Preparation method of cooking bench oil separation film and cooking bench protection method

Abstract

The invention relates to a cooking bench oil separation film preparation method and a cooking bench protection method.The cooking bench oil separation film preparation method comprises the steps that a starch solution is prepared, and the starch solution is prepared from, by mass, 10-20 parts of starch, 5-10 parts of baking soda and 70-85 parts of water; gelatinizing the starch solution at the temperature of between 70 and 85 DEG C for 10 to 20 minutes; coating the gelatinized starch solution on the surface of a cooking bench; heating the gelatinized starch solution by utilizing the waste heat of the cooking bench; and drying the gelatinized starch solution to form the thin film. The starch has good oil separation property and oil absorption property and can effectively prevent oil dirt generated during cooking from permeating to the surface of a cooking bench; the components of the film are environment-friendly, and the film can be used as wet garbage after being stripped from a cooking bench.

Description

Technical Field

[0001] The present application relates to the technical field of stove cleaning, and in particular to a method for preparing a stove oil-isolating film and a stove protection method. Background Art

[0002] The problem of oil stains on the stove has always been a problem in household kitchen cleaning. During the use of the stove, oil stains will splash and other reasons, resulting in dirt on the stove surface, which will quickly dry and solidify on the stove due to the high temperature conditions of the stove. Therefore, the stubborn stains caused by accumulation on the stove are difficult to clean.

[0003] The main reasons for the formation of oil stains on the stove are: First, oil stains are easily splashed onto the stove when cooking. During the cooking process, grease at high temperature is easy to splash and directly adhere to the surface of the stove. These greases will quickly solidify after cooling, forming sticky oil stains. Over time, these oil stains will harden and become more difficult to remove. Second, the oil stains that are not sucked away by the range hood when the range hood absorbs oil remain on the stove. Although the range hood has greatly reduced the problem of oil smoke in the kitchen, there is always a part of the oil stains that are not completely absorbed during the oil absorption process, but are suspended in the air and eventually fall on the stove. This kind of oil stain is usually relatively small, but it is also difficult to deal with when accumulated.

[0004] At present, there are several common cleaning methods for stoves:

[0005] 1. Use detergent to remove oil: Detergent is one of the common tools for cleaning oil stains on stoves. However, the detergents on the market are chemical reagents, which are not environmentally friendly and may be corrosive, causing damage to the stove.

[0006] 2. Cleaning with alkali: Alkali is a strong degreasing agent, especially suitable for removing stubborn oil stains. However, alkali is corrosive and will cause damage to the stove.

[0007] Therefore, how to protect the stove from oil pollution while taking environmental protection into consideration is an urgent problem to be solved. Summary of the invention

[0008] The present application proposes a method for preparing a stove oil-isolating film, which can protect the stove from oil pollution, take environmental protection into consideration, and will not cause damage to the stove.

[0009] In a first aspect, the present application provides a method for preparing a stove grease barrier film, comprising: A starch solution is prepared, wherein the starch solution comprises, by mass fraction, 10-20 parts of starch, 5-10 parts of baking soda, and 70-85 parts of water; Gelatinizing the starch solution at 70° C.-85° C.; Applying the gelatinized starch solution on the surface of the stove; Using the residual heat of the stove to heat the gelatinized starch solution; The gelatinized starch solution is dried into a film.

[0010] The film formed by starch has good oil isolation and oil absorption properties, which can effectively prevent the oil generated during cooking from penetrating into the surface of the stove. In addition, if the stove is oily before the starch solution is applied, the starch solution is applied to the oily stove. After the starch solution forms a film, the oil on the stove can be absorbed. After cooking, when the starch solution forms a film, the starch film can be peeled off from the stove. The composition of the film is environmentally friendly and can be used as wet garbage.

[0011] In some embodiments, it also includes: Adding the starch to the gelatinized starch solution for a second time, stirring and dissolving, to form a secondary solution; The step of applying the gelatinized starch solution on the surface of the stove comprises: applying the secondary solution on the surface of the stove; The step of utilizing the residual heat of the stove to heat the gelatinized starch solution includes: utilizing the residual heat of the stove to heat the secondary solution, and performing secondary gelatinization on the secondary solution.

[0012] In some embodiments, the second addition of the starch is 5-10 parts.

[0013] In some embodiments, 3-6 parts of baking soda are also added when the starch is added for the second time.

[0014] In some embodiments, the starch is potato starch.

[0015] In some embodiments, the thickness of the starch solution applied to the surface of the stove is 1 mm to 3 mm.

[0016] In some embodiments, the method of applying the gelatinized starch solution to the stove surface includes spraying or applying.

