Braille mount and shrink film mount
The Braille mount structure with a paper base, resin, and varnish layers, combined with a tubular shrink film, addresses the challenge of maintaining Braille shape and appearance on paper substrates, enhancing durability and reducing plastic use in packaging.
Patent Information
- Application Number
- JP2021191987
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-11-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2041-11-26
AI Technical Summary
Existing methods face challenges in printing Braille on shrink film-backed paper substrates, leading to issues like impaired appearance and difficulty in maintaining the shape of Braille characters due to foil stamping, especially when using paper-based materials.
A Braille mount structure comprising a paper base layer, a resin layer, a printing layer, and a varnish layer, with Braille characters protruding and a recessed paper base layer, and a tubular shrink film attachment, which includes a concealing layer to maintain the Braille shape and appearance.
The solution allows for suitable formation and maintenance of Braille characters on a paper substrate, ensuring durability and visibility despite manufacturing pressures, while reducing plastic use in packaging.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a Braille mount, more particularly to a Braille mount using a paper substrate.The present invention also relates to a Braille mount with a shrink film. [Background technology]
[0002] To increase convenience for the visually impaired, braille is now being added to product packaging. Patent Document 1 describes a blister container in which a lid and a container having a content storage section are releasably bonded at a heat-sealed portion around the periphery, and Braille is provided on the lid and container. Both the lid and container are made of synthetic resin sheets. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 4202808 Summary of the Invention [Problem to be solved by the invention]
[0004] In order to reduce the burden on the environment, efforts are being made to reduce the amount of plastic used in packaging. Shrink film-backed liner, which is made of a paper base with a cylindrical shrink film attached to it, is expected to be an alternative to packaging materials such as the blister packs mentioned above.
[0005] When braille is to be printed on a mount with shrink film, it is impossible to print braille on the shrink film itself, so it must be printed on the mount. As a result of further investigation, the inventors discovered several problems when printing braille on a mount made of paper, as will be described in detail later. The inventors have solved this problem and completed the present invention.
[0006] An object of the present invention is to provide a Braille mount that uses a paper base material and on which Braille characters are suitably formed. [Means for solving the problem]
[0007] A first aspect of the present invention is a Braille backing sheet comprising a paper base layer, a resin layer provided on the paper base layer, a printing layer provided on the resin layer, and a varnish layer provided on the printing layer, and having a Braille section with one or more Braille characters protruding toward the varnish layer, and the portion of the paper base layer corresponding to the Braille characters is recessed toward the varnish layer.
[0008] A second aspect of the present invention is a shrink film-attached mount comprising a Braille-attached mount according to the first aspect and a tubular shrink film joined to an area of the Braille-attached mount where no Braille portion is provided. [Effects of the Invention]
[0009] According to the present invention, it is possible to provide a Braille mount on which Braille characters are suitably formed while using a paper substrate. [Brief explanation of the drawings]
[0010] [Figure 1] 1 is a schematic plan view showing a mount with Braille according to an embodiment of the present invention; [Figure 2] FIG. 2 is a schematic cross-sectional view taken along line II in FIG. [Figure 3] FIG. 10 is a schematic plan view showing a mount with Braille according to a modified example of the present invention. [Figure 4] FIG. 4 is a schematic cross-sectional view taken along line II-II in FIG. DETAILED DESCRIPTION OF THE INVENTION
[0011] An embodiment of the present invention will be described with reference to FIGS. 1 is a schematic plan view showing a shrink film-attached mount 1 according to this embodiment. The shrink film-attached mount 1 includes a Braille-attached mount 10 on which Braille is formed, and a tubular shrink film 30 bonded to the top surface of the Braille-attached mount 10.
[0012] Figure 2 shows the layer structure of the Braille mount 10. The Braille mount 10 has a structure in which a resin film layer (resin layer) 12, an aluminum layer (concealing layer) 13, a printing layer 14, and a varnish layer 15 are arranged in this order on a paper substrate layer 11. In this embodiment, the paper base layer 11 and the resin film layer 12 are joined by an adhesive layer 21, and a printing layer is formed on an anchor coat layer 22 formed on an aluminum layer 13. The adhesive layer 21 and the anchor coat layer 22 are optional configurations and do not necessarily have to be provided.
[0013] As the material for the paper base layer 11, various known papers can be used, such as processed paperboard, coated cardboard, uncoated cardboard, special paperboard (coated cardboard, single-sided coated cardboard), processed paperboard (foil cardboard, impregnated cardboard, laminated cardboard, surface-treated cardboard), microflute, cup base paper, milk base paper, special cardboard, ivory, waterproof paper, and abrasion-resistant paper, but cardboard and surface-treated cardboard are particularly preferred. The thickness of the paper substrate layer 11 can be about 150 μm to 1500 μm, and preferably 350 μm to 600 μm.
