{"id":9072,"date":"2025-10-23T07:53:18","date_gmt":"2025-10-23T07:53:18","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9072"},"modified":"2026-04-27T11:16:04","modified_gmt":"2026-04-27T11:16:04","slug":"dyes-pigments-how-to-tell-them-apart","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/fr\/dyes-pigments-how-to-tell-them-apart\/","title":{"rendered":"Des colorants ? Les pigments ? Comment les distinguer ?"},"content":{"rendered":"<h1><strong><b>Des colorants ? Les pigments ? Comment les distinguer ?<\/b><\/strong><\/h1>\r\nBonjour \u00e0 tous ! Je suis une employ\u00e9e vedette \u00e0 <a href=\"https:\/\/chromeclair.com\/\">CHROM\u00c9CLAIR<\/a>, une marque de <a href=\"https:\/\/chromeclair.com\/product-category\/solid-color-gel-polish\/\"><u>marques de vernis gel sans hema<\/u><\/a>Aujourd'hui, nous ferons la distinction entre les colorants et les pigments selon quatre points de vue.\r\n<h3><strong>Quelle est la diff\u00e9rence entre les pigments et les colorants ?<\/strong><\/h3>\r\n<u>Pigments<\/u>\u00a0et les colorants sont tous deux appel\u00e9s mati\u00e8res colorantes. Les substances colorantes solubles dans l'eau, principalement utilis\u00e9es pour teindre la soie, la laine, le coton et d'autres mat\u00e9riaux, sont appel\u00e9es colorants. L'autre cat\u00e9gorie, insoluble dans l'eau, repose principalement sur l'huile ou la colle pour adh\u00e9rer \u00e0 la surface du mat\u00e9riau et s'appelle le pigment, \u00e9galement connu sous le nom de peinture.\r\n\r\n<img decoding=\"async\" class=\"alignnone size-full wp-image-9073\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>\r\n\r\n<strong><b>Pigments :<\/b><\/strong>\u00a0Principalement \u00e0 base de min\u00e9raux, tels que l'oxyde de fer rouge, l'ocre (oxyde de fer), le cinabre, le vermillon (sulfure de mercure), le plomb rouge (t\u00e9troxyde de plomb) et le vert-de-gris (carbonate de cuivre basique).\r\n\r\n<strong><b>Colorants : <\/b><\/strong>Also known as pigments. They can be natural or synthetic.\r\n\r\nNatural dyes are commonly encountered in daily life:\r\n<ul>\r\n \t<li>Lorsque l'on mange de la past\u00e8que en \u00e9t\u00e9, le jus rouge tache les v\u00eatements blancs et il est difficile de le faire dispara\u00eetre : c'est une sorte de teinture.<\/li>\r\n<\/ul>\r\n<img decoding=\"async\" class=\"alignnone size-full wp-image-9074\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-6-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>\r\n<ul>\r\n \t<li>Au restaurant, l'eau infus\u00e9e de gard\u00e9nia donne une teinte jaune fonc\u00e9, qui sert \u00e9galement de teinture pour les tissus.<\/li>\r\n \t<li>Les plantes rencontr\u00e9es dans la vie quotidienne, y compris leurs fleurs, peuvent \u00e9galement \u00eatre utilis\u00e9es pour la teinture.<\/li>\r\n<\/ul>\r\n<h3><strong>Distinction 1 : Solubilit\u00e9<\/strong><\/h3>\r\nLes colorants sont des substances solubles utilis\u00e9es pour donner de la couleur \u00e0 des mat\u00e9riaux \u00e0 partir d'un solvant. Les pigments sont des substances particulaires insolubles dispers\u00e9es dans le milieu qu'elles colorent, produisant des effets de diffusion. Si cette distinction simple reste valable dans la plupart des cas, il existe de nombreuses exceptions qui n\u00e9cessitent des crit\u00e8res suppl\u00e9mentaires pour diff\u00e9rencier ces deux colorants. Aucune d\u00e9finition n'est enti\u00e8rement satisfaisante, car un compos\u00e9 donn\u00e9 peut \u00eatre class\u00e9 comme colorant ou comme pigment, souvent en fonction de l'application \u00e0 laquelle il est destin\u00e9.\r\n\r\n<img decoding=\"async\" class=\"alignnone size-full wp-image-9075\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-6-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>\r\nPendant des ann\u00e9es, il a \u00e9t\u00e9 commun\u00e9ment dit que \"...<strong><b>les colorants sont solubles, les pigments sont insolubles<\/b><\/strong>.\u201d This is generally true:\r\n\r\nMost dyes are water-soluble at some stage when applied to fibers or fabrics. However, there are exceptions, or at least borderline cases. For example, reduction dyes, such as indigo used to dye blue jeans, are typically insoluble in water but \u201cdissolve\u201d through reduction during the dyeing process.\r\n\r\nUnlike dyes, pigments are always insoluble in water within their application medium: any degree of solubility (termed \u201cbleed\u201d in the pigment industry) is considered a defect. To my knowledge, there are no exceptions. In other words, when a colorant typically used as an insoluble pigment is employed in solution, it is often simply called a dye!\r\n<h3><strong>Deuxi\u00e8me distinction : organique et inorganique<\/strong><\/h3>\r\nAnother traditional distinction between dyes and pigments is that dyes are organic compounds, while pigments are inorganic compounds.\r\n\r\nThe number of inorganic dyes is virtually zero, but since the rise of the organic chemical industry, the number of organic pigments has steadily increased. Today, the distinction is one-sided:\r\n\r\nMost dyes remain organic, but most colored pigments are no longer inorganic. Until recently, all white pigments were inorganic\u2014such as titanium dioxide or zinc oxide\u2014but plastic microspheres are now being used as highly efficient, lightweight white light-scattering pigments.