CN101602985B - Stain removal compositions and methods of use thereof - Google Patents

Abstract

The invention relates to a composition for removing stains and a using method thereof, namely a cleaning composition and a using method thereof, wherein the composition comprises an organic mixed solvent, at least one polymer, micro or nano powder and at least one surfactant.

Description

Stain removal compositions and methods of use thereof

technical field

The present invention relates to a composition for removing surface stains and a method for using the same, and more particularly, the present invention relates to a water-saving method for removing surface stains. the

Background technique

In household life, cleaning and cleaning procedures are procedures that must be performed every day. Generally, kitchen utensils and bathroom equipment are cleaned by pouring detergent into water, supplemented by foam or scrubbing tools. After scrubbing, the remaining cleaning solution can only be discharged as waste water, and scrubbing tools often damage appliances. surface, or have limited cleaning effectiveness. In addition, in daily life, substrates such as glass, stainless steel, plastic, and cement often have grease, water stains, and residual glue that are difficult to clean. For example: stainless steel is often used in kitchens and bathrooms, but over time, waterspots often appear on the surface of stainless steel, which cannot be washed off with detergent. For example, cleaning products such as pickle cloth can remove the scale on the surface of stainless steel. But it may also cause surface scars. The mirror surface has been used for a long time, and there is a similar situation. In addition to dirt on the surface of stainless steel and mirrors, there will also be water stains (stains). The removal of water stains is different from scale. Stains are only attached to the surface, while water stains have invaded the interior of the surface, so there is no way Treat with normal cleaners. In addition, after the sticker is torn off, there is often residual glue still adhering to the surface of the substrate, which is also difficult to remove with general cleaning agents. the

At present, the existing cleaning products have limited cleaning effect and need to use a lot of water to rinse off the dirt. In some cleaning situations, if tap water is used for cleaning, a large amount of water resources will be wasted, such as cleaning the exterior of buildings, cleaning the exterior of passenger rapid transit trains, etc. In view of this, the present invention attempts to use no/almost no solvent cleaning materials, so as to reduce the use of water/solvent during cleaning, and at the same time have the functions of brushing and surfactant cleaning, so as to meet the needs of environmental protection and reduce environmental pollution. burden. the

Contents of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a composition and method for removing surface stains, which can greatly reduce the waste of water resources, and can achieve the effect of removing stains for various types of stains on the surface of various materials. the

For reaching above-mentioned object, the composition for removing surface stain of the present invention, it is to comprise:

20 to 50% by weight of an organic mixed solvent, the mixed solvent at least includes a highly volatile C1-C4 alcohol and a low volatile organic solvent;

0.5 to 20 weight percent of at least one polymer, wherein the polymer is soluble in the high volatility alcohols, and can form soft solids with the low volatility organic solvent;

20 to 60 percent by weight of a powder having a particle size of at least 100 microns; and

1 to 10 weight percent of at least one surfactant. the

Wherein the surfactant can be two or more surfactants; at least one of which is a nonionic surfactant, and at least one of which is an anionic surfactant. the

The present invention simultaneously provides a method for removing surface stains, the steps comprising:

(a) contacting the aforementioned composition with the surface to be stained for an appropriate time to swell and soften the stain on the surface;

(b) abrading said composition with said surface to scrape off surface dirt; and

(c) After the composition coats the stain and further forms a solid crumb, it can be removed from the surface. the

Since the composition of the present invention is used to remove surface stains, the present invention also includes a use of the aforementioned composition for removing surface stains. the

The present invention utilizes the solvent and surfactant in the composition components to remove the dirt on the surface of the substrate, and the dirt is covered and separated from the surface of the substrate through the mutual adhesion (jointness) of the polymers to achieve the effect of cleaning. No need to use water to remove stains from the surface, thus saving water resources. the

Description of drawings

Figure 1 is a schematic flow chart of removing surface stains using the composition of the present invention. the