[0014] The resin film layer 12 can be made of various known synthetic resin films such as polypropylene, polyethylene, polyethylene terephthalate (PET), etc., with polyethylene terephthalate being particularly preferred. By bonding a resin film having aluminum foil or an aluminum vapor deposition layer on one side to the paper base layer 11 with an adhesive, the resin film layer 12 and aluminum layer 13 can be easily formed on the paper base layer 11. In this case, an adhesive layer 21 is interposed between the paper base layer 11 and the resin film layer 12, as shown in Figure 2.
[0015] The sum of the thicknesses of the resin film layer 12 and the aluminum layer 13 is preferably 10 μm or more and 30 μm or less. If it is too thin, it is difficult to obtain the effect of holding the formed Braille (details will be described later), and if it is too thick, the outline of the Braille may become blurred and difficult to recognize when touched. The thickness of the aluminum layer 13 can be 300 angstroms (Å) or more and 1000 Å or less, and may be 350 Å or more and 500 Å or less.
[0016] The printing layer 14 provides letters, designs, etc. to the Braille mount 10. The printing layer 14 can be formed using various known inks. The anchor coat layer 22 can be provided as needed when it is difficult to apply ink to a concealing layer such as the aluminum layer 13. When only letters or designs are formed using the printing layer 14, the concealing layer becomes the background color of the surface of the Braille mount. For example, in this embodiment, by providing the aluminum layer 13 as the concealing layer, the background color of the surface of the Braille mount becomes a glossy silver color. If the appearance of the concealing layer does not want to be the background color of the surface of the Braille mount, it is sufficient to first form a full-surface printing layer on the concealing layer and then print letters, designs, etc. on top of that. By forming a transparent full-surface printing layer, it is possible to change only the color while taking advantage of the gloss of the concealing layer. By forming an opaque full-surface printing layer, it is possible to freely choose the background color without being affected by the concealing layer.
[0017] The varnish layer 15 covers and protects the printed layer 14. Various known varnishes such as water-based varnish, oil-based varnish, and ultraviolet-curable varnish can be used for the varnish layer 15, with ultraviolet-curable varnish being particularly preferred. The thickness of the varnish layer 15 varies depending on the type of varnish used, but can be about 0.6 μm to 2.9 μm, and preferably 2.3 μm to 2.7 μm.
[0018] As shown in Figure 1, the Braille backing 10 has a Braille section 2 in one area, which has one or more Braille characters protruding upward, i.e., toward the varnish layer 15. The content of the information displayed by the Braille section 2 can be set appropriately depending on the product to be packaged, etc.
[0019] The Braille section 2 can be suitably formed by embossing the mount having the above-described layer structure. That is, the mount is sandwiched between a male mold having protrusions corresponding to the Braille characters to be formed and a female mold having recesses corresponding to the Braille characters to be formed, and pressure is applied to form the Braille section 2. By the foil stamping process, recesses are formed in the paper base layer 11 toward the varnish layer in the areas corresponding to the Braille characters, as shown in Figure 2. If Braille were formed only on the paper base layer by this type of foil stamping, the Braille portion would easily return to a nearly flat state, but in the Braille-imprinted mount 10 according to this embodiment, the resin film layer 12 deformed by the foil stamping is harder than the paper base layer 11, and therefore it can easily maintain the shape of the Braille portion 2 even against external forces that occur after processing. Similarly, the aluminum layer 13 is harder than the paper base layer 11, and therefore it can easily maintain the shape of the Braille portion 2 after the Braille is formed.
[0020] While investigating suitable configurations for Braille mounts, the inventors discovered that the appearance of the Braille portion is often impaired after foil stamping. This impairment can manifest as tears or cracks on the surface of the paper base layer. This impairment is primarily caused by deformation of the paper base layer during the foil stamping process, primarily due to the male die penetrating the paper base layer or, even if it does not penetrate, the surface of the extruded portion becoming irregular. Therefore, it has been difficult to eliminate this impairment by changing the material or thickness of the paper base layer.
[0021] The inventors solved this problem by providing a concealing layer on the paper substrate layer. This concealing layer makes the deterioration of the appearance of the paper substrate layer, which is structurally difficult to completely eliminate, less visible. This allows the inventors to create a Braille mount that maintains a good appearance even when the Braille is formed using foil stamping, even while still using a paper substrate. Because the concealing layer is opaque or has low transparency, even if tears or cracks occur on the surface of the paper substrate layer, the deterioration of the appearance is less visible when viewed from the varnish layer side.
[0022] As described above, the Braille-provided mount 10 of this embodiment can favorably hold the Braille characters formed by foil stamping, and also suppresses deterioration of the appearance due to the foil stamping.
