An aerosol bubble bath lotion and its preparation method

Abstract

The present invention discloses an aerosol bubble bath lotion and a preparation method thereof, relating to the technical field of cosmetics. The present invention provides a bath lotion, which comprises the following components in parts by weight: 5-12 parts of sodium methyl cocoyl taurate, 4-8 parts of cocoamidopropyl betaine, 3-6 parts of sodium cocoyl isethionate, and 3-8 parts of potassium lauryl phosphate. The present invention provides a bath lotion. The four surfactants, namely sodium methyl cocoyl taurate, cocoamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate, are used in combination. The prepared bath lotion has a high foaming rate, rich foam, good foaming effect, and good foam stability.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to an aerosol bubble shower gel and a preparation method thereof. Background Art

[0002] A shower gel is a skin cleanser used for areas other than the face. Its invention was mainly to replace the touch and efficacy of traditional cleansing soaps. Although shower products have undergone multiple iterations and different performances have been emphasized, the requirement of having good foaming property is consistent. Stirring or bubbling a shower gel containing surfactants allows air to enter the solution and form bubbles. A bubble is a liquid film surrounding some gas. On the inner side of the liquid film, the hydrophobic groups of the surfactant extend into the air inside the bubble, and on the outer side of the liquid film, the hydrophobic groups of the surfactant extend into the air outside the bubble, forming a bubble film.

[0003] Therefore, ordinary shower products cannot foam by themselves. To make shower products produce foam, in addition to the most traditional hand rubbing, auxiliary foaming tools such as shower puffs, manual foaming devices, and electric foaming devices have been invented one after another, greatly improving the foaming efficiency. With the invention and popularization of the foam pump head, it has been applied to shower gel products and has become a foam pump type bubble shower gel. The foam pump type bubble shower gel foams by the foam pump head. Pressing the pump head directly can spray out foam, and it can be directly used without hand rubbing or even using auxiliary foaming tools, bringing great convenience to users and being quite popular in the market.

[0004] Although the foam pump type bubble shower gel can directly spray out foam, the foam produced is relatively soft, not thick, and has a short defoaming time, resulting in a general user experience. And when the foaming is insufficient, due to usage habits, multiple squeezes are used to obtain a sufficient amount of foam, which will inevitably increase the usage amount of the shower gel and increase the difficulty of subsequent flushing. The usage frequency of shower gel is generally once a day. After the product is used up and the foam in the nozzle disappears, a large space will be left. Coupled with the fact that the bathroom where the shower gel is stored is generally relatively humid and prone to bacterial growth. To solve this problem, more preservatives need to be added to extend the shelf life. And the excessive use of preservatives is not beneficial to the human body, which is another drawback of the foam pump type bubble shower gel. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a shower gel and a preparation method thereof.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a shower gel, comprising the following components in parts by weight: 5 - 12 parts of sodium methyl cocoyl taurate, 4 - 8 parts of cocamidopropyl betaine, 3 - 6 parts of sodium cocoyl isethionate, and 3 - 8 parts of potassium lauryl phosphate.

[0007] The present invention provides a body wash. Sodium methyl cocoyl taurate, as a new amino acid-based surfactant, is condensed from a fatty acid of natural origin and sodium methyl taurate. Its degradation products have little impact on the environment and also have the advantage of good compatibility with various other surfactants. It makes the foam rich, delicate, and stable under a wide range of pH conditions, and the hydrophilic amino acid structure has very little irritation to the skin. Cocamidopropyl betaine is an amphoteric surfactant with excellent stability, strong detergency, low irritation, rich foam, excellent thickening property, and can significantly improve the low-temperature stability of the product. Sodium cocoyl isethionate is an anionic surfactant, which is mild and efficient and has a good emulsifying and removing effect on human body oils. Potassium lauryl phosphate is an anionic surfactant with good skin compatibility, mildness, and stability, and has extremely strong wetting ability. The inventor found in the actual experiment process that when the above four specific surfactants are used in combination, the body wash prepared has a high foaming rate, rich foam, good foaming effect, and good foam stability.

