CN206691689U - A kind of packaging structure for being used to reject contaminated product - Google Patents
A kind of packaging structure for being used to reject contaminated product Download PDFInfo
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- CN206691689U CN206691689U CN201621095911.8U CN201621095911U CN206691689U CN 206691689 U CN206691689 U CN 206691689U CN 201621095911 U CN201621095911 U CN 201621095911U CN 206691689 U CN206691689 U CN 206691689U
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- Prior art keywords
- negative pressure
- pressure
- container
- packaging structure
- bag
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/048—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D2577/041—Details of two or more containers disposed one within another
Abstract
It the utility model is related to a kind of packaging structure for being used to reject contaminated product, the double-decker formed with internal container and external container, and between internal container and external container it is negative pressure structure, the negative pressure structure includes negative pressure pressure reservoir part, and the gas flow in the negative pressure pressure reservoir part is more than the gas flow in the other parts in the negative pressure structure in addition to the negative pressure pressure reservoir part；The ventilative parameter of the packaging structure is：The steam penetrating capacity of external container is not higher than 5.0g/ (m2.24h)；Oxygen transit dose is not higher than 1000cm3/(m2.24h.0.1MPa)；Each packaging structure reduces weight and must not exceed 0.2%.The utility model can quickly eliminate the product of leakage with low production cost, it is ensured that product will not be contaminated before use, reduce malpractice.
Description
Technical field
A kind of liquids packaging product is the utility model is related to, especially a kind of packaging knot for being used to reject contaminated product
Structure.
Background technology
Liquid alleged by the utility model includes edible liquid beverage, flavor enhancement, food liquid additive；Medicine liquid
Body preparation, infusion preparation, injection；Household chemicals preparation；Or industrial other chemicals.
In aforesaid liquid preparation, including the preparation that a part is easily infected by bacterial, such as：Plain chocolate, beverage containing carbohydrate, Portugal
Grape sugar infusion preparation, nutrient solution etc..These liquid include the nutrient of bacterial growth needs, therefore once infect bacterium, then
Bacterium can grow rapidly breeding wherein, and liquid preparation is damaged.Bacterium in the liquid preparation of foodstuff is transfinited, and can be made
Into eater's diarrhoea, viral infection can be produced.Bacterium is transfinited in infusion preparation, can produce malpractice.
Bacterium infection is prevented, liquid preparation needs more preferable product processing technique and production environment, it is also desirable to has more
Liquid preparation is hedged off from the outer world, prevented by the bacterium infection in the external world by good product packaging, product packaging, as property is stable
The good aluminium film packaging of glass bottle packaging, isolation effect, the plastic bottle packaging with certain degree of hardness etc..But in addition to above-mentioned packaging material,
Sometimes the softer soft film material packaging of quality must be used：It common are packed plain chocolate, soft bag infusion, packed nutrient solution.It is soft
The quality of membrane material is softer, and a bag body is made by the way of heat-sealing is welded, be then welded on bag body mouth pipe and lid (lid with
The combination of mouth pipe, hereinafter referred to as lid), therefore, because soft film material packaging is scratched, processes situations such as welding quality is bad,
Easily cause and pollution hole is produced in mantle packaging.Signified pollution hole refers to because mantle packaging is scratched or is welded not herein
Destruction caused by good or other reasons to mantle so that mantle packaging loses the protective effect to contained liquid, loses
Make the function that liquid preparation is hedged off from the outer world.Certainly, if the destruction of mantle is than more serious, the built-in liquid of mantle can flow out,
It was observed that the liquid of outflow can perceive the destroyed situation of mantle immediately.If can mantle destruction it is very trickle so that liquid
Body all can not smoothly flow out, then be not difficult to observe by mantle then by instrument and be destroyed.It should be noted that the diameter of bacterium
Very small, the hole bacterium that liquid is difficult to flow out easily propagates through, therefore we are referred to as these holes to pollute hole.
Patent CN200920079898.0 vacuum leakproof soft infusion bags and a kind of transfusions of CN200610022330.6 are soft
Bag, in this two patents, propose to use double casing, cover an outer bag, and the folder between interior outer bag again outside internal layer
Layer extracts vacuum, when inner bag has hole, the pressure of vacuum can by the liquid in inner bag from hole " suction " into interlayer, then meat
Observe to observe and have the liquid being sucked out in interlayer, then assert inner bag damage, reject it.
But there are some so that the technology can not be realized in technology disclosed above：1st, the pressure in inner bag is not air
Pressure, if only liquid does not have atmospheric pressure, the pressure in inner bag is in itself also below atmospheric pressure, even if being true in interlayer
It is empty, it is also difficult to suction out the liquid in inner bag.
2nd, when interior outer bag extracts negative pressure, all it is adjacent between interior outer bag, gap and space is not actually existed after being adjacent to, no
Exist gap and space just can not further gas bleeding, be actually equal to and drain the gas in interlayer, there is no any gas
Body, wherein gas content are " 0 ", are that " 0 " is normal condition in the very close to each other and local gas content in space, actually
In this case negative pressure space not be present；Pressure is equal or at least without obvious area in fluid pressure and interlayer in inner bag
Not, no pressure is poor, wants to realize that " attraction " cannot be realized by way of negative pressure.
Therefore, above-mentioned two patent document disclosures, are actually unable to reach the purpose of detection pollution hole, and it is managed
By can not be realized in actual production, can not apply.
Further, since there is the more low better theoretical point view of interior outer bag negative pressure in technology disclosed above, it is believed that long-term to keep
Constant negative pressure can allow product to maintain quality really up to the mark, but the direct result of this viewpoint is：1st, inner bag and outer bag are all
Need the good material of air-tightness to make, add the production cost of product；2nd, it is long-term to keep larger with normal atmosphere pressure difference
Lower negative pressure, allow inner bag and outer bag to be chronically in the very high environment of inside and outside differential pressure, easily allow inner bag and outer bag to break respectively
It is bad, the ex factory pass rate of product is reduced on the contrary, also increases the production cost of product.