[0017] In some embodiments, the starch solution preparation step comprises: mixing 10-20 parts of starch, 5-10 parts of baking soda and 70-85 parts of water, stirring to dissolve; The gelatinization time is 5 to 20 minutes.

[0018] According to another aspect of the present application, a stove protection method is also provided, comprising: According to any of the above preparation methods, the thin film is formed on the surface of the stove; The film is peeled off from the cooktop to remove the oil stains formed on the film due to cooking.

[0019] According to another aspect of the present application, a stove top grease barrier film is also provided, and the stove top grease barrier film is prepared according to any of the preparation methods described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a stove grease separator according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments.

[0022] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved of this application, the following is a detailed description in conjunction with the specific embodiments listed. The embodiments recorded in this article are only used to more clearly illustrate the technical solutions of this application, and are therefore only used as examples, and cannot be used to limit the scope of protection of this application.

[0023] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0024] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0025] The preparation method of the stove oil separator in this embodiment can be prepared according to the following method.

[0026] 1. Prepare starch solution.

[0027] Mix 10-20 parts of starch, 5-10 parts of baking soda and 70-85 parts of water, stir and dissolve to form a uniform starch solution. In terms of mass fraction, the starch solution includes: 10-20 parts of starch, 5-10 parts of baking soda, and 70-85 parts of water. Among them, the starch can be potato starch, which has good film-forming properties.

[0028] The starch solution of this ratio has good coating properties after gelatinization, can be evenly applied on the surface of the stove, and can form a complete film after drying, which is not easy to crack.

[0029] 2. Gelatinization.

[0030] The starch solution is gelatinized at 70°C-85°C. The gelatinization time can be 5 minutes-20 minutes, for example, 5 minutes, 10 minutes, 10 minutes, 20 minutes, so that the starch solution is fully gelatinized. If the gelatinization time is too long, it will cause excessive decomposition of starch molecules, making the starch film structure loose, reducing strength and toughness, making it difficult to form a film, and affecting the peelability.

[0031] 3. Apply the gelatinized starch solution on the stove surface.

[0032] The expansion and hydration of starch molecular chains during the gelatinization process allow the molecular chains to bind to each other through hydrogen bonds and van der Waals forces to form a network structure. Therefore, when the gelatinized starch solution is applied to the stove surface, the starch molecular chains interact with each other and can be spread on the stove surface without gaps between the starch solutions.

[0033] The gelatinized starch solution can be applied to the stove surface by spraying or smearing. The spraying and smearing methods can be easily operated on the stove, and the amount of application is easy to control. The starch solution is applied to the stove surface with a thickness of 1 mm to 3 mm, such as 1 mm, 2 mm, and 3 mm. It can be easily dried to form a film, and the formed film is not easy to break.

[0034] 4. Use the residual heat from the stove to heat the gelatinized starch solution.

[0035] When using a stove to cook, the residual heat of the stove will heat the starch, dehydrate the starch solution, and accelerate the drying of the starch solution into a film. When cooking for up to 20 minutes, the starch solution can be quickly dehydrated and the starch solution can basically form a film.

[0036] 5. The gelatinized starch solution is dried into a film.

[0037] The residual heat from the stove can be used directly to dry the gelatinized starch solution into a film; or, the waiting time can be increased at the same time to allow the starch solution to dry into a film.

[0038] When the water evaporates, the solvent in the starch solution decreases and the distance between the starch molecular chains shortens. As the water decreases, the starch molecular chains gradually change from a solution state to a solid state, forming a three-dimensional network structure and eventually forming a film.

[0039] The film formed by starch has good oil isolation and oil absorption properties. Even when the starch solution is not completely dry, it can effectively prevent the oil generated during cooking from penetrating into the surface of the stove. Moreover, if the stove is oily before the starch solution is applied, the starch solution is applied to the oily stove. After the starch solution forms a film, the oil on the stove can be absorbed. After cooking, when the starch solution forms a film, the starch film can be peeled off from the stove. The composition of the film is environmentally friendly and can be used as wet garbage.

[0040] In some embodiments, in addition to the above steps, the following preparation steps may also be included.

[0041] Between step 2 and step 3, starch is added to the gelatinized starch solution for a second time, stirred, and the starch added for the second time is dissolved in the gelatinized starch solution to form a secondary solution. The amount of starch added for the second time is 5-10 parts (by mass fraction), such as 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts. When starch is added for the second time, 3-6 parts of baking soda (by mass fraction) can also be added, such as 3 parts, 4 parts, 5 parts, 6 parts of baking soda. Baking soda can enhance the toughness and strength of the film, and is beneficial to enhance the gelatinization efficiency of starch during the secondary gelatinization process, and can improve the speed and uniformity of film formation.

