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Let The Color Have The Universal Digital "Identity Card".

2020/1/13 11:51:00 0

ColorGlobalDigitalIdentity Card

China red, Tiffany blue, Starbucks green... These well-known colors have become brand awareness of consumers. For textiles, color is the core element of expressing individuality and fashion culture. Color application, quality control and communication run through the value chain of the entire textile. However, in textile design and production, how to achieve efficient, precise control and digital transmission of fabric color has become a big problem. Zhang Ruiyun, Professor of the Textile Institute of Donghua University, has injected new kinetic energy into the textile industry with color digitalization technology, helping to upgrade the textile industry intelligently. The key technology and industrialization of textile fabric color has been awarded the two prize of national science and technology progress in 2019.

Color digitalization, as the name suggests, is to use data to give color a globally recognized ID, like the "identity card" of color. Professor Zhang Ruiyun told reporters that we should not underestimate the color. Although the color is visible, it is difficult to distinguish it from the naked eye or to express it accurately in language. The same fabric color, different people will have different perception effect. The material and structure of the fabric will also have a great influence on the color of the fabric. In the interview, Professor Zhang pointed to a white down jacket on his body, saying that light is the simplest white. Because of the different spectral reflectance, there are hundreds of different white colors. How can the textile enterprises accurately distinguish them?

As a big country in textile industry, China's annual textile production reaches about 100000000000 meters. However, in the development of fabric, the expression of color depends on the experience of factory teachers. The development cycle of fabrics needs seven to eight days because of the need of artificial color matching and physical samples.

In the face of this common problem in textile enterprises, Professor Zhang Ruiyun began to explore from the source, independently developed the reflectance spectrum system and the high coverage color gamut system of the full spectrum dyes, and created a spectral matching model of mixed color and monochromatic, which ensured the high matching of mixed color samples and monochromatic materials. Hard work and painstaking efforts, the team developed innovative yarn and fabric precise color matching technology, not only achieved the prediction of fabric color, but also increased the accuracy of color matching at the same time by more than 95%.

"The key technology and industrialization of textile fabric color digitalization" is also of great use. It is said that seeing is believing. Color recognition and communication are essential in the production process of textile enterprises. With the acceleration of globalization, Chinese textile enterprises have set up R & D institutions and production bases in the United States, Vietnam and other parts of the world. How to transmit fabric samples and send samples only by EMS is not only difficult to achieve rapid response, but also difficult to get color accurately read by geographical and equipment differences. When the business side placed this difficult problem in front of Professor Zhang Ruiyun, she took the responsibility without saying anything.

Zhang Ruiyun rushed to the production line in Shanghai and Shandong to do research, and then returned to the lab to test the data over and over again. We should know that the structure, texture and material of fabric will affect the simulation and rendering of color. Many experiments are failures. "Zhang led the team to carry out scientific research work that" paranoid "strength is admirable," textile material and textile design 2017 level graduate student Xu Lu told reporters that behind the big data is boring and complex work, Zhang's rigorous, meticulous and meticulous academic attitude affects people around him. Under her leadership, the team conquered the technical bottleneck, developed a virtual prototype instead of physical processing of the high simulation system, and solved the problem of consistency of color transmission and reproduction of different media fabrics.

Finally, the digital cloud fabric high efficiency cloud platform constructed by the project integrates digitalization, networking and intelligentization. The design and information database with high reduction and high information capacity is used instead of physical objects for storage and transmission. It realizes the opening, sharing and collaborative innovation of the textile upper and lower reaches industrial chain and cross regional production enterprise resources, and realizes the digital transmission of colors between the global production factories and important customers, and promotes the development of the global industrial chain layout of the textile industry.

Talking about the experience of winning this prize, Professor Zhang Ruiyun summed up the secret of winning two words: cross boundary. The reporter learned that Professor Zhang Ruiyun was admitted to Donghua University in 1987 (the name of China Textile University). His undergraduate course was a textile design major. When he studied master's degree, he turned his research direction into CAD direction of clothing. While studying doctorate, his research direction extended to the application of computer graphics and image technology in textile. It is this interdisciplinary academic background that opens up a new world of research and exploration for her, so that she can play "digitalization", and hold can get "color". Finally, she has played a unique advantage in capturing the key technology of fabric color digitalization.

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