Water-based pen stain cleaning agent as well as preparation method and application thereof

Abstract

The invention relates to a water-based pen stain cleaning agent as well as a preparation method and application thereof. The water-based pen stain cleaning agent comprises the following components in percentage by mass: 90%-97% of water, 1%-5% of hydroxyphenyl ether and 1%-5% of a surfactant. According to the water-based pen stain cleaning agent, the raw materials are matched with one another, the water-based pen stain cleaning agent which is high in pen stain cleaning capacity and stable in property can be obtained only by adding a small amount of hydroxyphenyl ether and the surfactant, and the water-based pen stain cleaning agent has a strong cleaning effect on oil-based ink pen stains which are hard-dried for 24 hours and alcohol ink pen stains which are hard-dried for 1 month; the advantages of being healthy and environment-friendly are also realized.

Description

Technical Field

[0001] The present application relates to the field of cleaning agents, and in particular to a water-based pen stain cleaning agent and a preparation method and application thereof. Background Art

[0002] Pen stain cleaners mainly include oil-based cleaners and water-based cleaners. Oil-based cleaners have better cleaning effects, but they usually have higher VOC releases and are not environmentally friendly. Traditional water-based cleaners generally have weaker cleaning power and are not effective in cleaning pen stains. Summary of the invention

[0003] Based on this, it is necessary to provide a water-based pen stain cleaning agent and a preparation method and application thereof, so as to overcome the problem that traditional pen stain cleaning agents are difficult to balance environmental protection and pen stain removal capabilities.

[0004] In a first aspect of the present application, a water-based pen stain cleaning agent is provided.

[0005] A water-based pen stain cleaning agent comprises the following raw materials in percentage by mass:

[0006] Water 90%~97%,

[0007] Hydroxyphenyl ether 1%~5%, and

[0008] Surfactant 1%~5%.

[0009] In some embodiments, the hydroxyphenyl ether includes one or both of ethylene glycol phenyl ether and propylene glycol phenyl ether.

[0010] In some embodiments, the surfactant includes a zwitterionic surfactant and a nonionic surfactant.

[0011] In some embodiments, the mass ratio of the zwitterionic surfactant to the nonionic surfactant is 1:(5-10).

[0012] In some embodiments, the zwitterionic surfactant includes cocamidopropyl betaine.

[0013] In some embodiments, the nonionic surfactant includes fatty alcohol polyoxyethylene ether.

[0014] In some of the embodiments, the water-based pen stain cleaning agent further comprises 0.03% to 0.1% of fragrance and / or 0.05% to 0.5% of preservative, calculated as a percentage by mass of the water-based pen stain cleaning agent.

[0015] In some embodiments, the preservative includes an isothiazolinone compound.

[0016] In a second aspect of the present application, a method for preparing the water-based pen stain cleaning agent of the first aspect of the present application is provided, comprising the following steps:

[0017] mixing the water and the surfactant to form an aqueous solution;

[0018] The hydroxyphenyl ether is mixed with the aqueous solution.

[0019] In a third aspect of the present application, there is provided a use of the water-based pen stain cleaning agent of the first aspect of the present application in cleaning alcohol-based ink stains and / or oil-based ink stains.

[0020] The water-based pen stain cleaning agent of the present application comprises 90% to 97% water, 1% to 5% hydroxyphenyl ether, and 1% to 5% surfactant in mass percentages. By combining the above raw materials with each other, only a small amount of hydroxyphenyl ether and surfactant need to be added to obtain a water-based pen stain cleaning agent with strong pen stain cleaning ability. At the same time, the water-based pen stain cleaning agent of the present application uses less organic solvents and is more environmentally friendly. Therefore, the water-based pen stain cleaning agent of the present application can better balance environmental protection and pen stain removal ability. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In this application, "at least one" means more than one, such as one, two and more than two. "Multiple" or "several" means at least two, such as two, three, etc.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] When a numerical range is disclosed herein, the above range is considered to be continuous and includes the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all subranges included therein.

