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High chroma and excellent color consistency across batches for reliable paper tinting.
Water-based formulation ensures easy dispersion, low VOC content, and compliance with environmental safety standards.
Superior lightfastness and heat stability during paper drying and calendering processes.
Non-bleeding and non-migrating properties prevent color transfer during stacking, cutting, or printing.
Compatible with both alkaline and neutral papermaking systems without affecting sizing or strength properties.
Colored base paper for stationery, notebooks, and greeting cards.
Tinted packaging paper for food-grade and retail corrugated board liners.
Decorative paper used in laminates and furniture surfacing.
Specialty paper for labels, tickets, and security documents requiring consistent hue and opacity.
Newsprint and magazine paper where controlled shade adjustment is required without compromising runnability.
| Chemical Type | Organic pigment dispersion in aqueous medium |
| Product Form | Viscous liquid paste |
| Appearance | Homogeneous, non-settling suspension with characteristic pigment color |
| pH Value (25°C) | 7.0–8.5 |
| Brookfield Viscosity (25°C, Spindle #3, 12 rpm) | 8,000–12,000 cP |
| Solids Content | 35–45 wt% |
| Heavy Metals (Pb, Cd, Hg, Cr⁶⁺) | Compliant with EU REACH and ISO 8781-2 |
| Storage Stability | 12 months at 5–30°C in sealed container; no refrigeration required |
Q1: What types of paper substrates is this color paste suitable for?
A: Domestic Paper Coloring Color Paste is formulated for use with common cellulosic paper grades, including kraft, newsprint, writing paper, and lightweight coated papers. It delivers consistent dispersion and color development across both acidic and neutral pH papermaking systems.
Q2: How is the color paste added during paper production?
A: It is typically dosed into the wet-end system—either at the fan pump or in the stock approach flow—using standard metering pumps. Pre-dilution with process water may be recommended to ensure uniform distribution, especially in high-speed paper machines.
Q3: Does this product contain heavy metals or restricted aromatic amines?
A: No. The color paste is manufactured using pigments and carriers compliant with general industry expectations for domestic paper applications. It is free from intentionally added heavy metals and azo dyes that cleave to regulated aromatic amines.
Q4: Can it be used in recycled fiber-based papermaking?
A: Yes. The formulation is compatible with deinked pulp and mixed recycled furnish. Its stability under typical retention aid conditions helps maintain color consistency even in variable fiber blends.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