[0008] Preferably, the body wash comprises the following components in parts by weight: 8-10 parts of sodium methyl cocoyl taurate, 4-5 parts of cocamidopropyl betaine, 4-5 parts of sodium cocoyl isethionate, and 4-5 parts of potassium lauryl phosphate. Further preferably, the body wash comprises the following components in parts by weight: 10 parts of sodium methyl cocoyl taurate, 5 parts of cocamidopropyl betaine, 5 parts of sodium cocoyl isethionate, and 5 parts of potassium lauryl phosphate.

[0009] The inventor found in the actual experiment process that when the above four surfactants, namely sodium methyl cocoyl taurate, cocamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate, are selected in the above specific parts by weight, the body wash prepared has a higher foaming rate, richer foam, better foaming effect, and better foam stability.

[0010] Preferably, the body wash further comprises the following components in parts by weight: 3-12 parts of a humectant, 0.5-1 part of an antipruritic agent, 0.5-1 part of a free radical scavenger, 0.01-0.05 part of a preservative, 0.01-0.05 part of a flavoring agent, and 50-80 parts of water.

[0011] Preferably, the humectant is at least one of sorbitol, glycerol, glucosylglycerol, and D-panthenol; the antipruritic agent is maltotetraose; the free radical scavenger is vitamin E; the preservative is phenoxyethanol; the flavoring agent is essence.

[0012] Preferably, the moisturizer is a mixture of sorbitol, glycerol, glucosylglycerol, and D-panthenol, and the weight ratio of sorbitol, glycerol, glucosylglycerol, and D-panthenol is sorbitol: glycerol: glucosylglycerol: D-panthenol = (1 - 5):(1 - 5):(0.5 - 1):(0.5 - 1).

[0013] During the actual experiment, the inventors found that when the moisturizer is a mixture of sorbitol, glycerol, glucosylglycerol, and D-panthenol, the prepared body wash can have a more ideal foam-stabilizing effect, thus effectively prolonging the defoaming time.

[0014] More preferably, the weight ratio of sorbitol, glycerol, glucosylglycerol, and D-panthenol is sorbitol: glycerol: glucosylglycerol: D-panthenol = (1 - 3):(3 - 5):(0.6 - 0.8):(0.6 - 0.8).

[0015] During the actual experiment, the inventors found that when the moisturizer is a mixture of sorbitol, glycerol, glucosylglycerol, and D-panthenol and in the case of the above specific weight ratio, the prepared body wash has the best foam-stabilizing effect, a longer defoaming time, and more stable bubbles.

[0016] In addition, the present invention also provides an aerosol foam body wash, comprising the body wash described above and a propellant, and the propellant is heptafluoropropane.

[0017] The propellant selected in the present invention is HFC-227ea, that is, heptafluoropropane, which is a non-flammable, non-explosive liquefied gas that is stable under normal temperature and pressure. It is colorless, odorless, and low-toxic, has no destructive effect on the atmospheric ozone layer (ODP value is zero), and stays in the atmosphere for 31 - 42 years, meeting the environmental protection requirements. HFC-227ea has higher safety in use than propane and butane, and is more environmentally friendly than common hydrofluorocarbons on the market. It is a propellant with excellent performance, safety, and environmental friendliness. Moreover, in the present invention, it can make the foam ejected from the product rich and firm, and it is not easy to have the situation of too high or too low pressure in the can. When the pressure is too high, it will splash when used, and when the pressure is low, the ejected foam is soft and has no elasticity.

[0018] Through the effective mixing and sufficient foaming of the propellant and the body wash, the present invention obtains dense and long-lasting foam, thereby improving the user experience and effectively reducing the usage amount of the body wash, and solving the problems of insufficient foaming and large usage amount of traditional foam pump-type foam body washes. At the same time, for the specific foam pump-type foam body wash of the present invention, by virtue of the natural advantages of the aerosol, the liquid material in the can is effectively isolated from the outside world, and it is difficult for external bacteria and fungi to enter the can, greatly reducing the risk of liquid material deterioration, and thus effectively reducing the use of preservatives.

[0019] Preferably, the weight ratio of the body wash to heptafluoropropane is body wash: heptafluoropropane = 100:(4 - 6).

[0020] During the actual experiment, the inventor found that when the weight ratio of the shower gel to heptafluoropropane is within the above specific range, the ejected foam is rich and firm, and it is not easy to have the situation of too high or too low pressure in the can.

