One-way flow guide fabric-based wearable sweat sensor and preparation method thereof

A unidirectional flow and sensor technology, applied in sensors, blood characterization devices, medical science, etc., can solve the problems of poor flexibility, poor wearable comfort, inaccurate detection, etc., and achieve low cost and wide range of physiological substance monitoring concentration , the effect of high signal sensitivity

Pending Publication Date: 2021-10-22
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problems of the sweat sensor in the prior art in terms of poor inherent flexibility of the substrate and electrode materials, inaccurate detection caused by stagnant sweat surface, and poor wearable comfort. Wearable sweat sensor and preparation method thereof

Method used

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  • One-way flow guide fabric-based wearable sweat sensor and preparation method thereof
  • One-way flow guide fabric-based wearable sweat sensor and preparation method thereof
  • One-way flow guide fabric-based wearable sweat sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A preparation method of a unidirectional flow fabric-based wearable sweat sensor, the specific steps are as follows:

[0054] (1) prepare sweat unidirectional flow-conducting layer;

[0055] At constant spray gun pressure 1kgf / cm 2 Keep the spray gun mouth and the cotton fabric at a vertical distance of 30cm, spray the hydrophobic agent evenly on one side of the fabric, control the spraying amount of the hydrophobic agent to 20mg, preheat and bake at 100°C for 80min; cm 2 Keep the vertical distance of 20cm between the nozzle of the spray gun and the fabric, spray the hydrophilic agent evenly on the other side of the fabric, control the spraying amount of the hydrophilic agent to 100mg, and then place it under the UV light curing instrument for photocatalysis for 40min to obtain sweat single guiding layer;

[0056] The hydrophobic agent is a mixed solution of water-based polyurethane (modified polyurethane emulsion, refer to Chinese patent 201910998628.8 for the prepa...

Embodiment 2

[0086] A preparation method of a unidirectional flow fabric-based wearable sweat sensor, the specific steps are as follows:

[0087] (1) prepare sweat unidirectional flow-conducting layer;

[0088] At constant spray gun pressure 2kgf / cm 2 In the next step, keep a vertical distance of 40cm between the nozzle of the spray gun and the polyester-cotton blended fabric with a mass ratio of 1:1, spray the hydrophobic agent evenly on one side of the fabric, control the spraying amount of the hydrophobic agent to 40mg, and bake it at 115°C after preheating 65min; at constant spray gun pressure 2kgf / cm 2 Keep the vertical distance of 30cm between the nozzle of the spray gun and the fabric, spray the hydrophilic agent evenly on the other side of the fabric, control the spraying amount of the hydrophilic agent to 130mg, and then place it under the UV light curing instrument for photocatalysis for 60min, and then the sweat single guiding layer;

[0089] The hydrophobic agent is a mixed ...

Embodiment 3

[0098] A method for a unidirectional flow-through fabric-based wearable sweat sensor, the specific steps are as follows:

[0099] (1) prepare sweat unidirectional flow-conducting layer;

[0100] At constant spray gun pressure 4kgf / cm 2 Keep the nozzle of the spray gun at a vertical distance of 50cm from the polyester fabric, spray the hydrophobic agent evenly on one side of the fabric, control the spraying amount of the hydrophobic agent to 60mg, preheat and bake at 130°C for 50min; cm 2 Keep the vertical distance of 45cm between the nozzle of the spray gun and the fabric, spray the hydrophilic agent evenly on the other side of the fabric, control the spraying amount of the hydrophilic agent to 160mg, and then place it under the UV light curing instrument for photocatalysis for 70min to obtain sweat single guiding layer;

[0101] The hydrophobic agent is a mixed solution of water-based polyurethane (modified polyurethane emulsion, refer to Chinese patent 201910998628.8 for ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a one-way flow guide fabric-based wearable sweat sensor and a preparation method thereof. The one-way flow guide fabric-based wearable sweat sensor comprises a sweat one-way flow guide layer and a sweat evaporation layer; one surface, attached to the sweat evaporation layer, of the one-way sweat diversion layer is a hydrophilic surface, and the other surface is a hydrophobic surface; and an electrode system formed by weaving conductive fibers is embedded in the hydrophobic surface of the sweat one-way diversion layer. The preparation method comprises the following steps: uniformly spraying a hydrophobic reagent on one side of the fabric, conducting drying, uniformly spraying the hydrophilic reagent on the other side of the fabric, and carrying out UV photocuring to obtain the one-way sweat flow guide layer; preparing an electrode system; and weaving and embedding the electrode system into the hydrophobic surface of the one-way sweat flow guide layer, and tightly sewing the hydrophilic fabric and the hydrophilic surface of the one-way sweat flow guide layer to obtain the one-way flow guide fabric-based wearable sweat sensor. The sweat sensor is combined with a sweat one-way flow guide technology, in-situ real-time monitoring of sweat is achieved, and detection errors are reduced.

Description

technical field [0001] The invention belongs to the technical field of wearable sweat sensors, and relates to a wearable sweat sensor based on a unidirectional flow-conducting fabric and a preparation method thereof. Background technique [0002] With the development of portable medical systems, the real-time monitoring of various physiological markers related to human health has received extensive attention. Among them, compared with the conventional detection of blood, urine and saliva, human sweat has the advantages of non-invasive and real-time continuous monitoring, and the sweat components include glucose, lactic acid, sodium ions, potassium ions and ammonium ions, etc. Metabolites can correlate with the physiological health status of the human body. Therefore, research on wearable sweat sensors has great value and significance in health monitoring and disease prevention. [0003] At present, the research and development difficulties of wearable sweat sensors mainly l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/145A61B5/1477
CPCA61B5/14517A61B5/1477A61B5/6802
Inventor 彭子操赵燕刘日平胡子航
Owner SUZHOU UNIV
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