For these reasons, the utility model people combines the knowhow of itself liquids packaging product for many years, Yi Jichang
The observation of phase and substantial amounts of experiment, packaged form and structure and packaging material to liquids packaging product are optimized, energy
It is enough fast and effeciently to reject defective product, and enable to the cost of product to reach optimization.
Utility model content
To solve the above problems, the utility model provides a kind of packaging structure for being used to reject contaminated product.
Concrete technical scheme of the present utility model is：A kind of packaging structure for being used to reject contaminated product, has inside
The double-decker of container and external container composition, and be negative pressure structure between internal container and external container, the internal container
The liquid preparation accommodated including internal container body and Qi Nei, it is characterised in that：The negative pressure structure includes negative pressure pressure reservoir portion
Point, and the gas flow in the negative pressure pressure reservoir part be more than the negative pressure structure in except the negative pressure pressure reservoir part with
Gas flow in outer other parts；The ventilative parameter of the packaging structure is：According to steam penetrating capacity determination method
(YBB00092003-2015) the first method determines, and the steam penetrating capacity of external container is not higher than 5.0g/ (m2.24h)；According to
The method of gas permeation amount determination method (YBB00082005-2015) first determines, and oxygen transit dose is not higher than 1000cm3/
(m2.24h.0.1MPa)；The water vapo(u)r transmission of whole packaging structure：According to steam penetrating capacity determination method
(YBB00092003-2015) the 3rd method determines, and each packaging structure reduces weight and must not exceed 0.2%.
Further, the internal container is soft bag, and the soft bag is made by soft film material, and the external container is
The bag-like container of sealing.
Further, the soft bag is provided with the lid as liquid preparation import or export, the negative pressure pressure reservoir
Part is arranged at the lid of the soft bag.Space at this can be that lid profile supports the space structure to be formed to outer bag,
The inside can form the space of stored air.
Further, the negative pressure pressure reservoir part is in three-dimensional knot that is porous provided around lid or being recessed more
Structure, the space in hole or in depression can accommodate portion of air.
Optionally, the negative pressure pressure reservoir part is the groove set on the bag-like container body, and the groove possesses
Certain intensity, it will not be properly fit onto at atmosheric pressure at the lid of the soft bag or at other contact surfaces.
Optionally, the negative pressure pressure reservoir part is the support being arranged between the internal container and external container
Part, for the support member between internal container and external container, it forms the space for accommodating gas with internal container.
Further, the support member is the internal space structure for setting multiple through holes or recess.
Further, any group that is shaped as circular, ellipse, triangle or polygon or former figures of the through hole
Close.
Further, the recess is shaped as circle, ellipse, hemispherical, triangle or polygon or former figures
Any combination.
Further, the external container is that double-deck flexible film seal is formed.
Further, the thicknesses of layers in the double-deck mantle is 0.10+/- 0.02mm.
Optionally, a layer thickness in the double-deck mantle is 0.15+/- 0.02mm, and one is precast on this layer of mantle
The pit of internal container is accommodated, another a layer thickness is 0.10+/- 0.02mm.
Further, discoloration instruction material is set in the surrounding sealing part of the internal container.The discoloration instruction material
Can to indicate internal container, there occurs liquid preparation leakage using color change.
Further, the discoloration instruction material is color shifting ink.By the color change of ink come indicating liquid preparation
Leak.
Optionally, the discoloration instruction material is humidity indicating card.Color is occurred by the color bar on humidity indicating card
The degree of change judges whether liquid preparation leaks.
Further, the pressure inside the internal container is more than the atmospheric pressure value of the negative pressure structure.
Further, the internal container includes a certain amount of gas, and the pressure of the internal container is by the gas in it
There is provided；Wherein, in the case that pollution hole occurs in internal container body, liquid preparation leaks into negative pressure knot under the pressure of the gas
In structure.
Further, the negative pressure structure is included to the pressure balance part that pressure is balanced everywhere in negative pressure structure,
The pressure balance part is：Between the soft bag and bag-like container formed negative pressure structure after, be centered around soft bag surrounding not with it is soft
The bag-like container inner surface of bag contact, which is formed, is bonded to each other place.
Further, the negative pressure structure includes applying the soft bag bag body vacuum force part of vacuum force
With pressure balance part, the negative pressure effect partial is the joint place of soft bag and bag-like container；Pressure balance part is formed at
Negative pressure effect partial periphery, described pressure balance part are connected with negative pressure effect partial.
Further, the negative pressure structure also includes being used for the slotted eye for detecting negative pressure structure vacuum, in the slotted eye pair
Sealing sticker is posted on the external container answered.
Further, the vacuum atmospheric pressure value in the negative pressure structure is relative degree of vacuum, and its initial value is -50Pa
To -0.1MPa, -5KPa is preferably less than；Thereafter vacuum gradually decay to no more than be equal to 0, preferably thereafter vacuum by
Degradation, which reduces to, is not more than -5Pa.
Further, the area ratio of described negative pressure structure and the soft bag is 1: 0.1~1：8, preferably 1: 0.5~
1：4.
Further, described external container includes lid and box body two parts, and box body is provided with storing by medial recess
The plane of bucket and storing bucket surrounding is formed, and lid is bonded the sealing formed to storing bucket with the plane of surrounding.
The beneficial effects of the utility model are：
1st, it is negative pressure structure between the utility model internal container and external container, internal container includes and atmospheric pressure
After equal or bigger gas, the pressure of liquid preparation in internal container is set to be more than atmospheric pressure value in negative pressure structure, therefore,
When pollution hole occurs in internal container, liquid preparation is pressed into negative pressure structure, forms the water mark being substantially clear to, water droplet, water
Mist and liquid, during later product quality inspection or edible, use, rejecting inner bag has the defects of pollution hole product, ensures production
Product safety.
2nd, the utility model is provided with the pressure reservoir part of storage negative pressure, can avoid internal container and external container it
Between extract vacuum when cause internal container and external container to be close together, so as to avoid internal container and external container no pressure
Cause the situation for thering is pollution hole but aneroid body preparation to leak between internal container and external container, can pick effectively, in time
Except internal container has the defects of pollution hole product, ensure product safety.
