CN116554969A - Laundry detergent for infants and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of laundry detergent, in particular to the field of IPC C11D1, and more particularly relates to laundry detergent for infants and a preparation method thereof. The components comprise: 10-20 parts of coconut oil derivative, 5-10 parts of plant extract, 0.5-2 parts of biological enzyme, 1-4 parts of softening factor, 2-4 parts of lemon essence, 2-4 parts of plant source surfactant, 1-3 parts of thickener, 1-2 parts of softener, 1-2 parts of polymer builder, 0.01-0.07 part of preservative and 60-100 parts of deionized water. The biological enzyme comprises alkaline protease and alkaline lipase, wherein the weight ratio of the alkaline protease to the alkaline lipase is 1: (0.3-0.6), the cleaning capability and the antibacterial performance of the laundry lotion can be further improved.

Description

Laundry detergent for infants and preparation method thereof

Technical Field

The invention relates to the technical field of laundry detergent, in particular to the field of IPC C11D1, and more particularly relates to laundry detergent for infants and a preparation method thereof.

Background

Infant skin is tender and resistant, and is especially easy to be infected by infectious microbe in the environment, clothes are the first barrier for protecting the infant skin from being damaged by the environment, skin cuticle is very thin, skin is sensitive, the control capability on acid and alkali is poor, and if the laundry detergent with potential safety hazard is used for a long time, the infant skin is damaged. The existing commercial children liquid laundry detergent is mostly added with anionic surfactant, and the natural product liquid laundry detergent is mostly conceptual product, and in order to meet the clean requirement, most of the liquid laundry detergent is added with chemical synthetic surfactant, enzyme preparation, brightening agent, fluorescent agent and preservative with poor safety, which are difficult to degrade or introduce dioxane into the detergent, or become formaldehyde donor, thus bringing potential safety hazard to physiological health and environment of people.

CN103710167B discloses a laundry detergent for infants and a preparation method thereof, which mainly comprises amino acid type surfactant, amine oxide, coconut oil fatty acid diethanolamide, alkyl glycoside and fatty alcohol sodium sulfate. The components are mixed, dissolved and the like to form the liquid laundry detergent. Through the mutual matching of the components and the proportion of the components, a layer of warm and skin-friendly protective film is formed on the surface of the fabric fiber, so that the friction among the fabric fibers can be reduced; the formed protective film is combined with moisture in the air, so that the clothes have certain degree of smoothness, static electricity is reduced, and the washed clothes are more flexible. However, the composition is not friendly to the environment due to the fact that the composition contains the anionic surfactant fatty alcohol sulfate, is irritative to the skin of infants, and contains methylisothiazolinone which is taken as a formaldehyde donor and can release formaldehyde.

Disclosure of Invention

In order to overcome the defects in the background art, the invention provides the laundry lotion for infants and the preparation method thereof, and the prepared laundry lotion for infants has excellent cleaning effect, is mild and non-irritating, and is safe and has no residues by adjusting the proportion of components.

In order to achieve the aim of the invention, the first aspect of the invention provides a laundry lotion for infants, which comprises the following components in parts by weight: 10-20 parts of coconut oil derivative, 5-10 parts of plant extract, 0.5-2 parts of biological enzyme, 1-4 parts of softening factor, 2-4 parts of lemon essence, 2-4 parts of plant source surfactant, 1-3 parts of thickener, 1-2 parts of softener, 1-2 parts of polymer builder, 0.01-0.07 part of preservative and 60-100 parts of deionized water.

The coconut oil derivative comprises at least one of coconut oil glyceride, coconut oil fatty acid and cocamidopropyl betaine.

Preferably, the coconut oil derivative comprises cocamidopropyl betaine, available from atan star chemical Co.

The plant extract comprises one of sinomenine extract (calulis Sinomenii), fomesas extract (Adonis amurensis Regel et Radde), mugwort extract (Artemisia argyi L pevl. Et Van.), soapberry peel extract (Sapindus saponaria Linnaeus), chinese honeylocust fruit extract (Gleditsia sinensis lam.), camellia extract (Camellia japonica L.), kuh-seng extract (Sophora flavescens alt.), palm extract (Trachycarpus fortunei (hook.) H.Wendl.).

Preferably, the plant extract comprises a Chinese honeylocust fruit extract and a camellia extract, wherein the weight ratio of the Chinese honeylocust fruit extract to the camellia extract is 1: (0.1-0.3).

