CN114989905B - Laundry gel bead with sterilization and disinfection effects and preparation method thereof - Google Patents

Abstract

The invention relates to a laundry bead with a sterilizing effect and a preparation method thereof, wherein the laundry bead with the sterilizing effect comprises a content and an outer layer; wherein the content comprises the following components in percentage by mass: 5-30% of parachlorometaxylenol, 2-20% of polyethylene glycol, 18-35% of dodecylbenzenesulfonic acid, 20-40% of other solvents, 5-20% of anionic surfactant, 3-10% of neutralizer, 1-20% of nonionic surfactant, 0.1-3% of auxiliary agent and water; the outer layer is a polyvinyl alcohol film. The invention ensures that the product has stronger sterilization and disinfection capability, and the prepared laundry gel bead has good compression resistance, the outer layer of the product is stiff and not soft, the liquid can be prevented from penetrating from the PVA film, and the product has excellent high-low temperature stability capability, and does not precipitate or delaminate under various conditions.

Description

Laundry gel bead with sterilization and disinfection effects and preparation method thereof

Technical Field

The invention belongs to the technical field of fabric washing and nursing, and particularly relates to a laundry gel bead with a sterilizing effect and a preparation method thereof.

Background

At present, as consumers pay more attention to healthy life, daily chemical washing products are required to bring additional added value in addition to meeting daily washing demands, so various products are generated and developed towards a multifunctional direction, such as softening, degerming, color protection and the like, but most products are only conceptually declared and cannot realize additional effects better.

Therefore, the washing gel bead product which can be used for washing, decontaminating, sterilizing and disinfecting at high efficiency, can be used quantitatively and conveniently, and can meet the requirements of healthy life has important significance and broad market prospect.

Laundry beadlet products have been developed that incorporate bactericides into compositions, such as: laundry beading products employing N, N-didecyl-N, N-dimethyl ammonium chloride (2280) bactericide in combination with dodecyl dimethyl benzyl ammonium chloride (1227), polyhexamethylene biguanide hydrochloride (IB), didecyl methyl hydroxyethyl ammonium chloride (DEQ) cationic surfactant; a product for improving the sterilization effect is realized by utilizing silver ion bactericides; the efficient sterilization of the laundry gel bead product is realized by compounding triclosan and a PCMX (para-chloro-m-xylenol) bactericide.

However, the above technical solution does not solve the problems that the oil-soluble bactericide is insoluble in water, and is easy to cause uneven dispersion and precipitation in the product by matching with a common solvent, and the problem that the outer layer of the gel bead is easy to collapse and crack due to the addition amount change of the common solvent, so that the stability of the product is insufficient.

In view of the foregoing, there is a need to develop a new technical solution, and provide a more stable laundry gel bead product with sterilization and disinfection effects, so as to solve the problems existing in the prior art and meet the development requirements of the current market.

Disclosure of Invention

Based on the above, the invention develops a laundry gel bead with sterilization and disinfection effects so as to overcome the defects of the prior art. According to the invention, polyethylene glycol solvent and other solvents are reasonably proportioned, and the dodecylbenzene sulfonic acid surfactant is compounded, so that a large amount of PCMX can be fully dissolved in a formula system, the product is ensured to have strong sterilization and disinfection capacity, meanwhile, the prepared laundry gel beads have good compression resistance, the outer layer of the product is stiff and does not collapse, liquid permeation from a PVA film can be prevented, and the product has excellent high-low temperature stability, and does not precipitate or delaminate under various conditions.

An object of the present invention is to provide a laundry detergent bead having a sterilizing effect, which includes a content and an outer layer;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the content comprises the following components in percentage by mass:

the outer layer of the laundry gel bead with the sterilization effect is a polyvinyl alcohol film;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the polyethylene glycol has the following structural general formula:

wherein n is 2-8.

Further, the content comprises the following components in percentage by mass:

further, the molecular weight of the polyethylene glycol is 100-400.

