TWI724992B - Cover - Google Patents

Abstract

Provided is a cover that can easily perform drainage work. The cover system is formed by laminating a sheet-like substrate and surface material of the same shape. An opening lug is formed in one part of the peripheral edge, a peeling lug is formed in another part of the peripheral edge, and a base material is formed in the peeling area. One or more drain holes of the side penetrating the base material are half-cut. The peeling area is a part of the area adjacent to the peeling lug and is an area that does not contain the unsealing lug. It is in the vicinity of the peeling lug in the peeling area. A half cut for peeling is formed that penetrates the base material from the base side, and the base material and the surface material are at least releasably laminated in the peeling area outside the area surrounded by the drain hole half cut.

Description

Cover

The present invention relates to a lid for sealing containers for foods and the like.

Foods such as instant cup noodles are filled with hot water at the time of consumption and wait for a predetermined time to pass. Therefore, it is necessary to perform hot water treatment (heat conditioning) such as soaking before consumption. Fig. 19(a) is a perspective view showing an example of such a packaging container for food. The hot water treatment system is as shown in the plan views of Figure 19(b) and Figure 19(c). The lid 901 is partially detached from the container 920. After that, hot water is injected from the exposed opening and covered with the lid 901 again. Wait for a predetermined time in the state of the opening.

In the case of foods such as instant fried noodles and instant pasta, it is necessary to drain the poured hot water before eating. At this time, in order to prevent the food from being discharged from the container 920 together with hot water during draining, the user needs to reduce the opening area of the lid 901 or the like. However, for example, in the case of a container with a circular cross-sectional shape in the horizontal direction, as shown in FIG. 19(b) and FIG. 19(c), since the lid 901 is only slightly detached, the area of the opening is sharp. Therefore, it is difficult to appropriately set the area of the opening.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Unexamined Publication No. 58-151572

[Summary of the invention]

The present invention was completed in view of such circumstances, and its object is to provide a cover that can easily perform drainage work.

One aspect of the present invention to solve the above-mentioned problems is a cover formed by laminating a sheet-like base material and a surface material of the same shape, and an unsealing lug is formed on a part of the peripheral edge, Another part is formed with a peeling lug, and one or more drain holes penetrating the base material from the side of the substrate are formed in the peeling area. The peeling area is a part of the area adjacent to the peeling lug. In an area not containing the unsealing lug, in the vicinity of the peeling lug in the peeling area, a peeling start half cut is formed that penetrates the substrate from the side of the substrate, and the substrate and the surface material are at least The peeled layer is in an area other than the area surrounded by the half-cut of the drain hole in the peeling area.

According to the present invention, since the surface material of the cover is partially peeled off and the drain holes are exposed in the base material, drainage work can be easily performed.

101, 201, 301, 401, 901: cover

102: Substrate

103: surface material

104: Lugs for opening

106: Drain hole with half cut

107: Peeling lugs

108: Drainage Department

109: Use half cut for peeling start

110: drain hole

120, 920: container

205: cutting line

410: Concave

A: Stripping area

B: Ink

C: Paper

D: Filler varnish

E: Polyethylene

L: Aluminum

M: Adhesive

P: Peeling position

S: Sealant

V: Peeling varnish

Fig. 1 is a plan view of a lid according to the first embodiment of the present invention.

Fig. 2 is a bottom view of the cover according to the first embodiment of the present invention.

Fig. 3 is a perspective view of a lid and a container related to the first embodiment of the present invention.

Fig. 4 is a cross-sectional view of the lid and the container according to the first embodiment of the present invention.

Fig. 5 is a half-cut display view of various types of drain holes and a schematic enlarged cross-sectional view of the cover according to the first embodiment of the present invention.

Fig. 6 is a view showing the state of use of the cover according to the first embodiment of the present invention.

Fig. 7 is a view showing the state of use of the cover according to the first embodiment of the present invention.

