Katarzyna Lawinska

• Ph.D.
• Director Representative for Research at Łukasiewicz Research Network - Institute of Leather Industry

The goal of the interdisciplinary study presented in this paper was to identify opportunities for innovative applications of mycelium in construction, including housing construction. This solution is gaining significance due to its sustainability and eco-friendliness. Mycelium can be seen as an innovative alternative to traditional building materia...

Diabetic foot syndrome is a syndrome of specific conditions affecting the foot. It is a complication of diabetes. It occurs in 12–25% of patients with diabetes. Untreated, it leads to irreversible deformities and necrosis of the foot, often resulting in amputation. In this study the statistics and consequences of diabetic foot syndrome are describe...

This review presents a recent study on improving energy crops (ECs) in the EU and discusses the potential use of biostimulants to enhance CO2 sequestration processes in these plants. The novelty of this study lies in demonstrating alternative directions for improving productivity and increasing plant yield without relying on introducing new hybrids...

In Poland, the currently used lasts are based on data obtained in the 1970s. These data may be largely out of date, which is due to changes resulting from secular trends, migration changes, and, above all, the fact that there are now tools that enable measurements to be made with significantly higher precision. Such tools are 3D scanners. In this a...

The policy of sustainable development, the need to save natural environmental resources, and the use of waste as raw materials in new production processes allow the use of enzymes in many industries. Enzymatic tanning and chrome tanning are two different methods used in the leather industry to transform raw hides into a durable and usable material....

The prepared scientific monograph entitled The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions is an attempt to further exemplify social innovations by identifying real links between social need and a specific good, service, method and process, in the context of solutions used in the footw...

The prepared scientific monograph entitled The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions is an attempt to further exemplify social innovations by identifying real links between social need and a specific good, service, method and process, in the context of solutions used in the footw...

The prepared scientific monograph entitled The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions is an attempt to further exemplify social innovations by identifying real links between social need and a specific good, service, method and process, in the context of solutions used in the footw...

Abstrakt W pracy oceniono proces granulacji odpadów grabarskich (strużyn garbarskich) połączonych z cementem i sulfogipsem. Do zwilżania surowych materiałów w procesie granulacji wykorzystywano wodny roztwór szkła wodnego w stężeniu 20% i 40% oraz wodę. Zmiennymi parametrami zastosowanymi na wejściu były: rodzaj i masa cieczy oraz różny stosunek su...

The yeast strain Yarrowia lipolytica IPS 21 was tested for its ability to produce the protease enzyme on analytically pure carbon sources as well as on waste carbon sources. It was confirmed that the yeast Y. lipolytica IPS21 can have a higher proteolytic activity in the presence of waste carbon sources in chrome-tanned leather shavings (CTLS) than...

The yeast strain Yarrowia lipolytica IPS 21 was tested for its ability to degrade potentially toxic chrome-tanned leather shavings (CTLS) in a liquid environment. Biological and chemical parameters were monitored during a 48-h period of biotransformation of the protein-rich waste. CTLS was added at a concentration of 0.1–4% (wt/wt) to a modified YP...

This review presents the latest research works detailing granulation processes and granulates, including and based on waste (bio and industrial) as a biofuel/energy source and the possible usage of granulates from and/or based on biochar. The innovative aspect is that the article focuses on the broadest possible environmental aspect understood in m...

In the work presented, effective methods of biomass processing for its reuse in the framework of the circular economy were determined. Based on various sources, a definition of biomass was obtained. The review covers preliminary operations, i.e., screening and grinding, as well as the methods of pressure and non-pressure agglomeration of plant and...

Smart hydrogels, or stimuli-responsive hydrogels, can and should play an important role as excellent drug carriers. These three-dimensional structure materials are composed of crosslinked hydrophilic polymer chains that are able to dramatically change their volume and other properties in response to environmental stimuli, such as pH, temperature an...

The article aims to review the changes that have taken place in the European and global TCLF (Textiles‑Clothing‑Leather‑Footwear) sector over the last decade from the perspective of new requirements of pursuing a circular and, especially in recent years, a digital economy. The paper describes the changes in the components of this industry (formerly...

This paper presents methods for managing waste produced by the leather industry, including tanning shavings derived from chrome tanning technologies and collagen preparations. Shavings were classified according to their shape (in accordance with Zingg’s shape classification). The content of individual elements was determined, together with the cont...

The raw trimming waste from the leather industry is considered potential hazardous waste as a consequence of the chrome tanned leather process. On the other hand, leather waste contains a large amount of precious protein – collagen, which has many uses. Nowadays, collagen preparations obtained from leather waste are available on the market. This pa...