3rd, the utility model sets the material thickness parameter of external container and the face shaping of external container, can be with
Most economical form realizes the protection to internal container, while can reject inner bag effectively, in time has the defects of pollution hole to produce
Product, and relatively low negative pressure state is returned to after faulty goods is rejected, ensure the product safety dispatched from the factory.
4th, the utility model internally container easily produce leakage place coating color indicator, can quickly realize and let out
The rejecting of product is leaked, avoids product leakage from being misapplied by user.
5th, the pressure of the liquid preparation in internal container is set equal to or more than atmospheric pressure by the utility model so that interior
Pressure difference increase between bag and negative pressure structure, can speed up the Weeding of product leakage, so as to improve the inspection of product leakage
Go out efficiency.
6th, the utility model is provided with the convenient structure for carrying out detection of negative pressure so that product will not be born when detected
The destroyed situation of pressure, so as to ensure that the safety of product.
7th, the utility model is defined to the negative pressure in production, negative pressure within the specific limits, will cause this practicality
The new economic performance in production, storage, transport and use is optimal.
8th, the utility model is selected the negative pressure structure area in structure, in selected negative pressure structure area situation
Under so that economic performance of the utility model in production, storage, transport and use is optimal.
Herein it should be noted that the external container of above-mentioned soft bag must generally water white transparency, and transparency is high, easily
Naked eyes are it is observed that water smoke water droplet in negative pressure structure.Print content on external container should not influence to visually observe negative pressure structure
In water droplet water smoke.
The structure design of the present utility model for being used to observe water droplet water smoke, it can just be found without instrument and equipment to detect
There is pollution hole leakage situation in product.
In the utility model structure, negative pressure structure should be long-term in links such as production, transport, carrying, storages
Keep stablizing lasting relative pressure structure presence.If the relative pressure difference between negative pressure structure and external container ambient atmosphere disappears
Lose, negative pressure structure is changed into normal pressure structure, then loses the effect of detection pollution hole.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model is used to reject the packaging structure of contaminated product.
Fig. 2 is the component structural schematic diagram that the utility model is used to reject the packaging structure of contaminated product.
Wherein 1- internal containers, 11- internal container bodies, 12- liquid preparations, 13- lids, 131- stereochemical structures, outside 2-
Container, 3- negative pressure structures, 31- negative pressure pressure reservoirs part, 32- pressure balances part, 33- air flow through passage.
Embodiment
The design concept of this product is：Packaging structure is using the design of three parts pressure value plus the sky for storing negative pressure pressure
Between structure, and allow the more obvious color indicator of leakage, be specially：It is to include the decoction of gas for not in internal container
Less than the pressure texture of normal pressure (being equal to or more than atmospheric pressure), middle interlayer is negative pressure, is normal pressure (air outside external container
Pressure)；It is designed with the space structure for storing interlayer negative pressure value (vacuum).Pressure in the internal container of this product be equal to or
More than atmospheric pressure, and more than the atmospheric pressure value of the negative pressure structure.Internally container easily produce leakage place apply apply change
Color indicator, once there is liquid preparation leakage, it is easy to it is shown and eliminates and.
As depicted in figs. 1 and 2, a kind of packaging structure for being used to reject contaminated product of the utility model, has internal hold
The double-decker that device 1 and external container 2 form, and be negative pressure structure 3 between internal container 1 and external container 2, the inside
Container 1 includes the liquid preparation 12 that internal container body 11 and Qi Nei are accommodated, and the negative pressure structure 3 includes negative pressure pressure reservoir part
31, and the gas flow in the negative pressure pressure reservoir part 31 be more than the negative pressure structure 3 in remove the negative pressure pressure reservoir portion
The gas flow divided in the other parts beyond 31；The ventilative parameter of the packaging structure is：According to steam penetrating capacity determination method
(YBB00092003-2015) the first method determines, and the steam penetrating capacity of external container 2 is not higher than 5.0g/ (m2.24h)；According to
The method of gas permeation amount determination method (YBB00082005-2015) first is determined, and the oxygen transit dose of external container 2 is not higher than
1000cm3/(m2.24h.0.1MPa)；The water vapo(u)r transmission of whole packaging structure：According to steam penetrating capacity determination method
(YBB00092003-2015) the 3rd method determines, and each packaging structure reduces weight and must not exceed 0.2%.
The material selection of the external container and internal container of packaging structure of the present utility model is critically important, especially packaging knot
The permeability of structure is critically important, the restriction of above-mentioned steam penetrating capacity, and the liquid preparation for making to accommodate in whole packaging structure is not allowed
Packaging easily is penetrated, ensures the quality stability of liquid preparation accommodated in it.Depending on the specific kind of the liquid preparation accommodated in it
Class is different, if medicine or food and drink, are typically necessary the sterilization processing that carries out disinfection after packaging.If entire package
Structure determines according to the method for steam penetrating capacity determination method (YBB00092003-2015) the 3rd, and each packaging structure reduces weight and surpassed
0.2% is crossed, then shows the permeability parameter difference (i.e. vapor readily penetrates through) of the packaging, internal medicine or food and drink
It may then infiltrate, or outside pollutant can infiltrate through packaging, internally produce pollution.Therefore, water must be limited
Vapor permeation amount, more than the amount of this restriction, the contaminated possibility increase of content liquid；Moreover the water of whole packaging structure
Vapor permeation amount is also limiting gas-premeable parameter simultaneously.Water vapo(u)r transmission can good (water vapo(u)r transmission mentioned here
It can refer to cannot easily penetrate vapor well；Water vapo(u)r transmission energy difference refers to readily penetrate through vapor.Here " good " and " poor "
Refer to the excellent, bad of material property), then Gas permeability might as well, vice versa.Therefore, the setting of the parameter, defines air
The speed and quantity entered in negative pressure structure.Because certain gas flow in this packaging structure, in internal container be present, it is pressed
The equivalent atmospheric pressure of power, and the outside of external container is also atmospheric pressure, therefore the gas of internal container and ambient atmosphere are oriented negative
The trend permeated in laminated structure.It is unlikely to too fast to prevent the vacuum in negative pressure structure from decaying, attenuation is unlikely to excessive,
Need the gas permeation amount of restriction entire package.
