Issue 4 / 2022

Inner covers

Article: Study of the flexural properties of polyurethane-foam-core composites reinforced with warp-knitted spacer fabric

Authors: GE LOU, WEI WU, SI CHEN
Pages: 347–353
DOI: 10.35530/IT.073.04.202155
Published online: August 2022

Abstract

In this paper, novel ternary composites consisting of polyurethane-foam-core, warp-knitted spacer fabrics and polyurethane resin were involved. The composites obtain unique three-dimensional structures, high strength and a variety of surface structures. The aim of this study was to investigate the flexural properties of the composites. First, the warp-knitted spacer fabrics with different structural parameters were laminated with polyurethane foam to produce the foam-core materials. Meanwhile, two types of microspheres were incorporated into the polyurethane foam. Then the prepared foam-core materials were combined with polyurethane resin to fabricate the polyurethane composites. A flexural test was conducted to investigate the effects of the surface structure of spacer fabrics, microspheres types and contents on the flexural properties of the polyurethane composites. The findings show that the composites had excellent flexural properties and the flexural performance can be significantly improved by varying the surface structure of the fabric and the type of microspheres to meet specific end-user requirements.
Keywords: Polyurethane-foam-core, warp-knitted spacer fabric, polyurethane resin, microspheres, flexural properties

Citation: Lou, G., Wu, W., Chen, S., Study of the flexural properties of polyurethane-foam-core composites reinforced with warp-knitted spacer fabric, In: Industria Textila, 2022, 73, 4, 347–353,   http://doi.org/10.35530/IT.073.04.202155

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Article: Appropriate software model for evaluating the effect of untreated and treated sisal fibre with different gauge length and strain rates for geotextile applications

Authors: I. BHUVANESHWARRI, V. ILANGO
Pages 354–364 
DOI: 10.35530/IT.073.04.202136
Published online: August 2022

Abstract

Geotextiles are commonly used as reinforcement in building, engineering and road laying applications. The sisal fibre is one of the natural fibres which is used to reinforce soil and prevent damage. This sisal fibre is specifically helpful to fill gaps between roads to improve soil structure, and prevent soil erosion but allows the water to drain off. This paper is concerned with the study of the effect of gauge length on the strength and elongation of sisal fibres in untreated and treated states with sodium hydroxide at different concentrations and duration of treatment. The reason for applying sodium hydroxide treatment on sisal fibre is to remove the impurities from it and to improve the inter fibre adhesion with resin for producing a composite. The effective reinforcement of composites with plant fibres depends on the moisture content and the fibre matrix interfacial adhesion. Treatment with alkali improves the performance of fibres when they are used as composites. Also, the effect of strain rate on the strength and elongation of sisal in untreated and treated states has been investigated. The Weibull modelling software model has been used in many studies to quantify the degree of variability in the fibres. This paper deals with the application of an appropriate software model such as the Weibull distribution model for quantifying the variability in strength and elongation at different gauge lengths varied from 10 mm to 100 mm and also varied the strain rate from 10 mm/min to 500 mm/min. In addition to the Weibull distribution model, air plasma treatment and SEM (Scanning Electron Microscope) analysis on sisal fibre were also carried out in this paper. The result shows that the sisal fibre is more suitable for geotextile applications.
Keywords: air plasma treatment, composite, gauge length, SEM analysis, sisal fibre, strain rate, Weibull distribution model

Citation: Bhuvaneshwarri, I., Ilango, V., Appropriate software model for evaluating the effect of untreated and treated sisal fibre with different gauge length and strain rates for geotextile applications, In: Industria Textila, 2022, 73, 4, 354–364,   http://doi.org/10.35530/IT.073.04.202136

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Article: Investigating the impact of COVID-19 pandemic on volatility patterns and its global implication for textile industry: An empirical case study for Shanghai Stock Exchange of China

