CN208699435U - A kind of fresh-keeping packaging for microwave boiling - Google Patents

Abstract

The utility model discloses a kind of fresh-keeping packagings for microwave boiling, the bag body of food is surrounded by including inside, the packaging structure of bag body includes sequentially connected: inner plastic, intermediate setting layer, surface layer protective layer, inner plastic is equipped with ventilation area, cement is coated with corresponding to setting layer outer surface among ventilation area, surface layer protective layer is equipped with tearing notch, tearing notch inner edge connects tie rod by easy film breakage, bag body uses hot-press sealed, make the inner plastic, ventilation area, confined space is formed on the inside of intermediate setting layer and cement, for in cooking food, make to form the temperature for being higher than vapor boiling point in packaging bag, and it is fresh-keeping so that fresh-keeping packaging is vacuumized.

Description

A kind of fresh-keeping packaging for microwave boiling

Technical field

The utility model relates to Food Packaging technology fields, the more particularly, to fresh-keeping packaging of microwave boiling.

Background technique

Currently, the quick heating method of common food, is that the cooked rear quick sterilization of food is packed into vacuum bag, freezing storage Hiding, two degree of heating again when eating, although this mode solves convenience issue, but add again after the food product refrigeration after being cooked Warm-served food is used, and has lost the nutrition and mouthfeel of food, and if contain vegetables with green leaves in the food reheated, due to part greenery class Contain more Nitrates in vegetables, if the time placed after cooked is too long, under the decomposition of bacterium, nitrate is just It can be reduced into nitrite, there is carcinogenesis, heating can not remove.Therefore this kind of mode is not also popularized.But fresh food exists With convenient and quick heating equipment such as: when micro-wave oven is heated, it is always desirable to which after food obtains sufficiently heating, the water of generation steams Gas is not discharged immediately, is keeping releasing vapor after a certain period of time, makes the environment that micro- boiling is formed when heating, and then close biography Mouthfeel after system kitchen boiling device heating.But exhaust valve is arranged in food packaging easily makes the cost increase of product, and sets There is the food packaging of gas vent or exhaust valve to be difficult to vacuum sealing to extend the shelf life, often relies on and add preservative with additional, undoubtedly Cost is increased again, and fresh food is difficult to enter the places such as office as convenient heating ready-to-eat food.

Utility model content

It is easy to use the purpose of the utility model is to provide a kind of fresh-keeping packaging for microwave boiling, meet food Safety standard is conducive to encapsulate, and can not only vacuumize fresh-keeping, moreover it is possible to be put into togerther micro-wave oven with food in the case where not sealing off Middle heating makes food keep the mouthfeel after the heating of conventional boil equipment.

The technical solution of the utility model includes: a kind of fresh-keeping packaging for microwave boiling, the bag of food is surrounded by including inside Body, the packaging structure of bag body include sequentially connected: inner plastic, fresh-keeping for water lock；Intermediate setting layer is used for printing packaging Mark keeps bag body well-pressed and insulation；Surface layer protective layer prevents breakage for enhancing the intensity of bag body；Bag body is in side Shape bag shaped structure, and the length of rectangular bag shaped structure is 280-350mm, width 110-250mm；

Specifically, it is 7-50mm that the inner plastic, which is equipped with area,²Several air holes, the air hole at least it is following it One mode is arranged: positioned at the edge of the rectangular bag-shaped structural plastic internal layer, being uniformly distributed in ventilation area；Corresponding to institute Ventilation area is stated, the intermediate setting layer outer surface is coated with cement, and the surface layer protective layer is equipped with tearing notch, tearing notch inner edge Tie rod is connected by easy film breakage, the extending part of tie rod one end is in outside the bag body；The bag body uses hot-press sealed, makes described Confined space is formed on the inside of inner plastic, ventilation area, intermediate setting layer and cement.Air hole is evenly distributed on ventilation area It is interior, intermediate setting layer outer surface is conveniently concentrated on coated with cement, saves the dosage of cement, cement is coated on intermediate fixed Type layer outer surface is not contacted with food, ensure that food hygiene, coated on intermediate setting layer outer surface cement for blocking Stomata makes inner plastic encasing food form confined space, the easy film breakage being arranged on the protective layer of surface layer and tie rod covering cement, Cement is protected, is not easy from external damage, only when heating the food in fresh-keeping packaging, cement is sudden and violent when tearing tie rod It outside being exposed to, dissolves cement under the action of water vapour, slackens the bond strength of cement and intermediate setting layer, And when being destroyed under the pressure generated in fresh-keeping packaging with high steam, just it is discharged the vapor in fresh-keeping packaging.