In one embodiment, internal container 1 is soft bag, also referred to as inner bag, and the soft bag is made by soft film material,
External container 2 is the bag-like container of sealing, also referred to as outer bag.
In another embodiment, inner bag is provided with the lid 13 as liquid preparation import or export, the negative pressure pressure
Power storage part 31 is arranged at the lid 13 of the inner bag.Lid 13 is hardware structure, and the confrontation enough of its rigidity is due to outside
Container 2 is inwardly collapsed by caused by atmospheric pressure, and the structure of lid 13 can be formed to external container 2 to be supported, negative when extracting
After pressure, except lid 13, nearby outer remainder can cause inner bag to be close to outer bag because of the reason for negative pressure, or cause outer bag in itself
Material be mutually adjacent to, have only at lid 13 and to produce a space because of the support of lid 13, can be produced in space herein
The effect of one storage negative pressure.Storage underbalance effect principle be：The reason for outer bag is because of negative pressure can inwardly be collapsed, but in lid 13
It will stop collapsing in the case of support, after collapsing to a certain extent, and produce a reverse power (outside), this opposite force
It is due to caused by the elastic reaction of outer bag, outer bag keeps an outside tension force, stretches space herein, makes space herein
Expand, do not increase again in the air content in the case of space enlargement in space, therefore more negative pressure are just formed in the space
Value, is also formed negative pressure pressure reservoir part.
In another embodiment, negative pressure pressure reservoir part 31 porous provided around lid 13 or be recessed more
Stereochemical structure 131 (see Fig. 2), the space in hole or in depression can accommodate portion of air.The stereochemical structure 131 is except storage
Deposit outside negative pressure pressure, moreover it is possible to play a part of strengthening the rigidity of lid 13, even if lid 13 uses more conventional soft material,
Due to there is stereochemical structure 131 that is porous or being recessed more to serve strengthening action, lid 13 is made in the presence of external atmosphere pressure
It will not be pressed together with soft bag, avoid weakening or even losing the ability of negative pressure pressure reservoir.
In another embodiment, one or more groove, each groove are provided with the outer bag as external container 2
All possess certain rigidity, will not be properly fit onto at atmosheric pressure at the lid 13 of soft bag or other outer bags and inner bag
Contact surface at.So, negative pressure pressure reservoir part is formd between the groove in outer bag and the inner bag as internal container 1
31, groove the inside forms the space that can accommodate air.
In another embodiment, the negative pressure pressure reservoir part 31 holds to be arranged on the internal container 1 and outside
Support member between device 2, between internal container 1 and external container 2, it forms and accommodated the support member with internal container 1
The space of gas；Support member can be the internal space structure for setting multiple through holes or recess；Being shaped as through hole is circular, ellipse
Circular, triangle or any combination of polygon or former figures；Recess is shaped as circle, ellipse, hemispherical, triangle
Or any combination of polygon or former figures.
In another embodiment, external container 2 can be any container that can be sealed, such as seal box or sealing
Double-deck mantle, when using seal box, seal box includes by lid and box body two parts, box body medial recess being provided with storage
The plane of thing bucket and storing bucket surrounding is formed, and lid is bonded the sealing formed to storing bucket with the plane of surrounding.When using double-deck
During flexible film seal, mantle can use identical thickness used by this double-deck mantle, such as all be 0.10+/- 0.05mm, excellent
Select 0.10+/- 0.02mm, can also use different thickness, such as double-deck mantle in one layer of mantle thickness for 0.15+/-
0.02mm, precast on this layer of mantle one receiving such as soft bag of internal container 1 pit, another a layer thickness be 0.10+/-
0.02mm, due to producing a pit on that layer of thicker mantle of thickness in advance so that the thinnest part of external container 2 is less than
0.15mm, but can ensure that it is identical or approximate with another layer of 0.10mm mantle intensity, in a word, it is to be ensured that one layer of mantle is stretching
After going out the pit of a receiving internal container 1, the intensity of external container 2 will not be remarkably decreased.
In another embodiment, discoloration instruction material is set in the surrounding sealing part of the internal container 1.The discoloration
Instruction material can indicate that internal container 1 there occurs liquid preparation leakage, can greatly conveniently work using color change
Personnel or user of service reject the liquid preparation product that have leaked.Discoloration instruction material can be used to human body fanout free region
Color shifting ink, it is applied to the easy position leaked of internal container 1, such as four side joint places of soft bag, and
Lid 13 is arranged on the installation position of internal container, and due to weld defect, the installation position of lid 13 is easiest to produce leakage.
Discoloration instruction material can also be humidity indicating card, and color change occurs by the color bar on humidity indicating card
Degree judges whether liquid preparation leaks.Humidity indicating card is a card with the multiple circle points that can become color
Piece, user can quickly and easily be distinguished by the color change of circle points ambient humidity in sealing container or confined space and
The behaviour in service of its internal desiccant.Such as when the color on humidity indicating card is changed into pink from blueness, packaging knot was both understood
Whether the humidity in structure has up to damaged the degree of article, or whether packaging structure fails.
In another embodiment, the internal pressure of the internal container 1 is more than the atmospheric pressure value of the negative pressure structure, also
It is to say, the pressure of the liquid preparation in internal container 1 is more than the air pressure of the negative pressure structure between internal container 1 and external container 2
Value, when so convenient container body 11 internally has pollution hole, liquid preparation 12 leaks into negative pressure knot from internal container 1
Structure.
In another embodiment, the inside of the internal container 1 includes a certain amount of gas, the pressure of internal container 1 by
Gas in it provides；Wherein, in the case that pollution hole occurs in internal container body 11, pressure of the liquid preparation 12 in gas
Under leak into negative pressure structure.Specifically, the gas in such as inner bag of internal container 1 is for example outer in inner bag and external container 2
Remain in the gas in the inner bag after forming the negative pressure structure between bag, i.e., it is just first filling before filling soft bag is inner bag
Wherein, ambient atmosphere is applied in soft bag a part of gas, then causes gas pressure and external atmospheric pressure phase in soft bag
Together.
