JP2008285190A - Self-standing bag body, and ready-to-eat food - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-standing bag body for a ready-to-eat food which is capable of preventing flow-out of dried rice, ready-to-eat noodle or the like, and easily draining hot water from the food, and superior in the taste after the reconstitution of the ready-to-eat food with hot water. <P>SOLUTION: The self-standing bag body has a water-draining section composed of a heat-sealable liquid-permeable non-woven textile inside the bag body. The non-woven textile is inserted through opposing wall sheets while a folding part being two-folded toward the bottom seal part side. Each of two upper ends of the non-woven textile is fixed to the inner wall of the wall sheets by the heat seal, and side parts of the non-woven textile are fixed by the heat seal together with side seal parts of the wall sheets. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a self-supporting bag for instant food that is cooked by hot water draining or hot water refining, and more specifically, can be reheated in a short time and prevents the outflow of dried rice or instant noodles during hot water draining. The present invention relates to a self-supporting bag body for instant food that is excellent in taste after cooking, and an instant food in which the self-supporting bag body is filled with dry food or the like.

  2. Description of the Related Art Conventionally, there are instant food products in which dry food is filled in a container such as a sheet molded container, a foam molded container, an injection molded container, a paper container, and a self-supporting bag. These instant foods are prepared by pouring hot water into the container to reconstitute dry foods and then eating them. So-called cup noodles, cup yakisoba, instant cooked rice, etc. are commercially available. They can be cooked simply by pouring hot water without using a heat source or pots, can be eaten without dishes, and there is no need to wash pots and dishes. These instruments are used even in situations where it is difficult to clean them, and are used by many people in many ways, such as as simple meals, emergency meals, or when traveling abroad.

  Such instant foods are roughly classified into a hot water recuperation type and a hot water draining type. The hot water replenishment type is a type of food that pours hot water into dry foods that have been pre-coated with seasonings and ingredients, and then eats the hot water without draining, so-called cup ramen, cup udon, miscellaneous cooking And cup soup. On the other hand, the hot water draining type is a type of food that is poured into dried foods and then reconstituted, then the water is discarded, reconstituted and seasoned with sauces, and so on. , Cup zaru soba.

  The hot water cutting type needs to efficiently separate the ingredients and hot water when the hot water is discarded. In order to prevent the noodle strings and ingredients when the hot water is discarded from the end of the container from flowing out together with the hot water, a lid material provided with a drain hole in the container lid has been devised (Patent Document 1). For example, the outer lid of the container described in Patent Document 1 is a lid material with a hot water hole for cupped fried noodles, and is made of a laminated film in which another film is laminated on a film having a hot water hole. When cooking, the layer of the cover material made of a laminated film is peeled to expose the hot water hole, and after pouring, the hot water is discharged from the hot water hole.

  However, if the size of the drainage hole is equal to or larger than the diameter of the noodle strings after reconstitution, the noodle strings may pop out when the hot water is discarded, while the size of the drainage holes is less than the diameter of the noodle strings. In addition, since the noodle strings and other ingredients are clogged in the drainage hole, it takes a long time to drain the hot water, which not only impairs convenience but also makes it difficult to reconstitute uniform hot water, which may impair the flavor of food. In particular, when the dried noodles are reconstituted with hot water, the hot water remaining in the gap between the noodle strings is left in the longitudinal direction between the noodle strings due to the capillary phenomenon, making it difficult to discharge hot water and excessively absorbing the noodle strings. In addition, since the remaining amount of hot water is not constant, the seasoning becomes unstable, which contributes to a decrease in texture.

  As a method for solving the problem of hot water drainage, a food product obtained by filling a water-permeable bag with noodles has also been proposed (for example, see Patent Document 2). A water-permeable packaging bag made of polypropylene non-woven fabric is filled with spaghetti, and the opening is heat-sealed and sealed. It is taken out, immediately exposed to cold water, the package is opened, spaghetti is taken out and eaten.

On the other hand, there is also a noodle package having a draining function using a soft packaging bag that is not bulky and can be easily discarded after use (Patent Document 3). The noodle package described in Patent Document 3 is a noodle package having a draining function that can be cooled with tap water after heating the instant noodles in the bag together with hot water or a microwave oven. The bottom portion of the two main body films has a bottom portion formed in a standing pouch shape by a water-permeable bottom tape, and further seals both end edges of the main body film below and above the bottom tape. And a top seal part. Instant noodles can be put on the bottom tape and the opening can be hermetically sealed to form a noodle package. The obtained noodle package is immersed in hot water to warm the noodles and loosen the noodles by heating. Later, the top seal part and the bottom seal part are cut and opened, the tap water is circulated from the top of the opened packaging bag to the bottom tape side to cool the noodles, and then the water can be cut off from the bottom tape for cooking. That's it.
JP 2002-96879 A Japanese Patent Laid-Open No. 4-63566 JP 2003-231561 A

  There is a great demand for instant foods that can be cooked simply by hot water draining or reconstitution, and the spread of not only noodles but also cooked rice is also desired. However, in the container lid material of Patent Document 1, the noodle strings are likely to be clogged in the drain hole provided in the lid material, or the noodle string may flow out of the drain hole and it may be difficult to efficiently drain the hot water. In addition, when instantly dried rice using α-rice instead of noodles is reconstituted and drained, the lid described in Patent Document 1 flows out to the cooked rice at the time of draining, and actual cooking is difficult. is there.

  Moreover, the foodstuff characterized by filling noodles with the water-permeable bag body of patent document 2 aims at exposing the noodles together with the bag to boiled water and cold water. It is suitable for cooking that contains, but not suitable for instant foods that do not include a boiled process. In addition, there is no description regarding ingredients, seasonings, and eating methods as instant foods. Therefore, even if the water-permeable bag described in the above publication is used, it cannot be eaten only with hot water reconstitution or hot water drainage, and is not suitable for instant food.

