CN2371623Y - Holographic semi-transparent film for printing - Google Patents

Abstract

The utility model belongs to an anti-counterfeiting label film for printing and packaging, in particular to a semipermeable holographic film for printing. There is a layer of transparent embossing layer 3 on the surface of the plastic film of the transparent body layer 1, a layer of non-metallic reflection strengthening layer 4 is covered on the surface of the embossing layer 3, and a layer of protective layer is coated on the surface of the strengthening layer 4. Functional organic transparency protective layer 5. Or between the transparent body layer 1 and the embossing layer 3, an organic reinforcing layer 2 for bonding is coated. Through the holographic film label, not only can the content printed on the printed matter be seen clearly, but also the holographic grating stripes will not be blocked and disappear due to sweat and oil stains on hands.

Description

Semi-permeable holographic film for printing

The utility model belongs to an anti-counterfeiting label film for printing and packaging, in particular to a semipermeable holographic film for printing.

Holograms have been widely used in various anti-counterfeiting printing and packaging, among which the most well-known is anti-counterfeiting holographic labels. In recent years, with the fierce competition in the commodity market, anti-counterfeiting technology has been applied to packaging materials, and holographic technology has been used to produce certain graphics and texts, plus ink printing on packaging paper and films. Function, and it is the anti-counterfeiting on the whole package; some holograms are applied to certificates, card making, etc., such as a beautiful hologram embedded in a certain part of the manufactured credit card, driver's license, etc. to prevent counterfeiting.

The most economical way to make a holographic film is to use a very thin metal sheet with a holographic image, and transfer the image and text to be copied to the required embossing material by heating and pressing. Due to its low price and Ease of molding is often chosen as an embossing material. At present, the vast majority of holographic products (especially anti-counterfeiting labels) use gold or silver opaque plastic films such as PET and PVC. The opaque hologram cannot see the content covered under the holographic pattern. It is used on the anti-counterfeiting card and occupies a small part of the card; as a printing and packaging material, its metallic color is monotonous, which makes it suitable for use in the holographic field. limited. Therefore, if the holographic film can have a certain degree of transparency, it is very necessary to be able to be used as a covering film. Recently, printed matter with a transparent film covered with a laser holographic grating pattern has begun to appear on the market, such as the outer packaging carton of a VCD. shortcoming.

The main purpose of this utility model is to provide a semi-transparent holographic film for printing without metallic color, which can be applied to the laminating film of card making, certificates and printed matter, so that the entire layout of the card or printed matter can be equipped with holographic patterns and It does not affect the appearance of the card; another purpose of the utility model is to clearly see the color, text and pattern of the card or printed matter through the holographic pattern without metallic luster, and it will not be caused by sweat and oil stains on the hands. The disappearance of the holographic effect.

The technical scheme of the utility model is: the semi-permeable holographic film includes a label body layer and an embossing layer for providing holographic images or characters, and is characterized in that: a transparent embossing layer is coated on the surface of the plastic film of the transparency body layer 1 The printed layer 3 is covered with a layer of non-metallic reflection enhancing layer 4 on the surface of the transparent embossing layer 3 , and coated with a protective organic transparent protective layer 5 on the surface of the non-metallic reflection enhancing layer 4 .

In the utility model, an organic reinforcing layer 2 for bonding is also coated between the plastic film surface of the transparent main body layer 1 and the transparent embossing layer 3 .

The transparent main body layer 1 is composed of transparent materials with high strength and fastness and good flexibility, such materials are usually made of plastic films such as PET, PVC, and OPP; High organic coatings with high binding force with the transparency embossing layer 3, such as acrylic and rubber coatings, when the transparency embossing layer 3 and the transparency body layer 1 itself have a good bonding force, the The reinforcement layer is not required; the transparency embossing layer 3 is an organic coating used to provide holographic images. The coating is often selected from polyester and acrylic coatings, and the holographic grating is transferred from the template to the coating by hot pressing. layer; the non-metallic reflection enhancing layer 4 is to cover the surface of the embossing layer 3 with a layer of high refractive index oxide by sputtering and other techniques, such as silicon oxide, titanium oxide, zirconium oxide, etc., which can strengthen the hologram effect; the transparency protective layer 5 is a coating with high transparency and good wear resistance, which is used to protect the holographic pattern from abrasion, and generally uses polyurethane, silicone modified epoxy resin, acrylate and the like.

