CN106619182B - A kind of Transparent soap base bath composition of low-temperature stabilization - Google Patents

Abstract

The invention belongs to daily cosmetics fields, are related to a kind of soap base bath oil, especially a kind of Transparent soap base bath composition in low-temperature stabilization.The bath composition contains the fatty acid and a plurality of types of surfactants of higher concentration, it is under the premise of keeping high fatty acid, Transparent soap base bath composition still keeps transparent appearance after restoring room temperature at transparent state and (- 5 ± 2) DEG C at 5 DEG C, is precipitated without white adipose hydrochlorate.The bath composition has the characteristics that stablize, stimulates small, strong cleaning force, is transparent.

Description

A kind of Transparent soap base bath composition of low-temperature stabilization

Technical field

The invention belongs to daily cosmetics fields, are related to a kind of transparent, low-temperature stabilization soap base bath oil.

Background technique

In the epoch of current brand consumption and personalized consumption, consumer buys commodity not merely in order to meet substance need It wants, and more valuing commodity can be to oneself bring individual character satisfaction and spiritual happiness, this will be showed on sense organ by packaging. Wherein transparent wrapper carries out the visual performance of realism to product, and consumer can be allowed to be intuitive to see the true face of content Looks generate stronger visual impact and convincingness, enhance desire to purchase.Therefore, opaque products transparent wrapper is even more and is disappeared The favor of the person of expense.

Common shower cream washes and has a kind of " sliding ground " feeling with it, feels no thorough wash clean always, unlike Soap base shower cream is relatively easily rinsed well like that, and foaming power is splendid, and foaming abundancy is fine and smooth, and decontamination is due to soap in fact thoroughly Base bath composition is that fatty acid and alkali occur saponification and forms fatty acid salt, and alkali is mainly potassium hydroxide.(note: because using The alkali that sodium hydroxide generates is too hard, and the soap that triethanolamine generates is easy discoloration, and the dosage of potassium hydroxide depends on formula To the requirement of the degree of neutralization of fatty acid and potassium hydroxide in system, due to transparent effect to be reached, degree of neutralization must at least reach To 100 percent, even more than percent 100, pH is at least 10 or more) its fatty acid salt can ionize out K+ in aqueous solution And RCOO-.In RCOO- atomic group, polar-COO- is readily soluble in water, and nonpolar alkyl-R-portion is soluble in oil, Play cleaning action.Surfactant mildly and can be formed the same similar to soap based on amino acid surfactant Skin sense is more suitable for applying on soap base shower cream product.Transparent soap base bath composition in this way based on amino acid, i.e., mildly It does not stimulate and can clean up and feel without sliding, meet consumer demand.

For synthesis, transparent soap base bath composition can allow people to prefer, but Transparent soap base bath product is in low temperature Stability is poor, especially the Transparent soap base bath product containing high-content fatty acid.Because fatty acid is by carbon, hydrogen, three kinds of oxygen A kind of compound of element composition, by carbon chain lengths different classifications: it may be logically divided into short chain (containing 4~6 carbon atoms) fatty acid； Middle chain (containing 8~14 carbon atoms) fatty acid；Long-chain (containing 16~18 carbon atoms) fatty acid and overlength chain (contain 20 or more Carbon atom) four class of fatty acid, for their fusing point all at 40 degree or more, room temperature is in solid-state, therefore it is easy to be precipitated in low temperature, influences Obvious results fruit, content of fatty acid is higher, easier precipitation.

In the prior art, the cleaning force, gentle degree, transparency and stability of soap base bath composition cannot get both.In order to Improve the cleaning force of soap base bath oil, it will usually increase the content of fatty acid, however, the content of fatty acid improves then to transparent soap The stability of base brings very big challenge, and the high soap base bath composition of fatty acid acid content is easy that soap is precipitated at low temperature Base influences the property of product, meanwhile, the raising of content of fatty acid also increases irritation.

In order to solve the defect of Transparent soap base bath oil existing in the prior art, the present invention provides a kind of low-temperature stabilizations Transparent soap base bath composition.

Summary of the invention

It is an object of that present invention to provide a kind of transparent soap base bath oils.

Another object of the present invention is to provide a kind of soap base bath oils of low-temperature stabilization.

