Papermaking Grade CMC

The Role of Paper-Grade CMC

In Coatings:
CMC possesses water-retention capacity, improving the rheological properties and water retention of coatings;
It improves paper color and the retention rate of whitening agents in paints;
It increases coating content and coating quality;
It makes paper coatings smoother and brighter.

In Pulp:
CMC interacts with the fibers in paper, enhancing the physical strength of the paper;
It promotes paper forming;
It improves paper uniformity.

In Surface Size Analysis:
It can act as a dispersant, maintaining the stability of the entire rubber material and reducing paper porosity;
It increases paper smoothness and gloss;
It improves paper oil resistance and surface strength;
It improves print quality;
It improves abrasion resistance.

Performance Advantages of Paper-Grade CMC

Reinforcing Effect: CMC enhances interfiber bonding, significantly improving paper's dry strength, folding endurance, and bursting strength.

Surface Sizing: In surface sizing, CMC, when used in conjunction with starch, latex, etc., significantly improves paper smoothness and ink absorption, reducing linting and dusting.

Water Retention and Thickening: The hydrophilic groups in CMC's molecular structure lock in moisture, maintaining pulp fluidity and uniformity, and preventing excessive moisture loss during paper forming.

Coating Applications: In coated paper production, CMC can be used as a binder, enhancing the adhesion between pigments and the paper base, resulting in finished paper with higher gloss and printability.

Main Applications of Paper-Grade CMC

* Cultural and Printing Paper: Increases paper strength and writing performance, improving print quality.

* Packaging Paper: Improves burst strength and stiffness, meeting the physical performance requirements of packaging materials.

* Specialty Papers: In the production of specialty papers such as filter paper and cigarette paper, CMC can improve filtration efficiency and combustion uniformity.

* Coated and Artificial Paper: Enhances paper surface smoothness and gloss, suitable for high-end printing.

FAQ

1. Q: In which stages is paper-grade CMC mainly used?
A: Mainly used for surface sizing and coating bonding. It improves paper surface strength and water resistance, enhances printability, and can also be used as a pulp strengthening agent.

2. Q: Will uneven coating or foaming problems occur during high-speed coating?
A: No. Our CMC has good leveling properties and low foam generation, ensuring a uniform and smooth coating and effectively avoiding defects such as orange peel and streaks.

3. Q: Can you provide samples for testing?
A: Of course. We provide free samples for your testing, and our technical team can also assist in optimizing the dosage and application process based on your paper type and equipment.