JP4899531B2 - Packaging materials and packaging containers - Google Patents

Description

  The present invention relates to a packaging material and a packaging container that make it easy for a user to recognize an opening position.

  Packaging containers such as confectionery and cosmetics have been devised that are easily opened by providing perforations or a zippered drawer. Such an unsealed portion is printed with an indication that it is an unsealed portion (for example, “open mouth”, “OPEN”, etc.), or is printed in a color different from other regions, so that The user can recognize that it is an unsealed part.

  In addition, Braille or embossing is provided at the opening part of the packaging container to make it easier for the user to recognize the opening part when opening the packaging container even in a dark place, It has been devised to make it easier to recognize. For example, Patent Document 1 discloses a blister container in which an unsealed portion is provided with embossing in Braille.

On the other hand, Patent Document 2 discloses a mat processed printed matter imparted with designability by having an uneven feeling and a processing method thereof.
JP 2004-315015 A JP 2003-181370 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a new packaging material and packaging container that make it easy for a user to recognize the opening position. Furthermore, it aims at providing the said packaging material and packaging container which can be manufactured in a simple process.

  The packaging material of the present invention that solves the above-described problems has a portion that becomes an opening portion, and has a region having a surface roughness different from that of another region at least in one portion of the opening portion or the vicinity thereof. And

  According to this invention, the surface roughness of the unsealed part (indicating the part where cutting or unsealing is started) such as a packaging container or shrink label manufactured from the packaging material or the vicinity thereof is different from other areas. The tactile sensation when the user touches the opening portion or the vicinity thereof is different from other positions such as the packaging container, so that the user can easily recognize the opening portion. Therefore, when opening a packaging container or the like even in a dim place, the user can easily recognize the opening portion, and a person with a blindness can easily recognize the opening portion of the packaging container or the like.

  In the packaging material of the present invention, one of the region having a surface roughness different from the other region and the other region has fine irregularities on the surface, and the other has a smooth surface. And

According to the present invention, for example, at least one of the unsealed portion or the vicinity thereof has a rough tactile surface (mat portion) having fine unevenness, and the other region has a smooth and smooth tactile feel. It becomes the surface (gross part). Alternatively, the mat portion and the gloss portion are formed in the reverse relationship to that described above. Therefore, when the user touches from other areas of the packaging material to the opening or its vicinity, the tactile sensation changes from smooth to rough (from rough to smooth), and the user recognizes the opening of the packaging container or the like. It becomes easy to do.

  The packaging material of the present invention is characterized in that the region having fine irregularities on the surface partially has the fine irregularities.

  According to this invention, by having fine unevenness partially, the boundary between the surface having a fine unevenness (mat portion) and the smooth surface (gross portion) is increased, and when the user touches, It becomes easy to recognize that there is an uneven surface. This makes it easier for the user to recognize the position of the opening portion of the packaging container or the like.

  In the packaging material of the present invention, the region having fine irregularities on the surface is a portion with at least one pattern of vertical stripes, horizontal stripes, diagonal stripes, polka dots, lattice patterns, corrugations, grid patterns, or staggered patterns In particular, it has the fine irregularities.

  According to this invention, the packaging material has a surface that is partially uneven with at least one pattern of vertical stripes, horizontal stripes, diagonal stripes, polka dots, lattice patterns, corrugations, grid patterns, or staggered patterns. , The boundary between the surface with a fine unevenness (mat portion) and the smooth surface (gross portion) increases, and it becomes easier to recognize that there is an uneven surface when touched by the user. . Thus, the user can easily recognize the opening part such as the packaging container.

  In the packaging material of the present invention, the region having fine irregularities on the surface is formed by laminating a printing layer made of liquid-repellent ink and a coating layer made of an ultraviolet curable resin or an electron beam curable resin on a substrate. It is formed by these.

  According to this invention, the region having fine irregularities on the surface of the packaging material is formed by laminating a printing layer made of liquid-repellent ink and a coating layer made of an ultraviolet curable resin or an electron beam curable resin on the substrate. By being formed by, it can manufacture easily compared with the packaging material which gave the process which forms the braille and embossing of the past. That is, the packaging material of the present invention is a resin that is printed and coated with a liquid-repellent ink or ultraviolet or electron beam curable resin on a substrate by a conventionally known printing apparatus or coating apparatus, and irradiated with ultraviolet or electron beam. A packaging material can be produced by curing the coating and forming a coat layer. Therefore, it is not necessary to separately use a dedicated device used for embossing or the like, and the manufacturing process of the packaging material can be simplified. In addition, by forming the packaging material in this way, it is possible to produce a packaging material in which the position of the above-described opening portion is easily understood by the user without impairing the design of the packaging material itself.

