JP2019094090A - Food packaging container and container with lid - Google Patents

Abstract

The present invention provides a food packaging container and a lidded container that can suppress slipping of food in a container during transportation and display work and can suppress stickiness of food. On the peripheral edge of the food placing surface 5, peripheral ridges 10a and 10b are provided so as to circulate around the peripheral part, and the food surrounded by the peripheral ridges 10a and 10b is provided. A plurality of inner ridges 20 extending in a predetermined direction are provided on the inner region of the mounting surface 5 so as to protrude upward. The tops of the peripheral ridges 10a and 10b and the tops of the inner ridges 20 are respectively provided. A plurality of projections and depressions are formed, and the protruding amount of the inner ridge portion 20 gradually decreases from the central portion to the peripheral portion of the food placing surface 5, and the height of the inner ridge portion 20 is the food placing surface. 5 gradually decreases from the center to the periphery. [Selection] Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to food packaging containers and lidded containers, and more particularly to containers suitable for use for containing oil-rich foods.

  In recent years, the population living alone has increased. Making fried food for one person is time consuming and also uneconomical. As a result, the demand for buying side dishes at convenience stores and supermarkets is increasing. Among such side dishes, side dishes such as tonkatsu and tempura are prepared in the backyard of each store, and the prepared side dishes are provided in containers. On the other hand, because the demand for sugar beet is increasing and it is difficult to secure human resources who carry out these tasks, transport and carry in a container prepared and packaged outside the store to the store for display sales There are more things to do.

  When carrying out such transportation, carrying in, or displaying, especially in the case of oil-rich vegetables such as tonkatsu or tempura, these vegetables may slip and be displaced within the container, and furthermore, the customer When bringing it home and heating it in a oven and warming it, the oil may stick without being cut well, and there is a growing demand for improvement of these.

  The present applicant has already proposed the container described in Patent Document 1 below as a container for food packaging. Although this container is suitable for perishable food, when it contains an oil-rich food such as tonkatsu or tempura, the food becomes slippery in transportation and display operations.

  Further, in Patent Document 2 below, a plurality of inclined grooves falling to the front side and a plurality of horizontal trapezoidal ribs positioned between the inclined grooves are provided at the bottom, and fried food etc. are formed at the tops of the plurality of trapezoidal ribs. A container supporting the is described. However, the food is slippery during transportation and display work. In addition, oil removal is not sufficient, oil is likely to remain on the contact surface between the top of the trapezoidal rib and the food, and the portion of the food in contact with the top of the trapezoidal rib is easily sticky.

JP, 2010-184742, A JP 2003-192074 A

  Therefore, the present invention is made in view of the above-mentioned conventional problems, and it is an object of the present invention to provide a container for food packaging and a container with a lid which can suppress slippage of food in the container during transportation and display work and can suppress stickiness of food. I assume.

  The present invention has been made to solve the above problems, and the food packaging container according to the present invention comprises a bottom portion, a side portion extending upward from the peripheral portion of the bottom portion, and a top end portion of the side portion. A container for food packaging comprising a laterally extending flange portion, wherein the top surface of the bottom portion has a circumferential groove around a peripheral portion of the top surface of the bottom portion, and an overhead food surrounded by the circumferential groove A mounting surface is formed, and a peripheral ridge is projected upward at the peripheral edge of the food mounting surface so as to go around the peripheral edge, and the food is surrounded by the peripheral ridge. In the inner area of the surface, a plurality of inner ridges extending in a predetermined direction are provided to project upward, and a plurality of irregularities are formed on the top of the peripheral ridge and the top of the inner ridge, respectively. The amount of protrusion of the inner ridge gradually decreases from the center to the periphery of the food mounting surface, and the height of the inner ridge is Characterized in that it gradually decreases toward the peripheral portion from the central portion of Shinano surface.