[0025] Unless otherwise specified, all steps of the present application may be performed sequentially or randomly. For example, the method includes steps (a) and (b), which means that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may also include step (c), which means that step (c) may be added to the method in any order. For example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0026] In this application, "above" or "below" includes the number itself. For example, "1 below" includes 1.

[0027] The temperature parameters in this application, unless otherwise specified, are allowed to be either constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the accuracy range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0028] Pen stain cleaners mainly include oil-based cleaners and water-based cleaners. Oil-based cleaners have better cleaning effects, but they usually have higher VOC releases and are not environmentally friendly. Traditional water-based cleaners generally have weaker cleaning power and are not effective in cleaning pen stains.

[0029] Based on this, an embodiment of the present application provides an environmentally friendly, strong cleaning water-based pen stain cleaning agent. The water-based pen stain cleaning agent includes the following raw materials in percentage by mass:

[0030] Water 90%~97%,

[0031] Hydroxyphenyl ether 1%~5%,

[0032] Surfactant 1%~5%.

[0033] In this embodiment, the combination of hydroxyphenyl ether and surfactant can reduce the surface tension of the water-based pen stain cleaning agent, thereby accelerating the penetration and emulsification of the water-based pen stain cleaning agent on the residual pen stains, and obtaining a better cleaning effect. At the same time, only a small amount of hydroxyphenyl ether and surfactant need to be added to the cleaning agent of this embodiment, so it has good environmental protection performance. That is, the water-based pen stain cleaning agent of this embodiment can better balance environmental protection and pen stain removal ability.

[0034] In some embodiments, the water-based pen stain cleaning agent meets the requirements of GB38508 on the content of volatile solvents and the content of specific volatile organic compounds in water-based cleaning agents.

[0035] It is to be understood that hydroxyphenyl ether in the present application refers to an ether substance including a hydroxyl group and a phenyl group.

[0036] In some of the embodiments, the mass percentage of hydroxyphenyl ether in the water-based pen stain cleaning agent can be but is not limited to 1%, 2%, 3%, 4%, 5% or other values ​​within the range of 1% to 5%.

[0037] In some of the embodiments, the mass percentage of the surfactant in the water-based pen stain cleaning agent can be, but is not limited to, 1%, 2%, 3%, 4%, 5% or other values ​​within the range of 1% to 5%.

[0038] In some embodiments, the hydroxyphenyl ether includes one or both of ethylene glycol phenyl ether and propylene glycol phenyl ether.

[0039] In some embodiments, the surfactant includes a zwitterionic surfactant and a nonionic surfactant.

[0040] In some embodiments, the mass ratio of the zwitterionic surfactant to the nonionic surfactant is 1:(5-10). Alternatively, the mass ratio of the zwitterionic surfactant to the nonionic surfactant may be, but is not limited to, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10 or other values ​​within the range of 1:(5-10).

[0041] In some embodiments, the zwitterionic surfactant includes cocamidopropyl betaine. Optionally, the cocamidopropyl betaine is CAB-35.

[0042] In some embodiments, the nonionic surfactant includes fatty alcohol polyoxyethylene ether. Optionally, the fatty alcohol polyoxyethylene ether is AEO-9.

[0043] In some embodiments, in the water-based pen stain cleaning agent, the zwitterionic surfactant is CAB-35, with a mass percentage of 0.3% to 0.8%; the nonionic surfactant is AEO-9, with a mass percentage of 3% to 4.5%; the hydroxyphenyl ether is propylene glycol phenyl ether, with a mass percentage of 2% to 4.5%. The balance is water.

[0044] Propylene glycol phenyl ether is a non-toxic, non-volatile, mild-smelling hydroxyphenyl ether. However, the solubility of propylene glycol phenyl ether in water is low. After being dispersed in water, it is easy to stratify after long-term storage. At this time, the stratification problem of propylene glycol phenyl ether in water can be effectively improved by the combination of surfactants.

