Rok 2022
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- ItemEvidence tisku Vlákna a textil(2022-04-06) Tunáková, Veronika
- ItemOznámení k evidenci a přidělení evidenčního čísla periodickému tisku(2022-11-09) Tunáková, Veronika
- ItemTHE INFLUENCE OF CONSTRUCTION OF NON-WOVEN TEXTILES ON AIR PERMEABILITY FOR THEIR APPLICATION IN THE COMMUNITY FACE MASKS(Technical University of Liberec, ) BALOGOVÁ, ĽUDMILA; HULJAKOVÁ, KAMILA; Technická univerzita v LiberciThe article is aimed at evaluating the air permeability of various types of non-woven fabrics prepared by Spunbond, Spunbond-Meltblown-Spunbond technology and non-woven fabrics reinforced mechanically by needling and thermal calendering. These are commercially available non-woven fabrics with various mass per unit area and thickness made of 100 % polypropylene, without special surface finish. By combining individual types of non-woven fabrics, three-layer and four-layer textile materials were prepared, meeting the minimum requirement of technical standardization information TNI CWA 17553 for air permeability, intended for application in the community face masks. As part of the experimental works, the effect of increased humidity on the air permeability of three-layer non-woven fabrics was verified as well.
- ItemTHE PROCESS OF MAKING BATIK AND THE DEVELOPMENT OF INDONESIAN BAKARAN MOTIFS(Technical University of Liberec, ) Supriyadi, Slamet; Prameswari, Nadia Sigi; Technická univerzita v LiberciBatik is one of the original handicrafts recognized by UNESCO as Indonesia's cultural heritage. Therefore, this research aims to explore the development of good quality innovative Indonesian batik designs for Micro, Small Medium Enterprise (MSMEs). This is practice based research with data collected through observation and interviews. The result showed that the designs of Bakaran motifs contain elements of the Pati city history, Central Java, Indonesia. The making of batik motif in this research also went through digitalization process for the efficiency of making the next batik. Therefore, the international community is expected to determine the beginning and ending process used by Micro, Small Medium Enterprise (MSMEs) craftsmen in producing good quality batik. Further research needs to be carried out to explore the development of batik Bakaran designs using Druju (Acanthus ilicifolius) flower motifs.
- ItemRESOURCE-SAVING TECHNOLOGY OF PRODUCING TEXTILE MATERIALS WITH ANTIMICROBIAL PROPERTIES(Technical University of Liberec, ) MARTIROSYAN, IRINA; PAKHOLIUK, OLENA; DZIUBYNSKYI, ANDRII; NIKOLAICHUK, LARISA; LUTSKOVA, VIKTORIA; LUBENETS, VIRA; PEREDRIY, OKSANA; Technická univerzita v LiberciThis work is devoted to the study of antimicrobial properties of cellulose-containing textile materials treated with new safe biocidal products of thiosulfonate structure. A resource-saving method of providing antimicrobial properties to cellulose-containing textile materials is presented. High antimicrobial activity of biocidal products after washing was established. The duration of action and expediency of their use in the textile industry are proved. It is shown that after 10 washes the treated tissues lose only 14-15% of antimicrobial properties.
- ItemSTUDY OF THE INFLUENCE OF ANTIMICROBIAL AGENTS ON THE OPERATIONAL AND HYGIENIC PROPERTIES OF CELLULOSE MATERIALS(Technical University of Liberec, ) Paraska, Olga; Kovtun, Hrystyna; Hes, Lubos; Horiashchenko, Serhiy; Technická univerzita v LiberciAt the present stage of development of society, in pandemic conditions, people are experiencing the growing influence of man-made factors (energy flows of internal and external origin, ionizing radiation, etc.), some drugs, pathogenic microflora (fungi, viruses, bacteria, intracellular parasites). The origination of a critical mass of parasitogens can be prevented by using, in addition to traditional methods of prevention and treatment, textile materials with certain additional properties obtained by antimicrobial treatment. The aim is to study the change in the operational and hygienic properties of cellulosic materials after treatment with antimicrobials. To assess the effect of antimicrobials (biguanide derivatives and quaternary ammonium salts) on the operational and hygienic properties of cellulosic materials (cotton fabric) the following indicators were taken into account: strength, stiffness, wrinkle recovery, capillarity of materials, structural and morphological characteristics. The results of research have confirmed the possibility of using solutions of antimicrobial agents for effective processing of wares, without destructive effects on the structure of cellulosic materials; allowed to introduce a research methodology to provide antimicrobial properties of cellulosic materials of different assortment.
