Passive motion interaction information feedback system capable of being used for wearable fabric and printing preparation method of passive motion interaction information feedback system

Abstract

The invention discloses a passive motion interaction information feedback system for a wearable fabric and a printing preparation method thereof, the system comprises a fabric substrate, and a color feedback information display unit, a conversion circuit and a passive driving unit are printed on the fabric substrate; the passive driving unit is interconnected with the color feedback information display unit through the conversion circuit; the passive driving unit comprises an outer ring electrode and an inner circle electrode which are of a nested structure, a fabric substrate is coated with a mixed solution prepared from nylon and barium titanate in a blade coating mode, the outer ring electrode and the inner circle electrode are covered to form a first driving layer, and a negative friction electricity material is pasted to the fabric substrate on the inner side of the arm to form a second driving layer; when the driving layers contact with each other to generate friction, the friction electrification effect enables the outer ring electrode and the inner circle electrode to induce opposite charges, so that current is generated, and passive driving is realized. The problems that a traditional wearable electronic fabric depends on an external power source and is high in energy consumption, low in preparation efficiency and the like are solved, and the exercise monitoring and user interaction experience is improved.

Description

Technical Field

[0001] The present invention belongs to the field of printed wearable electronics, and in particular relates to a passive motion interactive information feedback system that can be used for wearable fabrics and a printing preparation method thereof. Background Art

[0002] With the continuous development and popularization of Internet of Things (IOT), the market for wearable electronic fabrics continues to grow. In particular, as people pay more and more attention to their own health management, the demand for the application of wearable electronic fabrics in the fields of health monitoring and sports interaction is becoming more and more vigorous. Products such as smart sportswear and smart running shoes can use the information interaction feedback mechanism to monitor the wearer's various sports data in real time, thereby providing strong data support for the formulation of personalized health management plans and fitness plans.

[0003] Compared with traditional wearable devices, wearable electronic fabrics have better wearability, flexibility and portability, can fit the human body more closely, and improve the user's comfort and usage experience. However, existing wearable electronic fabrics often require an external power supply. The life and volume of the power supply reduce the comfort and portability of the wearable fabrics, and the high-energy consumption interactive information display is also poorly compatible with the power supply. At the same time, the traditional wearable electronic fabric system construction method mainly integrates functional fibers on fabrics through textile, embroidery and other processes. The process from preparation to integration of functional fibers in clothing often requires multiple processes to be processed step by step, and there are inevitably problems such as low preparation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a passive motion interactive information feedback system that can be used for wearable fabrics and a printing and preparation method thereof, which solves the problems of traditional wearable electronic fabrics relying on external power supplies, high energy consumption, and low preparation efficiency, and improves motion monitoring effects and user interaction experience.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A passive motion interactive information feedback system that can be used for wearable fabrics comprises a fabric substrate, a color feedback information display unit, a conversion circuit and a passive driving unit are printed on the fabric substrate, and the passive driving unit is interconnected with the color feedback information display unit on the fabric substrate through the conversion circuit; the passive driving unit comprises an outer ring electrode and an inner circle electrode in a circular electrode nesting structure that are screen-printed on the fabric substrate, a mixed solution made of nylon (Nylon) and barium titanate (BaTiO3) is scraped on the fabric substrate and covers the outer ring electrode and the inner circle electrode to form a first driving layer, a negative triboelectric material is adhered to the fabric substrate on the inner side of the arm to form a second driving layer, and when the first driving layer and the second driving layer contact each other and rub against each other, the triboelectric effect causes the outer ring electrode and the inner circle electrode to induce opposite charges, thereby generating current and realizing passive driving.

[0007] Furthermore, the conversion circuit includes a conductive circuit connecting the color feedback information display unit and the passive driving unit and a rectifying electronic component, and the conductive circuit is prepared by screen printing of conductive silver paste.

[0008] Furthermore, the color feedback information display unit includes a patterned color information display electrode designed as a "GO" pattern and a transparent ion transport gel assembled on the surface of the patterned color information display electrode.

[0009] Furthermore, the transparent ion transport gel is made of polyvinyl alcohol / lithium perchlorate (PVA / LiClO4) gel electrolyte.

[0010] Furthermore, the fabric substrate comprises a fabric and a printed insulating layer, and the printed insulating layer is made by scraping a polyurethane solution with a solid content of 30-35%.

