INCREASE IN SORPTION ABILITY OF BACTERICIDAL TEXTILE MATERIALS

2018 ◽  
Vol 59 (1) ◽  
pp. 72
Author(s):  
Z.A. Askhabova ◽  
O.V. Kozlova
Keyword(s):  
Textile Material ◽  
Textile Materials ◽  
Sorption Ability ◽  
Bactericidal Properties ◽  
Mineral Additives

The influence of various factors on the change in the sorption ability of textile material depending on the nature of the material, the composition of biocomposite, type of mineral additives was studied. Possible ways of increase in sorption of the textile materials possessing bactericidal properties were shown.

scholarly journals МОДЕЛЮВАННЯ ПРОЦЕСУ ТЕРТЯ В ТЕКСТИЛЬНИХ МАТЕРІАЛАХ

2020 ◽  
Vol 144 (2) ◽  
pp. 45-53
Author(s):  
Н. П. Супрун ◽  
М. Л. Рябчиков ◽  
І. О. Іванов
Keyword(s):  
Mechanical Properties ◽  
Coefficient Of Friction ◽  
Textile Material ◽  
Structural Elements ◽  
Friction Process ◽  
Textile Materials ◽  
Factors Influencing ◽  
The Coefficient Of Friction ◽  
Properties Of Materials ◽  
Main Factors

Create a model for determining the coefficient of friction of textile materials to identify the main factors influencing the process of friction, taking into account the structural and mechanical properties of materials. Modeling of friction process in textile materials as a combination of adhesive and elastic phenomena. Roughness of solid bodies and the main parameters of roughness, such as the height of micro-irregularities, their pitch, sharpening, etc. described in many standards and scientific papers. However, the modeling of the friction process in such systems is very complicated due to the irregularity of distribution of microroughness. The analysis of literature data showed that the surface roughness of textile materials is an important and effective factor in predicting the tactile properties of products for various purposes. Estimation of surface roughness is usually carried out using subjective and objective methods, and the latter can be contact and non-contact. The paper develops a model for determining the coefficient of friction of textile materials to identify the main factors influencing the friction process, taking into account the structural and mechanical properties of materials. Friction force is presented as a combination of two main factors. The first is the elastic resistance to deformation, the second is the adhesive resistance to compression of the structural elements of the material. The main parameters influencing the coefficient of friction of textile fabrics - modulus of elasticity of structural elements, their geometrical parameters - surface density of textile material, linear density of structural elements are established. The obtained results allow to qualitatively predict the friction forces of a textile material with known parameters of its structural elements, as well as to normalize these parameters to create materials with specified friction indices. The obtained results make it possible to select the threads that form the textile material, according to the values of the modulus of elasticity, thickness, location density to ensure the minimum friction force.

scholarly journals Using of fluorinated aluminum silicate in the process coloring of textile materials with pigments

2018 ◽  
Vol 80 (2) ◽  
pp. 307-312
Author(s):  
E. L. Vladimirtseva ◽  
L. V. Sharnina ◽  
A. A. Mironova
Keyword(s):  
Water Soluble ◽  
Wool Fibre ◽  
Aluminum Silicate ◽  
Aluminum Fluoride ◽  
Industrial Emissions ◽  
Textile Materials ◽  
Limited Solubility ◽  
Sorption Ability ◽  
Soluble Aluminum ◽  
Exhaust Dyeing