- ItemA QUALITATIVE STUDY ABOUT INTERNATIONALIZATION OF TURKISH TEXTILE & CLOTHING INDUSTRIES(Technical University of Liberec, ) DIVRIK, BAHAR; BAYKAL, ELIF; Technická univerzita v LiberciThe national textile and clothing industries do not operate in isolation anymore; they are significant parts of one global sector which serve to the whole world. The Turkish textile and clothing industries are mainly export oriented and like other developing industries, they have an important role in the internationalization of the Turkish economy with their contribution to GDP, trade and employment. This article reviews the major developments that shaped the internationalization process of Turkish textile & clothing industries. Findings from semi-structured case studies with 14 Turkish textile and clothing industries tries to highlight the changes occurring currently in the industries. The qualitative data obtained from our research gives deep and detailed understanding of the Turkish textile and clothing industries.
- ItemFRAME MODEL OF UNIAXIAL STRETCHING OF 1x1 RIB KNITS(Technical University of Liberec, ) Yelina, Tetiana; Halavska, Liudmyla; Bobrova, Svitlana; Shcherban, Volodymyr; Dzykovych, Tetiana; Technická univerzita v LiberciOne of the nowadays challenges is the development of scientific sound models of knitwear deformations. The paper is devoted to developing an algorithm for constructing a frame model of rib 1x1 knits stretched in the course or wale direction. In the process of uniaxial stretching, the shape of the sample depends on the tensile forces orientation. A frame model of a deformed knitted structure, and an algorithm of construction of a mesh frame, are developed during the study. The frame model makes it possible to find coordinates of intermeshing points of every stitch. Then yarn characteristic points can be determined that, in turn, serve as input data for the construction of 3D model of rib 1x1 structure under uniaxial tensile deformations at the yarn level of detail. The study provides a graphical tool for formalization of geometric transformation that happen during 2D deformations of knitted structures, characterized by gradual change of the specimens width crosswise to the loading direction. This model is intended to become a part of a general deformation model of knitted fabrics.
- ItemINFLUENCE OF SOME WINDING PARAMETERS ON HAIRINESS OF YARN AFTER WINDING PROCESS(Technical University of Liberec, ) TRAN DUC TRUNG; CHU DIEU HUONG; DAO ANH TUAN; Technická univerzita v LiberciHairiness is an important quality parameter of yarn after winding process. It affects not only the quality of yarn, but also the productivity of the warping, weaving, knitting machines as well as the quality of produced fabrics. Hairiness is influenced by the factors of raw materials, technology and equipment at all stages of yarn production. This article presents the results of experimental research on the simultaneous influence of four typical winding parameters, including: Winding speed (Z1), the load on the friction discs of the yarn tensioner (Z2), the distance between the bobbin and the yarn guide (Z3) and the pressure of package on the grooved drum (Z4) to the increasing percentage of the hairiness of the yarns after winding compared to that before winding. Yarn hairiness was measured by Uster tester 5. By using the second-order orthogonal experimental planning, together with the support of Excel 2019 and Design Expert 11 software, an experimental matrix and mathematical models describing the relationship between the four winding parameters and increasing percentage of the hairiness of three types of yarn (carded Ne 31/1 CVCD, combed Ne 30/1 CVCM, combed Ne 30/1 COCM) are established. The research result is the scientific basis for selecting the optimal winding parameters in order to achieve the required increase in hairiness of the yarn after winding or predict hairiness increase of the yarns before winding.
- ItemDEVELOPMENT OF A METHOD TO DIGITIZE CLOTHING PATTERNS(Technical University of Liberec, ) ZAKHARKEVICH, OKSANA; KOSHEVKO, JULIA; SKYBA, MYKOLA; DITKOVSKA, OLESYA; SELEZNEVA, ANNA; LUSCHEVSKA, OLENA; Technická univerzita v LiberciThe study aims to develop a method to digitize a clothing pattern without a digitizer. For this study, we address the following objectives: formulate a hypothesis of the method, describe the method’s algorithm, and perform testing and evaluation of the developed method. The idea of the developed method is as follows: digitizing the clothing patterns might be achieved without digitizer by applying modification tools of the pattern design systems to the digital simple geometrical forms constructed directly in the graphical environment of the system. Testing and evaluation of the developed method confirmed the initial hypothesis. The achieved result of the current study is the alternative method to digitize clothing patterns when it is necessary to avoid additional costs.
