A composition for cleaning lipstick stains on fabric and a method of making the same
Patent Information
- Application Number
- CN202611180137.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-05
- Publication Date
- 2026-10-20
AI Technical Summary
部分产品为提高对油性污渍的溶解能力，采用较强的有机溶剂或较高浓度的表面活性剂；然而，强溶剂体系在用于丝绸、羊毛、聚酯纤维及其混纺织物时，可能存在使织物局部手感变硬、产生褪色、形成环状印迹或残留气味的问题
（1）本发明采用具有式（I）所示结构的聚酯溶剂、N,N-二甲基癸酰胺和二乙二醇丁醚构成复合溶剂体系，并与脂肪醇聚氧乙烯醚硫酸钠和脂肪醇聚氧乙烯醚AEO-9构成的表面活性剂体系配合使用。其中，聚酯溶剂、N,N-二甲基癸酰胺和二乙二醇丁醚能够共同提高对口红污渍中油脂、蜡质、酯类组分及部分色素残留物的浸润、溶解和剥离能力；脂肪醇聚氧乙烯醚硫酸钠和脂肪醇聚氧乙烯醚AEO-9有助于将被溶解或剥离的污渍乳化、分散，从而降低污渍再次附着于织物纤维表面的可能性。
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Abstract
Description
Technical Field
[0001] This invention belongs to the field of textile cleaning technology, specifically relating to a composition for cleaning lipstick stains on textiles and its preparation method. Background Technology
[0002] Lipstick is a common cosmetic product in daily life, typically containing a variety of components such as oils, waxes, ester moisturizing ingredients, pigments, film-forming agents, and fragrances. When lipstick gets on fabric surfaces such as collars, cuffs, pockets, and tablecloths, the oils and waxes easily penetrate between the fabric fibers, while the pigments and film-forming components tend to adhere to the fiber surface, forming a complex stain with characteristics of oiliness, waxiness, and pigmentation. Especially for lipstick stains that have been left for a long time, the oil, wax, and pigment components in the stain will further solidify and adhere to the fabric fibers, making it difficult to remove quickly and thoroughly with just water or ordinary detergents.
[0003] Existing fabric stain removal products typically treat stains using organic solvents, surfactants, or a combination of both. Some products employ strong organic solvents or high concentrations of surfactants to enhance their solubility for oily stains; however, strong solvent systems may cause problems such as localized hardening of the fabric, fading, ring-shaped stains, or residual odor when used on silk, wool, polyester fibers, and their blends. Some water-based systems, primarily based on surfactants, do not penetrate sufficiently into the waxes, oils, and esters in lipstick, and their removal efficiency, especially for hardened lipstick stains, still needs improvement.
[0004] In addition, for the rapid treatment of localized lipstick stains on fabrics, the stain removal composition should not only have good stain removal ability, but also appropriate fluidity and stability, so as to facilitate treatment by dripping, spraying, cotton swab application or other localized liquid application methods; at the same time, it should also avoid the formation of obvious ring-shaped color rings after the fabric dries. Summary of the Invention
[0005] To address the aforementioned problems, this invention provides a composition for cleaning lipstick stains on fabrics and its preparation method, which balances the effectiveness in removing complex lipstick stains, fabric applicability, and convenience for localized treatment.
[0006] The technical solution provided by this invention is as follows: On one hand, a composition for cleaning lipstick stains on fabrics, comprising, by weight, the following components: 3-10 parts polyester solvent; 12-25 parts of N,N-dimethyldecanoamide; 8-20 parts of diethylene glycol butyl ether; 8-18 parts of sodium fatty alcohol polyoxyethylene ether sulfate; Fatty alcohol polyoxyethylene ether AEO-9 5-15 parts; Citric acid 0.5-2 parts; Add deionized water to bring the total to 100 parts; The pH of the composition is 6.0-7.5; Polyester solvents have the structure shown in formula (I):
[0007] (I) In the formula, n is an integer from 11 to 17, and p is an integer from 2 to 6.
[0008] In some embodiments, by weight, the polyester solvent is 4-6 parts, N,N-dimethyldecylamide is 15-20 parts, diethylene glycol butyl ether is 10-14 parts, sodium fatty alcohol polyoxyethylene ether sulfate is 10-14 parts, fatty alcohol polyoxyethylene ether AEO-9 is 6-10 parts, and citric acid is 0.8-1.2 parts.
