{"id":4548,"date":"2025-10-14T06:14:52","date_gmt":"2025-10-14T06:14:52","guid":{"rendered":"https:\/\/kingstarlaundry.com\/?p=4548"},"modified":"2025-10-14T06:14:52","modified_gmt":"2025-10-14T06:14:52","slug":"categorized-treatment-and-professional-solutions-for-garment-yellow-stains-in-laundry-shops","status":"publish","type":"post","link":"https:\/\/kingstarlaundry.com\/pt\/categorized-treatment-and-professional-solutions-for-garment-yellow-stains-in-laundry-shops\/","title":{"rendered":"Categorized Treatment and Professional Solutions for Garment Yellow Stains in Laundry Shops"},"content":{"rendered":"<p>Yellow stains are one of the stubborn stains that <a href=\"https:\/\/kingstarlaundry.com\/pt\/solution\/\"><strong><u><b>laundry shops<\/b><\/u><\/strong><\/a>\u00a0frequently encounter in daily tasks. When facing yellow stains of different origins and properties, relying only on a single method or blindly using bleach is ineffective and may cause damage.<\/p>\n<p>Identifying the type of yellow stain and using the correct treatment can improve stain removal. It can also help ensure the safety of clothes.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-4549 aligncenter\" src=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72471.png\" alt=\"stains\" width=\"677\" height=\"462\" srcset=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72471.png 677w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72471-300x205.png 300w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72471-18x12.png 18w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72471-600x409.png 600w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/p>\n<h2><strong>Guide to Identifying Yellow Stain Type<\/strong><\/h2>\n<p>Common yellow stains can be primarily analyzed in terms of three dimensions: location, touch, and color.<\/p>\n<ul>\n<li><strong><b>Location<\/b><\/strong><\/li>\n<\/ul>\n<p>&#8211; Collar, cuffs, underarms<\/p>\n<p>They are mostly a mixture of sweat stains and sebum.<\/p>\n<p>&#8211; Front chest, placket area<\/p>\n<p>They are commonly oil stains or colored liquids (coffee and juice).<\/p>\n<p>&#8211; Uniform yellowing of the entire garment<\/p>\n<p>It is usually caused by oxidation during long-term storage.<\/p>\n<p>&#8211; Spotted or flaky stains<\/p>\n<p>These stains might be oil spots, or they could come from spilled drinks.<\/p>\n<p>&#8211; With mold spots or powdery substances<\/p>\n<p>It is a typical sign of mold stains, and is mostly caused by storage in humid environments.<\/p>\n<ul>\n<li><strong><b>Touch<\/b><\/strong><\/li>\n<\/ul>\n<p>&#8211; Stiffness<\/p>\n<p>It may result from the combined effect of stubborn sweat stains and oxidation.<\/p>\n<p>&#8211; Sticky feeling<\/p>\n<p>It is typically oil-based stains.<\/p>\n<p>&#8211; Removable powder when wiped<\/p>\n<p>One of the characteristics of mold stains.<\/p>\n<ul>\n<li><strong><b>Color<\/b><\/strong><\/li>\n<\/ul>\n<p>&#8211; Yellow with reddish-brown tint<\/p>\n<p>Common in oil pigments, protein oxidation stains (blood stains, milk stains), tannic acid oxidation stains, or rust stains.<\/p>\n<p>&#8211; Light yellow with lemon-green tint<\/p>\n<p>Mostly plant tannin pigments, such as grass stains, lemon stains, curry stains&#8230;<\/p>\n<h2><strong>Categorized Treatment and Stain Removal Process Recommendations<\/strong><\/h2>\n<p>Here is an important pre-treatment note. Regardless of the stain remover or method used, operators should always test it first on a hidden area of the garment to check for color fading or fabric damage.<\/p>\n<ul>\n<li><strong><b>Yellow stains with reddish-brown tint<\/b><\/strong><\/li>\n<\/ul>\n<p>&#8211; Oil pigment stains<\/p>\n<p>First perform oil removal treatment, then use chlorine bleach or oxygen bleach for oxidative bleaching.<\/p>\n<p>&#8211; Tannic acid oxidation stains<\/p>\n<p>First treat with stain-removing acid, then apply oxidative bleaching (chlorine bleach\/color-safe bleach).