When the utility model is used in a specific application, it can be selected according to the ink on the printed matter and the adhesive for compounding whether to use the transparent body layer 1 or the protective coating 5 to cover the surface of the printed matter, so as to ensure that the coating is well combined with the product and is not easy to peel off .

The holographic grating of the utility model is protected inside the labeling film, and there are protective layers on both sides of the outside. It is very convenient to use on printed matter, card and other documents, and it can be combined with the object to be pasted regardless of the front and back sides; due to the use of transparent materials As the protective layer of the label, through the label, not only can you see the content printed on the printed matter, but you can also see the decorative or anti-counterfeiting hologram without metallic luster, and the hologram will not be damaged by sweat and oil stains on your hands. The grating stripes are filled and disappear.

Below in conjunction with accompanying drawing, the technical solution of the utility model is further described.

Fig. 1 is the three-dimensional schematic view of the utility model;

Fig. 2 is the schematic sectional view of the utility model;

Fig. 3 is a three-dimensional schematic diagram of Embodiment 1 of the present utility model;

Fig. 4 is a schematic cross-sectional view of the utility model embodiment 1 before card making (a) and after card making (b);

Figure 5(c) is a schematic cross-sectional view of the printed matter of Embodiment 2 of the present invention and the transparent base layer;

Fig. 5(d) is a schematic cross-sectional view of printed matter and protective coating in Example 2 of the present invention.

Labels in the figure:

1. Transparency body layer 2. Strengthening layer 3. Transparency embossing layer 4. Non-metallic reflection strengthening layer

5. Transparent protective layer 6. Card substrate 7. Printed matter 8. Card

9. Printed words on the card 10. Semi-permeable holographic film 11. Holographic pattern

Example 1

As shown in FIG. 3 , in the embodiment of making the admission ticket, the transparent main body layer 1 and the card making substrate are made of the same material. Through hot pressing, the PVC plastic film surface of the transparent body layer 1 is covered with a layer of acrylic transparent embossing layer 3, and there is a holographic grating transferred from the template to this layer by hot pressing on the transparent embossing layer 3 Cover the surface of the embossed layer 3 with a layer of high refractive index silicon oxide reflection strengthening layer 4 by sputtering technology, and coat a layer of protective polyurethane transparent protective layer 5 on the surface of the non-metallic reflection strengthening layer 4 Make a holographic film. The printed bottom card is integrated with the holographic film during the thermoforming process. Please refer to the sectional views before and after card making in Fig. 4, as can be seen from the figure, the transparent body layer 1 and the card substrate 6 are integrated after card making.

Example 2

As shown in Figure 5(c) and (d), the situation where the holographic film is coated on the paper. The specific manufacturing method of the holographic film is the same as in Example 1, but a layer of methacrylic reinforcement layer 2 is coated between the transparent main body layer 1 and the transparent embossing layer 3 to strengthen the transparent main body layer 1 and the transparent embossing layer. 3 bond strength. Figure (c) is that the printed matter 7 is covered with the transparent body layer 1, and the transparent protective layer 5 is outside; Figure (d) is that the printed matter 7 is covered with the transparent protective layer 5, and the transparent protective layer 5 is inside. The holographic film produced by these two methods can not only see the printed content of the item clearly, but also see the decorative or anti-counterfeiting hologram without metallic luster, and will not be stained by sweat and oil on the hands. Fill and disappear the holographic grating stripes.

Claims (2)

1. A semi-permeable holographic film for printing, comprising a label body layer and an embossing layer providing holographic images or text, characterized in that: a layer of transparency is coated on the plastic film surface of the transparency body layer (1). The embossing layer (3) is covered with a layer of non-metallic reflection enhancing layer (4) on the surface of the transparent embossing layer (3), and is coated with a protective layer on the surface of the non-metallic reflection enhancing layer (4). Organic transparency protective layer (5). 2. The semi-permeable holographic film for printing as claimed in claim 1, characterized in that an organic reinforcing layer for bonding is also coated between the transparent body layer (1) and the transparent embossing layer (3) (2).

Images