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 part which provides a first flow path through which the first fluid can flow, and which can provide an absorption member in which the mixed raw material is stored beforehand and through which the first fluid can pass, on the first flow path.

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 allowing the first fluid to flow, and an absorption component 130 is provided on the first flow path 122, which stores a mixed raw material M in advance and allows the first fluid to pass through.

[0013] In addition, a microfluidic chip may be provided, wherein the absorbing member 130 includes portions having different densities from each other, and the mixed raw material M is disposed on the portion having a relatively large density.

[0014] In addition, a microfluidic chip may be provided, wherein the absorption component 130 includes: a first absorption component 132 for allowing the first fluid to pass through; and a second absorption component 134 storing the mixed raw material M, which is provided by a medium denser than that of the first absorption component 132 .

[0015] In addition, a microfluidic chip may be provided, wherein when the first flow path 122 is cut along a direction perpendicular to a direction in which the first flow path 122 extends, the absorbing component 130 is disposed on an entire cross-section of the first flow path 122 .

[0016] In addition, a microfluidic chip may be provided, wherein the first fluid flows through the absorption component 130 on the first flow path 122 , and the speed of the first fluid on the first absorption component 132 is faster than the speed of the first fluid on the second absorption component 134 .

[0017] In addition, a microfluidic chip may be provided, wherein the first absorption component 132 is provided by a sponge having a relatively sparse medium, and the second absorption component 134 is provided by a sponge having a relatively dense medium.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Effects of the Invention

[0022] 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.

[0023] In addition, it is possible to produce cosmetic contents that can be smoothly stirred. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a diagram showing a state of the microfluidic chip 10 according to an embodiment of the present invention.

[0025] Figure 2 Is magnification Figure 1 FIG. 1 is a diagram of the middle portion 120 of the microfluidic chip 10 .

[0026] Figure 3 Is magnification Figure 1 FIG. 1 is a diagram of a vortex portion 140 of a microfluidic chip 10 .

[0027] Figure 4 It is shown along Figure 1 The cross section is taken along the dotted line AA'.

[0028] Figure 5 It is shown along Figure 1 The cross section is taken along the dotted line BB'.

[0029] Figure 6 This is a diagram conceptually showing a cosmetics production device 1 including a microfluidic chip 10 according to the present embodiment.

[0030] Description of reference numerals:

[0031] 1: cosmetic 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, 124: second flow path, 129: confluence part, 130: absorption part, 132: first absorption part, 134: second absorption part, 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

[0032] 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.

[0033] 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'.

[0034] 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 an absorption component 130 is provided on the first flow path 122, which stores a mixed raw material M in advance and allows the first fluid to pass through.

[0035] In addition, 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 .

[0036] In this embodiment, an absorbing member 130 for providing the mixed raw material M may be disposed on the middle portion 120 .

[0037] In addition, the absorption component 130 may include: a first absorption component 132 provided by a relatively sparse medium; and a second absorption component 134 provided by a relatively dense medium. The mixed raw material M may be absorbed and stored in the second absorption component 134 .

[0038] As described above, the absorbent member 130 may include portions having different densities (eg, the first absorbent member 132 and the second absorbent member 134 ), and the mixed raw material M may be disposed on the portion having a relatively high density (eg, the second absorbent member 134 ).

[0039] Thus, the first fluid can first pass through the first absorbing member 132 having a relatively low density, thereby pushing the air (bubbles) existing on the first absorbing member 132 toward the downstream of the first absorbing member 132 .

[0040] In this case, since the first fluid and the mixed raw material M are mixed after the air (or bubbles) present in the absorbing member 130 is removed, the first fluid and the mixed raw material M can be easily mixed.

[0041] In this embodiment, more than one type of fluid may be injected into the microfluidic chip 10 from the outside.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] In this embodiment, various cosmetic contents (eg, emulsions) can be produced according to the types of mixed raw materials M previously stored in the microfluidic chip 10 .

[0046] In this embodiment, a case where a mixed raw material M is stored in the microfluidic chip 10 is described as an example.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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).

[0058] 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.

[0059] The microfluidic chip 10 may include an inlet portion 110 , a middle portion 120 , a vortex portion 140 , and a discharge portion 150 .

[0060] 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.

[0061] 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.

[0062] 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 .

[0063] 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 .

[0064] The middle portion 120 may include a first flow path 122 through which the first fluid may flow.

[0065] An absorbing member 130 storing the mixed raw material M in advance may be provided on the first flow path 122 .