[0011] A printing preparation method for a passive motion interactive information feedback system that can be used for wearable fabrics comprises the following steps:

[0012] Step 1: Printing preparation of the printed insulation layer

[0013] Apply polyurethane with a solid content of 30-35% on the printed area of ​​the fabric and let it dry naturally to form a printed insulation layer;

[0014] Step 2: Printing and preparation of the conductive lines of the passive drive unit's electrodes and conversion circuits

[0015] On the printed isolation layer, an integrated patterned screen is used to print the outer ring electrode, inner circle electrode and conductive circuit using conductive silver paste. After printing, the outer ring electrode, inner circle electrode and conductive circuit are dried at 120°C for 20-25 minutes.

[0016] Step 3: Preparation of the first driving layer of the passive driving unit

[0017] Nylon is dissolved in formic acid to form a Nylon solution, BaTiO3 powder with a mass ratio of 2%-10% is added and evenly mixed to form a mixed solution, the mixed solution is scraped on the printed isolation layer and covers the outer ring electrode and the inner circle electrode, and is naturally dried to form a first driving layer;

[0018] Step 4: Printing preparation of patterned color information display electrodes

[0019] Using the screen plate of step 2, the PEDOT:PSS composite ink is pattern-printed on the printed isolation layer; after printing, it is placed on a hot plate at 120°C for annealing for 20-25 minutes, and then formic acid is evenly applied and dried naturally to form a patterned color information display electrode;

[0020] Step 5: Preparation of transparent ion transport gel

[0021] PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 80-85°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of a transparent ion transport gel;

[0022] Step 6: System Assembly

[0023] On the fabric substrate, transparent ion transfer gel is assembled on the surface of the patterned color information display electrode and encapsulated with 3M tape to form a complete color feedback information display unit. At the same time, negative triboelectric material is pasted on the fabric substrate on the inside of the arm as the second driving layer, and the rectifying electronic components are installed at the reserved positions of the conductive circuit to obtain a passive motion interactive information feedback system that can be used for wearable fabrics.

[0024] Furthermore, the screen plate in step 2 uses a screen with a mesh count of 200-300l / in, the screen spacing is set to 2-2.5mm, the pressure during printing is controlled at 0.5-0.8MPa, and the printing speed is 10-15cm / s.

[0025] Furthermore, the specific operation of the uniform mixing in step 3 is to first use an ultrasonic instrument to sonicate for 1-1.2 hours, and then use a magnetic stirrer to stir at 500 rpm for 2-2.5 hours.

[0026] Furthermore, the preparation process of the PEDOT:PSS composite ink described in step 4 is as follows: 2-3 mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion is ultrasonically dispersed in a -5-0°C ice bath for 30-35 min, and then 2-3 mL of methanol (MeOH) and 10-15 mg of hydroxyethyl cellulose (HEC) powder are sequentially added under magnetic stirring, and stirring is continued for 4-4.5 h to obtain a PEDOT:PSS composite ink;

[0027] Furthermore, the negative triboelectric material in step six is ​​selected from one of fluorinated ethylene propylene, polytetrafluoroethylene or polydimethylsiloxane.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention is provided with a passive driving unit and a second driving layer. When the user swings his arm after wearing it, the first driving layer and the second driving layer contact each other and rub against each other. The frictional electrification effect causes the outer ring electrode and the inner circle electrode to induce opposite charges, thereby generating current. The AC signal output by the passive driving unit is processed into a DC signal through the conversion circuit transmission and drives the color feedback information display unit. With the continuous current injection, the PEDOT in the composite ink undergoes an oxidation-reduction reaction, which is reflected in the patterned color information display electrode changing from light blue to dark blue, thereby achieving the effect of passive motion information interaction. At the same time, the outer ring electrode and the inner circle electrode of the passive driving unit are a circular nested structure. No matter from which angle the second driving layer rubs against the first driving layer, a potential difference is generated between the outer ring electrode and the inner circle electrode, causing the movement of electrons to generate current, thereby meeting the needs of multi-angle sliding energy collection during human motion and improving the accuracy of motion monitoring.

