JP5151058B2 - Microcapsule sheet manufacturing method and manufacturing apparatus - Google Patents

Description

  The present invention relates to a technique for producing microcapsules of micron (μm) order and a technique for aligning fine particles, and in particular, a method for producing a microcapsule sheet for use in a display unit such as an electronic paper having a microcapsule structure and a display. And a manufacturing apparatus.

  In recent years, a microcapsule is generally composed of a content called a core material and a capsule membrane material that is a micro container that encloses the content, and has a function of protecting the core material from the external environment and a function of adjusting the timing of release to the outside. Therefore, it is widely used in various fields such as pressure sensitive paper and electrophoretic particles.

  As a method for manufacturing a microcapsule, Patent Document 1 discloses that a solution containing a core substance body of a microcapsule and a capsule membrane substance is stored in a discharge tank provided with a vibrator, and a material is obtained by vibration of the vibrator. Fine particles are formed to form microcapsules in the solution. Further, the vibrating body is operated at a relatively low frequency at which the solution can respond, the solution is pushed out, and a small amount of solution 16a including microcapsules is discharged from the discharge nozzle. Thus, it is described that a microcapsule is applied to an object.

  In Patent Document 2, the core material for microcapsules is further flown along the outer surface of the ultrasonic horn, and further the capsule membrane material is flowed down to the outer surface of the core material, and is supplied to the lower surface of the ultrasonic horn in a wet film state. In addition, a microcapsule droplet in which a core substance is coated with a capsule substance is produced by spraying two substances in the form of fine particles by ultrasonic vibration in the vertical direction of an ultrasonic horn. The capsule membrane material is floated on a liquid in which the membrane material is insoluble, and a liquid or solid core material is dropped onto the capsule membrane material to coat the capsule membrane material around the core material, and then the membrane material is insoluble. Encapsulation is disclosed by passing through a liquid.

  Furthermore, as a method of coding into a sheet of encapsulated microcapsules or the like to form a sheet, in Patent Document 4, a display layer coating solution in which the mixing ratio of microcapsules is adjusted is applied on the electrodes of the display substrate, When the solvent in the coating layer is dried, vibration is applied to the coating layer to obtain a microcapsule sheet in which the microcapsules are arranged in a single layer and densely. It is described that a microcapsule sheet is obtained which is coated on top and is dried and contracted to obtain a closely attached microcapsule sheet.

  And in patent document 6, since a microcapsule is knead | mixed in binder resin and inject | emitted from a nozzle and shape | molds in a fiber form, a resin fiber is made so that a microcapsule may pass a nozzle diameter in 1 row. It is described that the interval between the microcapsules in the resin fiber is set to a desired value depending on the binder kneading concentration of the microcapsules, the injection speed from the nozzle, and the like, and is arranged on the substrate to obtain a microcapsule sheet. 7, since the electrophoretic body is composed of charged particles that are positively or negatively charged, the electrophoretic body is floated on a liquid, an electric field is applied to one of the pair of substrates, and one of the substrates is It is described that the surface is densely arranged in a substantially single layer and electrically tightly coded.

Further, Patent Document 8 includes a continuous phase and a discontinuous phase, and the discontinuous phase has a plurality of droplets containing a suspension fluid and at least one particle, and each particle of the droplet is in the suspension fluid. Moving through the suspending fluid and applying the electric field, the continuous phase surrounds and encapsulates the discontinuous phase. The discontinuous phase describes a two-phase electrophoretic medium constituting at least 40% by volume of the electrophoretic medium. Patent Document 9 has a diameter less than the wavelength of a fluid and visible light as an electrophoretic display. If it contains a plurality of dispersed nanoparticles and the fluid is evenly dispersed throughout, it presents a first optical feature, and if the nanoparticles are collected and aggregated and larger than an individual nanoparticle, the second Presents different optical features. In addition, a configuration is described that includes an electrode in which an electric field is applied to a nanoparticle-containing fluid and the nanoparticles are arranged to move between a dispersed state and an aggregated state.
JP 2004-298684 A JP 59-228930 A JP 2001-212449 A JP 2005-258310 A JP 2001-212449 A JP 2002-189234 A JP 2005-241792 A JP-T-2004-524570 Special table 2004-522180 gazette

  In the above-described encapsulation of the microcapsules, in order to obtain microcapsules having a uniform diameter, for example, as shown in Patent Documents 2 and 3, the core material is sprayed with a capsule membrane material sufficiently smaller than the diameter of the core material. The usual means is to produce microcapsules with a uniform diameter by allowing the droplets to pass through and the core material passing through the liquid capsule membrane material floating on the liquid.

