Basic Dyes
Basic dyes which also known as cationic dyes,are a class of water-soluble dyes that carry a positive charge when dissolved in water. They are the most brilliantly colored dyes available, producing the most intense and saturated hues of any dye class. Basic dyes bond ionically to negatively charged sites on fibers, making them the primary choice for acrylic fiber dyeing where they deliver vivid, eye-catching colors with excellent exhaustion. They are also used on wool, silk, paper, and leather where bright coloration is the priority.
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![Basic Yellow 51]()
Basic Yellow 51PRODUCT NAME: Basic Yellow 51. TYPE: Basic Dyes. CAS NO: 71173-70-1/83949-75-1. MOQ: 25KG. PACKAGE: Carton.
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![Basic Red 46]()
Basic Red 46PRODUCT NAME: Basic Red 46. TYPE: Basic Dyes. CAS NO: 2950-47-2/105595-89-9/12221-69-1. MOQ: 25KG. PACKAGE: Carton.
Application
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Application Sector |
Primary Substrate |
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Textile apparel |
Acrylic, wool, silk |
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Home furnishings |
Acrylic carpets, blankets |
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Paper industry |
Cellulose fibers |
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Leather goods |
Fashion leather |
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Scientific |
Biological specimens |
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Industrial |
Inks, coatings |
Shade Card
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Color |
Product Name |
C.I.Name |
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Bismarck Brown |
Basic Brown 1 |
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Basic Chrysodine |
Basic Orange 2 |
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Auramine O |
Basic Yellow 2 |
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Visctoria Blue |
Basic Blue 26 |
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Diamond Green |
Basic Green 1 |
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Malechite Green |
Basic Green 4 |
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Methyle Violet |
Basic Violet 1 |
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Basic Rhodamine |
Basic Violet 10 |
FAQ
Q: Why do basic dyes work so well on acrylic fibers?
A: Acrylic fibers are manufactured with sulfonic acid groups (-SO₃H) specifically to accept cationic dyes. When wet, these groups become negatively charged (-SO₃⁻), creating ideal sites for ionic bonding with positively charged basic dye molecules. This engineered compatibility produces excellent exhaustion, good wash fastness (Grade 4), and superior light fastness on acrylic — far better than basic dyes achieve on any other fiber.
Q: Can basic dyes be used on cotton or cellulosic fibers?
A: Not directly — cotton has no natural affinity for cationic dyes. Basic dyes can only dye cellulosic fibers after mordanting with a negatively charged compound (typically tannic acid followed by tartar emetic). This creates anionic sites for dye attachment. However, the resulting fastness is poor, and the process is rarely used commercially. For cotton, use reactive, direct, or vat dyes instead.
Q: Are basic dyes safe for food contact or cosmetic applications?
A: Most basic dyes are NOT food-safe. Many basic dyes have toxicity concerns and are restricted from food contact, cosmetics, and children's products. Some certified basic dyes are approved for specific food applications (e.g., certain triphenylmethane dyes), but this requires verification against FDA, EU, or local regulations. Always check specific dye certifications before use in sensitive applications.
As one of the most professional basic dyes manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to buy high-grade basic dyes made in China here from our factory. For price consultation, contact us.
dyes in water, basic dyestuff, Basic Red 46
