JP3226076U - Composite material for packaging such as cosmetic paper containers with various added functions - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an eco-friendly paper container that appeals to the beauty and functionality. A paper composite material produced by gravure-printing a back surface of a film base material and pasting a surface mounting film provided with an adhesive layer and a paper base material. Use a paper container with excellent water repellency, scratch resistance, and peelability. [Selection diagram] Figure 1

Description

The present invention relates to a composite laminated material for packaging, which comprises a combination of a PET film for surface mounting, which has various functions added by a gravure printing method, and a base paper substrate.

This composite laminated material is a paper composite material for making paper products such as cosmetic paper containers and corrugated cardboard, and the ratio of plastics used is extremely low at 10% or less of the thickness of the paper base material. , Provides packaging materials and paper products with low environmental impact.

In general, most paper containers and cartons are produced by the offset printing method by raising the printing plate based on the design drawing designed by the designer. However, offset printing is a lithographic printing method, in which ink is applied to the pattern part due to the difference between water and oil, it is transferred to a blanket, and it is transferred (set off) to paper for printing. There was a limit to the richness of gradation.

On the other hand, gravure printing is called the intaglio printing method.The surface of the gravure cylinder is filled with ink, which is called a cell, and the excess ink is scraped off with a doctor blade and the ink in the cell is transferred to the base material. It is a method of printing. Since this method can reproduce the shades of the pattern depending on the depth of the ink cell, it is possible to achieve a three-dimensional and deep gradation expression with rich sizzle feeling compared to the offset method.

In particular, the souvenirs and foods displayed in stores are notable for their appearance when displayed. The packaging is said to be a "salesman who doesn't say anything," and the sizzle feeling (visually appealing taste) that appeals to consumers is a very important point for paper containers and cartons. From this point, the gravure printing is very advantageous as compared with the offset printing.

Until now, the surface of paper containers and cartons has been surface-treated (surface protection) by offset printing for water resistance, scratch resistance, and ink film protection, followed by varnishing in a separate process or OPP film attachment. There were a lot of paper containers and carton products. However, it was an obstacle to shortening the delivery time because the process was a separate process.

Japanese Patent Application No. 2018-002597 and Japanese Patent Application Laid-Open No. 2019-119518 Japanese Patent Application No. 2017-148049 and Japanese Patent Application Laid-Open No. 2019-026334. Japanese Patent Application Nos. 2017-003517 and No. 3212990 Japanese Patent Application No. 2008-006360 and Japanese Utility Model No. 3146542 Japanese Patent Application No. 2007-037117 and Japanese Patent Application Laid-Open No. 2007-216683 Japanese Patent Application No. 2008-547786, Japanese Patent Publication No. 2009-521372 Japanese Patent Application No. 2008-522902 and Japanese Patent Publication No. 2009-503651

Due to the recent problem of marine polluted plastic garbage, eco-friendly paper container products have been attracting attention. The present invention adds various functions (functions such as gas barrier property and UV protection) that are lacking in conventional paper products and aesthetically pleasing sizzle at the time of sales display, and is eco-friendly paper containers and cartons. Is to provide.

Applying the knowledge of flexible packaging materials to paper containers / cartons, etc., a gravure printing layer and an adhesive layer are provided on the back side of a PET film with added functions to create a covering film, which is a base paper base used for paper containers / cartons. Laminated paperboard and corrugated cardboard (liner) are laminated to form a paper composite laminated material. We make paper products such as paper containers, cartons and corrugated cardboard using this material.

The PET film for glazing, which is gravure-printed on the back surface, also has an adhesive layer applied in-line at the same time as printing. Therefore, not only the process can be shortened as compared with the offset method, but also a cosmetic mounting film (surface coating film) having a high-grade feeling and a sizzle feeling that cannot be obtained by the offset method can be obtained.

The paper composite material is a composite material configured by combining with a PET film (12 μ, 16 μ, etc.) for covering having a thickness of 10% or less of the thickness of paper, and 90% or more of the composite material is a paper layer. Therefore, it is recognized as a paper product.

The paper products made of the composite material are beaten by the "pulper" at the time of recycling, but at this time, the PET film is peeled off and collected and never becomes a marine pollution plastic.

The attachment of the functionalized surface covering film and the paper base material may be performed by any of a roll-to-roll method, a roll-to-sheet method, or a sheet-to-sheet method, depending on the production lot amount.

As the PET film for mounting, a “functional film” having various functions required for the packaging material can be used according to the application. For example, it is an ultraviolet or infrared ray prevention film, an antifogging film, a peeling film, a shaping film, a light diffusion film, an antiglare film, a matte film, a hologram, a lens film, a light shielding film, a barrier transparent vapor deposition film and the like.

