XU Dayu ^{1, 2}, CHEN Feng ³, ZHANG Kan ^{1, 2}, AO Min ^{1, 2}, DAI Yapeng ^{1, 2}

(1. Ceramic Research Institute of Light Industry of China, Jingdezhen 333000, Jiangxi, China; 2. National Quality Supervision and Inspection Center for Ceramic Products of China (Jiangxi), Jingdezhen 333000, Jiangxi, China; 3. Beijing Onrol Technology CO., Ltd., Beijing 100035, China)

Abstract: The detection of the release of lead and cadmium from ceramic flatware involves the calculation of the reference surface area in contact with food simulant. The accuracy of the surface area calculation is related to the accuracy of the detection results. The surface area of some round and regular flatware can be easily obtained, but the surface area of some irregular flatware such as spoons and chopsticks cannot be easily measured by conventional measuring tools. Taking the spoons as examples, this paper proposes to measure the surface area by using the 3D scanning technology, establish a three-dimensional model through the 3D scanning of spoon products, and then calculate the data of the three-dimensional model through the software Artec Studio, thus obtaining the surface area of the spoons. The calculation results are accurate and reliable. Through the research in this paper, a feasible measurement method is provided for the surface area of irregular ceramic flatware.
Key words: ceramic flatware; calculation of the reference surface area; 3D scanning technology; release of lead and cadmium