  In the packaging material of the present invention, the opening portion is structured to be opened by being cut so that it can be returned to a lid, and the linear shape extends substantially perpendicular to the opening direction on the opening direction side of the opening portion. Or it has a strip | belt-shaped convex part, It is characterized by the above-mentioned.

  According to this invention, a finger of a person who opens and closes the packaging container made of the packaging material is caught by a linear or belt-shaped convex part, and after opening the packaging container, the opening part is once closed, and the opening part is resumed. It becomes easier to open when you do.

  In the packaging material of the present invention, the linear convex portion is composed of two lines extending substantially perpendicular to the opening direction and two lines connecting the respective end portions substantially parallel to the opening direction. The two lines extending substantially perpendicularly to each other are characterized by being bent convexly in directions in which their centers are separated from each other.

  According to the present invention, the distance between two lines extending substantially perpendicular to the opening direction is set to a distance similar to the thickness of a general human finger, thereby opening and closing the packaging container made of the packaging material. A person's finger is easily caught by the linear convex part, and after opening the packaging container, the opening part is once closed, and when the opening part is re-sealed, the opening becomes easier.

  The packaging container of the present invention that solves the above-mentioned problems has an opening part, and has an area having a surface roughness different from that of another area in at least one of the opening part and the vicinity thereof.

  According to the present invention, the opening portion of the packaging container (indicating the portion where cutting or opening is started) or the region in the vicinity thereof is different in surface roughness from other regions, so that the user touches the opening portion or the vicinity thereof. When the tactile sensation at the time is different from the other positions of the packaging container, the user can easily recognize the opening portion. Therefore, when opening the packaging container even in a dim place, the user can easily recognize the opening portion, and the blind person can also easily recognize the opening portion of the packaging container.

  In the packaging container of the present invention, the opening portion is structured to be opened by being cut so that the opening portion can be returned to the original, and a linear shape extending substantially perpendicular to the opening direction on the opening direction side of the opening portion. Or it has a strip | belt-shaped convex part, It is characterized by the above-mentioned.

  According to this invention, the finger of the person who opens and closes the packaging container will be caught by the linear or belt-shaped convex part, and after opening the packaging container, the opening part is once closed, and the opening part is opened again. It becomes easy to do.

According to the packaging material of the present invention, the surface roughness of the unsealed part (indicating the part where cutting or unsealing is started) of the packaging container or the like produced using this material is different from that of the other areas. The tactile sensation when the user touches the opening portion or the vicinity thereof is different from other positions of the packaging container, so that the user can easily recognize the opening portion. Therefore, when opening the packaging container even in a dim place, the user can easily recognize the opening portion, and the blind person can also easily recognize the opening portion of the packaging container. Moreover, the same effect is acquired by the packaging container of this invention.

  The packaging material and packaging container of this invention are demonstrated with reference to drawings. 1 shows a plan view of the packaging material of the present invention, and FIG. 2 shows a perspective view of the packaging container of the present invention produced from the packaging material shown in FIG. Moreover, FIG. 3 shows each example of the pattern of the area | region which has the fine unevenness | corrugation provided in the opening part of the packaging material of this invention, or its vicinity, FIG. 4 is the outline explaining the manufacturing method of the packaging material of this invention. A cross-sectional view is shown. 5 shows a plan view of the packaging material according to the modified embodiment of the present invention, and each of FIGS. 6 and 7 shows a part of the plan view of the packaging material according to the modified embodiment of the present invention.

(Configuration of packaging materials and packaging containers)
As shown in the plan view of FIG. 1, the packaging material 10 of the present invention has a portion that becomes an opening portion 11, and has a surface roughness that is different from other regions in at least one of the opening portion 11 and its vicinity. It has the area | region 12 which has. In this embodiment, the packaging material 10 becomes the packaging container 15 shown in FIG. 2 after assembly, and has an area having a surface roughness different from that of the other areas in the opening portion 11 that is the opening position of the packaging container 15. . Specifically, the unsealed portion 11 and a region in the vicinity thereof are mat portions having fine irregularities on the surface, and the other regions are gloss portions having a smooth surface. In the following, a region having fine irregularities on the surface is simply referred to as a mat portion, and a region having a smooth surface is also simply referred to as a gloss portion. Moreover, the perspective view of the packaging container 15 of FIG. 2 has shown the perspective view seen from the direction which becomes the normal back side of the packaging container 15 so that the opening part 11 is easy to see.