[0030] The present invention realizes the full printing preparation of wearable electronic fabrics by adopting a printing method, rationally utilizing the display advantages of polymer composite ink and the conductive properties of conductive silver paste. Compared with other processing methods, this scalable method has the advantages of high efficiency, low cost and high compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the passive drive unit structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the color feedback information display unit of the present invention;

[0034] Figure 4 A physical diagram of the color change process of the color feedback information display unit of the present invention;

[0035] In the figure: 1-color feedback information display unit; 11-patterned color information display electrode; 13-transparent ion transfer gel; 2-conversion circuit; 21-conductive circuit; 22-rectifier electronic component; 3-passive drive unit; 31-outer ring electrode; 31-inner circle electrode; 33-first drive layer; 34-second drive layer; 4-fabric substrate; 41-fabric; 42-printed insulation layer. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 As shown, a passive motion interactive information feedback system for wearable fabrics described in this embodiment includes a fabric base 4, which includes a fabric 41 and a printed insulating layer 42. The printed insulating layer 42 is made of a polyurethane (TPU) solution with a solid content of 30-35% by scraping. The printed insulating layer 42 can make the printed pattern on the fabric surface evenly deposited and effectively prevent ink diffusion. A color feedback information display unit 1, a conversion circuit 2, and a passive driving unit 3 are printed on the fabric base 4. The passive driving unit 3 is interconnected with the color feedback information display unit 1 on the fabric base 4 through the conversion circuit 2.

[0038] The conversion circuit 2 includes a conductive circuit 21 and a rectifying electronic component 22 connecting the color feedback information display unit 1 and the passive driving unit 3. The conductive circuit 21 is prepared by screen printing of conductive silver paste, and mainly plays the role of unit interconnection and system integration. When printing the conductive circuit 21, a connection site is reserved for installing the rectifying electronic component 22. The rectifying electronic component 22 processes the electrical signal generated by the passive driving unit 2 and converts it into an electrical signal that can be received by the color feedback information display unit 1.

[0039] like Figure 2 As shown, the passive drive unit 3 includes an outer ring electrode 31 and an inner circle electrode 32 which are screen-printed on a fabric substrate 4. The inner diameter of the outer ring electrode 31 is 5 cm and the outer diameter is 8 cm; the diameter of the inner circle electrode 32 is 3 cm, and the outer ring electrode 31 and the inner circle electrode 32 form a circular electrode nesting structure. A mixed solution made of nylon (Nylon) and barium titanate (BaTiO3) is scraped on the fabric substrate 4 and covers the outer ring electrode 31 and the inner circle electrode 32 to form a first drive layer 33, and a negative triboelectric material is adhered to the fabric substrate 4 on the inner side of the arm to form a second drive layer 34. The negative triboelectric material is selected from one of fluorinated ethylene propylene, polytetrafluoroethylene or polydimethylsiloxane. When the first drive layer 33 and the second drive layer 34 contact each other and rub against each other, the triboelectric effect causes the outer ring electrode 31 and the inner circle electrode 32 to induce opposite charges, thereby generating current and realizing passive drive.

[0040] like Figure 3 As shown, the color feedback information display unit 1 includes a patterned color information display electrode 11 and a transparent ion transfer gel 13 assembled on the surface of the patterned color information display electrode 11. The patterned color information display electrode 11 is designed as a "GO" pattern and is prepared by pattern printing with a PEDOT:PSS composite ink. The transparent ion transfer gel 13 uses a polyvinyl alcohol / lithium perchlorate (PVA / LiClO4) gel electrolyte. After passive driving, the charge accumulation causes a change in the electric field, thereby promoting the migration of ions in the transparent ion transfer gel 13. Figure 4 As shown, during the charge accumulation and ion migration process, the PEDOT in the composite ink undergoes a redox reaction, causing the electronic structure of PEDOT to change, thereby causing it to present different colors. When the charge is less, PEDOT is in an oxidized state and appears light blue; when the charge accumulation increases, PEDOT is reduced and appears dark blue. Depending on the conductivity and transparency of the electrolyte, the color change of the patterned color information display electrode 11 can be directly observed from the top of the color feedback information display unit 1.

[0041] Working principle: A passive motion interactive information feedback system that can be used for wearable fabrics. When the user swings his arms after wearing it, the first drive layer 33 and the second drive layer 34 contact each other and rub against each other. The frictional electrification effect causes the outer ring electrode 31 and the inner circle electrode 32 to induce opposite charges, thereby generating current. The AC signal output by the passive drive unit 3 is transmitted and processed into a DC signal by the conversion circuit 2, and drives the color feedback information display unit 1. With the continuous current injection, the PEDOT in the composite ink undergoes an oxidation-reduction reaction, which is reflected in the patterned color information display electrode 41 changing from light blue to dark blue, thereby achieving the effect of passive motion information interaction.

