CN217945896U - Easy-to-draw seal gasket - Google Patents
Easy-to-draw seal gasket Download PDFInfo
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- CN217945896U CN217945896U CN202221334322.6U CN202221334322U CN217945896U CN 217945896 U CN217945896 U CN 217945896U CN 202221334322 U CN202221334322 U CN 202221334322U CN 217945896 U CN217945896 U CN 217945896U
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Abstract
The utility model discloses a seal gasket easy to draw, including gluing seal, aluminium foil layer and back sheet, its characterized in that: the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer, and the lower surface of the back lining layer is compounded on the upper surface of the aluminum foil layer through a first heat sealing adhesive layer; the back lining layer comprises a cover face, a lifting handle piece and a sealing pulling piece, wherein the lifting handle piece and the sealing pulling piece are positioned in the cover face, the root of the lifting handle piece is integrally connected with the front end part of the sealing pulling piece, part of the boundary of the sealing pulling piece is connected with the cover face through a tearing line, and a hollowed-out area which is convenient for fingers to pull the lifting handle piece is arranged on the cover face positioned on the periphery of the lifting handle piece. The easy-to-draw sealing gasket is convenient for uncovering and lifting the handle piece and opening an opening with a neat boundary.
Description
Technical Field
The utility model relates to a seal gasket, in particular to easy-to-draw seal gasket.
Background
With the introduction of new-generation flexible packaging equipment and casting equipment, the range of contents in packages is further expanded, liquid packaging bags such as jelly, fruit juice, yoghourt, fruit milk, soup and the like, and packaging bags such as puffed food, oatmeal and the like have higher transparency requirements, the requirements on packaging materials are correspondingly improved, the quality guarantee period is considered, and the heat sealing strength between the packaging materials and the opening of the container is also considered.
The prior packaging container comprises a plastic container, a paper container or an aluminum container, and the like, wherein the upper end of the container is provided with an opening, the opening edge is provided with a sealing edge, and the sealing edge can be thermally sealed with a layer of aluminum foil sealing sheet to enable the packaging container to be hermetically stored. When the aluminum foil sealing piece is torn, a nail or a tool is needed to scratch the aluminum foil sealing piece, so that the aluminum foil sealing piece is not sanitary and convenient. In addition, after the layer of aluminum foil sealing sheet is torn from the sealing edge of the container, an opening with a regular boundary is difficult to tear, powder and liquid in the packaging container are easy to scatter and fall when poured out, the powder and the liquid are easy to remain at the opening, and bacteria are easy to breed.
Disclosure of Invention
The utility model aims to solve the problem that a easy-to-draw seal gasket is provided, this kind of easy-to-draw seal gasket is convenient for take off the handle piece and mentions and open the orderly opening in a border.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a seal gasket easy to draw, includes adhesive seal layer, aluminium foil layer and back sheet, its characterized in that: the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer, and the lower surface of the back lining layer is compounded on the upper surface of the aluminum foil layer through a first heat sealing adhesive layer; the back lining layer comprises a cover face, a lifting handle piece and a sealing pulling piece, wherein the lifting handle piece and the sealing pulling piece are located in the cover face, the root of the lifting handle piece is integrally connected with the front end portion of the sealing pulling piece, part of the boundary of the sealing pulling piece is connected with the cover face through a tearing line, and a hollow area convenient for fingers to pull the lifting handle piece is arranged on the cover face located on the periphery of the lifting handle piece.
The adhesive sealing layer and the cover surface can be in various shapes such as round, oval, square and the like.
The shape of the sealing pull tab can be fan-shaped, round, oval and other shapes.
The shape of the handle sheet can be round, oval, fan-shaped, square and other shapes.
The shape of the hollow-out area can be round, oval, fan-shaped, square and other shapes. Generally, the shape of the hollow-out area is suitable for matching with the shape of the handle sheet.
The easy-to-draw sealing gasket is generally applied to plastic containers, paper containers or aluminum containers, the upper ends of the containers are provided with openings, the opening edges are provided with sealing edges, and the adhesive sealing layer of the easy-to-draw sealing gasket is adhered to the sealing edges. The aluminum foil layer plays a role in completely sealing and blocking light; the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer, and not only can the adhesive sealing layer play a role in protecting the aluminum foil layer, but also can play a role in strengthening the bonding between the easy-to-draw sealing gasket and the sealing edge of the container; the backing layer serves to protect the upper surface of the aluminum foil layer. The tearing line is formed on the cover surface in a stamping mode, when the handle sheet is pulled upwards, the handle sheet enables the sealing pull sheet to be torn along the tearing line, and the sealing pull sheet and the aluminum foil layer compounded below the sealing pull sheet are also torn together, so that an opening with a neat and smooth boundary is opened on the easy-to-pull sealing pull sheet.
As the preferred scheme of the utility model, the fretwork is regional to be located the anterior outside of handle piece. Through the arrangement, the size of the hollowed-out area is larger than that of the handle piece, and a space for picking up the handle piece is provided for fingers of a user.