  The food contained in the food packaging container of the above configuration is placed on the food mounting surface surrounded by the circumferential groove, and the top of the peripheral ridge and the inner ridge protruding from the food mounting surface. It will be supported at the top. Therefore, the contact area between the food mounting surface and the food can be reduced. In particular, the amount of protrusion of the inner ridge gradually decreases from the center to the periphery of the food placement surface, and the height of the inner ridge gradually decreases from the center to the periphery of the food placement surface Therefore, the food is mainly in contact with a portion of the total length of the inner ridge near the center of the food mounting surface and at a high height, and the contact area can be reduced. Furthermore, since a plurality of irregularities are formed on the top of the peripheral ridge and the top of the inner ridge, the food is mainly produced at the top of the ridge at the top of the peripheral ridge and the ridge. It will be in contact with the projection, and the contact area can be further reduced. Then, in the case of a food containing a large amount of oil, the oil contained in the food flows from the convex portion of the top of the peripheral ridge to the concave and flows from the convex to the concave of the top of the inner ridge. Also, the oil adhering to the top of the inner ridge flows from the high portion to the low portion of the inner ridge. Then, the oil flows from the tops of the peripheral ridges and the tops of the inner ridges to the food mounting surface and the circumferential groove. In particular, in the case of a container compatible with a range, the food can be warmed by placing it in a microwave oven with the food stored therein, but also in this case the unevenness on the top of the rim and the inner ridge The unevenness of the top of the part makes it possible to smooth off the oil of the food and to suppress the stickiness of the food. In addition, when transporting or displaying a container containing food, positional deviation of the food is suppressed by the unevenness of the top of the peripheral ridge and the unevenness of the top of the inner ridge.

  In particular, it is preferable that a notch is formed at a predetermined portion of the entire circumference of the peripheral ridge so as to divide the peripheral ridge, and oil from the food is loaded on the food through the cutout. It flows down from the surface to the circumferential groove.

  Further, the food mounting surface is preferably inclined so that the height is low from the central portion to the peripheral portion, and oil emitted from the food flows from the central portion to the peripheral portion of the food mounting surface.

  A container with a lid according to the present invention is provided with the container as described above and a lid fitted to the container.

  As described above, the peripheral ridge portion is formed on the peripheral edge portion of the food mounting surface, and a plurality of inner ridge portions having a predetermined shape are formed in the inner region thereof, and the top of the peripheral ridge portion and the inner ridge portion Since a plurality of asperities are formed on the top of the case, when a food with a large amount of oil is contained, the oil removal is good and the stickiness of the food can be suppressed. In addition, it is possible to suppress the positional deviation of the food during transportation and display work, and to prevent the deterioration of the appearance due to the positional deviation of the food.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the container for food packaging in one Embodiment of this invention. The top view of the same container. Front view of the container. AA sectional drawing of FIG. BB sectional drawing of FIG. (A) And (b) is a principal part enlarged view of the same container.

  Hereinafter, a food packaging container according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. The container in the present embodiment is a tray-like container having a smaller dimension in the height direction than the longitudinal dimension and the lateral dimension. The food to be stored is not particularly limited, but is suitable for oily foods, and is particularly suitable for fried foods such as fried chicken, tempura, fried fish, cutlet, croquettes, fried potatoes, donuts, fried bread and the like.

  The shape of the container in a plan view may have various shapes such as a circle, an ellipse, and a rectangle. In the present embodiment, as shown in FIG. 2, a container having a substantially square shape in plan view, specifically, a horizontally long rectangular container will be described. The longitudinal direction of the container is the width direction and the container short side direction, and the lateral direction of the container is the longitudinal direction and the container long side direction.

  The container is provided with a bottom surface portion 1, a side surface portion 2 rising upward from a peripheral edge portion of the bottom surface portion 1, and a flange portion 3 extending outward from an upper end portion of the side surface portion 2. The bottom portion 1 has a substantially rectangular shape in plan view corresponding to the shape of the container in plan view. The four corners of the bottom portion 1 may be chamfered in an arc shape. At the central portion of the upper surface of the bottom portion 1, a food placing surface 5 which is raised one step above is formed. The food placing surface 5 has a rectangular shape in a plan view, and a circumferential groove 6 having a predetermined width is circumferentially provided around the food placing surface 5. The circumferential groove 6 is located between the food mounting surface 5 and the side surface 2. The upper surface of the bottom portion 1 is divided into an inner region of a rectangular shape in plan view and an outer region of a predetermined width provided so as to surround the outer side, and the food mounting surface 5 constitutes an inner region. Constitute the outer region. A predetermined portion of the lower surface of the circumferential groove 6 becomes a leg 7 when the container is placed on a table or the like. The legs 7 may be formed, for example, only at the four corners, or may be formed continuously over the entire circumference, but are formed at only the four corners in the present embodiment.