[0042] Embodiment 1: A printing preparation method for a passive motion interactive information feedback system that can be used for wearable fabrics, comprising the following steps:

[0043] Step 1: Printing preparation of the printed insulation layer 42

[0044] Apply polyurethane with a solid content of 30% on the printed area of ​​the fabric 41 and dry it naturally to form a printed isolation layer 42;

[0045] Step 2: Printing preparation of the electrodes of the passive drive unit 3 and the conductive circuit 21 of the conversion circuit 2

[0046] On the printed isolation layer 42, a screen plate with a mesh count of 200 l / in and a screen pitch of 2 mm was used, and conductive silver paste was used to print the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 at a pressure of 0.5 MPa and a printing speed of 10 cm / s. After printing, the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 were dried at 120° C. for 20 min.

[0047] Step 3: Preparation of the first driving layer 33 of the passive driving unit 3

[0048] Nylon is dissolved in formic acid to form a Nylon solution, and BaTiO3 powder with a mass ratio of 2% is added. Ultrasonication is first performed using an ultrasonic instrument for 1 hour, and then a magnetic stirrer is used to stir at 500 rpm for 2 hours to form a mixed solution after uniform mixing. The mixed solution is scraped and coated on the printed isolation layer and covers the outer ring electrode 31 and the inner circular electrode 32, and is naturally dried to form the first driving layer 33;

[0049] Step 4: Printing preparation of patterned color information display electrode 11

[0050] 2 mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion was ultrasonically dispersed in a -5°C ice bath for 30 min, and then 2 mL of methanol (MeOH) and 10 mg of hydroxyethyl cellulose (HEC) powder were added in sequence under magnetic stirring, and stirring was continued for 4 h to obtain a PEDOT:PSS composite ink; the PEDOT:PSS composite ink was pattern-printed on the printed isolation layer 42 using the screen plate of step 2; after printing, the mixture was placed on a 120°C hot plate for annealing for 20 min, and then formic acid was evenly applied and allowed to dry naturally to form a patterned color information display electrode 11;

[0051] Step 5: Preparation of transparent ion transport gel 13

[0052] PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 80°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of the transparent ion transport gel 13;

[0053] Step 6: System Assembly

[0054] On the fabric substrate 4, a transparent ion transfer gel 13 is assembled on the surface of the patterned color information display electrode 11, and 3M tape is adhered to encapsulate it to obtain a complete color feedback information display unit 1. At the same time, fluorinated ethylene propylene is adhered to the fabric substrate 4 on the inner side of the arm as the second driving layer 34, and a rectifying electronic component 22 is installed on the reserved connection site of the conductive circuit 21 to obtain a passive motion interactive information feedback system that can be used for wearable fabrics.

[0055] Embodiment 2: A printing preparation method for a passive motion interactive information feedback system that can be used for wearable fabrics, comprising the following steps:

[0056] Step 1: Printing preparation of the printed insulation layer 42

[0057] Apply polyurethane with a solid content of 35% on the printed area of ​​the fabric 41 and dry it naturally to form a printed isolation layer 42;

[0058] Step 2: Printing preparation of the electrodes of the passive drive unit 3 and the conductive circuit 21 of the conversion circuit 2

[0059] On the printed isolation layer 42, a screen plate with a mesh count of 300 l / in and a screen pitch of 2.5 mm was used, and conductive silver paste was used to print the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 at a pressure of 0.8 MPa and a printing speed of 15 cm / s. After printing, the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 were dried at 120° C. for 25 min.

