A temperature-changing double-layer glass

Abstract

The invention relates to a commodity cup, in particular to a temperature-changing double-layer glass cup, which consists of an outer cup, an inner cup and a cover, wherein both the outer cup and the inner cup are made of transparent materials; and characters and patterns are formed on the outer wall of the inner cup. The temperature-changing double-layer glass cup is characterized in that temperature-changing coating is arranged on the outer wall of the inner cup and sprayed into the characters and the patterns; and a lower cover is arranged at the neck part of the inner cup and is adhered together with the outer cup through shadowless adhesive. The temperature-changing double-layer glass cup has the beneficial effects that firstly, the temperature-changing coating is sprayed into the characters and the patterns on the outer wall of the inner cup, and then the inner cup is sleeved by the outer cup and is adhered together with the outer cup through the lower cover to form the double-layer cup; and the temperature-changing double-layer glass cup is simple in structure, safe and sanitary in use and low in manufacturing cost and can present a variety of different visual effects after hot water is poured into the cup, so that the aesthetic feeling when people drink is increased, and the consumption demands of different crowds are satisfied.

Description

【Technical field】 [0001] The invention relates to a cup for daily necessities, in particular to a double-layer glass whose pattern and color change with water temperature. 【Background technique】 [0002] The existing double-layer cup is composed of an inner cup, an outer cup and a cover. Both the inner cup and the outer cup are made of transparent materials such as resin. The outer cup can see the words or patterns on the inner cup. Since the outer wall of the inner cup is completely isolated from the outside world and will not be rubbed or scoured, the words or patterns on the outer wall of the inner cup can last for a long time and have an aesthetic or commemorative effect. However, these characters or patterns can only present a single fixed color or pattern. [0003] At present, some double-layer cups spray temperature-changing paint on the outer wall of the outer cup to form characters or patterns. When the water temperature rises, the characters or patterns will show...

AI Technical Summary

Problems solved by technology

[0004] In order to prevent the temperature-changing paint from being worn off, there are double-layer cups where the temperature-changing paint is sprayed on the outer wall of the inner cup, which can maintain the temperature-changing effect for a long time. However, the transparent materials used in this cup are all materials other than glass. There is no technology that can show the temperature change effect on the outer wall of the inner and outer walls of the closed double-layer glass

[0005] Because the double-layer glass needs to seal the inner cup and outer cup and draw out the internal air, the connection technology currently used is heat welding. If the temperature-changing paint is sprayed on the outer wall of the inner cup first, and then the inner cup is welded by traditional heat welding technology If the cup and the outer cup are welded together, the chemical composition of the temperature-changing coating will be completely destroyed, making it lose the temperature-changing function. The temperature is 500C°, the heat conduction function of the glass inner cup will transfer heat to the temperature-changing coating, the temperature-changing coating is heated beyond the maximum temperature value it can withstand, it is burned black, and permanently loses temperature sensitivity

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