Carboxymethyl Cellulose (CMC) for Papermaking from Qingdao Unionchem Co., Ltd. is a high-efficiency, water-soluble cellulose ether designed to improve paper quality and production efficiency. As a versatile papermaking additive, CMC enhances dry and wet strength, increases surface sizing, improves printability, and optimizes retention and drainage in the papermaking process. Produced under strict ISO-certified quality control, Unionchem CMC is trusted by leading paper mills worldwide for consistent and superior results.
Enhances Paper Strength
Increases both dry and wet strength, improving the performance of tissue, printing, and packaging papers。
Superior Surface Sizing
Forms a uniform film on paper surfaces, enhancing printability, ink absorption, and smoothness。
Improved Retention & Drainage
Boosts the retention of fines and fillers, optimizing yield and reducing raw material costs。
Excellent Dispersibility
Dissolves rapidly in water and disperses evenly in pulp, ensuring consistent quality。
High Purity & Low Impurity
Low ash and heavy metal content, suitable for food contact and specialty papers。
Over 15 years of cellulose ether manufacturing expertise
ISO-certified production and strict quality control
Customizable grades for tissue, printing, packaging, and specialty papers
Professional technical support and process optimization
Fast global shipping and flexible packaging solutions
Free samples and complete technical documentation
Q1: What is the main function of CMC in papermaking?
A1: CMC enhances paper strength, surface sizing, printability, and retention of fines and fillers in the papermaking process.
Q2: Which types of paper can benefit from CMC?
A2: CMC is suitable for tissue, printing, writing, packaging, specialty, and food-grade papers.
Q3: How does CMC improve printability?
A3: CMC forms a smooth, uniform surface film, improving ink absorption, print clarity, and reducing ink bleed.
Q4: What is the recommended dosage in papermaking?
A4: Typical dosage is 0.2–0.8% based on dry pulp. We provide technical guidance for your specific process.
Q5: Can you provide technical and regulatory documents?
A5: Yes, we supply COA, MSDS, TDS, and offer technical support for your production and compliance needs.
| Parameter | Specification |
|---|---|
| Appearance | White or off-white powder |
| Purity (%) | ≥ 99 |
| Viscosity (2% sol., 25°C) | 300–2000 mPa·s (customizable) |
| Degree of Substitution | 0.6–1.2 |
| pH (1% solution) | 6.5 – 8.5 |
| Loss on Drying | ≤ 10% |
| Ash Content | ≤ 8.0% |
| Heavy Metals | ≤ 20 ppm |
| Certification | ISO, Papermaking Grade |
Detailed COA and technical documents available upon request.
1.Tissue & Towel Paper
Improves softness, strength, and absorbency for premium tissue products。
2.Printing & Writing Paper
Enhances surface sizing, printability, and ink holdout for high-quality prints。
3.Packaging Paper & Board
Increases dry and wet strength, supporting better folding, cutting, and durability。
4.Specialty & Food-Contact Papers
Provides safe, consistent performance for specialty grades and food packaging。
Looking for a reliable supplier of CMC for papermaking?
Contact Qingdao Unionchem today for free samples, technical support, and competitive pricing!
[Email: sales@unionchem.com.cn]
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[WhatsApp/WeChat: +86-13953383796]