[0023] In this embodiment, the material of the concealing layer is not limited to the above-mentioned aluminum, and other metals, synthetic resins, etc. can also be used. For example, an ink layer formed with an ink containing a binder resin such as silica can be used as the concealing layer, or a colored resin film with low transparency can be used to serve as both a resin film layer and a concealing layer. The concealing layer may be composed of multiple layers, and the multiple layers may be made of different materials. Examples of metals other than aluminum include iron, copper, and gold.
[0024] In this embodiment, adhesive (symbol Ad shown in FIG. 1) is applied in a line or strip shape to the top surface of the Braille-attached mount 10, and the outer surface of a cylindrical shrink film 30 is joined to complete the shrink-attached mount 1. When an item to be wrapped is placed through the shrink film and heated, the shrink film shrinks, encasing the item and holding it together with the Braille-attached mount 10, making it ready for display.
[0025] When shrink film-covered mounts are manufactured by machine, it is expected that pressure will be applied to the Braille-covered mounts, for example, in the following process. - Pressure caused by the weight of many braille sheets stacked in the paper feed section In the process of laminating cut shrink film onto adhesive-coated braille backing paper, pressure is applied to the braille backing paper as it passes between the drum and rubber roller. - The process of pressing the Braille backing and the shrink film together after the shrink film has been attached -In the overlap detection process that is carried out after the shrink film backing is completed and before it is accumulated, pressure is applied when it passes between the rollers. All of the above pressures act in the direction of flattening the Braille formed by foil stamping, but the Braille backing 10 of this embodiment can withstand such pressure and maintain the protruding state of the Braille portion, making it particularly excellent as a component of a shrink film-covered backing.
[0026] Although one embodiment of the present invention has been described above, the specific configuration is not limited to this embodiment, and configuration changes and combinations within the scope of the gist of the present invention are also included. Some examples of changes are shown below, but these are not all inclusive, and other changes are also possible. Two or more of these changes may be combined as appropriate.
[0027] 3 and 4, a protective layer 40 may be provided to cover the Braille portion 2. The provision of the protective layer 40 further increases the resistance to pressure and other factors that act during the manufacturing process of the shrink film-covered mount described above, and also makes it less noticeable that cracks or peeling of the printing layer, varnish, etc. that occur during the foil stamping process occur. Examples of materials for the protective layer 40 include metal foil such as aluminum foil, as well as resins such as epoxy resin and urethane resin. When using resin as the protective layer, the protective layer can be formed by placing molten resin on the area where the Braille is formed. When a transparent resin is used as the protective layer, there is also the advantage that the image underneath the protective layer is not hidden. An additional coating layer may be provided on the protective layer.
[0028] The application of the Braille mount of the present invention is not limited to the shrink-wrapped mount described above, but can be widely applied to various packaging materials. By replacing plastic components with the Braille mount of the present invention, it is possible to ensure good Braille and appearance while contributing to reducing the amount of plastic used in packaging materials.
[0029] The dimensions and position of the shrink film attached to the braille backing can be set appropriately depending on the item being packaged. In plan view, the shrink film may be attached in a position where part of it extends beyond the braille backing. [Explanation of symbols]
[0030] 1 shrink-wrapped card 2 Braille section 10, 10A Braille backing 11 Paper base layer 12 Resin film layer 13 Aluminum layer (concealing layer) 14 Printing layer 15 varnish layer 21 Adhesive layer 22 Anchor coat layer 30 Shrink Film 40 protective layer
Claims
1. A paper base layer; a resin layer provided on the paper base layer; a printing layer provided on the resin layer; a varnish layer provided on the printing layer; Equipped with A braille portion having one or more braille characters protruding from the varnish layer side is provided, In the paper base layer, a portion corresponding to the Braille is recessed toward the varnish layer, The resin layer is harder than the paper base layer and maintains the shape of the portion of the paper base layer corresponding to the Braille. Braille backing paper.
2. The resin layer is made of polyethylene terephthalate. The Braille mount according to claim 1.
3. The mount with braille according to claim 1 or 2, further comprising a concealing layer provided between the paper base layer and the printing layer, the concealing layer covering the braille.
4. the concealing layer is an aluminum layer provided on one surface of the resin layer, The sum of the thicknesses of the resin layer and the aluminum layer is 10 μm or more and 30 μm or less. The Braille mount according to claim 3.
5. Further provided is a protective layer covering the Braille portion. The Braille mount according to any one of claims 1 to 4.
6. The Braille mount according to any one of claims 1 to 5, a cylindrical shrink film bonded to a portion of the Braille mount where the Braille portion is not provided; Equipped with Mounting paper with shrink film.
Citation Information
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