[0042] Starch is added to the gelatinized starch solution for the second time, so in step 3, the second solution is applied to the stove surface by spraying, smearing, etc. Because the newly added starch (secondary added starch) is not gelatinized, the viscosity of the second solution will not be too large after the second addition of starch, and it has good ductility, so it can be easily applied to the stove surface, and a film layer of suitable thickness can be easily formed on the stove surface.

[0043] In step 4, the residual heat of the stove is used to heat the secondary solution, and the secondary solution undergoes secondary gelatinization to enhance the strength and strippability of the film. At the same time, the residual heat of the stove will dry the secondary solution, causing the secondary solution to dry quickly into a film, which is easy to be peeled off from the stove.

[0044] Afterwards, the dried film is peeled off from the stove, and the oil stains on the film due to cooking will be taken away at the same time; and, if the stove is oily before the starch solution is applied, the starch solution is applied to the oily stove, and after the starch solution forms a film, the oil stains on the stove can be absorbed. After cooking, when the starch solution forms a film, the starch film can be peeled off from the stove. The composition of the film is environmentally friendly and can be used as wet garbage. Example 1

[0045] Mix 10 parts of starch, 5 parts of baking soda and 85 parts of water, stir and dissolve to form a uniform starch solution. Among them, potato starch is selected as starch. The starch solution is gelatinized at 70°C for 20 minutes. Apply the gelatinized starch solution on the surface of the stove, and the thickness of the starch solution on the surface of the stove is 1 mm. Use the residual heat of the stove to heat the gelatinized starch solution. The gelatinized starch solution is dried into a film.

[0046] In this embodiment, in order to facilitate the test, the stove environment can be simulated in the laboratory. For example, the gelatinized starch solution is applied to the surface of the tile to simulate the situation where the starch solution is applied to the stove; and the tile is placed in a constant temperature and humidity incubator to simulate the temperature and humidity of cooking in the kitchen.

[0047] In a real stove environment, the starch solution dries to form a film faster because the stove environment is a more ventilated environment. However, the simulated environment in the laboratory is more consistent, which can better compare the film-forming properties of each starch solution in different embodiments. Example 2

[0048] The difference between Example 2 and Example 1 is: Mix 15 parts of starch, 7.5 parts of baking soda and 77.5 parts of water to form a starch solution; The gelatinization temperature of the starch solution was 75°C, and the gelatinization time was 10 minutes.

[0049] Figure 1 The film prepared according to Example 2 is shown. The starch solution in Example 2 is applied on the stove. Figure 1 The left picture in the figure shows the appearance of starch solution before the stove is used for cooking. When cooking, the stove heats the starch solution, and the starch solution is dehydrated and dried to form a film. Figure 1 As shown in the right picture, the dried film can be easily peeled off from the cooktop without being torn. Example 3

[0050] The difference between Example 3 and Example 1 is: Mix 20 parts of starch, 10 parts of baking soda and 70 parts of water to form a starch solution; The gelatinization temperature of the starch solution was 85°C, and the gelatinization time was 5 minutes.

[0051] The thickness of the starch solution applied on the stove surface is 2 mm. Example 4

[0052] The difference between Example 4 and Example 2 is: Starch is added to the gelatinized starch solution for a second time to form a secondary solution, wherein the amount of the starch added for the second time is 10 parts.

[0053] Apply the secondary solution on the surface of the stove. Use the residual heat of the stove to heat the secondary solution; the secondary solution dries to form a film.

[0054] In this embodiment, in order to facilitate the test, the stove environment can be simulated in the laboratory. For example, the gelatinized starch solution is applied to the surface of the tile to simulate the situation where the starch solution is applied to the stove; and the tile is placed in a constant temperature and humidity incubator to simulate the temperature and humidity of cooking in the kitchen. Example 5

[0055] The difference between Example 5 and Example 4 is: To the gelatinized starch solution, add 5 parts of starch and 3 parts of baking soda for a second time. Example 6

[0056] The difference between Example 5 and Example 4 is: To the gelatinized starch solution, add 10 parts of starch and 5 parts of baking soda for a second time.

[0057] Comparative Example 1 Mix 15 parts of starch with 85 parts of water, stir and dissolve to form a uniform starch solution. Among them, potato starch is selected as starch. The starch solution is gelatinized at 75°C for 10 minutes. Apply the gelatinized starch solution on the surface of the stove, and the thickness of the starch solution on the surface of the stove is 1 mm. Use the residual heat of the stove to heat the gelatinized starch solution. The gelatinized starch solution is dried into a film.

[0058] In this embodiment, in order to facilitate the test, the stove environment can be simulated in the laboratory. For example, the gelatinized starch solution is applied to the surface of the tile to simulate the situation where the starch solution is applied to the stove; and the tile is placed in a constant temperature and humidity incubator to simulate the temperature and humidity of cooking in the kitchen.

