{"id":20855,"date":"2026-08-07T15:30:26","date_gmt":"2026-08-07T07:30:26","guid":{"rendered":"https:\/\/kingstarlaundry.com\/?p=20855"},"modified":"2026-08-07T15:30:26","modified_gmt":"2026-08-07T07:30:26","slug":"garment-bleaching-methods-for-commercial-laundry-shops-chlorine-bleach-vs-oxygen-bleach","status":"publish","type":"post","link":"https:\/\/kingstarlaundry.com\/vi\/garment-bleaching-methods-for-commercial-laundry-shops-chlorine-bleach-vs-oxygen-bleach\/","title":{"rendered":"Garment Bleaching Methods for Commercial Laundry Shops: Chlorine Bleach vs. Oxygen Bleach"},"content":{"rendered":"<p>In <a href=\"https:\/\/kingstarlaundry.com\/vi\/solution\/laundromats\/\"><strong><u><b>commercial laundry shops<\/b><\/u><\/strong><\/a>, bleaching is a key process for removing yellowing, mildew, and stubborn biological stains on white and light-colored garments. On the market, there are various bleaching agents. Most <a href=\"https:\/\/kingstarlaundry.com\/vi\"><strong><u><b>laundry shop<\/b><\/u><\/strong><\/a>s are unsure how to choose the right solution.<\/p>\n<p>Sodium hypochlorite (chlorine bleach) has excellent bleaching performance. However, it has a higher operational threshold. It is more likely to damage fabrics, which causes many laundry shops to avoid using it. Actually, chlorine bleaching requires proper dilution, neutralization process, and fabric adaptability. Therefore, it can achieve powerful stain removal, disinfection, and bleaching. This significantly improves the cleanliness of white linen and garments. This article will introduce the usage and operational points of chlorine bleach.<\/p>\n<h2><strong>What is Chlorine <\/strong><strong>B<\/strong><strong>leach<\/strong><\/h2>\n<p>Sodium hypochlorite is a strong oxidizing and highly alkaline bleaching agent. It is effective in removing mildew, blood, and microorganism-based stains. White uniforms as well as white cotton and linens may carry black, yellow, and mildew stains. Chlorine bleach has a better cleaning power than oxygen bleach.<\/p>\n<ul>\n<li>Drawbacks<\/li>\n<\/ul>\n<p>However, it has noticeable drawbacks. High-concentration solution directly corrodes and degrades fibers. After several washing cycles, chlorine may remains inside the fabric. It results in fiber weakening and damage. Rinsing with clean water cannot remove residual chlorine inside the fabric. Water only removes the free chlorine on the surface. Deep residues should be removed by chemical neutralization. This is the core cause why garments are more likely to become thinner and yellow after chlorine bleach in household laundry. During the bleaching process, fabric damage may also be caused by an unbalanced dilution ratio as well as acid or reductive neutralization.<\/p>\n<ul>\n<li>Chemical characteristics<\/li>\n<\/ul>\n<p>Chlorine bleach is highly alkaline. All acid agents can accelerate its oxidation reaction. Adding acid into chlorine bleach solution accelerates corrosion, which is more likely to cause fabric burnout. Rinsing with clean water cannot thoroughly remove residual chlorine inside the fabric. It is recommended to use two neutralization methods.<\/p>\n<p>&#8211; Acid neutralization<\/p>\n<p>Residual chlorine can be neutralized through mildly acidic treatment.<\/p>\n<p>&#8211; Reduction neutralization<\/p>\n<p>Reduction agents neutralize the oxidation of chlorine bleach. Yellowing and color-fading may appear on the fabric after bleaching. These issues can be processed by reduction agents, such as sodium sulfite.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-20857\" src=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt.jpg\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt.jpg 1920w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-300x169.jpg 300w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-1024x576.jpg 1024w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-768x432.jpg 768w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-1536x864.jpg 1536w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-18x10.jpg 18w, https:\/\/kingstarlaundry.com\/wp-content\/uploads\/2026\/08\/white-T-shirt-600x338.jpg 600w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<h2><strong>Proper<\/strong><strong>\u00a0Dilution<\/strong><\/h2>\n<p>The commercial standard active concentration is 1%. On the market, the common stock solution concentration of retail sodium hypochlorite is 6%.