Mar 20,2026
With the spring breeze gentle and the scenery bright, participants discussed development and tackled pressing challenges together. On March 18, 2026, a delegation of four—including Tian Chao, Party Secretary and General Manager of the China Pulp and Paper Research Institute; Liu Zhenhua, Editor-in-Chief of China Paper Magazine and Director of the Paper Industry Information Center; Zhang Hongjie, Chief Expert and Director of the Packaging Materials R&D Center in the Research and Development Department; and Li Zheng, Deputy Director of the Paper Industry Productivity Promotion Center and Secretary-General of the Chemicals Special Committee of the China Paper Association—paid a special visit to Hunan Sentai Biotechnology Co., Ltd. The company’s General Manager, Liu Haiyun, and Deputy General Manager, Liu Kun, extended a warm welcome. Joining them were Guo Jianping, Head of Production Technology; Zhou Zhi, Head of the R&D Department; and Xie Aifei. Together, the two sides engaged in in-depth discussions and efficient communication on issues related to the research, development, and production of paper-grade sodium carboxymethyl cellulose (CMC) and sodium carboxymethyl starch (CMS), jointly exploring pathways for optimization and working to elevate industry quality and upgrade the sector.
Mar 26,2026
Spring breezes arrive in Guangzhou, and a grand event is about to begin ✨ The first phase of the 139th China Import and Export Fair (Canton Fair), eagerly anticipated by global trade professionals, will open with great fanfare in April 2026. As a leading enterprise with over two decades of expertise in the cellulose industry, Hunan Sentai stands ready to welcome you to our booth—let’s discuss business opportunities and embark on a new chapter together!
Oct 14,2025
The widespread application of paper-grade CMC
In the modern papermaking industry, the use of chemicals has become an essential means of enhancing paper quality, improving production efficiency, and reducing manufacturing costs. Paper-grade CMC (sodium carboxymethyl cellulose), as a key papermaking additive, is widely employed due to its excellent performance. CMC not only improves the physical properties of paper but also boosts process efficiency and environmental sustainability, meeting the modern paper industry’s demand for high‑quality paper. This article will provide an in-depth examination of the extensive applications of paper-grade CMC. I. Basic Characteristics of Paper-Grade CMC Paper-grade CMC is a water‑soluble polymer obtained through chemical modification of cellulose, exhibiting outstanding solubility, thickening ability, and gelling properties. Its structure contains carboxymethyl (-CH2COOH) groups, which confer excellent water solubility. The molecular weight and degree of carboxymethylation of CMC can be tailored to meet specific requirements, thereby influencing its effectiveness in papermaking. Typically, paper-grade CMC demonstrates favorable rheological properties, enabling efficient control of pulp viscosity and improved processing characteristics of the paper. II. Applications of Paper-Grade CMC in Enhancing Paper Strength One of the primary applications of paper-grade CMC is to improve paper strength. During paper production, the pulp…
Oct 09,2025
Paper-grade CMC: A Key Additive in the Modern Paper Industry
The papermaking industry is one of the key pillars of the global economy, with its products widely used in everyday life and across various sectors. During production, the selection and application of papermaking chemicals play a crucial role. As an important papermaking additive, paper-grade CMC (sodium carboxymethyl cellulose) is extensively employed in paper manufacturing, processing, and post‑treatment stages, thanks to its excellent performance and versatility. This article explores the definition, properties, applications, and future development trends of paper-grade CMC. I. What Is Paper-Grade CMC? Paper-grade CMC is a specialized form of sodium carboxymethyl cellulose (CMC). CMC is a water‑soluble polymer derived from cellulose through chemical modification, exhibiting outstanding solubility, thickening ability, stability, and adhesive properties. In the papermaking industry, paper-grade CMC serves as an additive to enhance paper performance and streamline manufacturing processes. Depending on specific application requirements, CMC varies in molecular weight and degree of carboxymethylation. Paper-grade CMC typically demonstrates superior rheological characteristics, increasing pulp viscosity and processability, thereby improving paper quality. II. Key Properties of Paper-Grade CMC Thickening and Gelling Abilities The thickening properties of CMC enable it to effectively…