- ItemDESIGNING OF HEALTH-SAVING MEN’S GLOVES(Technical University of Liberec, ) BUKHANTSOVA, LIUDMYLA; LUSCHEVSKA, OLENA; YANTSALOVSKYI, OLEKSANDR; KRASNIUK, LARYS; TROYAN, OLEKSANDR; KULESHOVA, SVETLANA; DITKOVSKA, OLESYA; Technická univerzita v LiberciLiving during a COVID-19 pandemic has negative effects on a person's psychophysiological state such as high-stress levels, leading to poor health, chronic fatigue and insomnia. As a result, the immunity is reduced, which is particularly dangerous today. One way to solve this problem is the use of health-saving clothing, which has additional features that provide the positive effect on the wearer’s body. The developed gloves affect the state of the human autonomic nervous system through biological-active locations in the places of the hand and wrist. An anthropometric study of the biological-active locations of the wrist and hand is performed to construct the glove design. An algorithm for constructing a drawing of the design of the designed product based on four measurements is proposed. The effectiveness of the adaptive gloves is confirmed by studying its effect on the psycho-emotional and psychophysiological state of a person without exposure to the product and after its use by software "Intera-Diacor" and "ROFES", and a questionnaire. The evaluation is performed after wearing gloves for 20-40 minutes. It was found that 83.3 % of the wearers of the health-saving gloves showed positive changes in the body's compensatory forces (stress) and the state of internal emotional fatigue. Thus, the use of health-saving gloves has a positive social, therapeutic (health-saving) and economic effect, as the product has several functions It is an accessory fashion, has hand protection, and, has additional features to positively influence the body of the person wearing it. This allows the future to talk about the use of consumer-friendly and effective ways to correct the men's psychoemotional and psychophysiological states, based on the safer-by-design concept.
- ItemUSE OF CHITOSAN AS ANTIMICROBIAL, ANTIVIRAL AND ANTIPOLLUTION AGENT IN TEXTILE FINISHING(Technical University of Liberec, ) ELAMRI, ADEL; ZDIRI, KHMAIS; BOUZIR, DHOUHA; HAMDAOUI, MOHAMED; Technická univerzita v LiberciWith the industrial developments in recent times, the textile industry also needs sustainable and environmental-friendly resources. Today’s world has been overburdened with the use of synthetic or hazardous materials in day-to-day life. Chitosan polymer obtained from chitin deacetylation, having a lot of properties beneficial to mankind without being hazardous to environment and humans is currently gaining popularity for research and development all over the globe. Antimicrobial and antiviral textile finishing with the help of chitosan is a new trend in the textile field. Also, chitosan having good adsorption properties finds its application in textile effluent treatments. This review reports and discusses multifunctional finishing and dyeing of textiles with chitosan and highlights its application for textile wastewater treatment.
- ItemDETERMINATION OF TENSION FOR ARAMID AND CARBON YARNS WHILE WEAVING INDUSTRIAL FABRICS(Technical University of Liberec, ) Shcherban, Volodymyr; Kolysko, Oksana; Melnyk, Gennadiy; Kolysko, Marijna; Shcherban, Yuriiy; Shchutska, Ganna; Technická univerzita v LiberciResulting from researches conducted to determine tension for para-aramid, meta-aramid, and carbon multifilament yarns during their contact with the operative parts of the weaving looms as part of the industrial fabrics formation process, we have found out that in threading areas the tension is increasing driven by variation of values of the friction forces in the contact area. It has been proven that tension degree of para-aramid, meta-aramid, and carbon multifilament yarns before industrial fabric formation area is influenced by (1) tension before cylindrical guide surface of an operative part, (2) radius of the cylindrical guide surface curve of the operative part, (3) contact angle between yarns and cylindrical guide surface of an operative part, (4) mechanical, physical and structural properties of para-aramid, metaaramid, and carbon multifilament yarns. It allowed (yet at the initial stage of design of technological process of industrial fabric formation) to determine para-aramid, meta-aramid, and carbon multifilament yarns tension before formation area depending on (1) form of threading line for yarns at the weaving loom, (2) mechanical, physical and structural properties of para-aramid, meta-aramid, and carbon multifilament yarns and industrial fabrics. The paper contains experimental research of interaction of para-aramid, metaaramid, and carbon multifilament yarns and cylindrical guide surfaces of the operative parts of automatic weaving looms. Based on experimental researches regression dependencies have been obtained between para-aramid, meta-aramid, and carbon multifilament yarns tension value after cylindrical guide surfaces of the operative part and (1) tension before cylindrical guide surface of the operative part, (2) radius of the cylindrical guide surface curve of the operative part, (3) contact angle between yarns and cylindrical guide surface of the operative part. Consecutive application of these regression dependencies allows to determine para-aramid, meta-aramid, and carbon multifilament yarns tension before industrial fabrics formation area. Analysis of regression dependencies allowed to find out values of technological parameters when para-aramid, meta-aramid, and carbon multifilament yarns tension before industrial fabrics formation area will be of minimum value. It will allow to minimize tension of para-aramid, metaaramid, and carbon multifilament yarns while manufacturing resulting in (1) yarn breakages reduction, (2) better productivity of weaving looms due to reduced stoppage time, (3) improved quality of manufactured industrial fabrics. Therefore, we can argue that suggested technological solutions are practically attractive. In view of this, it is reasonable to say that it is possible to directionally regulate the process of para-aramid, meta-aramid, and carbon multifilament yarns tension change while manufacturing industrial fabrics on the weaving looms through selection of values of guides’ geometrical parameters.
