CN212291133U - Humidity control pad for sealing device - Google Patents
Humidity control pad for sealing device Download PDFInfo
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- CN212291133U CN212291133U CN202021955393.9U CN202021955393U CN212291133U CN 212291133 U CN212291133 U CN 212291133U CN 202021955393 U CN202021955393 U CN 202021955393U CN 212291133 U CN212291133 U CN 212291133U
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- reverse osmosis
- humidity
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Abstract
The utility model provides a humidifying pad for sealing device belongs to the humidifying agent field, and the humidifying pad sets up in sealing device for adjust the humidity in the sealing device, a serial communication port, include: from the top down pastes body membrane, humidifying piece, the first anti-complex film that prevents reverse osmosis, paper pad and the second of arranging in proper order and prevents reverse osmosis complex film, and wherein, pastes body membrane and has the gas permeability, can let steam permeate through, and the humidifying piece is used for absorbing and emits moisture in order to adjust humidity, and its area is less than the paper pad area, and first anti-reverse osmosis complex film and the second prevent reverse osmosis complex film and have the gas permeability for prevent that moisture from permeating paper pad. The pasting body film is a PE film or an SC film, the humidity control sheet and a part of the first reverse osmosis prevention composite film are covered in a plastic suction mode, the first reverse osmosis prevention composite film and the second reverse osmosis prevention composite film are of a layered structure and comprise reverse osmosis prevention layers and more than one breathable layer which are sequentially arranged.
Description
Technical Field
The utility model belongs to the humidifying agent field, concretely relates to humidifying pad for sealing device.
Background
The requirements for the relative humidity of the preservation environment, such as the preservation of food, the preservation of medicines and goods, are high, and a relatively stable humidity value is required. Currently, the humidity of the environment is mostly regulated and controlled by using the moisture absorption and release characteristics of certain materials, and the mode has the advantages of energy conservation, stable control, safety and the like, and is suitable for stable control of the humidity in a relatively closed small environment.
At present, most humidity control materials belong to the category of drying agents, mainly have a drying function, and can continuously absorb redundant water vapor in the environment. Desiccants are used in many food, commodity, and pharmaceutical industries. The desiccant is mostly granular in product form at present, and is packaged by a small air-permeable bag and placed at the bottom of a container for drying. However, the desiccant is difficult to dissipate heat, the position limitation also causes the problems that the precise humidity adjustment cannot be carried out on products with high humidity value requirements such as some medicines, and the like, the position reservation is needed for the desiccant, and meanwhile, the desiccant is easy to leak out in the form. Other humidity control forms include humidity control sheets, but most of the humidity control sheets have unsatisfactory humidity control capability due to problems such as air permeability of packaging materials.
In addition, a product having a film structure such as a humidity control sheet is often manufactured by a press method, but in the case of a layer structure containing a liquid, the liquid exudes due to the processing in this manner. Some processing and manufacturing methods also use a plastic suction method, but most of the current plastic suction methods are to punch holes on products, and the holes can damage the structure of the film to cause liquid in the film to seep out.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, a humidity control pad for a sealing device is provided, the utility model adopts the following technical scheme:
the utility model provides a humidifying pad for sealing device sets up in sealing device for adjust the humidity in the sealing device, a serial communication port, include: from the top down pastes body membrane, humidifying piece, the first anti-complex film that prevents reverse osmosis, paper pad and the second of arranging in proper order and prevents reverse osmosis complex film, and wherein, pastes body membrane and has the gas permeability, can let steam permeate through, and the humidifying piece is used for absorbing and emits moisture in order to adjust humidity, and its area is less than the paper pad area, and first anti-reverse osmosis complex film and the second prevent reverse osmosis complex film and have the gas permeability for prevent that moisture from permeating paper pad.
The utility model provides a humidifying pad for sealing device can also have such characteristic, and wherein, the adhesion body membrane is PE membrane or SC membrane, covers humidifying piece and the first partly of preventing the anti-infiltration complex film through the mode of plastic uptake.