  The food mounting surface 5 has a horizontally long rectangular shape corresponding to the shape of the container in a plan view, and the longitudinal dimension is shorter than the transverse dimension. The food mounting surface 5 occupies the main part of the upper surface of the bottom portion 1. The food mounting surface 5 can be said to be substantially flat as a whole, but in detail, the central portion has a shape that is slightly higher than the peripheral portion. That is, the food mounting surface 5 is highest at its central portion and is inclined downward so that its height gradually decreases from the central portion to the peripheral portion. More specifically, the food mounting surface 5 is high at the central portion in the container long side direction and low at both end portions in the container long side direction. Moreover, the food mounting surface 5 is high at the central portion in the container short side direction and low at both end portions in the container short side direction. The height difference between the central portion and the peripheral portion of the food mounting surface 5 is, for example, about 1 mm, but may be about several millimeters. In addition, the height of the food mounting surface 5 is lower than the height of the upper end portion of the flange portion 3.

<Peripheral ridges 10a, 10b>
Peripheral ridges 10a and 10b are provided on the peripheral edge of the food mounting surface 5 so as to project upward. The peripheral ridges 10a and 10b extend along the peripheral edge of the food mounting surface 5 in the form of a long line and run around the peripheral edge so as to border the peripheral edge of the food mounting surface 5. In the present embodiment, since the food mounting surface 5 is a rectangular shape having a horizontally long plan view, the peripheral ridges 10 a and 10 b are a pair of the peripheral portions of the food mounting surface 5 formed on a pair of long sides. It comprises a long side peripheral ridge 10 a and a pair of short side peripheral ridges 10 b formed on a pair of short sides of the peripheral portion of the food mounting surface 5.

  The protrusion amount of the peripheral ridges 10a and 10b with respect to the food mounting surface 5 may be various, but is, for example, about 1 to several millimeters, and the height between the central portion and the peripheral portion of the food mounting surface 5 described above Preferably, it is greater than the difference. The width of the peripheral ridges 10a and 10b is also arbitrary, but is, for example, about 1 to several millimeters at the top. The cross-sectional shape of the peripheral ridges 10a and 10b is preferably a shape that narrows gradually toward the upper side, and is preferably trapezoidal in cross section. The heights of the tops of the peripheral ridges 10a and 10b may be substantially constant over the entire circumference or may vary along the circumferential direction.

<Notches 11a and 11b>
Notches 11a and 11b are formed at predetermined positions on the entire circumference of the peripheral ridges 10a and 10b so as to divide the peripheral ridges 10a and 10b. The notches 11a and 11b are formed at the tops of the peripheral ridges 10a and 10b and are open at the upper side, and formed over the entire width from the inner edge to the outer edge of the peripheral ridges 10a and 10b It is done. It is preferable to form notches 11a and 11b in each of the pair of long side peripheral ridges 10a and the pair of short side peripheral ridges 10b. It is preferable that the bottoms of the notches 11 a and 11 b be substantially flush with the food mounting surface 5.

  The size, length, number, and arrangement of the notches 11a and 11b are arbitrary, but in the present embodiment, one pair of notch 11b is formed at the center of the peripheral ridges 10b on the short side. A plurality of notches 10a are formed in the pair of long side peripheral ridges 10a at intervals in the longitudinal direction of the peripheral ridges 10a. More specifically, a relatively large notch 11b is formed at the central portion of the pair of short side peripheral ridges 10b, and an inner ridge 20 to be described later is formed on the pair of long side peripheral ridges 10a. Relatively small notches 11a are formed at positions between each other.

<Inward ridge portion 20>
In the inner region of the food mounting surface 5, an inner protrusion 20 is provided so as to project upward. The inner area of the food mounting surface 5 is an area surrounded by the peripheral ridges 10a and 10b and is an area inside the peripheral ridges 10a and 10b. The inner area of the food support surface 5 occupies most of the food support surface 5. The inner ridge portion 20 extends in a long line along a predetermined direction. The direction in which the inner ridges 20 extend is arbitrary, but may be the container short side direction or the container long side direction, and a direction inclined at an inclination angle of 45 degrees or less with respect to the container short side direction or the container long side direction It may be. Further, the inner ridge portion 20 may extend in a straight line along the entire length, and may be curved or bent.