<\/p>\n<p>Dilution ratio:<\/p>\n<p>6% chlorine bleach : clean water = 1 : 5<\/p>\n<p>It is recommended to use a plastic container to prevent chemical reactions with metal containers.<\/p>\n<ul>\n<li>Soaking process<\/li>\n<\/ul>\n<p>Fill a plastic bucket with warm water. Add 1 ounce of 1% chlorine bleaching solution per gallon (3.7852 L) of water. Add small amounts of neutral fabric lubricant. Soak garments completely in the solution. Cover the garments with a towel to reduce air exposure. This also prevents localized air drying and uneven bleaching. The soaking time should be controlled within 15 minutes. Excessive soaking time significantly increases fiber corrosion risks. After the initial rinse, reconduct a rinse. Use 28% acetic acid or oxalic acid for acid neutralization. Or prepare a reduction-neutralization solution with sodium sulfite. Add 1 ounce of sodium sulfite per gallon of water. Soak before complete rinsing. This can thoroughly decompose residual chlorine inside the fabric.<\/p>\n<h2><strong>Spot Bleaching Process<\/strong><\/h2>\n<p>The large-area soaking process is suitable for the entire yellowed and moldy linen. Bleach sticks are often used for removing localized mildew and dark stubborn stains. Compared with applying liquid chlorine bleach, it is more controllable. This chemical agent does not spread to damage other intact fabrics. Do not mix chlorine bleach with other chemical agents.<\/p>\n<ul>\n<li>Steps<\/li>\n<\/ul>\n<ol>\n<li>Apply bleach sticks to the localized stains.<\/li>\n<li>Use a steam gun to accelerate stain breakdown.<\/li>\n<li>Reapply bleach sticks to strengthen the cleaning performance.<\/li>\n<li>Spray mildly acidic agents to accelerate the action on residual chlorine.<\/li>\n<li>Reuse steam to heat.<\/li>\n<li>Flush completely with clean water.<\/li>\n<li>Acid agents or sodium sulfite solution is used for removing residual chlorine.<\/li>\n<li>Rinse.<\/li>\n<\/ol>\n<ul>\n<li>Note<\/li>\n<\/ul>\n<p>Do not mix chlorine bleach with ammonia water and alkaline agents. Otherwise, they may produce chemical reactions to release toxic chlorine gas. This also harms operator health, causing irreversible fabric damage.<\/p>\n<h2><strong>Usage Standards for Different <\/strong><strong>F<\/strong><strong>abrics<\/strong><\/h2>\n<p>Different fabrics vary in their resistance to chlorine bleaching and oxidation performance. For colored fabrics, do a spot test in hidden areas before chlorine bleaching. Confirm that there is no color fading before large-area operation.<\/p>\n<ul>\n<li>Cotton\/linen\/white vatting cotton cloth<\/li>\n<\/ul>\n<p>They have a higher resistance level. 1% diluted chlorine bleaching can be used for cleaning. Light-colored vatting cotton cloth only requires gentle bleaching and reduced soaking time.<\/p>\n<ul>\n<li>Artificial white fabric<\/li>\n<\/ul>\n<p>Dilute chlorine bleach according to the standard. Soak the fabric for a short time. After rinsing, carry out neutralization completely.<\/p>\n<ul>\n<li>Acetate fiber<\/li>\n<\/ul>\n<p>If contacting chlorine bleach, white acetate fiber\u00a0is more likely to cause overall yellowing. After rinsing, neutralize it with sodium sulfite.<\/p>\n<ul>\n<li>Silk\/wool protein fiber<\/li>\n<\/ul>\n<p>They are sensitive to chlorine bleaching. Spot rinse them for a short time with a very mild diluted solution. Before operation, perform a spot test. Once yellowing appears, soak the fabric in sodium sulfite for restoration.<\/p>\n<h2><strong>Fabric Yellowing Restoration Solutions<\/strong><\/h2>\n<p>Incomplete chlorine neutralization causes fabric yellowing. There are two solutions for this issue.<\/p>\n<ul>\n<li>Localized restoration<\/li>\n<\/ul>\n<p>Dissolve sodium sulfite according to the requirement.