
Type: Research Article
ISSN: 2040-4166

Keywords

Content available
Article
Publication date: 1 February 2004

143

Abstract

Details

Pigment & Resin Technology, vol. 33 no. 1
Type: Research Article
ISSN: 0369-9420

Abstract

Details

Pigment & Resin Technology, vol. 34 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 December 2005

George K. Stylios

Examines the eleventh published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects…

1024

Abstract

Examines the eleventh published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Details

International Journal of Clothing Science and Technology, vol. 17 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Content available
Article
Publication date: 1 July 2006

974

Abstract

Details

Pigment & Resin Technology, vol. 35 no. 4
Type: Research Article
ISSN: 0369-9420

Keywords

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