Authors: JATIN TRIVEDI, MOHD AFJAL, CRISTI SPULBAR, RAMONA BIRAU, KRISHNA MURTHY INUMULA, NARCIS EDUARD MITU
Pages 365–376 
DOI: 10.35530/IT.073.04.202148
Published online: August 2022

Abstract

This research paper aims to examine the impact of the COVID-19 pandemic on volatility patterns and its global implication for the textile industry in China. The COVID-19 pandemic has generated a global health crisis with profound economic, social and financial implications, but also has triggered a ruthless global recession. The global economic recovery as a result of the COVID-19 pandemic can also generate significant investment opportunities for the textile industry in China. In this paper, the application of empirical methods could explain historical prices, the movement dynamics of financial assets, and investigate various important characteristics of asset pricing that explore details of the Chinese stock market. The econometric framework includes the following: symmetric Generalize Autoregressive Conditional Heteroscedastic GARCH (1,1) model, asymmetric GARCH models such as EGARCH and GJR models. The main aim is to identify the asymmetric volatility effect, and impact of news on the SSE Composite Index and investigate long memory properties in volatility using daily data for the sample period from 19th December 1990 to 31st December 2020. This empirical study contributes to the existing literature on the impact of the COVID-19 pandemic on international stock markets, by investigating symmetric and asymmetric volatility patterns in the case of the Shanghai Stock Exchange from China.
Keywords: GARCH family models, symmetric volatility, asymmetric volatility, COVID-19 pandemic, apparel, textile industry, economic recession, leverage effect

Citation: Trivedi, J., Afjal, M., Spulbar, C., Birau, R., Inumula, K.M., Mitu, N.E., Investigating the impact of COVID-19 pandemic on volatility patterns and its global implication for textile industry: An empirical case study for Shanghai Stock Exchange of China, In: Industria Textila, 2022, 73, 4, 365–376,   http://doi.org/10.35530/IT.073.04.202148


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Article: Study on the influence of external wind field on the terminal trajectory of projectile-parachute system

Authors: PENG SUN, YING ZHANG, YIHAO OUYANG, JIE PAN
Pages 377–383 
DOI: 10.35530/IT.073.04.202151
Published online: August 2022

Abstract

Parachutes are used for aerial projectile deceleration and trajectory control in the military field. Although the existing multi-degree-of-freedom and multi-body dynamics model has a small amount of calculation, the external wind field in this model is simplified, and the influence laws of which on the terminal trajectory are not clear. Therefore, a projectile-parachute system is regarded as the research object in this work. A Fluid-Structure Interaction (FSI) model was used to analyse this system’s terminal trajectory. The cases with different wind velocity, wind directions, and initial trajectory angles were calculated. As a result, the external wind field has a great influence on the terminal trajectory of this projectile-parachute system. The difference in impact points in cases is positively correlated with the external wind velocity. At the same wind velocity, the trajectory in the upwind condition is easier to change than that in the downwind condition, and the difference in impact points is negatively correlated with the initial trajectory angle. While the external wind field has little influence on the projectile-parachute system’s deceleration, the swing angle, and the trajectory angle of the canopy. This system’s deceleration effect in the initial dropping process is more obvious under the upwind condition, and the deceleration effect will tend to be the same with the trajectory angle close to 90 degrees. Therefore, the influence of the external wind field on the terminal trajectory can be effectively reduced by increasing the initial trajectory angle, and the changes in canopy swing angle and trajectory angle will tend to be more stable in this situation.
Keywords: terminal trajectory, engineered fabrics, parachute, Fluid-Structure Interaction

Citation: Sun, P., Zhang, Y., Ouyang, Y., Pan, J., Study on the influence of external wind field on the terminal trajectory of projectile-parachute system, In: Industria Textila, 2022, 73, 4, 377–383,   http://doi.org/10.35530/IT.073.04.202151

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Article: An empirical study regarding the environmental sustainability practices in the textile industry

Authors: SHAHEEN SARDAR, MUHAMMAD MOHSIN, MUHAMMAD SAAD MEMON, BABAR RAMZAN, RABIA SHARIF
Pages 384–396 
DOI: 10.35530/IT.073.04.202152
Published online: August 2022

