Microcapsule dispersing type coaxial high-voltage electrostatic gel device and application thereof

Abstract

The invention provides a microcapsule dispersing type coaxial high-voltage electrostatic gel device and application thereof, and relates to the technical field of textile ink-jet printing. The microcapsule dispersing type coaxial high-voltage electrostatic gel device comprises a reaction cylinder, a first high-elasticity silica gel hose penetrates through and is fixedly connected to the interior of the top of the reaction cylinder, a second injector is fixedly connected to one end of the first high-elasticity silica gel hose, and a wall material axial flow injection pump is arranged at the bottom of the second injector; the bottom of the wall material axial flow injection pump is fixedly connected with a supporting column. The reaction of the core material and the wall material is controlled through the core material axial flow injection pump and the wall material axial flow injection pump, the reaction conditions such as temperature, pressure and concentration can be adjusted more finely, and reactants are ensured to be fully mixed and contacted in the reaction process, so that the complete proceeding of the reaction is promoted; and the microcapsule synthesis process is optimized, so that the yield of the microcapsule is remarkably improved, and the phenomenon that the microcapsule is damaged or the coating rate is low is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile inkjet printing, in particular to a microcapsule dispersed coaxial high-voltage electrostatic gel device and application thereof. Background Art

[0002] Color-changing materials can change color with external stimuli such as light, heat, humidity, and electricity. Thermochromic materials are popular because their colors change with temperature and are widely used in many fields. However, the performance of thermochromic materials is unstable and they are easily affected by environmental conditions and become ineffective. Microcapsule technology can improve the durability and stability of materials. By encapsulating thermochromic materials with this technology, its application range can be broadened.

[0003] Inkjet printing refers to the process of printing a designed printed pattern on fabric through a digital printing machine dedicated to textiles. With the continuous advancement of technology and the development of the textile industry, inkjet printing, as a fast, flexible and environmentally friendly digital printing technology, is gradually replacing traditional printing technology. It is suitable for small-batch and multi-variety production, improving efficiency and design creativity. However, with the improvement of market requirements for printing quality and environmental protection, existing inkjet printing technology faces challenges, especially the particle size of commercially available thermochromic ink is too large and is not compatible with inkjet printing machines, which limits the application and development of thermochromic materials.

[0004] The sol-gel method is a common method for preparing microcapsules. During the preparation, metal alkoxides or inorganic salts are used as precursors, which are hydrolyzed and condensed to form sols, which are then aged to form gels. After drying and impurities are removed, the target product is annealed at high temperature. This method is simple to operate, suitable for inorganic wall materials, and has a small particle size, but the prepared microcapsules are easy to agglomerate, which affects the subsequent processing to make printing inks and dyeing effects.

[0005] Therefore, it is of great significance to promote the technology and development of inkjet printing and thermochromic microcapsules by using a device or a method to make the microcapsules in the prepared thermochromic dyes uniformly dispersed and the particle size compatible with the inkjet printing machine. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a microcapsule dispersed coaxial high-voltage electrostatic gel device and its application, which solves the problem that the microcapsules prepared by using inorganic wall materials with small particle size are easy to agglomerate, affecting the subsequent processing to make printing ink and dyeing effect.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a microcapsule dispersed coaxial high-voltage electrostatic gel device and its application, including a reaction cylinder, a first high-elasticity silicone hose is passed through and fixedly connected to the top of the reaction cylinder, a second syringe is fixedly connected to one end of the first high-elasticity silicone hose, a wall material axial flow injection pump is arranged at the bottom of the second syringe, a support column is fixedly connected to the bottom of the wall material axial flow injection pump, a support sleeve is fixedly connected to the outer ring of the rear end of the support sleeve, and a connecting rod is fixedly connected to both ends of the connecting rod and the support column, a second high-elasticity silicone hose is passed through and fixedly connected to the left side of the reaction cylinder, a first syringe is fixedly connected to one end of the second high-elasticity silicone hose, and a reaction component is arranged at the bottom of the reaction cylinder.

[0008] Preferably, the reaction assembly comprises a reaction nozzle, and the reaction nozzle is fixedly connected to the bottom of the reaction cylinder.

[0009] Preferably, a magnetic stirrer is provided at the bottom of the reaction cylinder.

[0010] Preferably, a core material axial flow injection pump is provided at the bottom of the first syringe, and the bottom of the core material axial flow injection pump is fixedly connected to the right support column.

