A circulating spray system suitable for adding active ingredients to freeze-dried facial masks

Abstract

This invention discloses a circulating spray system for adding active ingredients to freeze-dried facial masks. It comprises a support frame, an active ingredient tank, a spray device, and an active ingredient recovery device. The spray device includes a liquid pump, a supply pipeline, and a nozzle assembly. The outlet of the active ingredient tank is connected to the nozzle assembly via the liquid pump and the supply pipeline. The supply pipeline is equipped with a throttle valve, a distribution valve, and a pressure gauge. The active ingredient recovery device consists of an all-around cover and an active ingredient recovery unit. The all-around cover is positioned at the top of the support frame. The active ingredient tank is placed lower than the liquid receiving tank. The nozzle assembly includes two sets of adjustable-angle spray heads arranged vertically opposite each other. The all-around cover has through holes on its front and rear sides for the mask fabric to pass through. This circulating spray system for adding active ingredients to freeze-dried facial masks can quantitatively and uniformly add active ingredients to the freeze-dried mask, improving the active ingredient recovery rate and increasing the amount of active ingredients deposited inside and on the back of the mask fabric.

Description

Technical Field

[0001] This utility model relates to a circulating spray system suitable for adding active ingredients to freeze-dried facial masks. Background Technology

[0002] Freeze-dried masks, also known as freeze-dried powder masks or freeze-dried solid essence masks, are masks made by fusing mask essence, moisturizers, active ingredients, and other components with mask fibers, then using vacuum freeze-drying to sublimate the water and form a solid dry film. After freeze-drying, heat-labile, easily oxidized, and easily degraded components can retain a certain level of activity. Due to the freeze-drying characteristics of these products, and considering product claims, formula gentleness, and efficacy, freeze-dried masks typically do not contain additional preservatives in their overall formula. The mask essence provides structural support for the freeze-dried mask and primarily affects the product's feel and stability. The production process typically involves heating the aqueous phase to 80-85°C, thoroughly stirring and dissolving water-soluble components such as thickeners and moisturizers; heating the oil phase to 80-85°C, thoroughly stirring and melting the oil-soluble components; high-temperature homogenization and emulsification of the water and oil phases; stirring and cooling to a certain temperature; adding heat-sensitive ingredients such as low-temperature active ingredients; and mixing thoroughly. Unlike regular face masks, which involve first filling the mask sheet into a bag and then filling it with the mask essence, freeze-dried face masks, based on the characteristics of their product formula, have a process where the mask essence is fused with the mask sheet fibers. In mass production, a high-temperature pre-drying process is typically used before vacuum freeze-drying to sublimate the moisture and form a solid dry film mask, which is then finally packaged into a bag.

[0003] Current cosmetic spraying technology typically involves storing the liquid material in a storage tank and then atomizing it using air pressure to form small droplets for direct application to the skin or a carrier membrane. This method has the following drawbacks:

[0004] (1) The active ingredients of freeze-dried masks are added directly to the mask essence. Due to the product characteristics, no preservatives are added and the water content is high at this stage. Under these circumstances, it is easier to cause overall microbial contamination and inactivation of easily oxidized and degraded components in the active ingredients.

[0005] (2) The active ingredients of the freeze-dried mask are directly added to the mask stock solution. During the drying process of freeze-dried mask production, the active ingredients of the freeze-dried mask decompose and the effective ingredients are deactivated under high temperature conditions.

[0006] (3) Conventional spraying technology cannot spray the material quantitatively and uniformly. Due to its single-sided spraying, it will cause the material to be deposited on one side and the material distribution will be uneven. In order to ensure the spraying effect, the material droplets are atomized, which will cause the spray to escape and further increase the loss rate of active pharmaceutical ingredients.

[0007] (4) The equipment for the overall freeze-dried mask production process is fixed in location, occupies a large area, has low production line flexibility, and is not convenient to operate when switching production. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circulating spray system suitable for adding active ingredients to freeze-dried facial masks. It can be used for the separate addition of active ingredients, avoiding the decomposition of active ingredients under high temperature conditions and microbial contamination or inactivation of active ingredients caused by high moisture content that may be encountered in the production of freeze-dried facial masks. It can quantitatively and uniformly add active ingredients to freeze-dried facial masks, improve the recovery rate of active ingredient solution, and increase the amount of active ingredients deposited inside and on the back of the mask.

[0009] The technical solution to achieve the above objective is: a circulating spray system suitable for adding active ingredients to freeze-dried facial masks, comprising a support frame, an active ingredient tank, a spray device, and an active ingredient recovery device, wherein:

[0010] The spraying device includes a liquid pump, a liquid supply pipeline, and a nozzle assembly. The outlet of the active ingredient tank is connected to the nozzle assembly through the liquid pump and the liquid supply pipeline. The liquid supply pipeline is equipped with a throttle valve, a distribution valve, and a pressure gauge.

