JP6286937B2 - Manufacturing method for paper containers - Google Patents

Description

The present invention relates to a method for manufacturing a paper container. In particular, the present invention relates to a method for manufacturing a paper container such as a paper box in which a matte part and a glossy part are decorated and a sealing part is attached with an adhesive.

  Conventionally, when printing with a matte appearance on the outer surface of a high-grade paper box or the like, an appropriate amount of a matting agent of synthetic resin such as olefin or alkyd synthetic resin, or inorganic material such as silica or kaolin is added. The matte varnish was provided on the printing surface, and the matting agent made unevenness on the surface of the varnish to suppress gloss.

However, this mat varnish has a drawback that the gloss resistance is weak and gloss is generated by rubbing the mat varnish. Therefore, there has been a demand for a printing expression method having high friction resistance and a matte feeling.

  In order to provide such a printed expression with high friction resistance and a matte feeling, a varnish layer having liquid repellency is provided on a substrate having a print layer in synchronization with the pattern of the print layer, and at least the liquid repellency is provided. Printed materials in which an ultraviolet-curing gloss varnish layer is provided on a varnish layer having stagnation have been used (Patent Document 1).

  In this printed matter, the UV-curable high-gloss varnish is agglomerated in spots where the UV-curable high-gloss varnish is repelled by the liquid-repellent varnish layer, giving a matte feel, and the part without the liquid-repellent varnish layer Then, the UV curable high-gloss varnish is applied smoothly to obtain a glossy feeling, and at the same time, the wear resistance is remarkably improved.

  In the case of making a paper container such as a paper box with such a printed matter, there is one that is manufactured by sticking the sticking portion with an adhesive or the like. When this bonding part is in the sealing part, the part to adhere | attach may be made into the shape of a grid | lattice form, or the pattern extracted by circular shape may adjust sealing property and unsealing property.

  In order to form a pattern of the bonded portion, a varnish that does not adhere to the adhesive is applied in a pattern, and the adhesive is applied thereon. In this case, when peeling off, the adhesive and the non-adhering varnish are not bonded, so that the part where the non-adhering varnish is applied becomes a non-adhering part, and the adhering part can be patterned.

  The varnish that does not adhere to the adhesive for making such a paper container and the varnish with liquid repellency for printing expression were applied separately, but for that purpose, a plate is required separately, Moreover, the processing was also performed in a separate process. For example, when applying a varnish that does not adhere to an adhesive and a varnish having liquid repellency by printing, each plate must be made and units of two colors of a printing machine must be used.

  Known documents are shown below.

JP 2004-114654 A

The present invention has been made in view of the circumstances as described above, and is applied in a pattern to adjust the adhesive force at the sealing portion, and the surface gloss varnish is repelled by surface decoration and a varnish that does not adhere to the adhesive. An object of the present invention is to provide a method for manufacturing a paper container that can reduce the process and cost by performing coating processing once by using the same varnish for obtaining a matte feeling.

The present invention has been made in view of such problems, and the invention of claim 1 is a paper container having a paper base and a sealing portion adhered with a hot melt adhesive,
A pattern printing layer, a patterned liquid repellent varnish layer, and a surface gloss varnish layer are applied in this order to the outer surface of the paper container, and the surface gloss varnish layer is repelled on the liquid repellent varnish layer. And having surface decorations scattered in spots,
The sealed portion is coated with the patterned liquid-repellent varnish layer and the hot-melt adhesive layer in this order, and the paper can be peeled between the hot-melt adhesive layer and the liquid-repellent varnish layer. A method of manufacturing a container,
The method for producing a paper container , wherein the pattern-shaped liquid-repellent varnish layer on the outer surface and the pattern-shaped liquid-repellent varnish layer on the sealing portion are applied simultaneously. It is.

The method for producing a paper container according to the present invention includes a varnish that is provided to adjust adhesive strength at a sealing portion and that does not adhere to an adhesive and a varnish that has liquid repellency for printing expression. a manner Runode be applied simultaneously, to shorten the process, the cost can be reduced.

It is explanatory drawing which showed an example of the paper container manufactured by this invention with the perspective view. It is an expanded view of an example of the paper container manufactured by this invention. It is explanatory drawing which showed typically the state which assembles an example of the paper container manufactured by this invention. (A) It is explanatory drawing which showed typically the cross section of the outer surface part of an example of the paper container manufactured by this invention. (B) It is explanatory drawing which showed typically the cross section of the sealing part of an example of the paper containers manufactured by this invention.

Hereinafter, embodiments for carrying out the present invention will be described.
1 is an explanatory view showing an example of a paper container manufactured according to the present invention in perspective, FIG. 2 is a development view of an example of a paper container manufactured according to the present invention , and FIG. 3 is manufactured according to the present invention. It is explanatory drawing which showed typically the state which assembles an example of the paper container made.

  The paper container 100 of this example is a paper box as shown in the perspective view of FIG. Paper such as paperboard is used as the base material.