Abstract

The textile industry causes various types of pollution due to extensive utilization of resources, resulting in harmful impacts on the natural environment and people’s health. As a result, many environmental organizations and countries are implementing various environmental safety policies. The developing countries are making less effort in the protection of the global environment. Hence, it is very important to analyse the environmental sustainability situation of the developing production markets and subsequently provide suggestions for improvement. Pakistan is a developing textile market, providing a range of textile products around the world. This paper presents the results of a survey regarding the environmental sustainability in the textile industry of Pakistan related to energy sustainability, water sustainability, air sustainability, materials sustainability, transportation sustainability, safety & health and consumer use sustainability. For the data collection, this research uses a structured questionnaire, interviews, and personal visits to 122 textile mills. Data collected through a questionnaire related to the above areas of sustainability was analysed by calculating the frequency distribution, mean, and median in the statistical software SPSS. The results of the data analysis exhibited that the Pakistani textile companies are gradually improving many environmental sustainability areas. The paper identifies some weak sustainability areas which need more attention to accelerate the implementation process. In addition, the textile companies that are involved in international trade tend the implementation of environmental sustainability. In addition, this study integrates the insights for policymakers and practitioners to improve the environmental sustainability in the textile industry of the developing markets.
Keywords: textile sustainability, energy sustainability, materials sustainability, water sustainability, sustainable development, survey methods

Citation: Sardar, S., Mohsin, M., Memon, M.S., Ramzan, B., Sharif, R., An empirical study regarding the environmental sustainability practices in the textile industry, In: Industria Textila, 2022, 73, 4, 384–396,   http://doi.org/10.35530/IT.073.04.202152

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Article: Investigation of deformation properties of textured multifilament PES yarns

Authors: JOVANA STEPANOVIĆ, TATJANA ŠARAC, DUŠAN TRAJKOVIĆ, JOVAN STEPANOVIĆ
Pages 397–404 
DOI: 10.35530/IT.073.04.202167
Published online: August 2022

Abstract

In the process of texturing, smooth filaments are formed into crimpy yarns. By combining thermal and mechanical action, thermoplastic fibres acquire a permanent wavy shape.
Since textured multifilament yarns, formed from POY PES filaments, produced on machines with high-temperature heaters, are insufficiently studied, this paper analyses the deformation characteristics of yarns produced in industrial conditions using different process parameters (primary heater temperature, yarn speed, yarn stretching, peripheral speed of friction discs). Special attention is paid to the characteristics at the elastic limit, then at the creep limit, yield and breaking of multifilament textured yarns. A method is proposed which can determine the key points of deformation in the process of stretching textured polyester multifilament yarn, as well as the relationship between the values of force and elongation at the limits of elasticity, creep, end of creep zone, yield and break.
Keywords: textured yarn, false twisting, elastic limit, creep limit, yield point, breaking force

Citation: Stepanović, J., Šarac, T., Trajković, D., Stepanović, J., Investigation of deformation properties of textured multifilament PES yarns, In: Industria Textila, 2022, 73, 4, 397–404,   http://doi.org/10.35530/IT.073.04.202167

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Article: Quality assessment of fabrics obtained from waste

Author: YITIK BEKIR
Pages 405–410 
DOI: 10.35530/IT.073.04.202164
Published online: August 2022