Figure 2A is a surface image of a device with residual glue. the

Fig. 2B is an image of the surface of the device treated with the composition of the present invention without residual glue. the

Figure 3A is an image of a stainless steel vessel with stainless steel scale. the

Figure 3B is an image of the surface of a stainless steel vessel treated with the composition of the present invention. the

FIG. 4A is an image of an exterior of a vehicle with oil stains. the

Figure 4B is an image of the surface of a vehicle treated with the composition of the present invention. the

Detailed ways

The composition for removing surface stains of the present invention comprises: 20 to 50% by weight of an organic mixed solvent, which at least includes a highly volatile C1-C4 alcohol and a low volatile organic solvent; 0.5 to 20 % by weight of at least one polymer, wherein the polymer is soluble in the highly volatile alcohols and can form a soft solid with the low volatile organic solvent; 20 to 60% by weight of powder, The particle size of the powder is at least less than 100 microns; and at least one surfactant is included in 1 to 10 weight percent. the

The organic mixed solvent contained in the composition of the present invention is obtained by mixing two or more organic solvents, at least one of which is a highly volatile alcohol with a carbon number between C1 and C4, and this alcohol can be dissolved and combined Another component of the composition - the polymer, and the other solvent is a low volatility organic solvent compared to the high volatility alcohols, which is easy to blend with the other component of the composition - the polymer . Preferably, the low-volatility organic solvent suitable for the present invention is stain remover oil, dry cleaning oil, silicone oil, turpentine or a mixture thereof, and the C1-C4 alcohol is ethanol. the

The function of the powder contained in the composition of the present invention is to provide the effect of grinding and scraping. When the composition is in contact with surface stains, the stains can be taken away from the surface through physical contact, controlled by the content of the powder. At the same time, the solid content of the composition can also be adjusted, thereby controlling the appearance of the composition. The particle size of the powder suitable for the present invention is recommended to be below 100 microns, because when the particle size is too large, it is easy to cause surface damage during grinding. In a preferred aspect, some powders may have a nanometer size, for example, powders with a particle size smaller than 20 nanometers. The powder materials suitable for the present invention are not limited in practice, but considering the requirements on hardness, kaolin, alumina powder and corundum are the best, and it is also possible to mix different powders to target various types of stains. Optimization of cost and effectiveness of compositions.

The composition of the present invention comprises at least one polymer, which is soluble in the high volatility solvent and has good blending and processing characteristics with another low volatility solvent, suitable for the polymerization of the present invention The materials include polyethyl acetate, polypropylene, polybutene, polyvinyl alcohol, polystyrene, polyvinyl benzene chloride, polymethyl methacrylate or their copolymers, among which polyethyl acetate is used in terms of unit price and characteristics It is most in line with the needs of the present invention. the

In the composition of the present invention, surfactant is included, and the function of surfactant is to provide the effect of removing stains and emulsification. The surfactant more suitable for the present invention is nonionic surfactant or anionic surfactant or Its mixture, for example, the nonionic surface active agent can be polyethylene glycol hydrocarbon base oleate or polyethylene glycol hydrocarbon base stearate or polyglycol hydrocarbon base alkyl ether or its mixture, and anionic surfactant The agent may be hydroxylated alkyl ethoxylates, hydroxylated dodecylbenzene sulfates, polyglycol alkyl ether phosphates, and polyethylene glycol alkyl ether sulfates. the

Since the composition of the present invention is used for the removal of surface stains, according to different types of stains, such as stainless steel stains, residual glue or oily stains, it can be combined without changing the characteristics of forming solid crumbs after use. Add 10 to 30 weight percent functional additives to the composition to enhance the effect of the composition on this type of stain removal. For example, for stainless steel stains, you can add oxalic acid or acetic acid to the composition to remove them, and for oily stains, you can add Weak base (such as ammonium hydroxide) or commercially available greasy detergent, etc., further, based on commercial considerations, the composition of the present invention may also contain 0.1 to 1 weight percent of spices to satisfy consumers' sense of smell. the

