JPS586687Y2 - Heat-shrinkable film with glittering pattern - Google Patents

Description

[Detailed description of the invention] This invention relates to a heat-shrinkable film having a glittering pattern, and allows any glittering pattern, i.e., any glittering character, figure, symbol, etc.
This relates to heat-shrinkable films that have patterns, patterns, etc.

Conventional heat-shrinkable films with glittering patterns are produced by printing letters and patterns on a shrinkable plastic film using glittering ink, but this method does not provide the desired glittering gloss.

In addition, attempts have been made to use heat-shrinkable films that have a metal vapor deposited layer, but because they have a metal vapor deposited layer on the entire surface, they are not suitable for applications that require partial transparency. .

This invention eliminates the above-mentioned drawbacks.

This invention will be explained below with reference to the drawings.

In this invention, a transparent resin layer 2 colored or uncolored in an arbitrary pattern and a metal vapor deposition layer 3 are sequentially laminated on one side of a transparent shrinkable plastic film 1 that has heat shrinkability in at least one direction. This is a heat-shrinkable film having a glittering pattern, which is characterized in that a protective layer 4 is provided over the entire surface if necessary.

Next, this invention will be explained in order of manufacturing process.
A monochrome or multicolored transparent resin layer 2 is provided on one side of a transparent shrinkable plastic film 1 having heat shrinkability in at least one direction using a colored or uncolored water-insoluble resin, and the transparent resin layer 2 is made of a colored or uncolored water-insoluble resin. After providing a water-soluble resin layer 5 on the unprovided portions and then providing a metal vapor deposition layer 3 on the entire surface,
The water-soluble resin layer 5 and the metal vapor-deposited layer 3 on the water-soluble resin layer 5 are removed by washing with water, and the metal vapor-deposited layer 3 is left on the parts other than the transparent resin layer and the water-soluble resin layer 5, and then colored if necessary. Alternatively, it is a heat-shrinkable film having a glittering pattern formed by providing an uncolored protective layer 4 on the entire surface.

As the transparent shrinkable plastic film 1, a film made of vinyl chloride resin or the like that is shrinkable in at least one direction when heated is used.

On one side of this transparent shrinkable plastic film 1, a monochromatic or multicolored transparent resin layer 2 is provided with an arbitrary pattern using horizontally soluble paint, printing ink, etc. by gravure printing or the like.

The transparent resin layer 2 is uncolored or colored.

The transparent resin layer 2 is preferably one that has good adhesion to the shrinkable plastic 1, good adhesion to the metal vapor deposited layer 3, and good workability.

For example, the portion where the transparent resin layer 2 is not provided is made of PVA.
A water-soluble resin layer 5 is provided by gravure printing or the like.

Even if there is a part where the transparent resin layer 2 is provided, if there is a part where the metal vapor deposition layer is not required, the water-soluble resin layer 5 is added thereto.
It is possible to provide

Additionally, alcohol or the like may be added to improve drying.

Either the transparent resin layer 2 or the water-soluble resin layer 5 may be provided first, or both may be provided in the same process.

Further, the mutual edge portions may overlap or may be spaced apart.

Thereafter, a metal vapor deposition layer 3 is provided over the entire surface using a metal such as AI.

Next, the water-soluble resin layer 5 is removed by immersing it in cold water or warm water that does not cause the shrinkable plastic film 1 to shrink, or by washing with shower water to dissolve the water-soluble resin layer 5.

At the same time, the metal vapor deposited layer 3 on the water-soluble resin layer 5 is inevitably separated and removed.

In this way, the water-soluble resin layer and the metal vapor-deposited layer on the water-soluble resin layer are removed, and the metal vapor-deposited layer remains on the parts other than on the transparent resin layer and the water-soluble resin layer.

Thereafter, a colored or uncolored protective layer 4 is provided on the entire surface by roll coating or gravure printing to obtain a heat-shrinkable film having the glittering pattern of this invention.

Note that the protective layer 4 is not required depending on the application, and when this invention is used for shrinkable labels etc., a heat-sensitive adhesive layer may be further provided on the protective layer 4 or the protective layer 4 may be
It is also possible that the adhesive layer also serves as an adhesive layer.

This idea is for labels, cap stickers, tight caps,
Can be used for other purposes.

For example, in the case of labels, if this idea is finished to a predetermined width and made into a cylinder shape by appropriate means such as gluing or fusing, then it is placed over a bottle, can, or other container, heated and shrunk, and used as a high-quality label. Suitable for cosmetics and alcoholic beverages.

Also, in the case of a cap seal, it can be used in a cylindrical shape like a label.

Furthermore, in the case of a tight cap, a flat film can be placed over a container having a rim, and the portion protruding from the rim of the container can be heated and shrunk to be locked to the rim of the container.

This design has a metallic luster and is more beautiful than those printed with conventional glitter inks.

In addition, since the metal vapor deposition layer is present not on the entire surface but partially, it is not as flashy as it would be on the entire surface, making it possible to emphasize one point and also allowing the contents to be seen through.

In addition, when used for labels, the metal vapor-deposited layer is on the inside, resulting in very good abrasion resistance and chemical resistance.

Previously, if the metal vapor deposited layer was shrunk by more than 10%, a whitening phenomenon would occur, which restricted the use of shrink films that had a metal vapor deposit layer on the entire surface. Since it is possible to design the contracted part by removing the metal deposited layer, it is possible to widen the range of applications.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view showing an embodiment of this invention. FIGS. 2A and 2B are partially enlarged cross-sectional views illustrating the process of providing a metal vapor deposition layer on an arbitrary pattern, and A shows a structure in which the metal vapor deposition layer is provided on the entire surface of the transparent resin layer and the water-soluble resin layer. , B shows a structure in which the water-soluble resin layer and the metal vapor deposited layer on the water-soluble resin layer are removed, and the metal vapor deposited layer is left on the parts other than the transparent resin layer and the water-soluble resin layer. 1...Transparent shrinkable plastic film, 2
...Transparent resin layer, 3...Metal deposition layer,
4... Protective layer, 5... Water-soluble resin layer.

Claims (1)

[Scope of utility model registration request] A colored or uncolored transparent resin layer and a metal vapor deposition layer are sequentially laminated on one side of a transparent shrinkable plastic film having heat shrinkability in at least one direction,
1. A heat-shrinkable film having a glitter pattern, which is provided with a protective layer over the entire surface if necessary.