[0011] Preferably, a capillary tube nozzle is fixedly connected to the bottom of the reaction nozzle.

[0012] Preferably, a receiving device is provided inside the magnetic stirrer, and a high-voltage power supply box is provided on the right side of the magnetic stirrer.

[0013] Preferably, the high-voltage power supply box is fixedly connected to an external power supply with a connecting wire, and the connecting wire is arranged at the bottom of the wool tube nozzle.

[0014] Working principle: Reversible thermochromic material is used as the core material and injected into the first syringe. High molecular organic polymer, inorganic substance or a mixture of the two that can form a film is used as the wall material and injected into the second syringe. The solution is controlled to enter the reaction cylinder through the first high-elastic silicone hose and the second high-elastic silicone hose respectively, and then to the reaction nozzle. The capillary nozzle of the reaction nozzle and the receiving device are connected to the high-voltage power supply through a wire. Under the action of the high-voltage power supply, the microcapsule solution generated in the reaction nozzle is electrosprayed into the receiving device, and under the action of the magnetic stirrer, a stably dispersed microcapsule solution is formed in the receiving device.

[0015] The present invention provides a microcapsule dispersed coaxial high-voltage electrostatic gel device and its application, which has the following beneficial effects: The present invention controls the reaction of the core material and the wall material through the core material axial flow injection pump and the wall material axial flow injection pump, and can more finely adjust the reaction conditions, such as temperature, pressure, concentration, etc., and ensure that the reactants are fully mixed and contacted during the reaction, thereby promoting the complete progress of the reaction; so as to optimize the microcapsule synthesis process, thereby significantly improving the yield of the microcapsules and reducing the phenomenon of microcapsule breakage or low coverage.

[0016] The present invention connects the capillary nozzle at the lower end of the reaction nozzle to a receiving device and a high-voltage power supply through a wire, so that the solution sprayed out during the extrusion of the capillary nozzle is charged. Since the charged droplets repel each other, the generated particles do not agglomerate, which can effectively solve the agglomeration phenomenon caused by the sol-gel method for preparing microcapsules.

[0017] The present invention loads the core material and the wall material into the first syringe and the second syringe respectively and delivers them through a high-elastic silicone hose. By selecting appropriate core material, wall material and processing parameters, the core material is encapsulated in the shell layer, thereby forming monodisperse microcapsule particles. During the reaction, the core material and the wall material are respectively delivered to the reaction nozzle in the coaxial electrospray for reaction, the contact between the two phases is minimized, and the risk of degradation of the two-phase solution is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of a receiving device of the present invention.

[0019] Among them, 1. magnetic stirrer; 2. support column; 3. high-voltage power supply box; 4. core material axial flow injection pump; 5. first syringe; 6. wall material axial flow injection pump; 7. second syringe; 8. first high-elastic silicone hose; 9. second high-elastic silicone hose; 10. connecting line; 11. capillary tube nozzle; 12. reaction nozzle; 13. connecting rod; 14. support sleeve; 15. reaction cylinder; 16. receiving device. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] like Figure 1-3As shown, an embodiment of the present invention provides a microcapsule dispersed coaxial high-voltage electrostatic gel device and its application, including a reaction cylinder 15, a first high-elasticity silicone hose 8 is passed through and fixedly connected to the top of the reaction cylinder 15, one end of the first high-elasticity silicone hose 8 is fixedly connected to the second syringe 7, a wall material axial flow injection pump 6 is arranged at the bottom of the second syringe 7, the bottom of the wall material axial flow injection pump 6 is fixedly connected to the support column 2, the outer ring of the reaction cylinder 15 is fixedly connected to the support sleeve 14, the outer ring of the rear end of the support sleeve 14 is fixedly connected to the connecting rod 13, and the connecting rod 13 is fixedly connected to both ends of the support column 2, a second high-elasticity silicone hose 9 is passed through and fixedly connected to the left side of the reaction cylinder 15, one end of the second high-elasticity silicone hose 9 is fixedly connected to the first syringe 5, and a reaction component is arranged at the bottom of the reaction cylinder 15.