Abstract

The need for ready-made clothing and home textiles produced from natural and synthetic fibres is increasing day by day in order to meet the needs of the increasing world population. Recently, the concepts of sustainability and recycling have gained importance in the textile industry. The rapid change in today's trends has developed disposable habits. Due to the rapidly changing fashion trends, the product variety has increased and mass production has been preferred. Therefore, the priority for customers to choose the products was not the material used, but whether they fit the current fashion trend. Thus, the use and production of natural fibres should be increased to reduce environmental pollution and meet production demand. Thanks to recycling, it is possible to reuse the waste textile materials that we leave to nature. Due to the increase in agricultural production costs, it has become difficult to obtain the raw materials used for textiles. When a life cycle system is created for raw materials that evaluate them until it is produced in nature and then return to nature, production with textile waste recycling can be advantageous. Using natural waste fibres instead of natural virgin fibres to produce home textile products both reduces costs and makes production easier. In this study, recycled (waste) cotton was obtained by shredding white, 100% cotton woven duvet covers and sheets purchased from a private hospital. A 50%-50% waste-natural blend was created from the cotton obtained. 54 wire reference fabrics were woven using open-end yarns numbered Ne24 and Ne12 produced from this blend. The physical characteristics of the fabric were investigated. The results obtained were analysed statistically and the effect of the blend created on the fabric quality was comprehensively examined.
Keywords: textile waste, recycling, sustainability, life cycle

Citation: Bekir, Y., Quality assessment of fabrics obtained from waste, In: Industria Textila, 2022, 73, 4, 405–410,   http://doi.org/10.35530/IT.073.04.202164

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Article: Is transformational leadership instrumental to environmental sustainability?
A perspective of Pakistani textile sector

Authors: SHAMAILA GULL, UROOJ QAMAR, SYEDA NAZISH ZEHRA BUKHARI, ASIM TANVIR
Pages 411–419 
DOI: 10.35530/IT.073.04.202157
Published online: August 2022

Abstract

This study proposes to highlight the role of transformation leadership in enabling environmental sustainability efforts. In this regard, a mediating role of green human resource management is investigated to understand the association between transformation leadership and environmental sustainability. The study follows a quantitative and cross-sectional research approach. A self-administered questionnaire was used to collect the responses from 200 managerial-level employees of ISO-14001 certified textile organizations in Lahore, Pakistan. Furthermore, the study hypotheses were tested by applying linear regression and Hayes’ Process in SPSS to determine the interconnected dependence of the study variables. The findings of the study demonstrate that transformational leadership plays an instrumental role in the implementation of environmental sustainability strategy. The results also reveal that green human resource management significantly mediates the relationship between transformational leadership and environmental sustainability. The research outcomes portray a stringent need to apply the transforming abilities of the organizational leaders for fostering environmental initiatives; a contribution to a broader cause of global environmental sustainability.
Keywords: transformational leadership, environmental sustainability, green human resource management, textile sector, Pakistan

Citation: Gull, S., Qamar, U., Bukhari, S.N.Z., Tanvir, A., Is transformational leadership instrumental to environmental sustainability? A perspective of Pakistani textile sector, In: Industria Textila, 2022, 73, 4, 411–419,   http://doi.org/10.35530/IT.073.04.202157

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Article: Old maps and the effectiveness of chitosan as antimicrobial agent

Authors: LILIANA INDRIE, LUCIA CAPABLANCA FRANCES, EMRE ERDEN, MUSA KILIC DORİNA CAMELİA ILIES, VASILE GRAMA, BAHODIRHON SAFAROV, ZLATIN ZLATEV
Pages 420–425 
DOI: 10.35530/IT.073.04.202156
Published online: August 2022

Abstract

In the case of tangible cultural heritage items made of natural fibres, biodegradation due to microorganisms can lead over time to undesirable deterioration, including physical, mechanical and chemical damage as well as aesthetic alteration of materials. In this study, the antifungal activity tests were performed on 3 old maps (on silk, on canvas and on paper) using the AATCC 30-2004 test method. Map samples were immersed in a chitosan solution (10 g/l) and evaluated using Scanning Electron Microscopy (SEM) with a Field Emission Scanning Electron Microscope (ULTRA 55, ZEISS). The process showed that, due to its antimicrobial effect, chitosan treatment is effective for removing external agents and microorganisms present on fibre surfaces. The technique is simple, efficient and the results indicated that chitosan can be transformed into a very good and cheap antimicrobial solution for the conservation and preservation of heritage objects.
Keywords: old maps, natural fibres, fungi, impurities, chitosan, antimicrobial