Further, the mass ratio of the polyethylene glycol to other solvents is not less than 1:4.

Further, the mass ratio of the polyethylene glycol to other solvents is not less than 1:3.

Further, the thickness of the polyvinyl alcohol film is 30-120 μm.

Further, the thickness of the polyvinyl alcohol film is preferably 70 to 100 μm.

Further, the appearance form of the laundry gel bead with the sterilization effect is selected from one of a single cavity, a double cavity and a three cavity.

Further, the other solvent is selected from one or more of glycerol, 1, 2-propylene glycol, isopropanol and ethanol.

Further, the anionic surfactant is selected from one or more of fatty alcohol polyoxyethylene sodium sulfate, oleic acid, lauric acid and coconut oleic acid.

Further, the neutralizing agent is selected from one or more of sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine and triethanolamine.

Further, the nonionic surfactant is one or more selected from fatty alcohol polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether and fatty acid methyl ester ethoxylate.

Further, the auxiliary agent is selected from one or more of fluorescent whitening agent, enzyme preparation, anti-redeposition agent, essence and pigment.

Further, the essence is selected from perfume components suitable for daily use chemical washing products, and the pigment is selected from dyes and pigments suitable for cosmetics.

Another object of the present invention is to provide a method for preparing the laundry detergent bead with sterilization and disinfection effects, which comprises the following steps:

s1, adding parachlorometaxylenol into a mixed solution of polyethylene glycol and other solvents, and stirring for dissolution;

s2, sequentially adding a neutralizing agent and dodecylbenzene sulfonic acid, stirring and dissolving, and then raising the temperature of the solution;

s3, adding an anionic surfactant, stirring for reaction, adding a nonionic surfactant, and stirring until the mixture is clear and transparent;

s4, cooling, adding an auxiliary agent and water, and uniformly stirring to obtain a concentrated solution;

s5, sealing and packaging the concentrated solution by using a polyvinyl alcohol film to obtain the laundry gel bead with the sterilizing effect.

The invention has the following beneficial effects:

1. the laundry gel bead with sterilization and disinfection effects has good sterilization and disinfection capability, and has the sterilization effect of 99.9 percent on staphylococcus aureus, escherichia coli, klebsiella pneumoniae and candida albicans

2. By adopting the combination and compounding of polyethylene glycol and other solvents in a certain proportion, the method has the unexpected discovery that the method can better dissolve PCMX and simultaneously keep PVA-coated gel beads stiff and not soft. The polyethylene glycol has a certain number of ether groups and two hydroxyl groups, so that the polyethylene glycol has better solubility; the number of carbon atoms is more than that of other solvents, and the hydroxyl serving as a hydrophobic chain segment well blocks the penetration of the solvent to the PVA polyvinyl alcohol water-soluble film, so that the gel beads are ensured not to collapse. In addition, the dodecyl benzene sulfonic acid is compounded with polyethylene glycol in a certain proportion, so that the stiffness of the coagulated beads can be further improved. According to analysis, the sulfonic acid group of dodecylbenzene sulfonic acid is not strong in hydrophilicity, but the benzene ring contained in the dodecylbenzene sulfonic acid has a certain steric hindrance effect, so that other surfactants and solvents can be better solubilized, and excessive penetration of hydrophilic groups into a PVA water-soluble film is prevented, so that the outer layer of the gel bead is prevented from generating soft collapse. The two components are compounded according to a specific proportion, so that a good synergistic effect is achieved, the prepared gel beads have good compression resistance, liquid permeation in a PVA film can be prevented, the outer layer of the gel beads is kept full and stiff, and the effect cannot be achieved by adding a single component.

3. The laundry gel beads with sterilization and disinfection effects have good stability, can be kept non-layered and non-precipitated in low-temperature, high-temperature or high-humidity environments, ensure the use experience and performance exertion of products, and have good application prospects.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following examples are set forth. The starting materials, reactions and workup procedures used in the examples are those commonly practiced in the market and known to those skilled in the art unless otherwise indicated.