The utility model provides a humidifying pad for sealing device can also have such characteristic, and wherein, first prevent that reverse osmosis complex film and second prevent that reverse osmosis complex film is laminated structure, including the ventilative layer more than preventing reverse osmosis layer and one deck of arranging in proper order, prevent that reverse osmosis layer is PE ventilated membrane or PET ventilated membrane, and ventilative layer is non-woven fabrics or paper.
The utility model provides a humidifying pad for sealing device can also have such characteristic, wherein, on the second prevent the adjacent surface with the paper pad of oozing the complex film, the printing has pattern or characters.
The utility model provides a humidifying pad for sealing device can also have such characteristic, and wherein, sealing device has the lid, and paper pad area is less than the area of the medial surface of lid, and the second prevents that the medial surface of anti-infiltration complex film and lid is sticky.
The utility model provides a humidifying pad for sealing device can also have such characteristic, and wherein, the medial surface phase-match of paper pad shape area and lid, paper pad embedding is in the lid.
Utility model with the functions and effects
According to the utility model discloses a humidifying pad for sealing device, humidifying pad set up in sealing device for humidity in the regulation sealing device, including from the top laminating membrane, humidifying piece, the first anti-reverse osmosis complex film, paper pad and the second of arranging in proper order prevents reverse osmosis complex film. Wherein, the skin membrane has the gas permeability, can let steam permeate through, and the humidifying piece can absorb and emit moisture, and first anti-reverse osmosis complex film and second are prevented reverse osmosis complex film and are had gas permeability and anti-reverse osmosis nature for place moisture infiltration paper pad. The air permeability of the skin film stretched by the plastic suction process is enhanced, so that the moisture absorption and release rate of the humidity-adjusting pad is increased, and the moisture absorption and release capacity of the humidity-adjusting sheet is ensured. The anti-reverse osmosis performance of the first anti-reverse osmosis composite film and the second anti-reverse osmosis composite film prevents the surface coated skin film from being tilted due to the fact that the paper pad is wetted. The humidity control cushion of this embodiment can set up in different positions of sealing device's inside in a flexible way, can carry out the humidity to some products that humidity value precision required is higher, also makes the humidity control cushion difficult to damage.
Drawings
FIG. 1 is a schematic structural view of a humidity control mat for a sealing device according to an embodiment of the present invention;
fig. 2 is a moisture absorption increment change diagram of the PP film, the PE film and the SC film before and after the plastic uptake.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples.
The embodiment of the utility model adopts the reverse osmosis prevention composite membrane which is a gas-permeable reverse osmosis prevention packing material structure of the published patent (patent publication number: CN 203427406U).
< example >
The present embodiment provides a humidity control pad for a sealing device, which is used for controlling the humidity inside the sealing device.
FIG. 1 is a schematic structural view of a humidity control mat for a sealing device according to an embodiment of the present invention.
As shown in fig. 1, the humidity control pad 100 for a sealing device of the present embodiment includes a skin film 1, a humidity control sheet 2, a first anti-reverse osmosis composite film 3, a paper pad 4, and a second anti-reverse osmosis composite film 5, which are arranged in this order from top to bottom.
Wherein, the first anti-reverse osmosis composite film 3, the paper pad 4 and the second anti-reverse osmosis composite film 5 form a bottom plate 10.
The shapes and areas of the first anti-reverse-osmosis composite membrane 3, the paper pad 4 and the second anti-reverse-osmosis composite membrane 5 are consistent, the area of the humidity control sheet 2 is smaller than that of the paper pad 4, the area of the adhesive membrane 1 is matched with the humidity control sheet 2 and the paper pad 4, and the adhesive membrane covers the humidity control sheet 2 and a part of the first anti-reverse-osmosis composite membrane 3.
The adhesive film 1 has air permeability, can allow water vapor to permeate, and has a slow release effect on liquid. The adhesive film 1 is used for carrying out adhesive packaging on the humidity-regulating sheet 2 in a heating and plastic-absorbing mode, so that the humidity-regulating sheet 2 is fixed on the bottom plate 10.
In this embodiment, the first adhesive film 1 is a PE (polyethylene) film. In other embodiments, an SC film (sodium ion PE film) or a PP film may be selected, and the skin film 1 with different thickness and different material may be selected according to the moisture absorption and desorption rate requirement of the user.