  However, if the capsule membrane material is a high-viscosity material, spraying becomes difficult, the capsule membrane thickness becomes non-uniform, and there are restrictions on the configuration conditions for floating the liquid capsule membrane material on the liquid. There are many issues. Moreover, in the manufacturing method of a normal microcapsule sheet, the process of forming a microcapsule and a sheet is performed in a separate process.

  In addition, the structure of the microcapsule type display device has the manufactured microcapsules arranged in a single sheet. Furthermore, the microcapsules are deformed by pressure to improve the resolution, thereby reducing the gaps. However, since the capsule itself is rigid, and the thickness of the adhesive layer is necessary to suppress the restoration after pressure release by bonding and solidifying the capsules, and the diameters of the microcapsules vary. For this reason, there is a problem that the structure is difficult to be dense, and therefore, it is likely to be multi-layered.

  The present invention is directed to solving the above-mentioned problems of the prior art, in order to obtain a microcapsule sheet that is self-aligned and self-deformed in a single layer in which the microcapsule diameter variation is small and the arrangement is dense, A thin film of capsule membrane material is formed, and a microcapsule in an incomplete state is created by encapsulating the core material (fine solids or droplets) so as to penetrate through the thin film. An object of the present invention is to provide a microcapsule sheet manufacturing method and a manufacturing apparatus for manufacturing a microcapsule sheet through a series of steps by using a microcapsule in a state where deformation or destruction occurs in reverse. To do.

In order to achieve the above object, a method for producing a microcapsule sheet according to claims 1 and 2 according to the present invention comprises a step of granulating and spraying a core material, and the core material is formed of a capsule membrane material. It consists of an encapsulation process in which a capsule membrane material is coated by passing it through a thin film, and a sheeting process in which microcapsules coated with the capsule membrane material are arranged in a single layer and adhered and solidified. The manufacturing process can be shortened and a more stable quality microcapsule sheet can be manufactured.
In the manufacturing method of claim 1, the single layer arrangement of the microcapsules in the sheet forming step is “self-assembled by dropping unfinished microcapsules coated with a capsule membrane substance into a protective liquid stored in an inclined container. It is characterized by the above.
According to a second aspect of the present invention, there is provided a single layer arrangement of microcapsules in a sheet forming process, wherein “an incomplete microcapsule coated with a capsule membrane material is dropped on a tilted thin film for self-assembly. It is characterized by the above.
As described later, “incomplete microcapsules coated with a capsule membrane substance”
It is a microcapsule in which the capsule membrane material has not yet solidified and is in a “state where deformation or destruction can easily occur”.

Further, in the manufacturing method of the microcapsule sheet according to claim 3 or 4, in the manufacturing method of claim 1 or 2 , the spraying step flows out by applying pressure to the container for storing the core material, and into the container. Applying vibration to granulate the liquid droplets and eject them from the injection port.Furthermore, the core material droplets ejected from the injection port have the potential energy at the time of breaking the thin film passing through the thin film formed by the capsule film material. In relation to the kinetic energy of the core material droplet, the ejection speed is as follows (Equation 1)

を満足することによって、芯物質の液滴はカプセル膜物質の薄膜を突き抜けて通過するので芯物質にカプセル膜物質を均一に被膜することができる。

By satisfying the above, since the droplet of the core material passes through the thin film of the capsule membrane material, the capsule membrane material can be uniformly coated on the core material.

Moreover, the manufacturing method of the microcapsule sheet | seat described in Claim 5-8 is a manufacturing method of Claim 1 or 2 , The capsule membrane material which forms the thin film of an encapsulation process is the aqueous solution which added surfactant. In addition, it is a gel-like aqueous solution to which a surfactant is added, the aqueous solution to which the surfactant is added is an aqueous gelatin solution, and the aqueous solution to which the surfactant is added is an aqueous solution of an energetic curable resin. The capsule material having improved thin film strength can be coated on the core material.

