How to clean ink spills on clothes?

How to remove pigment stains? There are various types of pigment stains, and once they settle on clothing, they are difficult to remove. Different methods need to be used depending on the color and nature of the stain. 1. Removal of dye stains: If dye gets on clothing, it can be wiped off first with dilute acetic acid, followed by rinsing with hydrogen peroxide. It can also be brushed with turpentine and then wiped with gasoline. Finally, rinse thoroughly with clean water. 2. Removal of red ink stains: For newly formed red ink stains, wash them with water first, then soak them in warm soapy water. Once the stain has been removed, rinse thoroughly with clean water. For red ink stains that have been there for a long time, wash them with water first, and then wipe them away using a 10% alcohol solution. 3. Removal of blue ink stains: Newly formed blue ink stains can be removed by rubbing them with detergents such as soap or laundry detergent. For blue ink stains that have been there for a long time, they can be soaked in an oxalic acid solution and rubbed, after which they can be cleaned away using detergent. 4. Removing stains from merthiolate: If clothing is stained with merthiolate, first wash it with a warm detergent solution. Then soak it successively in oxalic acid and potassium permanganate solutions, scrub it, and finally use an oxalic acid solution to remove the stain before washing it again – the merthiolate stain will be removed in this way. 5. Removal of gentian violet stains: The main component in gentian violet is extracted from gentiana, which is why it is also known as gentian purple. It is a commonly used topical medication; when it gets on clothing, it leaves a blue-violet stain that is quite noticeable. The removal method is: soak the clothing in water, wring it out slightly, then use a cotton swab dipped in a 20% oxalic acid solution to apply it to the stain from the inside out. After soaking for a short while, it can be rinsed repeatedly with clean water and rubbed, and the stains will be removed. Additionally, for some white fabrics stained with gentian violet, the excess color can first be removed using alcoholic solvents, after which they can be bleached with oxidizing agents such as sodium hypochlorite or hydrogen peroxide solutions; washing them afterward will yield the desired result. 6. Removing yellow stain: It is quite difficult to remove yellow stains from light-colored, especially white, clothes. First, apply acetic acid to the stained area; if that doesn’t work, wash it in alcohol. If it still cannot be completely removed, an appropriate oxidizing agent must be selected based on the properties of the fabric fibers in order to remove the stain or bleach it. 7. Removal of iodine stains: If clothing is stained with iodine, alcohol or potassium iodide can be used to remove it. Add 5 to 7 grams of potassium iodide to 100 milliliters of water; clothes that have been stained removed with this potassium iodide solution must be rinsed thoroughly with clean water. The iodine-stained clothes can also be soaked in hot water or a hot solution of sodium thiosulfate at a concentration of 15%~20% for 2 hours, allowing the stains to dissolve completely and come off the clothes. You can also apply a water and starch paste to the stained area; once the stain turns black, wash it with detergent and rinse it thoroughly. 8. Removal of paste residue: First, scrub with solvent gasoline or alcohol, then scrub with carbon tetrachloride or benzene, and finally clean thoroughly with a high-quality detergent. It can also be brushed with a potassium trichloride brush first, then washed with detergent, and finally rinsed thoroughly with clean water. You can also sprinkle the heated edible alkali on the stained area, add some warm water and rub it, which will help remove the stain. 9. New stains from alcohol or beer can be removed by washing with clean water. For stains that have been there for a long time, they can first be washed with water, and then removed by rubbing them with a mixture of 2% ammonia and boric acid solution. Clothes that have had stains removed must be rinsed thoroughly with clean water. 10. Removing rust stains: Rust stains on clothes can be removed by soaking them in a 1% warm oxalic acid solution, followed by rinsing with clean water. The stain can also be wiped with a 15% aqueous acetic acid solution, or the contaminated area can be soaked in this solution and then rinsed thoroughly with clean water the next day. The stained area can also be moistened with a 10% citric acid solution or a 10% oxalic acid solution, then immersed in concentrated salt water; it should be washed clean with water the following day. If white cotton or cotton-blend fabric is stained with rust, place a grain of oxalic acid on the stain, moisten it with warm water, gently rub it, and then rinse it clean with water. During operation, to prevent oxalic acid from corroding the fabric, the movements must be quick. Fresh lemon juice can also be applied to the rust spots, rubbed with your hands several times until the rust is removed; afterwards, wash with a cleaning solution and rinse thoroughly with clean water. 11. Removal of patina Rust is toxic; careful handling is required if clothing is contaminated. It can be treated by soaking it in a 20%~30% potassium iodide aqueous solution or a 10% acetic acid aqueous solution, then immediately wiped with warm saltwater, and finally rinsed with clean water. 