  Further, the noodle package described in Patent Document 3 is a noodle package originally filled with boiled noodles, heated while the noodles are put in a bag, and then passed through cold water into the bag containing the noodles. , And draining the noodles, because there is no concept of putting hot water in the bag in the first place, hot water can not be easily discharged from the bag after the contents have been reconstituted, It is difficult to use it safely for hot water foods.

  On the other hand, when a certain amount of hot water is poured when reconstituted dry food in a container, especially noodles and dried cooked rice, the contents will float above the hot water, or the water level in the container will decrease over time The hot water cannot be reconstituted, and the core may remain especially for cooked rice. Moreover, the cooked rice below the container absorbs excess water, making it difficult to reconstitute uniform hot water. In addition, Harusame and rice noodles have narrower noodle strings compared to buckwheat, udon, ramen, etc., and a lot of harsame and rice noodles flow out due to hot water drainage, so use as instant food is restricted, such as instant soup and potage It was only used as an ingredient, and for example, it was not possible to make an instant product such as grilled rice noodles or spaghetti napolitan cooked by hot water.

  An object of the present invention is to provide a self-supporting bag body that is suitable for instant foods that can be cooked only with hot water reconstitution or hot water drainage, and that is simple for filling and storage.

  In addition, the present invention is an instant food that can be easily reconstituted or drained even with ingredients that could not be made into a conventional hot water draining type, especially because the contents are small particles, such as dried cooked rice, harsame, rice noodles, etc. The purpose is to provide.

  The present invention consists of soft packaging, and when a drainage portion made of a liquid-permeable nonwoven fabric is disposed between the top seal portion and the bottom seal bottom formed to be openable, the drainage portion and the bottom portion are disposed between the drainage portion and the bottom portion. It can be filled with dried food such as dried rice, and hot water can be poured from the drainage section to easily reheat the dried food underneath, and the drainage section is made of non-woven fabric. Spillage and clogging can be suppressed, and wet non-woven fabric can cover dried food from the top. The present invention has been completed by finding that it can be widely applied to rice noodles and the like.

  According to the self-supporting bag of the present invention, since a liquid-permeable nonwoven fabric is used, it is applied to hot water refilling and hot water cutting type instant foods using thin ingredients and small ingredients that have been difficult to commercialize conventionally. can do. In particular, since a liquid-permeable non-woven fabric is used, it is possible to quickly and sufficiently drain hot water, and so-called noodles and rice that are mixed with short yakisoba noodles and rice to make a sauce taste can be used as instant foods. .

  Since the self-supporting bag body of the present invention has a draining portion fixed in the bag, even if the food floats when hot water is poured into the bag body, the nonwoven fabric constituting the draining portion suppresses the floating of the food, or Due to the steaming effect covering the surface of the food, uniform hot water can be reconstituted in a short time.

  The instant food using the self-supporting bag of the invention can efficiently drain hot water remaining between the noodle strings by the capillary phenomenon, so that the seasoning is not diluted and when eating Excellent texture because there is no excess water. In particular, since starches eluted from the contents are also discharged, the slimy feeling of food is reduced and the texture is remarkably improved.

  The instant food using the self-supporting bag body of the invention can perform pouring and draining via the drainage part, so that hot water can be drained safely.

  Since the instant food of the present invention can incorporate an eating tool, it is not only used as a simple food that is easy to cook, but also has a small filling space and can be suitably used as an emergency food.

(1) Self-supporting bag body The first aspect of the present invention is a heat-sealed peripheral edge portion of two opposing wall sheets, and is made of a liquid-permeable nonwoven fabric between the top seal portion and the bottom seal portion. A self-supporting bag having a drainage portion, wherein the liquid-permeable nonwoven fabric constituting the drainage portion is heat-sealable, and the drainage portion is folded in two with the nonwoven fabric being bent toward the bottom seal portion. Inserted between the opposing wall sheets, each of the two upper ends of the non-woven fabric is fixed to the inner wall of the wall sheet by heat sealing, and the side of the non-woven fabric is the side of the wall sheet The bottom seal portion is fixed together by a heat seal together with a seal portion. The bottom seal portion is inserted into a lower end of the wall sheet by inserting a folded bottom member in which a bent portion is folded toward the draining portion side, and the folded bottom member Peripheral edge of the lower end and side It is a self-supporting bag body, which is a folded bottom portion that can be expanded together with a seal portion by heat sealing. The present invention will be described below with reference to the drawings. In addition, the self-supporting bag body of the present invention is suitable for filling foods to be cooked by hot water reconstitution or hot water cutting, and the bag body has an opening for filling contents, but in FIGS. In the following description, the contents are sealed without being filled. 1 is a schematic front view of a self-supporting bag (100) according to the present invention, and FIG. 2 is a schematic cross-sectional view taken along line XX shown in FIG.

  The self-supporting bag body (100) according to the present invention is formed by heat-sealing the peripheral edge portions of two opposing wall sheets, the top seal portion (20), the bottom seal portion (30), and the side seal portion. The draining part (40) which consists of a liquid-permeable nonwoven fabric is arrange | positioned inside the bag body.

  The liquid permeable nonwoven fabric constituting the drainage part (40) has heat sealability, and is fixed to the inner wall of the wall sheet by heat sealing.

  The draining portion (40) is formed by folding the nonwoven fabric in half and inserting the folded mountain between the wall sheets with the bottom facing the bottom, and the two upper ends (43) of the nonwoven fabric are respectively formed on the inner wall of the wall sheet. It is fixed by heat sealing, and the side part (45) of the nonwoven fabric is fixed together with the side sealing part of the wall sheet by heat sealing. Since the side part (45) of the nonwoven fabric is heat-sealed together with the side seal part of the wall seal, the folded mountain position of the folded nonwoven fabric is fixed inside the bag. Moreover, since the side part and upper end part of a nonwoven fabric are all fixed to the sheet | seat for walls by heat sealing, a bag body is made up and down by the top seal part (20) and a bottom seal part (30) by this draining part (40). It will be partitioned.