Sep 26,2025
Paper-grade CMC: A key additive in the paper industry
In the development of the paper industry, various chemical additives play a crucial role. Among them, sodium carboxymethyl cellulose (CMC) for papermaking, with its unique properties, has become an indispensable key additive in the papermaking process. Paper-grade CMC is a water-soluble cellulose ether obtained through chemical modification of natural cellulose. It exhibits excellent thickening, emulsifying, stabilizing, and binding characteristics, which enable its wide-ranging applications in the paper industry. In terms of paper reinforcement, paper-grade CMC demonstrates outstanding performance. It can form strong hydrogen bonds with paper fibers, enhancing inter-fiber cohesion and thereby improving the paper’s physical strength—such as tensile strength and tear resistance. By adding an appropriate amount of CMC, paper can become tougher and more durable, meeting the varying strength requirements across different applications; for instance, packaging paper demands high strength to protect its contents. During surface sizing, CMC also plays an essential role. When formulated into solutions of specific concentrations and applied to the paper surface, it forms a uniform thin film. This film effectively enhances the paper’s surface properties, improving smoothness, gloss, and printability. Paper that has undergone CMC surface sizing…
Sep 24,2025
Applications and Development Trends of Papermaking-Grade CMC
Paper-grade CMC (sodium carboxymethyl cellulose) is a water-soluble cellulose derivative widely used in the paper industry, primarily serving as a thickener, dispersant, lubricant, and binder, thereby performing crucial functional roles. As the paper industry continues to evolve and environmental regulations become increasingly stringent, paper-grade CMC plays an ever‑more important role in production processes. Basic Characteristics of Paper-Grade CMC Paper-grade CMC is a chemical product formed by reacting natural cellulose—typically wood pulp or cotton—with chloroacetic acid. It exhibits excellent water solubility and high viscosity, effectively enhancing pulp processing performance while improving paper quality and stability. Its chemical structure contains abundant carboxyl groups (–COOH) and hydroxyl groups (–OH), which confer outstanding adhesion, dispersibility, and thickening properties. Application Areas of Paper-Grade CMC Thickener and Binder: In papermaking, CMC is frequently employed as both a thickener and a binder. As a thickener, it increases pulp viscosity, improving flowability during processing and preventing pulp separation; as a binder, it strengthens the inter-fiber bonds, enhancing the paper’s strength and toughness. Dispersant:
May 29,2024
Hunan Sentai invites you to watch the 2024 Guangzhou International Paper Exhibition
Hunan Sentai Biotechnology Co., Ltd. (hereinafter referred to as: Hunan Sentai), booth number A30. This exhibition will bring independent research and development of paper-making grade series of sodium carboxymethyl cellulose (CMC), sodium carboxymethyl starch (CMS) and other products. The company has excellent equipment and technology, complete testing equipment and perfect quality system. Because the products have the advantages of stable viscosity, low addition amount and excellent processing performance, the product quality is in the leading level in China. At present, the production capacity of the device is CMC10000 tons/year and CMS5000 tons/year.
Mar 14,2024
The 13th Shanghai International New Energy Lithium Battery Technology Exhibition Grand Opening
The role of CMC in batteries: 1. Improve the stability and fluidity of water-insoluble materials dispersed in solution; 2. Dispersion effect on negative electrode active materials and conductive agents; 3. Bonding and protecting active substances; 4. Prevent precipitation of active substances; 5. Stabilize the processing performance of the electrode and improve the charge and discharge performance of the battery; 6. Stabilize the structure of the pole piece and improve the peeling strength of the pole piece.
Mar 12,2024
The company has excellent equipment and technology, complete testing equipment and perfect quality system. The products are widely praised for their stable viscosity, low addition amount and excellent processing performance. At present, the production capacity of the plant is CMC10000 tons/year and CMS5000 tons/year.
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cmc@xtsentai.com
Address： Wujiaxiang Industrial Park, Tianyi Demonstration Zone, Xiangtan, Hunan
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