CN102178615A - Bath fluid - Google Patents

Abstract

The invention relates to a body liquid cleanser, in particular to a bath liquid containing a silk peptide-based surfactant, and belongs to the technical field of daily chemicals. According to mass percentage, its components include silk peptide-based surfactant, surfactant alkyl polyglycoside, lauryl betaine, moisturizing agent, electrolyte and so on. The silk peptide-based surfactant uses the fatty chain as the hydrophobic group and the silk peptide chain as the hydrophilic group, which are connected by amide bonds. The preparation method is to hydrolyze the silk fibroin protein obtained from natural cocoon silk to obtain the molecular weight 300-3000 silk fibroin peptide, and then react the silk fibroin peptide with fatty acid chloride. The body wash provided by the invention can effectively improve skin nutrition, enhance skin cell vitality and elasticity, and promote cell metabolism. The obtained product is safe and environmentally friendly, has good biodegradability, and meets the requirements of green chemistry.

Description

a body wash

technical field

The invention relates to a body liquid cleanser, in particular to a bath liquid containing a silk peptide-based surfactant, and belongs to the technical field of daily chemicals.

Background technique

Body wash is a liquid cleanser for the body, mainly used for cleaning the skin of the whole body. It overcomes the shortcomings of high pH value of soap, easy to cause skin dryness and degreasing, and less foam, so it is loved by consumers and has gradually replaced soap as the first choice for people's body cleansers.

The bath liquid requires good safety, can not irritate the skin, and its residual substances can not cause side effects on the skin and human body. It has mild detergency, does not degrease, has moderate foam and is easy to rinse, and its pH value is similar to that of the skin. From the point of view of the use of the main raw materials, the bath liquid has two kinds of soap-based bath liquid made of alkali metal soap made of natural oil and surfactant-based bath liquid made of synthetic detergent. In addition, substances with curative effects such as antipruritic, moisturizing, and nourishing can be added to increase the efficacy of the product and increase the added value of the product. With the development of the synthetic detergent industry, more and more surfactants with low irritation and low degreasing power are used in body washes. There are immediate or potential toxic effects that raise concerns about synthetic detergents. The disadvantage of soap-based body wash is that it is highly alkaline, which can damage the skin, and it is easy to deposit and block pores during bathing, resulting in poor comfort.

With the development of green chemistry in the field of detergents and the improvement of people's living standards, the quality requirements for bath liquids have also increased accordingly. New "green" surfactants with superior performance, mild to the human body, and eco-friendliness will be welcomed, especially Is the use of natural raw materials, the use of biomass-based surfactants has become a trend.

Contents of the invention

The purpose of the present invention is to overcome some deficiencies in the existing bath liquids, and provide a bath liquid formula that has a nutritional protection effect on human skin, so as to meet people's demand for high-quality, high-safety bath liquids.

The technical solution adopted in the present invention is: provide a body wash, its components include 10-25% silk peptide-based surfactant, 1-20% surfactant alkyl polyglycoside, 1-20% by mass percentage 15% lauryl betaine, 0.2-2% humectant, 0.1-0.5% pH regulator, 0.2-2% electrolyte, 0.5-5% pearlescent agent and 0.01-0.2% essence, the rest is deionized water;

The silk peptide-based surfactant has the fatty chain as the hydrophobic group and the silk peptide chain as the hydrophilic group, which are connected by amide bonds, and its structure is

,

Where: n is 8, 10, 12, 14, 16 or 18,

为丝素肽链，R₁、R₂、R₃及Rx为丝素肽链中所含不同氨基酸的侧链。

is the silk fibroin peptide chain, and R ₁ , R ₂ , R ₃ and Rx are the side chains of different amino acids contained in the silk fibroin peptide chain.

The moisturizing agent of the present invention is one of glycerin, pyrrolidone carboxylic acid, propylene glycol, hyaluronic acid or hydroxypropyl chitosan. The pH regulator is one of citric acid or malic acid. The electrolyte is one of sodium chloride, potassium chloride or sodium citrate. Described pearlescent agent is a kind of in ethylene glycol distearate or ethylene glycol monostearate.

The preparation method of the silk peptide-based surfactant of the present invention is as follows: hydrolyzing the silk fibroin protein obtained from natural cocoon silk to obtain silk peptides with a molecular weight of 300-3000; reaction to obtain the silk fibroin peptide-based surfactant. The fatty acid chloride is cocoyl chloride or palmitoyl chloride.

The preparation method of the bath liquid of the present invention is: accurately weigh and measure deionized water and add it to the reactor, and then add the weighed silk fibroin peptide-based surfactant, surfactant alkyl polyglycoside, dodecyl beet Alkali, pearlescent agent, humectant, heated to 60°C and stirred evenly. Cool to 45°C, add electrolyte to dissolve under stirring, cool to room temperature, add pre-dissolved pH regulator to adjust the pH value to 5.5-6.0, add measured essence, stir well to mix evenly, and then discharge.

The silk peptide-based surfactant of the invention is prepared by reacting the silk peptide obtained by hydrolyzing silk fibroin of natural cocoon silk with fatty acid chloride, and belongs to the surfactant based on biological matter. The silk fibroin obtained after degumming silkworm silk can be degraded into polypeptides by acid, alkali and enzymes, called silk peptides. Silk fibroin peptide contains 18 kinds of amino acids, some of which are necessary for the human body and cannot be produced by itself, so it can provide the necessary nutrients for the skin and hair. Regardless of normal skin or scarred skin, there is no redness and swelling when smeared with silk fibroin peptide, which shows that silk fibroin peptide has no abnormal irritation and allergic reaction to normal or scratched skin. Silk fibroin peptide is not only a natural moisturizing agent, but also its nutrients can be absorbed through the gaps and glands of skin cells, thereby improving skin nutrition, enhancing skin cell vitality and elasticity, promoting cell metabolism, and preventing skin damage. Cracking and chemical damage.