  As described above, in the packaging material 10, the surface roughness of the unsealed portion 11 or at least one region 12 in the vicinity thereof and the other region is made different, but the degree of the surface roughness is different from the surface roughness. It can be measured using a measuring machine (manufactured by Tokyo Seimitsu Co., Ltd.). Each surface roughness preferably has a difference of about 5 to 25 μm, but the surface roughness may be different to such an extent that the tactile sensation is different when touched by a person. Specifically, when the user touches the packaging material, the difference in surface roughness may be set to such an extent that the boundary between the rough surface area (mat portion) and the smooth area (gross portion) can be recognized. preferable. In addition, in the opening part 11 of the packaging material 10 and its vicinity, if there exists such a difference in surface roughness, the other process may be further processed. When embossing is provided in the vicinity of the opening portion, it is necessary to press at least about 0.3 to 0.5 mm, so that the packaging material 10 of the present invention can be easily manufactured by printing. Can do.

  The region 12 having a surface roughness different from that of the other regions is at least one of a position that becomes the opening portion 11 and its vicinity when the packaging material is assembled into a packaging container. The region having a surface roughness different from the other regions depends on the size of the packaging container after completion, but can be, for example, a region around 40 mm from the opening portion 11.

  The mat portion described above can be partially formed. The pattern or pattern when the mat portion is partially formed is not particularly limited. For example, vertical stripes, horizontal stripes, diagonal stripes, polka dots, lattice patterns (square or rectangular check patterns), corrugated patterns, grid patterns, or staggered patterns It can be formed by at least one pattern of a lattice shape. FIG. 3A shows an example of diagonal stripes, and FIG. 3B shows an example of a lattice pattern. Further, this pattern may be a pattern in which a mat portion is formed only in the opening portion 11 or in the vicinity thereof in accordance with the pattern of the entire packaging container 15. In this way, when the mat portion is formed by stripes or other patterns, the width P1 of the mat portion is set to 0.8 mm or more, preferably about 1 to 2 mm, as shown in FIG. The width P2 of the gloss part between the parts is preferably about 1 to 5 mm.

Further, the mat portion and the gloss portion on the surface of the packaging material described above may have a relationship in which positions (regions) are reversed. Also in this case, the user of the packaging container can recognize that the tactile sensation is different by touching the boundary between the mat portion and the gloss portion, and can recognize the opening portion of the packaging container.

  Although not shown, the packaging material of the present invention is not limited to the packaging material 10 used for the box-shaped packaging container 15 as shown in FIGS. 1 and 2 and can be applied to packaging materials used for various packaging containers. . Examples of such a packaging container include a bag-shaped packaging container, a gobble-top container such as a milk pack, a blister container, a container that peels off a lid, and the like. A region having a surface roughness different from that of other regions is provided in the opening portion of such various containers. In the case of a gobeltop type container or a bag-shaped packaging container, it is possible to open from multiple locations, but by providing areas with different surface roughness only at the appropriate opening position, the user may be in the wrong position. Can be prevented from opening. As shown in the right center portion of FIG. 1 and the right end portion of FIG. 2, in the case of a packaging material (packaging container) having a zipper-shaped opening portion, areas having different surface roughness can be provided around the tip of the zipper. That's fine. In addition, when providing the area | region where surface roughness differs in the front-end | tip of a zipper, it is preferable to provide partially in a pattern form. Moreover, the size of the packaging material 10 and the packaging container 15 of the present invention is not limited, and can be various sizes depending on what is packaged.

  Although not shown, the packaging material of the present invention can also be applied to packaging materials used for shrink labels provided around PET bottles and bottles. In this case, the surface roughness that is different from other regions in the vicinity of the perforation and the like (in the present invention, the opening portion) that is included for removing the shrink label from the PET bottle, bottle, etc. A region having The region having a surface roughness different from that of the other region can be, for example, within a circle or rectangle of about 1 cm from the opening portion. In this region, as with the packaging material 10 of the packaging container 15 described above, it can be partially provided or can be provided entirely.

