pigment red 81
Pigment Red 81 (PR81) is a vibrant, synthetic organic pigment belonging to the Lake class. This means it is not a pure pigment in itself, but an insoluble aluminum or calcium salt of a water-soluble azo dye (specifically, derived from the acid dye). This "laking" process transforms the soluble dye into a solid, stable pigment with good coloristic properties.
Its most defining characteristic is its clean, bright bluish-red to magenta shade, often described as Rhodamine-like. This makes it highly valued for applications requiring intense, eye-catching fluorescence or high-visibility color, though the non-fluorescent grades are more common. It offers very high tinting strength and good lightfastness in mass tone, although its durability can diminish significantly in pale tints.
PR81's key limitation is its poor chemical resistance, particularly to acids and alkalis. It is also not recommended for applications involving prolonged water exposure or high temperatures.
Its primary uses leverage its brilliance:
-
Inks: Widely used in flexographic and gravure packaging inks, especially for posters, magazine covers, and labels where visual impact is critical.
-
Coatings: Employed in industrial and architectural finishes where maximum chroma is desired, though its use is limited to applications not exposed to harsh chemicals or weathering.
-
Plastics: Suitable for coloring PVC, polyolefins, and other polymers processed at lower temperatures, often incorporated via masterbatch. It is also a common colorant for synthetic fibers like polypropylene.
In summary, Pigment Red 81 is a cost-effective, high-strength pigment prized for its brilliant red-magenta hue in applications where extreme chemical and weather fastness are not required.
| Company Name | Hangzhou ColorSource Industry CO.,LTD. | Country/Region | China |
| Business Type | Trading Company | Company Size | 50 |
| Established | April 29, 2000 | ||
| Address | 浙江省杭州市萧山区北干街道永久路288号708室-1 | ||
| Main Products | Printing Inks: Water-based, solvent-based, offset, and UV inks Paint & Coatings: Water-based and solvent-based systems Plastics: Including PP, PE, PVC, PS, PC, ABS, PA, PA66, and more Textile Printing: Supporting both traditional and digital processes Stationary: Markers, highlighters, ball pens, gel pens, crayons, and coloring materials, Non-toxic and comply with EN71-3 | ||
| pigment | plastic,textile printing,pringting inks,paint,coating | ||
With more than 25 years of dedication to the pigment industry, Hangzhou Color Source Co., Ltd. has established itself as a reliable and experienced supplier of high-performance organic pigments. Specializing in OEM pigment manufacturing, we are committed to helping customers succeed by delivering not only quality products but also value-added service and long-term partnership.
Comprehensive Application Coverage
Our pigments are widely used across multiple industries and applications, including:
· Printing Inks: Water-based, solvent-based, offset, and UV inks
· Paint & Coatings: Water-based and solvent-based systems
· Plastics: Including PP, PE, PVC, PS, PC, ABS, PA, PA66, and more
· Textile Printing: Supporting both traditional and digital processes
· Stationary: Markers, highlighters, ball pens, gel pens, crayons, and coloring materials, Non-toxic and comply with EN71-3
No matter the end-use, we tailor our solutions to meet the specific needs of customers in diverse markets such as packaging, coatings, plastics processing, textile decoration and stationary.
Delivering Value Through Performance
At Hangzhou Color Source, we understand that consistent performance and cost-efficiency are key to our customers’ success. That’s why we focus on delivering pigments with:
· High Color Strength: Maximizing formulation efficiency
· Bright and Vivid Color Shades: Ideal for attractive and consistent color
· Good Gloss and Transparency: Ideal for vibrant and clean finishes. Opaque grade have good hiding power
· Excellent Dispersion and Viscosity Control: Simplifying processing and formulation
· High Heat Resistance & Weather Fastness: Ensuring durability under tough conditions
· Outstanding Migration Resistance: Especially important in sensitive plastic and packaging applications
Commitment to Service
Beyond product quality, we are known for:
· Competitive and Stable Pricing
· Reliable, On-Time Delivery
· Responsive Technical Support
· Customized Solutions and OEM Production
From sample,PSS testing to final shipment, our professional team works closely with customers to ensure smooth communication, technical advice, and continuous improvement.
Your Partner for Long-Term Success
Whether you're in ink formulation, masterbatch production, or paint manufacturing, Hangzhou Color Source offers the pigments and support you need to stay ahead in today’s competitive market.
Let us work for you bring more color, performance, and value to your products.
Send Inquiry