Moreover, the manufacturing method of the microcapsule sheet described in claims 9 to 13 is the manufacturing method of claim 1 or 2 , that is, the single layer arrangement of the microcapsules in the sheet forming step is an incomplete state in which the capsule film is not yet solidified The microcapsules are dropped into a protective liquid stored in an inclined container and self-integrated, and the microcapsules with the capsule film not solidified are dropped onto the inclined self-integrating thin film and self-integrated. In addition, the substance to be dried and solidified is added to the protective liquid, the substance to be dried and solidified is gelatin, and self-accumulation is performed by external force and gravity generated by external force means provided near the container. The external force generated by the external force means in the vicinity of the film and gravity is used, and the external force generated by the external force means is vibration, centrifugal force, magnetic force Since it is any one or more, microcapsules can be self-assembled and arranged in a single layer, and since the capsule film is in an unsolidified state, it can be easily integrated in a shape close to a fine hexagonal shape with a small force such as surface tension after self-assembly. High degree of self-deformation is possible.

The microcapsule sheet manufacturing method according to any one of claims 14 and 15 is the manufacturing method according to any one of claims 5 to 8 , wherein the microcapsule is closely adhered and solidified in the sheet forming step by drying the capsule membrane material of the microcapsule. Alternatively, by irradiating the energy-curable resin contained in the capsule membrane material of the microcapsule with energy, the capsule membrane becomes thin due to shrinkage due to drying, and a sheet with improved microcapsule sheet integration can be obtained. .

Moreover, the manufacturing method of the microcapsule sheet | seat described in Claims 16-18 is a manufacturing method of Claims 1-15. A series of processes of an injection process, an encapsulation process, and a sheeting process are controlled by an environmental maintenance means. By performing in an atmosphere of atmospheric pressure lower than atmospheric pressure, further in an atmosphere at a temperature higher than the solation temperature of the capsule film substance, and further in an atmosphere having a saturated humidity, a thin film of the capsule material of the core substance Capsule with a uniform thickness that prevents air from being entrained when passing through the capsule, suppresses gelation of the capsule membrane material thin film, facilitates passage through the capsule membrane material thin film, and prevents drying of the capsule membrane material thin film A stable capsule wall thin film can be formed on the core material by forming a film.

The apparatus for producing a microcapsule sheet according to claim 19 is provided with an encapsulating means for coating and encapsulating the capsule membrane material by passing through a thin film formed by encapsulating the core material with the capsule membrane material. In an atmosphere controlled by the environmental maintenance means, and a sheet forming means for arranging and solidifying the microcapsules coated with the capsule membrane substance in a single layer and an environmental maintenance means for controlling the atmospheric pressure, temperature and humidity. By arranging the jetting means, the encapsulating means, and the sheeting means, and performing the method of manufacturing the microcapsule sheet according to claim 16 through a series of processes by each means, the processing of the manufacturing process is shortened, A more stable quality microcapsule sheet can be produced.

  By the above method and apparatus, each step of forming into a sheet using advantages such as easy deformation of an unfinished microcapsule is performed as a series of processes to form a thin film of capsule membrane material and pass through the core material Thus, a microcapsule sheet can be produced by self-arrangement and self-deformation by surface tension and drying and fixing before drying the capsule membrane.

  According to the present invention, a core material is granulated by an injection device, a capsule membrane material is coated on the core material granulated by an encapsulation device to produce a microcapsule, and the microcapsule is self-assembled by a sheeting device. By performing the sheet forming process by a series of operations, there is an effect that a finer and single-layer microcapsule sheet can be created.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a flowchart showing a process of a manufacturing method of a microcapsule sheet in an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a schematic configuration of a manufacturing apparatus.

  As shown in FIG. 2, the manufacturing apparatus in the present embodiment includes a microcapsule sheet manufacturing apparatus 1 whose atmosphere is controlled by an environment maintaining apparatus (not shown) that maintains an environment such as atmospheric pressure, temperature, and humidity. An injection device 2 for injecting and granulating a substance (droplet), and an encapsulation device 3 for manufacturing a microphone capsule by covering the surface of the core material with the capsule membrane material when the injected core material passes through the capsule membrane material. And a sheet forming apparatus 4 that self-assembles the produced microcapsules to produce a microcapsule sheet.