In addition to aluminum vapor-deposited paper, white paper that is a paperboard for carton / carton, such as Manila cardboard such as ivory and card, and white balls such as back ridge and back craft, are used as the paper base material to which the PET film for covering is attached. , Coated paper, high-quality paper, pure white roll paper, etc. are appropriately selected and used.

In the case of corrugated cardboard, use a corrugated cardboard liner that is specified in JIS P3902 as LA, LB, or LC grade, and bond it to the above PET film for mounting and use it as the front liner. Can be done.

As an application example, the RFID can be narrowly provided when the PET film printed with the pattern, functionality, and adhesive and the paper base are laminated. There are two ways to place the IC tag on the printed PET film side, and one on the white paperboard side of the base paper base. .

To attach the RFID to the PET film side, it is attached according to the print pattern, but when attaching to the plain paper base side of the base, the pattern is projected using an optical method such as a projector or projection mapping, and the It is characterized by positioning.

Corrugated cardboard is made by corrugating the front and back liners on both sides of a corrugated core. At this time, by projecting the shape of the corrugated board and the development drawing on the back surface of the front liner in actual size and deciding the mounting location in advance and placing an RFID, the IC tag will not be visible from the outside at the fixed panel position after the corrugated board is made. Can be sandwiched.

Paper containers, cartons, corrugated cardboard, etc. to which a back-printed gravure printing film is attached have not only the cosmetic effect with high display effect and sales promotion effect, but also strong resistance to water repellency and scratches on the surface, We can provide paper containers and paper products that also have various functions.

Various functions required for packaging materials such as an anti-glare film, an anti-fog film, a hologram film, and a transparent vapor deposition film having an oxygen barrier can be added in addition to an ultraviolet cut film and an infrared cut film.

The application of the composite material made of paper according to the present invention is not limited to the fields of packaging and containers such as paper containers, cartons, and corrugated cardboard, but it is a shopping bag that makes use of the toughness of the composite material, a book cover that makes use of scratch resistance, and UV protection. It can also be provided for outdoor posters, etc. where the printing ink that makes the most of the function is hard to fade.

If you make a paper container, carton, cardboard, etc. using the composite paper material with narrow RFID, you will not need to attach labels and tags by human tactics in the subsequent process, logistics management, inventory management, individual item management etc. Since the IC tag can be used even in automation, it contributes to labor saving and rationalization.

Based on this idea, it will be possible to develop applications to soft packaging materials with narrow RFIDs. If a sealant layer is provided on the back-printed PET film for outer packaging, it will be a soft packaging material. Therefore, if the RFID is narrowly provided during EC lamination or dry lamination, a source tagging packaging material promoted by the Ministry of Internal Affairs and Communications can be provided.

Basic configuration according to an embodiment of the present invention: Example of basic layer configuration cross section of paper composite material According to the implementation of the present invention: cross section of material layer structure of a functional paper container / carton According to the implementation of the present invention: Layered section of outdoor poster Application of the present invention: Example of layer structure of soft packaging material with IC tag

With a gravure printing machine, the design of the customer's design is printed on the back of the PET film with the functions that paper products, paper containers, and cartons require on the PET film by printing, coating, or kneading, vapor deposition, and transfer techniques. Printing, an adhesive is applied with the same printing machine to obtain a PET film for surface covering.

The adhesive for adhering the PET film for surface covering is not particularly limited as long as it is capable of gravure printing and is a heat-reactive adhesive (for PET // paper), and adhesives from various manufacturers can be used. Can be used. However, the adhesive of No. 1900W, Dainichi Seika Kogyo Co., Ltd., which had the best adhesive strength and was the most stable without the occurrence of tunneling due to punching and scoring in post-processing, was good. In particular, this grade is a water-based adhesive that does not contain organic solvents, and can be differentiated from other companies' products in terms of environmental consideration.

As the paper base material, an appropriate weight of paper is selected according to the application. Select from white paperboard for carton, poster paper, pure white roll paper, coated paper, fine paper, art paper, etc., depending on the application.

Various existing laminating machines are commercially available for laminating the covering film and the base material of the pace paper. Since there are laminating machines such as roll-to-roll type, roll-to-sheet-fed, sheet-to-sheet-fed, etc., depending on the production lot and processing amount, it may be used properly such as sheet-fed processing or roll-fed processing. .

This time, the existing punching machine, TRP1060S type manufactured by Sanwa Engineering Co., Ltd., and the DL850SW type manufactured by Sun Engineering Co., Ltd. were used as they were for punching and pasting.

