JPS60158883A - Surface color changeable toy and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface-changing toy whose surface color or pattern can be changed by some external influence, and a method for manufacturing the same.

Hitherto, such surface-changing toys have not been provided on the market.

The first object of this invention is to provide a surface-changing toy that can repeatedly change the surface color, pattern, etc., can have any three-dimensional shape, and has excellent printability of patterns, etc.
It is an object of the present invention to provide a manufacturing method which can easily print patterns, etc., can easily mold three-dimensional toys with many irregularities, and can obtain high production efficiency.

Next, the present invention will be described in detail based on the drawings.

The toy T1 according to the present invention has a toy main body a having a certain shape, and on the surface of the toy main body, a color or pattern b that matches the object expressed by the toy main body is printed,
Roughly speaking, part or all of the surface of the toy body has a color different from the color of the above-mentioned patterns at room temperature to hide the patterns and make them invisible, but when it gets wet with water. , or is heated to a certain temperature, and then coated with a surface layer C that transmits light or decolors when cooled to reveal the above-mentioned pattern.

The toy main body a1 pattern etc. b and the surface layer C will be explained in detail in order.

Toy body a is made by molding each part of a synthetic paper sheet material made of polyvinyl chloride components and pulp components into the desired shape using a vacuum forming method, butting the parts together, and welding the butted parts with a welder. formed by
It has the desired shape. In the embodiments shown in FIGS. 1 to 3, the toy main body a is formed by vacuum forming two left and right parts al and a2 having symmetrical uneven shapes, butted against each other at their peripheries, and welding the peripheries. , with the shape of a fish.

Since the synthetic paper sheet material contains a polyvinyl chloride component, it can be easily molded into a toy body with any shape with severe irregularities using a vacuum forming method. Each part can be easily welded,
By reliably joining, a three-dimensional toy body can be easily obtained.

The surface of the toy body is printed with one type of color, pattern, figure, etc. that matches the object expressed by the shape of the toy body.

Since the synthetic paper sheet material has a pulp component or a pulp layer, printing ink can be easily applied to the synthetic paper sheet material, and the clarity of patterns and the like can be improved. Further, this printing is preferably performed on a synthetic paper sheet material before vacuum forming. This is because it is easy to print since it is printed in a flat state.

Such a synthetic paper sheet material may be formed into a sheet from a mixture of a polyvinyl chloride component and a pulp component, or may be based on a polyvinyl chloride film,
A material with a pulp layer bonded to one or both sides is also acceptable.

d in FIG. 2 shows that a portion a1. a2
This is a cushioning material loaded before welding, and is made of synthetic resin foam, etc., and this cushioning material protects and reinforces the toy main body a by the pressing force applied from the outside.

A surface layer c'h is applied to the upper surface of the toy main body a, which has a certain shape and has a pattern or the like on its surface.

At room temperature, this surface layer exhibits a unique color that is different from the color of the pattern (b) and hides the pattern, etc., but when some external influence is applied, it changes and reveals the pattern etc. It is something that makes you

Such a surface layer can consist, in part, of a water-permeable and water-resistant film coated with a color such as a pattern and a low curvature bevel, such as white. When this surface layer is dry, it does not transmit light and has a high light reflectance, so the surface of toy T1 becomes white and the pattern is hidden, as shown in Figure 1 (a). has been done.

However, if this toy T1 gets wet, for example, by putting it in water such as a bucket or a simple pool when playing with water, or by splashing water on the toy, or by putting it in a bathtub while taking a bath, the surface may become wet. Because layer C transmits light, the surface of the toy,
As shown in FIG. 1 (b), a pattern b appears.

The surface layer C can be formed by mW of a thermochromic dye known under the trade name "Thermochromic Color" as another type. These thermochromic pigments include those that develop color at high temperatures but disappear when the temperature drops below a certain level, and conversely, those that develop color at low temperatures but disappear when the temperature rises above a certain level. All of them are reversible.

Therefore, a toy with this surface layer can be placed in water or blown with cold air to bring the temperature below a specified level, or placed in hot water or blown with warm air to reach a specified temperature or higher. Sometimes the unique color of the surface layer disappears,
Patterns that had been hidden until then (b) come to light.

There are many types of thermochromic pigments that vary in humidity and color, so by combining them depending on the shape of the toy, you can create multiple color changes at a certain temperature, It is also possible to change color in various ways depending on the stage.

Furthermore, in addition to the case where the pattern (b) is colored with a general pigment and the surface layer (C) uses a thermochromic dye, interesting discoloration can be achieved by using a thermochromic dye for the pattern, etc.