  In the present embodiment, as shown in FIG. 2, the inner ridges 20 generally extend along the container short side direction, and a plurality of the inner ridge portions 20 are formed at intervals in the container long side direction. It is preferable that the inner ridge 20 extend to the peripheral ridge 10a on the long side. That is, it is preferable that the inner ridge portion 20 be formed from the peripheral ridge portion 10a on one long side to the peripheral ridge portion 10a on the other long side. However, a predetermined gap may be provided between the end of the inner ridge 20 and the peripheral ridge 10 a on the long side. More specifically, the inner ridge portion 20 is inclined at a predetermined angle with respect to the container short side direction in a plan view, and is bent at the central portion thereof, and the inclined direction is reversed at the central portion. It is formed in a U-shape. The plurality of inner ridges 20 may all be bent in the same direction, but in plan view one opened at one end side in the container long side direction and one opened at the other end side in the container long side direction May be combined appropriately. Between the end portions of the adjacent inner ridges 20, the above-described cutouts 11a on the long side are located.

  The height of the top of each of the inner ridges 20 gradually decreases from the center to the periphery of the food support surface 5. That is, the height of the top of the inner ridge 20 is not constant over the entire length, and gradually decreases from the center to the periphery of the food mounting surface 5 along the longitudinal direction of the inner ridge 20. ing. Of the total length of the inner ridge portion 20, the height of the top is the highest at a portion near the center of the food mounting surface 5, and the height of the top is gradually lower the further from the center of the food mounting surface 5. The height of the top is the lowest at a portion near the peripheral portion of the food mounting surface 5. The height difference between the height of the top of the inner ridge 20 at the center of the food placement surface 5 and the height of the top of the inner ridge 20 at the peripheral edge of the food placement surface 5 is the food which is the base surface It is larger than the height difference between the central portion and the peripheral portion of the mounting surface 5. That is, the top of the inner ridge portion 20 is inclined downward from the central portion to the peripheral portion of the food mounting surface 5 at an inclination angle larger than the inclination angle of the food mounting surface 5. The height of the top of the inner ridge 20 at the periphery of the food support surface 5 may be lower than or the same as the height of the top of the peripheral ridges 10a and 10b. The heights of the tops of the inner ridges 20 at the center of the food mounting surface 5 may be the same as the heights of the tops of the peripheral ridges 10a and 10b, or the tops of the peripheral ridges 10a and 10b It may be higher than the height of the

  In the present embodiment, since the inner ridge portion 20 generally extends in the container short side direction, the height of the top is the highest at the central portion in the container short side direction of the entire length of the inner ridge portion 20, From there, the height of the top gradually decreases toward both ends in the container short side direction, and the height of the top is the lowest at both ends in the container short side direction. In other words, the height of the top of the inner ridge 20 is higher as it is away from the peripheral ridge 10a on the long side, and is lower as it gets closer to the peripheral ridge 10a on the long side. In each of the plurality of inner ridges 20, the height of the top is gradually lowered from the center to both ends in the container short side direction. In the present embodiment, the plurality of inner protrusions 20 are arranged at intervals in the container long side direction, and the food mounting surface 5 is formed high at the central portion and low at the peripheral portion. Therefore, comparing the heights of the tops of the plurality of inner ridges 20 at the center of the food mounting surface 5, the top of the inner ridge 20 located at the center in the container long side direction is relatively the highest. The tops of the inner ridges 20 located at both ends in the container long side direction are relatively lowest.

