iSuoChem Pigment Red 57:1 is a high-gloss organic red pigment developed for printing ink applications, especially coldset ink formulations. Featuring a bluish red shade, good color strength and stable color performance, this monoazo calcium lake pigment is suitable for solvent-based and water-based systems where consistent color development is required. We provide Pigment Red 57:1 with professional pigment manufacturing experience and customized support for global ink and coating customers.
Product Information – Pigment Red 57:1 Organic Pigment
Product Series: Organic Pigment Series
Product Grade: 5711
Color Index: Pigment Red 57:1
C.I. No.: PR 57:1
CAS No.: 5281-04-9
Product Type: Monoazo, Calcium-lake Organic Pigment
Color Shade: Bluish Shade
Recommended Applications: Solvent Based Systems and Water Based Systems
Appearance: Red Powder
Organic Pigment 57:1 Detail
Chemical Structure of Pigment Red 57:1 Organic Pigment
Feature of Pigment Red 57:1 Organic Pigment
High Gloss Color Appearance
Bluish Red Shade
Good Color Strength
Stable Color Performance
Suitable for Solvent Based Systems
Suitable for Water Based Systems
Reliable Pigment Quality Consistency
Physical and Chemical Properties – Pigment Red 57:1 PR 57:1
|
Property |
Specification |
|
Chemical Classification |
Monoazo, Calcium-lake |
|
Chemical Formula |
C18H12N2O6SCa |
|
Specific Gravity |
1.80 |
|
pH Value |
8.0 |
|
Color Strength |
97-103% of Standard |
|
Volatile Matter at 105℃ |
4.5% Max |
|
Soluble Matter in Water |
3.0% Max |
|
Oil Absorption |
40-50% |
|
Residues Passing Through (80 Mesh) |
5.0% Max |
Fastness Properties – Pigment Red 57:1 Organic Pigment
|
Property |
Rating |
|
Acid Resistance |
4-5 |
|
Alkali Resistance |
4 |
|
Water Resistance |
4 |
|
Oil Resistance |
3 |
|
Paraffin Wax Resistance |
5 |
|
Heat Resistance |
160℃ |
|
Light Fastness |
6 |
Recommended Applications for Pigment Red 57:1 Organic Pigment
|
Printing Ink |
Pigment Red 57:1 organic pigment is suitable for printing ink applications requiring bluish red shade, stable color performance and reliable color strength. It can be used in both solvent based ink and water based ink formulations. |
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|
Coating |
PR 57:1 pigment can be used in coating applications where stable shade, good color strength and dependable organic pigment performance are required. |
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Pigment Red 57:1 Equivalent Grade from iSuoChem
| iSuoChem Code | Product Name | Properties | Application | |||||||||||||
| Offset Ink | Flexo Ink | Gravure Ink | UV Ink | Coating | Plastic | |||||||||||
| Offset |
Water
Based
|
PA | CL-PP | NC | PU | Industrial Paint | Powder Coating | PVC | PO | Fibre | PP | Other | ||||
| BR571-W | Lisor Carmine | Water-based | ● | |||||||||||||
| BR571-WY | Lisor Carmine | Water-based, yellowish shade | ● | ○ | ||||||||||||
| BR571-BS | Lisor Carmine | Bluish shade, good flow properties | ● | |||||||||||||
| BR571-YS | Lisor Carmine | Yellowish shade, good flow properties | ● | |||||||||||||
| BR571-S | Lisor Carmine | Solvent-based | ○ | ○ | ||||||||||||
| BR571-GF | Lisor Carmine | Yellowish shade, good flow properties | ● | ● | ● | ● | ||||||||||
| BR571-BT | Lisor Carmine |
Bluish shade, good transparency
and gloss
|
● | ○ | ● | ● | ||||||||||
| BR571-SL | Lisor Carmine | Solvent-based, low aromatic amine | ● | ○ | ● | ● | ||||||||||
| BR571-HG | Lisor Carmine |
Bluish shade, high gloss
goodflow properties
|
● | ○ | ● | ● | ||||||||||
| BR571-C | Lisor Carmine |
Yellowish shade,
suitable for cold-set
|
● | ● | ● | ● | ● | |||||||||
| BR571-M | Lisor Carmine |
Mid-shade,
suitable for cold-set
|
● | ● | ||||||||||||
| BR571-CS | Lisor Carmine |
Bluish shade,
suitable for cold-set
|
● | ● | ● | ● | ● | |||||||||
| BR571-Y | Lisor Carmine |
Yellowish shade,
good flow properties
|
● | ● | ||||||||||||
| BR571-B | Lisor Carmine |
Bluish shade,
good flow properties
|
● | ○ | ● | |||||||||||
| BR571-MF | Lisor Carmine |
Mid-shade,
good flow properties
|
● | |||||||||||||
| BR571-F | Lisor Carmine | Flush | ● | |||||||||||||
| BR571-GD | Lisor magenta | Good dispersibility | ○ | ● | ● | ● | ● | ● | ||||||||
| BR571-LA | Lisor magenta | Low aromatic amine | ○ | ● | ● | ● | ● | ● | ||||||||
How Does Pigment Red 57:1 Create Its Bluish Red Shade?
For printing ink and coating manufacturers, the bluish red shade of Pigment Red 57:1 is influenced by three key factors: pigment chemistry, calcium lake structure and particle morphology.
Pigment Red 57:1 (Lithol Rubine, C.I. 15850:1) is a monoazo calcium lake pigment. During production, the azo compound is converted into an insoluble calcium salt structure through a laking process. This calcium-based structure gives the pigment its stable crystalline form and characteristic color properties.[1]
The final shade of Pigment Red 57:1 is also affected by crystal structure and particle morphology. Studies on PR57:1 have shown that different crystal states, particle sizes and aggregate structures can influence color characteristics such as hue, brightness and tint strength.[2]
For practical applications, consistent particle control and dispersion quality are important for maintaining stable color performance in ink and coating formulations. Variations in pigment morphology or aggregation may result in differences in color appearance between pigment batches.
Therefore, the bluish red shade of Pigment Red 57:1 is not determined only by its chemical composition. It results from the combined effects of azo pigment structure, calcium lake formation, crystal arrangement and particle morphology.
FAQ
1. What should be confirmed before using Pigment Red 57:1 in a printing ink formulation?
Before application, customers should evaluate the compatibility between Pigment Red 57:1 and their ink system, including resin type, solvent or water based formulation, dispersion process and required color shade.
A laboratory trial is recommended to confirm color development and processing performance before bulk production.
2. Why may the final color appearance of Pigment Red 57:1 differ between different formulations?
The final color appearance of Pigment Red 57:1 can be affected by factors such as pigment concentration, binder system, dispersion quality, film thickness and application substrate.
Therefore, the same pigment may show different visual effects when applied in different ink or coating systems.
3. How can customers evaluate the dispersion performance of Pigment Red 57:1?
Customers can evaluate dispersion performance by checking the uniformity of the finished formulation, color strength development, surface appearance and any visible pigment agglomeration after processing.
A dispersion test under the customer's actual formulation conditions is recommended before mass production.
4. What factors should be considered when selecting Pigment Red 57:1 for ink and coating applications?
- The main factors include:
- Required red shade
- Compatibility with the formulation system
- Required fastness properties
- Processing temperature
- Final application requirements
Pigment Red 57:1 provides a bluish red shade and is recommended for solvent base and water base systems.
References





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