Flame-retardant dry cleaning medium composition and application thereof

Abstract

The invention relates to a flame-retardant dry cleaning medium composition and application thereof. The flame-retardant dry cleaning medium composition comprises a dry cleaning solvent, a flame retardant and a builder. The dry cleaning medium composition provided by the invention not only has the advantage of flame retardance, but also is relatively high in safety, relatively safe to human bodies and environments, capable of removing water-soluble stains and oil-soluble stains at the same time, simple in operation steps and beneficial to household popularization.

Description

Technical Field

[0001] The present disclosure relates to the technical field of clothing cleaning, and particularly to a flame-retardant dry-cleaning medium composition and its application. Background Art

[0002] Clothes made of fabrics such as wool and silk will be severely damaged in terms of shape and color during conventional water washing. Therefore, clothes of the above type are generally dry-cleaned to remove stains while maintaining shape and protecting color.

[0003] Currently, most commercial dry-cleaning technologies use organic solvents as the main dry-cleaning medium, such as perchloroethylene, petroleum solvents, alcohol ether solvents, etc. Perchloroethylene has high solubility (KB value about 90) and a wide dissolution range, but its volatile gas is toxic and will pose a great safety hazard to operators and clothes during use. The flash point of petroleum solvents is relatively low (about 57°C), it is flammable, and there is an explosion risk when the volatile gas contained in the air reaches 20%. Alcohol ether solvents have strong degreasing ability (KB value about 100), but they also have the disadvantages of pungent smell and flammability.

[0004] At the same time, it is difficult for dry-cleaning media to remove water-soluble stains. To ensure the removal of water-soluble stains on clothes, pre-treatment of clothes is required before dry-cleaning. Generally, a bristle brush is used to dip into detergent or alcohol soap, etc. to brush the water-soluble stain area. Even so, there may still be residual water-soluble stains on the dry-cleaned clothes. And the operation steps of commercial dry-cleaning technologies are relatively complex, which is not conducive to popularization and application. Summary of the Invention

[0005] In order to solve the above technical problems, the present disclosure provides a flame-retardant dry-cleaning medium composition and its application.

[0006] In a first aspect, the present disclosure provides a flame-retardant dry-cleaning medium composition, which includes a dry-cleaning solvent, a flame retardant, and a co-cleaning agent.

[0007] As a preferred technical solution of the present disclosure, the flash point of the flame-retardant dry-cleaning medium composition is above 95°C.

[0008] As a preferred technical solution of the present disclosure, the ignition point of the flame-retardant dry-cleaning medium composition is above 400°C.

[0009] As a preferred technical solution of the present disclosure, by weight, it includes 30-65 parts by weight of dry-cleaning solvent, 25-70 parts by weight of flame retardant, and 5-15 parts by weight of co-cleaning agent.

[0010] As a preferred technical solution of the present disclosure, the dry-cleaning solvent is selected from cyclic siloxanes, preferably any one or a combination of at least two of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, or dodecamethylcyclohexasiloxane.

[0011] As a preferred technical solution of the present disclosure, the flame retardant is selected from any one or a combination of at least two of phosphorus-based flame retardants, halogen-based flame retardants or sulfur-based flame retardants, and is preferably a phosphorus-based flame retardant.

[0012] As a preferred technical solution of the present disclosure, the phosphorus-based flame retardant is selected from any one or a combination of at least two of tetrakis(hydroxymethyl)phosphonium chloride, N-hydroxymethyl-3-dimethoxyphosphinylpropanamide or dimethyl methylphosphonate.

[0013] As a preferred technical solution of the present disclosure, the washing aid is selected from any one or a combination of at least two of ionic surfactants, non-ionic surfactants or water, and preferably the washing aid is an aqueous solution of a non-ionic surfactant.

[0014] As a preferred technical solution of the present disclosure, in the aqueous solution of the non-ionic surfactant, the mass concentration of the non-ionic surfactant is 0.05-0.8%.

[0015] As a preferred technical solution of the present disclosure, the non-ionic surfactant is selected from any one or a combination of at least two of fatty alcohol polyoxyethylene ethers, alkylphenol polyoxyethylene ethers, polyethylene glycol fatty acid esters or polyoxyethylene alkylamines.

[0016] As a preferred technical solution of the present disclosure, the removal rate of the flame-retardant dry cleaning medium composition for oil-soluble stains is ≥90% and the removal rate for water-soluble stains is ≥80%.

[0017] In a second aspect, the present disclosure provides an application of the flame-retardant dry cleaning medium composition described in the first aspect in household cleaning.