Specifically, inner plastic uses polypropylene (PP) plastics, has three Xiang Gongneng, it blocks moisture faster first It reserves, hydrone discharges more food flavor substances, protect the mouth of food in inner plastic and provision room agitate back and forth Sense, secondly it prevents moisture to infiltrate intermediate setting layer, is conducive to amorphous intermediate layer guarantor's type, finally when being sealed after being packed into food, Be easy to make when vacuumizing bag body polypropylene material to engage using hot-press sealed equipment closed, make food under vacuum conditions by It is stored in fresh-keeping packaging and extends the shelf life.

Further, linen-cotton bagging is additionally provided in the bag body, the linen-cotton bagging is set in the outside of the food, institute State linen-cotton bagging set outside filling fragrance or seasoning.When food is heated in fresh-keeping packaging, hydrone in inner plastic and Volume takes fragrance or seasoning during provision room agitates back and forth, and food is made to have more flavor, when not heating food, linen-cotton bagging Open the effect of isolation food and fragrance or seasoning.

Further, the intermediate sizing layer material is oilpaper or leaching membrane paper, corresponds to the ventilation area, it is described in Between setting layer be equipped with notch, notch inner edge passes through hot composite joint air-permeable paper.Paper wood has heat-proof quality, so that fresh-keeping packaging Interior heat will not reach surface layer, the holding after facilitating heating；Notch inner edge fresh-keeping packet is convenient for by hot composite joint air-permeable paper High-temperature water vapor in dress infiltrates cement, slackens the bond strength of cement and intermediate setting layer.

Further, the intermediate sizing layer material is oilpaper or leaching membrane paper, corresponds to the ventilation area, it is described in Between setting layer be equipped with micropore.

By upper, the air-permeable paper is by intermediate course polyethylene micropore ventilated membrane or non-woven fabrics and is located at intermediate course two sides Polypropylene gas permeable polymer film be combined through heat.

Further, the cement is maltose.Maltose is one kind of carbohydrate, by the malt of amylase-containing Act on starch and be made, toughness is 102~103 DEG C of fusing point, soluble easily in water at high temperature, edible, use maltose as Cement fusing point is close to the temperature of vapor, and high temperature accelerates maltose to be dissolved in the engagement that water slackens maltose and intermediate setting layer Intensity avoids explosion caused by closed environment heating, after so that food is obtained sufficiently heating in fresh-keeping packaging, the vapor of generation It is not discharged immediately, is keeping releasing vapor after a certain period of time, make the environment for forming micro- boiling when heating, and then food is close Mouthfeel after the heating of conventional kitchen boiling device.

Compared with prior art, the utility model has the following beneficial effects: the packaging material of 1. three-deckers used The problem of simple papery packaging microwave steamed food causes papery to pack weak and limp cracking or burning is overcome, and solves list Pure film packaging causes package temperature height after film softening transform, heating to be inconvenient to the problem of holding.2. fresh-keeping packaging food obtains To after abundant heating, the vapor of generation is not discharged immediately, is keeping releasing vapor after a certain period of time, makes to be formed when heating The environment of micro- boiling, so close to conventional kitchen boiling device heating after mouthfeel.3. fresh-keeping packaging gas vent when not heating It is blocked by cement, is easy to vacuum sealing, extend the effective period of food quality of packaging.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model It can be more clearly understood with advantage, below in conjunction with preferred embodiment, and cooperate attached drawing, detailed description are as follows.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram for fresh-keeping packaging for microwave boiling that the utility model embodiment 1 provides.

Fig. 2 is a kind of ventilating structure amplification signal for fresh-keeping packaging for microwave boiling that the embodiment of the present invention 1 provides Figure.

Fig. 3 is a kind of schematic cross-section for fresh-keeping packaging for microwave boiling that the utility model embodiment 1 provides.

Fig. 4 is a kind of section amplification signal for fresh-keeping packaging for microwave boiling that the utility model embodiment 1 provides Figure.

Fig. 5 is that a kind of structure for fresh-keeping packaging air-permeable paper for microwave boiling that the utility model embodiment 1 provides is shown It is intended to.

Fig. 6 is a kind of fresh-keeping packaging another kind air-permeable paper for microwave boiling that the utility model embodiment 1 provides Structural schematic diagram.

Fig. 7 is a kind of schematic cross-section for fresh-keeping packaging for microwave boiling that the utility model embodiment 2 provides.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is logical Refer to direction shown in Figure of description.