Citation: Indrie, L., Frances, L.C., Erden, E., Kilic, M., Ilies, D.C., Grama, V., Safarov, B., Zlatev, Z., Old maps and the effectiveness of chitosan as antimicrobial agent, In: Industria Textila, 2022, 73, 4, 420–425,   http://doi.org/10.35530/IT.073.04.202156

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Article: The impact of technological innovation from domestic innovation, import and FDI channels on carbon dioxide emissions of China's textile industry

Authors: SHEN PANDENG, HE LIN, ZHANG JIANLEI, CHENG LONGDI
Pages 426–431 
DOI: 10.35530/IT.073.04.202149
Published online: August 2022

Abstract

Technological innovation is the key to reducing carbon dioxide (CO2) emissions. In order to analyse the role of technological innovation from domestic innovation, import and FDI channels in the CO2 emissions reduction of China's textile industry (CTI), this study uses OLS models to study the impact of domestic innovation, import technology spill over and FDI technology spillover on CO2 emissions and CO2 emission intensity of CTI respectively. The research results show that domestic innovation has significantly reduced CTI’s CO2 emissions and CO2 emission intensity, while import technology spillover has increased them. FDI technology spillover has increased CO2 emission intensity, but its impact on CO2 emissions isn’t significant. Therefore, China should take domestic R&D investment as the key measure to reduce CTI’s CO2 emissions in the future and continue to improve the level of independent innovation. China should also attract more low-carbon and green international investment and avoid becoming the "pollution heaven" for high-emission capital. The level of technology embedded in the imported textile products should be improved further. The use of various technological innovation strategies not only reduces CTI’s CO2 emissions but also makes positive contributions to China's goal of "carbon peaking and carbon neutralization"
Keywords: China's textile industry, carbon dioxide emissions, technological innovation, domestic innovation, import, FDI

Citation: Pandeng, S., Lin, H., Jianlei, Z., Longdi, C., The impact of technological innovation from domestic innovation, import and FDI channels on carbon dioxide emissions of China's textile industry, In: Industria Textila, 2022, 73, 4, 426–431,   hhttp://doi.org/10.35530/IT.073.04.202149

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Article: An overview of hemp for fibre market opportunities for Romania

Authors: ANCUTA MARIN, MARIAN BUTU, VILI DRAGOMIR, IONICA ONCIOIU, IULIANA DOBRE
Pages 432–437 
DOI: 10.35530/IT.073.04.20226
Published online: August 2022

Abstract

Hemp has been cultivated by man for its multiple uses: its solid fibres for textiles, its nutritious oilseeds and the medicinal and therapeutic properties of its resin. Hemp is a technical plant that has been cultivated in Romania for over 2,000 years, its main use being to obtain fibres for making clothing. Before 1989, in Romania hemp was cultivated in large areas, exceeding 50,000 hectares, ranking 4th in the world. After 1989, interest in cultivating hemp declined, and by 2008 this crop has almost disappeared.
Starting from national production capacity, this paper is presenting an overview of the textile market in Europe, with a view on the hemp market, and the marketing possibilities for Romanian hemp, based on calculations retrieved from official data available on INTRACEN and the National Institute of Statistics of Romania.
The study of production capacities was analysed in terms of cultivated areas and productions obtained in Romania, reported in official national statistics. For a market projection, the data were extracted from the trade map database. The export potential was studied taking into account the harmonized standard codes for hemp.
Keywords: textile industry, hemp for fibre, market analysis, export potential

Citation: Marin, A., Butu, M., Dragomir, V., Oncioiu, I., Dobre, I., An overview of hemp for fibre market opportunities for Romania, In: Industria Textila, 2022, 73, 4, 432–437,   http://doi.org/10.35530/IT.073.04.20226

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Article: Crude oil futures to manage the price risk of textile equities: An empirical evidence from India