  Further, the bottom seal portion (30) has a peripheral edge portion of the folding bottom member (8) inserted into the bag lower end by folding the bent portion toward the draining portion side, and the lower end of the wall sheet. And the side seal portion (50) are heat-sealed so as to be expandable to form a folded bottom portion, and the self-supporting property is secured by the folded bottom portion.

  Between the bottom seal part (30) and the draining part (40) (lower storage chamber), food such as dried noodles and dried rice grains can be filled. The draining part (40) and the top sealing part (20) In the space (upper storage room), it is possible to store foodstuffs such as seasoning-filled bags, spoons and forks. In addition, the side seal portion (50) of the self-supporting bag body (100) of the present invention includes a second cut portion (6) between the draining portion (40) and the bottom seal portion (30), and the You may have a 1st insertion part (7) between the draining part (40) and the top seal part (20). By opening from the first insert part (7), the seasoned bag and the eating utensil in the upper storage room can be taken out. If the second cut part (6) is used, hot water reconstitution, hot water After cutting, the food and seasoning in the lower storage room can be easily mixed.

  In the self-supporting bag of the present invention, the opening for filling the contents may be formed in any way, but the inside of the bag is vertically divided by the draining part, and each can serve as a storage part. Before filling the object, it is desirable to form filling openings above and below the draining portion.

  Further, as will be described later, a handle portion may be formed on the side seal portion or other chuck portions may be formed so that the hot water can be discharged safely.

(2) Instant food The second of the present invention is an instant food characterized in that food is incorporated between the bottom seal portion (30) and the draining portion (40) of the self-supporting bag of the present invention. is there. An instant food (200) in which food, a seasoning, an eating tool and the like are built in the self-supporting bag (100) of the present invention will be described with reference to FIGS. 3 is a schematic plan view of the instant food of the present invention, and FIG. 4 is a schematic cross-sectional view taken along line YY of FIG.

  As shown in FIG. 3, the instant food (200) of the present invention is provided with hot water replenishment in the lower storage chamber between the upper end seal portion (43) and the bottom seal portion (30) of the draining portion (40). It is possible to incorporate a food 12) for hot water cutting. Such foods can be broadly classified into dry foods and non-dry foods. Dry foods include rice grains such as alpha rice, noodles such as udon, buckwheat, ramen, pasta such as rice noodles, harsame, spaghetti, macaroni, etc. In addition, non-dried foods include boiled udon, boiled soba noodles, boiled noodles such as boiled ramen, boiled noodles, boiled rice bran, boiled spaghetti, boiled spaghetti, boiled macaroni and other pasta. These foods may further contain ingredients.

  Moreover, you may store the bag body (13) containing a seasoning, an eating tool (14), etc. in the upper storage chamber formed between the draining part (40) and the top seal part (20). If the food is easily oxidized and deteriorated by oxygen, an oxygen scavenger may be further enclosed. By enclosing the seasoning liquid and the eating tool, cooking and eating can be made simpler. In addition, a seasoning, an eating tool, etc. may not exist.

  The instant food (200) of the present invention can be cooked by reconstitution and draining. First, the bag body is opened from the first notch (7), the top seal part (20) side (I) is removed, and the seasoned bag body ( 13) and eating tool (14) are removed. Next, hot water is poured from above the liquid-permeable nonwoven fabric constituting the draining portion (40). Since the liquid permeable nonwoven fabric absorbs hot water and is moistened, the nonwoven fabric exhibits the effect of steaming the contents. In addition, since the folded mountain part of the liquid permeable nonwoven fabric is fixed to the bag body, pouring hot water from the folded mountain to the upper part can prevent the food from rising in the hot water and perform uniform hot water reconstitution Can do. After a predetermined hot water return time has passed, the hot water is drained with the draining portion (40) facing downward. The contents may be left to steam for a predetermined time after draining.

  Next, the bag body is torn from the second notch (6) to remove the water cut portion (40) side (II). The contents of the remaining bag (III) can be seasoned with the seasoning-containing bag (13) taken out before pouring, and eaten using the eating tool (14).

  As described above, the instant food of the present invention can separate the bag into (I), (II), and (III) during cooking. You can cook hot water and cook with excellent taste.

(3) Manufacturing method of self-supporting bag body The manufacturing method of the self-supporting bag body of the present invention is not limited, but the self-supporting bag body (100) according to the present invention shown in Fig. 5 is manufactured by a stand pack bag making machine. FIG. 6 is a schematic sectional view taken along line XX in FIG.

  First, a folded bottom member (8) in which a folded mountain is folded in two toward the draining portion side is inserted into the opposite wall sheet material on the bottom seal portion (30) side, and a predetermined amount on the top seal portion (20) side is inserted. A liquid-permeable nonwoven fabric folded in two with the folded mountain facing the bottom seal portion (30) is inserted into the position. The liquid permeable nonwoven fabric becomes a draining portion (40). The bottom seal part is heat-sealed in the same way as a normal stand pack, and the upper end of the liquid-permeable nonwoven fabric is used with a line seal bar in a state where the plate is inserted so that the liquid-permeable nonwoven fabrics are not heat-sealed to each other. Heat-seal the side part of the conductive nonwoven fabric and the side seal part of the bag body (100). At this time, if an unsealed portion (53) is formed in the side seal portion between the draining portion (40) and the bottom seal portion (30), it can be used as an inlet for food or the like.