\r\n\r\n(e.g., water-based hollow microsphere plastic pigments, hollow microsphere white pigments)\r\n<h3><strong>Troisi\u00e8me distinction : Processus de coloration<\/strong><\/h3>\r\nThe third distinction arises from the coloring process of dyes and pigments on materials such as coatings or plastics.\r\n\r\nColoring agents that dissolve in the medium and form transparent mixtures are called dyes, while pigments do not dissolve but scatter light, creating translucent or opaque formulations. Pigments are used when opacity is required, while dyes\u2014typically divided into alcohol-soluble and oil-soluble types\u2014are employed to color transparent media without compromising their transparency. Another method to achieve transparency involves using pigments with very small particle sizes or, if feasible, pigments with refractive indices similar to the medium.\r\n<h3><strong><img decoding=\"async\" class=\"alignnone size-full wp-image-9076\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/4-6-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Quatri\u00e8me distinction : M\u00e9canisme de liaison<\/strong><\/h3>\r\nThe final distinction, which proves most effective and least exceptional for us, is based on the mechanism by which the colorant binds to the substrate.\r\n\r\nIf the colorant exhibits affinity for the substrate (textiles, paper, etc.) and becomes an integral part of the colored material without requiring an intermediate binder, we classify this colorant as a dye. This material affinity or affinity for the substrate clearly distinguishes dyes from pigments. Pigments lack affinity for the substrate and require a binder to fix them onto the substrate. Pigments cannot adhere to surfaces without a binder.\r\n\r\nI hope this article helps you understand pigments more easily!\r\n\r\nCHROM\u00c9CLAIR offers Base coats, Top coats, solid color <a href=\"https:\/\/chromeclair.com\/product-category\/solid-color-gel-polish\/\"><u>gel polish sans HEMA<\/u><\/a>et <a href=\"http:\/\/chromeclair.com\/product\/cat-eye-gel-polish-hema-free-and-tpo-free-ce08\/\"><u>Vernis gel pour les yeux de chat sans h\u00e9matome<\/u><\/a>.\r\n\r\n<img decoding=\"async\" class=\"alignnone size-full wp-image-8984\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Leur site web propose \u00e9galement des tutoriels de nail art, comme par exemple :\r\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/get-your-plaid-manicure-done-in-no-time\/\">R\u00e9alisez votre manucure \u00e0 carreaux en un rien de temps !<\/a><\/p>\r\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/get-a-space-manicure-at-home-manicure-in-4-easy-steps\/\">Manucure dans l'espace Manucure \u00e0 domicile en 4 \u00e9tapes faciles\uff01<\/a><\/p>\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\r\n\r\n&nbsp;\n\n\n<p><strong>Related product references:<\/strong> For formulation review or sourcing comparison, see <a href=\"https:\/\/changhongchemical.com\/product\/hema-free-tpo-free-gel-polish\/\">CHROM\u00c9CLAIR HEMA-free &amp; TPO-free Gel Polish<\/a> et <a href=\"https:\/\/changhongchemical.com\/product\/chluminit-tmo-photoinitiator-cas-270586-78-2\/\">CHLUMINIT TMO<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hello everyone! I&#8217;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish brands.Today, we will distinguish between dyes and pigments from four perspectives. What is the difference between pigments and dyes?&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[],"class_list":["post-9072","post","type-post","status-publish","format-standard","hentry","category-gel-polish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dyes? Pigments? How to tell them apart- Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Hello everyone! I&#039;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish brands.Today, we will distinguish between dyes and pigments from four perspectives.What is the difference between pigments and dyes?Pigments and dyes are both referred to as coloring materials. Water-soluble colored substances primarily used to dye silk, wool, cotton, and other materials are called dyes. The other category, insoluble in water, mainly relies on oil or glue to adhere to the material surface and is called pigment, also known as paint.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/changhongchemical.com\/fr\/dyes-pigments-how-to-tell-them-apart\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dyes? Pigments? 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The other category, insoluble in water, mainly relies on oil or glue to adhere to the material surface and is called pigment, also known as paint.