The humidity control sheet 2 is a composition for absorbing moisture or releasing moisture to control humidity, and the area of the humidity control sheet 2 is smaller than that of the paper pad 4.
In this embodiment, the diameter of the humidity control sheet 2 is 30 mm. In other embodiments, the thickness of the conditioning sheet may be varied according to the different moisture absorption rates required for different volumes of the sealing means; the formula and the diameter of the humidity conditioning agent for preparing the humidity conditioning sheet can be changed according to different humidity ranges.
The first reverse osmosis prevention composite film 3 is of a layered structure and comprises a reverse osmosis prevention layer and more than one breathable layer, wherein the reverse osmosis prevention layer is a PE breathable film or a PET breathable film, and the breathable layer is non-woven fabric or paper. The first anti-reverse osmosis composite film 3 has air permeability for preventing moisture in the humidifying sheet 2 from permeating the paper pad 4.
The paper pad 4 also has air permeability. In this embodiment, the paper pad 4 has the same area as the inner surface of the lid of the sealing device and is fitted into the lid. In other embodiments, the paper pad 4 may be smaller in size than the inside surface of the lid, and may be attached to the inside surface of the lid with an adhesive.
The second anti-reverse osmosis composite membrane 5 is of a laminated structure and comprises an anti-reverse osmosis layer and more than one breathable layer, wherein the anti-reverse osmosis layer is a PE breathable film or a PET breathable film, and the breathable layer is non-woven fabric or paper. The second anti-reverse osmosis composite film 5 and the first anti-reverse osmosis composite film 3 enable the tension of two surfaces of the bottom plate to be the same, so that the bottom plate is flat and can be subjected to plastic suction processing. The adjacent surface of the second anti-reverse osmosis composite film 5 and the paper pad 4 is printed with patterns or characters.
Experiment one:
the adhesive film 1 of the embodiment is absorbed on the humidity control sheet 2 by blister processing, and the air permeability of the adhesive film 1 is increased to improve the moisture absorption and release capacity of the humidity control sheet 100.
The experiment of this embodiment provides contrast experiment data and has compared the utility model discloses an adopt the humidifying of plastic uptake to fill up 100 and the humidifying ability of the humidifying article that does not adopt the plastic uptake. The method specifically comprises the following steps: a prototype humidity control sheet 2 with a diameter of 30mm and a humidity (RH) of 50% was taken, and three packaging structures were used to compare the moisture absorption and desorption rates. Three kinds of packing are A respectively, bottom plate + PE skin membrane is tensile (promptly the utility model discloses a humidifying pad), B gas permeability container bag (purchase gained), C.PE membrane bag.
The experimental steps are as follows: the three humidity-regulating tablets of 18 g are packaged and respectively placed in a 1000mL sealed box with a wireless temperature and humidity monitor, the initial humidity in the sealed box is balanced (RH is about 50%), and then 1 g of fiber drying agent is respectively placed in the sealed box to observe the humidity change.
The results are shown below:
TABLE 1 comparison of moisture absorption and desorption rates for three packaging configurations
As shown in table 1, in the humidity control pad 100 and the humidity control sheet packaged in the air-permeable paper bag of the present embodiment, after 7 days, the humidity change law and rate are similar, both the humidity in the first 3 days is reduced, and the humidity in the last 4 days is returned to the original 50%; the bag made of the skin PE film without plastic uptake processing can only slowly recover to the humidity of 23.63 percent after the humidity is reduced. The results demonstrated that the humidity control pad 100 of the present example and the humidity control sheet packed in the air-permeable paper bag had almost no difference in the moisture absorption and desorption rates, whereas the humidity control sheet of the skin-type PE film bag which had not been subjected to the plastic absorption processing had poor air permeability and could not balance the humidity in the box by desorption.
In addition, the drying agent and the three packaging structures are respectively weighed, and the moisture absorption increment of the drying agent and the moisture desorption decrement of the humidity adjusting sheet are observed.