[0060] Step 3: Preparation of the first driving layer 33 of the passive driving unit 3

[0061] Nylon is dissolved in formic acid to form a Nylon solution, BaTiO3 powder with a mass ratio of 10% is added, and ultrasonication is first performed for 1.2 hours using an ultrasonic instrument, and then stirred for 2.5 hours at 500 rpm using a magnetic stirrer to form a mixed solution after uniform mixing. The mixed solution is scraped and coated on the printed isolation layer and covers the outer ring electrode 31 and the inner circular electrode 32, and dried naturally to form the first driving layer 33;

[0062] Step 4: Printing preparation of patterned color information display electrode 11

[0063] 3 mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion was ultrasonically dispersed in an ice bath at 0°C for 35 min, and then 3 mL of methanol (MeOH) and 15 mg of hydroxyethyl cellulose (HEC) powder were added in sequence under magnetic stirring, and stirring was continued for 4.5 h to obtain a PEDOT:PSS composite ink; the PEDOT:PSS composite ink was pattern-printed on the printed isolation layer 42 using the screen plate of step 2; after printing, the mixture was placed on a hot plate at 120°C for annealing for 25 min, and then formic acid was evenly applied and allowed to dry naturally to form a patterned color information display electrode 11;

[0064] Step 5: Preparation of transparent ion transport gel 13

[0065] PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 85°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of the transparent ion transport gel 13;

[0066] Step 6: System Assembly

[0067] On the fabric substrate 4, a transparent ion transfer gel 13 is assembled on the surface of the patterned color information display electrode 11, and 3M tape is adhered to encapsulate it to obtain a complete color feedback information display unit 1. At the same time, polytetrafluoroethylene is adhered to the fabric substrate 4 on the inner side of the arm as the second driving layer 34, and a rectifying electronic component 22 is installed on the reserved connection site of the conductive circuit 21 to obtain a passive motion interactive information feedback system that can be used for wearable fabrics.

[0068] Embodiment 3: A printing preparation method for a passive motion interactive information feedback system that can be used for wearable fabrics, comprising the following steps:

[0069] Step 1: Printing preparation of the printed insulation layer 42

[0070] Apply polyurethane with a solid content of 32% on the printed area of ​​the fabric 41 and dry it naturally to form a printed isolation layer 42;

[0071] Step 2: Printing preparation of the electrodes of the passive drive unit 3 and the conductive circuit 21 of the conversion circuit 2

[0072] On the printed isolation layer 42, a screen plate with a mesh count of 250 l / in and a screen pitch of 2.2 mm was used, and conductive silver paste was used to print the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 at a pressure of 0.6 MPa and a printing speed of 12 cm / s. After printing, the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 were dried at 120° C. for 22 minutes.

[0073] Step 3: Preparation of the first driving layer 33 of the passive driving unit 3

[0074] Nylon is dissolved in formic acid to form a Nylon solution, and BaTiO3 powder with a mass ratio of 5% is added. The solution is first ultrasonicated for 1.1 hours using an ultrasonic instrument, and then stirred at 500 rpm for 2.3 hours using a magnetic stirrer to form a mixed solution after uniform mixing. The mixed solution is scraped onto the printed isolation layer and covers the outer ring electrode 31 and the inner circular electrode 32, and is naturally dried to form a first driving layer 33;

[0075] Step 4: Printing preparation of patterned color information display electrode 11

[0076] 2.5 mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion was ultrasonically dispersed in a -3°C ice bath for 32 min, and then 2.4 mL of methanol (MeOH) and 12 mg of hydroxyethyl cellulose (HEC) powder were added in sequence under magnetic stirring, and stirring was continued for 4.2 h to obtain a PEDOT:PSS composite ink; the PEDOT:PSS composite ink was pattern-printed on the printed isolation layer 42 using the screen plate of step 2; after printing, the mixture was placed on a 120°C hot plate for annealing for 23 min, and then formic acid was evenly applied and allowed to dry naturally to form a patterned color information display electrode 11;

[0077] Step 5: Preparation of transparent ion transport gel 13

[0078] PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 82°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of the transparent ion transport gel 13;

[0079] Step 6: System Assembly

[0080] On the fabric substrate 4, a transparent ion transfer gel 13 is assembled on the surface of the patterned color information display electrode 11, and 3M tape is adhered to encapsulate it to obtain a complete color feedback information display unit 1. At the same time, polydimethylsiloxane is adhered to the fabric substrate 4 on the inner side of the arm as the second driving layer 34, and a rectifying electronic component 22 is installed on the reserved connection site of the conductive circuit 21 to obtain a passive motion interactive information feedback system that can be used for wearable fabrics.

