JP4184924B2 - Lid with hot water hole - Google Patents

Description

  The present invention provides a lid that closes the opening when the lid material is peeled moderately half of the container mouth to form an opening, hot water is poured into the container from the opening, and steamed instant noodles etc. stored in the container are cooked The present invention relates to a lid member with a hot water hole that prevents the material from warping upward.

Conventionally, like a container packed with instant fried noodles, etc., a lid that peels about half from the container, forms an opening, pours hot water into the container, steams instant noodles, etc. As a material, it is an upper lid made of a laminated sheet in which paper, polyolefin film, aluminum foil, and polyolefin film are laminated from the top layer, and the perforation or tear that can become a hole for hot water discharge by breaking through the top layer paper. An upper lid of an instant food container having a structure that is formed to reach a depth including the second polyolefin layer is known (see, for example, Patent Document 1).
Japanese Utility Model Publication No.57-21911

  However, in the case of the upper lid having the above structure, the upper lid adhered to the container mouth is grasped by gripping the knob portion to form an opening, and hot water is poured into the container from the opening, and then the peeled upper lid is returned to open the opening. When steaming and cooking the contents such as instant noodles, the steam of hot water hits the inner surface of the upper lid, curling occurs, and both sides of the knob on the upper lid that has closed the opening warp upward, and the upper lid knob There is a disadvantage that a gap is formed between the upper lid and the container on both sides of the container so that the opening cannot be completely closed and the steaming effect is deteriorated.

  The purpose of the present invention is to form an opening by peeling the outer lid half of the container mouth moderately, injecting hot water into the container from the opening, returning the opened outer lid to close the opening and steaming instant noodles etc. When opening the outer lid, the both sides of the knob are warped upward, and a gap is generated between the outer lid and the container on both sides of the knob so that the steaming effect is reduced. It is providing the cover material with a hot-water hole.

  It consists of a laminate in which the outer lid and the inner lid are detachably laminated, and a knob portion protruding outward is formed on the outer peripheral edge, and two protruding portions are formed on both sides of the knob portion. An arc-shaped outer lid peeling start cut is formed adjacent to the inside of the knob and the protrusion, and a plurality of hot water cuts are formed on the peripheral edge opposite to the knob. An opening cut is formed in a region between the lid peeling start cuts, and the inner surface of the outer lid is outside of the lid cutting start cut and the lid material outside the hot cut cut and the opening cut. In the lid material in which the release layer is formed in the area surrounded by the periphery, the lid material is penetrated so as to follow the outer lid peeling start cut at a position a certain distance outside the outer lid peeling start cut inside the protrusion. It is a cover material with a hot water cut hole of the structure in which the penetration cut | interruption which formed was formed.

  The release layer is a second release layer having a high peel strength in a band shape perpendicular to the line connecting the knob and the center of the lid material in the region between the hot water cut and the opening cut. The region other than the region where the mold layer is formed is configured as a first release layer having a small peel strength.

  The release layer is peeled into a plurality of strips in the direction perpendicular to the line connecting the knob and the center of the lid material in the outer region between the opening cut line in the orthogonal direction and the line connecting the knob and the center of the lid material. The second release layer has a high strength, and the region other than the region where the second release layer is formed is a first release layer having a low peel strength.

  The release resin is halftone printed so that the first release layer has a halftone dot area ratio of 70 to 100% and the second release layer has a halftone dot area ratio of 60 to 85%. It is the structure formed by printing using a plate.

  The said laminated body is a structure which does not contain aluminum foil in a laminated structure.

  By using the lid material with a hot water cutout hole of the present invention, when the container is opened and hot water is injected into the container and steamed instant noodles etc. stored in the container, hot water is injected into the container through the opening. When the opened outer lid is returned and the opening is closed and left standing, the outer lid that closes the opening warps upward on both sides of the knob and steaming occurs due to a gap between the outer lid and the container on both sides of the knob. It is possible to improve the steaming effect by preventing the effect from decreasing.