In another embodiment, the negative pressure structure 3 includes applying suction function to such as soft bag bag body of internal container 1
The vacuum force part and pressure balance part 32 of power, the negative pressure effect partial is soft bag and bag-like container is outer bag
Joint place (not shown)；Pressure balance part 32 is formed at negative pressure effect partial periphery, described pressure balance part
32 are connected with negative pressure effect partial.The negative pressure effect partial is formed at such as soft bag of internal container 1 and external container 2
Such as the joint place of bag-like container, negative pressure pressure reservoir part is connected with suction function part, makes the negative of negative pressure pressure reservoir part
Pressure energy is finally applied in inner packing, and otherwise vacuum force part will not produce lasting vacuum force, is only to take out
The space for emptying air herein after taking negative pressure and compressing herein is " 0 ".Exactly vacuum force part and subatmospheric storage
Part connects so that negative pressure pressure persistently produces caused by subatmospheric storage part, on continuous action to soft bag.If soft bag is a certain
There is pollution hole at place, then can be sucked out liquid preparation and produce the globule, so as to be observed and be removed out.
The pressure balance part 32 is：Between the internal container 1 such as soft bag and such as bag-like container of external container 2
After forming negative pressure structure, it is centered around the bag-like container inner surface formation that soft bag surrounding does not contact with soft bag and is bonded to each other place.
Further illustrate and be：Soft bag is arranged in bag-like container, therefore bag-like container is bigger than soft bag, but if soft bag set
After entering bag-like container, the space of bag-like container is just taken, then vacuum effect is bad, because without negative pressure structure balance portion
Leeway, in order to avoid there is the above situation, make the size of bag-like container more much larger than soft bag in design, when soft bag is inserted in bag
Shape container and after extracting negative pressure so that the remaining a sheet of bag-like container space in soft bag periphery, the space are bag-like container both sides
Inner surface is bonded to each other, therefore pressure balance part is formed at negative pressure effect partial periphery, described pressure balance part with
Negative pressure effect partial connects.The effect of pressure balance part is：Make that the negative pressure in bag-like container is more longlasting, and negative pressure value declines
Deceleration is slack-off (because outside air can slowly infiltrate through bag-like container, therefore negative pressure value can decay), and makes subatmospheric storage portion
Point negative pressure value stepless action on vacuum force part everywhere.The principle of the effect above is：1st, after negative pressure is extracted, bag
Shape container will close up in the presence of negative pressure in itself, and bag-like container is supported by soft bag, produce the support separation effect to both sides again
Fruit, therefore separating effect is supported equivalent to the space in stretching bag-like container so that internal gas weakens and produces negative pressure；2、
The passage that subatmospheric storage part is flowed through by the use of balance portion as air, negative pressure value is put down from the surrounding of soft bag by balance portion
Weighing apparatus is equably conducted in soft bag, therefore plays a part of making soft bag suffered negative-pressure balancing everywhere.
In one embodiment, the negative pressure structure also includes being used for the slotted eye for detecting negative pressure structure vacuum (in figure not
Show), sealing sticker is being posted corresponding to the slotted eye on external container 2.This is used for the slotted eye for detecting negative pressure structure vacuum
It can be hole on lid 13 in stereochemical structure 131 either groove or the hole on support member or groove, can also be clamping
A circular pad between container 1 and external container 2 internally, there is groove or hole thereon, and the groove or hole on these slotted eyes are small
In the sealing sticker pasted on external container 2, meanwhile, this these groove or hole are more than the diameter of the needle tubing of vacuum level detector, this
The needle tubing of sample prescription just vacuum level detector is inserted into negative pressure structure by sealing sticker, while external container 2 will not be caused more
Big ceasma, so as to avoid function phenomenon, it can easily obtain the real vacuum number of degrees value in negative pressure structure.
In one embodiment, the vacuum atmospheric pressure value in the negative pressure structure is relative degree of vacuum, and numerical value is -50Pa
To -0.1MPa, during actual job, for different external containers used by material, using different relative vacuums
Number of degrees value, such as during the use soft film material of external container 2, the relative degree of vacuum numerical value in negative pressure structure is preferably -5KPa.Composition
The soft film material of external container 2 has a variety of, such as transparent PP composite nylon film, and this material has certain gas permeability, first
Relative degree of vacuum can reach -0.1MPa when beginning to extract negative pressure, after storing 15 days in storehouse then as packaging structure finished product,
The negative pressure value of the inside is varied from, because air enters in negative pressure structure so that it is (big that vacuum values can be much larger than -0.1MPa
Refer in -0.1MPa lower than -0.1MPa reduced pressures, it is explained in detail with reference to hereafter), for example, reach -50Pa even -
0.05Pa degree.The change of this negative pressure, the quality of the packaging structure in the utility model specific embodiment is not interfered with, because
For under initial high negative pressure state, have pollution hole and all having occurred and that for the leakage have leaked, will not leak, also not
It must be maintained at for a long time under high negative pressure state, i.e. the high negative pressure used during production is screened to packaging structure, must not
More materials are expended to be used under the high negative pressure state for maintaining packaging structure.Liquids packaging product can so be greatly reduced
Production cost, while the quality of liquids packaging product will not be reduced.