Further preferably, the plant extract comprises a Chinese honeylocust fruit extract and a camellia extract, wherein the weight ratio of the Chinese honeylocust fruit extract to the camellia extract is 1:0.15.

the biological enzyme comprises alkaline protease and alkaline lipase, wherein the weight ratio of the alkaline protease to the alkaline lipase is 1: (0.3-0.6), model: AB15, available from Shenzhen Dai Kang En Biotech Co.

Preferably, the biological enzyme comprises alkaline protease and alkaline lipase, and the weight ratio of the alkaline protease to the alkaline lipase is 1:0.4, the alkaline protease, model: AB15; the alkaline lipase is of the type: AP10, available from Shenzhen Dai Kang En Biotech Co.

The compliance factor includes an amphoteric surfactant.

Preferably, the amphoteric surfactant comprises an imidazoline sulfate salt.

Further preferred, the amphoteric surfactant comprises imidazoline ethyl sulfate, the brand winning germany; model: VARISOFT 3696.

The emollient comprises small molecule alcohols.

Preferably, the emollient comprises octyl glycol.

The plant-derived surfactant includes an alkyl glycoside.

Preferably, the plant-derived surfactant comprises C ₈ -C ₁₄ Alkyl glycoside of (a).

Further preferably, the plant-derived surfactant comprises C ₈ -C ₁₄ Alkyl glycoside of (a), model: APG0810, from Jining Malus asiatica chemical industry Co.

Preferably, the lemon essence is purchased from Shandong Sun green engineering Co.

The thickener is natural thickener including rice starch, guar gum and xanthan gum.

Preferably, the thickener is guar gum, available from Sichuan Hua Tangju R.Biotech Inc.

The high molecular builder comprises at least one of acrylic acid polymer, maleic acid-acrylic acid polymer and polyurethane polymer.

Preferably, the polymeric builder comprises a maleic-acrylic acid polymer, model: WSP5, purchased from Weifang Jintai materials factory.

The preservative includes a pinus preservative.

Preferably, the preservative comprises at least one of Kathon CI-15, kathon K-100, and Kathon K-145.

Further preferably, the preservative comprises Kathon K-145 available from Guangzhou Seu Seagaku Biotechnology Co.

The applicant found that the weight ratio of coconut oil derivative to plant extract was 1: (0.4-0.8), which can improve the dispersion effect among components of the washing lotion, most of the plant extracts are substances such as essential oil, polysaccharide and saponin, the plant extracts have different hydrophobes, the coconut oil derivatives are used as amphoteric surfactants, wherein long alkyl chains are similar to the polarity of alkyl chains in the plant extracts, the dispersion wetting effect of the system is promoted, particularly, when the coconut oil derivatives are cocamidopropyl betaine, the cleaning capability and the antibacterial performance of the washing lotion can be further improved, and the coconut oil derivatives are particularly cocamidopropyl betaine, can be amide groups in the cocamidopropyl betaine, change the molecular performance, have better foam stability and warmth, can keep foamability in the presence of grease, so that the wettability between the washing lotion and clothes is improved, the amide groups can also have the effect of increasing the viscosity, the addition amount of a tackifier is reduced, and meanwhile, quaternary ammonium ions in the cocamidopropyl betaine are positively charged to show strong cationic property, and form electrovalence bonds (because the bacterial surface is electronegative) with a plurality of bacteria, so that bacterial cell walls can be stressed to cause bacterial death.

Preferably, the weight ratio of the coconut oil derivative to the plant extract is 1: (0.4-0.8).

Further preferably, the weight ratio of the coconut oil derivative to the plant extract is 1:0.5.

preferably, the weight ratio of the biological enzyme to the softening factor to the lemon essence is 1: (0.6-1.3): (1.8-4).

Further preferably, the weight ratio of the biological enzyme to the softening factor to the lemon essence is 1:1.3:3.

preferably, the weight ratio of the softening factor to the polymer builder is 1: (0.3-2).

Further preferably, the weight ratio of the softening factor to the polymer builder is 1:1.8.

the second aspect of the invention provides a method for preparing laundry lotion for infants, comprising the following steps:

step 1, adding a thickener into deionized water, and uniformly mixing to obtain a mixed solution 1;

step 2, sequentially adding coconut oil derivatives, plant extracts, biological enzymes, softening factors, lemon essence, plant source surfactants, softening agents and polymer builders into the mixed solution 1, heating to 50-70 ℃, and uniformly mixing to obtain a mixed solution 2;

and step 3, adding the preservative into the mixed solution 2, and uniformly mixing to obtain the preservative.