(Method for manufacturing packaging materials)
Although the manufacturing method of the packaging material 10 of this invention is not specifically limited, It can manufacture simply with the method shown below.

  As shown in FIG. 4A, first, a pattern layer 22 on which a pattern or the like is printed is provided on the surface of the base material 21, and then a region 25 having fine irregularities on the surface of the pattern layer 22 is formed. A printing layer 23 made of liquid repellent ink is provided on the portion, and finally, a coating layer 24 made of an ultraviolet curable resin or an electron beam curable resin is provided on the surface of the pattern layer 22 and the printing layer 23. At this time, as shown in FIG. 4B, the portion provided with the printing layer 23 becomes a mat portion 25 having a feeling of unevenness by repelling a resin (coating agent) forming the coating layer 24 processed thereon. The portion where the printing layer 23 is not provided becomes the gloss portion 26 as it is. The packaging material 10 manufactured in this way will be specifically described.

  Examples of the base material 21 that can be used in the packaging material 10 of the present invention include paper mainly made of paperboard, plastic sheets, plates, and metal plates. Although the thickness of the base material 21 is not specifically limited, Although it sets suitably according to the use packaged, it is about 50 micrometers-about 3 mm normally.

The pattern layer 22 provided on the substrate 21 is a layer on which a pattern, a display, and the like are printed. The pattern layer 22 is printed and coated using a known electron beam or ultraviolet curable ink. As the ink for the pattern layer 22 and the coating liquid, an ink having good adhesion to the printing layer 23 described later is selected. Although the formation method of the pattern layer 22 will not be specifically limited if it can print and apply the above-mentioned ink, It is provided by offset printing (lithographic printing), gravure printing, etc. In addition, by forming the pattern layer 22 and a printing layer 23 described later by offset printing, it is possible to reduce the odor of a solvent or the like used in the ink. The pattern layer 22 is preferably provided on the substrate 21 in an amount such that the dry film thickness is about 1 to 10 g / m 2 and 1 to 10 μm.

  Next, a printing layer 23 made of liquid repellent ink is provided at a position where fine irregularities are formed on the pattern layer 22. An ultraviolet curable resin or an electron beam curable resin to be the coating layer 24 on the printed layer 23 is repelled by the printed layer 23 to form a mat portion 25 having fine irregularities. By having the mat portion 25 and the other gloss portion 26 on the packaging material 10, the person who touched the boundary between the portions 25 and 26 recognizes that there is a difference in the surface roughness, and the opening portion 11 described above. Can be easily recognized.

  The printing layer 23 is printed and coated using an electron beam or ultraviolet curable ink. As the electron beam or ultraviolet curable ink for the printing layer 23, 0 to 10% by mass with respect to the main agent with at least a polymer, a monomer, and a photopolymerization initiator mixed with polyethylene wax and reactive silicone as an auxiliary agent. Use what you added. This auxiliary agent is added to make the ink for the printing layer 23 liquid repellent. As the ink for the printing layer 23 and the coating liquid, an ink having good adhesion with the printing layer 23 described later is selected. Although the formation method of the printing layer 23 will not be specifically limited if it is a method which can print and apply the above-mentioned ink, Offset printing (lithographic printing), gravure printing, etc. are provided. The print layer 23 is preferably provided on the pattern layer 22 in an amount such that the dry film thickness is about 1 to 10 g / m 2 and 1 to 10 μm. When the pattern layer 22 and the printing layer 23 are made of an electron beam or an ultraviolet curable resin, the layers 22 and 23 are cured by irradiating with an ultraviolet ray or an electron beam after providing these layers. On the other hand, when the pattern layer 22 and the print layer 23 are not made of an electron beam or an ultraviolet curable resin, the pattern layer 22 and the print layer 23 are provided and then cured by drying or the like.