The aim of the work is to search for new drugs and technologies for processing textile materials to achieve high quality products with minimum costs and practical absence of harmful industrial emissions. Studies on the use of insoluble aluminum silicate in practical application in the textile industryare conducted at the Ivanovo State University of Chemical Technology. The experience of using silicates for modifying the properties of wool fibre and purification of exhaust dyeing solutions from direct, active and acidic dyes has been accumulated. The article considers the possibility of using fluorinated aluminum silicate (xAl2O3 * ySiO2 * zAlF3), which is a by-product in manufacture of aluminum fluoride, when coloring textile materials with pigment dyes. The uniqueness of this preparation lies in the fact that fluorinated aluminum silicate combines two fractions: insoluble (silicon and aluminum oxides) and soluble (aluminum fluoride). Aluminum fluoride has a limited solubility in water (0.41% by weight at 25 ° C), but is catalytically active and is used in a number of chemical processes as a catalyst. Due to the presence of water-soluble aluminum fluoride, fluorinated aluminum silicate has an acidic reaction. This powder is finely dispersed and its insoluble part has a white color, so it can be used as filler for blending printing inks and a catalyst for the dye fixing process on the fibre. The color and strength characteristics of the obtained stains convincingly prove that the fluorinated aluminum silicate can successfully replace commercially available catalysts. An additional positive feature is an increase in the shelf life of the finished printed composition. The limited solubility of aluminum fluoride, on the one hand, and its distribution in the structure of insoluble alumina and silicon oxides, on the other, makes the preparation catalytically inactive at room temperature, which positively affects the stability of the ink. Another option for the use of fluorinated aluminum silicate in combination with pigments can be purification of exhaust dyeing solutions. In this case, the high sorption activity of fluorinated aluminum silicate with respect to pigments plays a leading role. If fine dispersed fluorinated aluminum silicate is placed in the aqueous dispersion of the pigment, then, settling, it will capture the dye. Within 24 hours, the dispersion completely discolored. At the same time, the settled powder acquires a pigment tint. The results of the research presented in this paper make it possible to talk about the technological possibilities of using fluorinated aluminum silicate in the coloring of textile materials with pigments in which both its sorption ability and catalytic activity are in demand.

scholarly journals Development of Smart Textile Materials with Shape Memory Alloys for Application in Protective Clothing

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 689 ◽  
Author(s):  
Grażyna Bartkowiak ◽  
Anna Dąbrowska ◽  
Agnieszka Greszta
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Smart Materials ◽  
Protective Clothing ◽  
Radiant Heat ◽  
Textile Material ◽  
Material System ◽  
Molten Metals ◽  
Textile Materials ◽  
Smart Textile

The latest directions of research on the design of protective clothing concern the implementation of smart materials, in order to increase its protective performance. This paper presents results on the resistance to thermal factors such as flames, radiant heat, and molten metals, which were obtained for the developed smart textile material with shape memory alloys (SMAs). The laboratory tests performed indicated that the application of the designed SMA elements in the selected textile material system caused more than a twofold increase in the resistance to radiant heat (RHTI24 = 224 s) with an increase of thickness of 13 mm (sample located vertically with a load), while in the case of tests on the resistance to flames, it was equal to 41 mm (sample located vertically without a load) and in the case of tests on the resistance to molten metal, it was 17 mm (sample located horizontally).

scholarly journals Ultrahydrophobic Textiles Using Nanoparticles: Lotus Approach

2008 ◽  
Vol 3 (4) ◽  
pp. 155892500800300 ◽  
Author(s):  
Karthik Ramaratnam ◽  
Swaminatha K. Iyer ◽  
Mark K. Kinnan ◽  
George Chumanov ◽  
Phillip J. Brown ◽  
...  
Keyword(s):  
Contact Angle ◽  
Water Contact Angle ◽  
Contact Angle Hysteresis ◽  
Water Repellency ◽  
Textile Material ◽  
Water Repellent ◽  
Complete Wetting ◽  
Water Contact ◽  
Lotus Effect ◽  
Textile Materials

