Microfluidic chip

Abstract

The invention relates to a micro-fluidic chip. According to one embodiment, there may be provided a microfluidic chip comprising: an inlet part providing a first injection port into which a first fluid is injected; and an intermediate section that provides a first flow path through which the first fluid can flow, and that provides, on the first flow path, a raw material storage section that stores a mixed raw material that can be mixed with the first fluid.

Description

Technical Field

[0001] The invention relates to a microfluidic chip. Background Art

[0002] Cosmetics are used for beauty and skin health, and various devices have been proposed for manufacturing cosmetics. In particular, the market for customized cosmetics that reflect the skin condition and needs of users is gradually expanding, and various devices have been proposed for manufacturing such customized cosmetics.

[0003] In addition, in order to provide fresh cosmetics to consumers, various attempts have been made to produce customized cosmetics on site.

[0004] As part of this effort, there have been attempts to use microfluidic chips to create customized cosmetics.

[0005] However, when existing microfluidic chips inject fluid with a time difference into a fine flow path with a complex design (twisting, crossing, etc.) or use more than two fluids, there is a problem that the flow of the fluid is hindered or the mixing of the fluid cannot be effectively completed due to the air (bubbles) present in the fine flow path.

[0006] [Prior art literature]

[0007] [Patent Literature]

[0008] Korean Patent Gazette No. 10-0222000 (granted on June 30, 1999) Summary of the invention

[0009] Technical issues to be solved

[0010] A microfluidic chip according to one embodiment of the present invention is proposed to solve the above-mentioned problem, and its purpose is to mix fluids (first fluid and mixed raw material M) to produce smoothly stirred cosmetic contents after removing the air (bubbles) present inside the microfluidic chip.

[0011] Solution to the problem

[0012] According to one embodiment, a microfluidic chip can be provided, which includes: an inlet portion 110, providing a first injection port 112 for injecting a first fluid; and an intermediate portion 120, providing a first flow path 122 for the flow of the first fluid, and providing a raw material storage portion 130 on the first flow path 122 for storing a mixed raw material M that can be mixed with the first fluid.

[0013] In addition, a microfluidic chip can be provided, wherein the raw material storage section 130 includes: a side wall 132, which surrounds the side of the mixed raw material M and does not allow the mixed raw material M to leak; and a permeable membrane 134, which is arranged on the upper side of the side wall 132 and surrounds the top of the mixed raw material M, and the permeable membrane 134 allows the mixed raw material M to selectively pass through.

[0014] In addition, a microfluidic chip can be provided, wherein an upper flow path 1222 for allowing the first fluid to flow is provided on the upper side of the permeable membrane 134, and while the first fluid moves in the upper flow path 1222, the mixed raw material M stored in the raw material storage section 130 passes through the permeable membrane 134 and is mixed with the first fluid.

[0015] In addition, a microfluidic chip may be provided, wherein the first flow path 122 includes an upper flow path 1222 disposed on an upper side of the permeable membrane 134 , and a diameter D1 of the upper flow path 1222 is provided to be smaller than an average diameter of the first flow path 122 .

[0016] In addition, a microfluidic chip may be provided, wherein the mixed raw material M is provided by a viscous fluid, and when the first fluid passes through an upper flow path 1222 disposed at an upper portion of the raw material storage portion 130, the mixed raw material M is mixed with the first fluid.

[0017] In addition, a microfluidic chip can be provided, wherein a mixed fluid of the first fluid and the mixed raw material M is formed on the first flow path 122, and the microfluidic chip 10 also includes: a vortex portion 140, which provides a vortex forming flow path 141 that causes a vortex to promote the mixing of the mixed fluid.

[0018] In addition, a microfluidic chip can be provided, wherein the vortex forming flow path 141 includes: a first rotating flow path 1411, guiding the entering mixed fluid to rotate in one direction; a second rotating flow path 1412, guiding the mixed fluid rotating in the one direction to rotate in another direction; and a direction conversion flow path 1413, changing the rotation direction of the mixed fluid between the first rotating flow path 1411 and the second rotating flow path 1412.