[0009] In some embodiments, the characteristic feature is that the mass ratio of sodium fatty alcohol polyoxyethylene ether sulfate to fatty alcohol polyoxyethylene ether AEO-9 is 1:(0.4-1.2).
[0010] In some embodiments, the mass ratio of N,N-dimethyldecanoamide to diethylene glycol butyl ether is 1:(0.4-1.2).
[0011] In some embodiments, it also includes 0.1-0.5 parts of preservative and 0.1-0.3 parts of fragrance.
[0012] On the other hand, a method for preparing a composition for cleaning lipstick stains on fabrics, comprising the following steps: S1. Add some deionized water to the reactor, heat to 40-45℃, and stir; S2. Add N,N-dimethyldecylamide and diethylene glycol butyl ether, and stir until completely miscible to obtain a mixed solvent phase; S3. Add sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 to the mixed solvent phase, and stir until completely dissolved to obtain a mixed solution. S4. After pre-dispersing the polyester solvent with some deionized water, add it to the mixture and continue stirring; S5. Add citric acid to adjust the pH to 6.0-7.5; S6. Add the remaining deionized water to make up to 100 parts, stir until a homogeneous and transparent liquid is obtained, and the composition is obtained.
[0013] In some implementations, in step S1, 30-40 parts of deionized water are added.
[0014] In some embodiments, in step S3, sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 are added to the mixed solvent phase at a stirring speed of 200-300 rpm.
[0015] In some embodiments, stirring is continued for 15-20 minutes after the polyester solvent is added.
[0016] In some embodiments, after step S6, preservatives and flavorings are added and stirred until homogeneous.
[0017] In summary, the beneficial effects of this invention are: (1) The present invention uses a composite solvent system consisting of a polyester solvent having the structure shown in Formula (I), N,N-dimethyldecylamide, and diethylene glycol butyl ether, and uses it in conjunction with a surfactant system consisting of sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9. Among them, the polyester solvent, N,N-dimethyldecylamide, and diethylene glycol butyl ether can jointly improve the ability to wet, dissolve, and peel off oil, wax, ester components, and some pigment residues in lipstick stains; sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 help to emulsify and disperse the stains that have been dissolved or peeled off, thereby reducing the possibility of stains re-adhering to the surface of fabric fibers.
[0018] (2) In this technical solution, the removal effect of the composition on lipstick stains is significantly improved when polyester solvent and N,N-dimethyldecylamide are added. At the same time, the pH of the composition of the present invention is controlled within the range of 6.0-7.5, the treated fabric has a small bending length, and most examples do not produce obvious ring marks. Therefore, the composition of the present invention can take into account the stain removal effect, the softness of the treated fabric and the appearance retention performance in the process of treating local lipstick stains on fabrics, and is suitable for cleaning lipstick stains on cotton, linen, silk, wool, polyester and their blended fabrics. Detailed Implementation
[0019] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. The following embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.
[0020] This invention provides a composition for cleaning lipstick stains on fabrics. The composition, by weight, comprises 3-10 parts polyester solvent, 12-25 parts N,N-dimethyldecylamide, 8-20 parts diethylene glycol butyl ether, 8-18 parts sodium fatty alcohol polyoxyethylene ether sulfate, 5-15 parts fatty alcohol polyoxyethylene ether AEO-9, 0.5-2 parts citric acid, and the balance being deionized water. The pH of the composition is 6.0-7.5.
[0021] The polyester solvent has the structure shown in formula (I):
[0022] (I) In the formula, n is an integer from 11 to 17, and p is an integer from 2 to 6.
[0023] In this invention, polyester solvent, N,N-dimethyldecylamide, and diethylene glycol butyl ether together constitute a system for dissolving and penetrating grease, wax, ester components, and some pigment residues in lipstick stains. Sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 together constitute a surfactant system, used to promote the dispersion of lipstick stains that have been detached from the fabric fiber surface into the system and reduce the possibility of stains re-adhering to the fabric surface. Citric acid is used to adjust the pH of the composition, maintaining it within a neutral or weakly acidic range, making it suitable for localized lipstick stain treatment on cotton, linen, silk, wool, polyester, and their blended fabrics.
[0024] In some embodiments, the composition may further include 0.1-0.5 parts of preservative and 0.1-0.3 parts of fragrance. The preservative can be used to improve the stability of the composition during storage, and the fragrance can be used to improve the odor of the composition. After adding the preservative and fragrance, the amount of deionized water is reduced accordingly to maintain the total weight of all components at 100 parts.
