CN209650925U - A kind of dedicated breathable sealing film of vacuum freeze drying - Google Patents
A kind of dedicated breathable sealing film of vacuum freeze drying Download PDFInfo
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- CN209650925U CN209650925U CN201821924801.7U CN201821924801U CN209650925U CN 209650925 U CN209650925 U CN 209650925U CN 201821924801 U CN201821924801 U CN 201821924801U CN 209650925 U CN209650925 U CN 209650925U
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Abstract
The utility model provides the parts such as a kind of dedicated breathable sealing film of vacuum freeze drying, including bottom cover film, isolation film, pressure sensitive adhesive, self-styled film strips.Wherein, bottom cover film is located at the bottom, and border circular areas placed in the middle is uniformly distributed Spurs aperture, isolation film is located at bottom cover film upper layer, and Spurs aperture distributed areas are completely covered, and pressure sensitive adhesive is located at isolation film upper layer, it is bonded with isolation film, self-styled film strips breakpoint formula hot pressing is together in bottom cover film outer rim.The utility model is covered at vessel port when in use, and self-styled film strips are torn along breakpoint, is wound on chamber wall after being stretched to appropriate length.The utility model can effectively prevent phenomena such as splashing out before sample pre-freeze, after pre-freeze, take pressure sensitive adhesive off, expose aperture on bottom cover film, sample powder flies out with vapor when not only can effectively prevent freeze-drying, but also can guarantee fine air permeability.Its structure is simple, and low manufacture cost is easy to use.
Description
Technical field
The utility model belongs to small-size laboratory articles field, is related to a kind of dedicated breathable sealing film of vacuum freeze drying,
More particularly, to dedicated breathable sealing film of a kind of vacuum freeze drying and preparation method thereof, it both can guarantee that vacuum freeze drying operated
In the process to the protection of sample, and it is able to achieve gas permeability.
Background technique
The principle of vacuum freeze drying is: under the conditions of low-temp low-pressure, making the water sublimed freezed in sample and sloughs.In
Under low-temp low-pressure, various physical-chemical reactions can not carry out mostly.Advantage of the vacuum freeze drying relative to other drying means
Be: being mixed into sample without other impurity in drying process, guarantee sample original ingredient and active constituent and its structure it is unaffected.
The common vacuum freeze drying process in laboratory at present are as follows: substance to be dried is placed in open-top receptacle, such as glass
Or plastic culture dish, beaker etc.；Upper one layer of preservative film or other species thin films are covered in open-top receptacle opening, to prevent vacuum
Fluid sample splashes out before being freeze-dried, powder sample flies out in vacuum freeze drying, is put into refrigerator and carries out pre-freeze；Pre-freeze terminates
Afterwards, the acanthopore on preservative film or other species thin films guarantees gas permeability；Be put into vacuum freeze drier start to carry out sample it is dry
It is dry.But the acanthopore behavior after pre-freeze to preservative film or other species thin films, it will the pre-freeze effect of sample is influenced, and
And it also will affect the normalization of laboratory vacuum freeze-drying operation behavior.
Applicant devises a kind of dedicated breathable sealing film of vacuum freeze drying, can both ensure against vacuum freeze drying
Phenomena such as preceding fluid sample splashes out, powder sample flies out in vacuum freeze drying, and can guarantee the gas permeability of sample.
Summary of the invention
The purpose of this utility model is to provide a kind of dedicated breathable sealing film of vacuum freeze drying, reaching both be can guarantee very
The purpose of gas permeability is able to achieve during vacuum freecing-dry to the protection of sample, again.The utility model production is simple, cost compared with
It is low, easy to use, and there is progradation to the operation of standardized experiment room vacuum freeze drying.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of dedicated breathable sealing film of vacuum freeze drying, it is characterised in that: including bottom cover film (1), Spurs aperture
(2), isolation film (3), pressure sensitive adhesive (4), self-styled film strips (5), be multilayer superimposition structure at breakpoint (6)；Bottom cover film (1)
Positioned at the bottom, border circular areas placed in the middle is uniformly distributed Spurs aperture (2)；Isolation film (3) is located at bottom cover film (1) upper layer, complete
All standing Spurs aperture (2) distributed areas；Pressure sensitive adhesive (4) is located at isolation film (3) upper layer, bonds with isolation film (3)；From sealer
Band (5) breakpoint formula hot pressing together in bottom cover film (1) outer rim, self-styled film strips (5) side and with it is equal at bottom cover film (1) outer rim
For (6) at breakpoint；The size and ratio of each component part can be adjusted according to the container that vacuum freeze drying uses.
Preferably, the bottom cover film (1), isolation film (3) and pressure sensitive adhesive (4) use polythene material；It is described not
Dry glue pastes and is coated with adhesive sticker in (4) inner circular region, and oval protrusion is non-adhesive region；The self-styled film strips (5) use
Thermoplasticity self-sealing film material.
Preferably, the equally distributed Spurs aperture (2) of the bottom cover film (1) border circular areas placed in the middle, aperture exists
Between 0.1mm~1mm, small number of perforations is between 5~30.