Authors: B. R. PRADEEP KUMAR, K. ABHAYA KUMAR, PRAKASH PINTO, IQBAL THONSE HAWALDAR, CRISTI SPULBAR, RAMONA BIRAU, LUCIAN CLAUDIU ANGHEL
Pages 438–446 
DOI: 10.35530/IT.073.04.202177
Published online: August 2022

Abstract

The textile sector in India is the oldest manufacturing sector. As the raw materials for this sector are sourced from the petrochemical industries, the earnings of Indian textile companies are dependent on the crude oil price. The crude price in the international market has become more volatile and hence, the equity price of Indian textile companies has become more volatile. This study aims to develop two price risk management strategies for Indian textile equities. Using the vector autoregressive (VAR) model, a price forecast model, further the possibility of cross hedge for textile equities with the help of crude futures is examined using the Granger causality test and Pearson correlation statistics. The results of the study showed that crude futures price in India is one of the price determinants of textile industry stock prices.
Keywords: Crude oil futures, textile industry, stock prices, vector autoregressive (VAR) model, Granger causality test, Pearson correlation coefficient

Citation: Pradeep Kumar, B.R., Abhaya Kumar, K., Pinto, P., Hawaldar, I.T., Spulbar, C., Birau, R., Anghel, L.C., Crude oil futures to manage the price risk of textile equities: An empirical evidence from India, In: Industria Textila, 2022, 73, 4, 438–446,   http://doi.org/10.35530/IT.073.04.202177

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Article: Descriptive statistics for plane structures of the multilayer matrix for tissue haemostasis and regeneration

Authors: ALEXANDRA GABRIELA ENE, CARMEN MIHAI, EMILIA VISILEANU, ALINA FLORENTIAN VLADU, RADU-GABRIEL HERTZOG, DIANA POPESCU
Pages 447–453 
DOI: 10.35530/IT.073.04.202059
Published online: August 2022

Abstract

Bleeding, severe and infected wounds need to be cared for to facilitate recovery and prevent infection. The specific requirements imposed on dressings for the treatment of these wounds depend fundamentally on the type of lesion; moreover, they are based on the creation of an optimal environment that allows epithelial cells to move easily to facilitate regeneration. The objective of the research is to provide a multilayer medical device with composite characteristics, usable for basic medical interventions on superficial burns with thermal origin (flame and melts) occurred on anatomical regions protected by clothes (so except face and eyes). The outer, second and interfacing layers have specific characteristics. Regarding this aspect, 5 variants of woven textile structures were designed and made that differed in the nature of the raw material, the density of the length/fineness of the threads in the weft, the density in the weft and the binding. To characterize the populations of flat structures used to make the first layer of the matrix, methods specific to descriptive statistics were used. The following fundamental statistical indicators were calculated for each of the 3 variables considered defining (mass, thickness and absorption capacity): mean, dispersion and standard deviation; median and quartiles; eccentricity (skewness) and vaulting (kurtosis) for asymmetry and highlighting the cases in which interventions should be performed (on the technological flow or on the programming scheme). The results obtained by the statistical analysis of the groups of results allowed the findings to be generalized to larger populations, so for the whole set from which the respective sample was extracted. Depending on location and the severity of wounds resulting from shooting, explosions or fire (wounds that result in bleeding, impaired vital functions, the impotence of an anatomical segment, celsiene signs, etc.), the first layer of the matrix can be made of woven textile materials. After correlating the physico-mechanical characteristics of the textile structures with the subsequent processes (realization of layer II, layer III and functionalization), the technical and physico-mechanical characteristics of the multilayer matrix will be determined, and the location areas and the field of use (for haemostasis, regeneration of connective tissues or their simultaneous combination) will be established.
Keywords: dressings, descriptive statistics, textile structures, haemostasis, tissue regeneration

Citation: Ene, A.G., Mihai, C., Visileanu, E., Vladu, A.F., Hertzog, R.-G., Popescu, D., Descriptive statistics for plane structures of the multilayer matrix for tissue haemostasis and regeneration, In: Industria Textila, 2022, 73, 4, 447–453,   http://doi.org/10.35530/IT.073.04.202059

