High-efficiency paint-removing immersion solution, preparation method thereof and wet wipe

Abstract

The application discloses a high-efficiency paint-removing liquid, a preparation method thereof and a wet wipe, wherein the high-efficiency paint-removing liquid comprises, in terms of mass fractions, an alcohol ether solvent, N,N-dimethyl-9-decenamide, an emulsifier, a penetrating agent, a humectant, limonene and a preservative; the alcohol ether solvent is used to improve the polarity of the whole system, can soften and swell the paint film well, and reduce the adhesion of the paint film to a base material; the N,N-dimethyl-9-decenamide is used as a main surface-active paint remover, and the penetrating property of the N,N-dimethyl-9-decenamide can make the paint molecular chain break, so that the paint molecular structure is decomposed; the alcohol ether solvent and the N,N-dimethyl-9-decenamide can cooperate to make the paint layer easy to peel off; the penetrating agent is further used to enhance the emulsification and dispersion of the paint, help the softened and decomposed paint particles stably disperse in the solution, prevent the paint particles from being redeposited, and facilitate subsequent cleaning and removal; and the limonene is used as a complexing agent and cooperates with other components to realize the high-efficiency and thorough paint-removing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily chemical products, in particular to a high-efficiency paint removal liquid, a preparation method thereof and a wet wipe. BACKGROUND

[0002] Paint is a chemical mixture coating that can firmly cover the surface of an object, and has the functions of corrosion resistance, water resistance, oil resistance, chemical resistance, light resistance, temperature resistance, etc. A protective film is formed on the surface of an object by painting, which can prevent or delay the occurrence and development of damage, thereby prolonging the service life of various materials. Because of the corrosion resistance, water resistance, oil resistance, chemical resistance, etc. of paint, it is difficult to remove paint from human skin or clothes once it is contaminated. Traditional paint removal products are mainly designed for industrial use. Traditional chemical methods mainly use organic solvents such as benzyl alcohol, dimethylbenzene and chloroform for paint removal. However, the cleaning effect is poor, the single use amount is large, the cost is high, it is easy to leak and volatile, the smell is large, it is harmful to human body after being inhaled, and it is flammable and has safety hazards, so it is not easy to carry. How to quickly, efficiently, safely and conveniently remove paint has attracted more and more attention from users. Therefore, it is necessary to develop a safe, efficient and convenient paint removal product to meet the needs of ordinary consumers. SUMMARY

[0003] In order to solve the above problems, one of the purposes of the present application is to provide a safe and environmentally friendly high-efficiency paint removal liquid, which is realized by adopting the following technical scheme:

[0004] A high-efficiency paint removal liquid, which comprises the following components in parts by mass: 74-93 parts of alcohol ether solvent, 2-10 parts of N,N-dimethyl-9-decenamide, 1-5 parts of emulsifier, 0.5-1 part of penetrating agent, 1-5 parts of humectant, 2.4-4.4 parts of limonene, and 0.1-0.6 parts of preservative.

[0005] Further, the alcohol ether solvent is at least one of diethylene glycol butyl ether and dipropylene glycol butyl ether.

[0006] Further, the emulsifier is at least one of ethoxylated C9-11-alcohol and polyethoxylated C12-13 linear / branched fatty alcohol.

[0007] Further, the penetrating agent is at least one of sodium sulfosuccinic acid diethylhexyl ester and isooctanol polyoxyethylene ether phosphate.

[0008] Further, the humectant is any one of propylene glycol, glycerol and 1,3-butanediol.

[0009] Further, the limonene is 1-methyl-4-(1-methylethenyl)cyclohexene.

[0010] Further, the preservative is 1,3-dimethylol-5,5-dimethylhydantoin.

[0011] The second object of the present application is to provide a high-efficiency paint removal solution preparation method with simple steps, low cost and suitable for large-scale industrial production, which adopts the following technical scheme:

[0012] A high-efficiency paint removal solution preparation method comprises the following steps: sequentially adding the above-mentioned alcohol ether solvent, N,N-dimethyl-9-decenamide, emulsifier, penetrant, humectant, limonene and preservative into a container, stirring until completely dissolved, and standing for 1-3 hours.

[0013] Further, the stirring speed is 800-1500 rpm.

[0014] The third object of the present application is to provide a high-efficiency paint removal solution wet wipe which is convenient to carry and meets the daily needs of ordinary consumers.