In this paper, microbiological and chemical analysis were carried out in the case of bamboo textile materials and leathers modified by bamboo extract at the tanning stage. Microbiological resistance was examined for some fungi, i.e.: Aspergillus niger, Trichophyton men-tagrophytes and Candida albicans and some bacteria strains: Escherichia coli, Sa...

The presented study assessed the effect of bovine (BC) and fish (FC) waste-derived collagen, poly(hexamethylenebiguanide) hydrochloride (PHMB) and waste dolomite on the emergence of seedlings, growth and development of pea (Pisum sativum L. ‘Lasso’) plants. The seed coating method was used to apply the binding agents. Some of the studied agents wer...

This paper presents simulation and bench test results for a special type of centrifugal pump that enables the transport of dispersive foaming liquids and simultaneous separation of the liquid phase. During the design phase, CFD (Computer Fluid Dynamics) simulations were performed using Ansys Fluent. The simulations covered changing the operating pa...

This work concerns non-pressure granulation of mineral materials used for the production of agricultural fertilizers for soil deacidification. In order to expand the product range of Nordkalk Poland sp. z o. o. located in Poland, the granulation conditions of the gypsum–lime mix were examined with the use of various granulation methods. The process...

This paper presents the results of research on the granulation process of leather industry waste, i.e., tanning shavings. It is economically justified to granulate this waste together with mineral additives that are useful in the processes of their further processing. Unfortunately, the granulation of raw, unsorted shavings does not obtain desired...

The work presents a comparison of methods of granulating waste – tannery shavings – from the leather industry. This waste is often used for the production of leather composites, but it creates a number of problems in transport and storage. It seems that granulation of this waste together with mineral additives needed in their further processing is...

The paper presents physico-mechanical and hygienic parameters testing results of fabrics manufactured from bamboo cellulose fibres (100%) and their combination with cotton fibres (50/50%), as well as treated with: anti-pilling finish, anti-pilling and anti-shrinking finish, and dirt-repellent finish. They were evaluated on implementation in the foo...

Carbonation lime mud is a by-product formed during the production of sugar in the process of raw beetroot juice purification. On average, during one campaign, over 12,000 tons of carbonation lime mud is obtained in the operation of one sugar production plant. It is stored in prisms, which negatively affects the environment. The chemical properties...

In this paper the authors describe the creation of new material packages based on bamboo textile materials for upper shoe material. These packages were made up of three layers: an inner layer in the foot skin neighbourhood, outer layer – which contacted with the surrounding environment, and a medium layer – polyurethane foam of a thickness of 2 mm....

W pracy przedstawiono wyniki badao parametrów fizyko-mechanicznych i higienicznych tkanin wyprodukowanych z celulozowych włókien bambusowych (100%) oraz z mieszanki tych włókien z włóknami bawełny (50/50%), jak też poddanych wykończeniu apreturami: brudoodporną, przeciwpillingową oraz przeciwpillingową i przeciwkurczliwą. Oceniano je pod kątem wdro...

This paper analyses the possibility of using tannery shavings as a basis for new composite materials with specified properties. The new material was made by combining tannery shavings with an adhesive medium. Mineral additives, such as dolomite, kaolin and bentonite were used in an amount of 5% and 10% of the total mass of shavings as a filler. In...

The carbon footprint of a product (CFP) approach is one of the most important tools which gives a possibility to estimate the total amount of greenhouse gas (GHG) emissions in the whole life cycle of consumer goods. A lot of attempts have been undertaken to elaborate methodology for CFP calculation. Because GHG emissions may occur at each stage of...

In this paper, the results of research on the thermal insulation properties of textile and leather materials are presented. These materials were used in order to develop innovative footwear upper combinations with higher hygienic properties. Outer leather materials (L1, L2) and textile (T1, T2, T3, T4) were joined around the edges by stitching with...

The subject of this paper is improvement in the growth and yield of three different types of legumes and rape in drought conditions by coating seeds with hydrolysed collagen from tanning waste. In addition, the impact of various additives in the seed shell on the growth of the plant was investigated. The encapsulation process of seeds was conducted...

The tests presented describe a method of pressureless agglomeration of waste shavings derived from chrome tanning processes with the addition of gypsum obtained from the Bełchatów Power Plant, from the filtering of sulphur compounds from exhaust gas and widely available dolomite. The aim of the granulation process is to minimise the environmental i...

As part of the work, preliminary tests were made of textile materials with bamboo fibres for elements of children’s footwear. The need to expand the range of materials which can be used in children’s footwear is dictated by the specific anatomic structure of the child’s foot during the first years of life. The research was focused on the area relat...