The words "preferred," "more preferred," and the like in the present disclosure refer to embodiments of the present disclosure that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.

It should be understood that all numbers expressing, for example, amounts of ingredients used in the specification and claims, except in any operating example or otherwise indicated, are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.

Glycerin in the embodiment of the invention: solvents, purchased from tylotheca brown oxide.

1, 2-propanediol in the examples of the present invention: solvents, purchased from korea SK.

Polyethylene glycol 1 (n=2) in the examples of the present invention: purchased from guangzhou reagent factories.

Polyethylene glycol 2 (n=4) in the examples of the present invention: molecular weight 200, purchased from guangzhou reagent plant.

Isopropyl alcohol in the embodiment of the invention: solvents, available from Guangzhou chemical industry Co., ltd.

PCMX in the embodiment of the present invention: para-chloro-m-xylenol, available from Netchem Inc Canada.

Monoethanolamine in the embodiments of the present invention: neutralizing agent, available from basf.

Triethanolamine in the embodiment of the invention: neutralizing agent, available from basf.

Dodecylsulfonic acid in the examples of the present invention: anionic surfactant, purchased from south asian lake.

Oleic acid in the examples of the invention: anionic surfactants are available from pacific grease.

AES in the embodiment of the present invention: anionic surfactants were purchased from zanyu technology.

AEO9 in the examples of the invention: nonionic surfactants, available from basf.

TO8 in the embodiment of the invention: the isomeric tridecyl alcohol polyoxyethylene ether, a nonionic surfactant, is available from the basf Lutensol system.

The MEE in the embodiment of the invention comprises: nonionic surfactants are available from LION japan.

The respective components and the corresponding parts by weight of the laundry beads having sterilizing effect of examples 1 to 3 and comparative examples 1 to 4 are shown in table 1.

TABLE 1 Components and mass fractions (contents) of examples 1 to 3 and comparative examples 1 to 4

The preparation methods of the laundry beads with sterilization and disinfection effects in examples 1-3 are as follows:

s1, adding PCMX into a mixed solution of polyethylene glycol and other solvents according to the mass fraction, and stirring and dissolving;

s2, sequentially adding a neutralizing agent and dodecylbenzene sulfonic acid, stirring for 10min, and after the neutralizing agent and dodecylbenzene sulfonic acid are completely dissolved, raising the temperature of the solution to 50 ℃;

s3, adding an anionic surfactant, stirring and reacting for 20min, adding a nonionic surfactant, and stirring until the mixture is clear and transparent;

s4, cooling to 45 ℃, adding an auxiliary agent and water, and uniformly stirring to obtain a concentrated solution;

s5, sealing and packaging the concentrated solution in a sealing and packaging machine by using polyvinyl alcohol to obtain the laundry gel bead with the sterilizing effect.

The laundry beads of comparative examples 1-4 differ from examples 1-3 in that: the polyethylene glycol component is deleted or replaced, and other preparation methods and steps are the same.

Examples 4 to 6 and comparative examples 5 to 6 were additionally provided for stability test, and the respective components and the corresponding parts by mass of the laundry beads of examples 4 to 6 and the laundry beads of comparative examples 5 to 6 having sterilizing effect are shown in table 2.

TABLE 2 Components in examples 4-6 and comparative examples 5-6 and mass fractions thereof

	Example 4	Example 5	Example 6	Comparative example 5	Comparative example 6
						Composition and method for producing the same	H	I	J	K	L
Component (A)	Content (%)	Content (%)	Content (%)	Content (%)	Content (%)
						Glycerol	10	10	10	20	15
1, 2-propanediol	15	15	15	5	5
						PCMX	5	12	15	12	15
Polyethylene glycol 2	8	8	15	5	15
						Monoethanolamine	4	4	4	3	1
Triethanolamine salt	1	1	1	1	1
						Dodecyl benzene sulfonic acid	22	20	18	15	6
Oleic acid	3	3	3	0	1
						AES	1	1	1	5	5
AEO9	8	8	8	8	8
						TO8	3	0	0	10	10
Pigment	Proper amount of	Proper amount of	Proper amount of	Proper amount of	Proper amount of
						Essence	Proper amount of	Proper amount of	Proper amount of	Proper amount of	Proper amount of
Deionized water	Allowance of	Allowance of	Allowance of	Allowance of	Allowance of