Furthermore, it is not necessary to cover the entire pattern (b) with the thermochromic pigment of the surface layer, and when the toy is heated or cooled, some parts of the pattern (b) remain in color and become discolored. It can also be designed to form different patterns.

/ Figure 4 shows that by using multiple types of thermochromic dyes, when cooled, the pattern that makes up the face appears and the toy T2 becomes a simulated snowman, and when heated, the pattern of the face appears. An example is shown in which the two elliptical patterns in the center and the pattern on the periphery are exposed instead, creating a simulated fried egg.

As mentioned above, the toy according to the present invention has a toy body formed by vacuum forming and welding a synthetic paper sheet material made of polyvinyl chloride components and pulp components, so it can be easily manufactured into any three-dimensional shape. It has excellent printing properties such as patterns, and can be played with by repeatedly changing the color and pattern on the surface by adding water and drying, or humidifying and cooling.

The above surface discoloration toy! There are various possibilities for the order of the manufacturing steps. One method is to form the toy body from the synthetic paper sheet 4.A by vacuum forming and welding, and then print patterns and the like and form the surface layer.

However, to explain a preferable manufacturing method, as shown in FIG.
B). Accurate and clear printing is not easy after forming into a three-dimensional object, but since it is done in a flat state, complex, multi-colored patterns can be easily printed. Next, in the second step, each part of the toy body is formed using the printed synthetic paper sheet material S by a known vacuum forming method to provide the desired uneven shape (C).

As the third step, the synthetic paper sheet material processed by vacuum forming is butted against the periphery of each part, and if necessary, cushioning material is loaded and welded with a welder. At the same time, unnecessary parts are removed by thermal cutting. Complete the main body (D).

Then, in the final step, a surface layer is applied to desired positions on the surface of the toy main body T (E).

It is also possible to apply the surface layer after the printing process shown on the left, but this may affect the performance and quality of the surface layer during vacuum forming and welding. As mentioned above, this is preferably carried out in the final step.

As described above, according to the I i =1 method of the present invention, printing of patterns and the like and molding of three-dimensional shapes can be easily performed, and high production efficiency can be obtained.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing an example of the surface state before and after discoloration, FIG. 2 is a sectional view taken along the line ■-■ of FIG. 1, and FIG. is an enlarged view of a part of FIG. 2. FIG. 4 is a side view showing an example of discoloration of another toy. FIG. 5 is a diagram schematically showing the manufacturing process according to the method of this invention. TI, T2...Surface discoloration toy S...Synthetic paper sheet material a...Toy body b...Pattern, etc. O...Surface layer Patent applicant Takara Co., Ltd. Figure 1 Figure 4 Figure 5 Kazuo Wakasugi, Director General of the Patent Office1, Indication of the case Patent Application No. 15573 of 19822, Name of the invention Surface discoloration toy and its manufacturing method3, Relationship with the ministry case making the amendment Name of patent applicant: Co., Ltd. Takara 4, Agent 105 Address Komatsu Building, Shin-m3-15-5, Minato-ku, Tokyo Telephone 437-0380 6. Contents of the amendment as stated in the title column and claims of the application to be amended ( 1) After “1 Patent Application (1)” in the application, “(Patent Law No. 38
(Patent application pursuant to the proviso to Article 1). (2) Add "the number of inventions stated in the claims...2" before "29 inventors" in the application.

Claims (4)

[Claims] (1) A toy body is formed from a synthetic paper sheet material made of polyvinyl chloride components and pulp components by vacuum forming and welding, and an appropriate pattern is printed on the surface of the toy body, and an appropriate pattern is printed on the surface of the toy body. 1. A toy with a surface that changes color, characterized in that a surface layer that changes color due to water content or temperature changes is provided on a part or all of the toy. (2) The pattern on the sheet material is dyed with a general pigment, and the surface layer of the toy body is formed of a film coated with a low curvature index pigment that is attached to the top surface of the pattern and whose light transmittance increases with the addition of water. The surface discoloration toy according to claim 1, characterized in that: (3) The pattern of the sheet material is displayed with a general pigment or a thermochromic dye, and the surface layer of the toy body is formed with a thermochromic dye that changes color at a temperature different from the discoloration temperature of the pattern. A surface discoloration toy according to claim 1. (4) Print the desired colors and patterns on a synthetic paper sheet material formed from a polyvinyl chloride component and a pulp component, and then mold the sheet material into the toy body through a vacuum forming process and a welding process. A method for manufacturing a toy with a surface that changes color, characterized by applying a surface layer that changes color due to water content or temperature changes to a predetermined position on the surface of a toy body.