[0066] For example, the absorbent 130 may be provided by a sponge having a dense region (e.g., the second absorbent 134) and a sparse region (e.g., the first absorbent 132). That is, the absorbent 130 may include portions having different densities, and the mixed material M is disposed on the portion having a relatively large density.

[0067] Specifically, the absorption component 130 may include: a first absorption component 132 through which the first fluid can pass; and a second absorption component 134 storing the mixed raw material M provided by a medium denser than that of the first absorption component 132 .

[0068] The second absorbing component 134 may be disposed at a lower side than the first absorbing component 132. The lower side may be understood as a direction in which the first fluid exerts gravity toward the direction in which the mixed raw material M is disposed when the first fluid flows through the absorbing component 130. Figure 4 As a reference, the lower side can be understood as the -z axis direction.

[0069] The first fluid may pass through both the first absorbent member 132 and the second absorbent member 134 .

[0070] However, since the first absorbent member 132 is provided by a material having a relatively lower density than that of the second absorbent member 134 , the first fluid flows relatively faster on the first absorbent member 132 than on the second absorbent member 134 .

[0071] The first fluid may first pass through the first absorbent component 132 and then pass through the second absorbent component 134 .

[0072] First, the first fluid may pass through the first absorbing member 132 while pushing air (bubbles) to the outside of the first absorbing member 132 .

[0073] Then, the first fluid can push the mixed raw material M absorbed by the second absorbing member 134 to the outside of the second absorbing member 134 while passing through the second absorbing member 134. Thus, the mixed raw material M and the first fluid are mixed to generate a mixed fluid.

[0074] The absorbing member 130 may be disposed on a path of the first flow path 122 through which the first fluid flows.

[0075] Specifically, when the first flow path 122 is cut in a direction BB′ perpendicular to the direction in which the first flow path 122 extends, the absorbing member 130 may be disposed on the entire cross section of the first flow path 122. That is, the first fluid is provided to pass through the absorbing member 130 without fail.

[0076] When the absorbing member 130 is viewed from above (xy plane), the absorbing member 130 may be formed into an elliptical shape with the direction in which the first flow path 122 extends as the major axis (refer to Figure 2 ).

[0077] When the first flow path 122 is cut in a direction BB' perpendicular to the direction in which the first flow path 122 extends, the first absorbing member 132 may be disposed on the upper side and the second absorbing member 134 may be disposed on the lower side (see Figure 5 ).

[0078] In addition, when the first flow path 122 is cut in the direction AA' extending from the first flow path 122, the first absorbing member 132 may be arranged on the upper side and the second absorbing member 134 may be arranged on the lower side (refer to Figure 4 ).

[0079] In addition, the length of the absorbing member 130 measured in the direction AA′ in which the first flow path 122 extends may be greater than the length of the absorbing member 130 measured in the direction BB′ perpendicular to the direction in which the first flow path 122 extends.

[0080] In this embodiment, the length of the absorbing member 130 measured in the direction AA' extending the first flow path 122 is expressed as the major axis length, and the length of the absorbing member 130 measured in the direction BB' perpendicular to the direction in which the first flow path 122 extends is expressed as the minor axis length.

[0081] In this embodiment, the major axis length of the absorption member 130 may be greater than the minor axis length. For example, the major axis length of the absorption member 130 may be 2 to 3 times the minor axis length of the absorption member 130 .

[0082] In addition, the area of ​​the absorbing member 130 may be provided to be 1 / 2 or more of the area of ​​the entire microchannel of the microfluidic chip.

[0083] In this embodiment, the first injection flow path 113, the second injection flow path 115, the second flow path 124, the vortex formation flow path 141, and the exhaust flow path 151 can be provided by fine flow paths with a diameter of 0.5 mm to 1 mm, and the first flow path 122 equipped with the absorption component 130 can be provided by a flow path with a diameter exceeding 1 mm. In other words, in the entire flow path of the microfluidic chip 10, the remaining flow paths except the first flow path 122 can be described as fine flow paths, and the first flow path 122 can be described as a general flow path.

[0084] For example, the average diameter of the first flow path 122 provided with the absorption member 130 may be provided to be 10 times or more than that of the vortex flow forming flow path 141. In this case, by removing air (bubbles) from the absorption member 130, a vortex can be formed in the fluid in the vortex flow forming flow path 141, thereby effectively achieving stirring of the cosmetic content.

[0085] While the first absorbing member 132 is moving, the first fluid pushes away the air (air bubbles) present in the first absorbing member 132 and can be mixed with the mixed raw material M stored in the second absorbing member 134 .

[0086] At this time, the mixed raw material M stored in the second absorbing member 134 may rise to the upper side to be mixed with the first fluid, and may be pushed to the downstream side to be mixed with the first fluid.