12. Removal of silver nitrate stains. Silver nitrate is widely used in pharmaceuticals and photographic materials. When this substance comes into contact with skin or fabric, it leaves black spot stains. The removal method is as follows: Use 2 parts each of ammonium chloride and mercury chloride, and prepare a mixed solution in 15 parts of water. Dip a cotton ball in this mixture and wipe the stained area; the stain will be removed. Clothes stained with silver nitrate can also be immersed in a slightly warm aqueous solution of 10% sodium thiosulfate, washed with detergent, and then rinsed thoroughly with clean water. 13. Removal of potassium permanganate residue: Potassium permanganate, commonly known as potash permanganate, is often used to disinfect surgical instruments and fruits. If clothing is stained with potassium permanganate, you can soak a vitamin C tablet in water, apply it to the stain and gently rub it; by soaking the tablet in water while rubbing, the stain can be removed in no time. If your hands are stained with potassium permanganate, this method can also be used to remove it. It can also be soaked in citric acid or an aqueous solution of 2% oxalic acid; through a chemical reaction, the stains can be removed. This method is suitable for removing stains from clothes of various materials and colors. 14. Removing soy sauce stains: If clothes are stained with soy sauce, rub them with cold water first, then wash them with detergent. For clothes that have been contaminated with soy sauce for an extended period, an appropriate amount of ammonia should be added to the washing solution (1 part ammonia per 4 parts of washing solution) when washing them. Silk and woolen fabrics can be washed with a 10% citric acid aqueous solution. Finally, rinse thoroughly with clean water. 15. Removing yellow mud stains: If clothing is stained with yellow mud, wait until the stain has dried, then rub off the loose dirt with your hands or a brush. Apply ginger to the stained area, and finally rinse it with clean water to remove the yellow mud stain. 16. Removing urine stains: New urine stains on baby diapers can be washed away with clean water. Dry old urine stains need to be cleaned with detergent. If there are stains on natural fiber silk fabrics, they can be washed with a mixture of ammonia and acetic acid in a 1:1 ratio, followed by rinsing with clean water. 17. Sweat stains on clothing can be cleaned using a 25% ammonia solution. You can also soak the clothes in saltwater at a concentration of 3% for a few minutes, rinse them with clean water, and then wash them with detergent. Sweat stains on silk, wool, and their blended fabrics can be removed with citric acid. Finally, rinse with clean water. When removing sweat stains and mildew, for new stains, the surface mold can first be brushed away with a soft brush, followed by cleaning it with alcohol. When removing old stains, you can first apply a dilute alkaline solution or dilute ammonia to the stain, and then scrub it shortly thereafter. Sweat stains and mildew spots on silk, wool, and their blended fabrics can be removed using solutions such as citric acid and alcohol. 18. Removing chocolate stains and tea stains: 1. For chocolate and tea stains on clothing, use a dilute ammonia solution prepared by mixing 1 part ammonia of 10% concentration with 10 parts water; dip a cotton ball in this solution and wipe the stains until they are gone. If residues remain after washing and the surface is not clean, it should be wiped with a 3% hydrogen peroxide solution, followed by rinsing with clean water until it is completely clean. 2. If there are dark chocolate stains and tea stains on light-colored silk fabrics, use a cotton ball dipped in warm (35 degrees Celsius) glycerin to wipe until they are removed ； It can also be soaked in gasoline to remove all the grease from the stains, after which it should be wiped with an ammonia solution of 10% concentration; the ratio of ammonia to water should be 1:5. When chocolate stains and tea stains on silk fabrics are difficult to remove, an ammonium glycerin solution can be used instead; this is prepared by mixing 1 part ammonia (10%), 20 parts glycerin, and 20 parts water, and the fabric should be wiped with a cotton ball dipped in this solution. 3. If clothing is stained with tea, and the stain has just appeared, you can use 70–80. Remove with hot water and rubbing using C. If it is an old stain, it needs to be soaked in concentrated salt water. You can also use a cloth or cotton ball dipped in mild ammonia to wipe the tea stains, or scrub them away using a mixture of ammonia and glycerin in a 1:10 ratio. If the clothing contaminated with tea stains is made of wool, it should be rubbed with a 10% glycerin solution, then washed with detergent, and finally rinsed thoroughly with clean water. 19. Removing black spots from white undershirts: If white undershirts are not washed properly, black spots that are difficult to remove may remain, which looks unsightly on the bright white fabric. These spots can be removed using the following method: Take 100 grams of clean ginger, crush it, place it in a bowl along with 500 grams of water, and bring to a boil for 10 minutes. Then put the undershirt in the bowl and soak it for 15 minutes; after that, rub the area repeatedly until the black spots disappear. Finally, rinse the undershirt thoroughly with clean water. 20. Cleaning fruit juice and red wine stains: There are several methods for removing fruit juice and red wine stains from clothing, which can be chosen depending on the situation. 1. When fruit juice or red wine spills on white clothes, soak them in milk first, then wash them normally with detergent. 