Why are the thermos cups we buy mostly cylindrical in appearance?

A friend asked the editor, why are the appearance of the thermos cups we buy mostly cylindrical?Why not make it square, triangular, polygonal or odd?

Why is the appearance of the vacuum flask made into a cylindrical shape? Why not do some design styling drawings?This is going to be a long talk.Since ancient times, when humans evolved to use tools, especially cooking utensils, it was more based on local materials.In the end, it was found that it is the most convenient to use bamboo as a drinking tool for human beings.This has been passed down from ancient times to the present, so ancient inheritance is one of the reasons.

Another reason is that when people began to develop drinking glasses, they found that cylindrical drinking glasses were more ergonomic, not only controlling the flow rate of water when drinking, but also comfortable to hold.The water cup is cylindrical because of the uniform internal force and uniform heat conduction, so it is also the most resistant to falling and the best thermal insulation effect.

The last reason is the processing technology and production costs.In fact, there are still some water cups on the market that are not cylindrical in shape, some are inverted triangular cones, and some are square or flat square, but there are very few thermos cups in this shape.Due to the many production processes of drinking glasses, many of them can only be used in cylindrical drinking glass processors.

If you want to process these special-shaped water cups, you need special equipment, but the market's acceptance of special-shaped water cups is limited, resulting in a small production volume of special-shaped water cups.Under this premise, many factories are reluctant to invest in equipment that specializes in the production of special-shaped water cups, and because the production of special-shaped water cups is difficult and the rate of defective products is high, the single cost is much higher than that of cylindrical ones.This is why there are more cylindrical drinking glasses on the market.

Dongguan Zhanyi Commodity Technology Co., Ltd. mainly produces various types of drinking utensils such as stainless steel water cups, plastic water cups and kettles.Our company has a complete automatic paint spraying and powder coating production line, which can be processed in customized colors according to customer requirements. As of December 2020, we have provided product innovation services to more than 200 customers around the world. Global buyers are welcome to visit our official website, and we will have professional customer service staff online to provide you with services.