The beneficial effects of the utility model are as follows:
The utility model devises a kind of dedicated breathable sealing of vacuum freeze drying according to laboratory routine operation demand
Film.Spurs aperture on the bottom cover film of the utility model and the pressure sensitive adhesive covered thereon design, take off in pressure sensitive adhesive
Certain protective effect is played to sample before lower, after pressure sensitive adhesive is taken off, ensure that the gas permeability of sample to be dried
While can prevent sample powder from flying out with vapor again；The design of isolation film ensure that and produce during pressure sensitive adhesive is taken off
Destruction of the raw role of tear to Spurs aperture on bottom cover film；The edge of self-styled film strips and bottom cover film uses
The design of breakpoint formula hot pressing, can be used to guarantee the utility model be not used before integrality and be easy to use when tear,
It is self-styled to realize；The whole book layer of the utility model designs, placed between two one layer of peeling paper ensure that it is practical
Novel high-volume storage.
Detailed description of the invention
Attached drawing described herein constitutes the present utility model application to provide a further understanding of the present invention
A part, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute practical new to this
The improper restriction of type.
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model plan view.
In figure: 1. bottom cover films；2. Spurs aperture；3. isolation film；4. pressure sensitive adhesive；5. self-styled film strips；6. at breakpoint.
Fig. 2 is utility model each section exploded view.
In figure: 1. bottom cover films；2. Spurs aperture；3. isolation film；4. pressure sensitive adhesive；5. self-styled film strips；6. at breakpoint.
Fig. 3 is the utility model and culture dish application drawing.
In figure: 5. self-styled film strips；7. container.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the utility model will be further explained, and example is served only for explaining
The utility model is not intended to limit the scope of the utility model.
The embodiments of the present invention, as shown in Figure 1, Figure 2 and Figure 3, the dedicated ventilated membrane of the vacuum freeze drying includes
Bottom cover film (1), isolation film (3), pressure sensitive adhesive (4), self-styled film strips (5), is multilayer at breakpoint (6) at Spurs aperture (2)
Superimposition structure；Bottom cover film (1) is located at the bottom, and border circular areas placed in the middle is uniformly distributed Spurs aperture (2)；Isolation film (3) position
In bottom cover film (1) upper layer, Spurs aperture (2) distributed areas are completely covered；Pressure sensitive adhesive (4) is located at isolation film (3) upper layer,
It is bonded with isolation film (3)；Self-styled film strips (5) breakpoint formula hot pressing together in bottom cover film (1) outer rim, self-styled film strips (5) side and
Be (6) at breakpoint at bottom cover film (1) outer rim；The size and ratio of each component part can make according to vacuum freeze drying
Container and be adjusted.
In use, the utility model lower layer to be covered in the opening for being placed with the container (7) to vacuum freeze drying substance
Place；By self-styled film strips (5), along breakpoint, (6) are torn to appropriate length, are fixed self-styled film strips (5) one end, are pullled on one side self-styled
Film strips (5), edge container (7) outer wall winding, complete the fixation to the utility model on container (7), and put it into ice
Case pre-freeze；After completing pre-freeze, is taken out from refrigerator, after taking pressure sensitive adhesive (4) and isolation film (3) off, be put into vacuum freeze drier
Carry out the drying of sample.
The foregoing is merely the preferable examples of the utility model, but the utility model is not limited to the above embodiment, all
Modification, improvement and equivalent replacement made within spirit of the present utility model and principle etc., should belong to the utility model
Protection scope.
Claims (3)
1. a kind of dedicated breathable sealing film of vacuum freeze drying, it is characterised in that: including bottom cover film (1), Spurs aperture
(2), isolation film (3), pressure sensitive adhesive (4), self-styled film strips (5), be multilayer superimposition structure at breakpoint (6)；Bottom cover film (1)
Positioned at the bottom, border circular areas placed in the middle is uniformly distributed Spurs aperture (2)；Isolation film (3) is located at bottom cover film (1) upper layer, complete
All standing Spurs aperture (2) distributed areas；Pressure sensitive adhesive (4) is located at isolation film (3) upper layer, bonds with isolation film (3)；From sealer
Band (5) breakpoint formula hot pressing together in bottom cover film (1) outer rim, self-styled film strips (5) side and with it is equal at bottom cover film (1) outer rim
For (6) at breakpoint；The size and ratio of each component part can be adjusted according to the container that vacuum freeze drying uses.
2. the dedicated breathable sealing film of a kind of vacuum freeze drying according to claim 1, which is characterized in that the bottom covers
Epiphragma (1), isolation film (3) and pressure sensitive adhesive (4) use polythene material；It is applied in pressure sensitive adhesive (4) the inner circular region
Cloth adhesive sticker, and oval protrusion is non-adhesive region；The self-styled film strips (5) use thermoplasticity self-sealing film material.
3. the dedicated breathable sealing film of a kind of vacuum freeze drying according to claim 1, which is characterized in that the bottom covers
Epiphragma (1) the equally distributed Spurs aperture (2) of border circular areas placed in the middle, aperture between 0.1mm~1mm, small number of perforations 5~
Between 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821924801.7U CN209650925U (en) | 2018-11-15 | 2018-11-15 | A kind of dedicated breathable sealing film of vacuum freeze drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821924801.7U CN209650925U (en) | 2018-11-15 | 2018-11-15 | A kind of dedicated breathable sealing film of vacuum freeze drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209650925U true CN209650925U (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821924801.7U Active CN209650925U (en) | 2018-11-15 | 2018-11-15 | A kind of dedicated breathable sealing film of vacuum freeze drying |
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| Country | Link |
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| CN (1) | CN209650925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102736A (en) * | 2021-11-13 | 2022-03-01 | 严德雪 | Packaging film processing technology |
-
2018
- 2018-11-15 CN CN201821924801.7U patent/CN209650925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102736A (en) * | 2021-11-13 | 2022-03-01 | 严德雪 | Packaging film processing technology |
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