Change for vacuum, the utility model have taken into full account constant vacuum, outside after initial depression, decay
Gas permeation amount parameter, the internal container material character feature of container.Its principle is：If pollution hole be present in internal container,
(i.e. liquid preparation is penetrated into negative pressure structure) then can be then presented in 5 hours under the negative pressure less than -5KPa, this is logical
Cross the general aperture for calculating pollution hole and the relation of liquid toughness is calculated and by verifying for a long time (referring to following
One~table of table three).Situation more than 5 hours is less, but there is also a part.It is therefore contemplated that 5 hours after negative pressure are extracted to look into
Go out to pollute the prime time of hole, spent this time, then can be concluded that substantially and do not pollute hole, thus continue keep compared with
Big negative pressure is then not necessarily to.Long-standing larger negative pressure produces harmfulness to interior packing, and larger negative pressure makes outside bag
Dress produces powerful convergent force, and the extruding force to interior packing is produced after contraction, causes the lid of interior packing to remaining structure
The possibility destroyed is produced, therefore prolonged pressure can not be applied to interior packing, it is necessary to reduces level of vacuum, this implementation
The gas permeation amount parameter of external container in example, internal container material character meet the requirements.Initial depression setting is too high, interior
Portion's packaging can not equally bear pressure and be more easily damaged, while vacuum is too high, and certain impact can be produced to outer packaging,
Make the bad stability of outer packaging, make vacuum decay on the contrary faster, cause within prime time vacuum just insufficient feelings
Condition.
In one embodiment, the vacuum in negative pressure structure is the vacuum thereafter less than -5KPa at the beginning of negative pressure is formed
Decayed to the time and be less than -5Pa.It is less than -5KPa at the beginning of formation negative pressure herein, refers to after the completion of this product is just packed
And extract negative pressure in a period of time after negative pressure and be less than -5KPa, wherein refer to less than -5KPa it is higher than -5KPa reduced pressure,
If -6KPa, -7KPa, -8KPa, -10KPa are signified to be herein less than -5KPa.Certainly conversely, -4KPa, -3KPa, 0KPa
It is then that they are lower than -5KPa reduced pressure more than -5KPa.Described vacuum thereafter decays to the time is less than -5Pa,
Refer to because protecting internal product not caused to deform under prolonged vacuum pressure or destroyed, and the attenuation parameter set, make
Go over no longer possess too high vacuum inside relief with the prime time of leak detection, therefore vacuum is suitably decayed.Need
Bright, " being less than -5Pa " " being less than " therein herein is identical with " being less than " its implication in above-mentioned " being less than -5KPa ".
In one embodiment, the vacuum in negative pressure structure is the vacuum thereafter less than -7KPa at the beginning of negative pressure is formed
Decayed to the time no more than equal to 0.It is less than -7KPa at the beginning of formation negative pressure herein, refers to the product in this packaging structure
After the completion of just packing and extract negative pressure in a period of time after negative pressure and be less than -7KPa, then after a period of time is stored, such as
After 15 days, because the gas in internal container is penetrated into negative pressure structure, and the gas outside external container also penetrates into
Enter into negative pressure structure, cause the gas flow in negative pressure structure to increase, its pressure increases, and the vacuum being embodied in it is in
Linear attenuation, as a result of the material of suitable external container, cause gas pressure in the negative pressure structure after the decay not
The atmospheric pressure that can be more than or equal to outside external container.The relative degree of vacuum that can also be set in negative pressure structure decays to -5Pa.
In one embodiment, the vacuum in negative pressure structure is the vacuum thereafter less than -10KPa at the beginning of negative pressure is formed
Degree is decayed to no more than equal to 0 with the time.It is less than -10KPa at the beginning of formation negative pressure herein, refers to the production in this packaging structure
After the completion of product are just packed and extract negative pressure in a period of time after negative pressure and be less than -10KPa, then after a period of time is stored,
Vacuum in it linearly decays, the gas pressure in negative pressure structure after the decay not more than or equal to external container outside
Atmospheric pressure.The relative degree of vacuum that can also be set in negative pressure structure decays to -5Pa.
In one embodiment, the vacuum in negative pressure structure is the vacuum thereafter less than -3KPa at the beginning of negative pressure is formed
Decayed to the time no more than equal to 0.It is less than -3KPa at the beginning of formation negative pressure herein, refers to the product in this packaging structure
After the completion of just packing and extract negative pressure in a period of time after negative pressure and be less than -3KPa, then after a period of time is stored, in it
Vacuum linearly decay, the gas pressure in negative pressure structure after the decay be not more than or equal to external container outside it is big
Atmospheric pressure.The relative degree of vacuum that can also be set in negative pressure structure decays to -5Pa.
It is above-mentioned " initial Zhen Dudu " and " vacuum is at the beginning of negative pressure is formed " be this packaging structure product just including
Pack and the vacuum in its negative pressure structure after extraction negative pressure between outer packaging in portion.Vacuum refers to tie in this packaging after decay
After structure places a period, remaining vacuum in negative pressure structure.Decay refers to the material due to internal container and external container
Expect the reasons such as performance, there is a small amount of gas to enter in negative pressure structure, the vacuum in negative pressure structure is decayed.
In one embodiment, the permeability of internal container and external container is satisfied with：The vapor of external container is saturating
It is excessive to be not higher than 5.0g/ (m2.24h)；Oxygen transit dose is not higher than 1000cm3/ (m2.24h.0.1MPa)；Whole packaging structure
Water vapo(u)r transmission determined according to steam penetrating capacity determination method, each packaging structure reduces weight and must not exceed 0.2%,
Initial draw vacuum now is as shown in the table with decaying：(unit：KPa).