The results are shown below:
TABLE 2 comparison of moisture content of humidity control sheet and moisture absorption of desiccant in three packaging configurations
| Weight difference | The utility model discloses structure | Ventilating paper bag | Skin PE film |
| Humidity control tablet (weightlessness, g) | 0.605 | 0.587 | 0.087 |
| Desiccant (weight gain, g) | 0.674 | 0.656 | 0.275 |
As shown in table 2, in the same sealed space, the weight gain of the desiccant is greater than the weight loss of the humidity control sheet, which indicates that the hasp box is not absolutely sealed, and the desiccant also absorbs the moisture in the external environment; the weight loss and the weight gain of the packaging structure, the humidity control sheet of the breathable paper bag and the drying agent of the embodiment are not greatly different and are about 0.6 g; the weight loss and weight gain of the humidity control sheet and the drying agent packaged by the conformable PE film are obviously smaller than those of the humidity control sheet and the drying agent packaged by the conformable PE film. The results prove that the humidity inside and outside the sealed box packaged by the PE film in the box can not be balanced by the moisture release because the moisture difference inside and outside the sealed box is large and the moisture absorption amount of the desiccant is far greater than the moisture release amount of the humidity control sheet, and the bag made of the PE film only can not be used for balancing the humidity inside the box.
In summary, experiments in this embodiment prove that the humidity control pad 100 of this embodiment has moisture absorption and moisture release capabilities comparable to or even superior to those of the existing products, but the air-permeable paper bag cannot be processed by using the blister process, and can only be made into the traditional bagged desiccant. The bag made of the conformable PE film alone cannot balance the humidity in the box by releasing moisture.
Experiment two:
the skin film 1 of the embodiment can be made of different materials with different air permeability, and the moisture absorption and release capacity of the humidity control sheet 100 is improved by using a plastic uptake process.
Experiment two of this example provides moisture permeability of different materials before and after blister stretching. Commonly used skin packaging films include: plastic films such as PVC (polyvinyl chloride), PET (polyester resin), PP (polypropylene), PE (polyethylene), and the like. Wherein, PVC contains chloride ions, which does not meet the environmental protection requirement, while PET is hard, and when the PET is attached to a wet and soft humidity control sheet, the humidity control sheet can deform. So the second experiment in this example is specifically: two types of materials, PP and PE, are selected for comparison test, and the PE thin film is divided into a common PE film and an SC film (sodium ion PE film). Three kinds of adhesive films, namely a pre-glued PP film with 8 silk thickness, a common PE film and an SC film, are selected for the experiment to carry out comparison test.
The experimental steps are as follows: bags were made with a film of 140 x 100mm open size and an equal amount of 9 grams of fibrous desiccant was placed in the bags and placed in a constant temperature and humidity cabinet at 25 c and 90% humidity and weighed every 24 hours until 15 days.
The results are shown below:
TABLE 3 air permeability (moisture absorption rate) (unit:%)
Fig. 2 is a graph showing the change in moisture absorption increase of the PP film, the PE film, and the SC film of the present example before and after the blister.
As shown in table 3 and fig. 2, the moisture absorptance before and after stretching of the PP film was 1.83% and 3.49%, respectively, both of which were less than 5%; the common PE film is 4.26% before stretching, and the moisture absorption rate after stretching is 10.38%; and the moisture absorption rates of the SC film after plastic suction and stretching are 14.3 percent and 16.28 percent respectively.
According to empirical values, if the moisture absorption rate is less than 5% in 15 days, the moisture permeability is not satisfied, and the result proves that the moisture permeability of the PP film before and after plastic uptake is not satisfied, while the moisture absorption rates of the PE film and the SC film after plastic uptake are far more than 5%, the requirements can be satisfied, and meanwhile, the moisture permeability of the SC film after plastic uptake is better. Therefore, among these three films, a PE film and an SC film after blister stretching can be used as the adherend film 1, and an SC film is preferable.
Experiment three:
the first anti-reverse osmosis composite membrane 3 and the second anti-reverse osmosis composite membrane 5 of the present embodiment have air permeability.