  The injection device 2 includes a core material supply unit 6 that supplies a core material, a storage unit 7 that stores the supplied core material, a vibrator 8 that granulates the core material, and an injection port that determines the particle size of the core material. 9, the encapsulating apparatus 3 includes a capsule membrane material supply unit 11 that supplies a capsule membrane material and a roll 12 that forms a thin film of the capsule membrane material in order to form a thin film through which the core material passes. 4 is for receiving the microcapsule produced by the encapsulation device 3 and forming a sheet, so that the protective liquid 14, the container 15 having a flat bottom surface filled with the protective liquid 14, and the discharge portion for discharging the protective liquid 14 from the container 15 Become.

  Furthermore, the sheet forming apparatus 4 includes an environment maintaining apparatus that maintains an environment in which an atmosphere for performing close contact and drying processing is performed after the protective liquid 14 that receives the microcapsules from the encapsulating apparatus 3 is discharged.

  Below, the manufacturing method of the microcapsule sheet | seat of this Embodiment is demonstrated, referring FIG. 2 based on FIG.

  The manufacturing method of a microcapsule sheet is composed of three processes for processing by each apparatus shown in FIG. 2, and each processing process is a granulation process, an encapsulation process, and a sheeting process.

  First, the material which becomes a core substance is supplied to the storage part 7 of the injection apparatus 2 from the core substance supply part 6 (S1). In order to eject the core material of the storage unit 7, pressure and vibration by the vibrator 8 are applied from the core material supply unit 6, and the core material (droplet) is granulated and ejected from the injection port 9 (S2).

  This core material is granulated by generating pressure by applying pressure from the core material supply unit 6 and generating a pulsating flow in the liquid flow flowing out from the injection port 9 by vibrating by the vibrator 8, Further, the particle diameter is determined by the diameter of the injection port 9.

  In the encapsulation device 3, a thin film of capsule membrane material through which the granulated and ejected core material from the injection device 2 passes is formed (S3). This thinning of the capsule membrane material is formed to have a constant film thickness by the capsule membrane material supplied from the capsule membrane material supply unit 11 (water-soluble substance + surface tension due to the surfactant) and the roll 12.

  The core material passes through the formed thin film of the capsule membrane material to coat the capsule membrane material to produce a microcapsule (S4).

  As a predetermined speed for the core material (droplet) to pass through the thin film of the capsule membrane material, the ejection speed from the ejection port 9 satisfies the following condition “positional energy at the time of thin film destruction <droplet kinetic energy”. Like that. This is based on the assumption that the kinetic energy of the droplet is not converted into thermal energy, and that the thin film is broken (passed through the thin film) at the yield point (elastic and plastic conversion point) of the material (Equation 2).

で表される。

It is represented by

  Therefore, increasing the mass m of the droplet or the velocity v of the droplet, decreasing the spring constant of the thin film (for example, decreasing the concentration of the gelatin aqueous solution or increasing the temperature to decrease the viscosity), yielding of the thin film By reducing the deflection amount δmax, the droplets can pass through the thin film.

  The microcapsules manufactured in the encapsulation apparatus 3 are in an unfinished state (a state in which deformation or destruction easily occurs), and the protective liquid 14 was stored in order to avoid drying the coated capsule film. The sheet is received by the container 15 having a flat bottom surface. Further, the container 15 is inclined and arranged to self-assemble the microcapsules (S5). In order to form the microcapsules self-assembled in the inclined container 15, the protective liquid 14 is discharged from the discharge portion 16 from the container 15 and pre-dried, and further, deformation, adhesion and drying of the microcapsules are performed by pressurization and heating. To make a sheet (S6).

  Further, as a specific example of the injection device 2 for granulating the core material of the manufacturing apparatus in the present embodiment, a core material of microcapsules (here, isoparaffin containing titanium oxide and carbon black) is added to the injection device 2. The liquid is injected from the core material supply unit 6 to generate pressure (240 kpa in this case), and the liquid flow is ejected from the ejection port 9. Further, by oscillating by the vibrator 8, a pulsating flow is generated in the liquid flow ejected from the ejection port 9, and droplets are formed and granulated. Here, the vibration of the vibrator 8 is 50 kHz, the diameter of the injection port 9 is 50 μm, and the diameter of the core material obtained is about 100 μm. The injection speed at that time is about 10 m / sec. In FIG. 2, the number of the injection ports 9 is one, but a plurality of injection ports 9 may be provided to inject a plurality of core materials.