  Examples of the main polymer include methyl acrylate, methyl methacrylate (hereinafter, “methyl acrylate” and “methyl methacrylate” are referred to as “(meth) acrylate”. The same applies hereinafter), ethyl (meth) acrylate, n-butyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, lauryl (meth) acrylate, isobornyl (meth) acrylate, dicyclopentenyl (meth) acrylate, N-vinylpyrrolidone, styrene, etc. A so-called monofunctional monomer having one polymerizable vinyl group in one molecule; ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexane A so-called bifunctional compound having two polymerizable vinyl groups in one molecule such as all di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate and dipropylene glycol di (meth) acrylate. Monomer: 3 or more polymerizable vinyl groups in one molecule such as trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, tris (acryloxyethyl) isocyanurate And so-called polyfunctional monomers.

  Furthermore, oligomers such as unsaturated polyesters, polyester (meth) acrylates, polyether (meth) acrylates, polyol (meth) acrylates, epoxy (meth) acrylates, and urethane (meth) acrylates can be used as oligomers.

Although it is not necessary to provide any particular restriction as the main photopolymerization initiator, a substance that can be dissolved in the polymerizable composition is preferable, and for example, a radical polymerization initiator or a cationic polymerization initiator may be used. Examples of such a photopolymerization initiator include acetophenones such as p-butyltrichloroacetophenone, 2,2′-diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one; benzophenone, 4,4′-bisdimethylaminobenzophenone ketones such as 2-chlorothioxanthone, 2-methylthioxanthone, 2-ethylthioxanthone, 2-isopropylthioxanthone, benzyldimethyl ketal, hydroxycyclohexyl phenyl ketone; benzoin, benzoin methyl ether, benzoin isopropyl Examples include ethers, benzoins such as benzoin isobutyl ether, Michler benzoyl benzoate, α-amyloxime ester, tetramethylmeurum monosulfide, etc. The

  Further, a photosensitizer may be used in combination with the photopolymerization initiator. Examples of such a photosensitizer include n-butylamine, n-dibutylamine, triethylamine, triethylenetetramine, and triethanolamine.

  After the print layer 23 is provided in a predetermined portion on the picture layer 22, the coat layer 24 is provided on the entire surface of the picture layer 22 and the print layer 23. The coat layer 24 is formed using a coating agent containing an ultraviolet curable resin or an electron beam curable resin.

  The coating agent used for the coating layer 24 is not particularly limited as long as it causes a repellency phenomenon when coated on the printing layer 23, and a coating agent meeting the purpose may be selected as appropriate. The coating agent containing such an ultraviolet curable resin or an electron beam curable resin is a mixture of at least a polymer, a monomer, a photopolymerization initiator, and the like, similar to the main component of the ink used for the printing layer 23. Furthermore, what added the surface conditioning agent as an adjuvant to this can be used. Examples of the surface conditioner include a cellulose leveling agent and a natural wax lubricant. Moreover, it is good also as the transparent coating layer 24 without putting a coloring agent in a coating agent, and it is good also as a semi-transparent coating layer 24 by adding a coloring agent of white or light color (for example, titanium oxide etc.) to a coating agent. .

  The formation method of the coating layer 24 will not be specifically limited if it is a method which can apply the above-mentioned coating agent, It provides with a conventionally well-known coating method. In addition, after the coating agent is applied on the substrate 21, the coating layer 24 is cured by irradiating with ultraviolet rays or electron beams. The coat layer 24 is preferably provided in such an amount that the film thickness of the gloss portion 26 after curing is about 3 to 20 g / m 2 and 3 to 20 μm.

  Thus, the packaging material 10 which has both the mat part 25 and the gloss part 26 in the coat layer 24 and can easily recognize the opening part 11 of the packaging container 15 can be produced.

  In the method for manufacturing the packaging material 10, the pattern layer 22, the printing layer 23, and the coating layer 24 can be formed in separate steps, but can also be processed in one step by an offset printing machine. In this offset printing machine, a printing unit, an ultraviolet (electron beam) irradiation device, a coater unit, and an ultraviolet (electron beam) irradiation device are installed from upstream. The image layer 22, the printing layer 23, and the coating layer 24 can be provided in one step by an offset printing machine having such a unit and apparatus.

  In addition, as a method for curing the ultraviolet ray or electron beam curable ink or coating agent of the pattern layer 22, the printing layer 23, and the coating layer 24 of the present invention, when the ultraviolet ray curable ink or coating agent is used, it is known. It is possible to cure by irradiating them using an ultraviolet irradiation device (such as mercury lamp, ultraviolet lamp, incandescent lamp, halogen lamp). Further, when an electron beam curable ink or a coating agent is used, it can be cured by irradiating them using a known device capable of irradiating various electron beams, radiation, and the like.