  The self-supporting bag body (100) thus produced has an unsealed part (53) in a part of the side seal part as shown in FIG. 5, and the top part is sealed as shown in FIG. It is opened in the previous state and becomes an opening for filling, and the upper storage chamber and the lower storage chamber can be easily filled with the contents. In addition, the self-supporting bag body of the present invention may be provided with a first notch (7) or a second notch (6) at the side seal portion. Thereby, opening by hand becomes easy.

  The wall sheet constitutes the trunk portion of the self-supporting bag body, and a laminated film having heat resistance, gas barrier properties, self-supporting suitability, heat sealability, and the like can be widely used. Such a laminated film needs to have at least an outer layer and an inner layer, and the inner layer is a heat-sealable layer. Since the liquid permeable nonwoven fabric constituting the drainage portion (40) is heat-sealable, if the inner layer is heat-sealable, the drainage portion can be fixed to the wall sheet by heat sealing, and the folded bottom member or the like by heat sealing. This is because it can be fixed.

  The resin having such heat sealability may be any resin that can be melted by heat and fused to each other. For example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear (linear) low Resins such as density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer A resin composed of one or more of the above or a laminated film obtained by forming a film of these resins can be used. The thickness of the layer having heat sealability is suitably 30 to 200 μm.

  Further, as the outer layer, it is preferable to use a synthetic resin having excellent properties in mechanical, physical, chemical and the like since it becomes a basic material constituting the body of the bag body. Polypropylene, polycarbonate, and polyacetal resins can be used. In addition, as a film using these resins, any of an unstretched film or a stretched film stretched in a uniaxial direction or a biaxial direction can be used. Any thickness may be used as long as it can be held to the minimum necessary for strength, rigidity, and the like. If it is too thick, there is a disadvantage that the tearability is lowered and the cost is increased. If it is too thin, strength, rigidity, etc. are lowered, which is not preferable. In the present invention, about 12 to 50 μm is appropriate for the above reasons. If it is this range, even if the upper part of the drainage part (40) is opened and poured, the opening part can be naturally closed by releasing the hand, and this makes it easy to steam the reconstituted food. it can.

  The outer layer may be a laminated film coated with polyvinylidene chloride and other barrier materials. The other layer laminated as such an outer layer may be a vapor deposition layer of an inorganic material such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, zirconium oxide or the like. Such an inorganic deposition layer can impart barrier properties to the outer layer. Moreover, when giving a printing layer to the inner layer side of an outer layer, it is preferable at the point which is excellent in printability to use the stretched film biaxially stretched.

  The wall sheet constituting the self-supporting bag of the present invention may further include an intermediate layer between the inner layer and the outer layer. By providing an intermediate layer, gas barrier properties, mechanical toughness, bending resistance, puncture resistance, impact resistance, abrasion resistance, cold resistance, heat resistance, chemical resistance, etc. are further imparted. be able to. As a base material used as such an intermediate layer, for example, metal foil such as aluminum, iron, copper, tin, or polyolefin such as polyethylene terephthalate, polyamide, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyvinyl alcohol, Films of saponified ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, etc. or films coated with polyvinylidene chloride on these, or inorganic materials such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, zirconium oxide Or a film made of polyvinylidene chloride or the like can be used. As the intermediate layer, one or more of the above substrates can be used in combination. Note that the thickness of the base material only needs to satisfy the function required for the packaging bag, and may be appropriately selected as necessary.

  When the self-supporting bag of the present invention is cooked as an instant food, it is necessary to open the bag across the upper and lower portions of the draining portion (40). It can be opened with scissors, but as shown in FIG. 1 and the like, if it can be opened through the first notch (7) and the second notch (6), it can be cooked without using tools. It is convenient in terms of point, and it is preferable that the bag can be opened in the lateral direction by the opening force of the hand. Accordingly, when a longitudinal tearable film or the like is used as the wall sheet together with the outer layer, intermediate layer, and inner layer films, such straight tearability can be imparted. Examples of the longitudinally tearable film include a uniaxially stretched film, a biaxially stretched film with improved molecular orientation of the blended resin, and a heat-sealable longitudinally tearable film. Commercially available products of such longitudinal tearable films include biaxially stretched straight-cut nylon film (product name “Uniathlon TB1010”, manufactured by Idemitsu Unitech Co., Ltd.), and straight-cut alumina-deposited biaxially stretched polyethylene terephthalate film (product) Name "IB-PET-PTUB", manufactured by Dai Nippon Printing Co., Ltd.).

  In addition, as a technique for improving the tearability of the laminated film, it is possible to impart tearability by laminating the film with laser light irradiation or the like while making a tear or performing perforation processing on a layer other than the inner layer. it can. Moreover, you may use together the tearability improvement methods, such as a perforation, and the said longitudinally tearable film in the range which does not impair the function of barrier property etc. which are calculated | required by a self-supporting bag.

  The resin constituting the outer layer, intermediate layer, inner layer and the like used in the wall sheet used in the present invention includes, for example, a lubricant, a crosslinking agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler, Antistatic agents, antiblocking agents, colorants such as dyes and pigments, and the like can be used, and further, modifying resins and the like can be used.

  As a method of laminating an outer layer, an intermediate layer, an inner layer, etc. to prepare a wall sheet, each layer may be extruded and co-extruded and laminated by using a T-die extrusion lamination method using a thermoadhesive resin between the layers. Alternatively, it may be laminated by a dry laminating method using a two-component curable urethane adhesive. In the case of the T-die extrusion lamination method, an anchor coating agent can be used as necessary.