[0011] The active ingredient recovery device consists of an all-around cover and an active ingredient recovery unit. The all-around cover is located at the top of the support frame and is composed of four wall panels, a top panel, and a bottom panel. The bottom panel is inclined downwards from both sides towards the middle along the width direction, and a recovery port is opened at the lowest point of the bottom panel, which is located in the middle of the all-around cover. The active ingredient recovery unit includes a liquid receiving tank and a recovery pipeline. The liquid receiving tank is located inside the recovery port, and a filter is installed at the upper opening of the liquid receiving tank. The outlet of the liquid receiving tank is connected to the active ingredient tank through the recovery pipeline.

[0012] The active ingredient tank is placed at a lower position than the liquid receiving tank;

[0013] The nozzle assembly includes two sets of adjustable angle spray nozzles arranged vertically opposite each other. The front and rear sides of the all-around cover are provided with through holes for the membrane cloth to pass through. When the membrane cloth passes through the through holes, the two sets of adjustable angle spray nozzles are located above and below the membrane cloth, respectively.

[0014] The above-mentioned circulating spray system for adding active ingredients to freeze-dried facial masks includes an active ingredient tank comprising a temperature-controlled tank, a stirrer and a sensor disposed therein. The temperature-controlled tank is used to hold the active ingredients required for the freeze-dried facial mask, and the sensor is used to monitor the weight and liquid level of the contents of the temperature-controlled tank.

[0015] The above-mentioned circulating spray system for adding active ingredients to freeze-dried facial masks includes two sets of adjustable angle spray heads that spray alternately onto the upper and lower surfaces of the mask fabric.

[0016] The aforementioned circulating spray system for adding active ingredients to freeze-dried facial masks includes a lockable caster at the bottom of the support frame.

[0017] The circulating spray system of this invention, suitable for adding active ingredients to freeze-dried facial masks, has the following beneficial effects:

[0018] (1) It can achieve staggered spraying of adjustable angle opposite nozzles, and is designed with full coverage to avoid single-sided deposition of material and uneven distribution of material. It can quantitatively add active ingredients to freeze-dried film and effectively change the movement trajectory and deposition state of active ingredient droplets, thereby affecting the recovery rate of active ingredient solution, deposition rate of active ingredient film and uniformity.

[0019] (2) The droplets that detach from the membrane cloth are intercepted by the all-round cover and collected in the bottom liquid receiving tank. After passing through the active substance recovery device with a filter to prevent impurities from clogging the pipeline, the active substance solution is returned to the active substance tank. The flow rate design applies the Venturi principle. By using its own weight and negative suction to absorb the material in the liquid receiving tank, the active substance solution recovery rate can be significantly improved and the material loss can be reduced.

[0020] (3) The active ingredient tank includes a temperature-controlled tank for storing active ingredients, a stirrer for use, and sensors for sensing internal weight and liquid level, which ensures material stability and production controllability.

[0021] (4) The bottom of the support frame is equipped with lockable casters to meet the needs of equipment installation and movement, and to provide convenience for production. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of the circulating spray system for adding active ingredients to freeze-dried facial masks according to this utility model;

[0023] Figure 2 This is a front view of the circulating spray system of the present invention, which is suitable for adding active ingredients to freeze-dried facial masks.

[0024] Figure 3 This is a top view of the circulating spray system of the present invention, which is suitable for adding active ingredients to freeze-dried facial masks. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0026] Please see Figure 1 , Figure 2 and Figure 3 The preferred embodiment of this utility model is a circulating spray system suitable for adding active ingredients to freeze-dried facial masks, which consists of a support frame 10, an active ingredient tank 1, a spray device, and an active ingredient recovery device.

[0027] The active ingredient medicine box 1 includes a temperature-controlled medicine box, a stirrer and a sensor installed therein. The temperature-controlled medicine box is used to hold the active ingredients required for freeze-dried facial masks, the stirrer is used to mix the active ingredient solution in the temperature-controlled medicine box, and the sensor is used to monitor the weight and liquid level of the contents of the temperature-controlled medicine box.

[0028] The spraying device includes a liquid pump 2, a liquid supply line 11, and a nozzle assembly 6. The outlet of the active ingredient tank 1 is connected to the nozzle assembly 6 via the liquid pump 2 and the liquid supply line 33. The liquid supply line 11 is equipped with a throttle valve 3, a distribution valve 4, and a pressure gauge 5. The nozzle assembly 6 includes two sets of adjustable-angle spray heads arranged vertically opposite each other. The liquid pump 2 provides power for spraying and recovering the active ingredient solution. The two sets of adjustable-angle spray heads spray alternately onto the upper and lower surfaces of the membrane fabric. The spray head positions and angles are adjustable and equipped with filters. The throttle valve controls the pressure of the active ingredient solution; the distribution valve controls the pressure regulation and flow distribution of the active ingredient solution.