Note that the pattern layer 22 is a layer arbitrarily provided in the packaging material 10 of the present invention, but usually the pattern layer 22 is often displayed on the packaging material 10 in order to display a description of the pattern and contents, components, and the like. Is provided.

  The mat portion 25 can also be formed by applying a thick and rough ink by silk screen printing, gravure printing, or the like.

  As shown in FIG. 4B, the packaging material 10 in which the layers 22, 23, and 24 are formed on the base material 21 by printing and coating is cut into a shape in which the packaging container 15 shown in FIG. A predetermined position is folded and assembled by sticking the predetermined position, and the packaging container 15 shown in FIG. 2 is manufactured.

(Deformation of packaging material)
With reference to FIG. 5 thru | or FIG. 7, the deformation | transformation form of the packaging material and packaging container of this invention is demonstrated. As shown in FIG. 5 and FIG. 2 described above, the unsealed part 11 of the packaging material 10 in a modified form has a structure that can be opened by being cut and returned to its original form. And in the opening direction (refer arrow in FIG. 5) side of the opening part 11 of this packaging material 10, it has the linear convex part 16 extended substantially perpendicular to an opening direction. The shape of the linear convex portion 16 is not particularly limited, and can be various shapes as shown in FIGS. 5 and 6. Further, the packaging material 10 may have a belt-like convex portion 17 as shown in FIG. 7 instead of the linear convex portion 16.

  For example, as shown in FIG. 5, the linear convex portion 16 includes two lines 16 a and 16 b extending in a direction substantially perpendicular to the opening direction and two lines 16 c that connect each end thereof in parallel with the opening direction. , 16d, and the two lines 16a, 16b extending in a direction substantially perpendicular to the opening direction can be bent in a direction that is substantially away from the center (elongated barrel shape). Moreover, the linear convex part 16 is, for example, as shown in FIG. 6A, a flat U-shape 16f when the opening part 11 is viewed upward, and as shown in FIG. 6B, the opening part 11 Each shape of a flat U-shape 16g seen from below can be obtained. Further, as shown in FIG. 6C, the linear convex portion 16 includes a flat U shape with the opening portion 11 viewed upward and a flat U shape with the opening portion 11 viewed downward. A shape 16h like a rugby ball with which the end is in contact, as shown in FIG. 6 (d), a flat U shape with the unsealed portion 11 looking up and a flat U shape with the unsealed portion 11 looking down The shape 16i may be a shape obtained by deforming the X character in contact with each central portion. Thus, the linear convex part 16 will not be specifically limited if it is a shape which has the part extended substantially perpendicular | vertical to an opening direction, It can be set as various shapes.

  Among these, as shown in FIG. 5, the line-shaped convex portion 16 has two lines 16a and 16b extending in a direction substantially perpendicular to the opening direction, and two lines connecting each end thereof in a direction substantially parallel to the opening direction. It is preferable that the two lines 16a and 16b, which are composed of 16c and 16d and extend in a direction substantially perpendicular to the opening direction, are bent in a direction in which their centers are separated from each other. According to the linear convex portion 16 having such a shape, it becomes easy for a user of a packaging container manufactured from the packaging material to place a finger, and it is particularly easy to resume sealing.

  Although the width W1 of such a linear convex part 16 is not specifically limited, Usually, it is about 0.3-1.8 mm. Moreover, although not shown in figure, the height which the linear convex part 16 rises from the other surface of the packaging material 10 is not specifically limited, Usually, it is about 0.5-2 mm. Moreover, the position of the linear convex part 16 is not particularly limited, but is preferably located on the opening direction side with respect to the opening part 11 on the surface having the opening part 11 and at the approximate center on the left and right in the drawing.

  The vertical width W2 in the figure of the linear convex portion 16 having the shape shown in FIG. 5 is not particularly limited because it is appropriately selected depending on the balance between the overall size of the packaging container and the degree of finger contact. About 15 mm. In addition, in the edge part shown by 16c or 16d, W2 can be about 1-10 mm and the linear convex part 16 can be made into a barrel shape. Although the horizontal width W3 on the figure in the linear convex part 16 of the shape shown in FIG. 5 is not specifically limited, it is about 10-100 mm. For example, in the linear convex portion 16, the overall vertical width W2 can be about 10 mm, the end vertical width W2 can be about 3 mm, and the horizontal width W3 can be about 51 mm.

