Qaşr Hallāl, Tunisia
Qaşr Hallāl, Tunisia

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Jeguirim S.E.-G.,Textile Research Unit | Sahnoun M.,Textile Research Unit | Dhouib A.B.,Textile Research Unit | Cheickrouhou M.,Textile Research Unit | And 2 more authors.
International Journal of Clothing Science and Technology | Year: 2011

Purpose: The purpose of this paper is to model the relationship between manufacturing parameters, especially finishing treatments and instrumental tactile properties measured by Kawabata evaluation system. Design/methodology/approach: Two soft computing approaches, namely artificial neural network (ANN) and fuzzy inference system (FIS), have been applied to predict the compression and surface properties of knitted fabrics from finishing process. The prediction accuracy of these models was evaluated using both the root mean square error and mean relative percent error. Findings: The results revealed the model's ability to predict instrumental tactile parameters based on the finishing treatments. The comparison of the prediction performances of both techniques showed that fuzzy models are slightly more powerful than neural models. Originality/value: This study provides contribution in industrial products engineering, with minimal number of experiments and short cycles of product design. In fact, models based on intelligent techniques, namely FIS and ANNs, were developed for predicting instrumental tactile characteristics in reference to finishing treatments. © Emerald Group Publishing Limited.

Belhaj Khalifa I.,University of Monastir | Ladhari N.,Textile Research Unit | Touay M.,Tunisian Korean Project of Sericiculture
Journal of the Textile Institute | Year: 2012

In this study, we fixed silk sericin in fabrics as a finishing product. First of all, we have extracted sericin from silkworm cocoons in order to obtain the optimum yield of sericin that is not denatured. For this reason, we have searched the optimum parameters for a favorite sericin extraction. Then, the sericin extracted was fixed onto wool and cotton fabrics in an aim to modify some of their properties. The tests of treated fabrics showed that sericin has an affinity for wool, whereas it does not have it for cotton. This affinity for wool fiber was obtained in defined conditions with about 48% exhaustion rate for a sericin concentration of 2.5% (w/w). Compared to different sericin concentrations (0%, 2.5%, 5%, 10% and 20%), a 5% of sericin (w/w) improved the wool samples touch until a score of 4 points, as well as the water's absorption with a profit of 70.75%. The samples also showed an improved antibacterial activity. © 2012 Copyright The Textile Institute.

Khlif H.,Textile Research Unit | Dhouib S.,Textile Research Unit | Abdessalem S.B.,Textile Research Unit | Sakli F.,Textile Research Unit
Fibers and Polymers | Year: 2012

For nearly half a century textile prostheses have been intensively used in vascular surgery. They have saved millions of human lives, but they are not yet perfect. Graft failures have been, in part, attributed to the prostheses finishing processes, generally based on thermal treatments. These treatments permit to reduce fabric porosity and fix the wavy form of prosthetic tube walls involved by crimping process. Four tubular fabrics have been woven with different polyethylene terephthalate (PET) yarns spun under different industrial processes: Setila, Dacron, Diolen and Viscosuisse. Three heat setting techniques were investigated for prostheses crimping: dry heat, vapor heat and autoclaving. Crystallinity index and crystal growth in the equatorial directions have been calculated from Wide Angle X-ray Scattering scans. The aim was to analyze physical structural changes of PET fibers after thermal finishing processes applied to textile vascular prostheses and highlight fiber morphological evolutions related to these treatments. Viscosuisse yarns held the largest crystalline domains built up of numerous crystals but smaller than Dacron ones. However, the best crystalline configurations for the overall yarns were generally obtained for dry heat processes. Compromise regions of treatment conditions for prosthetic Dacron tubes were also obtained to optimize crystal development for the different crimping processes. © 2012 The Korean Fiber Society and Springer Netherlands.

Sayeb S.,Textile Research Unit | Marzoug I.,Textile Research Unit | Hassen M.B.,Textile Research Unit | Sakli F.,Textile Research Unit | Rodesli S.,University of Monastir
Journal of the Textile Institute | Year: 2010

Natural fibres present multiple characteristics and are used in many fields such as textiles, technical or medical applications. In this context, we tried to use ligno-cellulosic fibres extracted from esparto (Stipa tenacissima L) as a support fiber in hygienic products. Due to their cellulosic nature, esparto fibres can provide a certain water sorption potential. In fact, fluff pulp was always used as a support fibre in the absorbent core structure of many hygienic products and this is particularly after adding super absorbent polymer (SAP). In this study, we choose to optimise the extraction process of these fibres using an experimental design method in order to obtain ultimate fibres and maximise their absorbent properties (absorbent capacity and retention). © 2010 The Textile Institute.