  The laminated film constituting the folding bottom member (8) may be the same as or different from the wall sheet. However, since the bottom seal portion is formed by heat sealing, the inner layer needs to have heat sealing properties with the inner layer of the wall sheet. On the other hand, the self-supporting bag of the present invention is formed so that the bottom portion can be opened and is self-supporting, and considering the rigidity of the wall sheet to be used, the self-supporting bag body is wide enough to ensure self-supporting. A laminated film that can secure the properties is selected. For example, when filling the lower storage chamber with food or the like, if the same sheet as the above-mentioned wall sheet is used as the folding bottom member (8), it may be difficult to spread the case. What is thinner than the sheet for use may be used. Since the folding bottom member (8) does not need to tear, a laminated film obtained by removing the longitudinal tearable film from the laminated film used for the bag body may be used. Only the spreadability can be improved without impairing the sealing properties and other functions required of the bag body.

  The liquid permeable nonwoven fabric constituting the draining part (40) of the self-supporting bag of the present invention has heat sealability and needs to be able to be fixed at least by the inner layer of the wall sheet and heat seal. Moreover, as a draining part (40), it has liquid permeability suitable for pouring and draining, and is in direct contact with heat resistance, wet strength, and food not to be simulated heat fusion during pouring, reconstitution, and draining. It is preferable to have hygiene as a packaging material.

  In this invention, while having liquid permeability, it is necessary to prevent the outflow of the hot water rejuvenation food at the time of hot water cutting, and it is preferable to use a nonwoven fabric. In general, non-woven fabrics are roughly classified into three types, wet, dry, and direct, depending on the production method, and long-fiber non-woven fabrics that use long fibers, and short-fiber non-woven fabrics that use short-cut fibers if wet and dry types. There is. As a method for preparing a nonwoven fabric from the above-mentioned fibers, there are a papermaking method, a water punch method, a chemical bond method, a thermal bond method, a needle punch method, a stitch bond method, etc. There are a thermal bond or a spun bond method by needle punch, a melt blow method of thermal bond by self-bonding, a flash spinning method by thermal bond, etc., which may be prepared by any method in the present invention.

  In addition, as a method for imparting heat sealability to the nonwoven fabric, a method using heat sealable fibers made of polyolefin such as polyethylene or polypropylene as fibers, an outer surface of the fiber made of polyolefin such as polyethylene or polypropylene, and the fiber center portion There are co-pressed fibers made of polypropylene, polyethylene, polyamide, polyester, or the like. Moreover, the heat sealing property can also be imparted to the non-woven fabric by using a heat sealing property binder to the fiber having no heat sealing property. The liquid permeable nonwoven fabric used in the present invention may be produced by any manufacturing method as long as it has suitability as the draining portion (40). Commercially available products can also be used, for example, thermal bond co-pressed long fiber non-woven fabric (product name “T0203WDO”, manufactured by Unitika Ltd., polyethylene terephthalate core / polyethylene coated fiber), thermal bond co-pressed short fiber non-woven fabric (product) The name “Sanmore 1320” (manufactured by Sanwa Paper Co., Ltd., polypropylene core / polyethylene coated fiber) and the like can be suitably used.

Incidentally, a liquid-permeable, and in order to be able to prevent the outflow of solids, for example, a basis weight of 10 to 50 g / m ^2, preferably in the use of nonwoven 13~30g / m ^2. If it exceeds 50 g / m ² , the water permeability may decrease, and if it is less than 10 g / m ² , the water drainage portion may be damaged during hot water cutting because it is too thin.

  The self-supporting bag of the present invention is characterized in that a draining portion (40) is disposed between the top seal portion (20) and the bottom seal portion (30), but each size is filled. It can be appropriately selected depending on the shape and filling amount of the food. For example, the liquid permeable nonwoven fabric constituting the draining portion (40) not only has a function of pouring and draining hot water, but also prevents the hot water rejuvenated food from being lifted by the folded fold portion. Further, the liquid permeable nonwoven fabric becomes a wet sheet after pouring and coats the reconstituted food so that the food can be steamed. Furthermore, the upper part of the liquid-permeable nonwoven fabric can be filled with seasonings and eating tools as an upper storage chamber. Accordingly, the size of the liquid permeable nonwoven fabric and the drainage portion (40) is preferably selected as appropriate in consideration of such functions.

  In addition, the self-supporting bag body is formed with a top seal portion before sealing, an unsealed portion with a predetermined width provided on the side seal portion, and the like, which become openings of the upper storage chamber and the lower storage chamber, from which the contents Can be filled. Fine granular contents such as dried cooked rice can be filled even if the opening is small, but when filling large contents such as noodle chunks, it is designed to be an opening suitable for the size of the contents, or In the case of a noodle mass, the noodle mass may be divided and filled, and the size of the opening can be appropriately selected in consideration of such a filling method.

  Another embodiment of bag making in this way will be described with reference to FIGS.

  FIG. 7 is a schematic front view of a self-supporting bag body having an unsealed portion before filling the contents, and is an aspect having a chuck portion (23) above the draining portion (40). Such a self-supporting bag body (100) with a chuck can be manufactured using a bag manufacturing machine for a stand pack with a chuck. Although the manufacturing method is almost the same as the bag (100) shown in FIG. 5, the chuck is opened in advance after the chuck is thermally fused in advance at a predetermined position, and the chuck is opened, and the bottom seal portion side of the chuck is opened. A self-supporting bag body (100) with a chuck can be manufactured according to the manufacturing method of FIG. The bag body (100) can also be manufactured by a packaging and filling machine in which a folding section insertion device is added to a stand-pack bag making and filling machine with a chuck, a 4-axis or 3-axis gusset bag making machine, or Even a packaging and filling machine with a fold-set insertion device added to the gusset bag filling machine can be made by adding a chucking function.

  In the case of the bag body (100) with the chuck attached in this way, after pouring hot water into the bag body (100), the upper part of the bag body (100) can be closed at the time of hot water return, and the hot water is cooled. It is preferable in that it can prevent spilling of hot water and can prevent contamination of foreign matters.