[0019] In addition, a microfluidic chip can be provided, wherein the inlet portion 110 also includes a second injection port 114 for injecting a second fluid, and the middle portion 120 also includes: a second flow path 124 for allowing the second fluid to flow; and a confluence portion 129, which allows the first flow path 122 and the second flow path 124 to converge, and the first fluid, the mixed raw material M and the second fluid are mixed at the confluence portion 129 to generate a mixed fluid.

[0020] Effects of the Invention

[0021] A microfluidic chip according to an embodiment of the present invention can mix fluids (a first fluid and a mixed material M) after removing air (bubbles) present inside the microfluidic chip.

[0022] In addition, it is possible to produce cosmetic contents that can be smoothly stirred. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1 is a diagram showing a state of the microfluidic chip 10 according to an embodiment of the present invention.

[0024] Figure 2 Is magnification Figure 1 FIG. 1 is a diagram of the middle portion 120 of the microfluidic chip 10 .

[0025] Figure 3 Is magnification Figure 1 FIG. 1 is a diagram of a vortex portion 140 of a microfluidic chip 10 .

[0026] Figure 4 It is shown along Figure 1 The cross section is taken along the dotted line AA'.

[0027] Figure 5 It is shown along Figure 1 The cross section is taken along the dotted line BB'.

[0028] Figure 6 This is a diagram conceptually showing a cosmetics production device 1 including a microfluidic chip 10 according to the present embodiment.

[0029] Description of reference numerals:

[0030] 1: cosmetics manufacturing device, 10: microfluidic chip, 110: inlet, 112: first injection port, 113: first injection flow path, 114: second injection port, 115: second injection flow path, 120: middle part, 122: first flow path, 1222: upper flow path, 1224: side flow path, 124: second flow path, 129: confluence, 130: raw material storage part, 132: side wall, 134: permeable membrane, 140: vortex part, 141: Vortex forming flow path, 1411: first rotating flow path, 1412: second rotating flow path, 1413: direction conversion flow path, 142: connecting flow path, 150: discharge portion, 151: discharge flow path, 152: discharge hole, 200: fluid storage portion, 210: first storage portion, 220: second storage portion, 230: second insertion port, 300: main body, 310: first main body, 320: second main body, 330: operation button, 500: cosmetic container DETAILED DESCRIPTION

[0031] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. Meanwhile, when describing the present invention, if it is determined that the detailed description of the related known structures or functions can obscure the gist of the present invention, the detailed description thereof will be omitted.

[0032] Figure 1 1 is a diagram showing a state of a microfluidic chip 10 according to an embodiment of the present invention, Figure 2 Is magnification Figure 1 FIG. 1 is a diagram of the middle portion 120 of the microfluidic chip 10 , Figure 3 Is magnification Figure 1 FIG. 1 is a diagram of the vortex portion 140 of the microfluidic chip 10 , Figure 4 It is shown along Figure 1 The cross section cut by the dotted line A-A', Figure 5 It is shown along Figure 1 The cross section is taken along the dotted line BB'.

[0033] refer to Figures 1 to 5 According to an embodiment of the present invention, a microfluidic chip 10 may include: an inlet portion 110, providing a first injection port 112 for injecting a first fluid; and a middle portion 120, providing a first flow path 122 for the first fluid to flow, and a raw material storage portion 130 for storing a mixed raw material M that can be mixed with the first fluid is provided on the first flow path 122.

[0034] The microfluidic chip 10 may further include: a vortex portion 140 extending from the middle portion 120 ; and a discharge portion 150 extending from the vortex portion 140 .

[0035] In this embodiment, an upper flow path 1222 through which the first fluid can flow may be arranged on the upper side of the raw material storage unit 130 where the permeable membrane 134 is provided.

[0036] Thus, the first fluid can push away the air present in the upper flow path 1222, and then the first fluid and the mixed raw material M are mixed. In this case, since the first fluid and the mixed raw material M are mixed after the air (or bubbles) present in the fine flow path are removed, the first fluid and the mixed raw material M can be easily mixed.