The preparation methods of the laundry beads with sterilization and disinfection effects in examples 4-6 are as follows:

s1, adding PCMX into a mixed solution of polyethylene glycol and other solvents according to the mass fraction, and stirring and dissolving;

s2, sequentially adding a neutralizing agent and dodecylbenzene sulfonic acid, stirring for 10min, and after the neutralizing agent and dodecylbenzene sulfonic acid are completely dissolved, raising the temperature of the solution to 50 ℃;

s3, adding an anionic surfactant, stirring and reacting for 20min, adding a nonionic surfactant, and stirring until the mixture is clear and transparent;

s4, cooling to 45 ℃, adding an auxiliary agent and water, and uniformly stirring to obtain a concentrated solution;

s5, sealing and packaging the concentrated solution in a sealing and packaging machine by using polyvinyl alcohol to obtain the laundry gel bead with the sterilizing effect.

The laundry beads of comparative examples 5-6 differ from examples 4-6 in that: the content of each component in the laundry gel beads is changed, and other preparation methods and steps are the same.

Test example 1

Sterilization capability test

The testing method comprises the following steps: laundry beads with sterilization effect prepared in examples 1 to 3 were tested for sterilization and disinfection ability according to QB/T2738 standard method and disinfection specification (2002 edition). The specified test species are selected from staphylococcus aureus, escherichia coli, klebsiella pneumoniae and candida albicans.

Through tests, the laundry gel beads with sterilization and disinfection effects have good sterilization and disinfection capability, and the sterilization effect on staphylococcus aureus, escherichia coli, klebsiella pneumoniae and candida albicans is up to 99.9%, and the disinfection effect is up to 99.999%.

Test example 2

Test of pressure resistance

The testing method comprises the following steps: the laundry beads prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to a compressive resistance test. The WDS-1 microcomputer is adopted to control the universal testing machine, a pressure testing mode is entered, fixed-point stop is set to 1000N, a hot forming surface of a laundry gel bead sample is upwards, clicking is started, and the machine automatically tests and records a pressure value.

The test results are shown in table 3:

TABLE 3 results of pressure resistance test

As can be seen from table 3, in example 1, the compression resistance of the obtained product is significantly improved by introducing polyethylene glycol 1 in a preferred ratio range as compared with comparative examples 1 and 2; comparative example 1 uses isopropanol instead of glycerin, and does not significantly improve the appearance fullness and compression resistance of the beads. Comparative example 3 has an improvement in the compression resistance value relative to comparative example 2 by increasing the amount of sulfonic acid, but has little improvement in the degree of softness. The compression resistance of comparative example 4 was significantly improved by increasing the sulfonic acid content to 20%, compared with that of comparative example 3, and the degree of the bead collapse was improved, but the expected effect was not achieved. In the embodiment 2 and the embodiment 3, polyethylene glycol 1 is replaced by polyethylene glycol 2 with different contents (within the preferred proportion range of the technical scheme of the invention), and simultaneously, the dosage of sulfonic acid is increased (within the preferred proportion range of the technical scheme of the invention), so that the compression resistance of the obtained laundry gel beads is greatly improved to more than 1000N, the appearance of the gel beads is full and stiff, and the improvement effect is obvious.

Test example 3

Stability test

The testing method comprises the following steps: stability tests were performed on the laundry beads prepared in examples 4 to 6 and comparative examples 5 to 6. The relevant stability specific investigation indexes are as follows:

low temperature stability: the sample was placed in a refrigerator at 0℃for 4 weeks, and the temperature was returned to normal temperature to observe the appearance.