- ItemPECULIARITIES OF FUNCTIONING AND DIAGNOSTICS OF CROSS-SECTORAL ECONOMIC LINKS OF THE TEXTILE INDUSTRY OF UKRAINE(Technical University of Liberec, ) Ishchuk, Svitlana; Sozanskyy, Lyubomyr; Technická univerzita v LiberciThe analysis of cross-sectoral links and their comparative assessments identified the main problems of development of the textile industry of Ukraine. These include: high dependence on imported raw materials and components, low price competitiveness of Ukrainian textile industry products in the domestic market, the concentration of a significant part of production on the production of toll raw materials, imports of used clothing and footwear, cross-sectoral imbalance of Ukrainian textile industry. In particular, it is determined that the products of the textile industry in general, consumed by the Ukrainian economy are almost 60% covered by imports. Products used by the textile industry in their activities (costs) are covered by imports by a total of 49%. Ways to solve the identified problems and, thus, to optimize cross-sectoral linksships are proposed.
- ItemUSE OF THREE DIMENSIONAL PRINTING IN THE PRODUCTION OF TEXTILE PRINT FORMS(Technical University of Liberec, ) Petrushevski, Andri; Technická univerzita v LiberciSince the invention of woven fabric, various types of artistic printing on fabric have been used. One of the most ancient and widespread methods is letterpress and gravure printing. Besides printing, it is also widely used in industrial textile production. The creation of industrial printing plates is a very expensive process today. For this reason, for small editions more economical technologies are used, such as silk-screen printing. However, gravure and letterpress methods have several advantages over screen printing. Reducing the cost of production of printing plates of this type will be an undoubted progress. The relief on the surface of the printing plate is a three-dimensional construction. Therefore, it can be formed in the form of a digital three-dimensional model. Modern methods of three-dimensional printing make it possible to form a printed form based on such a digital model, suitable for use in the textile and printing industries. The introduction of this technology will definitely reduce the cost of manufacturing forms for textile printing. The article describes an experiment that confirms this assumption.
- ItemINFLUENCE OF ANTISTATIC POLYESTER FIBERS ON THE PROPERTIES OF COTTON AND POLYESTER SINGLE JERSEY KNITTED FABRICS(Technical University of Liberec, ) Asfand, Norina; Basra, Sikander Abbas; Daukantienė, Virginija; Jamshaid, Hafsa; Ali, Zulfiqar; Technická univerzita v LiberciIn this research, the influence of the antistatic polyester fibers containing carbon black on the comfort properties of 100% and blended cotton as well as on 100% and blended polyester single jersey knitted fabrics was evaluated. The research results revealed that the behavior of the investigated knitted fabrics was dependent on their structure and mechanical characteristics. The electrical resistance of knitted fabrics decreased significantly due to the use of 4% antistatic polyester fibers. The electrical resistance of the pure and blended cotton knitted fabric was lower than that of the pure and blended polyester knitted fabrics. Antistatic polyester fibers positively influenced the air permeability of the polyester knitted fabric. The air permeability of 100% and blended cotton fabrics was approximately 3.5 times compared to both 100% and blended polyester fabrics, respectively. The carbon black polyester fibers influenced the decrease in thermal resistance, the increase in vapor permeability, and the minor increase in vapor resistance of both cotton and polyester knitted fabrics. Thermal resistance was lower, water vapor resistance was significantly higher, and relative water vapor permeability was slightly lower for the cotton and cotton/antistatic polyester knitted fabrics than for the polyester and polyester / antistatic polyester knitted fabrics, respectively. Therefore, the research results revealed that the presence of 4% antistatic polyester fibers in cotton and polyester knitted fabrics positively influenced their antistatic behavior and improved or almost did not alter their comfort properties.