[0037] In this embodiment, more than one type of fluid may be injected into the microfluidic chip 10 from the outside.

[0038] The microfluidic chip 10 of this embodiment can be understood as a device that generates cosmetic contents by mixing the mixed raw material M pre-stored inside the microfluidic chip 10 and the first fluid (or the first fluid and the second fluid) injected from the outside of the microfluidic chip 10.

[0039] In this embodiment, an example is given of introducing two fluids (a first fluid and a second fluid) into the microfluidic chip 10. However, the concept of the present invention is not limited thereto, and when only one fluid (e.g., the first fluid) is injected into the microfluidic chip 10, the second injection port 114 and the second flow path 124 connected to the second injection port 114 may not be provided.

[0040] In this embodiment, the mixed raw material M can be provided by a fluid, a powder dissolved in the first fluid, or a gel phase dissolved in the first fluid. In this embodiment, an example is given of a case where the mixed raw material M is provided by a viscous fluid.

[0041] In this embodiment, various cosmetic contents (eg, emulsions) can be produced based on the mixed raw material M previously stored in the microfluidic chip 10 .

[0042] In this embodiment, a case where a mixed raw material M is stored in the microfluidic chip 10 is described as an example.

[0043] The microfluidic chip 10 may be provided to be replaceable with respect to the cosmetic production apparatus 1 described later. For example, the microfluidic chip 10 may be provided to be sold separately, so that different kinds of cosmetic contents (eg, emulsions) can be produced by replacing only the microfluidic chip 10 for use.

[0044] In addition, mixed raw materials M having various components may be stored in the microfluidic chip 10 to produce various types of cosmetic contents (eg, emulsions) according to the user's preferences.

[0045] In this embodiment, the cosmetic contents may include: an emulsion mixed and emulsified by a first fluid, a second fluid and at least one of a mixed raw material M; a lotion solubilized by at least one of a first fluid, a second fluid and a mixed raw material M; and mixed water simply mixed by at least one of a first fluid, a second fluid and a mixed raw material M.

[0046] In this embodiment, the cosmetic contents discharged from the microfluidic chip 10 may be solubilized lotion, for example, solubilized lotion, skin care lotion, essence, perfume, etc.

[0047] In this embodiment, the cosmetic contents discharged from the microfluidic chip 10 may be emulsions. In this case, the cosmetic contents may include: an O / W (oil in water) emulsion prepared by uniformly dispersing a hydrophobic fluid such as oil in a hydrophilic fluid such as water in a small particle state, or a W / O (water in oil) emulsion prepared by uniformly dispersing a hydrophilic fluid in a hydrophobic fluid in a small particle state.

[0048] For example, when the cosmetic content is provided in the form of an emulsion, the first fluid may be provided by a hydrophilic fluid and the mixed raw material M may be provided by a hydrophobic fluid. Conversely, the first fluid may be provided by a hydrophobic fluid and the mixed raw material M may be provided by a hydrophilic fluid.

[0049] The microfluidic chip 10 of the present embodiment can be understood as a structure in which a micro flow path is formed inside a plate P provided by a flat plate shape.

[0050] Among them, the fine flow path may include: a first injection flow path 113 and a second injection port 114 formed in the inlet portion 110; a first flow path 122 formed in the middle portion 120; a vortex forming flow path 141 formed in the vortex portion 140; and a discharge flow path 151 formed in the discharge portion 150.

[0051] The cross section of the microchannel formed inside the microfluidic chip 10 may be circular or rectangular. The diameter of the microchannel may be 0.5 mm to 1 mm, preferably 0.6 mm to 0.8 mm.

[0052] As described above, by forming a fine flow path inside the microfluidic chip 10 , the flow rate of the fluid flowing along the fine flow path can be increased, thereby improving the efficiency of fluid mixing or fluid emulsification.

[0053] On the one hand, in this embodiment, the micro channels formed in the microfluidic chip 10 can form a single-layer route. The single-layer route can be understood as the micro channels being arranged on the same plane (xy plane).

[0054] Hereinafter, the case where two fluids (a first fluid and a second fluid) are introduced into the microfluidic chip 10 is described by way of example.