  In the invention according to claim 2, when the grip is held and the outer lid is peeled off to about half of the container mouth part in the region of the first release layer to form the opening and then the peeling is continued, the second release layer Since peeling becomes heavy when reaching the region, peeling of the lid material can be stopped in a half-open state.

  In the invention according to claim 3, when the outer lid is peeled off, the peeled outside at the boundary between the first release layer that can be peeled off with a weak force and the second release layer that requires a strong force to peel off. Since the lid is bent stepwise, the rigidity of the outer lid is lowered and the dead hold property is improved.

  In the invention according to claim 4, the first is different in the releasability by using one type of releasable resin only by changing the halftone dot area ratio of the halftone dot printing plate used for forming the release layer. The release layer and the second release layer can be easily formed.

  In the invention according to claim 5, since the aluminum foil is not included, it is possible to use a metal detector for the inspection of the product to which the lid member is attached, and to prevent an accident that metal foreign matter is mixed in the product. Can do.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing the first embodiment, FIG. 2 is a bottom view showing the first embodiment, FIG. 3 is a plan view showing a release layer formed on the inner surface of the outer lid of the first embodiment, and FIG. 1 is a cross-sectional view taken along the line II of FIG. 1, FIG. 5 is a plan view showing a release layer formed on the inner surface of the outer lid of the second embodiment, and FIG. 6 is a lid material of the first embodiment attached to a container. It is a plan view of a state in which about half of the outer lid is peeled off, an opening is formed in the inner lid, hot water is poured into the container from the opening, the outer lid is closed, and through-cuts on both sides of the knob are hooked to the periphery of the container. 2 is a knob, 3 is a projecting portion, 4 is an opening for peeling off the outer lid, 5 is a through cut, 6 is an opening cut, 6a is an inward projection, 7 is a hot water cut, and 8 is a first separation. A mold layer, 9 is a second release layer, 10 is a container edge, 11 is an outer lid, and 12 is an inner lid.

  The first embodiment of the present invention is as shown in FIGS. The top view of the cover material of 1st Embodiment is as showing in FIG. 1, and consists of the structure by which the outer cover 11 and the inner cover 12 were laminated | stacked so that peeling was possible, and the knob | pick part 2 which protrudes outward to an outer periphery is Two protrusions 3 are formed on both sides of the knob 2 and a through cut 5 is formed adjacent to the inside of the protrusion 3 so as to extend along the outer periphery of the cover member. Yes.

  The bottom view of the lid material of the first embodiment is as shown in FIG. 2, and the inner lid 12 of the lid material is adjacent to the inside of the knob portion 2 and the protruding portion 3 and is a circle along the outer periphery of the lid material. An outer lid peeling start cut 4 is formed in an arc shape, and a plurality of hot water cutting cuts 7 are formed on the peripheral edge opposite to the knob 2, and between the hot water cutting cut 7 and the outer lid peeling start cut 4. An opening notch 6 having an inward projection 6a on the knob 2 side is formed in the region. The outer lid peeling start cut 4, the hot water cut 7 and the opening cut 6 are formed so as to penetrate the inner lid 12, and the through cut 5 is formed so as to penetrate the lid member.

  The shape of the release layer formed on the inner surface of the outer lid 11 in the first embodiment is as shown in FIG. The first release layer 8 and the second release layer are formed in the region surrounded by the lid material periphery inside the outer lid peeling start cut 4 on the inner surface of the outer lid 11 and outside the hot water cut 7 and the opening cut 6. A mold release layer made up of the mold layer 9 is formed, and the second mold release layer 9 is orthogonal to the line connecting the knob 2 and the center of the lid material in the region between the opening cut 6 and the hot water cut 7. In the region outside the opening notch 6 perpendicular to the line connecting the knob 2 and the center of the lid member, a plurality of lines perpendicular to the line connecting the knob 2 and the center of the lid are formed. The first release layer is formed in a region other than the region where the second release layer 9 is formed. In the region where the first release layer 8 is formed, the outer lid 11 can be peeled off with a weak force, but in the region where the second release layer 9 is formed, a strong force is required to peel off the outer lid 11. It is set to be.