[0021] Furthermore, the present invention also provides a preparation method of an aerosol-type bubble shower gel, which comprises the following steps:

[0022] (1) Dissolve sodium methyl cocoyl taurate, cocoamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate in deionized water to obtain a mixed solution A;

[0023] (2) Mix the moisturizer, antipruritic agent, free radical scavenger, preservative, and flavoring agent evenly, add them to the mixed solution A, and stir to obtain the shower gel;

[0024] (3) Fill the shower gel into an aerosol can, install a valve, seal it, fill it with a propellant, and install a nozzle to obtain the aerosol-type bubble shower gel.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention provides a shower gel. The four surfactants, namely sodium methyl cocoyl taurate, cocoamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate, are used in combination. The prepared shower gel has a high foaming rate, rich foam, good foaming effect, and good foam stability. (2) The present invention also provides an aerosol-type bubble shower gel. Through the effective mixing and sufficient foaming of the propellant and the shower gel, a dense and long-lasting foam is obtained, thereby improving the user experience and effectively reducing the usage amount of the shower gel, and solving the problems of insufficient foaming and large usage amount of traditional foam pump-type bubble shower gels. At the same time, for the specific foam pump-type bubble shower gel of the present invention, by virtue of the natural advantages of the aerosol, the liquid material in the can is effectively isolated from the outside world, and it is difficult for bacteria and fungi from the outside to enter the can, greatly reducing the risk of the liquid material deteriorating, thereby effectively reducing the use of preservatives. Description of the Drawings

[0026] Figure 1 It is a drawing of an aerosol-type bubble shower gel product in the embodiment; wherein, 1-valve; 2-nozzle; 3-propellent (gas phase); 4-container; 5-shower gel (including propellent liquid phase). Detailed Embodiments

[0027] To better illustrate the purpose, technical solution, and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments and drawings.

[0028] In the embodiments, unless otherwise specified, the experimental methods used are all conventional methods, and the materials, reagents, etc. used, unless otherwise specified, can all be obtained from commercial channels.

[0029] Examples 1 - 9 and Comparative Examples 1 - 5

[0030] The present invention provides an aerosol bubble bath lotion. The components and parts by weight of the aerosol bubble bath lotion are selected as described in Table 1 and Table 2. The total parts by weight of the bath lotion in the aerosol bubble bath lotion is 100 parts. A preparation method of an aerosol bubble bath lotion includes the following steps:

[0031] (1) Dissolve sodium methyl cocoyl taurate, cocoamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate in deionized water to obtain a mixed solution A;

[0032] (2) Mix the humectant, antipruritic agent, free radical scavenger, preservative, and flavoring agent evenly, add them to the mixed solution A, and stir to obtain the bath lotion;

[0033] (3) Fill the bath lotion into an aerosol can, install a valve, seal it, fill it with a propellant, and install a nozzle to obtain the aerosol bubble bath lotion.

[0034] Table 1

[0035]

[0036]

[0037] Table 2

[0038] Component (parts by weight) Comparative Example 1 Comparative Example 2 Comparative Example 3 Sodium methyl cocoyl taurate 15 10 10 Cocamidopropyl betaine - 5 5 Sodium cocoyl isethionate 5 10 5 Potassium lauryl phosphate 5 - 5 Sorbitol 2 2 - Glycerol 4 4 6 Glucosylglycerol 0.6 0.6 0.6 D-Panthenol 0.8 0.8 0.8 Maltotetraose 0.8 0.8 0.8 Vitamin E 0.8 0.8 0.8 Phenoxyethanol 0.02 0.02 0.02 Fragrance 0.02 0.02 0.02 Water Balance Balance Balance Body wash: heptafluoropropane 100：5 100：5 100：5

[0039] Comparative Example 4

[0040] Compared with Example 3, in Comparative Example 4, only sodium methyl cocoyl taurate is replaced by sodium lauroyl glutamate, and the other components, parts by weight, and preparation method are exactly the same as those in Example 3.

[0041] Comparative Example 5

[0042] Compared with Example 3, in Comparative Example 5, only cocoamidopropyl betaine is replaced by a sulfobetaine organosilicone amphoteric surfactant, and the other components, parts by weight, and preparation method are exactly the same as those in Example 3.

[0043] Performance Test

[0044] Test method: After thoroughly shaking the aerosol bubble bath lotions prepared in the examples and comparative examples, test the foam height, defoaming time, and foam density.