[0015] The high-efficiency paint removal solution provided by the present application is a water-free formula, and N,N-dimethyl-9-decenamide is used as the main surface active paint remover. The alcohol ether solvent, emulsifier, penetrant, humectant and limonene are compounded to improve the polarity of the whole system, soften and swell the paint film, and reduce the adhesion between the paint film and the substrate. N,N-dimethyl-9-decenamide is used as the main surface active paint remover, and the penetration of N,N-dimethyl-9-decenamide can break the molecular chain of the paint and decompose the molecular structure of the paint. The alcohol ether solvent and N,N-dimethyl-9-decenamide can make the paint layer easy to peel off. The penetrant can further enhance the emulsification and dispersion of the paint, help the softened and decomposed paint particles to be stably dispersed in the solution, prevent re-deposition, facilitate subsequent cleaning and removal, and the limonene as a complexing agent can synergistically act with N,N-dimethyl-9-decenamide, alcohol ether solvent and penetrant to achieve efficient and thorough paint removal. Compared with the traditional water-based paint removal solution formula, the paint removal effect is better. Compared with the traditional pure solvent paint removal solution formula, the present application does not contain benzyl alcohol, dimethylbenzene, chloroform, fluoride and other solvents with strong toxicity and strong volatility, does not cause pollution to the environment, is more friendly to people and the environment, can be used at room temperature without heating, is easy to operate, and can remove the paint film by gently wiping on the surface of the human body or clothes. It does not contain strong acid and strong base, and the pH value is between 6.5 and 7.5, which is harmless to the human body or clothes, achieves the purpose of safe and environmentally friendly paint removal, and further makes the wet wipe convenient to carry, which can meet the daily needs of ordinary consumers. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below in combination with specific embodiments, so that those skilled in the art can more clearly understand the present application.

[0017] The following examples are used to illustrate the present application but not to limit the scope of the present application. Based on the specific examples in the present application, all other examples obtained by those skilled in the art without creative work fall within the scope of the present application.

[0018] In the embodiments of the present application, all raw material components are commercially available products well known to those skilled in the art unless otherwise specified; in the embodiments of the present application, the technical means used are conventional means well known to those skilled in the art unless otherwise specified.

[0019] Source of raw materials:

[0020] Diethylene glycol butyl ether and dipropylene glycol butyl ether were purchased from Shanghai Kaijin Chemical Co., Ltd.;

[0021] N,N-dimethyl 9-decenamide, trade name STEPOSOL MET-10U, was purchased from Guangzhou Shengbang Chemical Technology Co., Ltd.;

[0022] Ethoxylated C9-11-alcohols, trade name WINCREATION TOMADOL 91-2.5, was purchased from Guangzhou Tuoxin Chemical Technology Co., Ltd.;

[0023] Polyethoxylated C12-13 linear / branched fatty alcohols, trade name SAFOL 23E9, was purchased from SACHEM (China) Chemical Co., Ltd.;

[0024] Sodium diethylhexyl sulfosuccinate, trade name Eurowet PG70, was purchased from Eurowet Polymer (China) Co., Ltd.;

[0025] Isooctanol polyoxyethylene ether phosphate, trade name OEP 98, was purchased from Nantong Chenrun Chemical Co., Ltd.;

[0026] Propylene glycol and glycerol were both purchased from Guangzhou Zhichun Chemical Co., Ltd.;

[0027] 1,3-Butanediol was purchased from Hubei Chengfeng Chemical Co., Ltd.;

[0028] 1-Methyl-4-(1-methylethenyl)cyclohexene was purchased from Wuhan Kamik Technology Co., Ltd.;

[0029] 1,3-Dihydroxymethyl-5,5-dimethylhydantoin was purchased from Qingzhou San Yi Chemical Co., Ltd.;

[0030] Other reagents were all conventional commercially available.

[0031] Example 1

[0032] The embodiment provides a high-efficiency paint-removing immersion solution, which comprises the following components in parts by mass: 83.5 parts of alcohol ether solvent, 6 parts of N,N-dimethyl-9-decenamide, 3 parts of emulsifier, 0.75 parts of penetrating agent, 3 parts of humectant, 3.4 parts of limonene and 0.35 parts of preservative, wherein the alcohol ether solvent is diethylene glycol butyl ether, the emulsifier is ethoxylated C9-11-alcohol, the penetrating agent is sodium sulfosuccinic acid diethylhexyl ester, the humectant is propylene glycol, the limonene is 1-methyl-4-(1-methylethenyl)cyclohexene, and the preservative is 1,3-dihydroxymethyl-5,5-dimethylhydantoin.

[0033] The preparation method of the high-efficiency paint-removing immersion solution comprises the following steps: sequentially adding the alcohol ether solvent, the N,N-dimethyl-9-decenamide, the emulsifier, the penetrating agent, the humectant, the limonene and the preservative in the parts by mass into a container, stirring until completely dissolved, and standing for 1.5 hours.

