Paper Grade Sodium Carboxymethyl Cellulose
Specification of Product
Product Name : Paper Grade Sodium Carboxymethyl Cellulose
Sodium CMC
CAS No.: 9004-32-4
Chemical formula: [C6H7O2(OH)x•(C2H2O3Na)y]n
Paper Grade Sodium Carboxymethyl Cellulose Functions:
CMC (Carboxymethyl Cellulose) is a versatile additive widely used in the paper and paperboard industry. It provides excellent properties including adhesion, thickening, emulsification, suspension, flocculation, film formation, colloid protection, water retention, chemical stability and strong affinity with pulp fibers.
In papermaking, CMC improves paper strength, toughness and uniformity. It helps fibers and fillers disperse evenly in the pulp, enhances surface strength and smoothness, improves pigment dispersion and printing effect, and optimizes coating rheology and water retention. It also delivers better whitening and hue improvement compared with starch and polyethylene glycol, making it a highly functional paper chemical.
Main Applications
1. Coating Preparation
CMC improves coating water retention, rheology and pigment dispersion. It increases coating solid content, enhances binding strength, reduces adhesive dosage, lubricates blades, improves coating smoothness and minimizes orange peel defects.
2. Wet-End Addition
CMC strengthens fiber bonding, improves paper strength, enhances internal sizing performance and promotes fiber dispersion. It also improves retention of fines and fillers, reduces white water concentration and protects the sizing agent system.
3. Beating Optimization
CMC improves fiber lubrication and promotes fiber swelling and fibrillation. It helps maintain fiber length, increases water retention value and reduces refining energy consumption.
4. Surface Sizing
CMC forms a uniform and continuous film on the paper surface. It improves surface strength, printability, air permeability and oil resistance, and reduces surface picking and curling.
5. Other Applications
Filler modifier for improved filler-fiber bonding and optical properties
Flocculant for wastewater treatment, reducing turbidity and COD
Special paper strength agent and surface sizing agent
Wet-end strength agent for tissue and towel paper
Uniformity improver for filter rod paper
Strength and absorbency enhancer for tobacco sheet base paper
Key Benefits
Improves paper strength, smoothness and uniformity
Enhances coating water retention and runnability
Reduces refining energy and adhesive consumption
Improves filler and fines retention
Optimizes printability and surface quality
Suitable for coating, wet-end, beating and surface sizing systems
Ming Grade Sodium Carboxymethyl Cellulose Packaging & Storage:
25 kg/bag.
Stored in dry and ventilation place, far from heat and water.