[0055] The microfluidic chip 10 may include an inlet portion 110 , a middle portion 120 , a vortex portion 140 , and a discharge portion 150 .

[0056] The inlet portion 110 may include a first injection port 112 for injecting a first fluid and a second injection port 114 for injecting a second fluid.

[0057] The first fluid and the second fluid may be provided by different types of fluids. However, the concept of the present invention is not limited thereto, and the first fluid and the second fluid may be provided by the same type of fluid.

[0058] The inlet portion 110 may further include a first injection channel 113 extending from the first injection port 112 , and a second injection channel 115 extending from the second injection port 114 .

[0059] The first injection flow path 113 of the inlet portion 110 may be connected to the first flow path 122 of the middle portion 120 , and the second injection flow path 115 of the inlet portion 110 may be connected to the second flow path 124 of the middle portion 120 .

[0060] The middle portion 120 may include a first flow path 122 through which the first fluid may flow.

[0061] A raw material storage unit 130 storing the mixed raw material M may be provided on the first flow path 122. As the first fluid passes through the first flow path 122, the mixed raw material M and the first fluid may be mixed.

[0062] Specifically, the raw material storage section 130 provided on the first flow path 122 of the middle section 120 may include: a side wall 132, which surrounds the side of the mixed raw material M and does not allow the mixed raw material M to leak; and a permeable membrane 134, which is arranged on the upper side of the side wall 132 and surrounds the top of the mixed raw material M.

[0063] Among them, the permeable membrane 134 can selectively allow the mixed raw material M to permeate.

[0064] The upper flow path 1222 may be disposed relatively above the raw material storage portion 130 .

[0065] The raw material storage part 130 may be arranged at a relatively lower side compared to the upper flow path 1222. The lower side may be understood as a direction in which the first fluid applies gravity to the direction in which the mixed raw material M is arranged when the first fluid passes through the upper flow path 1222.

[0066] As the first fluid passes through the upper side of the permeable membrane 134 , the mixed raw material M passes through the permeable membrane 134 due to the viscosity of the first fluid, and can be mixed with the first fluid.

[0067] An upper flow path 1222 through which the first fluid can flow may be provided on the upper side of the permeable membrane 134. Thus, after the air existing in the upper flow path 1222 flows out, the first fluid and the mixed raw material M can be mixed.

[0068] The raw material storage unit 130 may be disposed on a route of the first flow path 122 through which the first fluid flows.

[0069] The first flow path 122 can be understood as a flow path having a step formed from the raw material storage portion 130 .

[0070] Specifically, the diameter of the first flow path 122 where the raw material storage portion 130 is not arranged may be provided to be larger than the diameter of the first flow path 122 where the raw material storage portion 130 is arranged (specifically, the diameter D1 of the upper flow path 1222 ).

[0071] While the first fluid moves in the upper flow path 1222, the first fluid pushes away the air (bubbles) in the upper flow path 1222 and can mix with the mixed raw material M stored in the raw material storage section 130. At this time, the mixed raw material M can pass through the permeable membrane 134 and mix with the first fluid.

[0072] In this embodiment, when the mixed raw material M is provided as a fluid, the viscosity of the mixed raw material M may be provided to be smaller than the viscosity of the first fluid.

[0073] In this case, the mixed raw material M provided as a fluid may be arranged below the first fluid, and the first fluid may flow frictionally with the upper portion of the mixed raw material M. Thus, the mixed raw material M may be gradually mixed with the first fluid having a relatively low viscosity.

[0074] In addition, when the first fluid passes through the upper flow path 1222 disposed at the upper portion of the raw material storage portion 130 , the mixed raw material M may be mixed with the first fluid.

[0075] In addition, the first flow path 122 may include an upper flow path 1222 disposed on the upper side of the permeable membrane 134 .

[0076] At this time, the diameter D1 of the upper flow path 1222 may be provided to be smaller than the average diameter of the first flow path 122 .

[0077] In addition, a side flow path 1224 through which the first fluid can pass may be provided on the side of the side wall 132. In this case, the first fluid may flow along the upper flow path 1222 and the side flow path 1224.