[0018] The technical solutions provided by the embodiments of the present disclosure have the following advantages compared with the prior art:

[0019] (1) The dry cleaning medium composition provided by the present disclosure has a relatively high flash point and excellent flame retardancy during application;

[0020] (2) The dry cleaning medium composition provided by the present disclosure has low irritation, causes less environmental pollution, and is relatively safe for humans and the environment;

[0021] (3) The dry cleaning medium composition provided by the present disclosure can remove both water-soluble stains and oil-soluble stains simultaneously, with simple operation steps, which is conducive to household promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present disclosure, and are used together with the description to explain the principles of the present disclosure.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a comparison chart after cleaning and drying a standard wool load using the flame-retardant dry-cleaning medium compositions provided in Example 1 and Comparative Example 2 respectively. Detailed implementation manners

[0025] In order to more clearly understand the above objects, features and advantages of the present disclosure, the following will further describe the solutions of the present disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all the embodiments.

[0027] Currently commonly used dry-cleaning media are generally toxic and harmful, not only polluting the environment but also possibly causing certain damage to the human body, or some dry-cleaning media are extremely flammable and have a certain risk of fire, making it completely impossible to be applied in home dry cleaning.

[0028] At the same time, when using a dry-cleaning medium to wash clothes with stains, if the clothes have water-soluble stains, such as soy sauce, etc., it is usually necessary to first treat the water-soluble stains separately, with a cumbersome method and complex steps. For this reason, the present disclosure provides a dry-cleaning medium composition with flame-retardant properties and simple operation.

[0029] In a first aspect, the present disclosure provides a flame-retardant dry-cleaning medium composition, and the flame-retardant dry-cleaning medium composition includes a dry-cleaning solvent, a flame retardant, and a washing aid.

[0030] As a preferred technical solution of the present disclosure, the flash point of the flame-retardant dry-cleaning medium composition is above 95 °C.

[0031] As a preferred technical solution of the present disclosure, the ignition point of the flame-retardant dry-cleaning medium composition is above 400 °C.

[0032] In the present disclosure, by introducing a flame retardant into the dry-cleaning medium, the flash point of the dry-cleaning medium composition can be increased, the flame-retardant performance (flame resistance) of the dry-cleaning agent can be enhanced, and thus the safety of the dry-cleaning medium composition can be improved.

[0033] The flash points of the dry cleaning media provided by the present disclosure are all relatively high, and flash combustion will not occur within the use temperature range, which has high safety and can be used as a household dry cleaning medium.

[0034] As a preferred technical solution of the present disclosure, by weight, it includes 30-65 parts by weight of a dry cleaning solvent, 25-70 parts by weight of a flame retardant, and 5-15 parts by weight of a washing aid.

[0035] The 30-65 parts by weight of the dry cleaning solvent can be 32 parts by weight, 35 parts by weight, 38 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, etc.; the 25-70 parts by weight of the flame retardant can be 28 parts by weight, 30 parts by weight, 32 parts by weight, 35 parts by weight, 38 parts by weight, 40 parts by weight, 42 parts by weight, 45 parts by weight, 48 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight, etc.; the 5-15 parts by weight of the washing aid can be 6 parts by weight, 8 parts by weight, 9 parts by weight, 10 parts by weight, 12 parts by weight, etc.

[0036] As a preferred technical solution of the present disclosure, the dry cleaning solvent is selected from cyclic siloxanes, preferably any one or a combination of at least two of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, or dodecamethylcyclohexasiloxane.

[0037] The preferred dry cleaning solvent of the present disclosure is relatively safe for the environment and the human body, is not easy to pollute the environment, and is not likely to pose a safety hazard to personnel.

[0038] As a preferred technical solution of the present disclosure, the flame retardant is selected from any one or a combination of at least two of phosphorus-based flame retardants, halogen-based flame retardants, or sulfur-based flame retardants, preferably phosphorus-based flame retardants.

[0039] As a preferred technical solution of the present disclosure, the phosphorus-based flame retardant is selected from any one or a combination of at least two of tetrakis(hydroxymethyl)phosphonium chloride, N-hydroxymethyl-3-dimethoxyphosphinylpropanamide, or dimethyl methylphosphonate.

[0040] As a preferred technical solution of the present disclosure, the washing aid is selected from any one or a combination of at least two of ionic surfactants, non-ionic surfactants, or water, and preferably the washing aid is an aqueous solution of a non-ionic surfactant.

[0041] As a preferred technical solution of the present disclosure, in the aqueous solution of the non-ionic surfactant, the mass concentration of the non-ionic surfactant is 0.05-0.8%, such as 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, etc.

[0042] The detergent builder provided by the present disclosure has the best washing aid effect on the premise of introducing a non-ionic surfactant. At the same time, the non-ionic surfactant has an excellent washing aid effect in the presence of water. If only the non-ionic surfactant is introduced without introducing water, it may cause the non-ionic surfactant to not fully and effectively exert its washing aid effect.