It is well established that the water wettability of materials is governed by both the chemical composition and the geometrical microstructure of the surface.1 Traditional textile wet processing treatments do indeed rely fundamentally upon complete wetting out of a textile structure to achieve satisfactory performance.2 However, the complexities introduced through the heterogeneous nature of the fiber surfaces, the nature of the fiber composition and the actual construction of the textile material create difficulties in attempting to predict the exact wettability of a particular textile material. For many applications the ability of a finished fabric to exhibit water repellency (in other words low wettability) is essential2 and potential applications of highly water repellent textile materials include rainwear, upholstery, protective clothing, sportswear, and automobile interior fabrics. Recent research indicates that such applications may benefit from a new generation of water repellent materials that make use of the “lotus effect” to provide ultrahydrophobic textile materials.3,4 Ultrahydrophobic surfaces are typically termed as the surfaces that show a water contact angle greater than 150°C with very low contact angle hysteresis.4 In the case of textile materials, the level of hydrophobicity is often determined by measuring the static water contact angle only, since it is difficult to measure the contact angle hysteresis on a textile fabric because of the high levels of roughness inherent in textile structures.

scholarly journals Biopolymer chitosan: Properties, interactions and its use in the treatment of textiles

2004 ◽  
Vol 58 (10) ◽  
pp. 457-469 ◽  
Author(s):  
Dragan Jocic ◽  
Tatjana Topalovic
Keyword(s):  
Aqueous Solutions ◽  
Special Interest ◽  
Biological Properties ◽  
Textile Material ◽  
Dyeing Properties ◽  
Textile Materials ◽  
Physico Chemical

The biopolymer chitosan is obtained by the deacetylation of chitin, the second most abundant polysaccharide in nature, after cellulose. It is becoming an increasingly important biopolymer because it offers unique physico-chemical and biological properties. Due to its solubility, chitosan allows processing from aqueous solutions. This review provides information on important chitosan properties, as well as on some interactions that are of special interest for chitosan application. It summarizes some of the most important developments in the use of chitosan in the treatment of textile materials. Special emphasis is given to improved dyeing properties of the textile material treated with chitosan.

scholarly journals ASPECTS OF DEVELOPMENT OF FIREPROOF COMPOSITIONS FOR STRUCTURES WITH TEXTILE FUEL PRODUCTS

2021 ◽  
pp. 93-101
Author(s):  
Yu. Tsapko ◽  
◽  
А. Tsapko ◽  
O. Bondarenko ◽  
M. Suhanevich ◽  
...  
Keyword(s):  
Fire Protection ◽  
Natural Fibers ◽  
Experimental Studies ◽  
Fire Retardant ◽  
Armed Forces ◽  
Textile Material ◽  
Textile Materials ◽  
Coke Layer ◽  
Sample Damage ◽  
Textile Products

The results of experimental studies on the effectiveness of fire protection of easily erected structures made of flammable textile products are presented. An analysis of the directions of use of easily erected structures made of flammable textile products indicates a steady trend towards an increase in their use during the temporary fulfillment of certain tasks of the Armed Forces of Ukraine and units of the. During the heating of such structures, ignition and rapid spread of fire are possible. The operating statistics for easily erected structures have found a low level of safety due to the use of natural fibers (e.g., linen, cotton and blends), which are highly sensitive to heat and fire. Reduction of combustibility and the development of non-combustible and non-combustible materials is one of the main directions for preventing fires and solving the problem of expanding the scope of these materials. Treatment with fire protection means significantly affects the spread of the flame, allows you to reduce the smoke-generating ability and heat release significantly. After the test, it can be seen that the sample of the textile material sustains spontaneous combustion for more than 5 s; sample damage is more than 150 mm. After the test, it is clear that the sample of textile material does not support self-combustion for no more than 5 s; sample damage is no more than 100 mm. The inhibition of the process of ignition and flame propagation for such a sample is associated with the decomposition of fire retardants under the influence of temperature with the absorption of heat and the release of incombustible gases (nitrogen, carbon dioxide), a change in the direction of decomposition towards the formation of incombustible gases and a hardly combustible coke residue. This leads to an increase in the thickness of the coke layer and inhibition of the heat transfer of the high-temperature flame to the material, which indicates the possibility of the transition of textile materials during processing with a fire retardant composition to materials that are non-combustible, which do not spread the flame by the surface.