PET film for surface coating 12 μm (made by Unitika) is printed on the back side of the pattern using a gravure printing machine, and then the above-mentioned thermo-reactive hot melt of Dainichi Seika Co., Ltd. is solidly printed in-line for surface mounting. I made a PET film.

400mm length x 620mm width sheet carton white paperboard for carton JET Star (Nippon Paper Industries Co., Ltd.) Using a weight of 350g as a paper base material, using an automatic laminating machine of roll to sheet (Japan Office Laminator Co., Ltd.) The above-mentioned paper composite material was prepared by laminating it with a cover film.

The paper composite material is hung on a blanking machine TRP1060S (Sanwa Engineering Co., Ltd.) used in a conventional carton manufacturing process to make a blank, and then subjected to the DL850SVMC process of a trunk-applying machine manufactured by Sun Engineering Co., Ltd. in a conventional process. Created a carton.

The composite material in which a dipole antenna is printed in advance on the pasting paper base substrate, an IC chip is on-chip and an RFID is provided, and then the PET film for mounting is pasted with the machine, and the RFID is narrowly installed. Using the above, a carton with an IC tag that responds was created by removing and pasting in the conventional manner.

As an application example, a commercially available RFID label was attached to the back surface of the PET film base material for outer packaging, and a sealant layer of PE or PP was provided by an EC laminating method or a dry laminating method to obtain a raw material for soft packaging.
This made a flat bag of four-sided bag, put a candy in it and made a sample, and confirmed the communication function. RFID could be installed narrowly in the packaging material manufacturing process, and the possibility of source tagging was confirmed in the process. In addition, instead of the base paper base material of the above-mentioned paper composite material, a pure white roll may be laminated and a sealant layer may be provided on the inner surface of the raw material for soft packaging.

Industrial availability

The present invention is a paper composite material created by using equipment such as a gravure printing machine and a laminating machine, and is a technology that is environmentally friendly and reflects the worldwide trend of plastic removal. In addition, it can be applied to paper containers, cartons, corrugated cardboards, and other commercial printed materials as a functional packaging material with rich beauty. Depending on the choice of functionality, it is possible to provide paper products, packaging materials, and printed materials with new additional functions that were previously impossible.

1. (1) is the layer structure of the composite paper material according to the present invention. (2) is a PET film coated on the back with an adhesive. (3) is a base paper base material 4. (4) is a narrow RFID
5. (5) is a heat seal layer (PP or PE)

Claims (8)

A paper composite material that is created by laminating a backing film that has an adhesive layer on the back side of a film base material and a paper base material, and is made using this material. A paper container with excellent functions such as scratch resistance and releasability. Cartons. A composite cardboard base paper made by gravure printing a pattern and an adhesive on the back side of a film base material and pasting it with a cardboard liner. It is used as a front liner for its beauty and surface gloss, water repellency, scratch resistance, and toughness. Cardboards with excellent properties (surface burst strength). It is a tough paper composite paper material created by gravure printing a pattern and an adhesive on the back side of a film base material and bonding it to a paper base material such as pure white roll paper. A shopping bag with excellent scratch resistance. Paper products such as book covers and posters. Gravure-print a pattern and adhesive on a film substrate with an ultraviolet ray cut function, create a paper composite material that has a UV cut function by adhering it to a paper substrate, and prevent the fading of printing ink by using this Paper products that also have functions. In addition to the above UV cut, the functional PET film of the cover includes infrared cut, hard coat, peeling, anti-glare, light diffusion, anti-fog, matte matte film, alumina transparent vapor deposition film, hologram, rainbow, etc. . This film is laminated as a cover film with the paper base material to produce a product. Paper composite materials and their products that can be selected from the various functions described above according to the contents and usage of the package. The above-mentioned paper composite material with an IC tag in which a picture and an adhesive are gravure-printed on the back surface of the above-mentioned functional mounting film, and an IC inlet is narrowly provided between the base paper base material and the base paper base material when formed. Cartons and cardboard products. Characteristic is that the pattern is projected on plain white paperboard or PET film by optical methods such as OHP and projection mapping, and the IC tag label is positioned and narrowed at a predetermined place on the PET film or paper base material before printing. Paper composite material with IC tag. It is a soft packaging material that is composed by laminating and laminating a heat-sealable sealant layer instead of a paper base material. It is designed to match the design shape and printed pattern, or the IC tag attachment position can be determined by the optical method in the previous term. A soft packaging material with an IC tag and its products characterized by being specified and narrowed.

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