Table one
| Initially | 0.005 | 0.01 | 0.05 | 0.1 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 |
| 1 day | 0.003 | 0.01 | 0.04 | 0.1 | 0.45 | 0.9 | 1.1 | 1.8 | 2.3 | 2.5 | 3.3 |
| 5 days | 0.003 | 0.005 | 0.03 | 0.08 | 0.4 | 0.7 | 0.8 | 1.5 | 2.1 | 2 | 2.5 |
| 10 days | 0.003 | 0.005 | 0.03 | 0.07 | 0.3 | 0.5 | 0.8 | 1 | 1.8 | 1.6 | 1.6 |
| It is minimum | 0.003 | 0.005 | 0.008 | 0.02 | 0.06 | 0.08 | 0.13 | 0.3 | 0.5 | 0.8 | 1.2 |
Table two (continued one)
| Initially | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 |
| 1 day | 3.6 | 4.2 | 4.2 | 4.3 | 4.8 | 4.3 | 4.5 | 4.1 | 4.8 | 4.8 | 5.8 | 7 |
| 5 days | 3 | 3.2 | 3.5 | 3.1 | 3.6 | 3 | 3.1 | 3.3 | 4.5 | 3 | 3.1 | 5.8 |
| 10 days | 1.6 | 1.9 | 2.6 | 2.8 | 2.9 | 2.9 | 3.1 | 3.1 | 3.5 | 3.3 | 3.9 | 2.8 |
| It is minimum | 1 | 1 | 2 | 1 | 1 | 0.5 | 1.8 | 3 | 2.1 | 1 | 2.1 | 1.8 |
Table three (continued two)
| Initially | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 1 day | 7.4 | 8.3 | 9.1 | 10 | 9.7 | 9.8 | 9.5 | 8.9 | 8.5 | 8.3 | 8.1 |
| 5 days | 5.6 | 7 | 7.5 | 8.1 | 7.5 | 7.8 | 7.6 | 6.9 | 6.9 | 6.5 | 6.3 |
| 10 days | 4.6 | 4.3 | 5.0 | 4.8 | 4.9 | 5.1 | 5.1 | 3.6 | 4.3 | 5 | 2.8 |
| It is minimum | 0.8 | 1.6 | 0.09 | 1.2 | 1.4 | 0.8 | 0.3 | 0.10 | 0.05 | 0.01 | 0.02 |
The vacuum degree that random time measures after " minimum " in above-mentioned table referred to more than 10 days.
It should be noted that because of the external factor such as manufacture craft deviation, the deviation of material property of product, what is obtained is above-mentioned
The gas permeability of laboratory sample has differences, only the data of sample made by representative.
The area ratio of negative pressure structure and such as soft bag of internal container 1 is 1: 0.1~1：8, area ratio is bigger, more favourable
Negative pressure inside holding packaging structure, but increase simply, the production cost of packaging structure will be increased, therefore than more preferably face
Product ratio is 1:0.5~1:4, specific ratio will be that those skilled in the art are configured depending on the specific condition of production.
Internally the surrounding outer one of such as soft bag of container 1, which is enclosed, is designed with the air of balance portion and flows through passage 33, the sky
Air-flow flows through passage 33 and subatmospheric storage part through the passage that passage 33 is the space formation that soft bag surrounding edge is propped up, the air
Connection, negative pressure effect partial is surrounded on again, therefore can be by the pressure conduction of negative pressure storage part to negative pressure service portion
Point.
Described the utility model product, if sealing is tight, energy long-time stable keeps the negative relative in external container,
Be eaten until product or by Clinical practice untill, its principle is identical with outer complex pocket infusion products structure.
The mode that gas formation negative pressure structure is extracted in the external container 2 of the utility model sealing is unlimited.
Packaging structure of the present utility model is similar to taking out negative pressure packaging principle in food packaging items.Its essential distinction：Food
Product packaging purpose is to prevent the food apoilage in packaging, effectively extending effective period of food quality.And packaging of the present utility model
Structure is for extracting the gas between liquid preparation interiors of products container 1 and external container 2, forming negative pressure structure, check, inspection
The sealing property of liquid preparation soft bag is tested, checks whether soft bag occurs leakage.The utility model packaging structure and protection inner bag liquid
Body preparation quality is unrelated, will not more be used for extending the shelf-life of inner bag liquid preparation.
Above-mentioned embodiment is used for illustrating the utility model, rather than the utility model is limited, in this reality
With any modifications and changes in new spirit and scope of the claims, made to the utility model, this is both fallen within
The protection domain of utility model.
Claims (25)
1. a kind of packaging structure for being used to reject contaminated product, has the double-decker that internal container and external container form,
And be negative pressure structure between internal container and external container, the internal container includes the liquid that internal container body and Qi Nei are accommodated
Preparation, it is characterised in that：The negative pressure structure includes negative pressure pressure reservoir part, and the gas in the negative pressure pressure reservoir part
The scale of construction is more than the gas flow in the other parts in the negative pressure structure in addition to the negative pressure pressure reservoir part；The packaging
The ventilative parameter of structure is：According to steam penetrating capacity determination method（YBB00092003-2015）First method determines, external container
Steam penetrating capacity be not higher than 5.0g/ (m2.24h)；According to gas permeation amount determination method (YBB00082005-2015) first
Method determines, and oxygen transit dose is not higher than 1000cm3/（m2.24h.0.1MPa）；The water vapo(u)r transmission of whole packaging structure：According to
Steam penetrating capacity determination method（YBB00092003-2015）3rd method determines, and each packaging structure reduces weight and must not exceed
0.2%。
2. packaging structure as claimed in claim 1, it is characterised in that：The internal container is soft bag, and the soft bag is by mantle
Material is made, and the external container is the bag-like container of sealing.
3. packaging structure as claimed in claim 2, it is characterised in that：The soft bag is provided with as liquid preparation import or gone out
The lid of mouth, the negative pressure pressure reservoir part is arranged at the lid of the soft bag.
4. packaging structure as claimed in claim 3, it is characterised in that：The negative pressure pressure reservoir part is to be set around lid
Put porous or the stereochemical structure being recessed more, the space in hole or in depression can accommodate portion of air.
5. packaging structure as claimed in claim 3, it is characterised in that：The negative pressure pressure reservoir part is the bag-like container
The groove set on body, the groove possess certain intensity, will not be properly fit onto the lid of the soft bag at atmosheric pressure
At body or at other contact surfaces.
6. packaging structure as claimed in claim 1, it is characterised in that：The negative pressure pressure reservoir part is described interior to be arranged on
Support member between portion's container and external container, between internal container and external container, it holds the support member with inside
Device forms the space for accommodating gas.
7. packaging structure as claimed in claim 6, it is characterised in that：The support member sets multiple through holes or recessed to be internal
The space structure of nest.
8. packaging structure as claimed in claim 7, it is characterised in that：Being shaped as the through hole is circular, ellipse, triangle
Or any combination of polygon or former figures.
9. packaging structure as claimed in claim 7, it is characterised in that：Being shaped as the recess is circular, ellipse, hemisphere
Any combination of shape, triangle or polygon or former figures.
