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Article
Publication date: 1 February 1992

M. Govindaraj, B. Chen and J. Koechling

Deals with the development of a control system for fabric pick‐and‐place operators based on the Clupicker device. Fabric mechanical properties are analysed for their…

Abstract

Deals with the development of a control system for fabric pick‐and‐place operators based on the Clupicker device. Fabric mechanical properties are analysed for their influence on the motions performed in picking up fabric pieces from a stack. The performance of the picking device on various woven fabrics has been studied. A stepping motor drive to the crank of the Clupicker enabled us to control the normal force applied by the picking wheel on the fabric stack. By controlling the normal force we could make the Clupicker perform well for fabrics with very different properties. A linear regression was found between the minimum normal force required for effective performance of the picker and bending rigidity of the fabric.

Details

International Journal of Clothing Science and Technology, vol. 4 no. 2/3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 5 September 2016

Vajiha Mozafary and Pedram Payvandy

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in…

Abstract

Purpose

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in process of fabric simulation in mass spring model are discussed and compared.

Design/methodology/approach

This paper reviews and compares presented mesh types in mass spring model, forces applied on model, super elastic effect and ways to settle the super elasticity problem, numerical integration methods for solving equations, collision detection and its response. Some of common methods in fabric simulation are compared to each other. And by using examples of fabric simulation, advantages and limitations of each technique are mentioned.

Findings

Mass spring method is a fast and flexible technique with high ability to simulate fabric behavior in real time with different environmental conditions. Mass spring model has more accuracy than geometrical models and also it is faster than other physical modeling.

Originality/value

In the edge of digital, fabric simulation technology has been considered into many fields. 3D fabric simulation is complex and its implementation requires knowledge in different fields such as textile engineering, computer engineering and mechanical engineering. Several methods have been presented for fabric simulation such as physical and geometrical models. Mass spring model, the typical physically based method, is one of the methods for fabric simulation which widely considered by researchers.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 February 2008

Qinguo Fan, Hongxia Xue and Yong K. Kim

Woven and knitted polyester fabrics were pretreated with formulations containing waterborne UV curable resins and silica particles to improve inkjet print quality. The…

Abstract

Woven and knitted polyester fabrics were pretreated with formulations containing waterborne UV curable resins and silica particles to improve inkjet print quality. The selected formulations were applied with low add-on to reduce the adverse effect on fabric hand without sacrificing the print quality. A print pattern with block areas and lines in cyan, magenta, yellow, and black colors was designed and inkjet printed on the pretreated fabrics with a wide-format inkjet printer (Encad Novajet 750) to investigate the effects of the UV curable pretreatment on the inkjet print color qualities including color depth, color gamut and color lightness.

Experimental results show that both the color depth and gamut of prints on the pretreated taffeta and knitted polyester fabrics were enhanced compared to those on untreated polyester fabrics. However, both the color depth and gamut of the prints on the pretreated satin polyester fabrics were reduced. The lightness change of the inkjet printed colors on pretreated knitted fabrics is similar to that of untreated fabrics whereas the lightness change of prints on pretreated satin and taffeta fabrics shows some differences. All colors have increased lightness on pretreated satin fabrics. However, magenta and black have decreased lightness on the pretreated taffeta fabrics.

Details

Research Journal of Textile and Apparel, vol. 12 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 April 1990

Shyanglin (Sam) Lee, Hsu‐Pin (Ben) Wang and Chao‐Hsien Chu

The main purpose of a Flexible Manufacturing System (FMS) issimultaneously to process parts with small to medium lot sizes and highvarieties. The rule despatching problem…

Abstract

The main purpose of a Flexible Manufacturing System (FMS) is simultaneously to process parts with small to medium lot sizes and high varieties. The rule despatching problem in a Flexible Manufacturing Cell (FMC) is examined using a simulation model. This is based on an algorithm for dynamically selecting the best despatching rule according to the current system status. Comparison between simulation runs with and without dynamic rule despatching shows that the proposed algorithm gives a better overall performance.

Details

International Journal of Operations & Production Management, vol. 10 no. 4
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 1 October 2002

V. Sidabraite and V. Masteikaite

Undesirable effect of asymmetric drape often occurs when cutting patterns of flared skirt on cross. Out of this reason garment seams twist toward the front or back or…

Abstract

Undesirable effect of asymmetric drape often occurs when cutting patterns of flared skirt on cross. Out of this reason garment seams twist toward the front or back or folds form different shapes on each side of the garment and this lowers garment aesthetic appearance. The new measuring procedure for asymmetric skirt drape near the side seam, based on bottom traces geometry, was developed in this paper. The experiment with four‐gored skirts of six lightweight fabrics was made. It was found that asymmetric drape depends on combination of grain lines directions of front and back panels of a skirt. There were made general conclusions relating skirt asymmetric drape with various fabric characteristics, such as bending rigidity, extensibility, shear rigidity, fabric weight and drape coefficient in this article. According to developed measuring procedure a final objective evaluation of skirt asymmetric drape rate will be done further.

Details

International Journal of Clothing Science and Technology, vol. 14 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 February 2001

D.X. Gong, B.K. Hinds and J. McCartney

The requirements in CAD modelling of garments are first considered and alternative user interfaces are considered. Features which occur in block patterns and for which…

Abstract

The requirements in CAD modelling of garments are first considered and alternative user interfaces are considered. Features which occur in block patterns and for which accurate simulation is required are identified. An energy based modeller, developed for drape simulation, is introduced and applied to model garment constructional details in fabric test specimens of variable stiffness. The modeller is further applied to garment pieces in contact with a mannequin to compare drape with and without constructional features.