Another object of the present invention is to provide a kind of high fatty acid content, the soap base bath oils of strong cleaning force.

Another object of the present invention is to provide a kind of mild soap base bath oils.

Above-mentioned purpose of the invention is realized by following technological means:

The present invention provides a kind of bath composition, the component containing following parts by weight:

The anionic surfactant is selected from sodium cocoyl glycinate, cocoamido sodium propionate, lauroyl paddy ammonia One or more of acid disodium.

As preferred embodiment, bath oil of the invention contains the component of following parts by weight；

Embodiment more preferably, bath oil of the invention contain the component of following parts by weight；

The degree of neutralization of the bath oil is greater than or equal to 100%.

For the state for keeping soap base bath oil to keep transparent, the degree of neutralization in bath oil system need to be kept to be not less than 100%.The calculation method of degree of neutralization is: (purity of the dosage * potassium hydroxide of potassium hydroxide)/(dosage * of fatty acid in system The acid value of fatty acid).

The fatty acid is selected from acetic acid (acetic acid), propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, octanoic acid, n-nonanoic acid, capric acid, the moon Cinnamic acid (C12), myristic acid (C14), palmitinic acid (palmitic acid) (C16), pearly-lustre resin acid (C17), stearic acid (C18), arachidic acid (C20), behenic acid (C22), lignoceric acid (lignoceric acid) (C24), cerinic acid (C26), melissic acid (C30), in lacceroic acid (C32) One or more combination.

As preferably embodiment, the fatty acid is selected from lauric acid (C12) and myristic acid (C14) compounds；Into One step, the weight percent of moon silicic acid (C12) and myristic acid (C14) is 5-20:0.5-10.

The thickener is methylcellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxy ethyl fiber Element, guar gum, xanthan gum, acrylic acid (ester) analog copolymer, polyacrylamide, polyacrylic acid, Sodium Polyacrylate, polyvinyl pyrrole The combination of one or more of alkanone；It is preferred that hydroxypropyl methyl cellulose.

The polyalcohol is selected from one or more of glycerol, propylene glycol and 1,3 butanediols；Preferably glycerine and the third two Alcohol；Further, glycerol and the weight fraction ratio of propylene glycol are 1-15:1-20.

The alkali is selected from potassium hydroxide, sodium hydroxide or triethanolamine；It is preferred that potassium hydroxide.The alkali that sodium hydroxide generates It is too hard, and the soap that triethanolamine generates is easy discoloration.

Soap base bath composition of the invention also contains preservative, and the preservative can add in any bath oil The preservative added.

The remaining ingredient of soap base bath composition of the invention is deionized water.

In addition to above-mentioned component, soap base bath composition of the invention can also contain conditioner, active material, emollient And other additives.

Emollient such as vegetable fat avocado oil, jojoba oil etc., wool lipid, polyalkylsiloxane and fatty acid ester (such as glycerol monolaurate), polyhydric fatty acid esters and ethoxylation list (double) glyceride.They can also reduce surface-active The degreasing of agent and assign skin it is moist, with gloss.

Regulator is cationic polymer, has adhesion to protein base, keeps skin surface for example soyeux flat Sliding comfort.

The natural materials extract such as active material such as aloe, seaweed, sea-buckthorn, tealeaves, rose.

The content of fatty acid of Soap-base facial cleanser is usually between 28%-35%, and it typically is the opaque lotions of milky. Unlike Soap-base facial cleanser, the content of fatty acid in soap base bath oil is usually much lower, and maintenance is 10-12%.However, For the soap base bath oil of low fatty acid content, cleaning dynamics is limited.

In order to improve the cleaning dynamics of bath oil, the content of fatty acid need to be increased, however the increase of content of fatty acid, for The stability of bath oil brings very big influence, especially transparent bath oil.Because transparent soap base need to keep degree of neutralization to exist 100% or more, the fatty acid salt of white is easily precipitated in the bath oil of high-content fatty acid at low temperature.It is this variation be easy to by Consumer perceives, and not only influences the use feeling of consumer, also will affect the reputation of brand.Therefore, for transparent, high-fat The soap base bath oil of acid content maintains low-temperature stabilization to have great importance.

