과망간산칼륨, 즉 포타시움 퍼망거네이트(potasium permanganate)는 보라색 액체나 결정체 형태로 판매되는 산화 표백제이다. 과망간산칼륨은 망간산칼륨(potasium manganate) 용액과 이산화탄소의 반응으로 얻어진다. 많은 스팟터들이 직물과 염색에 대한 이 표백제의 위험한 작용 때문의 이의 사용을 꺼린다. 하지만 사실은 이 표백제가 소디움 하이포클로라이트, 타이타니움 설페이트 그리고 소디움 하이드로설파이트 보다 절대로 더 위험하지 않다. 다시 말해 올바른 지식만 갖추고 있고, 또 […]
Potassium Permanganate is an oxidizing bleach sold as a purple liquid or in crystal form. Potassium Permanganate is chemically obtained by the action of carbon dioxide on an aqueous solution of potassium manganate. Many spotters have been taught to stay away from this bleach because of its dangerous reactions on fabrics and dyes. The truth
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Digester Action Digestion is one of the four methods of stain removal. The other methods are solvent action, lubrication and chemical action. Digestion uses different enzymes to remove protein stains such as milk, eggs, perspiration and blood. Some enzymes remove starch, food, grease and oil. Enzymes associated with cleaning are proteins that act as catalysts
MD laundromat starts untact laundry service The dry cleaning market is yet another industry that has accelerated the adoption of contactless service methods as coronavirus cases continue to rise across Maryland. Amy’s Laundry, located at 271 E. Main St. in Westminster, is believed to be the first full-service laundromat to provide contactless pickup and delivery
Click on the picture to go to the original Bloomberg story For a glimpse of how a city is faring in its reopening, look closely at its dry cleaners. Take J’s Cleaners, with locations dotting Midtown and Upper Manhattan. Last month, business was up to as much as 40% of pre-pandemic levels as a small
One of the worst years in memory is finally coming to a close. The year 2020 was supposed to be the year of the white mouse signifying good fortune. Instead we got the black bat that completely ransacked the globe. At first we all hoped COVID will wane as the temperature rises but it proved
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