The research presented in this paper focuses on determination of the physical and mechanical properties of composites made on the basis of natural polymer, i.e., crushed collagen fibres which are waste from the leather industry. Mineral supplements such as dolomite, bentonite and kaolin were the filling of the composite produced. Their application...

Article is devoted to sieve holes blocking and describes the impact of the content of blocking grains in the feed on this phenomenon. The process of screen blocking involves grains of varying size being blocked in sieve holes. This is a phenomenon that significantly decreases the screening process capacity. The screen blocking coefficient f is appl...

The tests have been carried out on granulation of fly ash that may significantly reduce the consequences of its storage and transport harmful to the environment, mainly secondary dusting. Granulation was conducted using a disk granulator. The experiments involved the evaluation of a loose additive (bentonite) impact, the analysis of moisture conten...

The analysis of mechanisms which affect the formation of agglomerates and determine the granulation process in a broad sense encounters difficulties related to the many ways of the formation of granules. The aim of the study was to perform a qualitative and quantitative analysis of granulation mechanisms with special reference to agglomerates’ disi...

Collagen hydrolyzate from tanning waste was used as a component of coats formed on peat, broad bean and soybean seeds by disc granulation (with fungicide and dolomite addn.) and tested for stability, improved plant growth and increased resistance to drought after seeds were sown into in wet soils under constant climatic conditions (temp. 30°C, humi...

Conical and cascade drum screens with continuously varying unequal sieve diams. were used for classifying sand and basalt aggregate under rotation around a horizontal axis with a slight deviation from this direction. The layer of granular material fed onto the sieve took a complex movement inside the drum and was subjected to a changing centrifugal...

The creation of new preparations with a wide range of biocidal action on the pathogenic microorganisms, long-term protective action and, at the same time, with low toxicity for humans and safe for the environment, is a relevant direction in the development of modern technologies in the production of leather materials. In the present article we repo...

Main objective of screening is to separate a group of grains, which dimensions fall within the specified limits, from the given feed. A large number of sieve and screening machines designs is available. During screening of granular materials in industry, sieve holes are often blocked. The phenomenon of screen blocking involves grains of varying siz...

This paper addresses the process of sieve holes blocking taking place while screening fine-particulate materials and provides an analytical description of the phenomenon. Empirical tests performed as part of this research provided dependences specifying the parameters of sieve holes blocking that could be applied in practice. The process of sieve h...

The paper presents the results of the screening process by rotation of a conical sieve. It is a machine sieve, wherein the sieve has the shape of a cone and is rotating around a vertical axis or slightly inclined from the vertical. The layer of granular material fed to the sieve takes the complex movement of the spiral – both in the radial and circ...

Streszczenie Zbadano i porównano niektóre parametry chemiczne, fizyko-mechaniczne i higieniczne skór obuwiowych (wierzchnich i podszewkowych) z wypełnieniem opartym na naturalnych kompozytach mineralnych: zeolicie (MDZ), montmorylonicie (MDM) oraz ich mieszaninie (MDM/MDZ) z wartościami takich samych parametrów wyznaczonych dla skór odniesienia ("...

Streszczenie Niniejsza praca jest poświęcona metodom i urządzeniom służącym do oczyszczania sit w maszynach przesiewających. Podczas przesiewania różnych materiałów ziarnistych, w szczególności drobno i bardzo drobno uziarnionych, dochodzi do zatykania otworów sit przez tzw. ziarna trudne, których wymiar charakterystyczny jest zbliżony do wymiaru o...

This paper is devoted to drum and vibrating screens and addresses their possible application in the process of screening municipal and mineral waste. The basis for this article are conclusions from a relevant research that has been conducted for many years at the Department of Process Equipment of the Lodz University of Technology. The authors desc...

The aim of this paper is to describe the process of sieve holes blocking. A series of tests and their results revealed a dependence describing the value of an average screen blocking coefficient as a function of two main factors affecting the process. These parameters are the toss indicator and the content of difficult-to-screen particles in the fe...

The purpose of this article is to find a mathematical model describing the experimental course of the screen blocking coefficient over time. The process of blocking the sieve holes is unfavourable, since it reduces the flow rate of the lower size fraction through a sieve under scrutiny. A description of the process of sieve holes blocking by blocki...

Physicochemical Problems of Mineral Processing w w w . m i n p r o c . p w r . w r o c . p l / j o u r n a l / ISSN 1643-1049 (print) Abstract. This paper presents the results of considerations concerning the ratio of blocking of screen holes and the importance of particular independent variables affecting the process of blocking of sieve holes. Th...