  As shown in the development view of FIG. 2 and the explanatory view showing the state of FIG. 4, the paper container 100 includes a body 10 and a lid 20. The body 10 includes a bottom plate 11, a front side plate 12, a left side plate 13, a right side plate 14, and a rear side plate 15 that rise from the end of the bottom plate 11.

  Adhesive plates 16, 16, 16, 16 are provided at both ends of the right side surface plate 13 and the left side surface plate 14, and are attached to the inner surface side of the adjacent front side plate 12 or rear side plate 15. The three-dimensional shape is maintained.

  The lid 20 includes a top plate 21, a lid front side plate 22, a lid left side plate 23, and a lid right side plate 24 provided downward from the end of the top plate 21. One end of the top plate 21 is connected to the rear side plate 15, and this connecting portion can be opened and closed as a hinge.

  Adhesive plates 25, 25 are provided at both ends of the lid front plate, and are adhered to the inner surfaces of the lid left side plate 23 and the lid right side plate 24, respectively, to maintain the three-dimensional shape of the lid 20. An easy-cut separation line in which small cutting lines are arranged in a line through uncut portions on the lid front side plate 22, the lid left side plate 23, and the lid right side plate 24 of the lid 20 so that they can be separated vertically. 26, 27, and 28 are provided. In addition, an easy cutting line 29 extending from the central portion of the easy cutting separation line 26 to the lower end of the lid front side plate 22 is provided so as to trigger opening.

  The body 10 is provided with an adhesive application portion 17 to which a hot melt adhesive is applied at a portion below the easy-cut separation lines 26, 27, and 28 of the lid 20. On the front side plate 12, the left side plate 13 and the right side plate 14, a liquid repellent varnish application part 18 is applied under the adhesive application part 17, and the liquid repellent varnish and the adhesive peel off at this part. It is possible. In the figure, a liquid-repellent varnish application part 18 under the adhesive application part 17 that is not originally visible is also drawn.

  The front side plate 12, the left side plate 13, and the right side plate 14 are bonded to the front side plate 22, the left side plate 23, and the right side plate 24 of the lid 20, and sealed and sealed. It has become.

  In this sealing part, since the liquid-repellent varnish applied in a pattern and the hot melt adhesive can be peeled off, the pattern of the liquid-repellent varnish allows the front side plate 12 and the left side of the body to be separated. Adhesive strengths of the front lid side plate 22, the lid left side plate 23, and the lid right side plate 24 of the face plate 13 and the right side face plate 14 are adjusted and are easily peeled off.

  In order to open the paper container 100, the easy-cutting separation line 26 is cut to the left and right, the easy-cutting separation line 27 and the easy-cutting separation line 28 are cut, and the lid front side plate 22 and Cut off the lower side of the lid left side plate 23 and the lid right side plate 24.

This lower part is bonded to the front side plate 12, the left side plate 13 and the right side plate 14 with a hot melt adhesive,
Even in the adhesive application part 17, since the adhesive can be peeled off in the liquid repellent varnish application part 18 undercoated with the liquid repellent varnish, the adhesive force is adjusted, so that it can be peeled off and removed. it can.

  Thus, when the lower side of the lid front side plate 22, the lid left side plate 23 and the lid right side plate 24 is cut off, the paper container 100 is opened, and the fold line connecting the top plate 21 and the rear side plate 15 is hinged. Thus, the lid 20 can be lifted and opened.

FIG. 4 (A) is an explanatory view schematically showing a cross section of an outer surface portion of an example of a paper container manufactured according to the present invention. (B) is explanatory drawing which showed typically the cross section of the sealing part of an example of the paper containers manufactured by this invention.

  The outer surface of the paper container 100, in particular, the outer surface of the top plate 21, the outer surface of the lid front side plate 22, the lid left side plate 23, and the lid right side plate 24 is partially or entirely decorated. Yes. With this surface decoration, a mat portion 31 having a mat feeling and a gloss portion 32 having a gloss feeling are partially provided.

  In the portion where the mat portion 31 and the gloss portion 32 are provided adjacent to each other, as shown in FIG. 4A, the pattern printing layer 2 is laminated on the paper layer 1 of the base material. A liquid-repellent varnish layer 3 is applied in a pattern on the layer 2, and a surface gloss varnish layer 4 is further applied thereon.

  The surface gloss varnish layer 4 is repelled by the liquid-repellent varnish at the portion where the pattern-like liquid-repellent varnish layer 3 is present, and becomes a mat portion 31 having a matte appearance in appearance. Further, the portion without the liquid repellent varnish layer 3 is uniformly applied without being repelled to form a glossy portion 32 having a glossy feeling.

  On the other hand, in the sealing part in which the hot melt adhesive of the front side plate 12, the left side plate 13 and the right side plate 14 of the paper container 100 is applied and the adhesive application unit 17 is provided, as shown in FIG. As described above, the pattern printing layer 2 may or may not be provided on the paper layer 1, but a liquid repellent varnish layer 3 is provided in a pattern by applying a liquid repellent varnish.