  The amount of protrusion of the inner ridge portion 20 with respect to the food placement surface 5 is not constant over the entire length of the inner ridge portion 20, and the central portion of the food placement surface 5 along the longitudinal direction of the inner ridge portion 20. Gradually decreases from the rim to the rim. That is, of the total length of the inner ridge portion 20, the protrusion amount is the largest at a portion close to the central portion of the food placement surface 5, and the protrusion amount gradually decreases with distance from the central portion of the food placement surface 5 The protrusion amount is the smallest at a portion near the peripheral portion of the food mounting surface 5. In the present embodiment, since the inner ridge portion 20 extends in the container short side direction as a whole, of the entire length of the inner ridge portion 20, the amount of protrusion is the largest at the central portion in the container short side direction. The amount of protrusion gradually decreases toward both ends in the container short side direction, and the amount of protrusion is the smallest at both ends in the container short side direction. In each of the plurality of inner protrusions 20, the amount of protrusion gradually decreases from the center to both ends in the container short side direction.

  The amount of protrusion of the inner ridge portion 20 with respect to the food mounting surface 5 is, for example, about 1 to several millimeters, and is preferably larger than the height difference between the central portion and the peripheral portion of the food mounting surface 5. The width of the inner ridge portion 20 is also arbitrary, but is, for example, about 1 to several millimeters at its top. The cross-sectional shape of the inner ridge portion 20 is preferably a shape that narrows gradually toward the upper side, and is preferably trapezoidal in cross section. It is preferable that the amount of protrusion of the inner protrusion 20 at the central portion of the food mounting surface 5 be substantially the same as the amount of protrusion of the peripheral protrusions 10a and 10b.

  The inner ridge portion 20 may be continuous over its entire length, or may be divided at various places. That is, the notch 21 may be formed at a predetermined portion of the entire length of the inner ridge 20 so as to divide or divide the inner ridge 20. The notch 21 is formed at the top of the inner protrusion 20 and is open at the upper side, and is formed over the entire width from the inner edge to the outer edge of the peripheral protrusions 10a and 10b. Preferably, the bottom of the notch 21 reaches the food support surface 5. The notch part 21 may be formed only in one place among the full length of the inner protrusion part 20, and may be formed in two or more places. In the present embodiment, an inner ridge portion 20 in which a notch 21 is formed at one place in a central portion, and an inner ridge portion 20 in which two notches 21 are formed at intervals are present.

<Surface unevenness>
A plurality of asperities are formed on the tops of the peripheral ridges 10a and 10b and the top of the inner ridges 20, respectively. As shown in FIGS. 6 (a) and 6 (b), the asperities are composed of a convex portion 30 relatively projecting upward and a concave portion 31 relatively concave downward. The amount of upward protrusion of the convex portion 30 and the amount of downward dent of the concave portion 31 are smaller than the amount of protrusion of the peripheral ridges 10 a and 10 b or the inner ridge 20. The height difference between the convex portion 30 and the concave portion 31 is, for example, 1 mm or less, preferably half or less of the protrusion amount of the peripheral ridges 10a and 10b, for example, 0.3 to 1 mm.

  The projections and recesses are preferably formed continuously in the longitudinal direction of the peripheral ridges 10a and 10b and the inner ridge 20, and the projections 30 and the recesses 31 are formed by the peripheral ridges 10a and 10b or the inner ridge 20. Preferably, they are alternately and repeatedly formed along the longitudinal direction of. The unevenness is preferably formed over the entire length of the peripheral ridges 10 a and 10 b and the inner ridge 20. The recess 31 crosses the tops of the peripheral ridges 10 a and 10 b and the inner ridge 20 in the width direction.

<Side 2 and flange 3>
A projecting portion 8 locally projecting inward may be provided at a predetermined location on the entire circumference of the inner surface of the side surface portion 2. Further, various reinforcing ribs may be formed on the bottom surface portion 1 and the side surface portions 2 and the like. The flange portion 3 is formed over the entire circumference. At the outer edge of the flange portion 3, a rim 4 extending outward, for example, horizontally or slightly downward may be formed over the entire circumference. The rim 4 is a portion to be the outermost periphery of the container. The flange 3 can be effectively reinforced by providing the rim 4 at the outer edge of the flange 3 over the entire circumference. The width of the border 4 may be as thin as, for example, about 0.1 mm to 2 mm. The upper surface and the lower surface of the rim 4 may be subjected to fine concavo-convex processing or embossing when the container is thermoformed to form a concavo-convex shape, and a further reinforcing effect can be obtained and also finger cuts are prevented it can. The unevenness on the upper surface and the lower surface of the rim 4 may be a shape extending in the inner and outer directions of the container, may be inclined with respect to the inner and outer directions, and may be various types of knurls.