  The capsule membrane is supplied from a capsule membrane material supply unit 11 shown in FIG. 2 (here, 1 wt% of a surfactant of sodium alkyl ether sulfate is added to a 10 wt% gelatin aqueous solution), and a roll 12 In the meantime, the capsule membrane is thinned. The capsule membrane material is supplied from one capsule membrane material supply unit 11 to one roll 12 and is discharged from the other roll 12 to thin the capsule membrane material (thin film thickness is about 10 μm). Here, the film thickness is controlled and the film thickness is controlled by applying tension to the capsule membrane material by the rotating roll 12 and the concentration of the capsule membrane material.

  Moreover, although not shown in FIG. 2, there is a guide portion between the rolls 12 to maintain a thin film. Further, in order to prevent the capsule membrane material from drying and gelation (gelation at 40 ° C. or lower), the inside of the manufacturing apparatus 1 is maintained in an atmosphere of 90 to 100 wt% humidity and 60 ° C. temperature by an environmental maintenance device. ing.

  FIG. 3 is a schematic diagram showing a process of coating the capsule material on the core substance in the encapsulation apparatus 3 of the manufacturing apparatus. The principle of encapsulation will be described with reference to FIG. The core material droplet ejected from the ejection device 2 passes through the capsule membrane thin film and is coated with the capsule membrane material. At this time, energy (velocity: 10 m / sec, diameter: 100 μm) is required for the liquid droplets more than energy necessary for the passage through the capsule membrane, and the droplet passes through the capsule membrane. As it passes, the capsule membrane thin film coats the core material. Further, the passed capsule membrane is repaired by self-healing effects (such as Gibbs effect and Marangoni effect) by the surfactant. It becomes possible to coat again according to the passage of the core substance.

  Depending on the spraying speed of the spraying device 2, the size of the droplets, the viscosity of the thin film, and the like, there is a possibility that air may be slightly involved when passing, so it is desirable to reduce the pressure of the entire manufacturing device (contains a diameter of 30 μm or less If it is a bubble, it will be released to the outside of the microcapsule. Further, the rolls 12 of the encapsulating apparatus 3 are disposed so as to be inclined so that the capsule membrane material flows from the supply side to the outflow side.

  Next, the sheet forming apparatus 4 that forms the microcapsules shown in FIG. 2 includes a container 15 that can receive the microcapsules and arrange them flat, a protective liquid 14 that prevents the microcapsules from drying and adheres, and for densification. In addition to the discharge unit 16 that discharges the protective liquid, and the environmental maintenance device of the entire manufacturing apparatus, the environmental maintenance device that maintains the environment for close contact and drying.

  FIG. 4 is a schematic view showing a process of forming the microcapsules obtained by the encapsulation apparatus 3 into a single layer with a high density. A container 15 having a flat bottom is filled with a protective liquid 14 (cold water of 30 ° C. or lower). The protective liquid 14 is set below the gelling temperature of gelatin to reduce the capsule membrane breakage and drying. Further, the adhesion between the microcapsules is reduced by the surface tension of the protective liquid 14.

  In this environmental state, the container 15 is tilted, or by being vibrated as an external force by a device provided in the vicinity while being tilted, the microcapsule naturally moves downward by its own weight, and single-layer self-integration is performed. Further, when receiving the microcapsules from the encapsulating device 3 with the protective liquid 14, the encapsulating device 3 and the sheeting device 4 are arranged with a sufficient distance to reduce the speed so that the capsule film is not destroyed, You may comprise so that the container 15 may be moved little by little so that it may be easy to self-assemble in single-layer sheeting. Alternatively, in addition to vibrating the container 15, the microcapsule is made into a single layer by centrifugal force generated by rotating the container 15 around the dropping point of the microcapsule, magnetic force obtained by an electrode or the like disposed in the vicinity of the container 15, etc. It is also possible to make a sheet.

  After the completion of self-assembly, the protective liquid 14 is discharged by the discharge unit 16 and preliminary drying is performed. At the time when the protective liquid 14 is present, the microcapsules are spherical, but when discharged, the surface tension of the protective liquid 14 decreases, and on the contrary, the influence of the adhesion force between the capsules of the microcapsules becomes remarkable. Deforms to a shape close to a fine hexagonal shape. As the protective solution 14, an aqueous solution mixed with 0.2 wt% gelatin is used.

