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JH-611 Cationic Surface Sizing Agent for Paper Waterproofing

en stock:
SKU: 5390468074
modelo: JH-611

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Cationic Surface Sizing Agent JH-611 for Paper Waterproofing

JH-611 is a cationic styrene-acrylic surface sizing agent designed to enhance paper water resistance and moisture-proof capacity. When blended with starch, it forms a compact cross-linked waterproof film that prevents paper softening and structural collapse under high humidity. It directly replaces wet-end internal sizing agents, delivers immediate performance after drying, and improves ring crush stiffness, surface hardness, and smoothness.

Key Selling Points

  • Cationic molecular structure ensures uniform combination with anionic starch, delivering consistent sizing coverage on the entire paper web without uneven water repellency.
  • Direct replacement for wet-end internal sizing agents; no curing time required, stable waterproof performance obtained immediately after paper drying.
  • Small dosage brings dual improvement of waterproof performance and physical strength, delivering excellent cost advantage for long-term continuous production.
  • Perfect synergy with ordinary raw starch, effectively lowering the comprehensive sizing chemical procurement cost for paper mills with no complicated dosing procedures.
  • Outstanding shear resistance and low foaming property during high-speed surface sizing operation, avoiding bubble spots and surface defects on paper.
  • Reduces sticky deposits on sizing rolls and drying cylinders, cutting equipment maintenance and cleaning frequency.

Technical Specifications

PropertyValue
AppearanceBrown liquid
Solid content (%)30.0 ± 1.0
pH2.0 - 5.0
Viscosity (25℃, cps)≤ 50
Ionic typeCationic
SolubilitySoluble
Shelf life6 months

Models and Options

JH-611 is available in liquid form, suitable for automatic metering pump feeding into starch pipeline. Packaging options can be customized upon request.

Materials and Structure

The product is based on styrene-acrylic copolymer, featuring a cationic molecular structure that ensures excellent bonding with anionic starch systems.

Applications

JH-611 is highly adaptable to all types of wood pulp, chemical pulp, mixed recycled pulp, and mechanical pulp. It is ideal for corrugated paper, containerboard, boxboard, and other packaging paper grades requiring strong water resistance and physical strength. The product suits paper mills that need stable sizing effect amid fluctuations in pulp quality, water hardness, and production temperature.

Customization

JHDA offers customized formula development and on-site technical tuning. Your specific pulp composition and machine parameters can be accommodated to optimize chemical consumption and paper quality.

Case Study

JHDA has served global paper mills for 10 years, delivering enhanced physical indicators and stable machine operation. In-house pilot laboratory supports targeted formula customization and free sample trials, cutting chemical consumption per ton of paper and upgrading ring crush strength, water resistance, and paper brightness.

FAQ

Can JH-611 replace wet-end sizing agents?

Yes, JH-611 can directly replace wet-end internal sizing agents without curing time. Stable waterproof performance is obtained immediately after paper drying.

Is JH-611 compatible with raw starch?

Absolutely. It works perfectly with ordinary raw starch, simplifying dosing procedures and reducing overall chemical costs.

Does JH-611 affect paper printing and converting?

No, it improves ring crush stiffness, surface hardness, and smoothness, reducing breakage and cracking during printing, creasing, and die-cutting.

What is the recommended dosage?

Small dosage is effective; exact dosage should be determined through laboratory testing and machine trials.

How does JH-611 perform under high humidity?

It forms a compact cross-linked waterproof film that prevents paper softening and structural collapse under high humidity storage and transportation.

Inquiry Information

For samples, technical data, or pricing, contact our international sales team:

Email: info@sdqzjinhao.com | WhatsApp: +86 139 6468 8976

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Images

Main product image: JH-611 brown liquid drum (image id 15). Application scenario: paper machine sizing operation (image id 82). Sizing film formation on paper web (image id 108).