In the prior art, it has been reported that by adding polyalcohol such as glycerol, propylene glycol, 1,3 butanediols etc. improve fat The solubility of hydrochlorate, to prevent the low temperature of fatty acid salt to be precipitated.

In addition, the raising of content of fatty acid and the increase of degree of neutralization, can also be such that bath oil irritation enhances.

In the prior art, the stimulation for lowering product by adding mild surfactant is also had been reported that.

However, be not arbitrary addition polyalcohol, surfactant and control degree of neutralization, so that it may obtain it is transparent, Low-temperature stabilization, mild, strong cleaning force soap base bath oil.Existing soap base bath oil can always have one and not make us full The parameter of meaning.

The present invention is by adding particular kind of a plurality of types of surfactants, the anionic surface including amino acids Activating agent, nonionic surfactant coconut oleoyl amine MEA and zwitterionic surfactant Cocoamidopropyl betaine, with drop The irritation of low system, while increasing the low-temperature stability of system.The solubility that polyalcohol increases fatty acid salt is added simultaneously, with The body temperature stability of maintenance system.

The present invention also provides a kind of preparation methods of bath composition, and it includes following steps:

S1. thickener propylene glycol is scattered；

S2. deionized water is heated to 50-60 DEG C, the thickener dissolution of step S1 is added；

S3. continue to be heated to 80-85 DEG C, polyalcohol is added and alkali is perfectly homogenous obtains standby material A；

S4. fatty acid and coconut oleoyl amine MEA are individually heated to 80-85 DEG C, are completely dissolved to obtain standby material B；

S5. standby material A is rapidly joined in standby material B, insulated and stirred 40min continuously adds anionic surfactant With Cocoamidopropyl betaine, stir evenly, be cooled to 45 DEG C, preservative be added and stirs evenly.

Bath composition of the invention is provided simultaneously with following effect:

1) soap base bath composition degree of neutralization of the invention has transparent appearance, is liked by consumer 100% or more Love.

2) content of fatty acid is high, strong cleaning force；The content of fatty acid of general bath oil is invented between 10-12% The content of fatty acid of bath composition can maintain 15% or more, and simultaneously containing there are many surfactant, cleaning force Higher than common bath oil.

3) it does not stimulate mildly；A plurality of types of surfactants are added in system, main table living is amino acids table Face activating agent and amphoteric surfactant, it is possible to reduce the loss of protein and lipid in the process of cleaning avoids significantly influencing Skin barrier function.

4) low-temperature stabilization；In the case where high fatty acid content (>=15%), keep 5 DEG C at transparent state and (- 5 ± DEG C 2) transparent appearance is still kept after restoring room temperature at, white fatty acid salt is not precipitated.

Specific embodiment

Technical solution of the present invention is further illustrated below by way of specific embodiment, and specific embodiment does not represent to this hair The limitation of bright protection scope.Other people according to the present invention theory made it is some it is nonessential modification and adjustment still fall within this hair Bright protection scope.

The Transparent soap base bath composition of 1 low-temperature stabilization of embodiment

1 Transparent soap base bath oil of table

Continued 1

Comparative example 1-4

2 comparative example of table

2 performance test of embodiment

The combination 1,3,5,7,9,11 and comparative example 1-4 totally 10 combinations in embodiment 1 are chosen, tests its stabilization respectively Property, pH value, skin acid value and water loss value.

Degree of neutralization

(purity of the dosage * potassium hydroxide of potassium hydroxide)/(acid value of the dosage * fatty acid of fatty acid in system)

Stability

Heat-resisting: (40 ± 1) DEG C are kept for 24 hours, restore to room temperature within 7 days, 14 days, 21 days and 30 days to see whether to occur different Taste, layering, discoloration, separation, research of chaotic phenomenon.

Cold-resistant: (- 5 ± 2) DEG C are kept for 24 hours, are become with before experiment without obvious after restoring to room temperature within 7 days, 14 days, 21 days and 30 days Change and restores to room temperature to see whether peculiar smell, layering, discoloration, separation, research of chaotic phenomenon occur.

PH test

Using PH meter (METTLER TOLEDO), to 1,3,5,7,9,11 and comparative example 1-4 of combination, totally 10 samples carry out pH Test.