scholarly journals ДОСЛІДЖЕННЯ ВІДБИТТЯ УЛЬТРАЗВУКОВИХ ХВИЛЬ ВІД ОДНОШАРОВИХ ТЕКСТИЛЬНИХ ПОЛОТЕН ТА ДВОШАРОВИХ ТЕКСТИЛЬНИХ ПАКЕТІВ ІЗ РІЗНИМ РОЗМІРОМ ПОР

2021 ◽  
Vol 148 (4) ◽  
pp. 87-97
Author(s):  
В. Г. Здоренко ◽  
С. В. Барилко ◽  
С. М. Лісовець ◽  
Д. О. Шипко ◽  
В. М. Василенко ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Spatial Structure ◽  
Single Layer ◽  
Ultrasonic Waves ◽  
Textile Material ◽  
Total Thickness ◽  
Complex Reflection Coefficient ◽  
Textile Materials ◽  
Complex Reflection ◽  
Textile Fabrics

Investigate the influence of single-layer textile fabrics and two-layer textile bags on the parameters of ultrasonic waves that interact with them. In particular, to investigate the dependence of the complex reflection coefficient of ultrasonic waves on the total thickness and basis weight of textile material. Methodology. The analytical part of the study consisted in obtaining an expression for the complex reflection coefficient of ultrasonic waves and in modeling its dependence on the thickness and basis weight of different textile materials. The proposed method of control of these technological parameters consists in irradiation of textile materials with ultrasonic waves with the subsequent reception of the waves reflected from textile material, their digitization and carrying out the computer analysis of the received results. Findings. Analytical expressions are obtained that relate the thickness and basis weight of single-layer canvases, two-layer textile bags with a complex spatial structure, on the one hand, and the reflection coefficient of ultrasonic waves from such materials, on the other hand. Analytical calculations were made and mathematical modeling was performed based on the results of theoretical research. Originality. As a result of theoretical studies, it is determined how the thickness and properties of each  of  the  two layers  of porous textile  materials  affect  the  reflection of  ultrasonic  waves.  This  makes it possible on the basis of ultrasonic measurements to determine both the total thickness of textile materials and their basis weight with the accuracy required for their production.  Practical  value.  The  obtained  analytical  dependences  are  another  step  towards  the  creation  of control and measuring equipment to determine the properties of single-layer textile fabrics and two-layer porous  textile  bags.  This  will  help  determine  the  overall  thickness  and  basis  weight  of  materials  with  a complex spatial structure.

scholarly journals Textile Materials Modified with Stimuli-Responsive Drug Carrier for Skin Topical and Transdermal Delivery

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 930
Author(s):  
Daniela Atanasova ◽  
Desislava Staneva ◽  
Ivo Grabchev
Keyword(s):  
Biological Fluids ◽  
Drug Carrier ◽  
Biologically Active ◽  
Textile Material ◽  
Stimuli Responsive ◽  
Textile Materials ◽  
Antimicrobial Substances ◽  
Stimuli Responsive Polymers ◽  
Materials Used ◽  
Active Substances

Textile materials, as a suitable matrix for different active substances facilitating their gradual release, can have an important role in skin topical or transdermal therapy. Characterized by compositional and structural variety, those materials readily meet the requirements for applications in specific therapies. Aromatherapy, antimicrobial substances and painkillers, hormone therapy, psoriasis treatment, atopic dermatitis, melanoma, etc., are some of the areas where textiles can be used as carriers. There are versatile optional methods for loading the biologically active substances onto textile materials. The oldest ones are by exhaustion, spraying, and a pad-dry-cure method. Another widespread method is the microencapsulation. The modification of textile materials with stimuli-responsive polymers is a perspective route to obtaining new textiles of improved multifunctional properties and intelligent response. In recent years, research has focused on new structures such as dendrimers, polymer micelles, liposomes, polymer nanoparticles, and hydrogels. Numerous functional groups and the ability to encapsulate different substances define dendrimer molecules as promising carriers for drug delivery. Hydrogels are also high molecular hydrophilic structures that can be used to modify textile material. They absorb a large amount of water or biological fluids and can support the delivery of medicines. These characteristics correspond to one of the current trends in the development of materials used in transdermal therapy, namely production of intelligent materials, i.e., such that allow controlled concentration and time delivery of the active substance and simultaneous visualization of the process, which can only be achieved with appropriate and purposeful modification of the textile material.