[0025] The composition of the present invention can be prepared according to the following method: First, add 30-40 parts of deionized water to the reactor and heat to 40-45°C, stabilizing the temperature under stirring. Then, add N,N-dimethyldecylamide and diethylene glycol butyl ether, stirring until they are completely miscible to obtain a mixed solvent phase. Next, slowly add sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 at a stirring speed of 200-300 rpm, continuing to stir until completely dissolved to obtain a mixture. Then, pre-disperse the polyester solvent using some deionized water and slowly add it to the mixture, continuing to stir for 15-20 minutes. Next, add citric acid to adjust the pH of the system to 6.0-7.5. Finally, add the remaining deionized water to make up to 100 parts, stirring until the system is a homogeneous and transparent liquid, thus obtaining the composition for cleaning lipstick stains on fabrics.
[0026] In an optional implementation, after replenishing the deionized water, preservatives and fragrances can be added, and the mixture can be stirred until it is homogeneous.
[0027] Example 1
[0028] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 5 parts polyester solvent, 18 parts N,N-dimethyldecylamide, 12 parts diethylene glycol butyl ether, 12 parts sodium fatty alcohol polyoxyethylene ether sulfate, 8 parts fatty alcohol polyoxyethylene ether AEO-9, 1 part citric acid, and the balance being deionized water.
[0029] In the preparation process, 35 parts of deionized water were first added to the reaction vessel, heated to 42°C and stirred; N,N-dimethyldecylamide and diethylene glycol butyl ether were added and stirred until completely miscible; then sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 were added at a stirring speed of 250 rpm and stirred until completely dissolved; the polyester solvent was pre-dispersed with a portion of deionized water and then slowly added to the above mixture, and stirring was continued for 18 minutes; citric acid was added to adjust the pH of the system to 6.8; finally, the remaining deionized water was added to make up to 100 parts, and the mixture was stirred until it was homogeneous and transparent to obtain the composition of this embodiment.
[0030] Example 2
[0031] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 3 parts polyester solvent, 12 parts N,N-dimethyldecylamide, 8 parts diethylene glycol butyl ether, 8 parts sodium fatty alcohol polyoxyethylene ether sulfate, 5 parts fatty alcohol polyoxyethylene ether AEO-9, 0.5 parts citric acid, and the balance being deionized water.
[0032] This embodiment was prepared according to the method of Example 1, except that the amount of each component added was as described above. After preparation, the resulting composition was a homogeneous and transparent liquid, and the pH was adjusted to 6.0-7.5.
[0033] Example 3
[0034] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 5 parts polyester solvent, 18 parts N,N-dimethyldecylamide, 12 parts diethylene glycol butyl ether, 18 parts sodium fatty alcohol polyoxyethylene ether sulfate, 15 parts fatty alcohol polyoxyethylene ether AEO-9, 1 part citric acid, and the balance being deionized water.
[0035] This embodiment was prepared according to the method of Example 1, except that the amount of sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 was appropriately increased to improve the emulsification and dispersion ability of the composition on the stripped stains. After preparation, the resulting composition was a homogeneous and transparent liquid, and the pH was adjusted to 6.0-7.5.
[0036] Example 4
[0037] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 5 parts polyester solvent, 25 parts N,N-dimethyldecylamide, 20 parts diethylene glycol butyl ether, 12 parts sodium fatty alcohol polyoxyethylene ether sulfate, 8 parts fatty alcohol polyoxyethylene ether AEO-9, 2 parts citric acid, and the balance being deionized water.
[0038] This embodiment was prepared according to the method of Example 1. Since the total amount of N,N-dimethyldecanoamide and diethylene glycol butyl ether added in this embodiment is relatively high, in actual preparation, the stirring time can be appropriately extended after adding both to ensure uniformity of the mixed solvent phase. After preparation, the resulting composition is a homogeneous and transparent liquid, with the pH adjusted to 6.0-7.5.
[0039] Example 5
[0040] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 10 parts polyester solvent, 18 parts N,N-dimethyldecylamide, 12 parts diethylene glycol butyl ether, 12 parts sodium fatty alcohol polyoxyethylene ether sulfate, 8 parts fatty alcohol polyoxyethylene ether AEO-9, 1 part citric acid, and the balance being deionized water.