[0034] The method for preparing a wet wipe by using the high-efficiency paint-removing immersion solution comprises the following steps: mixing cross pearl pattern non-woven fabric and the high-efficiency paint-removing immersion solution according to a weight ratio of 1:5, cutting, folding and sealing into a packaging bag after the cross pearl pattern non-woven fabric is saturated, and thus a wet wipe product is prepared.

[0035] Embodiment 2

[0036] The embodiment provides a high-efficiency paint-removing immersion solution, which comprises the following components in parts by mass: 74 parts of alcohol ether solvent, 10 parts of N,N-dimethyl-9-decenamide, 5 parts of emulsifier, 1 part of penetrating agent, 5 parts of humectant, 4.4 parts of limonene and 0.6 parts of preservative, wherein the alcohol ether solvent is dipropylene glycol butyl ether, the emulsifier is polyethoxylated C12-13 linear / branched fatty alcohol, the penetrating agent is isooctanol polyoxyethylene ether phosphate, the humectant is glycerol, the limonene is 1-methyl-4-(1-methylethenyl)cyclohexene, and the preservative is 1,3-dihydroxymethyl-5,5-dimethylhydantoin.

[0037] The preparation method of the high-efficiency paint-removing immersion solution comprises the following steps: sequentially adding the alcohol ether solvent, the N,N-dimethyl-9-decenamide, the emulsifier, the penetrating agent, the humectant, the limonene and the preservative in the parts by mass into a container, stirring until completely dissolved, and standing for 1.5 hours.

[0038] The method for preparing a wet wipe by using the high-efficiency paint-removing immersion solution comprises the following steps: mixing cross pearl pattern non-woven fabric and the high-efficiency paint-removing immersion solution according to a weight ratio of 1:5, cutting, folding and sealing into a packaging bag after the cross pearl pattern non-woven fabric is saturated, and thus a wet wipe product is prepared.

[0039] Example 3

[0040] The present embodiment provides a high-efficiency paint-removing dip, which comprises the following components in parts by mass: 93 parts of alcohol ether solvent, 2 parts of N,N-dimethyl-9-decenamide, 1 part of emulsifier, 0.5 part of penetrant, 1 part of humectant, 2.4 parts of limonene, and 0.1 part of preservative, wherein the alcohol ether solvent is a liquid obtained by mixing diethylene glycol butyl ether and dipropylene glycol butyl ether at a weight ratio of 1:1, the emulsifier is polyethoxylated C12-13 linear / branched fatty alcohol, the penetrant is sodium sulfosuccinic acid diethyl hexyl ester, the humectant is 1,3-butanediol, the limonene is 1-methyl-4-(1-methylethenyl)cyclohexene, and the preservative is 1,3-dihydroxymethyl-5,5-dimethylhydantoin.

[0041] The preparation method of the high-efficiency paint-removing dip described above comprises the following steps: sequentially adding the alcohol ether solvent, N,N-dimethyl-9-decenamide, emulsifier, penetrant, humectant, limonene, and preservative described above into a container in parts by mass, stirring until completely dissolved, and standing for 3 hours at a stirring speed of 1500 revolutions per minute.

[0042] The method for preparing a wet wipe using the high-efficiency paint-removing dip described above comprises the following steps: mixing cross pearl pattern non-woven fabric with the high-efficiency paint-removing dip described above at a weight ratio of 1:10, allowing the cross pearl pattern non-woven fabric to be saturated after adsorption, and cutting, folding, and sealing into a packaging bag to obtain a wet wipe product.

[0043] Comparative Example 1

[0044] The present comparative example is different from Example 1 in that 0.75 parts of sodium sulfosuccinic acid diethyl hexyl ester is increased to 6.75 parts, and N,N-dimethyl-9-decenamide is not added, and the other components and experimental procedures are the same as those of Example 1.

[0045] Comparative Example 2

[0046] The present comparative example is different from Example 1 in that 6 parts of N,N-dimethyl-9-decenamide is increased to 9.4 parts, and limonene is not added, and the other components and experimental procedures are the same as those of Example 1.

[0047] Comparative Example 3

[0048] The present comparative example is different from Example 1 in that 83.5 parts of ethanol is replaced with 83.5 parts of alcohol ether solvent, and the other components and experimental procedures are the same as those of Example 1.

[0049] Comparative Example 4

[0050] The commercially available high-efficiency paint remover is named Sanhe High-efficiency Paint Remover, model H120-60-271, and the manufacturer is Guangdong Sanhe Chemical Technology Co., Ltd. The purchase link is https: / / 3.cn / 1Z-XY3rB.