\u00a0Then add half a spoon of neutral detergent. After complete shaking, apply it to the yellowed areas. Use steam heating for a short while. Finally, rinse with clean water.<\/p>\n<ul>\n<li>Full-bath restoration<\/li>\n<\/ul>\n<p>Add 1 ounce of sodium sulfite and 0.5 ounce of neutral detergent per gallon of water. Soak the fabric for at least 15 minutes. Rinse completely with clean water several times to remove residual chlorine that causes yellowing.<\/p>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>Sodium hypochlorite has advantages in powerful oxidation, disinfection, and mildew removal. It is designed for bleaching heavily soiled white fabrics. However, due to its high corrosiveness, it cannot be handled through uncontrolled operations. Laundry operators should focus on the following key points:<\/p>\n<p>&#8211; Dilute the bleaching solution to 1% concentration.<\/p>\n<p>&#8211; Control the soaking time.<\/p>\n<p>&#8211; Perform chemical neutralization after rinsing. Do not rely on rinsing with clean water.<\/p>\n<p>Besides, they should distinguish between full-bath bleaching and spot bleaching with bleach sticks. Use different bleaching methods for cotton, linen, polyester, and protein fabrics. Perform a spot test before operation. At the same time, do not mix different agents to prevent safety accidents, such as chlorine gas leakage.<\/p>\n<p>Many laundry shops do not use chlorine bleaching due to their concerns about fabric damage. They choose gentle oxygen bleaching. However, it cannot provide the ideal cleaning performance for heavy mildew and old microorganism stains.<\/p>\n<p>Laundry shops should establish a standardized process (dilution, soaking, neutralization, and restoration) as well as inspection tools for residual chlorine and oxidation. This can achieve powerful bleaching performance. At the same time, it can reduce fabric damage risks. The cleaning performance and linen service life can also be improved. Therefore, laundry shops can address stubborn stains on white fabrics. They can further improve cleaning quality and customer satisfaction.<\/p>\n<h2><strong>Q&amp;A<\/strong><\/h2>\n<p>Q1: Can chlorine bleaching be replaced by oxygen bleaching?<\/p>\n<p>A1: Oxygen bleaching is safer. But chlorine bleaching provides better whitening performance on white cotton fabrics. It also requires standardized operations. If laundry shops are not sure about chlorine bleaching, oxygen bleaching can be considered.<\/p>\n<p>Q2: Does a <a href=\"https:\/\/kingstarlaundry.com\/vi\/commercial-coin-operated\/\"><strong><u><b>Kingstar wet cleaning machine<\/b><\/u><\/strong><\/a>\u00a0support a bleaching program?<\/p>\n<p>A2: Yes. This can be set based on soaking programs.<\/p>\n<p>Q3: If I want to open a laundry shop, can Kingstar provide a design solution?<\/p>\n<p>A3: Yes. Kingstar provides complete design solutions. It has various cases for dry cleaners and laundromats.<\/p>","protected":false},"excerpt":{"rendered":"<p>In commercial laundry shops, bleaching is a key process for removing yellowing, mildew, and stubborn biological stains on white and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":20856,"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-20855","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/posts\/20855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/comments?post=20855"}],"version-history":[{"count":1,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/posts\/20855\/revisions"}],"predecessor-version":[{"id":20858,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/posts\/20855\/revisions\/20858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/media\/20856"}],"wp:attachment":[{"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/media?parent=20855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/categories?post=20855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kingstarlaundry.com\/vi\/wp-json\/wp\/v2\/tags?post=20855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}