The beneficial effects are that:

1. the weight ratio of the coconut oil derivative to the plant extract is 1: (0.4-0.8), the dispersing effect among the components of the laundry lotion can be improved, and the residue of the components on clothes can be reduced.

2. The biological enzyme comprises alkaline protease and alkaline lipase, wherein the weight ratio of the alkaline protease to the alkaline lipase is 1: (0.3-0.6), the cleaning capability and the antibacterial performance of the laundry lotion can be further improved.

3. The weight ratio of the biological enzyme to the softening factor to the lemon essence is 1: (0.6-1.3): (1.8-4), the safety of the liquid laundry detergent can be improved, and the cleaning power of protein stains is improved, so that the liquid laundry detergent is particularly suitable for cleaning infant clothes containing milk stains.

4. The preservative comprises a pinus sylvestris preservative, which can reduce skin irritation.

5. The polymer builder can improve the low-temperature and high-temperature stability of the laundry detergent when the polymer builder comprises at least one of acrylic acid polymer, maleic acid-acrylic acid polymer and polyurethane polymer.

Detailed Description

Example 1

The laundry lotion for infants comprises the following components in parts by weight: 18 parts of coconut oil derivative, 9 parts of plant extract, 0.8 part of biological enzyme, 1.04 parts of softening factor, 2.4 parts of lemon essence, 2.1 parts of plant source surfactant, 2 parts of thickener, 1.2 parts of softener, 1.87 parts of polymer builder, 0.03 part of preservative and 100 parts of deionized water.

The coconut oil derivative is cocamidopropyl betaine, and is purchased from Jinan Chen Star chemical Co.

The plant extracts are a Chinese honeylocust fruit extract (Gleditsia sinensis lam.) and a camellia extract (Camellia japonica L.), and the weight ratio of the Chinese honeylocust fruit extract to the camellia extract is 1:0.15.

the biological enzyme is alkaline protease and alkaline lipase, and the weight ratio of the alkaline protease to the alkaline lipase is 1:0.4, the alkaline protease, model: AB15; the alkaline lipase is of the type: AP10, available from Shenzhen Dai Kang En Biotech Co.

The softening factor is an ampholytic surfactant, the ampholytic surfactant is imidazoline ethyl sulfate, and the brand is winning Germany, model: VARISOFT 3696.

The softening agent is octyl glycol.

The plant source surfactant is C ₈ -C ₁₄ Alkyl glycoside of (a), model: APG0810, from Jining Malus asiatica chemical industry Co.

The lemon essence was purchased from Shandong Sun green and biological engineering Co.

The thickener was guar gum, available from Sichuan Hua Tangju R.Biotech Inc.

The high molecular builder is a maleic acid-acrylic acid polymer, and the model is as follows: WSP5, purchased from Weifang Jintai materials factory.

The preservative is Kasong K-145, available from Guangzhou Jian Biotechnology Co.

A preparation method of laundry detergent for infants comprises the following steps:

step 1, adding a thickener into deionized water, and uniformly mixing to obtain a mixed solution 1;

step 2, sequentially adding coconut oil derivatives, plant extracts, biological enzymes, softening factors, lemon essence, plant source surfactants, softening agents and polymer builders into the mixed solution 1, heating to 50-70 ℃, and uniformly mixing to obtain a mixed solution 2;

and step 3, adding the preservative into the mixed solution 2, and uniformly mixing to obtain the preservative.

Example 2

The detailed description is the same as example 1; except that the components described in example 2 are: 19 parts of coconut oil derivative, 8 parts of plant extract, 0.8 part of biological enzyme, 1.1 part of softening factor, 2.3 parts of lemon essence, 2 parts of plant source surfactant, 1.8 parts of thickener, 1.3 parts of softener, 2 parts of polymer builder, 0.03 part of preservative and 100 parts of deionized water.

Example 3

The detailed description is the same as example 1; in contrast, the biological enzymes described in example 3 are alkaline protease and alkaline lipase, the weight ratio of alkaline protease to alkaline lipase being 1:0.6.

comparative example 1

The detailed description is the same as example 1; in contrast, the biological enzymes described in comparative example 1 include alkaline protease and alkaline lipase in a weight ratio of 1:0.2.

comparative example 2

The detailed description is the same as example 1; in contrast, the biological enzymes described in comparative example 2 include alkaline protease and alkaline lipase in a weight ratio of 1:1.

comparative example 3

The detailed description is the same as example 1; except that the components described in comparative example 3 were: 18 parts of coconut oil derivative, 9 parts of plant extract, 0.8 part of biological enzyme, 1.6 parts of softening factor, 1 part of lemon essence, 2.1 parts of plant source surfactant, 2 parts of thickener, 1.2 parts of softener, 1.87 parts of polymer builder, 0.03 part of preservative and 100 parts of deionized water.

