At a critical juncture in the packaging industry's transition to low-carbon and degradable packaging, nanocellulose has become the core breakthrough to solve the industry's pain points by virtue of its natural properties and extraordinary performance at the microscopic scale. It has the advantages of high strength, high barrier, and full degradation. There is no need to choose between environmental protection and practicality, and it is promoting the green packaging industry to achieve a qualitative leap. Among them, Nanjing Tianlu Nano Technology Co., Ltd. is deeply involved in this field, focusing on the research and development, production and sales of nanocellulose. It uses mature technology and large-scale production capacity to help its industrialization and application upgrade in the field of green packaging. 1. Core characteristics of nanocellulose Nanocellulose is a nanoscale fiber aggregate separated from natural plant raw materials such as wood and straw through processes such as chemical hydrolysis and mechanical grinding. It mainly includes cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF). Its core characteristics perfectly meet the needs of packaging materials: • Ultra-high mechanical properties: Young's modulus can reach 140

With the deep integration of materials science and optical engineering, nanocellulose has become the core substrate for building high-performance structural color materials by virtue of its natural nanoscale, excellent self-assembly properties and green sustainable attributes, bringing revolutionary breakthroughs to the fields of anti-counterfeiting, optical films, flexible displays and other fields. As a natural polymer material derived from biomass such as wood, cotton, and straw, nanocellulose not only inherits the environmental protection genes of biomass, but also solves the industry pain points of traditional chemical dyes that are easy to fade, highly polluted, and difficult to control with its unique microstructure. 1. Nanocellulose: Natural green nanomaterial Nanocellulose is a nanoscale cellulose material prepared from natural biomass through physical, chemical or biological methods. It is mainly divided into two categories: cellulose nanocrystals (CNC) and cellulose nanofibers (CNF). Its core characteristics lay the foundation for structural color construction: Nanoscale and high aspect ratio: CNC diameter is about 5-50

In the wave of global green and low-carbon transformation and new material technology innovation, a new type of material derived from nature, high performance and environmentally friendly, nanocellulose, is gradually entering the public eye and becoming the 'green key' to promote the upgrading of many industries. As the most abundant natural polymer material in nature, cellulose, after being modified at the nanoscale, has excellent properties that far exceed those of traditional materials. It shows broad application prospects in many fields such as lithium batteries, packaging, biomedicine, and papermaking, and also injects new momentum into the high-quality development of enterprises. 1. Understanding nanocellulose: The 'nanomiracle' gifted by nature, nanocellulose (Nanocellulose), is a linear material with a diameter of several nanometers to tens of nanometers, a length of tens of nanometers to several micrometers, and a certain aspect ratio. It is made from natural cellulose as raw material and processed through physical, chemical or biological methods [1]. Its English name is nanocellulose, as