Skin acid value and the percutaneous water loss value of skin

1, project/parameter: the percutaneous water loss of skin, acid-base scale of skin

2, examination criteria (method): the measurement of measurement ZZ 0002-2016, acid-base scale of skin of the percutaneous water loss of skin ZZ 0006-20163

Experimental design: choosing 10 effective subjects and take one's test, and gives to combine 1,3,5,7,9,11 and in embodiment 1 Composition in comparative example 1-4.Sample and blank district are distributed in subject's inner forearm by test zone random distribution table Region, each area size are 3.0cm × 3.0cm, amount of samples 0.3g.The percutaneous moisture stream of preceding progress skin is used in product Test and acid-base scale of skin test are lost, the percutaneous water loss of skin is carried out using 1h and tests, it is percutaneous to carry out skin using 6h Water loss test and acid-base scale of skin test.

3, device information

DZCP-02-01 skin water loss test probe (Tewameter TM300)

DZCP-03-01 acid-base scale of skin test probe (Skin PH Meter PH905)

DZCP-11-01 electronic balance: ME204/02

4, early-stage preparations are tested

It tests first 2~3 days and the visiting same day, both hands inner forearm not use any product (cosmetics or externally applied drug Product), test test zone in morning on the same day not smear any product.

5. test process

A. before testing, subject need to uniformly be cleaned both hands inner forearm by staff, and clean method is with dry face-cloth Paper wipes 5 back and forth；

B. measured zone label is carried out in subject's inner forearm, test area area is 3cm × 3cm；

C. subject sits quietly at least 20min in the room for meeting test environment conditions, cannot drink water and beverage；

D. the initial value test of the percutaneous water loss of skin, acid-base scale of skin is carried out；

E. in subject's inner forearm according to test zone spread product, product dosage is 0.3g, and the painting used time, which loops, rubs 50 Under, then recipient site is placed in flowing water while rinsing under looping and rubbing 50, is then dried with dry face tissue；

F. the 1h after sample use carries out the percutaneous water loss of skin, is as a result denoted as 1h；

G. the 6h after sample use carries out the percutaneous water loss of skin, acid-base scale of skin test, is as a result denoted as 6h.

Experimental result:

What stability and PH were tested the results are shown in Table 3；

Percutaneous water loss result test is shown in Table 4；

The test of skin acid value result is shown in Table 5.

Table 3

Composition	Degree of neutralization	Content of fatty acid	Stability	pH
					Combination 1	101.6%	17	Holding in 30th day is stablized	10.41
Combination 3	106.5%	18	Holding in 30th day is stablized	10.45
					Combination 5	101.4%	18	Holding in 30th day is stablized	10.33
Combination 7	101.7%	17	Holding in 30th day is stablized	10.12
					Combination 9	106.5%	18	Holding in 30th day is stablized	10.50
Combination 11	101.4%	18	Holding in 30th day is stablized	10.00
					Comparison 1	101.4%	18	Low temperature is precipitated within 7th day	10.83
Comparison 2	101.4%	18	Low temperature is precipitated within 30th day	10.67
					Comparison 3	101.4%	18	Low temperature is precipitated within 21st day	10.78
Comparison 4	101.4%	18	Low temperature is precipitated within 7th day	10.63

As shown in Table 3, the content of fatty acid of embodiment and comparative example is above 15, and degree of neutralization is above 100%, can lead to Cross 40 DEG C of heat-resistant stability tests.Study on the stability phase of the low-temperature transparent soap base bath composition prepared by the present invention at 30 days It is interior, stable state is kept, no fatty acids salt out under high temperature and low temperature.Comparative example 1 is free of amino acids anion table There is low temperature precipitation, and its pH is slightly higher than remaining combination at the 7th day in face activating agent.Comparative example 2 is free of amphoteric surface Fatty acid salt was precipitated in the 30th day low temperature in activating agent, and comparative example 3 does not contain both sexes and nonionic surfactant, the There is low temperature precipitation within 21 days.Comparative example 4, although its table for containing anion (AES), both sexes and nonionic three types is living, so And it in first week of study on the stability phase, there have been the precipitations of fatty acid salt under cryogenic conditions.About the pH of composition, Comparative example and embodiment no significant difference, between pH10-10.8.The present composition can maintain high fatty acid content, Under the premise of transparent, low-temperature stabilization is kept not to be precipitated, it may be possible to have benefited from particular kind of anion surface active in system Agent, nonionic surfactant are compounded with zwitterionic surfactant.

