Product Summary

JH-325 is an anionic styrene-acrylic surface sizing agent designed for cultural paper production. It enhances surface bonding force, reduces linting and picking, and optimizes ink affinity for high-speed printing. The product is compatible with both acidic sizing (aluminum sulfate) and neutral papermaking systems, offering flexibility to paper mills.

Key Selling Points

• Strengthens surface: With solid content 25.0±1.0%, film-forming improves dry/wet strength of offset, copy, and book paper.
• Rapid crosslinking: Reacts with starch components to form a tight coating, ensuring even sizing coverage and avoiding local water absorption differences.
• Printing optimization: Balances moderate water resistance and ink affinity, inhibiting ink bleeding and penetration for clear, vivid prints.
• Process flexibility: Suitable for acidic and neutral systems, compatible with retention aids and defoamers without flocculation.
• High-speed stability: Excellent shear resistance and low foaming prevent bubble pinholes and streaks during continuous production.

Technical Specifications

Models and Options

This anionic surface sizing agent is available in the standard grade as specified. Customized packaging (flexibags, tanks) and volume options are available. MOQ: 1MT.

Materials and Structure

Based on anionic styrene-acrylic copolymer emulsion, designed to interact with starch and cellulose fibers in papermaking.

Applications

Primarily for cultural paper types: offset printing paper, copy paper, book paper. Suitable for acidic sizing with aluminum sulfate and neutral systems. Works with various retention aids and defoamers.

Customization

Customized formulations available based on pulp composition and machine parameters. In-house pilot lab supports tailored testing and optimization.

FAQ

What is the typical addition rate?

Dosage depends on paper grade and machine conditions; contact our technical team for recommendations.

Can be used with aluminum sulfate?

Yes, compatible with both acidic and neutral sizing processes.

Does it affect paper brightness?

It improves surface properties without sacrificing brightness.

How to store?

Store at normal temperature, avoid freezing, use within 6 months.

Is it suitable for high-speed machines?

Excellent shear resistance and low foaming make it ideal for high-speed operations.

What certifications do you have?

ISO9001, ISO14001, Halal, and SGS food contact compliance.

Inquiry Information

Image Filename and Alt Suggestions

Main image: anionic-surface-sizing-agent-jh325-acid-sizing.png – Product liquid container and label.