[0043] As a preferred technical solution of the present disclosure, the non-ionic surfactant is selected from any one or a combination of at least two of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, polyethylene glycol fatty acid ester, or polyoxyethylene alkylamine.

[0044] The detergent builder selected by the present disclosure has the functions of wetting, penetrating, emulsifying, and dispersing water-soluble stains. The introduction of a cosolvent can increase the ability of the dry cleaning medium composition described in the present disclosure to remove water-soluble stains, and thus can avoid the step of additionally treating water-soluble stains with alcohol soap, etc. before applying the dry cleaning medium.

[0045] As a preferred technical solution of the present disclosure, the removal rate of the flame-retardant dry cleaning medium composition for oil-soluble stains is ≥90%, such as 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, etc., and the removal rate for water-soluble stains is ≥80%, such as 81%, 83%, 85%, 88%, 90%, 95%, etc.

[0046] The dry cleaning medium provided by the present disclosure simultaneously introduces an alcohol ether compound for oil-soluble stains and water for water-soluble stains. Therefore, it can simultaneously remove oil-soluble stains and water-soluble stains on clothes of different materials.

[0047] The dry cleaning medium composition provided by the present disclosure not only has the advantage of flame retardancy, but also has high safety, is relatively safe for the human body and the environment, and can also remove water-soluble stains and oil-soluble stains at the same time. The operation steps are simple, which is conducive to household promotion.

[0048] In a second aspect, the present disclosure provides an application of the flame-retardant dry cleaning medium composition described in the first aspect in household cleaning.

[0049] The dry cleaning medium provided by the present disclosure has excellent flame retardancy, can also remove water-based and oil-soluble stains, and is environmentally friendly and safe. Therefore, it can be used as a household dry cleaning medium in household cleaning to meet the daily cleaning needs.

[0050] Specific examples are provided below for illustration.

[0051] Example 1

[0052] This embodiment provides a flame-retardant dry-cleaning medium composition, which is composed of 40 parts by weight of dry-cleaning solvent, 60 parts by weight of flame retardant, and 10 parts by weight of washing aid, wherein:

[0053] The dry-cleaning solvent is decamethylcyclopentasiloxane, the flame retardant is dimethyl methylphosphonate, and the washing aid is an aqueous solution of fatty alcohol polyoxyethylene ether AEO-9 (the mass concentration of the surfactant is 0.3%).

[0054] Example 2

[0055] This embodiment provides a flame-retardant dry-cleaning medium composition, which is composed of 30 parts by weight of dry-cleaning solvent, 25 parts by weight of flame retardant, and 5 parts by weight of washing aid, wherein:

[0056] The dry-cleaning solvent is dodecamethylcyclohexasiloxane, the flame retardant is N-hydroxymethyl-3-dimethoxyphosphinylpropanamide, and the washing aid is an aqueous solution of dodecylphenol polyoxyethylene ether (the mass concentration of the surfactant is 0.8%).

[0057] Example 3

[0058] This embodiment provides a flame-retardant dry-cleaning medium composition, which is composed of 65 parts by weight of dry-cleaning solvent, 70 parts by weight of flame retardant, and 15 parts by weight of washing aid, wherein:

[0059] The dry-cleaning solvent is octamethylcyclotetrasiloxane, the flame retardant is dimethyl methylphosphonate, and the washing aid is an aqueous solution of polyoxyethylene alkylamine AC18 (the mass concentration of the surfactant is [0.05%]).

[0060] Example 4

[0061] This embodiment provides a flame-retardant dry-cleaning medium composition.

[0062] The difference from Example 1 is that in this embodiment, the flame retardant used is diphenylsulfone potassium sulfonate.

[0063] Examples 5-6

[0064] This embodiment provides a flame-retardant dry-cleaning medium composition.

[0065] The difference from Example 1 is that in this embodiment, the washing aid used is water (Example 5), an aqueous solution of sodium lauryl sulfate (mass concentration [0.3%], Example 6).

[0066] Comparative Example 1

[0067] This comparative example provides a dry-cleaning medium composition.

[0068] The difference from Example 1 is that in this comparative example, the composition does not include a flame retardant.

[0069] Comparative Example 2

[0070] This comparative example provides a dry-cleaning medium composition.

[0071] The difference from Example 1 is that in this comparative example, the composition does not include a builder.