Experiment three of this example provides a comparison of whether or not a humidity control pad using a reverse osmosis resistant composite membrane was used. The method specifically comprises the following steps: a humidity-adjusting cushion prepared by the following steps is taken: uniformly arranging a plurality of humidity-regulating sheets 2 on the paper pad 4, adsorbing the adhesive film 1 on the surfaces of the humidity-regulating sheets 2 and the paper pad 4 in a plastic suction mode, and cutting parts of the humidity-regulating sheets 2 into preset shapes to obtain the humidity-regulating pad 100; the humidity control pads 100 of the present example were subjected to comparative experiments, i.e., comparative experiments with or without the reverse osmosis prevention composite membrane.
The experimental steps are as follows: the two humidity control cushions are respectively placed in a closed device with certain humidity and the same humidity, and are taken out for observation after a period of time.
The results are shown below: the humidity control mat 100 of the present embodiment does not significantly change before and after being placed in the sealing device, and the humidity control mat base plate without the anti-reverse osmosis composite film causes the skin film coated on the surface to be lifted due to moisture.
The results show that, because the humidity control sheet 2 of the present invention is a composition with a certain amount of moisture, when the anti-reverse osmosis composite membrane is not used, the bottom plate will be affected with moisture to make the skin membrane covered on the surface to tilt, even fall off. However, if an airtight film is used, the process of skin blistering (vacuum pumping) cannot be completed, and the moisture absorbing and releasing speed of the product is affected.
In addition, experiment three of this example also provides an experiment using only one anti-reverse osmosis composite membrane. The experiment step is to cover the anti-reverse osmosis composite film on one side of the paper pad 4, and the experiment result shows that when only one side of the paper pad 4 is covered with the film, the bottom plate is bent and unsmooth due to different tensions of the two sides, and the next plastic uptake process cannot be carried out.
To sum up, the two sides of the paper pad 4 in the embodiment of the present invention are both covered with the anti-reverse osmosis covering film.
Examples effects and effects
The humidity control pad for the sealing device is arranged in the sealing device and used for adjusting the humidity in the sealing device, and comprises an adhesive film, a humidity control sheet, a first anti-reverse-osmosis composite film, a paper pad and a second anti-reverse-osmosis composite film which are sequentially arranged from top to bottom. Wherein, the skin membrane has the gas permeability, can let steam permeate through, and the humidifying piece can absorb and emit moisture, and first anti-reverse osmosis complex film and second are prevented reverse osmosis complex film and are had gas permeability and anti-reverse osmosis nature for place moisture infiltration paper pad. The air permeability of the adhesive film enables the moisture absorption rate of the humidity control pad to be increased, and meanwhile, the moisture absorption and release capacity of the humidity control sheet is guaranteed. The anti-reverse osmosis performance of the first anti-reverse osmosis composite film and the second anti-reverse osmosis composite film prevents the surface coated skin film from being tilted due to the fact that the paper pad is wetted. The humidity control cushion of the embodiment can be flexibly arranged at different positions in the sealing device, and can regulate humidity of some products with high humidity value precision requirements, so that the humidity control cushion is not easy to damage and lose effectiveness.
Further, the skin membrane of humidifying pad for sealing device of this embodiment adopts PE skin membrane or SC membrane, can obtain through the contrast experiment, and the moisture absorption rate of the drier that uses these two kinds of skin membranes has all exceeded empirical value, and the moisture absorption rate after the drawing is showing the improvement more, in addition, can also be according to user's thickness and the material to the different demands of moisture absorption rate regulation skin membrane, make the utility model discloses a humidifying pad uses more extensively. In addition, the skin film of the embodiment is adsorbed on the debugging sheet by a plastic uptake method. Since each layer of the humidity control pad in this embodiment is air-permeable, the blister processing can be performed without punching. The vacuum forming method heats and stretches the adhesive film, so that the aperture of the adhesive film is increased, the air permeability of the adhesive film is improved, and the moisture absorption and release rates of the humidity control pad are increased. Meanwhile, the liquid in the humidity control sheet can be prevented from seeping out in the processing process by plastic suction processing.
