Are there double-layered ceramic water cups on the market?

The water cups on the market are composed of a variety of materials, in addition to stainless steel water cups, plastic water cups, glass water cups, and ceramic water cups. At present, stainless steel water cups, plastic water cups and glass water cups all have double-layer structure water cups, so do ceramic water cups have double-layer structure?In people's impression, ceramic water cups are single-layered, such as ceramic mugs, bone china tea cups, etc., these water cups are single-layered.

There are several reasons why ceramics are made into a single layer:

1. The carcass of the ceramic cup represented by bone china is thin, if it is easy to break, the main reason is the lack of hardness due to the porcelain firing process.

2. The carcass represented by coarse porcelain is too heavy.If it is fired into a double layer, the water cup will be heavier, inconvenient for daily use, and even more inconvenient to carry around.

3. The firing process is complicated,Unlike single-layer embryos, double-layer embryos have stricter requirements on temperature and time. At the same time, the kiln must be changed differently.

4. Caused by people's daily life habits.Usually people use ceramic cups in one environment, and few people travel with ceramic cups.

However, with the continuous research and development of the water cup factory and technological breakthroughs, the current double-layer ceramic water cup has appeared in the market. The double-layer ceramic water cup not only improves the uneven heating during firing, but also increases the hardness of the embryo body through the preparation of materials, and reduces the weight of the embryo body. Such a double-layer ceramic cup is stronger and lighter than the traditional ceramic cup, and at the same time, due to the double-layer reason, it can play a certain role in heat preservation than the single-layer.

They are all stainless steel water cups. Why do some of them turn black after using for a period of time? Some will not turn black?

The thermos cup produced by Dongguan Zhanyi Commodity Technology Co., Ltd. uses sufficient materials and exquisite workmanship. In terms of material, we insist on using food-grade 304 stainless steel inside and outside, or a combination of 304 stainless steel outside and 316 stainless steel. The heat preservation time can reach 8 hours, and the cold preservation time can reach 12 hours. We insist on using the AQL1.0 inspection standard, which is far higher than the peer standards, and all links adopt a full inspection system to ensure that each product is a high-quality product. Customers from all over the world are welcome to visit our factory for inspection, and welcome to place orders for cooperation.