Fig. 8 is a view showing the state of use of the cover according to the first embodiment of the present invention.

Fig. 9 is a plan view of a lid according to a second embodiment of the present invention.

Fig. 10 is a schematic enlarged cross-sectional view of a lid according to a second embodiment of the present invention.

Fig. 11 is a diagram showing various types of cut lines related to the lid of the second embodiment of the present invention.

Fig. 12 is a plan view of a lid according to a third embodiment of the present invention.

Fig. 13 is a bottom view of a lid according to a third embodiment of the present invention.

Fig. 14 is a schematic enlarged cross-sectional view of a lid according to a third embodiment of the present invention.

Fig. 15 is a view showing the state of use of the cover according to the third embodiment of the present invention.

Figure 16 is about the state of use of the lid of the third embodiment of the present invention Show graph.

Fig. 17 is a diagram showing various types of cut lines of the lid body in the third embodiment of the present invention and a diagram showing the state of use of the lid body.

Fig. 18 is a plan view of a lid according to a fourth embodiment of the present invention.

Fig. 19 is a perspective view of a conventional lid and a container, and a top view showing the state of use of the lid.

(First Embodiment)

Hereinafter, the first embodiment of the present invention will be described. Fig. 1 is a plan view of a cover 101 according to this embodiment. However, FIG. 2 is a bottom view of the cover 101. FIG. 3 is a perspective view of the lid body 101 and the container 120 sealed by the lid body 101. Fig. 4 is a cross-sectional view of the lid 101 and the container 120 along the line A-A' shown in Fig. 3. The lid 101 seals the periphery of the opening of the container 120 and seals the container 120. In addition, the lid 101 is formed of a laminate composed of a base 102 sealed in the container 120 and a surface material 103 laminated so as to be peelable from the base 102.

The shape of the cover 101 will be described with reference to FIGS. 1 to 4. The cover body 101 is formed by laminating a sheet-like base material 102 and a surface material 103 of the same shape. A tab 104 for opening is formed in a part of the peripheral edge of the lid body 101. Since the force applied to the unsealing lug 104 is also transmitted to the base material 102, by grasping and lifting the unsealing lug 104, the lid 101 together with the base material 102 can be torn from the container 120 to be unsealed (opening) . In addition, as an example, a peeling tab 107 is formed at a peeling position symmetrical to the opening lug 104 with respect to the center of the lid in the peripheral edge portion. In the peeling area A, one or more of the substrates 102 penetrated from the substrate 102 side are formed. A half-cut 106 for the drain hole is used, and the peeling area A is an area adjacent to a part of the peeling lug 107 and is an area that does not include the unsealing lug 104. As long as the drain hole can be drained as described later, the half-cut 106 for the drain hole can be round, elliptical, polygonal, track (track) type, curved and have a closed curve shape such as a chamfered polygon, drop shape, etc., or it may be Shapes other than closed curves such as cross-shaped cuts. Fig. 5(a) shows various shapes of the half-cut 106 for the drain hole. In addition, at the edge of the peeling lug 107 side of the peeling area A, a peeling start half cut 109 penetrating the base 102 from the base 102 side is formed. The peeling start half cut 109 may be formed between the peeling lug 107 and the drain hole half cut 106. For example, it may be formed on the peeling lug 107 according to the shape of the peeling area A, or it may be formed along the main body of the cover 101. The fixed range of the outer edge. In addition, the base material 102 and the surface material 103 are laminated in the peeling area A so as to be peelable.

Fig. 5(b) is an enlarged cross-sectional view schematically enlarging the part of the cover 101 surrounded by the one-dot chain line in Fig. 4. The layer structure of the lid body 101 will be described with reference to FIG. 5(b). The surface material 103 of the cover 101 is a single piece of paper C, metal foil, plastic film, or a laminate containing any of these. In the case of the surface, back or laminate, there may be ink B-prints between the layers. The printed layer of the system. In this embodiment, as an example, it has a layer structure of ink B/paper C from the side formed as the outside of the container 120 toward the inside. Furthermore, in the peeling area A, in addition to the area surrounded by the drain hole half-cut 106, there is a layer composition of filler varnish D/peeling varnish V (varnish) inside the paper layer, and this area is formed with the substrate 102 as Can be peeled off.