  Thus, when the shape of the linear convex part 16 is made to be approximately the same as the size of one person's finger, the user of the packaging container made from the packaging material 10 resumes the opening part 11. It is easy to put it on your finger, and it becomes easy to seal again. In addition, since the size of a finger | toe or a nail | claw changes according to the age group etc. of the user of the packaging container produced, you may change each width W1, W2, W3, and height of the linear convex part 16. FIG.

  Next, each linear projection 16 shown in FIGS. 6A to 6D will be described. The U-shaped linear protrusion 16f as shown in FIG. 6A can have a lateral width W4 in the drawing of, for example, about 10 to 100 mm. Further, the vertical width W5 in the drawing can be set to, for example, about 5 to 20 mm. In the case of this shape, the right and left in the figure are usually symmetrical. The convex portion 16f with this shape is easy to put on a finger when resealing.

  The horizontal width W4 and the vertical width W5 of the inverted U-shaped linear convex portion 16g as shown in FIG. 6B are also set in the same range as the U-shaped one as shown in FIG. it can. In the case of this shape, the right and left in the figure are usually symmetrical. The convex portion 16g having this shape is easy to put a finger when closing the opening portion 11, that is, when covering the packaging container.

  The linear convex part 16h of the shape which made the rugby ball horizontal as shown in FIG.6 (c) can make lateral width W6 on a figure into about 10-100 mm, for example. Moreover, the vertical width W7 on a figure can be about 5-20 mm, for example. In the case of this shape, the left and right and the top and bottom in the figure are usually symmetrical. The convex portion 16h having this shape is likely to be put on a finger when resealing and when closing the opening portion 11 and closing the lid.

  The substantially X-shaped linear protrusion 16i as shown in FIG. 6D can have a lateral width W8 in the drawing of, for example, about 10 to 100 mm. Moreover, the vertical width W9 on the drawing can be set to, for example, about 10 to 20 mm. Note that the center line in the vertical and horizontal directions where the upper U-shape and the lower inverted U-shape overlap each other has the same width W1 as the other lines. In the case of this shape, the left and right and the top and bottom in the figure are usually symmetrical. The convex portion 16i having this shape is likely to be put on a finger when resealing and when closing the opening portion 11 and closing the lid.

  The linear protrusions 16f, 16g, 16h, and 16i shown in FIGS. 6A to 6D may have the same arc shape or similar arc shape (substantially the same radius of curvature). . For example, in the linear protrusion 16f, the horizontal width W4 can be set to about 31 mm, and the vertical width W5 can be set to about 8 mm.

  The formation method of the linear protrusion 16 is not particularly limited, but embossing is performed from the back side of the packaging material 10 with an embossing device or the like, the line is traced with a tool having a protrusion, and the packaging material 10 is removed from the base material. It can be formed by embossing at the same time. When the packaging material 10 is manufactured, it is incorporated in a process of putting ruled lines.

  In addition, for example, as shown in FIG. 7, the belt-like convex portion 17 includes two lines 17 a and 17 b extending in a direction substantially perpendicular to the opening direction, and two lines connecting the respective end portions thereof substantially in parallel with the opening direction. The two lines 17a and 17b, which are composed of 17c and 17d and extend in a direction substantially perpendicular to the opening direction, project the entire inside of each line bent in a direction that is substantially away from the center (a long and narrow barrel shape). It can be set as the shape made into the part. Moreover, the belt-like convex part 17 is good also as a substantially rectangular shape which is substantially the same shape as the shape shown in FIG. As described above, the belt-like convex portion 17 is not particularly limited as long as it has a shape having a portion extending substantially perpendicularly to the opening direction, and can have various shapes.

  Although the height (not shown) where such a strip-shaped convex part 17 swells from the other surface of the packaging material 10 is not specifically limited, Usually, it is about 0.3-2.0 mm. Further, the position of the belt-like convex portion 17 is not particularly limited, but is preferably located on the opening direction side with respect to the opening portion 11 on the surface having the opening portion 11 and at substantially the center in the right and left in the drawing.