  A hot melt adhesive is applied over the liquid repellent varnish layer 3 to provide a hot melt adhesive layer 5. Then, in the part with the liquid repellent varnish layer 3, the hot melt adhesive is laminated so as to be peelable, so that when the part pasted with the hot melt adhesive is peeled off, the liquid repellent varnish and the hot melt adhesive are removed. Can be easily peeled off and the adhered adhesive force can be adjusted.

  A method for manufacturing the paper container 100 of this example will be described below.

  The pattern printing layer 2 is provided on the front surface of the paper layer 1 by offset printing. Furthermore, the liquid-repellent varnish layer 3 is provided in a pattern, preferably by offset printing with the same printer, in order to align it. The liquid-repellent varnish layer 3 is provided not only on the outer surface of the paper container 100 but also on the sealed portion using the same varnish.

  Further, a surface gloss varnish is applied to provide a surface gloss varnish layer 4. At this time, in a portion where the pattern-like liquid-repellent varnish layer 3 is present, the surface gloss varnish is repelled by the liquid-repellent varnish and is scattered in a spot-like shape. Become. Further, the portion without the liquid repellent varnish layer 3 is uniformly applied without being repelled to form a glossy portion 32 having a glossy feeling.

  Next, by blanking, a blank as shown in the development view of FIG. 2 is created, and a hot melt adhesive is applied to the sealing portion and the sticking plates 16, 16, 16, 16, and the sticking plates 25, 25, An adhesive application unit 17 is provided.

  At this time, since the liquid repellent varnish layer 3 is provided in a pattern on the front side plate 12, the left side plate 13, and the right side plate 14 of the sealing portion, the adhesive application unit 17 is applied. Where the liquid repellent varnish layer 3 is present, the adhesive is laminated so as to be peelable.

  After applying the hot-melt adhesive, the front side plate 12, the left side plate 13, and the right side plate 14 are set up perpendicular to the bottom plate 11, and the sticking plates 16, 16, 16, 16 are placed on the front side. It sticks to each back surface of the side plate 12 and the back side plate 15 via a hot melt adhesive.

  Next, the top plate 21 is tilted, the front lid side plate 22 is stuck to the front side plate 12, the pasting plates 25 and 25 are bent, and the lid left side plate 23 and the lid right side plate 24 are respectively stuck to the pasting plate 25. , 25, and the left side face plate 13 and the right side face plate 14, and the box is made.

  The pattern printing layer 2 is provided by offset printing with an offset printing ink. In particular, an ultraviolet curable ink is preferably used. The liquid-repellent varnish used for the liquid-repellent varnish layer 3 includes a silicone wax-based additive as a repellent, and an ultraviolet curable varnish whose main component is an acrylic ester monomer or ogomer. Preferably used.

  As the surface gloss varnish used for the surface gloss varnish layer 4, an ultraviolet curable surface gloss varnish generally used in offset printing is used. The hot melt adhesive used for the hot melt adhesive layer 5 is not particularly limited, but an ethylene / vinyl alcohol hot melt adhesive can be preferably used.

As described above, the method for producing a paper container according to the present invention makes the surface glossy varnish repelled by varnish that does not adhere to the adhesive provided in a pattern to adjust the adhesive strength at the sealing portion, and surface decoration. Since the varnish to be dispersed and matted is simultaneously formed with the same liquid repellent varnish, the process can be shortened and the cost can be reduced.

DESCRIPTION OF SYMBOLS 100 ... Paper container 10 ... Body 11 ... Bottom plate 12 ... Front side plate 13 ... Body left side plate 14 ... Body right side plate 15 ... Rear side plate 16, 16 , 16, 16 ... Adhering plate 17 ... Adhesive application part 18 ... Liquid repellent varnish application part 20 ... Lid 21 ... Top plate 22 ... Lid front side plate 23 ... Lid left side plate 24 ... Lid right side plate 25, 25 ... Adhering plates 26, 27, 28 ... Easy cut separation line 29 ... Easy cut line 31 ... Matte part 32 ... Glossy part DESCRIPTION OF SYMBOLS 1 ... Paper layer 2 ... Pattern printing layer 3 ... Liquid-repellent varnish layer 4 ... Surface gloss varnish layer 5 ... Hot-melt adhesive layer

Claims (1)

A paper container having a paper base and a sealing portion adhered with a hot melt adhesive,
A pattern printing layer, a patterned liquid repellent varnish layer, and a surface gloss varnish layer are applied in this order to the outer surface of the paper container, and the surface gloss varnish layer is repelled on the liquid repellent varnish layer. And having surface decorations scattered in spots,
The sealed portion is coated with the patterned liquid-repellent varnish layer and the hot-melt adhesive layer in this order, and the paper can be peeled between the hot-melt adhesive layer and the liquid-repellent varnish layer. A method of manufacturing a container,
The method for producing a paper container , wherein the pattern-shaped liquid-repellent varnish layer on the outer surface and the pattern-shaped liquid-repellent varnish layer on the sealing portion are applied simultaneously. .

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