[0078] The side wall 132 may be provided to have a certain height extending from the lower plate to the upper portion. The plate P may include an upper plate disposed at an upper portion of the fine flow path and a lower plate disposed at a lower portion of the fine flow path.

[0079] The side wall 132 may include a front side wall configured at a portion where the first fluid is introduced and a rear side wall configured at a portion where the first fluid flows out.

[0080] The front side wall and the rear side wall can be arranged perpendicular to the plate P (refer to Figure 4In this case, the first fluid may collide with the front side wall to form a vortex, and the first fluid generating the vortex may be more easily contacted with the mixed raw material M disposed inside the raw material storage portion 130 .

[0081] However, the concept of the present invention is not limited thereto, and the side wall 132 may include a front side wall configured on the portion where the first fluid is introduced and a rear side wall configured on the portion where the first fluid flows out, wherein the front side wall is inclined at a predetermined angle toward the direction in which the first fluid flows.

[0082] In addition, the middle portion 120 may provide a second flow path 124 through which the second fluid injected from the second injection port 114 may flow.

[0083] In this embodiment, although the case where the raw material storage section is not provided on the second flow path 124 is illustrated, the raw material storage section 130 described above may be provided on the second flow path 124. In this case, the raw material storage section provided on the second flow path 124 may also provide the mixed raw material M described above and raw materials that can be mixed with the second fluid as other raw materials.

[0084] The first fluid and the mixed material M may be mixed in the middle portion 120 to generate a mixed fluid.

[0085] In addition, the middle portion 120 may include a confluence portion 129 where the mixed fluid and the second fluid merge.

[0086] The second flow path 124 and the first flow path 122 may be connected at a junction 129 .

[0087] The average diameter of the second flow path 124 may be provided to be smaller than the average diameter of the first flow path 122 .

[0088] In this case, the first fluid and the mixed raw material M can be mixed more easily by the flow rate of the second fluid introduced into the confluent portion 129 .

[0089] In this embodiment, when the first fluid is introduced into the microfluidic chip 10, the mixed fluid can be understood as a fluid mixed with the first fluid and the mixed material M. In addition, when the first fluid and the second fluid are introduced into the microfluidic chip 10, the mixed fluid can be understood as a fluid mixed with the first fluid, the second fluid and the mixed material M.

[0090] The middle portion 120 may include: a second flow path 124 through which the second fluid can flow; and a merging portion 129 where the first flow path 122 and the second flow path 124 merge.

[0091] The first fluid, the mixed raw material M, and the second fluid may be mixed at the confluence portion 129 to generate a mixed fluid.

[0092] The vortex portion 140 may include a vortex forming flow path 141 that causes a vortex to promote mixing of the mixed fluid. The vortex forming flow path 141 may extend from the confluence portion 129 .

[0093] The vortex portion 140 may include a plurality of vortex forming flow paths 141 for inducing a vortex by converting a traveling direction of a fluid (or a mixed fluid).

[0094] For example, when the cosmetic content is provided in the form of an emulsion, the mixed fluid is broken into a particle form by the vortex generated in the vortex forming flow path 141, and an emulsion including emulsified particles whose size gradually decreases as they move downward can be generated. For example, the emulsified particles flowing in the second area A2 of the vortex portion 140 can be provided to be smaller than the emulsified particles flowing in the first area A1.

[0095] Emulsification can be understood as a technique for dispersing one of two fluids that do not mix with each other, such as water and oil, into small particles and arranging them in the other liquid in a stable state.

[0096] A plurality of vortex flow forming paths 141 may be continuously formed in the first region A1 of the vortex portion 140 .

[0097] In addition, a plurality of vortex flow forming channels 141 may be continuously formed in the second area A2 disposed downstream of the first area A1.

[0098] Here, the downstream can be understood as a position arranged at a relatively rear side based on the direction of the first fluid flow. For example, the vortex forming flow path 141 described below can be understood as a structure arranged downstream of the first injection flow path 113 .