  Although the vertical width W10 on the figure in the strip-shaped convex part 17 of the shape shown in FIG. 7 is not specifically limited, it is about 5-20 mm. In addition, in the edge part shown by 17c or 17d, W10 can be about 2-5 mm and the strip | belt-shaped convex part 17 can be made into a barrel shape. The horizontal width W11 on the drawing of the belt-like convex portion 17 having the shape shown in FIG. 7 is not particularly limited, but is about 10 to 100 mm. For example, in the belt-like convex portion 17, the overall vertical width W10 can be about 10 mm, the vertical length W10 of the end can be about 3 mm, and the horizontal width W11 can be about 51 mm. In this way, the shape of the belt-like convex portion 17 is made to be approximately the same as the size of one finger of a person, so that it is easy to resume sealing or cover, as with the linear convex portion 16.

  The method for forming the belt-shaped convex portion 17 is not particularly limited, but by embossing from the back side of the packaging material 10 with an embossing device or the like, embossing at the same time when the packaging material 10 is punched from the base material, etc. Can be formed. When the packaging material 10 is manufactured, it is incorporated in a process of putting ruled lines.

  A packaging container 15 can be formed as shown in FIG. 2 using each packaging material 10 of the above-described modified form.

The top view of the packaging material of this invention is shown. The perspective view of the packaging container of this invention produced from the packaging material of FIG. 1 is shown. Each example of the pattern of the area | region which has the fine unevenness | corrugation provided in the opening part of the packaging material of this invention or its vicinity is shown. The schematic sectional drawing explaining the manufacturing method of the packaging material of this invention is shown. The top view of the packaging material of the deformation | transformation form of this invention is shown. Each example of a part of top view of the packaging material of the deformation | transformation form of this invention is shown. The example of a part of top view of the packaging material of the deformation | transformation form of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Packaging material 11 ... Opening part 12 ... Area | region which has surface roughness different from another area | region 15 ... Packaging container 16, 16a, 16b, 16c, 16d, 16f, 16g, 16h, 16i ... Linear convex part 17 ... Belt-like convex portions 17a, 17b, 17c, 17d ... Lines indicating the ends of the belt-like convex portions 21 ... Base material 22 ... Picture layer 23 ... Print layer 24 ... Coat layer 25 ... Mat portion (region having fine irregularities on the surface) )
26 ... Gloss part (area with smooth surface)

Claims (7)

It has a part to be an opening part, and has an area having a surface roughness different from other areas in at least one of the opening part or the vicinity thereof,
One of the region having a surface roughness different from the other region and the other region has fine irregularities on the surface, and the other has a smooth surface.
Furthermore, the area | region which has the fine unevenness | corrugation on the said surface is formed by laminating | stacking the coating layer which consists of a printing layer by liquid-repellent ink, and an ultraviolet curable resin or an electron beam curable resin on a base material. Packaging material characterized by. The packaging material according to claim 2, wherein the region having fine irregularities on the surface partially has the fine irregularities . The region having fine irregularities on the surface has the fine irregularities partially by at least any one pattern of vertical stripes, horizontal stripes, diagonal stripes, polka dots, lattice patterns, corrugations, grid patterns, or staggered patterns. The packaging material according to claim 1 or 2, characterized by the above . The unsealed portion is structured to be opened by being cut so that it can be returned to a lid, and has a linear or belt-like convex portion extending substantially perpendicular to the unsealing direction on the unsealing direction side of the unsealing portion. The packaging material according to any one of claims 1 to 3 . The linear convex portion is composed of two lines extending substantially perpendicular to the opening direction and two lines connecting each end portion thereof substantially parallel to the opening direction, and extending two substantially perpendicular to the opening direction. The packaging material according to claim 4, wherein the lines are bent convexly in directions in which their centers are separated from each other . It has an opening part, and has an area having a surface roughness different from other areas in at least one of the opening part or the vicinity thereof,
One of the region having a surface roughness different from the other region and the other region has fine irregularities on the surface, and the other has a smooth surface.
Furthermore, the area | region which has the fine unevenness | corrugation on the said surface is formed by laminating | stacking the coating layer which consists of a printing layer by liquid-repellent ink, and an ultraviolet curable resin or an electron beam curable resin on a base material. A packaging container characterized by. The unsealed portion is structured to be opened by being cut so that it can be returned to a lid, and has a linear or belt-like convex portion extending substantially perpendicular to the unsealing direction on the unsealing direction side of the unsealing portion. The packaging container according to claim 6 .

Images