The percutaneous water loss value of table 4

Percutaneous water loss is that the variation of monitoring stratum corneum barrier function is gone with non-invasive means, since cleaning product is easy Except skin lipid acts on, barrier function is reduced, cannot be prevented caused by stimulant and the anaphylactogen intrusion in external environment like that The damage of skin.Percutaneous water loss value is higher, shows more into the moisture of skin losses, and the barrier function of cuticula is poor. As shown in Table 4, compared to the blank group using composition of the invention, percutaneous water loss value is without significant difference.Show the present invention After composition is applied to skin, skin will not be caused to stimulate, damage skin barrier.Comparative example 1 is applied at first 6 hours through the severe edema due to hypofunction of the spleen Vector no significant difference is shunted, and then moisture of skin is rapidly losing after 12 hours.Comparative example 4 then at 6 hours just and blank group Percutaneous water loss show difference.

5 acid-base scale of skin of table

The pH value (pH value) of human skin surface is faintly acid, about between 4.5-6.5.It is secreted by skin What one layer of sebum film attachment that sweat and sebum are formed was formed on the skin, peracid skin is easy relaxation, and it is intense darkness without light, lack bullet Property, it is sensitive, it is oxidizable and easy by tanned sunburn；It is shrivelled to cross alkali skin, declines to bacterial resistance.

The skin acid value of the present composition is applied in the normal pH-value between 4.5-6.5, maintaining skin.

Claims (11)

1. a kind of bath composition: it is characterized in that containing the component of following parts by weight:

8-15 parts of zwitterionic surfactant Cocoamidopropyl betaine；

The composition is bath oil；

The composition also contains water；

The degree of neutralization of the bath oil is greater than or equal to 100%；

The anionic surfactant is selected from sodium cocoyl glycinate, cocoamido sodium propionate, lauroyl glutamate two One or more of sodium；

The fatty acid is that lauric acid and myristic acid compound.

2. bath composition as described in claim 1, which is characterized in that the weight percent of the lauric acid and myristic acid For 5-20:0.5-10.

3. the bath composition as described in claim 1-2 is any, which is characterized in that the thickener be methylcellulose, Hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, guar gum, xanthan gum, the copolymerization of acrylic acid (ester) class Object, polyacrylamide, polyacrylic acid, Sodium Polyacrylate, the combination of one or more of polyvinylpyrrolidone.

4. the bath composition as described in claim 1-2 is any, which is characterized in that the thickener is that hydroxypropyl methyl is fine Dimension element.

5. the bath composition as described in claim 1-2 is any, which is characterized in that the polyalcohol is selected from glycerol, the third two One of pure and mild 1,3 butanediol and several.

6. the bath composition as described in claim 1-2 is any, which is characterized in that the polyalcohol is glycerol and propylene glycol.

7. bath composition as claimed in claim 6, which is characterized in that the glycerol and the weight fraction ratio of propylene glycol are 1- 15:1-20.

8. the bath composition as described in claim 1-2 is any, which is characterized in that the alkali is selected from potassium hydroxide, hydrogen-oxygen Change sodium or triethanolamine.

9. the bath composition as described in claim 1-2 is any, which is characterized in that the alkali is potassium hydroxide.

10. the bath composition as described in claim 1-2 is any, which is characterized in that also contain preservative.

11. a kind of preparation method of bath composition described in any one of claim 10, which is characterized in that comprise the steps of:

S1. thickener propylene glycol is scattered；

S2. deionized water is heated to 50-60 DEG C, the thickener dissolution of step S1 is added；

S3. continue to be heated to 80-85 DEG C, polyalcohol is added and alkali is perfectly homogenous obtains standby material A；

S4. fatty acid and coconut oleoyl amine MEA are individually heated to 80-85 DEG C, are completely dissolved to obtain standby material B；

S5. standby material A is rapidly joined in standby material B, insulated and stirred 40min continuously adds anionic surfactant and coconut palm Oleamide propyl betaine stirs evenly, and is cooled to 45 DEG C, and preservative is added and stirs evenly.