<\/p>\n<p>&#8211; Protein oxidation stains (blood stains, milk stains)<\/p>\n<p>It is recommended to first decompose with a protease preparation, then treat with stain-removing acid, and finally conduct oxidative bleaching.<\/p>\n<ul>\n<li><strong><b>Light yellow stains with lemon-green tint<\/b><\/strong><\/li>\n<\/ul>\n<p>They are mostly plant tannin pigments.<\/p>\n<p>Treat with stain-removing acid\u00a0\u2192 apply oxidative bleaching.<\/p>\n<ul>\n<li><strong><b>Precautions for common stain treatment<\/b><\/strong><\/li>\n<\/ul>\n<p>&#8211; Protein stains (sweat stains, milk stains&#8230;)<\/p>\n<p>Do not use hot water, as it will cause protein coagulation and increase the difficulty of removal.<\/p>\n<p>&#8211; Beverage stains (coffee, tea, fruit juice&#8230;)<\/p>\n<p>First spot-treat with an alkaline emulsifier, then alternate treatment with stain-removing acid, and finally perform oxidative bleaching.<\/p>\n<p>&#8211; Storage-induced yellow stains<\/p>\n<p>These are stubborn stains; it is recommended to use an alternating treatment method with oxidizing agents and acidic reducing agents.<\/p>\n<p>&#8211; Mold stains<\/p>\n<p>It is recommended to first locally treat with a stain remover containing ethanol disinfectant, then wipe and follow with oxidative bleaching (oxygen bleach or chlorine bleach).<\/p>\n<h2><strong>Operation Recommendations<\/strong><\/h2>\n<p>&#8211; Timely Treatment<\/p>\n<p>The newer the stain, the easier it is to remove.<\/p>\n<p>&#8211; Testing First<\/p>\n<p>Always do a small-scale test before any <a href=\"https:\/\/kingstarlaundry.com\/pt\/small-capacity\/standard-washer-15-20-25-kg-2\/\"><strong><u><b>stain removal<\/b><\/u><\/strong><\/a>\u00a0operation.<\/p>\n<p>&#8211; Categorized Operation<\/p>\n<p>Select appropriate treatment agents and methods based on different stain types. Avoid the overuse of bleach.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-4550 aligncenter\" src=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472.jpg\" alt=\"stain removal\" width=\"1080\" height=\"606\" srcset=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472.jpg 1080w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472-300x168.jpg 300w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472-1024x575.jpg 1024w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472-768x431.jpg 768w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472-18x10.jpg 18w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2025\/10\/\u56fe\u72472-600x337.jpg 600w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/p>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>Kingstar is always dedicated to providing professional technical support and advanced laundry solutions for the laundry industry. We hope that every laundry industry practitioner can use scientific, highly efficient, and safe methods to encounter all kinds of laundry problems, improve service quality, and customer satisfaction.<\/p>","protected":false},"excerpt":{"rendered":"<p>Yellow stains are one of the stubborn stains that laundry shops\u00a0frequently encounter in daily tasks. When facing yellow stains of [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[28],"tags":[],"class_list":["post-4548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/posts\/4548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/comments?post=4548"}],"version-history":[{"count":1,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/posts\/4548\/revisions"}],"predecessor-version":[{"id":4552,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/posts\/4548\/revisions\/4552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/media\/4551"}],"wp:attachment":[{"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/media?parent=4548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/categories?post=4548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kingstarlaundry.com\/pt\/wp-json\/wp\/v2\/tags?post=4548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}