[0072] Performance test

[0073] Perform performance tests on the dry-cleaning media provided in the examples and comparative examples, and the method is as follows:

[0074] (1) Combustion experiment: In a 250 mL beaker, add 20 mL of dry-cleaning medium, light a cotton cloth strip about 0.5 cm×5 cm, put it into the dry-cleaning medium, and observe the combustion situation of the cotton cloth strip;

[0075] (2) Flash point and ignition point: Test the flash point and ignition point of the dry-cleaning medium according to GB / T 261-2021 and GB / T 3536-2008 respectively;

[0076] The test results are shown in Table 1:

[0077] Table 1

[0078]

[0079]

[0080] Note: The dry-cleaning medium compositions provided in Examples 1-6 have no flash ignition phenomenon at -30 to 95 °C and no combustion phenomenon at 25 to 400 °C, and have excellent flame retardant effects.

[0081] As can be seen from Table 1, the dry-cleaning medium provided by the present disclosure has relatively high flash point and ignition point, is non-combustible, and has excellent safety.

[0082] (3) Stain removal rate: Use standard silk fabrics (GB / T7568.6-2002) and standard wool fabrics (GB / T7568.2-2002) to test by the whiteness method. The specific test method is as follows:

[0083] Take 15 μL of fresh stains (soy sauce, chili oil) and drop them on the standard load (5 cm×5 cm). After aging for 4 h, use a whiteness tester to test the pre-washing whiteness value and record it as Y1, and test the whiteness value of the standard load and record it as Y0. Immerse the load cloth with stains in the dry-cleaning medium, let it stand for 10 min, then stir it with a glass rod for 1 min, take it out, dry it in an oven at 60 °C, and test its post-washing whiteness value Y2. Calculate the oil-soluble stain removal rate and water-soluble stain removal rate respectively, where:

[0084] Stain removal rate W = (Y2 - Y1) / (Y0 - Y1)×100%;

[0085] Figure 1 The comparative graphs after cleaning and drying a wool standard load contaminated with soy sauce using the dry cleaning media provided in Example 1 and Comparative Example 2 respectively are shown. As can be seen from the graphs, the dry cleaning media provided in the present disclosure can achieve the cleaning of water-soluble stains.

[0086] The test results are shown in Table 2:

[0087] Table 2

[0088]

[0089]

[0090] As can be seen from Table 2, the dry cleaning media provided in the present disclosure can achieve the simultaneous removal of oil-soluble stains and water-soluble stains, and has excellent cleaning effects.

[0091] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0092] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flame-retardant dry-cleaning medium composition, characterized in that, The flame-retardant dry-cleaning medium composition comprises a dry-cleaning solvent, a flame retardant, and a washing aid.

2. The flame-retardant dry cleaning medium composition according to claim 1, wherein The flash point of the flame-retardant dry-cleaning medium composition is above 95 °C; and / or, the ignition point of the flame-retardant dry-cleaning medium composition is above 400 °C.

3. The flame-retardant dry cleaning medium composition according to claim 1 or 2, characterized in that By weight, it comprises 30-65 parts by weight of a dry-cleaning solvent, 25-70 parts by weight of a flame retardant, and 5-15 parts by weight of a washing aid.

4. The flame-retardant dry cleaning medium composition according to any one of claims 1-3, characterized in that, The dry-cleaning solvent is selected from cyclic siloxanes, preferably any one or a combination of at least two of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, or dodecamethylcyclohexasiloxane.

5. The flame-retardant dry-cleaning medium composition according to any one of claims 1-4, characterized in that, The flame retardant is selected from any one or a combination of at least two of phosphorus-based flame retardants, halogen-based flame retardants, or sulfur-based flame retardants, preferably phosphorus-based flame retardants.

6. The flame retardant dry cleaning medium composition according to claim 5, characterized in that, The phosphorus-based flame retardant is selected from any one or a combination of at least two of tetrakis(hydroxymethyl)phosphonium chloride, N-hydroxymethyl-3-dimethoxyphosphinylpropanamide, or dimethyl methylphosphonate.

7. The flame-retardant dry cleaning medium composition according to any one of claims 1-6, characterized in that, The washing aid is selected from any one or a combination of at least two of ionic surfactants, non-ionic surfactants, or water, and preferably the washing aid is an aqueous solution of a non-ionic surfactant; Preferably, in the aqueous solution of the non-ionic surfactant, the mass concentration of the non-ionic surfactant is 0.05-0.8%.

8. The flame-retardant dry cleaning medium composition according to claim 7, characterized in that, The non-ionic surfactant is selected from any one or a combination of at least two of fatty alcohol polyoxyethylene ethers, alkylphenol polyoxyethylene ethers, polyethylene glycol fatty acid esters, or polyoxyethylene alkylamines.

9. The flame-retardant dry-cleaning medium composition according to any one of claims 1-8, characterized in that, The removal rate of the flame-retardant dry-cleaning medium composition for oil-soluble stains is ≥90% and the removal rate for water-soluble stains is ≥80%.

10. Use of the flame-retardant dry-cleaning medium composition according to any one of claims 1-9 in household cleaning.

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