2. For fresh fruit juice or red wine that has just splashed on clothing, it should be removed immediately, salt should be sprinkled on it, followed by washing with clean water, and then cleaning with laundry detergent or soap. 3. For brightly colored fruit juices or red wine, a mixture of 1 egg yolk and 50 grams of glycerin can be applied to the stains; after half a day, wash them with warm water at 25-30 degrees Celsius. For clothes that have yellowed over a large area, they can be soaked in the water used for washing rice; change this water every day. After about 3 days, the yellow stains will disappear, and finally, the clothes can be rinsed clean with plain water. Note: Do not soak in colored rice washing water to prevent coloring. Yellowed silk garments can also be rinsed with lemon juice or dilute citric acid to remove the yellow stains, and should be rinsed thoroughly with clean water afterward. The ultimate solution for clothing stains – a great helper for washers! ! There are several ways to remove carbon ink from clothing: 1. First, use an appropriate amount of glutinous rice or white rice; apply this rice to the stained area of the fabric and rub it gently over and over again, applying even pressure, so that the sticky starch in the rice can pull out the carbon black that has penetrated the fabric fibers. After this treatment, wash the clothing with detergent. Finally, rinse thoroughly with clean water. 2. Soak in 84 disinfectant, but be cautious with dark-colored clothes as it may cause fading. 3. Go to the high school chemistry department and ask the teachers for some oxalic acid solution; it works very well

[Edit this paragraph] Components of ink Ink emerged with the development of writing instruments, such as the pen. Based on the chemical properties of its ingredients, it can be divided into blue-black ink and colored ink. 　　(1) Blue-black ink, also known as ferric tannate ink, is composed of components that ensure long-lasting darkness without fading, pigments, stabilizers, resistants, wetting agents, and preservatives. 　　1. Ingredients that ensure long-lasting darkening effect: These are mainly tannic acid (C4H10O9), gallic acid (C7H6O5·H2O), and ferrous sulfate (FeSO4); these components combine with each other to form ferrous tannate and ferrous gallate. Upon oxidation, they turn into insoluble iron compounds, namely ferric tannate and ferric gallate. The former enhances water resistance, while the latter improves the darkening effect, thereby ensuring that the ink remains water-resistant, dark in color, and its hue does not fade over time. 　　2. Pigment components: Currently, acidic ink blue and direct lake blue dyes are commonly used. Black ink blue is the main color in inks; its aqueous solution does not deteriorate when exposed to acids, but turns brown when exposed to bases. True lake blue acts as a color enhancer in ink; due to its high content of impurities, it should not be used in large quantities, and it tends to mold in humid environments. 　　3. Stabilizer: The purpose of adding a stabilizer to ink is mainly to prevent the ink from settling, thus avoiding interruptions in writing. Common stabilizers include sulfuric acid (HSO4), oxalic acid (COOH)2, and formalin (HCHO) solution. These stabilizers all possess a certain degree of acidity, which poses a potential risk of acidifying the paper; therefore, they should not be used in large quantities. 　　4. Resist: Since the stabilizers added to the ink are highly acidic, a resist is often used to prevent corrosion; it forms a film with the iron surface, reducing the corrosive effect of sulfuric acid by 90%. It prevents the iron content in the ink from increasing due to corrosion of the pen tip, thereby enhancing the stability of the ink. 　　5. Wetting agent: To prevent the water in the ink from evaporating, which would make writing difficult, glycerol [C3H5(OH)3] – a substance that is not volatile and has water-absorbing properties – is added to the ink. This keeps the pen tip moist, facilitating writing. 　　6. Preservatives: II. Pure blue ink A dark blue aqueous solution that is stable in the presence of acids, but deteriorates when exposed to alkalis. It belongs to organic dye ink; although it has bright colors, the durability of the printed text is inferior to that of blue-black ink, and the text tends to fade easily. The color of the font after writing is a bright pure blue. It is suitable for fountain pens and ink pens, and ideal for general writing, especially for notes and assignments by young students; it is not appropriate for writing official documents. 　　Main components: 1. Dyes: such as acid ink blue, which provides the main color, and acid scarlet, which is used for color adjustment. 　　2. Stabilizers, such as sulfuric acid. 　　3. Preservatives, such as phenol and arsenic anhydride. 　　4. Wetting agents, such as glycerin, ethylene glycol, etc. 　　5. Solvent, mainly treated water. 　　Substances such as organic compounds contained in ink ingredients tend to rot and mold in humid environments; to prevent this, preservatives like phenol or sodium pentachlorophenate are often added. 　　Why does the addition of blue-black ink to lime water result in reddish-brown insoluble solids? 　　This is because blue-black ink contains divalent and trivalent iron ions, and when these iron ions come into contact with hydroxide ions in lime water, iron hydroxide precipitate is formed; the color of this iron hydroxide precipitate is reddish-brown. This post was last edited by 9067jxhuas on 2009-2-18 09:20.]

Here’s a green method: spread rice grains evenly over the stained clothes, and once the grains turn red, wash them. I used this method a lot when I was in elementary school, and it worked very well – unless the formula for ink in pens has changed nowadays. Note: Not suitable for ink of the ink or carbon type