  Further, FIG. 8 shows a case in which the width of the side seal portion of the self-supporting bag body (100) is made different between right and left, and a through-hole serving as a handle portion (55) is formed on the wide side. Using this handle portion (55), the hot water can be discharged safely. In addition, you may provide such a handle part (55) in the bottom seal part of an above-mentioned self-supporting bag (100) with a chuck | zipper.

  The self-supporting bag of the present invention and the instant food filled with food in the bag are exemplified in the case of reconstitution and draining with hot water, but the food is reconstituted with water instead of hot water, or cooked after draining. You can also. In addition, although the seasoning and condiment was filled in the upper filling part, when preparing instant foods in containers, the lower storage room was filled with condiments and noodles along with noodles, etc., or dried to alpha rice Ingredients may be mixed in advance and cooked by reconstitution and draining.

  The food contained in the bag is not limited to dried food, and may be boiled noodles, for example. The loose storage agent filled in the lower storage chamber and adhered to the surface of the boiled noodles is watered. Rinse with hot water, then drain and drain.

  EXAMPLES Next, although an Example is given and this invention is demonstrated concretely, these Examples do not restrict | limit this invention at all.

Example 1
(1) Manufacture of self-supporting bag (i) Biaxially stretched polyethylene terephthalate film (product name “T4102”, manufactured by Toyobo Co., Ltd.) with a thickness of 12 μm, Biaxially stretched straight cut nylon film with a thickness of 15 μm (product) Name “Uniathlon TB1010”, manufactured by Idemitsu Unitech Co., Ltd., 7 μm thick aluminum foil (manufactured by Sun Aluminum Industry Co., Ltd.), and 40 μm thick unstretched polyethylene film (product name “L4102”, manufactured by Toyobo Co., Ltd.) ) Were laminated using a two-component curable urethane resin adhesive to produce a laminated film.

  (Ii) The laminated film was cut to obtain a laminated film for a bag body having a width of 410 mm and a laminated film for a bottom material having a width of 120 mm.

Thermally bonded co-extrusion long fiber nonwoven fabric (product name “T0203WDO”, manufactured by Unitika Ltd., polyethylene terephthalate core / polyethylene coated fiber, basis weight 20 g / m ² ) as a liquid permeable nonwoven fabric, Using a laminated film for the bottom material and using a stand pack bag making machine, the length 190 mm × width 150 mm, the bottom material folding width 50 mm, the liquid-permeable nonwoven fabric folding width 50 mm, the side seal width 5 mm, and the bottom bottom seal width A self-supporting bag body having an unsealed portion was manufactured from 5 mm to 80 mm to 135 mm from the upper end of the side seal portion on one side. Further, home base type notches having a depth of 2 mm were provided at positions of 15 mm (first notch) and 75 mm (second notch) from the upper ends of the seal portions on both sides. Note that the distance between the bent portion of the bottom material and the bent portion of the liquid-permeable nonwoven fabric when the bag was folded was 70 mm.

(2) Manufacture of instant food Yakisoba in a commercial container (trade name “Old Sauce Yakisoba”, manufactured by Toyo Suisan Co., Ltd.) 120 mm × 120 mm × 25 mm noodle chunks cut into 20 mm × 120 mm × 25 mm And filling the commercially available product from the bag body with the unsealed portion of the self-supporting bag body manufactured in (1) above, and filling the unsealed portion with an impulse sealer having a width of 5 mm. Sealed. The attached seasoned bag is put through the opening at the top of the self-supporting bag and placed on the liquid-permeable nonwoven fabric, and the upper end of the opening is sealed with an impulse sealer with a width of 5 mm. Food was manufactured.

(3) Preparation of instant food The instant food manufactured in (2) above is torn by hand from the first 15mm cutout from the top to remove the top seal and placed on the liquid-permeable nonwoven fabric. The placed seasoned bag was taken out, hot water was poured from the top of the liquid permeable nonwoven fabric until the liquid permeable nonwoven fabric was immersed, and left for 3 minutes (specified cooking time) to perform hot water reconstitution. In addition, since the straight-cutting biaxially stretched nylon film was used, it was able to tear straight.

  Next, the upper part of one side seal of the self-supporting bag body was picked and held with a finger, the bottom seal portion was supported by the remaining hands, and the bag body was faced downward, and hot water was cut from the liquid-permeable nonwoven fabric. The hot water was not striped, and the hot water was cut off after waiting about 10 seconds until the dropping interval became approximately 1 second. However, the noodle strings and kayak did not flow out at all.

  After the hot water was cut off, the bag body was made independent, the contents were dropped onto the bottom of the bag body, the bag body was torn from the second cutout portion, and seasoned by sprinkling the attached seasoning.

  After seasoning, the noodles were reconstituted with hot water and were sufficiently drained, and did not feel watery when chewing yakisoba.

  In addition, when fried noodles were cooked in the same manner by performing recuperation for 2 minutes and 30 seconds instead of the above-mentioned rejuvenation for 3 minutes, the noodles can be made into a fried noodle that has a better texture than the core without a core. It was. Since the self-supporting bag of the present invention has a liquid-permeable nonwoven fabric disposed on the top of the contents, the noodle mass can be prevented from floating during hot water reconstitution, and the non-woven fabric covers the surface of the noodle mass and steams. Performed uniformly and quickly.

  In this way, the instant food containing the self-supporting bag according to the present invention, the noodle strings and ingredients do not flow out during hot water cutting, and not only the hot water cutting time can be shortened, but also the hot water reversion time can be shortened, And it was excellent that a suitable texture could be obtained.