  A lid (not shown) is attached to such a container. The lid is fitted to the container. The configuration of the fitting may be various, and the configuration of the inner fitting may be such that the lid is fitted to the inside of the container, or the configuration of the outer fitting is such that the lid is fitted to the outside of the container. Alternatively, the lid may be configured to fit both inside and outside of the container. As in the case of the container, the cover may be formed with various reinforcing ribs, and the flange portion may be formed with a rim portion to form unevenness on the upper surface and the lower surface of the rim portion. The flange portion of the lid may be provided with a vent for partially releasing steam or the like generated from food inside the container at the time of microwave heating. The container may likewise be provided with vents. When stacking the lidded containers, the legs 7 of the containers should be formed so that they can be engaged with the outer peripheral portion of the top surface of the lid in order to prevent the positional deviation of the lidd containers in the horizontal direction. Is preferred.

<Material>
The container and the lid are made of a synthetic resin sheet and are sheet molded articles formed by sheet molding. Sheet forming includes, for example, vacuum forming, pressure forming, vacuum pressure forming, double-sided vacuum forming, hot plate forming and the like, and in any case, it is formed by thermoforming a synthetic resin sheet. Therefore, in the container and the lid, the outer surface and the inner surface have, in principle, an opposite shape.

  Here, as the synthetic resin sheet, for example, polyethylene terephthalate, polystyrene, polyolefin such as polypropylene or polyethylene, etc., and among these, synthetic resin sheets having range heat resistance are preferable, and these sheet materials are filled with an inorganic substance. It is preferable to use the above-described sheet, a foam sheet obtained by foaming these sheet materials, and a stretched sheet obtained by stretching these sheets. In particular, the container is filled with an inorganic material in a heat-resistant styrenic resin sheet using a heat-resistant styrenic resin having excellent heat resistance as polystyrene, or a foamed sheet obtained by foaming the same, or polypropylene having excellent heat resistance. What was thermoformed using the heat-resistant sheet which stretched | stretched sheets, such as a sheet | seat made to expand or expanded, a polyethylene terephthalate, a polystyrene, a polypropylene, polyethylene, and improved heat resistance is preferable. In addition, the container which used the heat-resistant foam material for the container main body is suitable, since it is not hot even if it is held by bare hands at the time of microwave heating and is excellent in heat retention. Moreover, it is preferable to use the sheet | seat excellent in transparency among the sheets of the above-mentioned heat resistant raw material for a cover body, and the accommodated food can be visually recognized favorably.

  The food is accommodated in the container configured as described above, and the food is placed on the food mounting surface 5. Since the peripheral ridges 10a and 10b and the inner ridge 20 are formed on the food mounting surface 5, the food is supported by the tops of the peripheral ridges 10a and 10b and the top of the inner ridge 20. In particular, since the height of the top of the inner ridge portion 20 is gradually lowered from the central portion to the peripheral portion of the food mounting surface 5, the food is mainly placed on the food among the entire length of the inner ridge portion 20. It will be in contact with a high height part which is a part near the central part of the surface 5. And since a plurality of unevenness are formed on the top of the peripheral ridges 10a and 10b and the top of the inner ridge 20 respectively, the food is the convex 30 and the inside of the top of the peripheral ridges 10a and 10b. It comes in contact with the convex portion 30 at the top of the projection 20. Therefore, the contact area with food is very small.