[0041] This embodiment was prepared according to the method of Example 1. Compared with Example 1, the amount of polyester solvent added was increased in this embodiment to investigate the effect of the change in the amount of polyester solvent added on the removal effect of lipstick stains and the hand feel of the fabric after treatment. After preparation, the resulting composition was a homogeneous and transparent liquid, and the pH was adjusted to 6.0-7.5.
[0042] Example 6
[0043] This embodiment provides a composition for cleaning lipstick stains on fabrics, comprising, by weight: 5 parts polyester solvent, 18 parts N,N-dimethyldecylamide, 12 parts diethylene glycol butyl ether, 12 parts sodium fatty alcohol polyoxyethylene ether sulfate, 8 parts fatty alcohol polyoxyethylene ether AEO-9, 1 part citric acid, 0.2 parts preservative, 0.1 parts fragrance, and the balance being deionized water.
[0044] This embodiment was prepared according to the method of Example 1. After adding the remaining deionized water to make up to 100 parts, preservatives and fragrances were added, and stirring was continued until the system was uniform and transparent. The pH of the resulting composition was adjusted to 6.0-7.5.
[0045] Comparative Example 1 This comparative example provides a lipstick stain removal composition with the same formulation as Example 1, except that no polyester solvent is added and the volume is brought up to 100 parts with deionized water. The remaining preparation process is the same as in Example 1.
[0046] Comparative Example 2 This comparative example provides a lipstick stain removal composition with the same formulation as Example 1, except that N,N-dimethyldecanoamide is not added, and the mixture is made up to 100 parts with deionized water. The rest of the preparation process is the same as in Example 1.
[0047] Comparative Example 3 A commercially available lipstick stain remover pen was selected as Comparative Example 3, and a lipstick stain cleaning test was conducted under the same treatment conditions as in Example 1.
[0048] To evaluate the lipstick stain removal effect, fabric softness after treatment, and ring-shaped staining of the compositions of the present invention, the following tests were conducted on Examples 1-6 and Comparative Examples 1-3.
[0049] Lipstick stain removal performance test: Take a standard white cotton cloth, evenly apply commercially available red lipstick to the surface of the cloth, and leave it at room temperature for 2 hours to allow the lipstick stain to fully harden. Apply the composition obtained in the examples or comparative examples to the stained area, ensuring the composition fully wets the stain. After standing for 1 minute, absorb excess liquid with a paper towel. Measure the whiteness difference ΔE before and after treatment using a colorimeter. The larger the ΔE value, the better the lipstick stain removal effect.
[0050] Fabric damage test: The bending length of the cotton white cloth treated with lipstick stains was tested, and the bending length C value was recorded; the smaller the C value, the better the softness of the fabric. At the same time, the morphology of the treated fabric fiber surface was observed to determine whether there was obvious fiber damage or fading.
[0051] Circular stain test: Allow the treated fabric to air dry at room temperature and visually observe whether a ring of color or a ring-shaped stain forms around the treated area.
[0052] The test results are shown in Table 1.
[0053] ΔE (Removes lipstick stains) 32.5 28.1 33.2 31.8 33.9 30.4 18.7 22.3 24.6 Bending length C / cm 3.22 3.18 3.25 3.20 3.30 3.21 3.45 3.38 3.52 Do ring-shaped marks appear? none none none slight none none There are slight marks There are obvious marks No obvious traces Table 1 As shown in Table 1, compared with Comparative Example 1, the addition of polyester solvent in Example 1 increased ΔE from 18.7 to 32.5, indicating that the addition of polyester solvent helps to improve the cleaning effect of the composition on lipstick stains. Compared with Comparative Example 2, the addition of N,N-dimethyldecanoamide in Example 1 increased ΔE from 22.3 to 32.5, indicating that N,N-dimethyldecanoamide has a positive effect on the treatment of oily, waxy and ester residues in lipstick stains.
[0054] In Example 3, after appropriately increasing the amounts of sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9, ΔE reached 33.2, indicating that based on the solvent system of the present invention, the surfactant system can promote further emulsification and dispersion of the dissolved or peeled lipstick stains.
[0055] In Example 5, after the amount of polyester solvent added was increased to 10 parts, ΔE reached 33.9, but the bending length C of the fabric increased slightly compared to Example 1, indicating that the amount of polyester solvent added is not necessarily better the higher it is. Within the formulation range of the present invention, an appropriate amount of polyester solvent can balance the lipstick stain removal effect and the hand feel of the fabric after treatment.