Example 2
(1) Manufacture of self-supporting bag (i) 12 μm-thick straight-cut alumina-deposited biaxially stretched polyethylene terephthalate film (product name “IB-PET-PTUB”, manufactured by Dai Nippon Printing Co., Ltd.), thickness, as a barrier layer Two-component cured nylon film (product name “Bonyl W”, manufactured by Kojin Co., Ltd.) with a thickness of 15 μm and unstretched polyethylene film (product name “L4102”, manufactured by Toyobo Co., Ltd.) with a thickness of 40 μm Lamination was performed using a urethane resin adhesive to produce a laminated film.

(Ii) The laminated film is used, and a thermal bond type co-pressed short fiber nonwoven fabric (product name “Sunmore 1320”, manufactured by Sanwa Paper Co., Ltd., polypropylene core / polyethylene coated fiber, basis weight 20 g / A self-supporting bag was produced in the same manner as in Example 1 except that m ² ) was used.

(2) Manufacture of instant foods Using the self-supporting bags produced in (1) above, instead of commercially available fried noodles in containers, commercially available fried udon noodles (trade name “old-fashioned fried udon”, Toyo Suisan Co., Ltd. Except for using the company, an instant food containing a self-supporting bag was produced in the same manner as in Example 1.

(3) Preparation of instant food The instant food manufactured in (2) above is torn by hand from the first 15mm cutout from the top to remove the top seal and placed on the liquid-permeable nonwoven fabric. The placed bag with seasonings was taken out, hot water was poured from the top of the liquid permeable nonwoven fabric until the liquid permeable nonwoven fabric was immersed, and left for 5 minutes (specified cooking time) to perform hot water reconstitution. In addition, since the straight-cutting alumina vapor-deposited biaxially stretched polyethylene terephthalate film was laminated, it was able to tear straightly almost parallel to the top seal portion.

  Next, the upper part of one side seal of the self-supporting bag body was picked and held with a finger, the bottom seal portion was supported by the remaining hands, and the bag body was faced downward, and hot water was cut from the liquid-permeable nonwoven fabric. The hot water was not striped, and the hot water was cut off after waiting for about 10 seconds until the dropping interval became approximately 1 second. However, the noodle strings and kayak did not flow out at all.

  After the hot water was cut off, the bag body was made independent, the contents were dropped onto the bottom of the bag body, the bag body was torn from the second cutout portion, and seasoned by sprinkling the attached seasoning.

  The seasoned noodles were reconstituted with hot water and sufficiently drained, and did not feel watery when chewing yakisoba.

  In addition, when baked udon was cooked in the same manner by tempering for 3 minutes and 30 seconds instead of the above-mentioned 5 minutes of hot water refining, it was possible to make baked udon with better texture than noodles with a waist but no core. It was. Since the self-supporting bag of the present invention has a liquid-permeable nonwoven fabric disposed on the top of the contents, the noodle mass can be prevented from floating during hot water reconstitution, and the non-woven fabric covers the surface of the noodle mass and steams. Performed uniformly and quickly.

Example 3
(1) Manufacture of self-supporting bag (i) Biaxially stretched polypropylene film (product name “FOR”, manufactured by Futamura Chemical Co., Ltd.) with a thickness of 20 μm, Biaxially stretched nylon film with a thickness of 15 μm (product name “Bonyl W”) ”, Manufactured by Kojin Co., Ltd.), and an unstretched polyethylene film having a thickness of 40 μm (product name“ L4102 ”, manufactured by Toyobo Co., Ltd.) using a two-component curable urethane resin adhesive, Manufactured.

  (Ii) A self-supporting bag was produced in the same manner as in Example 1 except that the above laminated film was used. However, the main body opening at the top of the self-supporting bag body was sealed by heat sealing with a seal width of 5 mm at the time of bag making.

(2) Manufacture of instant foods Using the self-supporting bags manufactured in (1) above, commercially available rice noodles (trade name “Kenmin Yaki Beef”, manufactured by Kenmin Foods Co., Ltd.), Harusame (product name “Mungo Harusame”, 150g each of pasta (trade name “Hayayudo Penne”, manufactured by Nippon Flour Mills Co., Ltd.) made in China and imported from Japan Starch Industry Co., Ltd. The unsealed bag was filled from the unsealed portion, and the unsealed portion was sealed with an impulse sealer having a width of 5 mm to produce an instant food containing the freestanding bag.

(3) Cooking of instant food The bag body was torn by hand from the first notch of 15 mm from the upper end of the instant food produced in (2) above to remove the top seal portion, and the top seal portion was removed. With the opening left open, pour hot water until the liquid-permeable nonwoven fabric soaks, release the hand and let the opening close naturally, and then refill the hot water every minute. I tasted pasta. The results of hot water reconstitution and hot water cutting are shown in Table 1. In addition, the designated cooking method of pasta is boiled for 3 minutes with boiling water, whereas in this method, cooking is performed by reconstitution with hot water. Rice noodles and harusame were foods that could be reconstituted in a shorter time than the designated cooking time and had a diameter of 1 mm when the hot water was cut off, but did not flow out at all.

Example 4
(1) Manufacture of self-supporting bag (i) 12 μm-thick straight-cut alumina-deposited biaxially stretched polyethylene terephthalate film (product name “IB-PET-PTUB”, manufactured by Dai Nippon Printing Co., Ltd.), thickness, as a barrier layer Two-component cured nylon film (product name “Bonyl W”, manufactured by Kojin Co., Ltd.) with a thickness of 15 μm and unstretched polyethylene film (product name “L4102”, manufactured by Toyobo Co., Ltd.) with a thickness of 40 μm Lamination was performed using a urethane resin adhesive to produce a laminated film.

  (Ii) A self-supporting bag was produced in the same manner as in Example 1 except that the above laminated film was used.