The composition of the present invention is prepared by uniformly mixing the components according to their specific gravity, which can be achieved without limitation by using various instruments for polymer processing known in the art, and the resulting combination after mixing Depending on the composition of the finished product, there will be differences in appearance, but it is generally in the form of emulsion to paste. the

The method of using the composition of the present invention to remove surface stains, the steps can refer to Figure 1, and is described in detail as follows: (a) first contact the composition of the present invention with the surface to be stained for an appropriate time, when the surface stains are residual glue or oily substances, the stains will swell and soften due to the surfactant in the composition. If functional additives such as rust-removing acid are included in some implementations, they can react with stainless steel scale and improve the subsequent grinding steps. effect; then proceed to step (b) to grind the composition and the surface, thereby scraping off surface dirt, this step can be used in conjunction with various known cleaning devices to improve the grinding effect, simple devices such as Paper towels, cleaning cloths, pickle cloths, sponges, leather, wool felt, abrasive paper or metal sheets, etc. In addition, for example, rotary grinders, horizontal vibration grinders and ultrasonic vibration grinders commonly used in car beauty waxing can also be used used in this step. While in the process of grinding, the stains will be taken away from the surface, it can be understood that these stains will be coated by the composition of the present invention, so after the grinding step is completed, step (c) is to wait for the composition to coat the stains After the solid crumbs are further formed, these solid crumbs are removed from the surface. This step is performed because when the highly volatile solvent in the composition escapes, the original composition will lose its appearance due to the reduction of the solvent composition. The form will turn into solid crumbs over time, and can be easily blown from the surface, thereby achieving the surface cleaning effect. the

The following embodiments are used to further understand the advantages of the present invention, and are not intended to limit the application scope of the present invention. the

Example: Compositions and their effects

According to the different types of stains tested, this example shows the compositions of different compositions as follows:

Residual Glue Removal Formula

ingredients weight percentage Polymer: Polyethyl acetate 10wt% Anionic surfactant: polyethylene glycol hydrocarbyl alkyl ether phosphate 10wt% Solvent: alcohol and turpentine (ratio 1:1) 50wt% Powder: (1) Kaolin 18wt% (2) Alumina powder 6wt% (1 micron) (3) Silica powder 6wt% (7 nanometers) Total 30wt%

The composition for removing residual glue can be prepared by taking and mixing the components according to the above proportions. the

Stainless Steel Stain Removal Recipe

ingredients weight percentage Polymer: Polyethyl acetate 1wt% Anionic surfactant: polyethylene glycol hydrocarbyl alkyl ether phosphate 10wt% Solvent: alcohol and turpentine (ratio 1:4) 20wt% Powder: (1) Kaolin 5wt% (2) Alumina powder 5wt% (1 micron) (3) Silica powder 1wt% (7 nanometers) (4) Carborundum 39wt% (10 microns) Total 50wt% Functional additives: oxalic acid and acetic acid (ratio 1:1) 19wt%

Among them, the anionic surfactant polyethylene glycol alkyl ether phosphate can be partially or completely replaced by the nonionic surfactant polyethylene glycol alkyl ether, and the ingredients are taken according to the above ratio and mixed to obtain Compositions for removing stainless steel stains were prepared. the

Oily Stain Removal Formula

ingredients weight percentage Polymer: Polyethyl acetate 3wt% Non-ionic surfactant: Polyethylene glycol hydrocarbyl alkyl ether 7wt% Solvent: alcohol and turpentine (ratio 1:3) 40wt% Powder: (1) Kaolin 18wt% (2) Alumina powder 24wt% (1 micron) (3) Silica powder 8wt% (7 nanometers) Total 50wt%