The base material 102 of the cover 101 is a monomer of paper C, metal foil, plastic film, or a laminate containing any of these, the surface, the back or In the case of a laminate, a printed layer printed with ink B may be provided between the layers. As an example, in this embodiment, the side in contact with the surface material 103 faces the inside of the container 120 and is composed of a layer of extruded polyethylene E/aluminum foil L/adhesive (EMAA) M/sealant (sealant) S.

The filler varnish is used to prevent the peeling varnish from impregnating the paper to be coated. The filler varnish system can use, for example, nitrocellulose and urethane-based resin as main components. In addition, the filler varnish may not be applied. The release varnish system preferably uses, for example, polyamide-based, silicon-based, polypropylene (polyacrylic)-based, polyester-based, polyolefin-based, rubber-based resin systems as the main component, and wax-containing components are used in Less than 5 wt%. Since the wax component is less than 5% by weight, the wax component can be prevented from volatilizing in a large amount and causing an odor that may hinder eating. A tackifier and the like can also be added. Since the filler varnish and the peeling varnish are not applied to the area surrounded by the drain hole half-cut 106, the area of the substrate 102 can be prevented from falling off in the container 120.

An example of the sequence of hot water treatment (heating conditioning) will be explained. First, as shown in FIG. 6, the unsealing lug 104 is lifted, the lid 101 and the base material 102 are torn from the container 120, and the seal is partially unsealed. At this time, depending on the situation, it is necessary to take out individual packages such as ingredients and seasonings. Then, after injecting hot water, the opened part of the lid body 101 is pressed again to prevent the heat from escaping from the opening, and wait a predetermined time. Next, the peeling lug 107 is lifted, and the base material 102 and the surface material 103 start to peel through the peeling start half cut 109, and the surface material 103 is peeled from the base material 102 in the entire peeling area to complete the peeling. At this time, the portion of the base material 102 surrounded by the drain hole half-cut 106 is removed along with the surface material 103, so it remains on the base of the container 120 The material 102 is formed with drain holes 110. That is, by peeling off the surface material 103 of the peeling area A (the portion surrounded by a dotted chain line in FIG. 7 ), the draining portion 108 composed only of the base material 102 is formed in this area. Finally, as shown in FIG. 8, after draining water from the drain hole 110, by removing the entire cover 101 including the drain portion 108 from the container 120, the hot water-treated food can be eaten. In this way, the surface material 103 of the lid body 101 is partially peeled off to expose the drain holes in the base material 102, so that the drainage work can be performed easily and safely.

(Second Embodiment)

The second embodiment of the present invention will be described below. FIG. 9 is a plan view of the cover body 201 of this embodiment. Hereinafter, the same reference numerals are appropriately assigned to the same or corresponding elements. The cover 201 is different from the cover 101 of the first embodiment in that a cut line 205 that divides at least a part of the surface material 103 from the surface material 103 side is formed in the peeling area. Due to the cutting line 205, the surface material 103 has weak resistance to bending, and when peeling is performed, the surface material 103 can be rolled up to facilitate peeling. Furthermore, the surface material 103 can be easily maintained in a rolled state.

