在双碳目标引领下，造纸行业正加速向低碳化、高性能化、功能化方向转型。 As a nanofunctional material derived from natural biomass, nanocellulose has become an important new functional additive and reinforcing substrate in the paper industry due to its renewable, biodegradable, excellent mechanical strength, large specific surface area, and outstanding film-forming barrier properties. It provides new solutions for improving quality, reducing costs, and green transformation of special paper, packaging paper, cultural paper, coated paper, and other categories.

Nanocellulose uses wood pulp and agricultural and forestry biomass fibers as raw materials. It is disassembled to the nanometer scale through mechanical dissociation, enzymatic hydrolysis or chemical modification processes. It is mainly divided into two mainstream categories: cellulose nanofibrils ( CNF ) and cellulose nanocrystals ( CNC ). The raw materials are derived from plant fibers, which are the most abundant natural polymers on the earth. Different from petroleum-based chemical additives, they are low-carbon, environmentally friendly, and fully in line with the development direction of clean production and circular development of the papermaking industry.

Core features (papermaking application dimension)

1. Excellent paper reinforcing effect, improving strength index. Nanocellulose has ultra-high aspect ratio and tensile modulus, and the fibril size reaches the nanometer level. During the paper sheet forming process, it can be filled between the interwoven pores of ordinary wood pulp fibers, like ' nano bonds ' , entangled with native fibers to build a denser network structure.少量添加即可显著提升纸张抗张强度、耐破度、撕裂度、耐折度。在不增加阔叶浆、针叶浆配比的前提下，实现强度升级，帮助工厂节约优质长纤维木浆，降低原料成本。

2. Good retention and filtration aid effects, improved paper making performance. Charge-modified nanocellulose has good retention and filtration aid potential. It can cooperate with fillers and fine fibers to increase the filler retention rate, reduce the loss of fine fibers in white water, and reduce the loss of raw materials. At the same time, it optimizes the dehydration characteristics of wet paper sheets, improves water filtration in the mesh within the appropriate addition range, reduces white water load, and reduces sewage treatment pressure.

3. Excellent film-forming barrier properties, suitable for packaging paper needs. Nanocellulose can form a dense, uniform, and continuous transparent film, with excellent oxygen, oil, and water vapor barrier capabilities. When used for surface coating of paper, a layer of bio-based barrier coating is constructed on the surface of the paper base to replace some plastic coatings and petrochemical barrier additives, and develop plastic-free degradable oil-proof packaging paper and food packaging paper to help achieve ' plastic reduction ' in packaging and meet the environmental compliance requirements of food contact paper.

4. Delicate homogenization to improve paper quality and printability. Nanofibers can fill in the tiny pits and pores on the paper surface, reduce the surface roughness of the paper, and improve the smoothness and tightness of the paper surface. It is used in coating formulas to improve the coating structure, make the coating layer more uniform, improve the ink absorption uniformity and printing clarity of the paper, and reduce printing white spots and missing printing problems. It is suitable for high-end cultural paper, label paper, and special coated paper.

5. It can be modified and customized to adapt to different papermaking process systems. The surface of nanocellulose is rich in hydroxyl groups, and can be modified by carboxylation, sulfonation, etc. to control charge, dispersion, and hydrophilic properties. It can be adapted to different acidic, neutral, and alkaline papermaking systems. It has good compatibility with conventional papermaking chemicals such as starch, AKD 、ASA , and calcium carbonate fillers, and requires little process modification, making it easy to put existing paper machines directly online for trial use.

Main application scenarios in papermaking field

✅Packaging paper, boxboard paper, and corrugated base paper are added to the pulp to improve the ring compressive strength and bursting strength, while reducing the amount of long fibers while ensuring the load-bearing performance of the carton; surface coating is used to prepare a degradable barrier coating to produce plastic-free, oil-proof, waterproof express packaging paper, and food lunch box base paper, replacing PE coating.

✅Special paper (filter paper, insulating paper, medical packaging paper, label paper) is used for filter paper to optimize the pore structure, improve filtration accuracy, and enhance paper toughness; it is used for electrical insulation paper to improve insulation stability and mechanical strength; food and medical packaging special paper relies on the advantages of degradability, safety and non-toxicity to meet high standards of contact material requirements.

✅ Internal reinforcement for cultural paper and coated printing pulp to improve the folding resistance and strength of tissue paper and high-end writing paper; as a coating additive, it improves coating stability and paper surface smoothness, optimizes printing effects, and reduces the risk of paper breaks.

✅With a reasonable ratio of tissue paper and toilet paper , it can ensure softness while improving wet strength, reducing tissue paper chipping and hole problems, and improving product quality.

✅New paper-based functional materials are used as substrates to prepare full cellulose composite films and aerogel paper-based materials, expanding papermaking enterprises into high value-added new materials, and getting rid of the low-price involution of traditional bulk paper.

Our solution

Nanjing Tianlu Nanotechnology is deeply engaged in the modification and application development of nanocellulose . It has specially developed two series of nanocellulose products ( CNF/CNC ), including in-pulp addition type and surface coating type, for the papermaking industry. It can provide customized modified products according to paper type, paper machine technology and customer index requirements.

We support papermaking application process technology, provide sample papermaking testing, adding solution debugging, and assist customers in verifying: wood pulp saving ratio, strength improvement, barrier effect, white water change and other key indicators. Help paper-making enterprises implement low-cost implementation in existing production lines, achieve paper quality improvement, save wood pulp, and plastic-free barrier upgrades, and create green paper products that comply with the dual-carbon trend.

Relying on a stable dispersion process, the product has good dispersion and is not easy to agglomerate. It is suitable for continuous papermaking and online coating processes, and provides a stable and reliable bio-based raw material solution for new product development and process upgrades of papermaking companies.