Embodiment 1

In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, the present embodiment provides a kind of fresh-keeping packagings for microwave boiling, including inside It is surrounded by the bag body 1 of food 2, is coated on the tie rod 3 connected in the bag body 1 outside food, covers the ventilation area of 1 internal layer of bag body 41, guarantee fresh-keeping packaging after evacuation, the cement 51 being arranged outside ventilation area is not destroyed, and remains true in fresh-keeping packaging Reciprocal of duty cycle.

In conjunction with shown in Fig. 3 and Fig. 4, illustrate the fresh-keeping packaging for microwave boiling, packaging structure includes sequentially connected: modeling Expect internal layer 4, it is fresh-keeping for water lock；Intermediate setting layer 5 is identified for printing packaging, keeps bag body well-pressed and insulation；Table Layer protective layer 6 prevents breakage for enhancing the intensity of bag body；Bag body is square bag shaped structure, and the length of rectangular bag shaped structure For 280-350mm, width 110-250mm；It is 7-50mm that the inner plastic, which is equipped with area,²Several air holes 42, it is described At least one mode of air hole is arranged: positioned at the edge of the rectangular bag-shaped structural plastic internal layer, being uniformly distributed in In gas region；Corresponding to the ventilation area, the intermediate setting layer outer surface is coated with cement, on the surface layer protective layer Equipped with tearing notch 61, tearing notch inner edge connects tie rod 3 by easy film breakage 62, and the extending part of tie rod one end is in outside the bag body；It is described Bag body uses hot-press sealed, makes to form confined space 7 on the inside of the inner plastic, ventilation area, intermediate setting layer and cement. Air hole is evenly distributed in ventilation area, is conveniently concentrated on intermediate setting layer outer surface coated with cement, is saved cement Dosage, cement is coated on intermediate setting layer outer surface and do not contact with food, ensure that food hygiene, be coated on intermediate sizing Layer outer surface cement makes inner plastic encasing food form confined space, is arranged on the protective layer of surface layer for blocking air hole Easy film breakage and tie rod cover cement, protect cement, be not easy from external damage, only heating fresh-keeping packaging in When food, cement is exposed to outer when tearing tie rod, is dissolved cement under the action of water vapour, is slackened engagement The bond strength of agent and intermediate setting layer, and when being destroyed under the pressure generated in fresh-keeping packaging with high steam, just make Vapor discharge in fresh-keeping packaging.

Inner plastic uses polypropylene (PP) plastics, has three Xiang Gongneng, it blocks faster reserving for moisture, water first Molecule discharges more food flavor substances, protects the mouthfeel of food in inner plastic and provision room agitate back and forth, secondly it It prevents moisture to infiltrate intermediate setting layer, is conducive to amorphous intermediate layer guarantor's type and is sealed finally when being sealed after being packed into food using hot pressing Jaws equipment is easy to make polypropylene material engagement closed when vacuumizing bag body, is stored in food under vacuum conditions fresh-keeping It extends the shelf life in packaging.

Centre sizing layer material is oilpaper or leaching membrane paper, corresponds to the ventilation area, sets on the intermediate setting layer Jagged 52, notch inner edge passes through hot composite joint air-permeable paper 53.Paper wood has heat-proof quality, so that the heat in fresh-keeping packaging Surface layer will not be reached, the holding after facilitating heating；Notch inner edge is by hot composite joint air-permeable paper, convenient for the height in fresh-keeping packaging Heated steam infiltrates cement, slackens the bond strength of cement and intermediate setting layer.

Specifically, such as Fig. 5, air-permeable paper is by the polyethylene micropore ventilated membrane or non-woven fabrics 54 of intermediate course and positioned at centre The polypropylene gas permeable polymer film of interlayer two sides is combined through heat.

Cement is maltose.Maltose is one kind of carbohydrate, starch is acted on by the malt of amylase-containing and It being made, toughness is 102~103 DEG C of fusing point, soluble easily in water at high temperature, and it is edible, use maltose to connect as cement fusing point The temperature of nearly vapor, and high temperature accelerate maltose be dissolved in water slacken maltose and centre setting layer bond strength avoid it is closed Explosion caused by environment heating, after so that food is obtained sufficiently heating in fresh-keeping packaging, the vapor of generation is not discharged immediately, It is keeping releasing vapor after a certain period of time, is making to form the environment of micro- boiling when heating, and then food is close to conventional kitchen boiling Mouthfeel after equipment heating.

As shown in fig. 6, the fresh-keeping packaging provided in this embodiment for microwave boiling, further includes setting layer among another kind Structure, centre sizing layer material is oilpaper or leaching membrane paper, corresponds to the ventilation area 41, the intermediate setting layer is equipped with Micropore 54.