High temperature stability: the sample was placed in an oven at 45 ℃ for 4 weeks, restored to normal temperature, and observed for appearance.

High temperature and high humidity stability: the sample was placed in a constant temperature and humidity cabinet for 4 weeks (40 ℃ C./75% humidity), and the temperature was returned to normal temperature to observe the appearance.

The test results are shown in table 4:

table 4 stability test results

Sample of	Low temperature stability	High temperature stability	High temperature and high humidity stability
				Example 4	No delamination and no precipitation	No delamination and no precipitation	No delamination and no precipitation
Example 5	No delamination and no precipitation	No delamination and no precipitation	No delamination and no precipitation
				Example 6	No delamination and no precipitation	No delamination and no precipitation	No delamination and no precipitation
Comparative example 5	Layering and obvious precipitation	Layering and obvious precipitation	Layering and obvious precipitation
				Comparative example 6	Severe turbidity	Layering and obvious precipitation	Layering and obvious precipitation

As can be seen from Table 4, examples 4-6 correspond to laundry gel bead products with good stability, but precipitation delamination occurred in the stability test of comparative examples 5-6. Therefore, the PCMX bactericide is not simply added in the formula of the disinfection and sterilization laundry gel bead, and the stability of the laundry gel bead has a great relation with the components and the content thereof in the formula.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. The laundry gel bead with the sterilization and disinfection effects is characterized by comprising a content and an outer layer;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the content consists of the following components in percentage by mass:

5-30% of parachlorometaxylenol

Polyethylene glycol 2-20%

Dodecyl benzene sulfonic acid 18-35%

Other solvents 20-40%

3-10% of neutralizer

Nonionic surfactant 1-20%

Other anionic surfactant 5-20%

0.1 to 3 percent of auxiliary agent

Water;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the molecular weight of the polyethylene glycol is 100-400, and the polyethylene glycol has the following structural general formula:

wherein n is 2-8;

the other solvent is one or more selected from glycerol, 1, 2-propylene glycol, isopropanol and ethanol;

the other anionic surfactant is sodium fatty alcohol polyoxyethylene ether sulfate;

the neutralizer is one or more selected from sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine and triethanolamine;

the nonionic surfactant is one or more selected from fatty alcohol polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether and fatty acid methyl ester ethoxylate;

the auxiliary agent is one or more selected from fluorescent whitening agent, enzyme preparation, anti-redeposition agent, essence and pigment;

the outer layer is a polyvinyl alcohol film.

2. The laundry gel bead with sterilization and disinfection effect according to claim 1, wherein the content consists of the following components in mass fraction:

5-20% of parachlorometaxylenol

Polyethylene glycol 5-15%

Dodecyl benzene sulfonic acid 20-30%

Other solvents 20-40%

3-10% of neutralizer

Nonionic surfactant 1-20%

Other anionic surfactant 5-20%

0.1 to 3 percent of auxiliary agent

And (3) water.

3. The laundry gel bead having a sterilizing effect according to claim 1, wherein the polyvinyl alcohol film has a thickness of 30 to 120 μm.

4. A method for preparing laundry beads having a sterilizing effect according to any one of claims 1 to 3, wherein the method for preparing laundry beads having a sterilizing effect comprises the steps of:

s1, adding parachlorometaxylenol into a mixed solution of polyethylene glycol and other solvents, and stirring for dissolution;

s2, sequentially adding a neutralizing agent and dodecylbenzene sulfonic acid, stirring and dissolving, and then raising the temperature of the solution;

s3, adding other anionic surfactants, stirring for reaction, adding nonionic surfactants, and stirring until the mixture is clear and transparent;

s4, cooling, adding an auxiliary agent and water, and uniformly stirring to obtain a concentrated solution;

s5, sealing and packaging the concentrated solution by using a polyvinyl alcohol film to obtain the laundry gel bead with the sterilizing effect.