[0045] For example, in some embodiments of the present application, cocamidopropyl betaine with excellent solubility and foaming properties is compounded with fatty alcohol polyoxyethylene ether with strong emulsification ability and strong permeability to emulsify propylene glycol phenyl ether. At the same time, the pH of the aqueous solution of cocamidopropyl betaine and the aqueous solution of fatty alcohol polyoxyethylene ether are close to neutral, which can reduce the irritation of water-based pen stain cleaning agent to the skin, and is conducive to reducing the corrosiveness to the medium and reducing the damage to the medium. It is understandable that the medium represents the material that carries the pen stain. For example, the medium can be a whiteboard such as PET, PP, or a material such as glass or metal.

[0046] In some embodiments, the water-based pen stain cleaning agent further comprises 0.03% to 0.1% of fragrance by mass percentage. The mass percentage of the fragrance in the water-based pen stain cleaning agent may be, but is not limited to, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1% or other values ​​within the range of 0.03% to 0.1%.

[0047] In some embodiments, the water-based pen stain cleaning agent further comprises 0.05% to 0.5% of a preservative by mass percentage. The mass percentage of the preservative in the water-based pen stain cleaning agent may be, but is not limited to, 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5% or other values ​​within the range of 0.05% to 0.5%.

[0048] In some embodiments, the preservative includes isothiazolinone compounds. Isothiazolinone compounds are a class of broad-spectrum, highly effective, low-toxic antibacterial agents that have strong inhibitory and killing effects on common bacteria, fungi, algae, etc. By simply adding a small amount of isothiazolinone compounds, the shelf life of the water-based pen stain cleaner can be effectively extended.

[0049] In some embodiments, the preservative is kason. Kason has good compatibility with nonionic surfactants and can be evenly dispersed in the water base. Only a small amount of addition is needed to effectively extend the shelf life of the water-based pen stain cleaning agent.

[0050] Another embodiment of the present application provides a method for preparing the above-mentioned water-based pen stain cleaning agent.

[0051] The preparation method of the water-based pen stain cleaning agent comprises the following steps:

[0052] mixing water and a surfactant to form an aqueous solution;

[0053] The hydroxyphenyl ether is mixed with the aqueous solution.

[0054] Optionally, the hydroxyphenyl ether is added to the aqueous solution to achieve mixing of the hydroxyphenyl ether with the aqueous solution.

[0055] It can be understood that in the preparation method of this embodiment, the mass percentages of water, surfactant, hydroxyphenyl ether, etc. can be selected accordingly in the above text and will not be repeated here.

[0056] In some embodiments, after the hydroxyphenyl ether is mixed with the aqueous solution, the solution system is stirred until it becomes transparent.

[0057] In some embodiments, the raw materials of the water-based pen stain cleaning agent further include 0.03% to 0.1% of flavor and 0.05% to 0.5% of preservative, calculated by mass percentage. In this case, the preparation method of the water-based pen stain cleaning agent includes the following steps:

[0058] Mixing water, preservatives, and surfactants to form an aqueous solution;

[0059] Mix the hydroxyphenyl ether, fragrance and aqueous solution.

[0060] Optionally, hydroxyphenyl ether and fragrance are added into the aqueous solution to achieve mixing of the hydroxyphenyl ether and the aqueous solution.

[0061] In some embodiments, after the hydroxyphenyl ether, the essence and the aqueous solution are mixed, the solution system is stirred until it becomes transparent.

[0062] Another embodiment of the present application provides a use of the above-mentioned water-based pen stain cleaning agent in cleaning alcohol-based ink and / or oil-based ink pen stains.

[0063] In some embodiments, for alcohol ink or oil ink pen stains formed on media such as polymer materials, glass or metal, a water-based pen stain cleaning agent is moved to the surface of the pen stain, and the pen stain is wiped with a whiteboard eraser or a rag after waiting for 10s to 30s. The pen stain can be effectively erased under the action of the water-based pen stain cleaning agent of the present application.