In this embodiment, as an example, the cut line 205 is tied to the entire layer of the surface material 103, so that a straight line stitching hole with a cutting length of 5 mm and a cutting connection length of 1 mm extends from one outer end of the cover 101 to the other. One outer end is formed by arranging 5 rows at intervals of 1 mm. FIG. 10 shows a schematic enlarged cross-sectional view of the cover material 201 in this example. The cutting length, cutting tie length, number, shape, etc. of the cutting line 205 are not limited to the above-mentioned forms, and can be varied in various ways if they do not prevent the peeling of the surface material 103 and the exposure of the drain hole 110. Furthermore, the cutting system can be formed through the surface material 103 or formed on the surface material Part of 103. The cutting may not be a sewing thread hole, for example, it may also be a continuous line cutting a partial layer of the surface material 103. Various types of cut lines 205 are shown in FIG. 11.

In addition, as an example, as shown in FIG. 10, the cover 201 is provided with a printed layer printed with ink B or the like on the surface material 103 and the area including the cut line 205, but it may not be provided. The area containing the cut line 205 is the case with a printed layer printed with ink B, etc. If the oil contained in the food that penetrates the content from the cut line 205, it will also become inconspicuous due to the color of the ink B. Detrimental to beauty.

(Third Embodiment)

The third embodiment of the present invention will be described below. FIG. 12 is a plan view of the lid body 301 of this embodiment. In addition, FIG. 13 is a bottom view of the cover 301. The cover body 301 is the cover body 201 of the second embodiment, and it is assumed that the surface material 103 is cut along the cutting line 205. Moreover, compared with the cover 201, the number of half-cuts 106 for drain holes is increased.

Furthermore, as an example, as shown in FIG. 14, the cover 301 does not have a printed layer on the surface material 103 in the area including the cut line 205, but may have a printed layer.

From the part where the cut line 205 is formed, in the area including the area on the side where the drain hole half cut 106 is formed, in addition to the area surrounded by the drain hole half cut 106, the inside of the paper layer further has a filler varnish D /Layer composition of the release varnish V, this region is formed so as to be peelable from the base material 102.

In this embodiment, as an example, the cutting line 205 is attached to the entire layer of the surface material 103, from one outer end of the cover 301 to the other outer end, so that The straight line stitching holes with a cutting length of 5 mm and a cutting tie length of 1 mm are formed in 5 rows at intervals of 1 mm. In addition, it is preferable that the row located in the center of the 5 rows of stitching holes is a portion where the end edge of the coating area of the self-peeling varnish is located about 2 mm inside the coating area. Then, by providing at least a part of the cutting line 205 in an area within 20 mm from the edge of the peelable area, the cutting operation of the surface material 103 described later can be smoothly connected to the peeling operation. The cutting line 205 is preferably set in such a way that a cutting part is formed at the outer end of the cover body 301. According to this, when the surface material 103 is cut, the cut portion becomes the start of the cut, and it is easy to cut. In addition, the cutting length, cutting tie length, number, shape, etc. of the cutting line 205 are not limited to the above-mentioned form, and it is the same as in the second embodiment, and can be variously deformed. Furthermore, the cutting may be formed through the surface material 103, or may be formed in a part of the surface material 103 layer. In addition, the cutting can also be a continuous thread instead of a stitched stitch hole.

An example of the sequence of hot water treatment (heating conditioning) will be described. First, as shown in FIG. 15, the unsealing lug 104 is lifted, the lid 101 and the base material 102 are torn from the container 120, and the seal is partially unsealed. At this time, take out the individual packages of ingredients, seasonings, etc. as necessary. Then, after injecting hot water, the opened part of the lid body 101 is pressed again to prevent the heat from escaping from the opening, and wait a predetermined time. Next, the peeling lug 107 is lifted, and the base 102 and the surface material 103 start to peel through the half-cut 109 for peeling start. When the peeling reaches the end of the cutting line 205, the surface material 103 can be cut along the cutting line 205. As shown in FIG. 16, the peeled part of the surface material 103 is completely separated. At this time, since the portion of the base material 102 surrounded by the drain hole half cut 106 is removed along with the surface material 103, the base material 102 remaining in the container 120 is formed with a drain hole 110. That is, by peeling , Remove the surface material 103 of the area of the cover 101 where the half-cut 106 of the drain hole is formed (the part surrounded by a dotted chain line in FIG. 16), and the drain part 108 composed of only the base material 102 is formed in this area, and it can be The draining part 108 was confirmed visually. Finally, as shown in FIG. 17, after draining from the drain hole 110, by removing the entire cover 101 including the drain portion 108 from the container 120, the hot water-treated food can be eaten. When draining water, since the draining part 108 can be visually observed, it is possible to perform draining work easily and safely while confirming the status of draining.

