Thermochromic coating and thermochromic container

Abstract

The invention discloses a thermochromic coating and a thermochromic container. The thermochromic coating is prepared from the following raw materials in parts by mass: 100 parts of water-based resin, 10 to 50 parts of a thermochromic toner, 10 to 50 parts of a common toner, 0.5 to 0.9 part of a dispersing agent, 0.5 to 1 part of a defoaming agent, 1.5 to 2.5 parts of an adhesion promoter and 20 to 50 parts of water. The thermochromic container comprises a container body, a thermochromic layer arranged on the surface of the container body, and a transparent protective layer arranged on the thermochromic layer; the thermochromic layer is obtained by drying and curing the thermochromic coating; the transparent protective layer is obtained by drying and curing a transparent coating. The thermochromic coating and the thermochromic container are rich in color change; diversified patterns are arranged on the container; a preparation process is simple; the thermochromic layer and the container body are closely combined and difficult to fall off; furthermore, the transparent protective layer is arranged on the outermost layer of the container, so that the durability of the color and the pattern on the surface of the container can be guaranteed.

Description

technical field [0001] The invention relates to a temperature-sensitive color-changing paint and a temperature-sensitive color-changing container. Background technique [0002] Thermochromic paint is a paint that changes color as temperature changes. The reason for the color change is that thermochromic paint is added with thermochromic toner. Temperature-sensitive color-changing paint is often used to prepare color-changing cups, also known as magic cups, which can usually be divided into cold color-changing cups and thermal color-changing cups. Generally, cold color-changing cups use color-changing materials that change at 7-17°C, and they will change color when the temperature is lower than this temperature; while thermal color-changing cups generally use color-changing materials that change at about 40°C, and they will change color when the temperature is higher than this temperature. The current color-changing cups have a single color change, and usually only one color...

AI Technical Summary

Problems solved by technology

The current color-changing cups have a single color change, and usually can only change from one color (black, red, blue, etc.) to transparent (showing the background color), which is relatively monotonous and not very interesting.