[0064] In some embodiments, water-based pen stain cleaning agent has a good cleaning effect on the pen stains on the whiteboard. The whiteboard pen is mainly an alcohol ink whiteboard pen or an oily ink whiteboard pen. The writing traces of the alcohol ink whiteboard pen can be wiped off with a whiteboard wiper or a rag generally within a week, but the time continues to extend, and after more than one month or longer, the ink and the whiteboard are more closely bonded, and then it is not easy to wipe off with a whiteboard wiper or a rag, and the pen stains will remain. And if an oily ink whiteboard pen is used to write on the whiteboard, generally after more than 24 hours, the oily ink whiteboard pen pen stains are just difficult to wipe off. Adopting the above-mentioned water-based pen stain cleaning agent can effectively erase the pen stains formed by the whiteboard pen, improve the cleaning effect and cleaning efficiency of the whiteboard pen stains. Meanwhile, because the above-mentioned water-based pen stain cleaning agent has a good environmental performance, it can effectively reduce the harm to the environment and consumer health.

[0065] The present application is further described in detail below with reference to specific embodiments.

[0066] In the following specific embodiments and comparative examples, the raw materials used, unless otherwise specified, are all commercially available products; the instruments used, unless otherwise specified, are all commercially available products; and the processes used, unless otherwise specified, are all routinely selected by those skilled in the art.

[0067] Example 1

[0068] In terms of mass percentage, the raw materials of the water-based pen stain cleaning agent of this embodiment are: deionized water, with a content of 91.35%; the hydroxyphenyl ether is propylene glycol phenyl ether, with a content of 4%; the zwitterionic surfactant is CAB-35, with a content of 0.5%; the non-ionic surfactant is AEO-9, with a content of 4%; the preservative is kason, with a content of 0.1%; and the flavor has a content of 0.05%.

[0069] The preparation method of the water-based pen stain cleaning agent of this embodiment is as follows: deionized water, CAB-35, AEO-9 and Kason are mixed evenly to obtain an aqueous solution. Propylene glycol phenyl ether and fragrance are added to the aqueous solution, and the mixture is stirred rapidly to obtain a mixed solution. The mixture is stirred evenly at a speed of 1000 rpm for 10 minutes, and the mixed solution is transparent, thereby obtaining the water-based pen stain cleaning agent.

[0070] Example 2

[0071] The raw materials and preparation method of the water-based pen stain cleaning agent of this embodiment are basically the same as those of Example 1, except that the content of propylene glycol phenyl ether is 2% and the content of deionized water is 93.35%.

[0072] Example 3

[0073] The raw materials and preparation method of the water-based pen stain cleaning agent of this embodiment are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that the hydroxyphenyl ether is ethylene glycol phenyl ether, and the content thereof is 4%.

[0074] Example 4

[0075] The raw materials and preparation method of the pen stain cleaning agent of this embodiment are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that: in terms of mass percentage, the content of CAB-35 is 2.5%; and the content of AEO-9 is 2%.

[0076] Example 5

[0077] The raw materials and preparation method of the pen stain cleaning agent of this embodiment are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that: in terms of mass percentage, the content of CAB-35 is 4%; and the content of AEO-9 is 0.5%.

[0078] Example 6

[0079] The raw materials and preparation method of the pen stain cleaning agent of this embodiment are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that: the content of CAB-35 is 4.5% by mass; and AEO-9 is not used.

[0080] Example 7

[0081] The raw materials and preparation method of the pen stain cleaning agent of this embodiment are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that: the content of AEO-9 is 4.5% by mass; and CAB-35 is not used.

