The preparation technology of microcapsules originated in the 1950s. In 1954, the NCR company in the United States first introduced the first generation of carbonless copy paper made by microcapsules to the market, creating an era of new microcapsule technology. In the 1960s, due to the use of phase separation technology to encapsulate substances in polymer materials, microcapsules capable of releasing drugs at regular intervals were made; the development of microcapsule technology was promoted; In the 1970s, the process of microcapsule preparation technology became more and more mature, and the application range was gradually expanded. The diameter of microcapsule products was generally 5~250μm; Since the 1980s, research on microcapsule technology has made greater progress. Not only has many new patents for microcapsule synthesis technology been published, but also nanocapsules with a particle size in the nanometer range have been developed. The application range of microcapsules has expanded from the initial drug coating and carbonless copy paper to pharmaceutical, food, pesticide, feed, paint, ink, adhesive, cosmetics, detergent, photographic materials, textile and other industries. Applications. In recent years, many functional microcapsules have emerged, such as the phase change material microcapsule referred to as MEPCM, which is a core-shell structure composed of a microcapsule technology coated with a stable membrane on the surface of solid-liquid phase change material particles. A composite phase change material that absorbs or releases heat as environmental conditions change. It has good application prospects in textile, construction, military, daily necessities and agriculture; functional biological bacteria microcapsules can realize selective release and controlled release of microcapsules, and are also obtained in medicine, food, pesticides, etc. A wide range of applications. The microencapsulation method has been developed in different technical fields, and has become more and more in all aspects of production and life. As a high-tech, it has become a hot topic for scholars from all over the world. Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com