(Fourth Embodiment)

The fourth embodiment of the present invention will be described below. FIG. 18 is a plan view of the lid body 401 of this embodiment. It is different from the cover 301 of the third embodiment in that recesses 410 are formed at the two outer ends, that is, both ends of the cutting line 205, so as to be separated from the peeling lugs 107 along the peripheral edge of the cover 401. . With the recess 410, after the surface material 103 is pulled up and peeled to expose the drain hole, when cutting along the cutting line 205, the tensile force is concentrated on the end of the cutting line 205, making it easy to obtain the start of cutting. At the end, the surface material 103 can be cut more easily.

As an example, the concave portion 410 is formed in a shape of a straight line, a curved line, or a combination of these, so that the maximum depression from the outer edge of the cover 401 becomes 2 mm or more. Furthermore, it is preferable that a plurality of cutting lines 205 are arranged on the inner side of the recess 410 in such a way that the cutting part is connected to the inside of the recess of the recess 410, or is not connected to the recess 410 and within a distance of less than 3 mm from the recess 410. When the cutting part is provided at a distance exceeding 3 mm, the surface material 103 may not be connected to the cutting line 205 and cut, so that it may not be cut smoothly.

Above, the embodiments of the present invention have been described, but the present invention is not limited to these. For example, the shape of the container and lid material can be four corners Shape, oval and other deformations.

[Example]

Examples are explained below.

(Example 1)

In Example 1, as shown in FIGS. 1 and 2, in the lid body 101 of the first embodiment, the diameter of the lid body 101 was set to 180 mm. Then, the half-cut 106 for drain holes is set to 5 pieces of 8 mm×6 mm rail type, and the filler varnish D and the peeling varnish V are not applied to the inner area 1 mm or more from the outer periphery.

(Example 2)

In Example 2, in the lid body 201 of the second embodiment shown in FIG. 9, the diameter of the lid body 201 was 180 mm. Then, the half-cut 106 system for drain holes is set to 5 pieces of 8 mm×6 mm rail type, and the filler varnish and the peeling varnish are not applied to the area 1 mm or more inside from the outer periphery. The cutting line 205 is made so that a straight line stitching hole with a cutting length of 5mm and a cutting connection length of 1mm is arranged in 5 rows at 1mm intervals on the entire surface of the surface material 103 from one outer end of the cover 201 to the other outer end. form.

(Example 3)

In Example 3, in the lid body 301 of the third embodiment shown in FIGS. 12 and 13, the diameter of the lid body 301 was 180 mm. Then, the half-cut 106 system for drain holes was set to 11 rails of 8 mm×6 mm, and the filler varnish and the peeling varnish were not applied to the area 1 mm or more inside from the outer circumference. In addition, the cutting line 205 is arranged in such a manner that the center of the 5 rows of stitching holes is located from the edge of the coating area of the peeling varnish to 2 mm inside the coating area, and a cutting area is formed at the outer end of the cover 301.

(Example 4)

In Example 4, in the lid body 401 of the fourth embodiment shown in FIG. 18, the diameter of the lid body 401 was set to 180 mm. Then, the half-cut 106 system for drain holes was set to 11 rails of 8 mm×6 mm, and the filler varnish and the peeling varnish were not applied to the area 1 mm or more inside from the outer circumference. In addition, the cutting line 205 is made with 5 rows of sewing thread holes, and the center is located from the edge of the coating area of the peeling varnish to 2 mm inside the coating area, and a cutting area is formed in the recess 410 provided at the outer end of the cover 401 Way to set.