  Thereafter, it is also effective to heat the entire container 15 to a temperature equal to or higher than the gelling temperature of gelatin (here, 60 ° C.) to further adhere the microcapsules. Further, due to the shrinkage of the capsule wall due to drying, the capsule wall is deformed and closely adhered to a shape close to a fine hexagonal shape.

  As another configuration example of the sheet forming apparatus 4, a self-integrating thin film liquid film 17 (soap film: about 1 to 10 μm) as shown in FIG. 5 is formed, and the microcapsule (here about 50 μm) self Accumulate. The liquid film material is flowed from the liquid film material supply side 18 disposed at an inclination to the liquid film material outflow side 19 to form the liquid film 17. The self-assembled microcapsules are received at an appropriate interval in the vicinity of the liquid film material supply side 18 of the liquid film 17 and moved in the direction of the liquid film material outflow side 19 by applying a magnetic force or the like as an external force. A single-layer microcapsule can be formed into a sheet. The liquid capsule 17 has a very small flow resistance and the film thickness of the liquid film 17 is sufficiently small with respect to the microcapsule. This is because the surface tension is received. Note that a 5 to 10 wt% gelatin aqueous solution or the like is used as the liquid film material.

  6A is a state of the microcapsule when it is received on the supply side A shown in FIG. 5, and FIG. 6B is a view showing a state of the microcapsule self-assembled on the outflow side of B shown in FIG. is there. Further, the microcapsules obtained by the above method have a very uniform diameter. Further, the microcapsules formed into a sheet can be produced as a microcapsule sheet having a substantially dense hexagonal shape with a single layer as shown in FIG.

  As described above, a fine single-layer microphone capsule sheet is created by a series of operations of the granulation process by the injection device 2, the encapsulation process by the encapsulation device 3, and the self-integrated sheeting step by the sheeting device 4. be able to.

  In this embodiment, gelatin is used as the capsule film of the microcapsule. However, for example, microcapsules are manufactured using a thermosetting resin as an energetic curable resin, and a similar single-layer self-assembly is performed. It is also possible to create a microcapsule sheet that has been made into a sheet by irradiation with light such as ultraviolet rays after the formation.

  A method and apparatus for producing a microcapsule sheet according to the present invention comprises a core material granulated by an injection device, a core material granulated by an encapsulating device is coated with a capsule membrane material, and a microcapsule is produced to form a sheet. By performing the process of self-integrating microcapsules into a sheet using a device by a series of operations, a finer, single-layer microphone capsule sheet can be created and used for display units such as electronic paper and displays having a microcapsule structure. It is useful as these manufacturing methods and apparatuses.

The flowchart which shows the manufacturing method of the microcapsule sheet in embodiment of this invention The schematic diagram which shows schematic structure of the manufacturing apparatus of the microcapsule sheet in this Embodiment. The schematic diagram which shows the process of coating a capsule film | membrane on the core substance in this Embodiment The schematic diagram which shows the process of forming the microcapsule in this Embodiment into a single layer The schematic diagram which shows another process of making the microcapsule in this Embodiment into a single layer sheet (A) in the present embodiment is a state of the microcapsule indicated by an arrow A in FIG. 5, and (b) is a diagram illustrating a state of the microcapsule indicated by an arrow B in FIG. The figure which shows the state of the microcapsule dried and solidified in this Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 2 Injection apparatus 3 Encapsulation apparatus 4 Sheet forming apparatus 6 Core substance supply part 7 Storage part 8 Vibrator 9 Injection port 11 Capsule film substance supply part 12 Roll 14 Protective liquid 15 Container 16 Discharge part 17 Liquid film 18 Liquid film Material supply side 19 Liquid membrane material outflow side

Claims (19)