  The width of the strip-shaped second release layer 9 formed in the region between the opening cut 6 and the hot water cut 7 is preferably about 10 mm, and is perpendicular to the line connecting the knob 2 and the center of the lid. The widths of the first release layer 8 and the second release layer 9 formed in the region outside the opening notches 4 are not particularly limited, but the width of the first release layer 8 is about 3 mm, It is preferable to form the release layer 9 with a width of about 7 mm and an interval of about 10 mm. As described above, by alternately forming the first release layer 8 that can be peeled off with a weak force and the second release layer 9 that requires a strong force to be peeled off, the region of the first release layer 8 is formed. In this case, the outer lid 11 and the inner lid 12 are easily peeled, but in the region of the second release layer 9, the outer lid 11 and the inner lid 12 are difficult to peel off and must be peeled off strongly. Since the outer lid 11 is peeled along the boundary line between the second release layer 9 and the second release layer 9, the repulsive force of the peeled outer lid 11 is weakened and the dead hold property is obtained. It is possible to prevent the opening formed after returning to step 1 from being blocked. Therefore, the lid material of the first embodiment can be configured so as not to include an aluminum foil in the laminated configuration.

  The laminated configuration of the first embodiment is as shown in FIG. 4, and the outer lid 11 and the inner lid 12 are inside the outer lid peeling start cut 4 on the inner surface of the outer lid 11, and the opening cut 6 and hot water are provided. The outer lid is detachably laminated through a release layer composed of a first release layer 8 and a second release layer 9 formed in a region surrounded by the periphery of the lid material outside the cut notches 7. The peeling start cut 4, the opening cut 6, and the hot water cut 7 are formed so as to penetrate the inner lid 12. Although not shown, the through cut 5 is formed so as to penetrate the lid member.

  The second embodiment of the present invention is basically the same as the first embodiment except that the shape of the release layer formed on the inner surface of the outer lid 11 is as shown in FIG. 5 and is different from the first embodiment. It is the same configuration. As shown in FIG. 5, the shape of the release layer composed of the first release layer 8 and the second release layer 9 formed on the inner surface of the outer lid 11 in the second embodiment is as follows. A band-shaped second release layer 9 is formed in a region perpendicular to the line connecting the knob 2 and the center of the lid material in the region between the cuts 7, and the region other than the region where the second release layer 9 is formed is the first region. In this configuration, one release layer is formed. The lid material of the second embodiment is used as a lid material including an aluminum foil in the laminated configuration.

  After the lid material of the first embodiment is attached by heat bonding to the mouth of a container containing instant noodles etc. and packaged, the knob 2 of the lid material is grasped and the outer lid 11 is removed from the cut 4 for starting the outer lid peeling. The first release layer 8 formed on the inner surface of the outer lid 11 and the inner lid 12 are peeled from each other, and then the first release layer 8 and the first release layer 8 formed alternately on both sides of the opening cut 6 2 Peeling is performed between the release layer 9 and the inner lid 12, and peeling is stopped at the second release layer 9 formed between the opening cut 6 and the hot water cut 7, and the outer lid 11 is in a half-open state. Opening is made to form an opening, hot water is poured into the container from the opening, the outer lid 11 is put back to close the opening, and the through cuts 5 formed on both sides of the knob 2 as shown in FIG. The portion is opened and hooked on the container edge 10 to fix the outer lid 11 and steam cooking. Thus, by opening the part of the through cut 5 and hooking it to the container edge 10 to fix the outer lid 11, the outer lid 11 which has closed the opening is exposed to the outside on both sides of the knob 2 by steam of hot water. The steaming effect can be enhanced by preventing warping and forming a gap between the outer lid 11 and the container on both sides of the knob 2 of the outer lid 11.