[0081] Embodiment 4: A printing preparation method for a passive motion interactive information feedback system that can be used for wearable fabrics comprises the following steps:

[0082] Step 1: Printing preparation of the printed insulation layer 42

[0083] Apply polyurethane with a solid content of 32% on the printed area of ​​the fabric 41 and dry it naturally to form a printed isolation layer 42;

[0084] Step 2: Printing preparation of the electrodes of the passive drive unit 3 and the conductive circuit 21 of the conversion circuit 2

[0085] On the printed isolation layer 42, a screen plate with a mesh count of 280 l / in and a screen pitch of 2.4 mm was used, and conductive silver paste was used to print the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 at a pressure of 0.7 MPa and a printing speed of 14 cm / s. After printing, the outer ring electrode 31, the inner circle electrode 32 and the conductive circuit 21 were dried at 120° C. for 24 minutes.

[0086] Step 3: Preparation of the first driving layer 33 of the passive driving unit 3

[0087] Nylon is dissolved in formic acid to form a Nylon solution, BaTiO3 powder with a mass ratio of 8% is added, and ultrasonication is first performed for 1 hour using an ultrasonic instrument, and then stirred for 2.5 hours with a magnetic stirrer at 500 rpm to form a mixed solution after uniform mixing. The mixed solution is scraped and coated on the printed isolation layer and covers the outer ring electrode 31 and the inner circular electrode 32, and dried naturally to form the first driving layer 33;

[0088] Step 4: Printing preparation of patterned color information display electrode 11

[0089] 2 mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion was ultrasonically dispersed in an ice bath at -1°C for 35 min, and then 3 mL of methanol (MeOH) and 15 mg of hydroxyethyl cellulose (HEC) powder were added in sequence under magnetic stirring, and stirring was continued for 4 h to obtain a PEDOT:PSS composite ink; the PEDOT:PSS composite ink was pattern-printed on the printed isolation layer 42 using the screen plate of step 2; after printing, the mixture was placed on a hot plate at 120°C for annealing for 25 min, and then formic acid was evenly applied and allowed to dry naturally to form a patterned color information display electrode 11;

[0090] Step 5: Preparation of transparent ion transport gel 13

[0091] PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 84°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of the transparent ion transport gel 13;

[0092] Step 6: System Assembly

[0093] On the fabric substrate 4, a transparent ion transfer gel 13 is assembled on the surface of the patterned color information display electrode 11, and 3M tape is adhered to encapsulate it to obtain a complete color feedback information display unit 1. At the same time, fluorinated ethylene propylene is adhered to the fabric substrate 4 on the inner side of the arm as the second driving layer 34, and a rectifying electronic component 22 is installed on the reserved connection site of the conductive circuit 21 to obtain a passive motion interactive information feedback system that can be used for wearable fabrics.

Claims

1. A passive motion interactive information feedback system that can be used for wearable fabrics, characterized in that: The invention comprises a fabric base (4), on which a color feedback information display unit (1), a conversion circuit (2) and a passive driving unit (3) are printed, and the passive driving unit (3) is interconnected with the color feedback information display unit (1) on the fabric base (4) via the conversion circuit (2); The passive driving unit (3) comprises an outer ring electrode (31) and an inner ring electrode (32) in a circular electrode nesting structure which are screen-printed on a fabric base (4); a mixed solution made of nylon (Nylon) and barium titanate (BaTiO3) is scraped on the fabric base (4) and covers the outer ring electrode (31) and the inner ring electrode (32) to form a first driving layer (33); a negative triboelectric material is adhered to the fabric base (4) on the inner side of the arm to form a second driving layer (34); when the first driving layer (33) and the second driving layer (34) are in contact with each other and friction occurs, the triboelectric effect causes the outer ring electrode (31) and the inner ring electrode (32) to induce opposite charges, thereby generating current and realizing passive driving.

2. A passive motion interactive information feedback system for wearable fabrics according to claim 1, characterized in that: The conversion circuit (2) comprises a conductive circuit (21) connecting the color feedback information display unit (1) and the passive drive unit (3) and a rectifying electronic component (22), wherein the conductive circuit (21) is prepared by screen printing of conductive silver paste.

3. The passive motion interactive information feedback system for wearable fabrics according to claim 1, characterized in that: The color feedback information display unit (1) comprises a patterned color information display electrode (11) designed as a "GO" pattern and a transparent ion transmission gel (13) assembled on the surface of the patterned color information display electrode (11).