Among them, the non-ionic surfactant polyethylene glycol alkyl ether can be partially or completely replaced by the anionic surfactant polyethylene glycol alkyl ether phosphate, and the ingredients are taken according to the above ratio and mixed. A composition for removing oily stains is prepared. the

Test Results

FIG. 2A is an image of a surface with adhesive residue. After grinding and cleaning with the above-mentioned composition for removing adhesive residue, a surface completely free of adhesive residue can be obtained as shown in FIG. 2B . the

FIG. 3A is an image of a stainless steel vessel with stainless steel scale. After grinding and cleaning with the above-mentioned composition for removing stainless steel scale, a bright surface as shown in FIG. 3B can be obtained. the

Figure 4A is an image of the appearance of a vehicle with oily stains. After grinding and cleaning with the above-mentioned composition for removing oily stains, a surface without oily reflections as shown in Figure 4B can be obtained. the

To sum up the above, the composition of the present invention is used for grinding and scraping surface stains, and through the release of surfactants and the contact force of micron/nano powders, it also produces a brushing function, because it greatly reduces the use of washing water, so Save the waste of water resources, and further avoid environmental pollution caused by excess cleaning agents. the

Other forms of implementation

All the features disclosed in this specification may be combined with other methods, and each feature disclosed in this specification may be selectively replaced by features of the same, equivalent or similar purpose. Therefore, except for particularly prominent features All the features disclosed in this specification are only examples of equivalent or similar features. the

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art may make various changes and modifications without departing from the spirit and scope of the present invention. the

Claims (12)

1. A composition for removing surface stains, the composition comprising: 20 to 50% by weight of an organic mixed solvent, the mixed solvent at least includes a highly volatile C1～C4 alcohol, and a low volatile organic solvent; the low volatile organic solvent is: compared with the carbon number in Highly volatile alcohols between C1 and C4, and organic solvents with low volatility; 0.5 to 20 weight percent of at least one polymer, wherein the polymer is soluble in the high volatility alcohols and can form soft solids with the low volatility organic solvent; wherein the polymer comprises Polyvinyl acetate, polypropylene, polybutylene, polyvinyl alcohol, polystyrene, polyvinyl phenyl chloride or polymethyl methacrylate; 20 to 60 weight percent of a powder having a particle size of at least less than 100 microns; and 1 to 10 weight percent of at least one surfactant; wherein the surfactant comprises nonionic surfactants, anionic surfactants or mixtures thereof. 2. The composition of claim 1, wherein the C1-C4 alcohol is ethanol. 3. The composition of claim 1, wherein the low volatility organic solvent is dry cleaning oil, silicone oil, turpentine or a mixture thereof. 4. The composition of claim 1, wherein the powder comprises kaolin, alumina powder, corundum or a mixture thereof. 5. The composition of claim 1, wherein at least some of the powders have a particle size less than 20 nanometers. 6. The composition of claim 1, wherein the nonionic surfactant comprises polyethylene glycol hydrocarbyl stearate and polyethylene glycol hydrocarbyl alkyl ether. 7. The composition of claim 1, wherein the anionic surfactant comprises hydroxylated alkyl ethoxylates, hydroxylated dodecylbenzene sulfates, polyethylene glycol hydrocarbyl alkyl ether sulfates and Polyethylene glycol alkyl ether phosphate. 8. The composition of claim 1, further comprising 10 to 30 weight percent of functional additives. the 9. The composition of claim 8, wherein the functional additive is oxalic acid, acetic acid, ammonium hydroxide or greasy detergent. 10. The composition of claim 1, further comprising 0.1 to 1 weight percent of fragrance. 11. A method for removing surface stains, the steps comprising: (a) taking the composition of claim 1 and contacting the surface to remove stains for an appropriate time, so that the stains on the surface are swollen and softened; (b) abrading said composition with said surface to scrape off surface dirt; and (c) After the composition coats the stain and further forms a solid crumb, it can be removed from the surface. 12. A use of the composition of claim 1 for surface stain removal. the

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