[0045] 1. Foam height: Thoroughly shake the product, spray 10 g of the product into a graduated cylinder with a capacity of 500 ml, and read the volume reading of the foam at this time.

[0046] 2. Defoaming time: Shake the product well, spray 200 ml of foam into a graduated cylinder with a capacity of 500 ml, and record the time when the foam height drops to the 100 ml scale line.

[0047] 3. Foam density: Comprehensively evaluate through cell size, foam elasticity, and softness, and divide it into 5 grades from 1 to 5. The larger the number, the greater the foam density.

[0048] The test results are shown in Table 3.

[0049] Table 3

[0050] Foam height (ml) Defoaming time (s) Foam density (grade) Example 1 382 279 4 Example 2 417 308 4 Example 3 435 313 5 Example 4 379 287 4 Example 5 401 293 4 Example 6 395 296 4 Example 7 429 310 4 Example 8 414 304 5 Example 9 458 314 5 Comparative Example 1 367 265 3 Comparative Example 2 372 264 3 Comparative Example 3 350 270 2 Comparative Example 4 347 268 2 Comparative Example 5 328 254 3

[0051] The aerosol bubble bath lotion prepared in the embodiments of the present invention is as Figure 1 shown.

[0052] It can be seen from the comparison between Examples 1-4 and Comparative Examples 1-5 that when the weight parts of the above 4 surfactants, namely sodium methyl cocoyl taurate, cocoamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate, are selected, it has a great influence on the final foam. When sodium methyl cocoyl taurate is 10 parts, cocoamidopropyl betaine is 5 parts, sodium cocoyl isethionate is 5 parts, and potassium lauryl phosphate is 5 parts, the foam height reaches 435 ml, the defoaming time is 313 s, and the foam density is grade 5.

[0053] It can be seen from the comparison between Examples 3, 5-7 that when the humectant is a mixture of sorbitol, glycerin, glucosylglycerol, and D-panthenol and the weight ratio of sorbitol: glycerin: glucosylglycerol: D-panthenol = (1-3): (3-5): (0.6-0.8): (0.6-0.8), the foam stabilizing effect of the prepared bath lotion reaches the best, and the defoaming time is longer, and the bubbles are more stable.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An aerosol bubble bath shower gel, characterized in that, it contains a shower gel and a propellant, and the propellant is heptafluoropropane; the weight ratio of the shower gel to heptafluoropropane is shower gel: heptafluoropropane = 100: (4 - 6); the shower gel includes the following components in parts by weight: 8 - 10 parts of sodium methyl cocoyl taurate, 4 - 5 parts of cocamidopropyl betaine, 4 - 5 parts of sodium cocoyl isethionate, 4 - 5 parts of potassium lauryl phosphate, 3 - 12 parts of a humectant, 0.5 - 1 part of an antipruritic agent, 0.5 - 1 part of a free radical scavenger, 0.01 - 0.05 part of a preservative, 0.01 - 0.05 part of a flavoring agent, and 50 - 80 parts of water; the humectant is a mixture of sorbitol, glycerol, glucosylglycerol, and D - panthenol, and the weight ratio of sorbitol: glycerol: glucosylglycerol: D - panthenol is (1 - 3): (3 - 5): (0.6 - 0.8): (0.6 - 0.8); the antipruritic agent is maltotetraose; the free radical scavenger is vitamin E; the preservative is phenoxyethanol; the flavoring agent is essence.

2. The shower gel according to claim 1, characterized in that, it includes the following components in parts by weight: 10 parts of sodium methyl cocoyl taurate, 5 parts of cocamidopropyl betaine, 5 parts of sodium cocoyl isethionate, and 5 parts of potassium lauryl phosphate.

3. A preparation method of the aerosol bubble bath shower gel according to claim 1, characterized in that, it includes the following steps: (1) Dissolve sodium methyl cocoyl taurate, cocamidopropyl betaine, sodium cocoyl isethionate, and potassium lauryl phosphate in deionized water to obtain a mixed solution A; (2) Mix the humectant, antipruritic agent, free radical scavenger, preservative, and flavoring agent evenly, add them to the mixed solution A, and stir to obtain the shower gel; (3) Fill the shower gel into an aerosol can, install a valve, seal it, fill it with the propellant, and install a nozzle to obtain the aerosol bubble bath shower gel.

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