Study On The Design And Development Of Intelligent Monitoring And Heating Knitwear For Female Physiological Cycle And Its Thermal Comfort Evaluation

Regular female physiological cycle is an important embodiment of healthy female psychology and reproductive capacity,which usually characterized by basal body temperature curve.Most women bear different discomfort and pain in their physiological cycle,which are affecting their daily work and life.Therefore,it is demanded to monitor and predict of women's physiological cycle as well as nurse and reduce of physiological discomfort.With the progress of new textile materials and microelectronics technology,the research on functional textiles for women's physiological cycle monitoring is gradually developing,which includes several aspects,such as the overall structural design of textiles,the screening and selection of yarns and fabrics,testing and evaluation of function,thermal comfort of the products.In this thesis,the influential elements or components concerning functional textiles for women's physiological cycle monitoring and nursing are scientifically and rationally selected and optimized,and a targeted intelligent monitoring and heating nursing knitwear is designed and developed based on the physiological state of women's physiological cycle combined with the characteristics of heat and moisture transfer performance of multi-layer fabrics via self-developed knitted heating fabric with silvercoated yarn.Firstly,combining human physiology and ergonomics,the appearance,structure and function design of knitwear for intelligent monitoring of female physiological cycle was carried out.Based on the electric heating properties of both silver-coated yarns and knitted fabric as well as the heat transfer performance of three-layer textile composite,the electric heating properties of 3 types of silver-coated yarns are tested and compared,the influences of knitting structure on knitted heating fabrics are discussed,the thermal performances of textile materials for each layer of the product are explored.And based on which,the multi-layer textile composite for women's physiological cycle monitoring and heat nursing knitwear are developed via selection and matching of the materials for each layer to realize optimized thermal care function.Based on the study of human body structure,the design and optimization of the female physiological cycle intelligent monitoring knitwear version are carried out.Combined with temperature sensor and electronic integration technology,the monitoring function of basic body temperature and intelligent control of heating temperature are realized.Finally,the characteristics and advantages of thermal comfort performance of knitwear are discussed through comparative experiments,and the basic body temperature monitoring function of physiological cycle is verified through experiments.Specific research contents and results mainly include three aspects:(1)Intelligent monitoring and prediction of physiological cycle.The temperature sensor is integrated into the knitwear,and the basic body temperature data is collected by using the temperature sensor.The change curve of basic body temperature is automatically generated through the mobile APP to observe the changes of physiological cycle.The results showed that the basal body temperature of the menstrual period showed a dual phase change,and the basal body temperature would decrease by about 0.3-0.6? during the menstrual period.The temperature sensor could effectively monitor the change of the basal body temperature for the monitoring and prediction of the menstrual period.(2)Heat care during menstrual period and intelligent control of heating temperature.Using heating fabric,temperature sensor and circuit integration to realize the thermal care function of knitwear and intelligent control of heating temperature.In order to screen the required yarns and fabrics,the silver-coated yarn is used to weave the knitted heating fabric,and the electric heating property of the silver-coated yarn and the knitted heating fabric is studied.Combined with the compound principle of the heating textile,the heat and moisture property of each layer of fabric and the heat and moisture transfer property of the heating three-layer textile composite are studied.Intelligent control of heating temperature is realized by temperature sensor and circuit integration.The results show that the linear density and the structure of the yarn have significant influence on the electric and thermal performance of the heated knitted fabric,and the equilibrium temperature of the heated fabric is linearly related to the input power.The heat and moisture properties of each layer of fabric have a significant influence on the heat and moisture transfer of textile composites.(3)Development of intelligent monitoring knitwear and evaluation on its thermal comfort.Based on functional requirements and questionnaire survey,the style structure of female physiological cycle intelligent monitoring knitwear was carried out in combination with ergonomics and human physiology.The thermal comfort performance of knitwear was evaluated through subjective and objective experiments such as warm-up dummy test and physiological test of human body clothing,and compared with the common physiological period thermal care products on the market to analyze the effects and advantages of the knitwear developed by the subject.The results show that the female physiological cycle intelligent monitoring knitwear based on fabric performance research and model optimization has not only better thermal comfort,but also can effectively monitor the basic body temperature of physiological cycle,and has the advantages of softness,fitting to human body,and portability.