[0082] Comparative Example 1

[0083] The raw materials and preparation method of the water-based pen stain cleaning agent in this comparative example are basically the same as those of the water-based pen stain cleaning agent in Example 1, except that: hydroxyphenyl ether is not used, and an alcohol ether solvent is used to replace hydroxyphenyl ether, and the alcohol ether solvent is ethylene glycol butyl ether with a content of 4%.

[0084] Comparative Example 2

[0085] The raw materials and preparation method of the water-based pen stain cleaning agent in this comparative example are basically the same as those of the water-based pen stain cleaning agent in Example 1, except that: hydroxyphenyl ether is not used, and an alcohol ether solvent is used to replace hydroxyphenyl ether, and the alcohol ether solvent is diethylene glycol methyl ether, and the content is 4%.

[0086] Comparative Example 3

[0087] The raw materials and preparation method of the water-based pen stain cleaning agent in this comparative example are basically the same as those of the water-based pen stain cleaning agent in Example 1, except that: hydroxyphenyl ether is not used, and an alcohol ether solvent is used to replace hydroxyphenyl ether, and the alcohol ether solvent is propylene glycol methyl ether, and the content is 4%.

[0088] Comparative Example 4

[0089] The raw materials and preparation method of the water-based pen stain cleaning agent in this comparative example are basically the same as those of the water-based pen stain cleaning agent in Example 1, except that hydroxyphenyl ether is not used, and an alcohol ether solvent is used to replace hydroxyphenyl ether, and the alcohol ether solvent is dipropylene glycol methyl ether, and the content is 4%.

[0090] Comparative Example 5

[0091] The raw materials and preparation method of the water-based pen stain cleaning agent in this comparative example are basically the same as those of the water-based pen stain cleaning agent in Example 1, except that: hydroxyphenyl ether is not used, and an alcohol ether solvent is used to replace hydroxyphenyl ether, and the alcohol ether solvent is propylene glycol butyl ether, and the content is 4%.

[0092] Comparative Example 6

[0093] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and an alcohol solvent is used to replace hydroxyphenyl ether, and the alcohol solvent is ethanol, and the content is 4%.

[0094] Comparative Example 7

[0095] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that: hydroxyphenyl ether is not used, and an alcohol solvent is used to replace hydroxyphenyl ether, and the alcohol solvent is isopropanol, and the content is 4%.

[0096] Comparative Example 8

[0097] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and an alkane solvent is used to replace hydroxyphenyl ether, and the alkane solvent is D20 solvent oil, and the content is 4%.

[0098] Comparative Example 9

[0099] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and an alkane solvent is used to replace hydroxyphenyl ether, and the alkane solvent is D80 solvent oil, and the content is 4%.

[0100] Comparative Example 10

[0101] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and an alkane solvent is used to replace hydroxyphenyl ether, and the alkane solvent is n-heptane, and the content is 4%.

[0102] Comparative Example 11

[0103] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and an alkane solvent is used to replace hydroxyphenyl ether, and the alkane solvent is petroleum ether, and the content is 4%.

[0104] Comparative Example 12

[0105] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and a ketone solvent is used to replace hydroxyphenyl ether, and the ketone solvent is acetone, and the content is 4%.

[0106] Comparative Example 13

[0107] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and a ketone solvent is used to replace hydroxyphenyl ether, and the ketone solvent is butanone, and the content is 4%.

[0108] Comparative Example 14

[0109] The raw materials and preparation method of the pen stain cleaning agent of this comparative example are basically the same as those of the water-based pen stain cleaning agent of Example 1, except that hydroxyphenyl ether is not used, and a ketone solvent is used to replace hydroxyphenyl ether, and the ketone solvent is cyclohexanone, and the content is 4%.