scholarly journals Triclosan applications for biocidal functionalization of polyester and cotton surfaces

2020 ◽  
Vol 15 ◽  
pp. 155892502094010
Author(s):  
Mehmet Orhan
Keyword(s):  
Textile Industry ◽  
Antibacterial Properties ◽  
Gas Chromatography Mass Spectrometry ◽  
Textile Materials ◽  
Research Fields ◽  
Bactericidal Properties ◽  
Spanish Flu ◽  
Medical Textile ◽  
Inhibition Zones ◽  
Antibacterial Functionalization

For 20 years, antibacterial functionalization has been one of the most attractive research fields in the textile industry. Nowadays, globalization has spread the microorganisms everywhere and produced many epidemics and pandemics such as smallpox, cholera, tuberculosis, yellow fever, Spanish flu, and coronavirus. The textile materials treated with triclosan would be a strong alternative to obtain antibacterial function against microorganisms for the medical applications, such as face masks, lab coats, and wound dresses. This study aimed to investigate the characterization, antibacterial properties, and durability of triclosan on polyester, polyester/cotton, and cotton surfaces. The pure triclosan and presence of triclosan in solutions were detected by gas chromatography–mass spectrometry chromatograms. It can be seen that surfaces were homogeneously covered by triclosan on scanning electron microscope micrographs, and there were new bands on Fourier transform infrared spectra after treatments. Large inhibition zones around all surfaces were observed, and antibacterial activity slightly increased depending on increasing chemical concentrations. The samples demonstrated strong biocidal activity to bacteria for 3 h. They lost their antibacterial properties after washing, but they showed good antibacterial (bactericidal) properties and satisfactory durability to washes. The results show that triclosan is a highly effective and durable chemical on polyester and cotton surfaces for medical textile applications.

scholarly journals Influence of Fusing Conditions on the Change of Colour Shade in the Production of Clothing

Tekstilec ◽  
2020 ◽  
Vol 63 (3) ◽  
pp. 233-238
Author(s):  
Snezhina Angelova Andonova ◽  
Keyword(s):  
Mathematical Model ◽  
Process Parameters ◽  
Quality Criterion ◽  
Polymer Binder ◽  
Textile Material ◽  
Textile Materials ◽  
Main Factors ◽  
The Individual ◽  
Selection Of

One of the major technological processes in the sewing industry is the process of thermo-mechanical fusing (TMF). This is a process in which the main textile material connects to an additional textile material (interlining) through a polymer binder. This ensures better resistance to the shape of the individual parts of the sewing article. The main factors that influence the process are the temperature of the pressing plates, and the pressure and the duration of the process. The process has not been sufficiently studied and therefore it is important to identify a function that connects the output parameter to the input factors of the TMF process. It is especially important to choose an optimisation criterion. After numerous preliminary studies, some changes in textile materials (TM) after TMF have been observed. For example, the incorrect adjustment of process parameters (e.g. pressure, temperature and duration) changes the colour shade of TM after TMF. This change in the colour shade of the individual parts will impair the quality of the sewing product as a whole. This encourages the selection of the quality criterion. In light of the latter, the purpose of this paper was to derive a mathematical model of the TMF process that describes the influence of input factors on the quality criterion: changing the colour shade of TM after TMF.

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