[0029] The active ingredient recovery device consists of an all-around cover 7 and an active ingredient recovery unit. The all-around cover 7 is located at the top of the support frame 10 and is composed of four wall panels, a top plate, and a bottom plate. The bottom plate slopes downwards from both sides towards the middle along its width, and a recovery port 72 is located at the lowest point of the bottom plate, in the middle of the all-around cover 7. The active ingredient recovery unit includes a liquid receiving tank 8 and a recovery pipeline 9. The liquid receiving tank 8 is located inside the recovery port 72, and a filter is installed at the upper opening of the liquid receiving tank 8. The outlet of the liquid receiving tank 8 is connected to the active ingredient tank 1 through the recovery pipeline 9. The active ingredient tank 1 is placed lower than the liquid receiving tank 8. The flow rate design of the recovery pipeline 9 utilizes the Venturi principle, using the weight of the liquid and negative pressure to draw the liquid from the liquid receiving tank 8, which can significantly improve the recovery rate of the active ingredient solution and reduce material loss.

[0030] The front and rear sides of the all-around cover 7 are provided with through holes 71 for the membrane cloth to pass through. When the membrane cloth passes through the through holes 71, two sets of adjustable angle spray heads are located above and below the membrane cloth, respectively. The active ingredient solution is sprayed onto the surface of the membrane cloth through the two sets of adjustable angle spray heads that are set in opposite directions, so as to deposit and add the active ingredient.

[0031] The support frame 10 mainly provides support for the main body of the equipment, and has lockable casters at the bottom to meet the needs of equipment installation and movement.

[0032] The all-around cover 7 can reduce the loss of active ingredient droplets and increase the deposition of active ingredient droplets. The all-around cover 7 intercepts the droplets that have detached from the membrane cloth and collects them in the liquid receiving tank 8. After passing through the recovery pipeline 9, the intercepted active ingredient solution is returned to the active ingredient tank 1, reducing the loss of active ingredient and thus achieving the purpose of reducing the loss of active ingredient droplets and increasing the deposition of active ingredient droplets.

[0033] This invention relates to a circulating spray system for adding active ingredients to freeze-dried facial masks. During use, the low-temperature active ingredients required for freeze-dried masks are not directly added to the high-moisture mask material, but are instead sprayed separately onto the mask surface through this circulating spray system. This achieves uniform addition of active ingredients during the low-temperature stage and reduces loss. By adjusting the separate addition of active ingredients and spraying the freeze-dried mask active ingredient components individually, the overall risk of microbial contamination and the deactivation of easily oxidized and degraded components in the active ingredients are reduced. Simultaneously, it avoids the deactivation and decomposition of active ingredients under the high-temperature conditions that may be encountered during the production of freeze-dried masks.

[0034] In summary, the circulating spray system of this invention, suitable for adding active ingredients to freeze-dried facial masks, can quantitatively and uniformly add active ingredients to freeze-dried facial masks, improve the recovery rate of active ingredient solution, and increase the amount of active ingredients deposited inside and on the back of the mask.

[0035] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A recirculating spray system suitable for lyophilized mask active addition, characterized in that, It consists of a support frame, an active ingredient tank, a spraying device, and an active ingredient recovery device, wherein: The spraying device includes a liquid pump, a liquid supply pipeline, and a nozzle assembly. The outlet of the active ingredient tank is connected to the nozzle assembly through the liquid pump and the liquid supply pipeline. The liquid supply pipeline is equipped with a throttle valve, a distribution valve, and a pressure gauge. The active ingredient recovery device consists of an all-around cover and an active ingredient recovery unit. The all-around cover is located at the top of the support frame and is composed of four wall panels, a top panel, and a bottom panel. The bottom panel is inclined downwards from both sides towards the middle along the width direction, and a recovery port is opened at the lowest point of the bottom panel, which is located in the middle of the all-around cover. The active ingredient recovery unit includes a liquid receiving tank and a recovery pipeline. The liquid receiving tank is located inside the recovery port, and a filter is installed at the upper opening of the liquid receiving tank. The outlet of the liquid receiving tank is connected to the active ingredient tank through the recovery pipeline. The active ingredient tank is placed at a lower position than the liquid receiving tank. The nozzle assembly includes two sets of adjustable angle spray nozzles arranged vertically opposite each other. The front and rear sides of the all-around cover are provided with through holes for the membrane cloth to pass through. When the membrane cloth passes through the through holes, the two sets of adjustable angle spray nozzles are located above and below the membrane cloth, respectively.

2. A recirculating spray system suitable for lyophilized facial mask active addition according to claim 1, wherein, The two sets of adjustable angle spray heads spray alternately onto the upper and lower surfaces of the membrane.

3. A recirculating spray system suitable for lyophilized facial mask active addition according to claim 1, wherein, The bottom of the support frame is equipped with lockable casters.

Images