CN204311000U - A kind of large format decoration pre-coating film with three-dimensional touch - Google Patents

Abstract

The utility model discloses a large-format decorative pre-coating film with three-dimensional tactility, which comprises: a three-dimensional tactile layer arranged on the top layer of the pre-coated film with a thickness of 30-50 μm; a fluorescent layer arranged on the lower surface of the three-dimensional tactile layer, The thickness is 3-5 μm; the decorative layer is arranged on the lower surface of the fluorescent layer and has a thickness of 0.1-0.5 μm; the base layer is arranged on the lower surface of the decorative layer and is biaxially stretched polypropylene or biaxially stretched polyester A film with a thickness of 12-20 μm, a haze of less than 2, and a longitudinal tensile strength greater than 150 MPa; a dielectric layer disposed on the lower surface of the substrate layer with a thickness of 0.02 μm; a hot melt adhesive layer disposed under the dielectric layer surface, the thickness is 12-30 μm. The utility model has high bonding strength, can be laminated with materials such as paper, non-woven fabrics, iron plates or wood plates, increases the decorativeness of these materials, and can also be used alone as advertisements and posters.

Description

A large-format decorative pre-coating film with three-dimensional touch

technical field

The utility model relates to a surface decoration material, in particular to a large-format decorative precoating film with three-dimensional touch.

Background technique

Pre-coating film lamination technology is the main processing technology of printed matter lamination in recent years, which belongs to the sustainable development of environmental protection technology. The pre-coating film used in this coating technology does not produce volatilization pollution of toxic gases during production and use, and has no harmful substance residues. It can be widely used in books (especially student textbooks), food, tobacco, alcohol, drugs, etc. In terms of packaging, it does not pose a potential threat to consumers, and is the first choice of many packaging companies and printing companies.

With the rapid development of pre-coating film technology, the current pre-coating film is not limited to paper-plastic composites, and even pre-coated films can be seen in wood-plastic composites, iron-plastic composites, glass-plastic composites and other fields. The pre-coating film is not only used as a protective material, but also can be used as a decorative material, thereby expanding the application field of the pre-coating film.

Utility model content

The technical problem to be solved by the utility model is to provide a large-format decorative pre-coating film with three-dimensional touch.

A large-format decorative pre-coating film with three-dimensional touch of the present utility model comprises:

The three-dimensional tactile layer is arranged on the top layer of the pre-coated film, with a thickness of 30-50 μm;

a fluorescent layer, disposed on the lower surface of the three-dimensional tactile layer, with a thickness of 3-5 μm;

a decorative layer, disposed on the lower surface of the fluorescent layer, with a thickness of 0.1-0.5 μm;

The substrate layer, arranged on the lower surface of the decorative layer, is biaxially oriented polypropylene or biaxially oriented polyester film, with a thickness of 12-20 μm, a haze of less than 2, and a longitudinal tensile strength greater than 150 MPa;

a dielectric layer, disposed on the lower surface of the substrate layer, with a thickness of 0.02 μm;

The hot melt adhesive layer is arranged on the lower surface of the medium layer, and has a thickness of 12-30 μm.

Preferably, the hot melt adhesive layer comprises ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer or polyurethane hot melt adhesive.

Preferably, the decorative layer and the fluorescent layer are printed on the upper surface of the substrate layer by gravure printing; the three-dimensional touch layer is formed by photoetching photosensitive ink.

Preferably, the decorative layer is provided with a decorative pattern, and the single area of the decorative pattern is at most 1.8*1.8㎡.

The utility model adopts the method of gravure printing to realize large-format pattern printing, which can be produced roll-to-roll, has lower cost and higher efficiency than the digital printing method commonly used in the market, and realizes the unity of individualization and low cost.

The utility model adopts the fluorescent layer, which not only can make the color of the decorative pattern more gorgeous, but also has a certain anti-counterfeiting function. Because the fluorescent layer itself is transparent, it can be printed into a special anti-counterfeiting pattern (such as a fingerprint), that is, it does not affect the original It has the decorative properties of a film, and can also see anti-counterfeiting patterns under ultraviolet light to achieve anti-counterfeiting purposes.

In order to realize the three-dimensional touch, the method of mechanical hot pressing is usually used, but the three-dimensional touch produced by this method is easy to disappear during use and cannot last for a long time, and the method of hot pressing cannot give the tiny pattern a three-dimensional touch. The photolithography method can completely overcome these shortcomings of the hot pressing method.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

The utility model is described in detail now in conjunction with accompanying drawing and embodiment thereof.