[0099] On the contrary, the upstream can be understood as a position arranged at a relatively front side based on the direction of the first fluid flow. For example, the first injection flow path 113 can be understood as a structure arranged upstream of the vortex flow formation flow path 141.

[0100] The vortex flow forming flow path 141 formed in the first area A1 and the vortex flow forming flow path 141 formed in the second area A2 may be connected via a connecting flow path 142 , and the connecting flow path 142 may be formed of a linear fine flow path.

[0101] In this embodiment, the vortex forming flow path 141 is configured to rotate the incoming fluid in one direction (clockwise in this embodiment) and then rotate it in another direction (counterclockwise in this embodiment).

[0102] Specifically, each vortex forming flow path 141 may include: a first rotating flow path 1411, guiding the incoming mixed fluid to rotate in one direction; a second rotating flow path 1412, guiding the mixed fluid rotating in one direction to rotate in another direction; and a direction conversion flow path 1413, changing the rotation direction of the mixed fluid between the first rotating flow path 1411 and the second rotating flow path 1412.

[0103] When the cosmetic content is provided in the form of an emulsion, an emulsion can be formed in which the inner phase fluid cut into small pieces by the vortex forming flow path 141 stably exists in the outer phase fluid.

[0104] The discharge portion 150 may extend from the vortex portion 140 .

[0105] The discharge portion 150 may include a discharge flow path 151 extending from the vortex flow forming flow path 141 of the vortex portion 140 , and a discharge hole 152 that discharges the generated cosmetic content.

[0106] The discharge flow path 151 may be formed in a shape that extends in one direction after being bent at a predetermined angle (for example, 90 degrees) with the connection flow path 142 .

[0107] The discharge flow path 151 may include a portion where the width gradually increases from the vortex forming flow path 141 toward the discharge hole 152 .

[0108] Figure 6 This is a diagram conceptually showing a cosmetics production device 1 including a microfluidic chip 10 according to the present embodiment.

[0109] refer to Figure 6 The cosmetic manufacturing device 1 may include: a fluid storage portion 200, capable of storing a first fluid and a second fluid; the above-mentioned microfluidic chip 10, capable of transmitting at least one of the first fluid and the second fluid from the fluid storage portion 200; and a main body 300, accommodating the fluid storage portion 200 and the microfluidic chip 10.

[0110] The microfluidic chip 10 may be provided to be replaceable relative to the main body 300 .

[0111] The fluid storage part 200 may include: a first storage part 210 storing a first fluid; and a second storage part 220 storing a second fluid. The capacity of the first storage part 210 and the second storage part 220 may be a capacity for discharging the first fluid and the second fluid in one operation. However, the concept of the present invention is not limited thereto, and the capacity of the first storage part 210 and the second storage part 220 may be a capacity for discharging the first fluid and the second fluid in multiple operations.

[0112] In addition, the first storage portion 210 and the second storage portion 220 may be provided to be replaceable with respect to the body 300 .

[0113] The body 300 may include: a first body 310 formed with a first insertion port (not shown) providing a space for inserting the microfluidic chip 10 ; and a second body 320 formed with a second insertion port 230 providing a space for inserting the fluid storage unit 200 .

[0114] In the present embodiment, the first body 310 and the second body 320 are separately provided for description, but the first body 310 and the second body 320 may be one component formed integrally.

[0115] An operation button 330 for executing a work for producing the cosmetic content may be provided at one side of the main body 300 .

[0116] When the operation button 330 is pressed, the fluid stored in the fluid storage section 200 moves to the microfluidic chip 10, and is mixed and emulsified with the mixed raw material M previously stored in the microfluidic chip 10 to generate cosmetic contents (e.g., emulsion), which are then discharged to the outside of the microfluidic chip 10.

[0117] In addition, an identification portion (not shown) capable of identifying the type of the microfluidic chip 10 may be provided at the first insertion port of the main body 300 .

[0118] When the type of the microfluidic chip 10 is identified by the identification unit (not shown), the driving unit (not shown) controlled by the control unit (not shown) can apply pressure matching the type of the microfluidic chip 10 to the fine flow path of the microfluidic chip 10 .