- ItemPHYSICO-CHEMICAL PROPERTIES OF MAGNETITES IN NANOCOMPOSITES ON THE TEXTILE BASES(Technical University of Liberec, ) RED’KO, YANA; GARANINA, OLGA; HUDZENKO, NATALIIA; DUDCHENKO, NATALIIA; Technická univerzita v LiberciThe article is devoted to investigation of the physico-chemical properties of magnetites in nanocomposites on the textile bases. It studies of the structure and phase composition of nanocomposite materials on the polyamide and viscose textile bases. It is shown that magnetite particles synthesized in textile material with average sizes of 9.4 nm in viscose textile material and 9.7 nm in polyamide textile material. The influence of synthesis conditions on the size of magnetite nanocrystallites in textile material is established.
- ItemSTUDY OF RIB KNITS COURSEWISE TENSILE PROCESS(Technical University of Liberec, ) Yelina, Tetiana; Halavska, Liudmyla; Bobrova, Svitlana; Lytvynenko, Nataliya; Dzykovych, Tetiana; Technická univerzita v LiberciStretchability of knitwear is one of the most important factors of wearing comfort. Elasticity of knitted structures in course wise direction is usually higher than along wales and often characterized by crosswise shrinkage. Existing methods of knitting program development do not consider the real rate of wale wise shrinkage of rib knitted structure under the course wise extension. During the study experimental research has been carried out to fulfill empirical data on the relationship between samples’ length and width under uniaxial course wise elongation. A range of samples of rib 1×1, 2×2, 3×3, 4×4 and 5×5 knits, made of cotton, bamboo, polyacrylonitrile (PAN), wool/acrylic blend and wool yarn, were stretched with a tensile machine WDW-05M. In the process of stretching the width of each specimen was defined in the moments of extension by 50, 100, 150, 200, 250 and 300 per cent. It has been found that linear approximation can be applied to describe the dependence of specimen’s width on its relative course wise elongation. It was found that the stitch height/width ratio changes unevenly. In the beginning of the process of course wise stretching of a rib knitted structure, it does exist, such an interval, where an increase of the knit’s linear size along the courses occurs without a significant shrinkage in the wale wise direction. It is suggested to name the upper limit of this interval as “unidimensional extension limit” and define it as an extension of a standard (100×50mm) specimen, at which its width decreases by 10%. It was found as well that the value of this index significantly depends on the ribbing variation and much less on the type of raw materials.
- ItemINVESTIGATION OF ANTIMICROBIAL PROPERTIES OF TEXTILE MATERIALS AFTER WASHING(Technical University of Liberec, ) Martirosyan, Irina; Pakholiuk, Olena; Golodyuk, Galyna; Lutskova, Viktoria; Lubenets, Vira; Technická univerzita v LiberciThis work is devoted to the study of antimicrobial properties of cellulose-containing textile materials treated with new safe biocidal products of thiosulfonate structure. A resource-saving method of providing antimicrobial properties to cellulose-containing textile materials is presented. High antimicrobial activity of biocidal products after washing was established. The duration of action and expediency of their use in the textile industry are proved. It is shown that after 10 washes the treated tissues lose only 14-15% of antimicrobial properties.
- ItemFASTNESS PROPERTIES IMPROVEMENT OF FLUORESCENT PIGMENTS(Technical University of Liberec, ) Islam, Md. Khayrul; Mamun Kabir, Shekh Md.; Hosen, Md. Dulal; Islam, Md. Azharul; Technická univerzita v LiberciThe resistance of the material to a change of its color characteristics during exposure to sunlight, rubbing and washing as domestic and laundry and other various ways are referred to as color fastness of dyes or pigments. In this research, 100% cotton and blended fabrics were dyed with fluorescent pigments i.e. Shining Flu Pink-F17 and Papillion Orange-FGRN in exhaust dyeing method. The improvement of color fastness properties, i.e. color fastness to washing, rubbing, perspiration and light were observed with the treatment of using antioxidants and UV-absorbers. There were eight samples of dyed fabrics (Four samples of 100% cotton knit fabric and four samples of 60/40 cottonpolyester blended fabrics) treated with 1% (v/v) of antioxidants i.e. Gallic acid, L-Ascorbic acid and UV absorbers i.e. 2-hydroxy-4 methoxy-benzophenone, 4-4 dimethoxy-benzophenone respectively. The treatment of antioxidant L-Ascorbic acid and UV absorber 4-4 dimethoxy-benzophenone provides satisfactory improvement of fastness properties than other antioxidants and UV absorbers. The results were mainly interpreted in terms of color strength, visual assessment of evenness and fastness ratings.