  For example, when an oil-rich food such as deep-fried food is contained in a container, the oil contained in the food may ooze outside the food. In particular, when the food is contained in a container with a lid and heated in a microwave oven and warmed, it is remarkable, and the oil oozes out of the food and accumulates at the bottom of the food, causing a sticky feeling on the food . In this container, the oil exuded from the food flows from the convex portion 30 at the top of the peripheral ridges 10a and 10b to the recess 31 and flows from the convex 30 to the recess 31 at the top of the inner ridge 20. , Hard to collect in the bottom of food. Further, the oil adhering to the top of the inner ridge portion 20 flows from the high portion to the low portion of the inner ridge portion 20. That is, the oil adhering to the top of the inner ridge portion 20 flows from the central portion side of the food mounting surface 5 to the peripheral portion side of the top portion of the inner ridge portion 20. Then, the oil flows from the top of the peripheral ridges 10 a and 10 b and the top of the inner ridge 20 to the food mounting surface 5 and the circumferential groove 6. Since the food mounting surface 5 is inclined so that the central portion thereof is relatively high and the peripheral portion is relatively low, the oil which has fallen to the food mounting surface 5 is transferred to the peripheral portion of the food mounting surface 5 And head. The peripheral ridges 10a and 10b are formed on the peripheral edge of the food mounting surface 5, but since the cutouts 10a and 10b are formed on predetermined portions of the peripheral ridges 10a and 10b, the food mounting surface 5 is mounted The oil having flowed on the mounting surface 5 flows down to the circumferential groove 6 through the notches 10a and 10b. Therefore, even if food such as deep-fried food is put in a container with a lid and heated in a microwave oven, oil removal becomes good, the food is not sticky, and it is possible to eat it crisply and deliciously.

  Further, since the peripheral ridges 10a and 10b and the plurality of inner ridges 20 are formed on the food mounting surface 5 and the tops thereof are roughened, it is difficult to slip even in a high oil content food . Therefore, at the time of transportation or display operation, the stored food is unlikely to be misaligned, and the beautiful stored state is maintained, and the deterioration of the appearance due to the misregistration can be prevented.

DESCRIPTION OF SYMBOLS 1 Bottom part 2 Side part 3 Flange part 4 Edge part 5 Food mounting surface 6 Circumferential groove 7 Leg part 8 Projection part 10a Peripheral ridge ridge part 10b of a long side side Peripheral ridge ridge 11a of a short side side Notch of a long side Portion 11b Short side notch 20 Inner ridge 21 Notch 30 Convex part 31 Concave part

The present invention has been made to solve the above problems, and the food packaging container according to the present invention comprises a bottom portion, a side portion extending upward from the peripheral portion of the bottom portion, and a top end portion of the side portion. A container for food packaging comprising a laterally extending flange portion, wherein the top surface of the bottom portion has a circumferential groove around a peripheral portion of the top surface of the bottom portion, and an overhead food surrounded by the circumferential groove A mounting surface is formed, and a peripheral ridge is projected upward at the peripheral edge of the food mounting surface so as to go around the peripheral edge, and the food is surrounded by the peripheral ridge. In the inner area of the surface, a plurality of inner ridges extending in a predetermined direction are provided so as to protrude upward, and on the top of the peripheral ridges and the top of the inner ridges, a plurality of asperities are formed . and inner ridges longitudinally are repeatedly formed alternately, the recess of the irregularities, the top and inner ridges of the peripheral ridges Parts and across the width direction, projecting amount of the inner ridge portion is gradually decreased toward the periphery from the center of the food placing surface, the height of the inner ridge food placing central surface It is characterized by being gradually lowered from the part to the peripheral part.

Claims (4)

A food packaging container comprising a bottom portion, a side portion extending upward from a peripheral portion of the bottom portion, and a flange portion extending laterally from an upper end portion of the side portion,
On the upper surface of the bottom portion, there are formed a circumferential groove around the peripheral portion of the upper surface of the bottom portion, and an elevated food placing surface surrounded by the circumferential groove.
At the periphery of the food mounting surface, a peripheral ridge is protruded upward so as to go around the peripheral part, and in the inner region of the food mounting surface surrounded by the peripheral ridge, a predetermined direction is provided. A plurality of inner ridges projecting upward, and a plurality of projections and depressions are formed on the top of the peripheral ridge and the top of the inner ridge, respectively.
The amount of protrusion of the inner ridges gradually decreases from the center to the periphery of the food placement surface, and the height of the inner ridges gradually decreases from the center to the periphery of the food placement surface A food packaging container characterized by   2. The food packaging container according to claim 1, wherein a notch is formed at a predetermined position of the entire circumference of the peripheral ridge so as to divide the peripheral ridge.   The food packaging container according to claim 1 or 2, wherein the food mounting surface is inclined so that the height is reduced from the central portion to the peripheral portion.   A container with a lid comprising the food packaging container according to any one of claims 1 to 3 and a lid fitted to the container.

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