[0119] In addition, the above-mentioned microfluidic chip 10 may be provided to be detachable with respect to the main body 300 .

[0120] The microfluidic chip 10 can receive the first fluid from the first reservoir 210 and receive the second fluid from the second reservoir 220 .

[0121] The operation process of the cosmetics manufacturing device 1 will be described below.

[0122] According to the control method of the cosmetic manufacturing device 1 of this embodiment, it may include: a step of inserting the microfluidic chip 10 into the main body 300; a step of identifying the type of the microfluidic chip 10 by an identification unit (not shown); a step of applying a preset pressure matching the type of the microfluidic chip 10 to the fine flow path of the microfluidic chip 10 by a driving unit (not shown), so that after the first fluid pushes away the air on the fine flow path, the first fluid and the mixed raw material M are mixed to generate a mixed fluid; and a step of generating cosmetic contents while allowing the mixed fluid to travel along the vortex forming flow path 141 formed on the vortex portion 140; and a step of discharging the cosmetic contents to the outside of the microfluidic chip 10.

[0123] The cosmetic contents discharged to the outside of the microfluidic chip 10 may be contained in the cosmetic container 500 disposed at the lower portion of the discharge hole 152 .

[0124] The microfluidic chip according to the embodiment of the present invention and the cosmetic manufacturing device including the same are described above through specific embodiments, but they are only examples, and the present invention is not limited thereto, but should be interpreted as having the widest scope based on the basic concept disclosed in this specification. Those skilled in the art can implement graphics of unproposed shapes by combining and replacing the disclosed embodiments, but this does not depart from the scope of the present invention. In addition, it should be clear that those skilled in the art can easily change or deform the disclosed embodiments based on this specification, and such changes or deformations also belong to the scope of rights of the present invention.

Claims

1. A microfluidic chip, wherein: include: An inlet portion, providing a first injection port for injecting a first fluid; as well as The middle part provides a first flow path through which the first fluid can flow, The first flow path is provided with a raw material storage section storing a mixed raw material that can be mixed with the first fluid.

2. The microfluidic chip according to claim 1, wherein: The raw material storage unit comprises: a side wall surrounding a side of the mixed raw material and not allowing the mixed raw material to leak; and a permeable membrane, arranged on the upper side of the side wall and surrounding the upper side of the mixed raw material; The permeable membrane selectively permeates the mixed raw material.

3. The microfluidic chip according to claim 2, wherein: An upper flow path through which the first fluid can flow is provided on the upper side of the permeable membrane, While the first fluid moves in the upper flow path, the mixed raw material stored in the raw material storage section passes through the permeable membrane and is mixed with the first fluid.

4. The microfluidic chip according to claim 2, wherein: The first flow path includes an upper flow path arranged on the upper side of the permeable membrane, The diameter of the upper flow path is provided to be smaller than an average diameter of the first flow path.

5. The microfluidic chip according to claim 2, wherein: The mixed raw material is provided by a viscous fluid. When the first fluid passes through an upper flow path disposed at an upper portion of the raw material storage portion, the mixed raw material is mixed with the first fluid.

6. The microfluidic chip according to claim 1, wherein: forming a mixed fluid of the first fluid and the mixed raw material on the first flow path; The microfluidic chip also includes: The vortex portion provides a vortex forming flow path for causing a vortex to promote mixing of the mixed fluid.

7. The microfluidic chip according to claim 6, wherein: The vortex forming flow path comprises: A first rotating flow path guides the mixed fluid entering to rotate in one direction; a second rotating flow path for guiding the mixed fluid rotating in the one direction to rotate in another direction; and The direction changing flow path changes the rotation direction of the mixed fluid between the first rotation flow path and the second rotation flow path.

8. The microfluidic chip according to claim 1, wherein: The inlet portion further comprises: The second injection port is used to inject the second fluid. The intermediate portion further comprises: a second flow path through which the second fluid can flow; and a confluence portion, where the first flow path and the second flow path merge, The first fluid, the mixed raw material, and the second fluid are mixed at the confluence portion to generate a mixed fluid.

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