[0051] The wet wipe immersion liquids prepared in Examples 1-3 and Comparative Examples 1-4 were subjected to performance testing.

[0052] Test method:

[0053] Paint residue area determination of cloth: at room temperature, different types of commercially available paints were sprayed on the surface of clean pure cotton black cloth, with a spraying thickness of 50±10 um, and the samples were placed under natural conditions for aging for one month to obtain the samples to be tested. The samples to be tested were immersed in the liquids of Examples 1-3 and Comparative Examples 1-4 for 10 min, and then rinsed with clean water for 3 times. The percentage of the residual paint area of the cloth after rinsing was calculated.

[0054] Cloth damage: the paint-removed cloth was taken out of the wet wipe immersion liquid, rinsed with clean water for 3 times and dried, and the surface of the cloth was observed by naked eye to determine whether there was damage. The test results are shown in Table 1.

[0055] Human sensory test: 5 men and 5 women were selected, and the liquids of Examples 1-3 and Comparative Examples 1-4 were sprayed on the skin, and after 5 min, whether there was a burning, stinging or other abnormal sensation was observed. The test results are shown in Table 1.

[0056] From the test results in Table 1, the wet wipe immersion liquids prepared in the examples of the present application have good paint removal effect at room temperature, the residual paint area of the cloth is very small, the cloth is not damaged, and the human body is not stimulated. Especially, in the case of reasonable component distribution of Example 1, there is no residual paint after rinsing the cloth. Under the same time conditions, the paint removal effect of the present application has exceeded that of the commercially available paint remover. If prepared into a wet wipe, it can completely meet the demand of people in daily life for efficient, safe and convenient paint removal. Further analysis of the experimental data in Table 1 shows that the residual paint area of the cloth in Comparative Examples 1-3 is relatively large, because the absence of important components in the formula of the present application greatly affects the paint removal capacity of the whole system. It can also be seen that the influence of N,N-dimethyl-9-decenamide on the paint removal capacity of the system is greater than that of the alcohol ether solvent, and the influence of the alcohol ether solvent on the paint removal capacity of the system is greater than that of limonene.

[0057] Table 1 Performance test results

[0058]

[0059] In summary, the efficient paint removal liquid provided by the application takes N,N-dimethyl 9-decenamide as the main surface active paint remover, is compounded with alcohol ether solvent, emulsifier, penetrating agent, humectant, limonene, and has synergies among components, so that efficient and thorough paint removal effect is realized, the paint removal liquid is more friendly to people and environment, can be used at room temperature, does not need heating, and is simple to operate.

[0060] The above merely illustrates the embodiments of the present application, and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A high efficiency paint degreaser solution, characterized in that, The immersion liquid is anhydrous, and includes the following components by mass fraction: 74-93 parts of an alcohol ether solvent, 2-10 parts of N,N-dimethyl-9-decenamide, 1-5 parts of an emulsifier, 0.5-1 part of a penetrant, 1-5 parts of a humectant, 2.4-4.4 parts of limonene, and 0.1-0.6 parts of a preservative; The alcohol ether solvent is at least one of diethylene glycol butyl ether and dipropylene glycol butyl ether. The penetrant is at least one of sodium sulfosuccinic acid diethyl ester and isooctanol polyoxyethylene ether phosphate.

2. The high efficiency paint stripping bath of claim 1 wherein, The emulsifier is at least one of ethoxylated C9-11-alcohol and polyethoxylated C12-13 linear / branched fatty alcohol.

3. The high efficiency paint stripping bath of claim 1 wherein, The humectant is any one of propylene glycol, glycerol, and 1,3-butanediol.

4. The high efficiency paint stripping bath of claim 1 wherein, The limonene is 1-methyl-4-(1-methylethenyl)cyclohexene.

5. The high efficiency paint stripping bath of claim 1 wherein, The preservative is 1,3-dihydroxymethyl-5,5-dimethylhydantoin.

6. The method for preparing the high-efficiency paint remover according to claim 1, characterized in that, The method includes the following steps: sequentially adding the alcohol ether solvent, N,N-dimethyl-9-decenamide, emulsifier, penetrant, humectant, limonene, and preservative into a container, stirring until completely dissolved, and standing for 1-3 hours.

7. The method for preparing the high-efficiency paint remover according to claim 6, characterized in that, The stirring speed is 800-1500 revolutions per minute.

8. A high-efficiency paint-removing wet wipe including the high-efficiency paint-removing immersion liquid of any one of claims 1-5.

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