[0087] Among them, the downstream can be understood as a position arranged at the relatively rear side based on the direction of the first fluid flow. For example, the vortex forming flow path 141 described later can be understood as a structure arranged downstream of the first injection flow path 113. On the contrary, the upstream can be understood as a position arranged at the 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 forming flow path 141.

[0088] In this embodiment, when the mixed raw material M is provided in the form of a fluid, the viscosity of the mixed raw material M may be provided to be lower than the viscosity of the first fluid.

[0089] In this case, the mixed material M may be stored in the second absorption part 134 while the first fluid flows through the first absorption part 132 , and when the first fluid passes through the second absorption part 134 , the mixed material M may be pushed away by the first fluid and move downstream.

[0090] 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.

[0091] In this embodiment, although the absorption member 130 is not provided on the second flow path 124, the absorption member may be provided on the second flow path 124. In this case, the absorption member provided on the second flow path 124 may also provide the mixed raw material M and other raw materials that can be mixed with the second fluid.

[0092] The first fluid and the mixed material M may be mixed in the middle portion 120 to generate a mixed fluid.

[0093] In addition, the middle portion 120 may include a confluence portion 129 where the mixed fluid and the second fluid merge.

[0094] The second flow path 124 and the first flow path 122 may be connected at a junction 129 .

[0095] 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. In this case, the first fluid and the mixed raw material M may be mixed more easily by the flow rate of the second fluid introduced into the confluence portion 129.

[0096] 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.

[0097] The middle portion 120 may include a second flow path 124 through which the second fluid can flow, and a confluence portion 129 where the first flow path 122 and the second flow path 124 merge. The first fluid, the mixed material M, and the second fluid may be mixed at the confluence portion 129 to generate a mixed fluid.

[0098] 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 .

[0099] 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).

[0100] 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.

[0101] 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.

[0102] A plurality of vortex flow forming paths 141 may be continuously formed in the first region A1 of the vortex portion 140 .

[0103] 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.

[0104] 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.

[0105] 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).

[0106] 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.

[0107] 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.

[0108] The discharge portion 150 may extend from the vortex portion 140 .

[0109] 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.

[0110] 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 .

[0111] 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 .

[0112] Figure 6 This is a diagram conceptually showing a cosmetics production device 1 including a microfluidic chip 10 according to the present embodiment.

[0113] 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.

[0114] The microfluidic chip 10 may be provided to be replaceable relative to the main body 300 .

[0115] 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.

[0116] 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 .

[0117] 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 .

[0118] 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.

[0119] An operation button 330 for executing a work for producing the cosmetic content may be provided at one side of the main body 300 .

[0120] 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.

[0121] 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 .

[0122] 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 .

[0123] In addition, the above-mentioned microfluidic chip 10 may be provided to be detachable with respect to the main body 300 .

[0124] The microfluidic chip 10 can receive the first fluid from the first reservoir 210 and receive the second fluid from the second reservoir 220 .

[0125] The operation process of the cosmetics manufacturing device 1 will be described below.

[0126] 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.

[0127] 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 .

[0128] The microfluidic chip 10 according to the embodiment of the present invention is described above by specific embodiments, but it is only an example, and the present invention is not limited thereto, but should be interpreted as having the widest range based on the basic concept disclosed in this specification. Those skilled in the art can implement the unproposed embodiments by combining and replacing the disclosed embodiments, but this does not depart from the scope of rights 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 an absorbent member in which a mixed raw material is stored in advance and through which the first fluid can pass.

2. The microfluidic chip according to claim 1, wherein: The absorbent member includes portions having different densities from each other, and the mixed material is disposed on the portion having a relatively large density.

3. The microfluidic chip according to claim 1, wherein: The absorbent component comprises: A first absorbent component through which the first fluid can pass; and The second absorbent member stores the mixed raw material and is provided with a denser medium than the first absorbent member.

4. The microfluidic chip according to claim 1, wherein: When the first flow path is cut along a direction perpendicular to the direction in which the first flow path extends, the absorbing member is arranged on the entire cross section of the first flow path.

5. The microfluidic chip according to claim 3, wherein: The first fluid flows through the absorbing member in the first flow path, It is provided that the velocity of the first fluid on the first absorbent member is faster than the velocity of the first fluid on the second absorbent member.

6. The microfluidic chip according to claim 3, wherein: The first absorbent member is provided by a sponge having a relatively sparse medium, The second absorbent member is provided by a sponge having a relatively dense medium.

7. 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.

8. The microfluidic chip according to claim 7, 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.

9. 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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