Details

International Journal of Clothing Science and Technology, vol. 13 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 May 1998

C.H.M. Hardaker and G.J.W. Fozzard

States that there has been considerable interest in recent years over the development of a computer system to provide the garment designer with a 3D design environment…

1450

Abstract

States that there has been considerable interest in recent years over the development of a computer system to provide the garment designer with a 3D design environment. Although the use of such technology is commonplace in many industries, the problems associated with the development of a suitable system for garment design have yet to be fully resolved. Envisages that such a system would provide the tools to develop a 3D simulation of a prototype garment which can be viewed from any angle prior to making a physical sample. This combined with the facility to develop the corresponding 2D pattern shapes and evaluate the fit of the virtual garment make the prospect of such a system extremely enticing. Considers the need for 3D working methods in garment design and the research issues involved in the development of a 3D computer aided design (CAD) system for garment design. The potential features of such a system are introduced in the context of a hypothetical system. Discusses the approach of a number of researchers in the field and considers future developments.

Details

International Journal of Clothing Science and Technology, vol. 10 no. 2
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 8 April 2020

Azimah Omar, Muhamad Saipul Fakir, Khairus Syifa Hamdan, Nurul Hidayah Rased and Nasrudin Abd. Rahim

The purpose of this paper is to investigate the chemical, optical and photovoltaic properties of titanium dioxide/reduced graphene oxide (TiO2/rGO) photoanodes immersed in…

Abstract

Purpose

The purpose of this paper is to investigate the chemical, optical and photovoltaic properties of titanium dioxide/reduced graphene oxide (TiO2/rGO) photoanodes immersed in natural Roselle and synthetic (N719) dyes for dye-sensitized solar cell (DSSC) application.

Design/methodology/approach

TiO2 mixed with rGO were doctor-bladed on fluorine doped tin oxide (FTO) glass substrate. The chemical and optical properties of TiO2/rGO photoanodes immersed in Roselle and N719 dyes were characterized using Fourier-transformed infrared (FTIR) and ultraviolet–visible (UV–vis) spectroscopies, respectively. The DSSC’s photovoltaic performances were tested using Visiontec Solar I-V tester at standard illumination of AM1.5 and irradiance level of 100 mW/cm2.

Findings

The presence of anthocyanin dye from Roselle flower was detected at 604 nm and 718 nm. TiO2/rGO+Roselle dye sample revealed the smallest energy gap of 0.17 eV for ease of electron movement from valence band to conduction band. The TiO2/rGO-based DSSC fabricated with Roselle dye had a power conversion efficiency, ƞ of 0.743 per cent higher than TiO2/rGO photoanode sensitized with N719 dye (0.334 per cent). The obtained J-V curves were analyzed by a single-diode model of Lambert W-function and manual optimization to determine the internal electrical parameters of the DSSC. The average and uncertainty values of Jsc and ƞ were evaluated at different Rsh range of 1362 Ω to 32 k Ω.

Research limitations/implications

Rs values were kept constant during optimization work.

Originality/value

New ideality factor of TiO2/rGO-based DSSC was re-determined around 0.9995.

Details

Pigment & Resin Technology, vol. 49 no. 4
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 19 April 2013

Kunhong Hu, Yongkui Cai, Xianguo Hu and Yufu Xu

The purpose of this paper is to explore the synergistic lubrication of MoS2 particles with different morphologies.

Abstract

Purpose

The purpose of this paper is to explore the synergistic lubrication of MoS2 particles with different morphologies.

Design/methodology/approach

The synergistic lubrication of MoS2 particles with different morphologies is evaluated using a four‐fall tribometer in liquid paraffin.

Findings

Results show that the morphology of MoS2 has an influence on the tribological properties of MoS2. Both MoS2 nano‐balls and nano‐platelets function as lubrication additives in liquid paraffin better than MoS2 micro‐platelets do. It is also found that there is a synergistic lubrication between two different morphologies of MoS2. The composite MoS2 additives with different morphologies can improve the wear resistance and friction reduction of liquid paraffin more than each of them singly does. The synergistic lubrication between two different MoS2 morphologies results from the cooperation of their different lubrication mechanism.

Originality/value

The paper reveals a synergistic lubrication between two different MoS2 structures. It is very advantageous and practical to partly displace nano‐MoS2 with micro‐MoS2.

Details

Industrial Lubrication and Tribology, vol. 65 no. 3
Type: Research Article
ISSN: 0036-8792

Keywords

Book part
Publication date: 9 January 2012

B. Preedip Balaji

This chapter outlines current developments in Indian libraries, information services and cultural sector collectively highlighting recent trends and developments as India…

Abstract

This chapter outlines current developments in Indian libraries, information services and cultural sector collectively highlighting recent trends and developments as India increasingly takes centre stage in the area of libraries and information literacy development. The chapter also provides a critical analysis of library and information science education in India and highlights the need for government strategies and policies related to public libraries. Some 17 federal states and union territories in the Republic of India have no public library legislation and therefore low literacy rates. India needs public awareness campaigns, civic engagement and community developments including the grass-roots empowerment of public libraries. Financial reforms, modernization and federal funding strategies for public libraries are also required to energize cultural organizations and national libraries. A recent major development is the establishment of a National Commission on Libraries following recommendations by the National Knowledge Commission. However, Indian public libraries do not cater sufficiently for the growing youth population or other strata's of Indian society. The growing Indian higher education sector also necessitates information policies for open access, digital preservation and repositories development.

Details

Library and Information Science Trends and Research: Asia-Oceania
Type: Book
ISBN: 978-1-78052-470-2

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