4. A passive motion interactive information feedback system for wearable fabrics according to claim 3, characterized in that: The transparent ion transport gel (13) is made of polyvinyl alcohol / lithium perchlorate (PVA / LiClO4) gel electrolyte.

5. The passive motion interactive information feedback system for wearable fabrics according to claim 1, characterized in that: The fabric substrate (4) comprises a fabric (41) and a printed insulating layer (42), wherein the printed insulating layer (42) is made by scraping a polyurethane (TPU) solution having a solid content of 30-35%.

6. A printing preparation method for a passive motion interactive information feedback system for wearable fabrics as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Printing preparation of the printed insulation layer (42) Applying polyurethane with a solid content of 30-35% on the printed area of ​​the fabric (41) and drying it naturally to form a printed insulation layer (42); Step 2: Printing preparation of the electrodes of the passive drive unit (3) and the conductive circuit (21) of the conversion circuit (2) On the printed isolation layer (42), an outer ring electrode (31), an inner circle electrode (32) and a conductive circuit (21) are printed using a conductive silver paste using an integrated patterned screen plate, and after printing, the outer ring electrode (31), the inner circle electrode (32) and the conductive circuit (21) are dried at 120° C. for 20-25 minutes; Step 3: Preparation of the first driving layer (33) of the passive driving unit (3) Nylon is dissolved in formic acid to form a Nylon solution, BaTiO3 powder with a mass ratio of 2% to 10% is added and evenly mixed to form a mixed solution, the mixed solution is scraped on the printed isolation layer (42) and covers the outer ring electrode (31) and the inner circle electrode (32), and is naturally dried to form a first driving layer (33); Step 4: Printing preparation of patterned color information display electrode (11) Using the screen plate of step 2, pattern-printing the PEDOT:PSS composite ink on the printed isolation layer (42); After printing is completed, the electrode is placed on a hot plate at 120° C. for annealing for 20-25 minutes, and then evenly coated with formic acid and allowed to dry naturally to form a patterned color information display electrode (11); Step 5: Preparation of transparent ion transport gel (13) PVA, LiClO4 and deionized water were mixed in a mass fraction ratio of 10%:10%:80%, and heated in an oil bath at 80-85°C until a clear solution was formed, and after cooling to room temperature, a PVA / LiClO4 gel electrolyte was obtained, thereby completing the preparation of a transparent ion transport gel (13); Step 6: System Assembly On a fabric substrate (4), a transparent ion transfer gel (13) is assembled on the surface of a patterned color information display electrode 11, and 3M tape is adhered to encapsulate it to form a complete color feedback information display unit (1). At the same time, a negative triboelectric material is adhered to the fabric substrate (4) on the inner side of the arm as a second driving layer (34), and a rectifying electronic component (22) is installed on the reserved connection site of the conductive circuit (21), thereby obtaining a passive motion interactive information feedback system that can be used for wearable fabrics.

7. The printing preparation method of the passive motion interactive information feedback system for wearable fabrics according to claim 6, characterized in that: In step 2, the screen plate uses a screen with a mesh count of 200-300l / in, the screen spacing is set to 2-2.5mm, the pressure during printing is controlled at 0.5-0.8MPa, and the printing speed is 10-15cm / s.

8. The printing preparation method of the passive motion interactive information feedback system for wearable fabrics according to claim 6, characterized in that: The specific operation of the uniform mixing in step 3 is to first use an ultrasonic instrument to sonicate for 1-1.2 hours, and then use a magnetic stirrer to stir at 500 rpm for 2-2.5 hours.

9. The printing preparation method of a passive motion interactive information feedback system for wearable fabrics according to claim 6, characterized in that: The preparation process of the PEDOT:PSS composite ink described in step 4 is as follows: 2-3mL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT:PSS) aqueous dispersion is ultrasonically dispersed in a -5-0°C ice bath for 30-35min, and then 2-3mL of methanol (MeOH) and 10-15mg of hydroxyethyl cellulose (HEC) powder are added in sequence under magnetic stirring, and stirring is continued for 4-4.5h to obtain the PEDOT:PSS composite ink.

10. The printing preparation method of a passive motion interactive information feedback system for wearable fabrics according to claim 6, characterized in that: In step six, the negative triboelectric material is selected from one of fluorinated ethylene propylene, polytetrafluoroethylene or polydimethylsiloxane.

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