As shown in Figure 1, the large format decorative precoat film with three-dimensional touch of the present invention comprises:

The substrate layer 4, the substrate layer 4 is biaxially oriented polypropylene or biaxially oriented polyester film, the thickness of which is 12-20 μm, the haze is less than 2, and the longitudinal tensile strength is greater than 150 MPa;

The decorative layer 3 is printed on the upper surface of the substrate layer 4 by gravure printing. The decorative layer 3 can be personalized according to customer needs. The maximum area of a single pattern can reach 1.8*1.8m2. Roll-to-roll production has lower cost and higher efficiency than the digital printing methods commonly used in the market, and realizes the unity of personalization and low cost. The thickness of the decorative layer 3 is 0.1-0.5 μm;

The fluorescent layer 2 is printed on the upper surface of the decorative layer 3 by gravure printing, and its thickness is 3-5 μm. The area printed with the fluorescent layer 2 and the pattern of the decorative layer 3 can be consistent, and anti-counterfeiting marks can also be printed on any area . The fluorescent layer 2 can not only make the color of the decorative pattern more bright, but also has a certain anti-counterfeiting function, because the fluorescent layer 2 itself is transparent, and it can be printed into a special anti-counterfeiting pattern (such as a fingerprint), which does not affect the decoration of the original film. Performance, you can also see the anti-counterfeiting pattern under ultraviolet light to achieve the purpose of anti-counterfeiting;

The three-dimensional tactile layer 1 is coated on the upper surface of the fluorescent layer 2, and the three-dimensional tactile layer 1 is formed by photoetching the photosensitive ink. In order to realize the three-dimensional touch, the method of mechanical hot pressing is usually used, but the three-dimensional touch produced by this method is easy to disappear during use and cannot last for a long time, and the method of hot pressing cannot give the tiny pattern a three-dimensional touch. The photolithography method can completely overcome these shortcomings of the hot pressing method. The specific method is to first coat the photosensitive ink on the full width, after drying and curing, use a plate roller with the same pattern as the decorative layer to expose, and then wash off the exposed part of the photosensitive layer with developing potion, thus forming a pattern consistent with the decorative pattern. The notch has a three-dimensional effect when touched, and the reserved part can also protect the fluorescent layer 2. The three-dimensional tactile layer 1 has a thickness of 30-50 μm;

The dielectric layer 5, which is polyethyleneimine, is coated on the lower surface of the substrate layer 4, and its thickness is 0.02 μm, which serves to connect the hot melt adhesive layer 6 and the substrate layer 4;

The hot melt adhesive layer 6 is coated on the lower surface of the medium layer 5, and its hot melt adhesive layer 6 can be one or more of ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer or polyurethane hot melt adhesive , According to the selection of the material to be bonded, the thickness is 12-30μm.

The following are embodiments of the present utility model.

Embodiment 1 is as follows:

Taking the three-dimensional tactile decorative pre-coating film with a single decorative pattern area of 1.58m*1.8m as an example, polyester (PET) with a width of 1600mm can be used as the base layer 4, and the decorative pattern can be printed periodically at a length of 1800mm to achieve Mass production.

As shown in Figure 1, a large-format decorative pre-coated film with a three-dimensional touch, the base material is a biaxially stretched polyester film with a width of 1600 mm and a thickness of 15 μm, and a decorative layer 3 with a thickness of 0.15 μm is coated on the front side. The decorative layer 3 can be It is a 1.58m*1.8m moonlight image of a lotus pond. The decorative layer 3 is coated with a fluorescent layer 2 with a thickness of 5 μm. The printed pattern of the fluorescent layer 2 is consistent with that of the decorative layer 3. At the same time, a small amount of fingerprint patterns can be printed on areas other than the decorative pattern. To achieve the purpose of anti-counterfeiting.

Coat the photosensitive ink with a thickness of 35 μm on the fluorescent layer 2. After drying and curing, use a plate roller with the same pattern as the decorative layer 3 to expose, and then wash off the exposed part of the photosensitive layer with a developing solution, thus forming a three-dimensional ink. Tactile layer 1.