As a preferable aspect of the present invention, the hollow area surrounds the periphery of the handle piece. Through this kind of setting for the size of fretwork area is greater than the size of handle piece, provides the space of picking up the handle piece for user's finger.
As the utility model discloses a preferred scheme, the quantity of tear line is two, and two tear lines set up respectively the both sides of sealed pulling-on piece, the outer boundary that the preceding tip of each tear line all from sealed pulling-on piece extended to the capping.
As the utility model discloses a preferred scheme, the quantity of tear line is one, and the tear line encircles in the periphery of sealing pulling-on piece, tear line self sealss the preceding tip one side of pulling-on piece extend to the opposite side of preceding tip.
As the utility model discloses a preferred scheme, the back sheet includes from bottom to top compound first PE rete, PE foaming piece, the printing rete in proper order together, with it is from the type oil reservoir to coat on the corresponding first PE rete lower surface in handle piece position, and first PE rete passes through first heat seal glue film is compound on the upper surface on aluminium foil layer. The release oil layer is also called an isolating layer, an anti-sticking layer and a silicon oil layer, and is an anti-sticking layer which can prevent the adhesion of the prepreg and can also protect the prepreg from being polluted. The lower surface of the handle sheet is coated with the release oil layer, so that the adhesion between the lower surface of the handle sheet and the first heat seal adhesive layer can be prevented, the strippability of the lower surface of the handle sheet on the first heat seal adhesive layer can be improved, and the lower surface of the handle sheet can be protected from being polluted.
When the back lining layer is produced, the first PE film layer is directly compounded on the lower surface of the PE foaming sheet, so that the lower surface of the PE foaming sheet can be protected from being polluted, corroded and scratched in the transportation, storage and use processes, and the original smooth and bright lower surface of the PE foaming sheet is protected; then coating a release oil layer on the lower surface of the handle sheet, and coating a first heat-seal adhesive layer on the upper surface of the aluminum foil layer to bond the lower surface of the handle sheet and the upper surface of the first heat-seal adhesive layer together through compounding, so that the lower surface of the handle sheet is compounded on the upper surface of the aluminum foil layer through the first heat-seal adhesive layer; and finally, compounding the printing film layer on the upper surface of the PE foaming sheet, wherein the printing film layer plays a role in bearing printing, and characters and/or patterns on the printing film layer are printed, so that the manufactured easy-to-draw sealing gasket has an identification function. If the food in the packaging container is not used up, the sealing pull piece is only required to be covered on the food outlet again, so that the opening of the packaging container can be conveniently resealed, and the shelf life of the food which is not used up in the packaging container can be prolonged.
As a further preferred scheme of the utility model, the lower surface of printing rete is in through the compound of third heat-seal glue film on the upper surface of PE foaming piece. The adhesion degree of the lower surface of the printing film layer and the upper surface of the PE foaming sheet can be improved through the adhesion of the third heat-seal adhesive layer.
As a further preferable aspect of the present invention, the backing layer further includes a second PE film layer, the second PE film layer is laminated on the upper surface of the PE foam sheet, and the lower surface of the printing film layer is laminated on the upper surface of the second PE film layer through a third heat sealing adhesive layer. The second PE film layer is directly compounded on the upper surface of the PE foaming sheet, so that the upper surface of the PE foaming sheet can be protected from being polluted, corroded and scratched in the processes of transportation, storage and use, and the original smooth and bright upper surface of the PE foaming sheet is protected.
As a further preferred scheme of the utility model, the printing rete is the PET membrane. The PET film has good transparency, luster, stiffness and size stability, and is suitable for secondary processing such as printing.
As a further preferred scheme of the utility model, be equipped with the impressed watermark layer from the lower surface of type oil reservoir. The embossing layer is formed by embossing a pattern layer on the lower surface of the release oil layer, so that the contact area between the lower surface of the handle piece and the first heat seal adhesive layer in heat seal is reduced, and the lower surface of the handle piece can be better separated from the first heat seal adhesive layer. The embossing layer can be uneven bumps or any other shape.
As the preferred scheme of the utility model, the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer through the second heat sealing glue layer. Through the arrangement, the second heat seal adhesive layer can play a role in reinforcing the bonding between the adhesive seal layer and the aluminum foil layer.
As the preferred scheme of the utility model, the adhesive sealing layer is PET membrane, PP membrane or PE membrane. The PET film has the advantages of high transparency, no toxicity, no odor, high tensile strength, good stiffness and good viscosity, is used in a normal temperature environment, has straight sideline and no adhesive residue, and can protect the lower surface of the aluminum foil layer. The PP film or the PE film has high transparency, and can protect the lower surface of the aluminum foil layer from being polluted, corroded and scratched in the processes of transportation, storage and use and protect the original smoothness and luster of the lower surface of the aluminum foil layer.
As the preferred proposal of the utility model, the handle sheet is provided with finger through holes. The fingers of the user can penetrate through the finger through holes, so that the user can tear the sealing pull piece forcefully.
The first heat-seal adhesive layer, the second heat-seal adhesive layer and the third heat-seal adhesive layer can adopt hot melt adhesives and the like.