(2) Manufacture of instant foods Using the self-supporting bags manufactured in (1) above, instead of commercially available yakisoba in containers, commercially available bags of alpha rice (trade name “Shiramai”, manufactured by Onishi Foods Co., Ltd.) The same as in Example 1 except that 150 g is filled into the main body from the unsealed portion, the unsealed portion is sealed with an impulse sealer with a width of 5 mm, and the upper end of the opening of the self-supporting bag body is sealed with an impulse sealer with a width of 5 mm. Operated to produce an instant food in a self-supporting bag.

(3) Cooking of instant food From the top of the liquid-permeable nonwoven fabric, tear the bag body by hand from the 15 mm first cutout of the instant food manufactured in (2) above, and remove the top seal part. Hot water was poured until the permeable nonwoven fabric soaked and left for 10 minutes to perform hot water reconstitution.

  Next, the upper part of one side seal of the self-supporting bag body was picked and held with a finger, the bottom seal portion was supported by the remaining hands, and the bag body was faced downward, and hot water was cut from the liquid-permeable nonwoven fabric.

  After the hot water was cut off, the bag body was made independent, the contents were dropped on the bottom of the bag body, and the bag body was torn and eaten from the second notch.

  Moreover, it replaced with the said 10 minute hot water return, performed hot water return for 3 minutes, and when the steaming time for 4 minutes was taken after hot water cutting, it was able to be set as the rice excellent in the texture without a core. In addition, in the above-mentioned commercially available α rice in a bag (trade name “Shirame”, manufactured by Onishi Foods Co., Ltd.), the specified hot water reversion time is 20 to 30 minutes (specified cooking time). When filled and cooked, it was found that the cooked rice was soft even in 10 minutes and the hot water reconstitution time could be shortened.

  Moreover, the self-supporting bag of the present invention was able to steam the contents with the liquid-permeable nonwoven fabric, shortened the hot water rejuvenation time, and cooked the cooked rice evenly by the steaming effect. Moreover, since water-soluble starch flows out at the time of hot water cutting, the suitable food texture of (alpha) rice which was not obtained with the conventional cooking method was obtained. It should be noted that the rice grains did not flow out of the liquid-permeable nonwoven fabric during hot water cutting.

Comparative Examples 1-3
Using the commercial products used in Examples 1, 2, and 4, cooking was performed as described, and Comparative Examples 1 to 3 were made. Table 2 shows the results of hot water reconstitution, hot water cutting, and taste. In particular, the alpha rice used in Example 4 remained cored in the rice that was at the top of the bag when pouring hot water up to the irrigation line, while the rice that was at the bottom of the bag was excessive in water due to the high amount of water-soluble starch. It became.

  Since the self-supporting bag body of the present invention can efficiently perform hot water reconstitution and hot water cutting, the amount of remaining hot water during hot water cutting can be reduced and the taste can be improved. In addition, rice grains such as α-rice, which have been difficult to cook, can be reconstituted and drained, and can be cooked using only these. Therefore, the range of ingredients is expanded and useful.

It is a schematic plan view of the self-supporting bag according to the present invention in which the outer periphery is heat-sealed without filling the contents. It is a schematic sectional drawing in line XX shown in FIG. It is a schematic front view of the instant food containing a self-supporting bag according to the present invention. It is a schematic sectional drawing in line YY shown in FIG. It is a schematic front view of one Example at the time of manufacturing the self-supporting bag body which concerns on this invention with a stand pack bag making machine. It is a schematic sectional drawing in line XX shown in FIG. It is a schematic front view which shows one Example of the bag body with a chuck | zipper at the time of manufacturing the self-supporting bag body based on this invention with a stand pack bag making machine. It is a schematic front view which shows one Example which manufactured the self-supporting bag body based on this invention with the stand pack bag making machine, and formed the handle part in the side seal part.

Explanation of symbols

6 ... Second notch,
7 ... First cutout,
8: Folding bottom member,
12 ... food,
13 ... Bag with seasonings,
14 ... Eating tool,
20 ... top seal part,
23 ... chuck,
30 ... bottom seal part,
40 ... draining part (liquid permeable nonwoven fabric),
43 ... Liquid permeable nonwoven fabric upper end seal,
45 ... Liquid permeable nonwoven fabric side seal,
50 ... side seal part,
53 ... handle part,
100 ... bag,
200: Instant food.

Claims (6)

It is a self-supporting bag body having a draining portion made of a liquid-permeable nonwoven fabric between a top seal portion and a bottom seal portion, which is formed by heat-sealing the peripheral edge portions of two opposing wall sheets,
The liquid permeable nonwoven fabric constituting the draining part is heat-sealable,
The draining portion is inserted between the facing wall sheets with the nonwoven fabric folded in two with the bent portion facing the bottom seal portion, and each of the two upper ends of the nonwoven fabric is made of the wall sheet. It is fixed to the inner wall by heat sealing, and the side part of the nonwoven fabric is fixed by heat sealing together with the side sealing part of the wall sheet,
The bottom seal portion is inserted into a lower end of the wall sheet with a folded bottom member having a bent portion folded in two toward the drainage portion, and a peripheral edge of the folded bottom member is the lower end and side seal. A self-supporting bag, which is a folded bottom portion that can be expanded together with a heat seal.   The self-supporting bag body according to claim 1, further comprising a cut portion between the draining portion and the bottom seal portion and between the draining portion and the top seal portion.   An instant food, wherein a food is incorporated between the bottom seal portion and the drainage portion of the self-supporting bag body according to claim 1 or 2.   The instant food according to claim 3, wherein a seasoning-containing bag body is incorporated between the draining portion and the top seal portion.   The instant food according to claim 3 or 4, wherein an eating tool is stored between the draining portion and the top seal portion.   The instant food according to any one of claims 3 to 5, wherein the food is at least one selected from noodles, dried cooked rice, pasta, harusame, or rice noodles.

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