[0110] Test Case

[0111] The test results of various embodiments and comparative examples are shown in Table 1 and Table 2. The method for determining the cleaning power is as follows:

[0112] Oil-based ink whiteboard pen stain cleaning test: At room temperature, use an oil-based ink whiteboard pen to draw a 2cm long and 2mm wide ink line on the whiteboard. After 24 hours of drying, spray 2g of cleaning agent on the pen stain, wait for 30 seconds, apply 20N force to wipe back and forth with a towel, and wipe back and forth with a towel no more than 3 times to remove the pen stain, which is rated as strong cleaning ability. Wipe back and forth with a towel 4 to 10 times to remove the pen stain, which is rated as medium cleaning power. Wipe back and forth with a towel more than 10 times to remove the pen stain, which can be rated as having cleaning ability.

[0113] Alcohol ink whiteboard pen stain cleaning test: At room temperature, use an alcohol ink whiteboard pen to draw a 2cm long and 2mm wide ink line on the whiteboard. After 30 days, spray 2g of cleaning agent on the pen stain, wait for 30s, apply 20N force to wipe back and forth with a towel, and the pen stain can be removed by wiping back and forth with a towel no more than 3 times, which is rated as strong cleaning ability. Wiping back and forth with a towel 4 to 10 times can remove the pen stain, which is rated as medium cleaning power. Wiping back and forth with a towel more than 10 times can remove the pen stain, which can be rated as having cleaning ability.

[0114] Table 1

[0115]

[0116] Table 2

[0117]

[0118] It can be seen from the combination of the above embodiments and comparative examples that the ratio of zwitterionic surfactants and nonionic surfactants will affect the pen stain cleaning ability of water-based cleaning agents. Under the same total addition amount, relatively increasing the content of nonionic surfactant AEO-9 is more conducive to exerting the performance of water-based pen stain cleaning agents using propylene glycol phenyl ether as solvent. In the solvent control experiment, Examples 1 to 3 in which propylene glycol phenyl ether or ethylene glycol phenyl ether is added show a good pen stain cleaning effect. Especially when hydroxyphenyl ether is propylene glycol phenyl ether, at this time, the pen stains of oil-based ink whiteboard pens can still be erased more efficiently at an addition amount of 2%. In addition, propylene glycol phenyl ether is also non-toxic and non-volatile, which can better meet environmental protection requirements.

[0119] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0120] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims, and the description may be used to interpret the content of the claims.

Claims

1. A water-based pen stain cleaning agent, characterized in that: The raw materials include the following mass percentages: Water 90%~97%, Hydroxyphenyl ether 1%~5%, and Surfactant 1%~5%.

2. The water-based pen stain cleaning agent according to claim 1, characterized in that: The hydroxyphenyl ether includes one or both of ethylene glycol phenyl ether and propylene glycol phenyl ether.

3. The water-based pen stain cleaning agent according to claim 1, characterized in that: The surfactant includes a zwitterionic surfactant and a nonionic surfactant.

4. The water-based pen stain cleaning agent according to claim 3, characterized in that: The mass ratio of the zwitterionic surfactant to the nonionic surfactant is 1:(5~10).

5. The water-based pen stain cleaning agent according to claim 3 or 4, characterized in that: The zwitterionic surfactant includes cocamidopropyl betaine.

6. The water-based pen stain cleaning agent according to claim 3 or 4, characterized in that: The nonionic surfactant includes fatty alcohol polyoxyethylene ether.

7. The water-based pen stain cleaning agent according to claim 1, characterized in that: Calculated by mass percentage of the water-based pen stain cleaning agent, the water-based pen stain cleaning agent further includes 0.03% to 0.1% of fragrance and / or 0.05% to 0.5% of preservative.

8. The water-based pen stain cleaning agent according to claim 7, characterized in that: The preservatives include isothiazolinone compounds.

9. A method for preparing the water-based pen stain cleaning agent according to any one of claims 1 to 8, characterized in that: The steps include: mixing the water and the surfactant to form an aqueous solution; The hydroxyphenyl ether is mixed with the aqueous solution.

10. Use of the water-based pen stain cleaning agent according to any one of claims 1 to 8 in cleaning alcohol ink stains and / or oil ink stains.

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