PurposeThe purpose of the work is development a novel of hydro-vibration technology for the formation of hats from fabrics, which will expand the functionalities of application of various fabrics.Design/methodology/approachThe work is based on a novel technology of forming hats from different fabrics with the use of liquid-active working environment (LAWE). This hydro-vibration technology is characterized by high efficiency, productivity, manufacturability and potential opportunities when compared to existing technologies. This allows expanding its range of applications and increase functionality.FindingsIn the article, hydro-vibration technology is developed for the formation of hats from fabrics. As a result of the experiment, regression dependences of the shape stability coefficient on the formation factors having a close correlation were obtained. The performed optimization allowed determining the optimal values of technological parameters of the vibroforming process from fabrics: LAWE pressure 0.26 MPa, vibration frequency LAWE 4.3 Hz, forming time 74 s.Practical implicationsThe use of developed hydro-vibration technology has great practical significance in the textile industry. This technology increases labor productivity and reduces the cost of production of hats due to its high efficiency. Increased efficiency is provided by the use of special equipment, methods and optimal parameters of the hats formation. With sufficient refinement, the developed technology can be applied to other technological processes.Originality/valueOriginality of the work is using liquid-actin working environment at vibroforming of heads of headdresses from fabrics. It is determined that the use of LAWE is effective in the formation of hats. To ensure maximum plasticization of textile fibers in the fabric of the part and increase the force field, it is developed a novel hydro-vibration technology of forming the heads of hats from fabrics.

The article examines the ways to solve the problem of developing a scientific basis for obtaining composite materials of different functional purposes from oilseed flax fibers. The paper covers theoretical and experimental research in the area of processing flax raw materials. The purpose of the study is to provide scientific substantiation of developing the technologies for obtaining fillers to reinforce composite materials. In order to do it, we performed modification of oilseed flax fiber and developed technologies for processing oilseed flax straw with regulated technological and performance characteristics. The article also presents the results of the research on determining causes of low wettability of oilseed flax bast. In order to find out the causes of low bast wettability, we conducted research on examining chemical composition and anatomy of straw stems. The formulation for preparing the fiber aimed to be used as a filler for reinforcement of composite materials is offered. The study suggests evaluation of the quality of composite materials produced on the basis of using modified oilseed flax fibers.

Background. A promising direction of ensuring the rational nutrition of the country’s population is the creation of functional goods from natural raw materials, safe for humans, which should be affordable, nutritious and useful. Such natural raw materials with great potential for the production of food products for a wide range of applications are technical hemp, namely their seeds. Analysis of recent research and publications hasproven the biological and physiological value of food products from technical hemp seeds. It identified the need for a systematic analysis of the nutritional value and economic efficiency of technical hemp seed products in comparison with similar products from other crops. The aim of the article is a comparative analysis of the nutritional value and economic efficiency of technical hemp seed products in relation to similar products from other crops. Materials and methods. Thegeneral scientific analytical method, the method of systematization, generalization, comparative, induction and deduction, graphical and statistical analysis are used. The empirical basis for comparing the nutritional value of industrial hemp seed products and similar products from other crops is the data of the caloric table. The determination of economic efficiency of products from seeds of industrial crops was carried out on the basis of research of market prices for seeds of various crops on the Agrovektor platform and products on the Prom.ua platform. Results. The study of the Ukrainian market allowed to identify eleven main products of processing technical hemp seeds: hemp oil, milk from hemp seeds, hemp protein, granola with hemp seeds, halva from hemp seeds, candies from hemp seeds, hemp flour, hemp bran, fiber (grist), hemp pasta and bread made from hemp flour. Analysis of the efficiency of production of technical hemp seeds allows us to say that now there is a need for increased development of production of granola, halva, pasta and candy for sale in both domestic and foreign markets. For other products, the intensification of production requires thorough work on the formation of consumer commitment, and hence an increase in demand and market prices. In addition, even the intensification of production from technical hemp seeds with the highest level of efficiency in comparison with other similar products requires overcoming the existing barriers of a regulatory nature. Conclusion. The intensification of production of technical hemp seeds in Ukraine is expedient both from the standpoint of providing profits to processing enterprises and from the standpoint of providing consumers with products with unique nutritional value. Due to the unique properties of hemp seeds and products from them, it is possible to produce products that are most fully focused on a wide range of consumers who do not tolerate gluten, involved in sports, follow a diet for weight loss, are vegans, and follow a healthy balanced diet. In terms of economic efficiency, it is expedient to intensify the production of granola, halva, pasta and candies from technical hemp seeds. The intensification of production of technical hemp seeds requires a revision of the quota procedure and licensing of technical hemp production, as this issue is the basis for the formation of raw materials for production.