JPH0636873Y2 - Color changing cup toys - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a color changing cup toy. More specifically,
By injecting cold water or hot water, the cup is color-changed to a color similar to the color unique to the beverage liquid selected from coffee, tea, fruit juice beverages and other colored beverages, and the appearance that the beverage liquid is injected is simulated. The present invention relates to a color-changing cup toy configured to be visually recognized.

2. Description of the Related Art Conventionally, several proposals have been made regarding beverage containers with a temperature-sensitive mark (Japanese Patent Laid-Open No. 59-62451, Japanese Utility Model Laid-Open No. 59-12694).
0, Japanese Utility Model Publication No. 62-179935, etc.).

The container of each of the above publications is constructed so that the temperature-sensitive layer is discolored so that the liquid temperature, the filling amount, etc. of the contents can be visually recognized from the outer surface of the container.

Problems to be solved by the invention Although the above is a functional cup that focuses on detection of liquid temperature, filling amount, etc., the present invention focuses on the magic property and toy property due to color change, and plays with the infant as it is. The present invention intends to provide a suitable color change cup toy.

Technical Means for Solving Problems A cup of the present invention will be described with reference to the drawings.

The cup 1 of the present invention is a double-walled cup in which an opaque outer container 4 is united with a transparent plastic inner container 2,
A reversible temperature-sensitive color change layer 3 is provided on the inner surface of the inner container 2 (on the side that does not come into contact with the liquid), and the color change layer 3 reversibly changes a color similar to the unique color of a specific beverage liquid by changing the temperature. It is a layer that is set so that it can be hidden, and it is required that the layer be configured to simulate the appearance as if a specific beverage liquid was injected by injecting cold water or hot water.

In the above, the inner container 2 is a transparent container formed by injection molding of a thermoplastic resin, etc., and is relatively thin (generally 0.1 mm to 3 mm) in terms of heat transfer efficiency to the temperature-sensitive discoloration layer 3. It

The outer container 4 is an opaque container such as a plastic molded body or an aluminum molded body in which a pigment is blended, and is formed to have an inner diameter that is equal to or slightly larger than the outer dimension of the inner container 2.

The thermochromic layer 3 is a conventionally known thermochromic material, for example, an electron-donating color-developing organic compound, a developer of the compound, and a color-changing temperature controlling agent that determines the temperature at which the color reaction of both of the compounds occurs. A thermochromic pigment comprising a component or a pigment exhibiting reversible thermochromic properties in the form of fine particles of a resin solid solution of the component, which has been previously proposed by the present applicant as a suitable example, JP-B-51-35414 , JP-B-51-44706, JP-B-52
The thermochromic materials disclosed in JP-A-47764, JP-B-51-35216 and the like can be used. Specifically, it is formed by directly adhering to the inner surface of the inner container by means of coating, spraying, dipping, or the like, which is prepared by blending the conventional thermochromic material in a medium in which a fixing resin is dissolved, and then drying. it can. Further, the thermochromic pigment can be blended with the molding resin of the inner container to be molded.

The temperature-sensitive discoloration layer 3 is either cold water (generally 15 ° C. or lower) or warm water (generally
(35 ℃ ~ 55 ℃) is a layer that reversibly develops a color similar to that of drinking liquid by temperature change due to injection, and not only colorless and colored changes, but also colored and multi-stage changes are effective.

Action The temperature-sensitive discoloration layer 3 develops at the same time when cold water or hot water is injected into the cup and has a color unique to a particular liquid drink (for example, brown for coffee, black tea for tea, lemon color for lemon juice). , Etc.) to visualize a color similar to that under the injection surface (A),
In addition, it simulates the appearance that a specific liquid drink has been injected. Since the color change is reversible, the state change is repeatedly reproduced.

The outer container 4 and the inner container 2 cover the temperature-sensitive color-changing layer 3 to prevent the color-changing layer from peeling off or deteriorating its function, thereby maintaining its function. Since the outer container 4 is opaque, it improves the visual efficiency of discoloration inside the cup.

Example 1 A transparent inner container 2 was formed by injection molding of styrene resin, and an opaque outer container 4 was formed separately from the high impact styrene resin filled with a white pigment.

The inside of the transparent inner container 2 (side surface and bottom surface on the side that does not come into contact with liquid) is dark brown at 10 ° C or lower, and a reversible thermochromic paint that changes to colorless at a temperature above 10 ° C is applied, dried and temperature-sensitive. After forming the color-change layer 3, the cup 1 was created by inserting the color-changing layer 3 into the outer container 4 and joining the openings. In the normal state, the inside of the cup 1 is visually white, but when cold water (10 ° C or less) is injected, the inside of the cup under the liquid injection surface (A) changes into a dark brown appearance, and the coffee is The appearance as if injected was simulated.

Example 2 Using the inner container 2 and the outer container 4 of Example 1, a thermochromic paint having a discoloration point at 40 ° C., which is reversibly discolored to dark green below the temperature and brown above, is applied and dried. Then, a cup 1 was prepared in the same manner as in Example 1. In the normal state, the cup 1 is visualized as a dark green state inside the cup, but when warm water (40 ° C. or higher) is injected, it changes to brown, and the appearance as if coffee was injected is simulated.

Effect of the Invention As described in the above examples, by injecting cold water or hot water, the temperature-sensitive color changing layer below the liquid injection surface is discolored to develop a color similar to the color of a specific beverage liquid, and the color The change is visible through the inner container, and the appearance is as if the specific liquid drink had been injected, and the subtlety of the color change is effectively visualized, and it is suitable as a novel plaything toy for infants.

In addition, since the temperature-sensitive discoloration layer is in a covered state, it is possible to prevent deterioration of the fastness such as peeling and deterioration of the discoloration function, and it is possible to maintain the function for a long time, and the reversibility of the discoloration layer. Combined with this, it is possible to satisfy repeated practicality.

[Brief description of drawings]

FIG. 1 is a perspective view of a cup of the present invention, FIG. 2 is a perspective view showing a state when cold water is poured into the cup, and FIG. 3 is a partially enlarged sectional view of a cup wall. 1 ... Cup 2 ... Inner container 3 ... Temperature-sensitive discoloration layer 4 ... Outer container A ... Liquid level

Claims (1)

[Scope of utility model registration request] 1. A double-walled cup in which an opaque outer container is united with a transparent plastic inner container, wherein a reversible temperature-sensitive color changing layer is provided on the inner surface of the inner container, and the color changing layer comprises:
A layer that reversibly hides a color similar to the unique color of a specific beverage liquid by changing the temperature, simulating the appearance that a specific beverage liquid was injected by injecting cold or hot water. Color change cup toy configured to make you see visually.