The raw materials of the bone china cup are herbivore bone meal (bovine bone meal is the best) and the pottery raw materials are made by firing high-temperature biscuit and low-temperature glaze twice. Only those with more than 25% bone powder in the raw materials can be called bone china cups, and those with more than 43% bone powder can be called high-quality ceramic tableware
cups. The high-quality bone china cup is milky white in color, high in regularity, transparent and light as a whole, with few flaws, low water absorption and easy to clean, so it has a unique sense of cleanliness. There are some fake bone china cups on the market, such as new bone china cup and low ceramic tableware cup, so let's talk about the difference between real and fake bone china. In terms of color, high-quality bone china cups are milky white, while ordinary bone china cups are milky yellow (the kind of bone), and fake bone china cups are bright white (white dazzling) or dark yellow. Someone used to say that rubbing the edges of bone china cups with water can be judged based on what happened. In fact, this method is not feasible, because true and false will make a buzzing sound. Then talk about simple discrimination. One is light transmittance. The high-quality bone china cup is transparent as a whole. When illuminated by a lamp, the whole vessel is translucent and translucent. The light that passes through is white light (illuminated with normal white light, such as flashlights, mobile phone flashlights, etc.), which can be used as lampshades; The light transmittance of the cup is part of it, that is, part of the vessel is transparent, part of the opaque, and the cast light is yellow. Ordinary bone china cups are also part of the light and part of the opaque, but the light-transmitting parts are very light. Transparent, the color of the passing light remains white and does not change color. Simply put, the high-quality bone china cup is transparent as a whole, while the fake one is partly transparent and partly impenetrable. The second is the sound. There is a finger flicking the utensil (or tapping the utensil with something). If it is a high-quality ceramic tableware cup, the sound is similar to a bell ringing and the echo is clear, and the echo time is long; There is no echo. In view of two points, it is possible to distinguish true and false bone china cups. High-quality bone china cups are environmentally friendly products and do not contain heavy metals such as lead and cadmium. The new bone china cup uses chemical synthetic materials instead of bone meal. Although it has a certain degree of light transmission, it is not a bone china cup.
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