  In the case of the lid material of the first embodiment, even in the case of a laminated structure that does not include an aluminum foil in the laminated body that constitutes the lid material, the outer lid 11 is about half of the container mouth from the location of the outer lid peeling start cut 4. When peeled and opened, the first release layer 8 and the second release layer 9 are alternately formed in a strip shape in a region outside the opening notch 6 perpendicular to the line connecting the knob 2 and the center of the lid. Therefore, when the outer lid 11 is peeled from the inner lid 12, the outer lid 10 and the inner lid 20 are easily peeled in the region of the first release layer 8, but in the region of the second release layer 9. Since the lid 11 and the inner lid 12 are difficult to peel off and need to be peeled off strongly, the outer lid 11 is bent along the boundary line between the first release layer 8 and the second release layer 9, and the peeled outer lid 11 is peeled off. Is bent into a step shape, and the dead hold property of the outer lid 11 is improved, so that the opening formed by the peeling of the outer lid 11 is blocked by the outer lid 11. It can be prevented.

  Also in the case of the lid material of the second embodiment, after attaching and packaging the mouth part of the container containing instant noodles etc. by thermal bonding, the grip part 2 of the lid material is grasped and the outer lid 11 is used for starting the outer lid peeling. The outer lid 11 is peeled off from the cut 4 to the second release layer 9 formed between the opening cut 6 and the hot water cut 7 to form an opening, and hot water is injected into the container from the opening. After that, the outer lid 11 is put back to close the opening, the through-cut 5 is opened and hooked on the container edge 10 to prevent the outer lid 11 from curling and improve the steaming effect of instant noodles etc. be able to. The cover material of 2nd Embodiment is used for the cover material which contains aluminum foil in a laminated structure.

  As the releasable resin for forming the first release layer 8 and the second release layer 9, a simple substance or a mixture of nitrified cotton, polyamide resin, polyester resin, acrylic resin, butyral resin, or the like can be used. If necessary, a small amount of silicone or the like may be added. The release layer is formed by printing on the paper surface by gravure printing or the like using the ink made of the above resin. The release layer is formed into a halftone dot pattern using a halftone dot printing plate having a dot area ratio of 65 to 100%, thereby using the first and second release layers using one type of printing plate. A layer can be formed. The first release layer is formed using a halftone dot printing plate having a dot area ratio of 70 to 100%, and the second release layer is a halftone dot printing plate having a dot area ratio of 65 to 85%. Formed. The second release layer formed using a halftone dot printing plate having a small halftone dot area ratio has a poor release property because the area of the release resin formed in a halftone dot shape is small, and the outer lid and the inner lid The first release layer formed using a halftone dot printing plate having a large halftone dot area ratio has a large area of the releasable resin formed in a halftone dot shape. As a result, the releasability is good and the peel strength between the outer lid and the inner lid is reduced, so that it is easy to peel off.

  As the laminated structure of the outer lid 11, a single paper or a laminated body of a biaxially stretched film and paper can be used. As the paper used for the outer lid 11, it is preferable to use a coated paper having a basis weight of 50 to 150 g. The rigidity of the lid material can be obtained, and after the outer lid and the inner lid are laminated, the inner half of the lid material is half-finished. By cutting, it becomes easy to form the outer lid peeling start cut, the opening cut, and the hot water cut so as to penetrate only the inner lid and reach the paper layer. As the laminated structure of the inner lid 12, a structure composed of a polyethylene layer, a biaxially stretched film and a heat-adhesive resin layer, or a structure composed of a polyethylene layer, an aluminum foil and a heat-adhesive resin layer can be used. As the biaxially stretched film, biaxially stretched polyethylene terephthalate (PET), biaxially stretched polypropylene (OPP), biaxially stretched nylon (ON), or the like can be used. As the heat-adhesive resin layer, a resin mainly composed of an ethylene-vinyl acetate copolymer that can be melted by heat and extruded and laminated can be used. The thermoadhesive resin layer may be directly extruded and laminated with an anchor coating on a biaxially stretched film, or may be laminated via a polyethylene layer.