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/changhongchemical.com\/fr\/dyes-pigments-how-to-tell-them-apart\/\" \/>\n<meta property=\"og:site_name\" content=\"Changhong Chemical\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-23T07:53:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-27T11:16:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"3462\" \/>\n\t<meta property=\"og:image:height\" content=\"2084\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Changhong Chemical\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Changhong Chemical\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/dyes-pigments-how-to-tell-them-apart\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/dyes-pigments-how-to-tell-them-apart\\\/\"},\"author\":{\"name\":\"Changhong Chemical\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/person\\\/2a9593ff69d6db8f8ca0567ca3ed6b5d\"},\"headline\":\"Dyes? 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Les pigments ? Comment les distinguer - Changhong Chemical","description":"Bonjour \u00e0 tous ! Je suis une employ\u00e9e vedette de CHROM\u00c9CLAIR, une marque de gel polish sans h\u00e9matome.Aujourd'hui, nous allons faire la distinction entre les colorants et les pigments sous quatre angles.Quelle est la diff\u00e9rence entre les pigments et les colorants?Les pigments et les colorants sont tous deux appel\u00e9s des mati\u00e8res colorantes. Les substances colorantes solubles dans l'eau, principalement utilis\u00e9es pour teindre la soie, la laine, le coton et d'autres mat\u00e9riaux, sont appel\u00e9es colorants. L'autre cat\u00e9gorie, insoluble dans l'eau, repose principalement sur l'huile ou la colle pour adh\u00e9rer \u00e0 la surface du mat\u00e9riau et est appel\u00e9e pigment, \u00e9galement connu sous le nom de peinture.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/changhongchemical.com\/fr\/dyes-pigments-how-to-tell-them-apart\/","og_locale":"fr_FR","og_type":"article","og_title":"Dyes? Pigments? How to tell them apart- Changhong Chemical","og_description":"Hello everyone! I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish brands.Today, we will distinguish between dyes and pigments from four perspectives.What is the difference between pigments and dyes?Pigments and dyes are both referred to as coloring materials. Water-soluble colored substances primarily used to dye silk, wool, cotton, and other materials are called dyes. The other category, insoluble in water, mainly relies on oil or glue to adhere to the material surface and is called pigment, also known as paint.","og_url":"https:\/\/changhongchemical.com\/fr\/dyes-pigments-how-to-tell-them-apart\/","og_site_name":"Changhong Chemical","article_published_time":"2025-10-23T07:53:18+00:00","article_modified_time":"2026-04-27T11:16:04+00:00","og_image":[{"width":3462,"height":2084,"url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp","type":"image\/webp"}],"author":"Changhong Chemical","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Changhong Chemical","Dur\u00e9e de lecture estim\u00e9e":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#article","isPartOf":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/"},"author":{"name":"Changhong Chemical","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d"},"headline":"Dyes? Pigments? How to tell them apart","datePublished":"2025-10-23T07:53:18+00:00","dateModified":"2026-04-27T11:16:04+00:00","mainEntityOfPage":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/"},"wordCount":782,"publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"image":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp","articleSection":["Gel Polish"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/","url":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/","name":"Des colorants ? Les pigments ? Comment les distinguer - Changhong Chemical","isPartOf":{"@id":"https:\/\/changhongchemical.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#primaryimage"},"image":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#primaryimage"},"thumbnailUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp","datePublished":"2025-10-23T07:53:18+00:00","dateModified":"2026-04-27T11:16:04+00:00","description":"Bonjour \u00e0 tous ! Je suis une employ\u00e9e vedette de CHROM\u00c9CLAIR, une marque de gel polish sans h\u00e9matome.Aujourd'hui, nous allons faire la distinction entre les colorants et les pigments sous quatre angles.Quelle est la diff\u00e9rence entre les pigments et les colorants?Les pigments et les colorants sont tous deux appel\u00e9s des mati\u00e8res colorantes. Les substances colorantes solubles dans l'eau, principalement utilis\u00e9es pour teindre la soie, la laine, le coton et d'autres mat\u00e9riaux, sont appel\u00e9es colorants. L'autre cat\u00e9gorie, insoluble dans l'eau, repose principalement sur l'huile ou la colle pour adh\u00e9rer \u00e0 la surface du mat\u00e9riau et est appel\u00e9e pigment, \u00e9galement connu sous le nom de peinture.","breadcrumb":{"@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#primaryimage","url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp","contentUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-6.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/changhongchemical.com\/dyes-pigments-how-to-tell-them-apart\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/changhongchemical.com\/"},{"@type":"ListItem","position":2,"name":"Dyes? 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