The invention has the advantages that: the provided bath liquid uses the silk peptide-based surfactant as the main raw material, is safe to the human body, improves skin nutrition, enhances skin cell vitality and elasticity, and promotes cell metabolism. The surfactant alkyl polyglycoside used is the product of the interaction between the hemiacetal hydroxyl group of glucose and alcohol, and the raw material is starch, which is safe and environmentally friendly, and has good biodegradability. The product meets the requirements of green chemistry.

The bath liquid provided by the invention has simple preparation process, natural and environment-friendly main raw materials, mild product performance and protective effect on skin.

Specific implementation method

The present invention will be further described below in conjunction with embodiment.

Embodiment one:

This embodiment prepares 100kg of bath liquid containing silk peptide-based surfactant, and the formula is composed as follows in parts by weight:

Silk peptide-based surfactant: 20kg;

Surfactant alkyl polyglycoside: 10kg;

Lauryl betaine: 8kg;

Hydroxypropyl chitosan: 0.3kg;

Citric acid: 0.2kg;

Potassium chloride: 1.0kg;

Ethylene glycol distearate: 0.6kg;

Flavor: 0.05kg;

Deionized water 59.85kg

The silk peptide-based surfactant used is prepared by reacting silk peptide with a molecular weight of 2000 and cocoyl chloride.

The preparation method is: accurately weigh 58kg of deionized water and add it to the reactor, and then add 20kg of silk fibroin peptide-based surfactant, 10kg of surfactant alkyl polyglycoside, 8kg of dodecyl betaine, and 0.6kg of ethylene glycol under stirring. Alcohol distearate, 0.3kg hydroxypropyl chitosan, heated to 60°C under stirring, and stirred for 1 hour. Cool to 45°C, add 1kg of potassium chloride to dissolve under stirring, cool to room temperature, add 0.2kg of citric acid pre-dissolved with 1.85kg of deionized water to adjust the pH value, add 0.05kg of essence, stir well to mix evenly, Ready to ship.

Embodiment two:

This embodiment prepares 100kg of bath liquid containing silk peptide-based surfactant, and the formula is composed as follows in parts by weight:

Silk peptide-based surfactant: 16kg;

Surfactant alkyl polyglycoside: 12kg;

Lauryl betaine: 10kg;

Glycerin: 1.0kg;

Malic acid: 0.3kg;

Sodium chloride: 1.2kg;

Ethylene glycol monostearate: 1.0kg;

Flavor: 0.08kg;

Deionized water 58.42kg

The silk peptide-based surfactant used is prepared by reacting silk peptide with a molecular weight of 800 and palmitoyl chloride.

The preparation method is: accurately weigh 56kg of deionized water and add it to the reactor, and then add 16kg of silk fibroin peptide-based surfactant, 12kg of surfactant alkyl polyglycoside, 10kg of dodecyl betaine, and 1.0kg of ethylene glycol under stirring. Alcohol monostearate, 1.0kg glycerin, heated to 60°C under stirring, and stirred for 1 hour. Cool to 45°C, add 1.2kg of sodium chloride to dissolve under stirring, cool to room temperature, add 0.3kg of malic acid pre-dissolved in 2.42kg of deionized water to adjust the pH value, add 0.08kg of essence, stir well to mix evenly , and the material can be discharged.

Claims (7)

1. bath foam, it is characterized in that: by mass percentage, its component comprises 10～25% silk polypeplide based surfactants, 1～20% surfactant alkyl polyglycoside, 1～15% empgen BB, 0.2～2% wetting agent, 0.1～0.5% pH regulator agent, 0.2～2% electrolyte, 0.5～5% pearling agent and 0.01～0.2% essence, all the other are deionized water;

Described silk polypeplide based surfactants is a hydrophobic group with the aliphatic chain, and the silk peptide chain is a hydrophilic group, and they connect by amido link, and its structure is

，

Wherein: n is 8,10,12,14,16 or 18,

Be fibroin peptide chain, R ₁, R ₂, R ₃And Rx is the side chain of contained different aminoacids in the fibroin peptide chain.

2. a kind of bath foam according to claim 1 is characterized in that: described wetting agent is a kind of in glycerol, 2-pyrrolidone-5-carboxylic acid, propylene glycol, hyaluronic acid or the hydroxypropyl chitosan.

3. a kind of bath foam according to claim 1 is characterized in that: described pH regulator agent is a kind of in citric acid or the malic acid.

4. a kind of bath foam according to claim 1 is characterized in that: described electrolyte is a kind of in sodium chloride, potassium chloride or the sodium citrate.

5. a kind of bath foam according to claim 1 is characterized in that: described pearling agent is a kind of in Ethylene Glycol Distearate or the ethylene glycol monostearate.

6. a kind of bath foam according to claim 1 is characterized in that: the preparation method of described silk polypeplide based surfactants is: will be hydrolyzed by the fibroin albumen that natural silk makes, obtain molecular weight and be 300～3000 silk polypeplide; Again silk polypeplide and fat acyl chloride are reacted, obtain the silk polypeplide based surfactants.

7. a kind of bath foam according to claim 6 is characterized in that: described fat acyl chloride is cocos nucifera oil acyl chlorides or Hexadecanoyl chloride.