Halleb N.,Textile Research Unit | Amar S.B.,University of Monastir
Journal of the Textile Institute | Year: 2010

The objective of this study is to predict the mechanical behaviour of fabrics in uniaxial tensile using only their technical parameters. To achieve this objective, it was necessary, in first stage, to develop a model which can simulate this fabric mechanical behaviour. A modified form of a rheological model is used to describe the mechanical behaviour of fabrics in uniaxial tension. The proposed analytical model can fairly well replicate the behaviour of fabrics during relaxation and simple traction. In order to characterise the coefficients of this model, simple uniaxial tension and relaxation tests were performed for 29 fabrics in the warp and the weft directions. A retro-propagation algorithm is applied in training the artificial neuronal network, which performs a functional mapping between these mechanical coefficients and the technical parameters of fabric. This allowed us to predict the mechanical behaviour in tension and relaxation of fabrics starting only from their technical parameters. © 2010 The Textile Institute.

Taieb A.H.,Textile Research Unit | Msahli S.,Textile Research Unit | Sakli F.,Textile Research Unit
International Journal of Sustainable Engineering | Year: 2010

We can enhance our quality of life and reduce environmental impacts by making improvements in textile product design. By thinking about the environment when we design, choose and use technology, we can play an important part in building a better world for the future. If we are going to live in a sustainable way, the technology that we use has to be sustainable. This paper provides an insight into how the design of textile products could provide for a more sustainable future. It describes a design concept for an ecological relaxing textile that uses photovoltaic cells to collect and store solar energy and to power an electronic relaxing system. This design may help improve our quality of life now and in the future. The raw materials and processes, the electronic devices and the dimensions of solar energy for this application are analysed from an environmental perspective. The solar relaxing textile can facilitate our daily life by providing increased comfort and well being, and also acts as an indirect message to use renewable energy within textile support, in order to preserve our ecology. © 2010 Taylor & Francis.

Makhlouf C.,University of Monastir | Ladhari N.,Textile Research Unit | Roudesli S.,University of Monastir | Sakly F.,Textile Research Unit
Coloration Technology | Year: 2012

Polyamide 6.6 fibres were modified for the improvement of dyeing affinity using a graft copolymerisation method. These fibres were grafted with acrylic acid as monomer. The influence of the chemical modification of polyamide 6.6 fibres on the dyeing properties was investigated using a cationic dye (Red Astrazon5BL). It was shown that the dye uptake of the modified fibres was greater than that of the unmodified fibres. The kinetic study of the cationic dye used at various grafting percentages showed an improvement of the dye build-up rate, such as its exhaustion. In addition, an increase in the adsorption of the dye quantity fixed on the surface layer of the fibre made up of the grafted molecules was announced. Colour fastness to washing was improved with the grafting percentage. The modelling of the adsorption isotherms using Langmuir, Freundlich and Jossen relations allows the determination of isotherm constants. The results obtained from this modelling study show the existence of several models corresponding to various percentages of grafting. © 2012 The Authors. Coloration Technology © 2012 Society of Dyers and Colourists.

Khedher F.,Textile Research Unit | Dhouib S.,Textile Research Unit | Msahli S.,Textile Research Unit | Sakli F.,Textile Research Unit
International Journal of Clothing Science and Technology | Year: 2011

Purpose: The purpose of this paper is to study the effect of matter, laundering types, special treatments and their succession applied during the manufacturing process of garment washing on the cloth shade. Design/methodology/approach: Denim garment manufacturers are interested in finishing cloth to characterizes the aging look of the cloth. The effect of matter, laundering, special treatments and their succession were studied. The treatments have been done on manufactured trousers. One rigorous statistical study is achieved to validate the experimental results. Findings: The mixed washing is the most degrading for the shade of cloth and appearance of the garment's surface and the succession of special treatments of finishing is demanded to have an increasing whiteness. The finishing resin-treatment realized before any washing process (stone washing or mixed washing) provokes a slight increase of garment colour resistance. Practical implications: Information from this study will aid manufacturers of garment washing jeans in selecting the finishing method that suits their marketing/manufacturing plants. Originality/value: Garment washing is a technology incorporated by garment manufacturers to be able to provide a product in response to consumer's wants. This study of the effect of matter, washing type, special treatments and their succession on garment denim blue jeans shade provides garment manufacturers with information about the methodical line of finishing to obtain the wanted cloth shade. © Emerald Group Publishing Limited.

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