Search results

1 – 7 of 7
Article
Publication date: 27 September 2018

Recep Eren, Ozge Celik, Fatih Suvari and Seyit Ali Koksal

Sectional warping is the most widely used warp preparation process in weaving. Winding all warp sections with the same length and same tension is a key factor for a good quality…

Abstract

Purpose

Sectional warping is the most widely used warp preparation process in weaving. Winding all warp sections with the same length and same tension is a key factor for a good quality warp preparation. It is required that winding thickness (increase in radius due to warp winding) remains the same within and between warp sections. The purpose of this paper is to investigate winding thickness variations within and between warp sections, which can lead to quality problems in woven fabrics.

Design/methodology/approach

A measurement system is developed and then an experimental investigation into winding thickness variations is carried out. Winding thickness is measured with respect to number of drum revolutions using a laser sensor with 20 microns resolution. The number of drum revolutions and drum angular position are measured by an incremental encoder. Both sensors are mounted on an industrial sectional warping machine. A real-time software written in C programming language collects and records the data for all sections of warp with respect to drum number of revolutions and then results are evaluated to determine winding thickness variations.

Findings

Results show that warp sheet thickness starts with a higher value and it decreases up to around 30 drum revolutions and then it remains constant or decreases very slightly which can be considered as insignificant from practical point of view. Warp sheet thickness (i.e. thickness of one warp layer) fluctuates within each section up to 10 percent CV with five drum revolutions average warp sheet thickness. There are also warp sheet thickness variations between warp sections up to 3 mm.

Originality/value

Considering the short of practical research results on winding thickness variations in the literature, results of this study will be an original contribution to understanding winding thickness variation level. Also, results presented in this paper can be used to develop control algorithms for thickness control in sectional warping machines.

Details

International Journal of Clothing Science and Technology, vol. 30 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 18 June 2019

Ozge Celik and Recep Eren

Yarns of different types are unwound from bobbins in different processes like warping, weaving, doubling and re-winding. It is required that yarn tension remains constant during…

Abstract

Purpose

Yarns of different types are unwound from bobbins in different processes like warping, weaving, doubling and re-winding. It is required that yarn tension remains constant during unwinding in all these processes. Otherwise, it ends with product quality and process efficiency problems. The purpose of this paper is to investigate experimentally the effect of balloon length on yarn tension change with respect to bobbin diameter during unwinding in an attempt to obtain a minimum yarn tension variation.

Design/methodology/approach

An experimental set up was built. Bobbin diameter was measured by a laser sensor and yarn tension was measured by a single yarn tension sensor. Both sensor outputs were interfaced to a PC via a DAQ cad. A software program was developed in C programming language to read and record the tension and bobbin diameter simultaneously. Experimental study was conducted with three different balloon lengths for both continuous filament and spun yarns of four different yarn numbers and five different unwinding speeds.

Findings

Results showed that yarn tension change with bobbin diameter was affected in different ways with balloon length depending on yarn number, unwinding speed and yarn type.

Originality/value

Available literature on the effect of balloon length on yarn tension bobbin diameter relation is limited and measurements were generally conducted for three different bobbin diameters. Yarn tension bobbin diameter relation is obtained in this research for at least eight different diameters and more for three different balloon lengths covering practical application ranges. The results obtained can be used in the design of tension control system for warping and winding machines as well as for setting these machines for optimum efficiency.

Details

International Journal of Clothing Science and Technology, vol. 31 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Content available
Book part
Publication date: 26 November 2020

Abstract

Details

Managing Customer Experiences in an Omnichannel World: Melody of Online and Offline Environments in the Customer Journey
Type: Book
ISBN: 978-1-80043-389-2

Article
Publication date: 14 November 2008

George K. Stylios

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

1271

Abstract

Examines the fourteenth 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. 20 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Book part
Publication date: 26 November 2020

Taşkın Dirsehan and Meltem Çelik Dirsehan

In recent years, with the development of technology, the number of contact points between companies and their customers has multiplied. From the company point of view, companies…

Abstract

In recent years, with the development of technology, the number of contact points between companies and their customers has multiplied. From the company point of view, companies may reach their customers through multiple marketing channels. Moreover, business intelligence necessitates increasing data sources, strengthening the power of analysis tools, and developing knowledge to be used as a competitive advantage. On the other hand, today’s mostly digitized customers expect more than just commoditized products or services. Customer activation creates experiences that make them feel strong as agents perpetrating the structure (brand strategies) by taking an active role instead of being passive. In other terms, customers are in the main decision position to plan the structure. Thus, companies should design unique and memorable customer experiences through different channels in an integrated way, which is called omnichannel. Omnichannel customer experience management is possible by determining and coordinating customer touch points. In other terms, a melody should exist at these interaction points. This book aims to contribute to this advancement by first providing general reviews of the literature, then covering the pillars to design omnichannel customer experiences, and lastly providing technology-enhanced applications from several industries. This book aims also to provide fresh conceptual insights and thinking about the ways to design and develop omnichannel customer experiences.

Details

Managing Customer Experiences in an Omnichannel World: Melody of Online and Offline Environments in the Customer Journey
Type: Book
ISBN: 978-1-80043-389-2

Keywords

Book part
Publication date: 28 November 2017

Aylin Akpınar

Gender analysis of the narratives of low-income divorcées in big cities of Ankara, Istanbul and Izmir shows that their lives are under patriarchal domination. Women are subjected…

Abstract

Gender analysis of the narratives of low-income divorcées in big cities of Ankara, Istanbul and Izmir shows that their lives are under patriarchal domination. Women are subjected to all kinds of violence in their marriage and escape it by getting a divorce. Their lives are vulnerable as the increasing numbers of lone mothers are neither morally nor socially accepted in Turkish society. The patriarchal family ideal exacerbates the situation of lone mothers who become stigmatized as divorcées. Divorce is considered a ‘shame’ for women, and the ideology of family is used as a political tool where persistent conservative bias ignores wife battering, rape and other types of abuse in society.

Details

Global Currents in Gender and Feminisms
Type: Book
ISBN: 978-1-78714-484-2

Keywords

Book part
Publication date: 26 July 2023

Neslihan Onder-Ozdemir

This longitudinal study reports on the development of an integrative curriculum for Medical English courses, which arose as a need on March 11, 2020, when the World Health…

Abstract

This longitudinal study reports on the development of an integrative curriculum for Medical English courses, which arose as a need on March 11, 2020, when the World Health Organization (WHO) made the assessment that COVID-19 was characterized as a pandemic and its effects became apparent on nursing students in the Department of Nursing at a State University in Turkey. The curriculum was designed using content and language-integrated learning (CLIL) by the ESP practitioner after observing the nursing students’ unexpected reactions to the onset of COVID-19 because of the unfiltered information about COVID-19, as Chiolero (2020) concisely described, “unprecedented in human history” (p. 1). Curriculum development included four stages in this study: preparation, curriculum design, implementation and evaluation. Data were collected using observation of the nursing students and self-reflective reports through triangulation of time and methods and analyzed using thematic analysis. The salient themes in the data analysis included increased awareness, increased confidence, contribution to professional development, the positive effect on mood and feelings, critical thinking, note-taking (because of new scientific information and new term), and ESP practitioner’s positive effects on students (n = 59).

1 – 7 of 7