At this time, the width of the product is still 1600mm, and a medium layer 5 with a thickness of about 0.02 μm is coated on the reverse side of the biaxially stretched polyester film, and a hot melt adhesive layer 6 with a thickness of 20 μm is compounded on the medium layer 5, and the hot melt adhesive layer 6 is EMA, and the dielectric layer 5 is mainly used to improve the interlayer adhesion strength between the substrate layer 4 and the hot melt adhesive layer 6. When the hot melt adhesive layer 6 is combined, the edges on both sides of 20mm need to be cut off, and finally the width is 1580mm Large-format decorative pre-coated film with three-dimensional touch. This embodiment can be laminated with non-woven fabric, cut according to the length of the decorative pattern, and used as a decorative advertisement on the periphery of the real estate.

Embodiment 2 is as follows:

Taking the three-dimensional tactile decorative pre-coating film with a single decorative pattern area of 1.4m*1.6m as an example, polyester PET with a width of 1420mm can be used as the substrate layer 4, and the decorative pattern can be printed periodically at a length of 1600mm to achieve mass production .

As shown in Figure 1, the large-format decorative pre-coated film with three-dimensional touch is based on a biaxially stretched polyester film with a width of 1420 mm and a thickness of 20 μm, and a decorative layer with a thickness of 0.5 μm is coated on the front side of the biaxially stretched polyester film 3. The decorative layer 3 can be a 1.4m*1.6m picture of beautiful mountains and rivers, and the decorative layer 3 is coated with a fluorescent layer 2 with a thickness of 3 μm. The printed pattern of the fluorescent layer 2 is consistent with the decorative layer 3 .

Coat the photosensitive ink with a thickness of 50 μm on the fluorescent layer 2. After drying and curing, expose the part of the decorative layer 3 that needs to be particularly prominent (such as mountains and rivers or the rising sun) with a plate roller, and then wash off the exposed part of the photosensitive layer with a developing solution. In this way, the three-dimensional tactile layer 1 is formed.

At this time, the width of the product is still 1420mm, and a medium layer 5 with a thickness of about 0.05 μm is coated on the reverse side of the biaxially stretched polyester film, and a hot-melt adhesive layer 6 with a thickness of 30 μm is compounded on the medium layer 5, and the hot-melt adhesive layer 6 is ethylene-vinyl acetate copolymer EVA, and the dielectric layer 5 is mainly used to improve the interlayer adhesion strength between the base material layer 4 and the hot melt adhesive layer 6. When the hot melt adhesive layer 6 is combined, it is necessary to cut off 20mm of both side edges, Finally, a large-scale decorative pre-coating film with a three-dimensional touch with a width of 1400mm is made. This embodiment can be attached to glass, cut according to the length of the decorative pattern, and used as a translucent glass screen.

In the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined arbitrarily with each other. Although the above-mentioned embodiments have described the utility model in more detail, these explanations are only illustrative of the utility model, rather than limiting the utility model, and any utility model creations that do not exceed the essence of the utility model belong to this utility model within the scope of protection of utility models.

Claims (4)

1. A large-format decorative pre-coated film with three-dimensional touch, characterized in that it comprises: The three-dimensional tactile layer is arranged on the top layer of the pre-coated film, with a thickness of 30-50 μm; a fluorescent layer, disposed on the lower surface of the three-dimensional tactile layer, with a thickness of 3-5 μm; a decorative layer, disposed on the lower surface of the fluorescent layer, with a thickness of 0.1-0.5 μm; The substrate layer, arranged on the lower surface of the decorative layer, is biaxially oriented polypropylene or biaxially oriented polyester film, with a thickness of 12-20 μm, a haze of less than 2, and a longitudinal tensile strength greater than 150 MPa; a dielectric layer, disposed on the lower surface of the substrate layer, with a thickness of 0.02 μm; The hot melt adhesive layer is arranged on the lower surface of the medium layer, and has a thickness of 12-30 μm. 2. The large-format decorative precoat film with three-dimensional touch according to claim 1, characterized in that: the hot melt adhesive layer comprises ethylene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer or polyurethane hot melt glue. 3. the large-format decorative precoat film with three-dimensional touch according to claim 1, characterized in that: the decorative layer and fluorescent layer are printed on the upper surface of the substrate layer by gravure printing; the three-dimensional touch layer It is formed by photoetching photosensitive ink. 4. The large-format decorative pre-coating film with three-dimensional touch according to claim 1, characterized in that: said decorative layer is provided with decorative patterns, and the single sheet of decorative patterns has a maximum area of 1.8*1.8m ² .