Design of Energy-saving Technology of Shaping and Fixing the Shape of Headdresses Parts

The problem of increasing the quality of women's headdresses by designing an energy­efficient technology of their shaping and fixing the shape in the medium of chemical dressings was studied, which makes it possible to obtain the parts of volumetric shape made of fabrics without breaking up.As a result of analytical and experimental research, the selection of a liquid­active working medium was substantiated for the implementation of the process of shaping, which is a designed dressing of the following composition: 50–60 g/l lakriteks, 50–60 g/l of carbamol CES, 1–2 g/l ammonium chloride;A vibration method was designed, which has three implementation variants and an installation for the vibroshaping and fixing the shape of parts of headdresses in the medium LAWM. As a result of the research of the efficiency of the method, we received graphical dependencies of the quality of a part on the input parameters that are described mathematically. The main rational parameters of the process of shaping arise from these dependencies: the frequency of vibration v=4.8 Hz, the amplitude of vibration А=2.3 mm, increase in pressure ΔР=0.17 MPa, the period of the air supply to the chamber of a pneumatic drive Т=3/5 half­period.The headdress head, shaped under these parameters, displays high quality of this part (Кs≤0,28). The designed method allows exploring the process of shaping and fixing the shape in one cycle of treatment that provides increase in labour productivity by 12.7 % and reduction of energy costs by 49 %; the assessment of the process of fixing the shape was performed by the indicator of the number of created crosslinks. Shaped heads and women's headdress were manufactured by the designed method

Study of Cutting Presses in Designing a Women's Costume for Hospitality Industry

The authors conducted analytical studies to identify materials used to produce women's footwear based on an analysis of the costumes of the leading capitals (Paris, Milan, London, and New York) over ten years.The experimental measuring stand for researching characteristics of cutting presses was designed. To conduct the research, we developed the program for obtaining the main technical indicators of electrohydraulic pressing equipment in LabVIEW environment that makes it possible to control the process of cutting and to process and store data, obtained from the analog-to-digital converter. A number of structural changes were made for research based on the press PVG-8-2-0.It was found that due to proposed improvements, power consumption of the equipment decreased by 35 % compared with that of the press PVG-8-2-0 and by 14 % compared with that of the press C06.01 Compart, taking into account coefficient of correspondence of maximum working forces that occur during cutting. Within one cycle, the proposed design of the press provides significant energy saving, which is 5.12 kW compared with the press PVG-8-2-0 and 11.72 kW compared with the press C06.01 Compart. Coefficient of set power consumption of the electric engine is the highest among all the examined presses and is 0.85, which indicates high power efficiency. Efficiency of the improved electrohydraulic pressing equipment was determined, equal to 33 %, which is 11 % higher compared to that of the press PVG-8-2-