[0056] In Example 4, the addition of N,N-dimethyldecylamide and diethylene glycol butyl ether was at a relatively high level. Although it had a good detergency effect, slight ring-shaped marks appeared on the fabric after drying, indicating that the total amount of solvent should be controlled within a reasonable range.
[0057] Compared with the commercially available lipstick stain remover pen of Comparative Example 3, the compositions of Examples 1-6 of the present invention have higher ΔE values and smaller bending length C values, indicating that the compositions of the present invention can better maintain the softness of fabrics while removing lipstick stains. No obvious ring-shaped marks appeared on the fabrics treated in Examples 1-3, 5, and 6, making them suitable for the rapid treatment of localized lipstick stains on fabrics.
[0058] In practical use, the composition of this invention can be applied to the lipstick stain on the fabric by dripping, spraying, applying with a cotton swab, applying with a sponge, or other localized application methods, allowing the composition to fully saturate the stain. After standing for 0.5-2 minutes, use a paper towel, non-woven fabric, or absorbent material to absorb any excess composition from the stain, and then allow the fabric to air dry naturally. Preferably, the standing time is 1 minute.
[0059] The composition of this invention is particularly suitable for the localized removal of lipstick stains on cotton, linen, silk, wool, polyester, and their blended fabrics. For stains that have been present for a long time or have a large amount of residue, the localized treatment can be repeated once or multiple times to further improve the stain removal effect.
[0060] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A composition for cleaning lipstick stains on fabrics, characterized in that, By weight, it includes the following components: 3-10 parts of polyester solvent; 12-25 parts of N,N-dimethyldecanoamide; 8-20 parts of diethylene glycol butyl ether; 8-18 parts of sodium fatty alcohol polyoxyethylene ether sulfate; Fatty alcohol polyoxyethylene ether AEO-9 5-15 parts; Citric acid 0.5-2 parts; Add deionized water to bring the total to 100 parts; The pH of the composition is 6.0-7.5; The polyester solvent has the structure shown in formula (I): （I） In the formula, n is an integer from 11 to 17, and p is an integer from 2 to 6.
2. The composition for cleaning lipstick stains on fabrics according to claim 1, characterized in that, By weight, the polyester solvent is 4-6 parts, the N,N-dimethyldecylamide is 15-20 parts, the diethylene glycol butyl ether is 10-14 parts, the sodium fatty alcohol polyoxyethylene ether sulfate is 10-14 parts, the fatty alcohol polyoxyethylene ether AEO-9 is 6-10 parts, and the citric acid is 0.8-1.2 parts.
3. The composition for cleaning lipstick stains on fabrics according to claim 1 or 2, characterized in that, The product is characterized by having a mass ratio of sodium fatty alcohol polyoxyethylene ether sulfate to fatty alcohol polyoxyethylene ether AEO-9 of 1:(0.4-1.2) based on parts by weight.
4. The composition for cleaning lipstick stains on fabrics according to claim 1 or 2, characterized in that, The mass ratio of N,N-dimethyldecanoamide to diethylene glycol butyl ether is 1:(0.4-1.2).
5. The composition for cleaning lipstick stains on fabrics according to claim 1, characterized in that, It also includes 0.1-0.5 parts of preservatives and 0.1-0.3 parts of fragrance.
6. A method for preparing a composition for cleaning lipstick stains on fabrics, comprising the method for preparing the composition for cleaning lipstick stains on fabrics as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Add some deionized water to the reactor, heat to 40-45℃, and stir; S2. Add N,N-dimethyldecylamide and diethylene glycol butyl ether, and stir until completely miscible to obtain a mixed solvent phase; S3. Add sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 to the mixed solvent phase, and stir until completely dissolved to obtain a mixed solution. S4. The polyester solvent is pre-dispersed with a portion of deionized water and then added to the mixture, and stirring is continued. S5. Add citric acid to adjust the pH to 6.0-7.5; S6. Add the remaining deionized water to make up to 100 parts, stir until a homogeneous and transparent liquid is obtained, and the composition is obtained.
7. The preparation method according to claim 6, characterized in that, In step S1, add 30-40 parts of deionized water.
8. The preparation method according to claim 6, characterized in that, In step S3, sodium fatty alcohol polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether AEO-9 are added to the mixed solvent phase at a stirring speed of 200-300 rpm.
9. The preparation method according to claim 6, characterized in that, In step S4, after adding the polyester solvent, continue stirring for 15-20 minutes.
10. The preparation method according to claim 6, characterized in that, After step S6, add preservatives and flavorings, and stir well.