10. the packaging structure as described in claim 1-4,6-9 is any, it is characterised in that：The external container is double-deck mantle
Sealing is formed.
11. packaging structure as claimed in claim 10, it is characterised in that：Thicknesses of layers in the double-deck mantle is 0.10
+/-0.02mm。
12. packaging structure as claimed in claim 10, it is characterised in that：A layer thickness in the double-deck mantle is 0.15
+/- 0.02mm, the pit of a receiving internal container is precast on this layer of mantle, another a layer thickness is 0.10+/- 0.02mm.
13. the packaging structure as described in claim 1-9 is any, it is characterised in that：In the surrounding sealing part of the internal container
Discoloration instruction material is set.
14. packaging structure as claimed in claim 13, it is characterised in that：The discoloration instruction material is color shifting ink.
15. packaging structure as claimed in claim 13, it is characterised in that：The discoloration instruction material is humidity indicating card.
16. the packaging structure as described in claim 1-9 is any, it is characterised in that：Pressure inside the internal container is more than
The atmospheric pressure value of the negative pressure structure.
17. packaging structure as claimed in claim 16, it is characterised in that：The internal container includes a certain amount of gas, institute
The pressure for stating internal container is provided by the gas in it；Wherein, in the case that pollution hole occurs in internal container body, liquid system
Agent is leaked into negative pressure structure under the pressure of the gas.
18. the packaging structure as described in claim 2-5 is any, it is characterised in that：The negative pressure structure is included to negative pressure structure
In pressure is balanced everywhere pressure balance part, the pressure balance part is：Shape between the soft bag and bag-like container
Into after negative pressure structure, it is centered around the bag-like container inner surface formation that soft bag surrounding does not contact with soft bag and is bonded to each other place.
19. the packaging structure as described in claim 2-5 is any, it is characterised in that：The negative pressure structure is included to the soft bag
Bag body applies the vacuum force part and pressure balance part of vacuum force, and the negative pressure effect partial is soft bag and bag
The joint place of shape container；Pressure balance part is formed at negative pressure effect partial periphery, described pressure balance part and negative pressure
Power effect partial connects.
20. the packaging structure as described in claim 1-9 is any, it is characterised in that：The negative pressure structure also includes being used to detect
The slotted eye of negative pressure structure vacuum, sealing sticker is being posted corresponding to the slotted eye on external container.
21. the packaging structure as described in claim 1-9 is any, it is characterised in that：Vacuum air pressure in the negative pressure structure
It is -50Pa to -0.1MPa to be worth for relative degree of vacuum, its initial value, and vacuum is gradually decayed to no more than equal to 0 thereafter.
22. the packaging structure as described in claim 2-5 is any, it is characterised in that：Described negative pressure structure and the soft bag
Area ratio is 1: 0.1~1：8.
23. packaging structure as claimed in claim 1, its feature in, described external container includes lid and box body two parts,
The plane that box body is provided with storing bucket and storing bucket surrounding by medial recess is formed, and lid is bonded composition with the plane of surrounding to storage
The sealing of thing bucket.
24. the packaging structure as described in claim 1-9 is any, it is characterised in that：Vacuum air pressure in the negative pressure structure
It is that vacuum, which gradually decays to be not more than, thereafter is equal to 0 less than -5KPa to be worth initial value.
25. the packaging structure as described in claim 2-5 is any, it is characterised in that：Described negative pressure structure and the soft bag
Area ratio is 1: 0.5~1：4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840132 | 2016-09-22 | ||
| CN2016108401324 | 2016-09-22 |
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| CN206691689U true CN206691689U (en) | 2017-12-01 |
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ID=57716639
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| CN201610868023.3A Active CN106275839B (en) | 2016-09-22 | 2016-09-30 | It is a kind of for rejecting the packaging structure of contaminated product |
| CN201621095911.8U Withdrawn - After Issue CN206691689U (en) | 2016-09-22 | 2016-09-30 | A kind of packaging structure for being used to reject contaminated product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275839A (en) * | 2016-09-22 | 2017-01-04 | 王小斌 | A kind of packaging structure for rejecting contaminated product |
| CN114867681A (en) * | 2019-11-07 | 2022-08-05 | 盼嘏篮株式会社 | Portable container with repeated filling structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645570B (en) * | 2018-04-27 | 2020-07-31 | 江苏理工学院 | Sealing detection device of blood perfusion device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2441775C (en) * | 2003-09-23 | 2004-09-28 | Westport Research Inc. | Container for holding a cryogenic fluid |
| CN1961856A (en) * | 2006-11-27 | 2007-05-16 | 四川沱牌药业有限责任公司 | A transfusion soft bag |
| DE102007029587A1 (en) * | 2007-06-27 | 2009-01-08 | Stada Arzneimittel Ag | Protective container for containers made of fragile material |
| CN203107695U (en) * | 2013-01-31 | 2013-08-07 | 重庆莱美药业股份有限公司 | Sodium bicarbonate injection flexible package |
| CN204581947U (en) * | 2015-01-12 | 2015-08-26 | 华润双鹤药业股份有限公司 | A kind of two-fold valve transfusion bag with protection inner bag function |
| CN106275839B (en) * | 2016-09-22 | 2019-06-25 | 王小斌 | It is a kind of for rejecting the packaging structure of contaminated product |
-
2016
- 2016-09-30 CN CN201610868023.3A patent/CN106275839B/en active Active
- 2016-09-30 CN CN201621095911.8U patent/CN206691689U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275839A (en) * | 2016-09-22 | 2017-01-04 | 王小斌 | A kind of packaging structure for rejecting contaminated product |
| CN106275839B (en) * | 2016-09-22 | 2019-06-25 | 王小斌 | It is a kind of for rejecting the packaging structure of contaminated product |
| CN114867681A (en) * | 2019-11-07 | 2022-08-05 | 盼嘏篮株式会社 | Portable container with repeated filling structure |
Also Published As
| Publication number | Publication date |
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| CN106275839A (en) | 2017-01-04 |
| CN106275839B (en) | 2019-06-25 |
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