Performance test method

The laundry dew prepared in examples 1 to 3 and comparative examples 1 to 3 were subjected to the following test, and the test data are shown in Table 1.

1. Appearance: visual inspection was made as to whether delamination occurred and whether suspended matter or precipitation was present.

2. High temperature stability: after 24h at 40℃and after returning to room temperature, it was observed whether there was a significant change from before the experiment.

3. Low temperature stability: after 24h at-5℃and after returning to room temperature, it was observed whether there was a significant change from before the experiment.

4. Detergency: referring to QB1224-2012, national standard protein dirt cloth JB-02, the washing concentration of the selected laundry detergent is 2g/L.

The laundry dew prepared in example 1 was subjected to the following test, and the test data are shown in table 2.

1. Skin irritation experiments: 24 hours before the test, the skin was cut on both sides of the back spine of each rabbit (supplied by the laboratory animal center of the university of western traffic medical school) and the dehairing range was 3x6cm each. The laundry lotion prepared in example 1 was applied at 0.5 mL/dose uniformly to the skin on one side of each rabbit, once daily, and on the opposite side as a solvent control. And continuously smearing for 14d. The hair is sheared before daily application, so that the skin is not damaged, and the test object is ensured to be fully contacted with the skin. The skin reaction was observed daily for the presence of erythema edema.

2. Acute oral toxicity test: mice fasted for 16 hours prior to the test, without limitation to drinking water. The test is weighed and the test subjects are gastrically administered to the mice at a dose of 5000mg/kg. The dosage is 0.1ml/10g.bw, and the animals are closely observed for abnormal poisoning appearance after 14 continuous days.

Performance test data

TABLE 1

TABLE 2

Claims (10)

1. The laundry lotion for infants is characterized by comprising the following components in parts by weight: 10-20 parts of coconut oil derivative, 5-10 parts of plant extract, 0.5-2 parts of biological enzyme, 1-4 parts of softening factor, 2-4 parts of lemon essence, 2-4 parts of plant source surfactant, 1-3 parts of thickener, 1-2 parts of softener, 1-2 parts of polymer builder, 0.01-0.07 part of preservative and 60-100 parts of deionized water.

2. The infant laundry lotion according to claim 1, wherein the coconut oil derivative comprises at least one of coconut oil glyceride, coconut oil fatty acid, cocoamidopropyl betaine.

3. The laundry lotion for infants according to claim 2, wherein the weight ratio of coconut oil derivative to plant extract is 1: (0.4-0.8).

4. A laundry lotion for infants according to claim 3, wherein the biological enzymes comprise alkaline protease and alkaline lipase in a weight ratio of 1:

(0.3-0.6)。

5. the infant laundry lotion according to claim 4, wherein the plant-derived surfactant comprises C ₈ -C ₁₄ Alkyl glycoside of (a).

6. The laundry lotion for infants according to claim 1 or 5, wherein the weight ratio of the bio-enzyme, the softener and the lemon essence is 1: (0.6-1.3): (1.8-4).

7. The laundry lotion for infants according to claim 6, wherein the ratio by weight of the softening factor to the polymeric builder is 1: (0.3-2).

8. The infant laundry lotion of claim 7, wherein the preservative comprises a kathon preservative.

9. The infant laundry lotion of claim 8, wherein the polymeric builder comprises at least one of an acrylic acid polymer, a maleic acid-acrylic acid polymer, and a polyurethane polymer.

10. A method for preparing the laundry lotion for infants according to claim 1, comprising the steps of:

step 1, adding a thickener into deionized water, and uniformly mixing to obtain a mixed solution 1;

step 2, sequentially adding coconut oil derivatives, plant extracts, biological enzymes, softening factors, lemon essence, plant source surfactants, softening agents and polymer builders into the mixed solution 1, heating to 50-70 ℃, and uniformly mixing to obtain a mixed solution 2;

and step 3, adding the preservative into the mixed solution 2, and uniformly mixing to obtain the preservative.