A step of granulating and spraying a core material, a step of encapsulating the core material by passing the core material through a thin film formed of a capsule membrane material, and a microcapsule coated with the capsule membrane material In a method for producing a microcapsule sheet comprising a sheet forming process in which layers are arranged and adhered and solidified, and each process is performed by a series of processes ,
The single layer arrangement of the microcapsules in the sheet forming step is performed by self-assembly by dropping unfinished microcapsules coated with the capsule membrane material into a protective liquid stored in an inclined container. A method for producing a microcapsule sheet. A step of granulating and spraying a core material, a step of encapsulating the core material by passing the core material through a thin film formed of a capsule membrane material, and a microcapsule coated with the capsule membrane material In a method for producing a microcapsule sheet comprising a sheet forming process in which layers are arranged and adhered and solidified, and each process is performed by a series of processes ,
The micro-layer arrangement of the microcapsules in the sheet forming step is performed by self-assembly by dropping an unfinished microcapsule coated with the capsule membrane material onto an inclined self-assembly thin film. A method for producing a capsule sheet. 3. The jetting step is characterized in that pressure is applied to a container for storing a core material material to flow out, and vibration is applied to the container to granulate droplets to be ejected from an ejection port. The manufacturing method of the microcapsule sheet | seat of description . The droplet of the core material ejected from the ejection port has an ejection velocity of the following condition (in relation to the positional energy at the time of thin film breakage passing through the thin film formed by the capsule membrane material and the kinetic energy of the droplet of the core material) Number 1)

The method for producing a microcapsule sheet according to claim 3, wherein: The method for producing a microcapsule sheet according to any one of claims 1 to 4, wherein the capsule membrane material forming the thin film in the encapsulation step is an aqueous solution to which a surfactant is added . The method for producing a microcapsule sheet according to any one of claims 1 to 4, wherein the capsule membrane material forming the thin film in the encapsulation step is a gel-like aqueous solution to which a surfactant is added . The method for producing a microcapsule sheet according to claim 5 or 6, wherein the aqueous solution to which the surfactant is added is an aqueous gelatin solution . The method for producing a microcapsule sheet according to claim 5 or 6, wherein the aqueous solution to which the surfactant is added is an aqueous solution of an energetic curable resin. The method for producing a microcapsule sheet according to claim 1, wherein a substance that is dried and solidified is added to the protective liquid.
10. The method for producing a microcapsule sheet according to claim 9, wherein the substance to be dried and solidified is gelatin . The method of manufacturing a microcapsule sheet according to claim 1, wherein the self-assembly is performed by an external force generated by an external force means provided in the vicinity of the container and gravity . 3. The method of manufacturing a microcapsule sheet according to claim 2, wherein the self-assembly is performed by external force generated by external force means provided in the vicinity of the self-integration thin film and gravity. The method of manufacturing a microcapsule sheet according to claim 11 or 12, wherein the external force generated by the external force means is one or more of vibration, centrifugal force, and magnetic force . The method for producing a microcapsule sheet according to any one of claims 5 to 7, wherein the adhesion and solidification of the microcapsules in the sheet forming step is performed by drying a capsule membrane material of the microcapsules . The method for producing a microcapsule sheet according to claim 8, wherein the adhesion and solidification of the microcapsules in the sheet forming step is performed by irradiating energy to an energetic curable resin contained in a capsule membrane material of the microcapsules . The series of processes of the injection process, the encapsulation process, and the sheet forming process are performed in an atmosphere having an atmospheric pressure lower than the atmospheric pressure controlled by the environment maintaining means. The manufacturing method of the microcapsule sheet | seat as described in a term . The series of processes of the injection step, the encapsulation step, and the sheet forming step are performed in an atmosphere at a temperature equal to or higher than the solation temperature of the capsule membrane material controlled by the environment maintaining means. The manufacturing method of the microcapsule sheet | seat of any one . The series of processes of the spraying step, the encapsulation step, and the sheet forming step are performed in an atmosphere in which the humidity controlled by the environment maintaining means is saturated. The manufacturing method of the microcapsule sheet | seat of description . An injection means for granulating and injecting a core material, an encapsulating means for coating the capsule membrane material by passing the core material through a thin film formed of a capsule membrane material, and a microcapsule coated with the capsule membrane material. It comprises sheet forming means for layering and solidifying, and environmental maintenance means for controlling atmospheric pressure, temperature and humidity,
The microcapsule sheet according to any one of claims 16 to 18, wherein the spraying unit, the encapsulating unit, and the sheet forming unit are arranged in an atmosphere controlled by the environment maintaining unit, and a series of processes by the units is performed. An apparatus for producing a microcapsule sheet, characterized by performing the method .

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