Pressure sensing intelligent fabric and preparation method and application thereof

A pressure and intelligent technology, applied in the direction of fluid pressure measurement, measurement force, and instrument by changing ohmic resistance, can solve the problems of poor air permeability and flexibility of smart fabrics, inability to wash and care, and smart fabrics without wearing comfort.

Active Publication Date: 2021-03-19
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these smart fabrics are poor in air permeability and flexibility, resulting in smart fabrics that are not comfortable to wear; and cannot be washed and cared for

Method used

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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  • Pressure sensing intelligent fabric and preparation method and application thereof
  • Pressure sensing intelligent fabric and preparation method and application thereof
  • Pressure sensing intelligent fabric and preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0051] The present invention provides a method for preparing a pressure-sensing smart fabric described in the above technical solution, comprising the following steps:

[0052] fixing a plurality of first conductive yarns to the inner surface of the first flexible fabric base layer;

[0053] fixing a plurality of second conductive yarns to the inner surface of the second flexible fabric base layer;

[0054] fixing the pressure-sensitive material on the first conductive yarn and / or the second conductive yarn in the form of strips or dots;

[0055] positioning the flexible fabric base layer with the conductive yarns and the pressure sensitive material secured thereto and the flexible fabric base layer with the conductive yarns secured thereto such that the first conductive yarns and the second conductive yarns intersect and are secured together Arranged in a matrix, point-like pressure-sensitive materials are distributed on the intersection of the matrix;

[0056] The first co...

Embodiment 1

[0067] A pressure-sensing smart fabric, composed of the following materials:

[0068] The first flexible fabric base layer and the second flexible fabric base layer are pure cotton plain weave fabrics, and the mass per unit area of ​​the fabric is 185g / m 2 , the warp and weft yarn densities are 24tex, the first flexible fabric base layer and the second flexible fabric base layer are subjected to flame-retardant and water-repellent finishing, and the composition of the flame-retardant and water-repellent treatment liquid is: organosilicon softener (amino silicone oil) 5wt% , resin crosslinking agent (triallyl isocyanurate) 2wt%, flame retardant (dimethylphenyl phosphate) 20wt%, fluorine-free water repellent (alkylamine and acrylate polymer) 3wt%, The rest is water; the method of flame-retardant and water-repellent finishing is as follows: the first flexible fabric base layer and the second flexible fabric base layer are placed in the flame-retardant and water-repellent treatmen...

Embodiment 2

[0076] A pressure-sensing smart fabric, composed of the following materials:

[0077] The first flexible fabric base layer and the second flexible fabric base layer are polyester-cotton blended plain weave fabrics, and the mass per unit area of ​​the fabric is 115g / m 2 , the warp and weft yarn density is 520 / 10cm; the first flexible fabric base layer and the second flexible fabric base layer are subjected to flame-retardant and water-repellent finishing, and the composition of the flame-retardant and water-repellent treatment liquid is: organosilicon softener (amino Silicone oil) 3wt%, resin crosslinking agent (triallyl isocyanurate) 1wt%, flame retardant (xylyl phosphate) 15wt%, fluorine-free water repellent (alkylamine and acrylate polymer ) 1wt%, and the rest is water; the flame-retardant and water-repellent finishing method is as follows: the first flexible fabric base layer and the second flexible fabric base layer are respectively placed in the flame-retardant and water-...

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Abstract

The invention provides a pressure sensing intelligent fabric and a preparation method and application thereof, and relates to the technical field of intelligent fabrics. When the pressure sensing intelligent fabric provided by the invention is pressed by an external force, the pressure sensitive material deforms, so that the resistance is changed, a loop is formed by the pressure-sensitive material, the first conductive yarn and the second conductive yarn, and an output signal is changed; and after the external force is removed, the pressure-sensitive material returns to the initial state under the action of the stress of the pressure sensitive material, the material resistance returns to the initial value, and intelligent pressure sensing is achieved. Moreover, a full-fabric flexible substrate is adopted, the conductive yarns are fixedly arranged on the flexible substrate, and the design form of a dot-shaped or long-strip-shaped pressure-sensitive material is combined so that the pressure sensing intelligent fabric has the advantages of breathability, softness and washability. The pressure sensing intelligent fabric provided by the invention has a wide application prospect in theintelligent wearable field.

Description

technical field [0001] The invention relates to the technical field of smart fabrics, in particular to a pressure-sensing smart fabric and its preparation method and application. Background technique [0002] Smart fabrics are new types of textiles that endow ordinary fabrics with functionality so that they can interact with users or the environment. It needs to integrate sensing, driving, electronics and other factors to innovate textiles. Research priorities and hotspots in other fields. [0003] Conductive textiles change electrical properties due to deformation caused by an applied external force, and this property is used to fabricate textile mechanosensors and strain sensors. Invention patent CN101479582 B discloses a textile mechanical sensor, which is used to detect the twist, pressure, tension, etc. Real-time detection of the physical signs of the user during sleep. However, these smart fabrics have poor air permeability and flexibility, resulting in that the sma...

Claims

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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Application Information

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IPC IPC(8): G01L1/22G01L9/04
CPCG01L1/22G01L9/04
Inventor 田明伟刘红王冰心曲丽君马玉龙朱士凤潘颖
Owner QINGDAO UNIV
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