  The laminated structure of the cover material does not include an aluminum foil. For example, PET / dry lamination (DL) / printing layer / single art paper / release layer / polyethylene (PE) / PET / PE / thermal adhesive resin Layer, PET / DL / printing layer / single art paper / release layer / PE / OPP / PE / thermal adhesive resin layer, printed layer / single art paper / release layer / PE / PET / PE / thermal adhesive resin For example, PET / DL / printing layer / one piece art paper / release layer / PE / aluminum foil (AL) / PE / thermoadhesive resin layer, printing layer / piece Art paper / release layer / PE / AL / PE / thermal adhesive resin layer. As the laminated structure of the lid material, after the outer lid and the inner lid are laminated, the cut for hot water cut through the inner lid by the half cut from the inner side of the inner lid, the opening for opening, the outer lid peeling start cut, the outer Since the auxiliary slit for starting lid peeling is formed, the inner surface of the outer lid must be a paper layer.

The top view which shows 1st Embodiment. The bottom view which shows 1st Embodiment. The top view which shows the mold release layer formed in the inner surface of the outer cover of 1st Embodiment. II sectional view taken on the line of FIG. The top view which shows the mold release layer formed in the inner surface of the outer cover of 2nd Embodiment. About half of the outer lid of the lid member of the first embodiment attached to the container is peeled to form an opening in the inner lid, hot water is poured into the container from the opening, the outer lid is closed, and through cuts on both sides of the knob portion The top view of the state hooked on the periphery of the container.

Explanation of symbols

2 Picking portion 3 Protruding portion 4 Cut for starting peeling of outer lid 5 Through cut 6 Opening cut 6a Inward projection 7 Hot water cut 8 First release layer 9 Second release layer
10 Container edge
11 outer lid
12 Inner lid

Claims (5)

It consists of a laminate in which the outer lid and the inner lid are detachably laminated, and a knob portion protruding outward is formed on the outer peripheral edge, and two protruding portions are formed on both sides of the knob portion. An arc-shaped outer lid peeling start cut is formed adjacent to the inside of the knob and the protrusion, and a plurality of hot water cuts are formed on the peripheral edge opposite to the knob. An opening cut is formed in a region between the lid peeling start cuts, and the inner surface of the outer lid is outside of the lid cutting start cut and the lid material outside the hot cut cut and the opening cut. In the lid material in which the release layer is formed in the area surrounded by the periphery, the lid material is penetrated so as to follow the outer lid peeling start cut at a position a certain distance outside the outer lid peeling start cut inside the protrusion. The cover material with a hot water cut hole characterized by comprising the structure in which the penetration cut | interruption which formed was formed. The release layer is a second release layer having a high peel strength in a band shape perpendicular to the line connecting the knob and the center of the lid material in the region between the hot water cut and the opening cut. 2. The lid member with a hot water cut hole according to claim 1, wherein the region other than the region where the mold layer is formed is configured as a first release layer having a low peel strength. In the region outside the opening notch in the direction perpendicular to the line connecting the knob and the center of the lid material, the release layer is peeled into a plurality of strips perpendicular to the line connecting the knob and the center of the lid material. 3. The structure according to claim 1, wherein the second release layer has a large release layer, and the region other than the region where the second release layer is formed is a first release layer having a low peel strength. A lid with a hot water hole. The release resin is halftone printed so that the first release layer has a halftone dot area ratio of 70 to 100% and the second release layer has a halftone dot area ratio of 60 to 85%. The lid member with a hot water cut hole according to any one of claims 1 to 3, wherein the lid member has a configuration formed by printing using a plate. The said laminated body consists of a structure which does not contain aluminum foil in a laminated structure, The lid | cover material with a hot water cut hole in any one of Claims 1-4 characterized by the above-mentioned.