Jana Šašková

Technical University of Liberec | TUL · Department of Textile Chemistry

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The development of environmentally friendly, multifunctional conductive membranes is an ideal candidate for future new electronic components. Some cellulose-based electronic sensors have been studied, such as pressure sensors, hydrothermal sensors, flexible sensors, optoelectronic devices, and electrochemical energy storage, etc. However, there are...

The cellulose/polyvinyl alcohol (PVA)/expanded graphite (EG) 3D porous foam, which has wide application prospects in cost-effective dye removal, was prepared by physical crosslinking and foaming technology. The prepared foam material has an obvious 3D network and porous structure, exhibiting excellent removal efficiency for methylene blue (MB) in a...

The aim of the present research work was to develop halogen and formaldehyde-free, durable flame retardant fabric along with multifunctional properties and to find the optimal conditions and parameters. In this research, zinc oxide nanoparticles (ZnO NPs) were grown onto 100% cotton fabric using the sonochemical method. Zinc acetate dihydrate (Zn(C...

This research work was carried out for the green in-situ synthesis of ZnO nanoparticles onto the 100% cotton fabric. Zinc nitrate hexahydrate [Zn(NO3)2.6H2O] was used as precursor and the Neem (Azardirachta Indica) leaf extract was used as reducing agent. Scanning electron microscopy (SEM) and X ray diffraction (XRD) were done to investigate the su...

The cellulose/polyvinyl alcohol (PVA)/expanded graphite (EG) 3D porous foam, which has wide application prospects in cost-effective dye removal, was prepared by physical crosslinking and foaming technology. The prepared foam material has an obvious 3D network and porous structure, exhibiting excellent removal efficiency for methylene blue (MB) in a...

At present, electrospinning technology is a versatile and simple method for generating nano-scale membranes, and it provides attractive solutions in solving environmental problems and many energy problems. However, such films generally have low mechanical properties which limit their use in industry. Nanocellulose with excellent mechanical properti...

The use of ZnO in textile industry is growing rapidly due to its unique functional properties such as antibacterial, self cleaning, UV protection, photo catalytic activity etc. The aim of this research work was in-situ deposition of ZnO on cotton fabrics by sono chemical method. The Zinc nitrate hexahydrate [Zn(NO3)2.6H2O] and sodium hydroxide (NaO...

Zinc oxide nanoparticles (ZnO NPs) have acquired great significance in the textile sector due to their impressive efficiency and multifold utilization, such as antimicrobials, UV protection, photo catalytic activity, and self-cleaning. The aim of this work is in-situ growth of ZnO NPs on 100% cotton fabrics with the one-step hydrothermal method for...

Zinc oxide (ZnO) nano particles have great importance in textile industry, because of remarkable efficiency and multiple applications such as antibacterial, UV protection, self-cleaning etc. The aim of this research work was in situ growth of ZnO nano particles on 100 % cotton fabrics with the help of ultrasonic acoustic waves. Zinc nitrate hexahyd...

Nanofibers are high-tech materials with excellent properties and there are used in many applications. One of wrong properties of nanofibers are low stability against rubbing. In this study is theoretically analysed mechanism of destruction of nanofibers mats by rubbing. Some methods to increase the mechanical stability of nanofibers are presented.

As the UV radiation is harmful to human skin, the aim of this research was to develop UV protective fabrics. The neem tree (Azadirachta indica) has many compounds in its every part. These compounds possess UV protective properties. Neem tree (Azadirachta indica) leaves were ball milled to obtain fine powder. Particle size of powder was analyzed by...

Cellulose nanoparticles have been known for decades. Their potential lies in the easy modifiability of their properties by reactively bounded systems that can carry these properties. The topic of this work is focused on the preparation of cellulose nanoparticles and it will be investigated how the coloring of these particles can be achieved.

At present, phosphorescent materials are used in a variety of fields from medical applications to common subjects - such as children's toys glows in the dark. Our research deals with the use of phosphorescent materials in the garment industry, especially for use in clothes with high visibility. From this point of view, the lifetime (glowing time) o...

Start Optical fibers are one category of specialty fibers originally developed for light transmission (fiber optic) and information (optical cables). The fiber consists of a core surrounded by a cladding. Standard polymer optical fiber (POF) is transferring light across its axis by the mechanism of total internal reflection. In the side emitting pl...

Maghemite glass fibre nanocomposite with excellent magnetic and adsorption properties was successfully developed from nontoxic and eco-friendly reagents by thermal decomposition approach. The developed nanocomposite was utilized in adsorption of methylene blue which follows Freundlich adsorption isotherm. The excellent value of adsorption capacity...

This work is an example of textile applications of cellulose nanoparticles and nanocrystals. There are a range reasons why usage of nanocellulose is becoming more important - It is a biodegradable material with excellent ratio surface/volume, it has high tensile strength and good insulating properties. Materials based on nanocellulose could be used...

Smart clothes can be described as textiles that change their behavior under some external factors (stimulants). The response of the smart cloth can be passive (just as a sensor) or active (where a combination of sensing and another reaction takes place). The materials involved in these textiles are crucial for many applications, especially for heal...

Highly photo active pure anatase form of TiO2 nanoparticles with average particle size 4 nm have been successfully synthesized by ultrasonic acoustic method (UAM). The effects of process variables i.e. precursors concentration and sonication time were investigated based on central composite design and response surface methodology. The characteristi...

Cotton-titania nanocomposites with multifunctional properties were synthesized through ultrasonic acoustic method (UAM). Ultrasonic irradiations were used as a potential tool to develop cotton-titania (CT) nanocomposites at low temperature in the presence of titanium tetrachloride and isopropanol. The synthesized samples were characterized by XRD,...

The applications of color changes in an object can be observed frequently in our daily life. These changes may take place either from colorless to colored or from one color to another. Photochromic textiles have been used in the sensible materials (sensor) in the smart textiles and esthetic materials in the fashion industry due to the color changin...

9 observers visually assessed the whiteness of 10-selected white textile samples by using pair comparison method. Visual ranking of these samples was computed from 2025 individual judgments. Tristimulus values based on measured total radiance factors of the samples are calculated for the CIE1964 supplementary standard colorimetric observer. Visual...

In this study, CO2 laser treatment was used as a novel method for creating antibacterial properties on glass mat. Different metallic salts such as CuO, ZnO and AgNO3 were even applied on surface of glass fiber mat, then irradiated with the laser light beam (100 μs). Metal particles were deposited on the surface of samples, and the antibacterial has...

CMC is a hydrophylic polymer with huge potential in medical applications. An increasingly common application is the use of silver nanoparticles for antimicrobial coatings, wound dressings, and biomedical devices. This study presents a preparation of special structures containing nanoparitcles of silver in a polymeric matrix, which is able to absorb...

Reactive dyes are called according the ability to create covalent bond between dyestuff and fibre polymer. The dye can react with hydroxyl groups in dyebath during cellulose dyeing process and lose ability to bond with fibre. The description of behaviour of hydrolysed reactive dye is the main aim of this contribution. Firstly, the ratio between act...

Aramids are a family of nylons, including Nomex and Kevlar. Chemical structure of Nomex and Kevlar fibers can be described by the common formula in Fig. 1 a 2. In Kevlar the aromatic groups are all linked into the backbone chain through the 1 and 4 positions (called paralinkage). Kevlar has high strength, high modulus (stiffness), toughness and the...

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