[0022] The core material of the first syringe 5 includes a reversible thermochromic material, and the wall material of the second syringe 7 includes a high molecular organic polymer that can form a film, an inorganic substance, or both. A stirrer is provided inside the receiving device 6, so that the magnetic stirrer 1 rotates. The needles and barrels of the first syringe 5 and the second syringe 7 can be replaced. The reaction assembly includes a reaction nozzle 12 , and the reaction nozzle 12 is fixedly connected to the bottom of the reaction tube 15 .

[0023] The core material and the wall material are slowly introduced into the reaction nozzle 12 of the reaction tube 15 for sufficient reaction; the capillary nozzle 11 at the lower end of the reaction nozzle 12 sprays the solution through extrusion.

[0024] A magnetic stirrer 1 is provided at the bottom of the reaction cylinder 15 .

[0025] The charged droplets are made to form a dispersed solution in the receiving device 6, and the agglomerated microcapsules are also dispersed in the solution. The thermochromic ink is prepared with this solution, which can make the color uniform, better compatible with the inkjet printer, and prepare fine thermochromic patterns. A core material axial flow injection pump 4 is provided at the bottom of the first syringe 5 , and the bottom of the core material axial flow injection pump 4 is fixedly connected to the right support column 2 .

[0026] The core material axial flow injection pump 4 and the wall material axial flow injection pump 6 will control the propulsion speed and solution dosage of the first syringe 5 and the second syringe 7 respectively.

[0027] The bottom of the reaction nozzle 12 is fixedly connected with a capillary tube nozzle 11 .

[0028] Spray the mixed liquid.

[0029] A receiving device 16 is arranged inside the magnetic stirrer 1 , and a high-voltage power supply box 3 is arranged on the right side of the magnetic stirrer 1 .

[0030] The receiving device 6 has a stirrer inside, which makes the magnetic stirrer 1 rotate and is powered by the high-voltage power supply box 3 .

[0031] The high-voltage power supply box 3 is fixedly connected to an external power supply with a connecting wire 10 , and the connecting wire 10 is arranged at the bottom of the yarn tube nozzle 11 .

[0032] The solution in the reaction nozzle 12 is squeezed through the capillary nozzle 11 to form droplets, and the droplets are charged through the high-voltage power supply box 3 and the connecting line 10, repelling each other and being electrosprayed into the receiving device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microcapsule dispersed coaxial high-voltage electrostatic gel device and its application, comprising a reaction tube (15), characterized in that: A first high-elasticity silicone hose (8) is passed through and fixedly connected to the top of the reaction cylinder (15); one end of the first high-elasticity silicone hose (8) is fixedly connected to a second syringe (7); a wall material axial flow injection pump (6) is arranged at the bottom of the second syringe (7); the bottom of the wall material axial flow injection pump (6) is fixedly connected to a support column (2); the outer ring of the reaction cylinder (15) is fixedly connected to a support sleeve (14); the outer ring of the rear end of the support sleeve (14) is fixedly connected to a connecting rod (13); and the connecting rod (13) is fixedly connected to both ends of the support column (2); a second high-elasticity silicone hose (9) is passed through and fixedly connected to the left side of the reaction cylinder (15); one end of the second high-elasticity silicone hose (9) is fixedly connected to the first syringe (5); and a reaction assembly is arranged at the bottom of the reaction cylinder (15).

2. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 1, characterized in that: The reaction assembly comprises a reaction nozzle (12), and the reaction nozzle (12) is fixedly connected to the bottom of the reaction cylinder (15).

3. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 1, characterized in that: A magnetic stirrer (1) is arranged at the bottom of the reaction cylinder (15).

4. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 1, characterized in that: A core material axial flow injection pump (4) is provided at the bottom of the first syringe (5), and the bottom of the core material axial flow injection pump (4) is fixedly connected to the right support column (2).

5. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 2, characterized in that: The bottom of the reaction nozzle (12) is fixedly connected to a capillary tube nozzle (11).

6. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 3, characterized in that: A receiving device (16) is arranged inside the magnetic stirrer (1), and a high-voltage power supply box (3) is arranged on the right side of the magnetic stirrer (1).

7. A microcapsule dispersed coaxial high voltage electrostatic gel device and its application according to claim 6, characterized in that: The high-voltage power supply box (3) is fixedly connected to an external power supply with a connecting wire (10), and the connecting wire (10) is arranged at the bottom of the yarn tube nozzle (11).

8. Application of a microcapsule dispersed coaxial high-voltage electrostatic gel device according to claims 1-7 in textile inkjet printing, biomedicine, electronic equipment and environment.

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