JPS5855024Y2 - Retroreflective pattern for thermocompression rolling - Google Patents

Description

[Detailed description of the invention] This invention enables the retroreflective surface of transparent glass microspheres used in traffic-related displays to have a color that is close to the same color as the apparent color and the color of the retroreflected light. This technology relates to a transfer sheet that transfers multicolored patterns onto textiles, leather products, etc. using an iron or hot press.

Conventionally, in most cases when retroreflective patterns are applied to textiles, leather products, etc., pre-made single-color retroreflective sheets are die-cut and attached. In some cases, it becomes a hassle.

As shown in the drawing, the present invention involves coating the entire surface of a mount 1 with a temporary adhesive 2, and then individually attaching transparent glass microspheres 3 with a refractive index close to 1.9 to the adhesive-coated surface. Arrange them in a single layer so that they can be removed and temporarily attach them so that they do not bury more than a hemisphere, print an arbitrary pattern 4 on the temporarily attached surface of the glass microspheres using transparent colored ink containing pearl foil fine particles, and then heat-press bond only on that pattern surface. This is a heat-pressure transfer sheet with a retroreflective pattern coated with Agent 5.The adhesive side is placed on the surface to which the pattern is applied, such as textiles or leather products, and heated and pressed with an iron or hot press.After the sheets have cooled, the sheet is Once removed, only the retroreflective pattern can be easily transferred, regardless of the number of colors or shape.

The coloring and reflection of the retroreflective pattern of this invention utilizes multiple reflections of light. For example, when multiple layers of transparent cellophane paper are stacked, light is gradually reflected. This is because the light passing through the transparent cellophane paper is reflected in turn by each sheet of transparent cellophane paper.

This phenomenon is called multiple reflection of light.

Therefore, the reflective material with the retroreflective pattern of this invention uses nearly colorless pearl foil particles that exhibit multiple reflections of this light.
The apparent color of the retroreflection pattern can be colored in a beautiful color, which is different from the specular reflection of light like fine metal particles such as gray aluminum.

In addition, the coloring of the retroreflected light in the retroreflection pattern is different from fine metal particles such as aluminum, which exhibits specular reflection of light that is directly reflected from the surface without passing through the light. The retroreflected light can be easily colored by transparently coloring the portion through which the light passes, since it is retroreflected by the pearl foil microparticles that exhibit multiple reflections of the light that is reflected.

The retroreflective pattern of the present invention, which is printed and colored using transparent colored ink containing pearl foil particles that exhibit multiple reflections of light, has a color in which the apparent color and the color of the retroreflected light are close to the same color. will be presented.

In addition, the retroreflective pattern of this invention can be easily applied to beautiful multicolored patterns, so it can be used on the clothes and belongings of pedestrians, including children and the elderly, and people involved in transportation.
During the day, it acts as an ordinary decorative pattern, and at night, it becomes a decorative pattern that exhibits retroreflection, which reflects clearly and is visible to drivers of cars, motorcycles, etc., and people who are located in the light source.In addition to decoration, it can also be used to prevent traffic accidents. It looks like it will be useful.

Example: A silicone resin solution was applied to the entire surface of a polyester film with a thickness of 50μ, and when the resin had dried to the extent that it did not flow, transparent glass microspheres with a refractive index of 1.9 and a mesh size of 200 to 250 were sprinkled. The adhesive is dried in a single layer so as not to be buried more than the hemisphere, and then heat treated at 120 degrees Celsius for 3 minutes or more to create a temporary adhesive strength that cannot be removed during processing.

Then, a transparent colored screen printing ink containing pearl foil fine particles with the following mixing ratio.The retroreflective function of the retroreflective pattern printed and colored with the ink with this mixing ratio is able to withstand the heat pressure during heat pressure transfer. .

Screen print an arbitrary pattern on the surface of the film to which the transparent glass microspheres are temporarily attached using such ink, and then sprinkle 80 to 250 meshes of nylon resin particles before the pattern dries. Adhere and dry at 140 degrees Celsius.
Heat-treat for at least 5 minutes at 30°C.

The processed and printed film's surface to which nylon resin microspheres are attached is superimposed on the pattern-attached surface of textiles, leather products, etc.
If you apply pressure for about 30 seconds with an iron heated to 0 degrees or a hot press, and then peel off the film after it has cooled, only the retroreflective pattern that exhibits reflected light close to the same color as the original color will be transferred. be.

[Brief explanation of drawings]

FIG. 1 is a side view showing the laminated structure of the present invention;
The figure is a plan view showing the state in which the mount of the present invention is peeled off after the pattern is transferred, and FIG. 3 is a side view showing the state in which the mount is peeled off after the pattern is transferred, similar to FIG. 2. In addition, in all the figures, 1 indicates the mount, 2 indicates the temporary adhesive, 3 indicates the transparent glass microspheres, 4 indicates the pattern, 5 indicates the hot pressure adhesive, and 6 indicates the adherend of the pattern. It is something.

Claims (1)

[Scope of utility model registration request] As shown in the drawing, a temporary adhesive 2 is applied to the entire surface of the mount 1, and each transparent glass microsphere 3 with a refractive index close to 1.9 can be reliably removed from the adhesive-coated surface one by one. Arrange the glass microspheres in a single layer and temporarily attach them so that they do not bury more than a hemisphere, print an arbitrary pattern 4 on the temporarily attached surface with transparent colored ink containing pearl foil particles, and apply hot pressure adhesive only on that pattern surface. 5. Heat pressure transfer sheet with retroreflective pattern.