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Article: Tactile and mechanical investigation of screen printed specimens with puff effect

Authors: GORDANA BOŠNJAKOVIĆ, NEMANJA KAŠIKOVIĆ, GOJKO VLADIĆ, BOJAN BANJANIN, SAŠA PETROVIĆ, DRAGOLJUB NOVAKOVIĆ
Pages 454–459 
DOI: 10.35530/IT.073.04.1758
Published online: August 2022

Abstract

The subject of this paper was the investigation of the tactile and mechanical characteristics of printed specimens achieved using the manual technique of screen printing. The specimens are printed using ink enriched with a puff base. The puff base gives the print a three-dimensional shape and surface characteristics. This paper aims to investigate whether such prints can be used to improve the ergonomic characteristics of a product that undergoes in-hand manipulation. To determine the possibility of using a screen printing technique with a puff effect for ergonomic purposes, two experiments were performed. The first experiment involved subjective investigation of the tactile properties of the prints which are important since the end-users are people. The second experiment involved laboratory testing of the resistance of prints to mechanical rubbing (colour rendering) which is important since the prints should be able to endure a lot of in-hand manipulation. The specimens were printed using the manual screen printing technique on four different textile substrates. Apart from the substrate, the amount of added puff substance in ink and the screen printing mesh count varied. After testing the mechanical resistance to rubbing, colour differences were calculated. Based on the results obtained, resistance to mechanical effect was confirmed, and it was determined which prints have the best resistance and tactile features. Further investigations will be focused on investigating the same type of printing on different materials, and discovering how can prints with puff effect contribute to in-hand object manipulation.
Keywords: Puff effect, screen printing, mechanical resistance

Citation: Bošnjaković, G., Kašiković, N., Vladić, G., Banjanin, B., Petrović, S., Novaković, D., Tactile and mechanical investigation of screen printed specimens with puff effect, In: Industria Textila, 2022, 73, 4, 454–459,   http://doi.org/10.35530/IT.073.04.1758

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Article: Synthesis and characterization of novel resorcinol based trisazo reactive dye ligand and its different metal complexes for cotton dyeing

Authors: MUREED ABBAS, SHUMAILA KIRAN, GHUKAM HUSSAIN, TAHSIN GULZAR, MIRZA NADEEM AHMAD
Pages 460–467 
DOI: 10.35530/IT.073.04.202251
Published online: August 2022

Abstract

The goal of this study was to create a new trisazo reactive dye ligand from 6-nitro-2-aminophenol-4-sulphonic acid, resorcinol derivative, and vinyl sulphone para ester, as well as their metal complexes with Fe (II), Ni (II), Cu (II), and Zn (II). The diazotization of 6-nitro-2-aminophenol-4-sulphonic acid was followed by coupling to resorcinol in an alkaline medium for the synthesis of a mono-azo dye ligand. To make reactive dye, diazotized vinyl sulphone para ester was coupled with 6-nitro-2-aminophenol-4-sulphonic acid resorcinol derivative in an alkaline medium. Metal complexes of reactive dyes with 3d transition metals such as iron, nickel, copper, and zinc have also been created. The novel synthesized reactive dyes were applied to cotton to see how well they dyed. Spectro-analytical techniques were used to authenticate the compositions of all newly synthesized substances. The prepared reactive dyes were also used on textiles for dyeing features such as light fastness and wash fastness and were found to have high values of 4–5 on the grey scales, and 4–5 on the blue scales.
Keywords: resorcinol, diazotization, azo dye, coupling reaction, metal complexes, dyeing, fastness properties

Citation: Abbas, M., Kiran, S., Hussain, G., Gulzar, T., Ahmad, M.N., Synthesis and characterization of novel resorcinol based trisazo reactive dye ligand and its different metal complexes for cotton dyeing, In: Industria Textila, 2022, 73, 4, 460–467,   http://doi.org/10.35530/IT.073.04.202251

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