Embodiment 2

As shown in connection with fig. 7, the fresh-keeping packaging provided in this embodiment for microwave boiling is surrounded by food 2 including inside Bag body 1 is additionally provided with linen-cotton bagging 8 in bag body, and the linen-cotton bagging is set in the outside of the food, and the linen-cotton bagging set is outer Fill fragrance or seasoning 9 in side.When food is heated in fresh-keeping packaging, hydrone agitates back and forth in inner plastic and provision room During volume take fragrance or seasoning, so that food is had more flavor, when not heating food, linen-cotton bagging open isolation food with The effect of fragrance or seasoning.

Packaging structure includes sequentially connected: inner plastic 4, fresh-keeping for water lock；Intermediate setting layer 5, for printing packet Dress mark keeps bag body well-pressed and insulation；Surface layer protective layer 6 prevents breakage for enhancing the intensity of bag body；Bag body is in Rectangular bag shaped structure, and the length of rectangular bag shaped structure is 280-350mm, width 110-250mm；The inner plastic is equipped with Area is several air holes 42 of 7-50mm2, at least one mode of the air hole is arranged: being located at the rectangular bag-shaped knot The edge of structure inner plastic, is uniformly distributed in ventilation area；Corresponding to the ventilation area, the intermediate setting layer appearance Face is coated with cement, and the surface layer protective layer is equipped with tearing notch 61, and tearing notch inner edge connects tie rod 3, tie rod by easy film breakage 62 The extending part of one end is in outside the bag body；The bag body uses hot-press sealed, makes the inner plastic, ventilation area, centre Confined space 7 is formed on the inside of setting layer and cement.

Centre sizing layer material is oilpaper or leaching membrane paper, corresponds to the ventilation area, sets on the intermediate setting layer Jagged 52, notch inner edge passes through hot composite joint air-permeable paper 53.Air-permeable paper is by intermediate layer polyethylene microporous breathable film or nonwoven Cloth and polypropylene gas permeable polymer film positioned at middle layer two sides are combined through heat.Cement is maltose, inner plastic Using polypropylene (PP) plastics.

The above is preferred embodiments of the present invention, certainly cannot with this come limit the utility model it Interest field, it is noted that for those skilled in the art, before not departing from the utility model principle It puts, several improvement and variation can also be made, these, which improve and change, is also considered as the protection scope of the utility model.

Claims (6)

1. a kind of fresh-keeping packaging for microwave boiling is surrounded by the bag body of food including inside, the packaging structure of bag body includes suitable Secondary connection: inner plastic, it is fresh-keeping for water lock；Intermediate setting layer is identified for printing packaging, keeps bag body well-pressed, and is protected Temperature is heat-insulated；Surface layer protective layer prevents breakage for enhancing the intensity of bag body；Bag body is square bag shaped structure, and rectangular bag-shaped knot The length of structure is 280-350mm, width 110-250mm；It is characterized in that

It is 7-50mm that the inner plastic, which is equipped with area,²Several air holes, at least one mode of the air hole is arranged: Positioned at the edge of the rectangular bag-shaped structural plastic internal layer, it is uniformly distributed in ventilation area；Corresponding to the ventilation area, The intermediate setting layer outer surface is coated with cement, and the surface layer protective layer is equipped with tearing notch, and tearing notch inner edge passes through easy film breakage Tie rod is connected, the extending part of tie rod one end is in outside the bag body；The bag body use hot-press sealed, make the inner plastic, Confined space is formed on the inside of ventilation area, intermediate setting layer and cement.

2. a kind of fresh-keeping packaging for microwave boiling according to claim 1, which is characterized in that also set in the bag body There is linen-cotton bagging, the linen-cotton bagging is set in the outside of the food, linen-cotton bagging set outside filling fragrance or seasoning Material.

3. a kind of fresh-keeping packaging for microwave boiling according to claim 1, which is characterized in that the intermediate setting layer Material is oilpaper or leaching membrane paper, corresponds to the ventilation area, and the intermediate setting layer is equipped with notch, and notch inner edge passes through Hot composite joint air-permeable paper.

4. a kind of fresh-keeping packaging for microwave boiling according to claim 1, which is characterized in that the intermediate setting layer Material is oilpaper or leaching membrane paper, corresponds to the ventilation area, and the intermediate setting layer is equipped with micropore.

5. a kind of fresh-keeping packaging for microwave boiling according to claim 3, which is characterized in that the air-permeable paper is in Between interlayer polyethylene micropore ventilated membrane or non-woven fabrics and polypropylene gas permeable polymer film positioned at intermediate course two sides it is multiple through heat It closes.

6. a kind of fresh-keeping packaging for microwave boiling according to claim 1, which is characterized in that the cement is wheat Bud sugar.