(Comparative example)

The comparative example is a cover body that cannot be peeled off between layers and is related to the conventional technology.

For the above Examples 1 to 4, the evaluation of the draining operation was performed. As a result, in Examples 1 to 4, the surface material 103 can be reliably peeled, and the drain hole 110 can be exposed without any abnormality. In addition, by draining water through the drain hole 110, the drain can be stably drained at an appropriate speed, and the contents are not discharged. Furthermore, in Example 2, when the surface material 103 is peeled off, the surface material 103 can be easily rolled up, and the peeling can be performed more smoothly than in Example 1. In contrast, the comparative example partially separates the lid from the container to form an opening for drainage. However, during the draining operation, an opening of an appropriate size cannot be formed. If the opening is too small, the drainage speed will be slow and the opening will be slow. If it is too large, even the contents will be discharged along with the hot water and cannot be drained properly. As described above, the effects of the present invention can be confirmed.

Furthermore, in Examples 3 and 4, when the drain hole was exposed, the surface material 103 could be peeled off and removed reliably. Therefore, it is possible to visually confirm the situation during drainage, and it is possible to perform drainage more assuredly and easily than in Examples 1 and 2. Furthermore, in Example 4, when the surface material 103 is cut from the end of the cutting line 205 along the cutting line, the tensile force is concentrated through the recess 410 The end can be cut more smoothly than in Example 3.

[Industrial availability]

The present invention is useful for sealing lids of containers for foods and the like.

101: Lid

102: Substrate

103: surface material

104: Lugs for opening

106: Drain hole with half cut

107: Peeling lugs

109: Use half cut for peeling start

120: container

Claims (4)

A cover formed by laminating a sheet-like base material and surface material of the same shape. An opening lug is formed in a part of the peripheral edge, and a peeling lug is formed in another part of the peripheral edge, and is formed in the peeling area There is one or more drain holes penetrating the substrate from the substrate side for a half-cut (half-cut), and the peeling area is a part of the area adjacent to the peeling lug and does not contain the unsealing lug Area, in the vicinity of the peeling lug in the peeling area, a half-cut for peeling starting from the substrate side penetrating the substrate is formed, and the substrate and the surface material are at least releasably laminated in the peeling area In the area outside the area enclosed by the half-cut of the drain hole, a cutting line for cutting at least a part of the surface material from the side of the surface material is formed in the peeling area, and the cutting line is tied to the surface material so as to traverse the surface material. The two outer ends of the cover body are divided into the peeling area and other areas from one end to the other end. The cutting line is a sewing thread hole, and the cutting part constituting the sewing thread hole is connected to The two outer ends of the surface material are connected and formed, and the two outer ends are respectively formed with recesses so as to be separated from the peeling lug along the peripheral edge of the cover. The cutting line is set on the inner side of the recess, and the cutting line is the cutting length in the entire layer of the surface material 5mm, a straight line stitching hole with a cutting length of 1mm, and the cover is formed by 5 rows arranged at intervals of 1mm from one outer end to the other outer end of the cover. The recess is formed by a straight line, a curved line, or the like. The combined shape is formed in such a way that the maximum depression from the outer edge of the cover body becomes 2mm or more, and the plurality of cut lines formed are connected with the inside of the depression of the depression or not connected with the depression and Set on the inner side of the recess within a distance of 3mm or less from the cut. As in the cover of claim 1, at least a part of the cutting line is formed on the side of the peeling area from the edge of the area where the base material and the surface material are releasably laminated. Such as the cover of claim 1 or 2, wherein in the surface material, at least the area including the cut line is provided with a printing layer printed with ink. The cover of claim 1 or 2, wherein in the area where the substrate and the surface material are releasably laminated, a release varnish containing 5% by weight or less of a wax component is applied to the surface of the surface material on the substrate side.

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