Further, the first anti-reverse osmosis composite membrane and the second anti-reverse osmosis composite membrane of the humidity control pad for the sealing device of the embodiment are of a layered structure and comprise the anti-reverse osmosis layer and the air-permeable layer with more than one layer, which are sequentially arranged, so that the first anti-reverse osmosis composite membrane and the second anti-reverse osmosis composite membrane have air permeability and can prevent moisture from permeating. In addition, patterns or characters can be printed on the adjacent surface of the second anti-reverse-osmosis composite film and the paper pad, so that a user can print labels, trademarks and the like according to requirements.
Further, the shape of the paper pad of the humidity control pad for a sealing device of the present embodiment can be matched with the lid of the sealing device, and the paper pad can be fitted or bonded to the inner wall of the lid by using an adhesive, so that the humidity control pad of the present embodiment can be applied more flexibly.
The above embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.
In the present embodiment, the humidity control pad 100 is provided inside the cover of the sealing device so as to match the shape of the inside of the cover, but in other embodiments, the humidity control pad 100 may be provided on the inner wall of the device or at another position, and the shape and area thereof may be changed according to the shape and area.
Claims (6)
1. A humidity control mat for a sealing device, which is provided in a sealing device and is used for controlling the humidity in the sealing device, characterized by comprising:
a pasting film, a humidity adjusting sheet, a first anti-reverse osmosis composite film, a paper pad and a second anti-reverse osmosis composite film which are arranged from top to bottom in sequence,
wherein the adhesive film has air permeability and can allow water vapor to permeate through,
the humidity regulating sheet is used for absorbing and releasing water to regulate humidity, the area of the humidity regulating sheet is smaller than that of the paper pad,
the first and second reverse osmosis prevention composite films have air permeability for preventing moisture from permeating into the paper mat.
2. The humidity control mat for a sealing device according to claim 1, wherein:
the sticker film is a PE film or an SC film, and covers the humidity control sheet and a part of the first anti-reverse osmosis composite film in a plastic suction mode.
3. The humidity control mat for a sealing device according to claim 1, wherein:
wherein the first reverse osmosis prevention composite membrane and the second reverse osmosis prevention composite membrane are of a multilayer structure and comprise reverse osmosis prevention layers and more than one breathable layer which are sequentially arranged,
the anti-reverse osmosis layer is a PE breathable film or a PET breathable film,
the breathable layer is made of non-woven fabric or paper.
4. The humidity control mat for a sealing device according to claim 1, wherein:
and patterns or characters are printed on the adjacent surface of the second anti-reverse osmosis composite film and the paper pad.
5. The humidity control mat for a sealing device according to claim 1, wherein:
wherein the sealing device is provided with a cover,
the area of the paper pad is smaller than that of the inner side surface of the cover,
the second anti-reverse osmosis composite membrane is glued to the inner side of the lid.
6. The humidity control mat for a sealing device according to claim 5, wherein:
the shape and the area of the paper pad are matched with the inner side face of the cover, and the paper pad is embedded in the cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021955393.9U CN212291133U (en) | 2020-09-09 | 2020-09-09 | Humidity control pad for sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021955393.9U CN212291133U (en) | 2020-09-09 | 2020-09-09 | Humidity control pad for sealing device |
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| Publication Number | Publication Date |
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| CN212291133U true CN212291133U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021955393.9U Active CN212291133U (en) | 2020-09-09 | 2020-09-09 | Humidity control pad for sealing device |
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| CN (1) | CN212291133U (en) |
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- 2020-09-09 CN CN202021955393.9U patent/CN212291133U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 202156 building 12, No. 78, Binjiang Road, Xinhe Town, Chongming District, Shanghai Patentee after: Shanghai Hengyuan polymer material Co.,Ltd. Address before: Room 267, zone Q, No.2, Lane 921, Xinshen Road, Xinhe Town, Chongming District, Shanghai 202150 (Shanghai Fusheng Economic Development Zone) Patentee before: SHANGHAI HENGYUAN MACROMOLECULAR MATERIALS Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Humidification pad for sealing device Effective date of registration: 20221116 Granted publication date: 20210105 Pledgee: Industrial Bank Co.,Ltd. Shanghai Hongkou sub branch Pledgor: Shanghai Hengyuan polymer material Co.,Ltd. Registration number: Y2022310000326 |