[0059] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is: Choose sweet potato starch for starch.

[0060] Test method.

[0061] 1. Is the membrane broken? Observe the film after drying. If the film is broken, the oil stains cannot be isolated from the stove and the stove cannot be effectively protected.

[0062] 2. Peelability: The dried film is torn off from the stove. If it can be easily torn off from the stove and the torn film has good integrity, it is peelable; if it cannot be torn off from the stove or is easily broken during the tearing process, it is not peelable.

[0063] 3. Membrane bearing capacity: Cut the peeled film into a fixed size (e.g. 5 cm x 5 cm) and fix the film between two supports with a gap of 1 cm to 2 cm between the two supports. Use a push-pull force gauge to push the film vertically from top to bottom at the gap until the film is rubbed and broken. Record the degree of the push-pull force gauge at this time, which is the film bearing capacity, in Newtons (N). The greater the film bearing capacity, the higher the strength of the starch film, and it is not easy to be damaged when peeled.

[0064] 4. Oil isolation: Place the peeled film on the powder (soil powder), use a pipette to drop edible oil on the film surface and let it stand for 1 hour to observe whether the back of the film will be stained with powder. If the back of the film is stained with powder, it means that the oil has penetrated the film and the film has poor oil isolation; if the back of the film is not stained with powder, it means that the oil has not penetrated the film and the film has good oil isolation.

[0065] 5. Drying time: The gelatinized starch solution is applied to the surface of the tile to simulate the situation of the starch solution being applied on the stove; and the tile is placed in a constant temperature and humidity incubator to simulate the temperature and humidity of cooking in the kitchen. The temperature of the constant temperature and humidity incubator is set to 60 degrees Celsius and the humidity is set to 40 degrees. The time T1 when the starch solution is applied to the surface of the tile is recorded; when the starch solution dries into a film that can be peeled off, the recorded time is T2; then T2-T1 is the drying time, and the longer the drying time, the more difficult it is for the starch solution to dehydrate and dry.

[0066] The test results are as follows.

[0067] plan Is the solution broken after drying? Is it peelable after the solution dries? Solution drying time Film bearing capacity Oil barrier properties of the film Example 1 no yes 38 minutes 3.7N good Example 2 no yes 40 minutes 5.2N good Example 3 no yes 40 minutes 4.3N good Example 4 no yes 33 minutes 4.1N good Example 5 no yes 30 minutes 4.9N good Example 6 no yes 30 minutes 4.4N good Comparative Example 1 no yes 40 minutes 1.5N Difference Comparative Example 2 yes no 40 minutes - -

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Claims

1. A method for preparing a stove oil-isolating film, characterized in that: include: A starch solution is prepared, wherein the starch solution comprises, by mass fraction, 10-20 parts of starch, 5-10 parts of baking soda, and 70-85 parts of water; Gelatinizing the starch solution at 70° C.-85° C.; Applying the gelatinized starch solution on the surface of the stove; Using the residual heat of the stove to heat the gelatinized starch solution; The gelatinized starch solution is dried into a film.

2. The preparation method according to claim 1, characterized in that: Also includes: Adding the starch to the gelatinized starch solution for a second time, stirring and dissolving, to form a secondary solution; The step of applying the gelatinized starch solution on the surface of the stove comprises: applying the secondary solution on the surface of the stove; The step of utilizing the residual heat of the stove to heat the gelatinized starch solution comprises: utilizing the residual heat of the stove to heat the secondary solution, and performing secondary gelatinization on the secondary solution.

3. The preparation method according to claim 2, characterized in that: The starch is added for the second time in an amount of 5-10 parts.

4. The preparation method according to claim 2, characterized in that: When adding the starch for the second time, 3-6 parts of baking soda are also added.

5. The preparation method according to claim 1, characterized in that: The starch is potato starch.

6. The preparation method according to claim 1, characterized in that: The thickness of the starch solution coated on the surface of the stove is 1 mm to 3 mm.

7. The preparation method according to claim 1, characterized in that: The method of applying the gelatinized starch solution to the surface of the stove includes spraying or smearing.

8. The preparation method according to claim 1, characterized in that: The starch solution preparation step comprises: mixing 10-20 parts of starch, 5-10 parts of baking soda and 70-85 parts of water, and stirring to dissolve; The gelatinization time is 5 to 20 minutes.

9. A stove protection method, characterized in that: include: According to the preparation method according to any one of claims 1 to 8, the thin film is formed on the surface of the stove; The film is peeled off from the cooktop to remove the oil stains formed on the film due to cooking.

10. A stove oil separator, characterized in that: The stove oil separator is prepared according to the preparation method described in any one of claims 1-8.

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