Compared with the prior art, the utility model, have following advantage:
the utility model is provided with the hollow area which is convenient for fingers to pick up the handle piece on the cover surface at the periphery of the handle piece, so that a user can easily tear the handle piece by hands without tearing the whole easy-to-draw sealing gasket from the sealing edge of the opening of the packaging container, and can easily tear the sealing pulling piece and the corresponding aluminum foil layer only by pinching the handle piece by hands, thereby opening an opening with neat and smooth boundary on the easy-to-draw sealing gasket; when the easy-to-pull sealing pull piece is needed to be torn, other tools are not needed to pull the easy-to-pull sealing pull piece, and the easy-to-pull sealing pull piece is sanitary and convenient.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 4 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 5 of the present invention;
fig. 7 is a schematic structural diagram of embodiment 6 of the present invention;
fig. 8 is a schematic structural diagram of embodiment 7 of the present invention;
fig. 9 is a schematic structural diagram of embodiment 8 of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-2, the easy-to-draw sealing gasket in this embodiment includes an adhesive sealing layer 1, an aluminum foil layer 2 and a backing layer 3, wherein the adhesive sealing layer 1 is compounded on the lower surface of the aluminum foil layer 2, and the lower surface of the backing layer 3 is compounded on the upper surface of the aluminum foil layer 2 through a first heat-sealing adhesive layer 4; the backing layer 3 comprises a cover face 31, a handle sheet 32 and a sealing pull sheet 33, wherein the handle sheet 32 and the sealing pull sheet 33 are arranged in the cover face 31, the root part 321 of the handle sheet 32 is integrally connected with the front end part 331 of the sealing pull sheet 33, part of the boundary of the sealing pull sheet 33 is connected with the cover face 31 through a tearing line 5, and a hollowed-out area 34 which is convenient for fingers to pick up the handle sheet 32 is arranged on the cover face 31 at the periphery of the handle sheet 32.
The adhesive seal layer 1 and the lid surface 31 are both circular in shape. The sealing tab 33 is fan-shaped, the handle tab 32 is circular, and the hollow area 34 is fan-shaped.
A hollowed-out area 34 surrounds the perimeter of the handle panel 32. With this arrangement, the size of the hollowed-out area 34 is larger than the size of the handle piece 32, providing a space for a user's finger to pick up the handle piece 32.
The number of tear lines 5 is one, the tear lines 5 being arranged around the periphery of the sealing tab 33, the tear lines 5 extending from one side of the front end portion 331 of the sealing tab 33 to the other side of the front end portion 331.
The back lining layer 3 comprises a first PE film layer 35, a PE foaming sheet 36 and a printing film layer 37 which are sequentially compounded together from bottom to top, wherein a release oil layer 38 is coated on the lower surface of the first PE film layer 35 corresponding to the position of the handle sheet 32, and the first PE film layer 35 is compounded on the upper surface of the aluminum foil layer 2 through the first heat-seal glue layer 4. The release oil layer 38 is also called an isolation layer, an anti-sticking layer, and a silicone oil layer, and is an anti-sticking layer that prevents adhesion of the prepreg and protects the prepreg from contamination. The release oil layer 38 is coated on the lower surface of the handle sheet 32, so that the adhesion between the lower surface of the handle sheet 32 and the first heat-seal adhesive layer 4 can be prevented, the peelability of the lower surface of the handle sheet 32 on the first heat-seal adhesive layer 4 can be improved, and the lower surface of the handle sheet 32 can be protected from being polluted.
When the backing layer 3 is produced, the first PE film layer 35 is directly compounded on the lower surface of the PE foaming sheet 36, so that the lower surface of the PE foaming sheet 36 can be protected from being polluted, corroded and scratched in the processes of transportation, storage and use by the first PE film layer 35, and the original smooth and bright lower surface of the PE foaming sheet 36 is protected; then coating a release oil layer 38 on the lower surface of the handle sheet 32, coating a first heat-seal adhesive layer 4 on the upper surface of the aluminum foil layer 2, and bonding the lower surface of the handle sheet 32 and the upper surface of the first heat-seal adhesive layer 4 together through compounding, so that the lower surface of the handle sheet 32 is compounded on the upper surface of the aluminum foil layer 2 through the first heat-seal adhesive layer 4; and finally, compounding the printing film layer 37 on the upper surface of the PE foaming sheet 36, wherein the printing film layer 37 plays a role in bearing printing, and characters and/or patterns on the printing film layer 37 are printed, so that the manufactured easy-to-draw sealing gasket has an identification function. If the food in the packaging container is not used up, the sealing pull piece 33 only needs to be covered on the food outlet again, so that the opening of the packaging container is convenient to reseal, and the shelf life of the food which is not used up in the packaging container can be prolonged.
The lower surface of the printed film layer 37 is laminated on the upper surface of the PE foam sheet 36 by a third heat-seal adhesive layer 6. The adhesion of the lower surface of the printed film layer 37 to the upper surface of the PE foam sheet 36 can be improved by the adhesion of the third heat-seal adhesive layer 6.
The printed film layer 37 is a PET film. The PET film has good transparency, luster, stiffness and stable size, and is suitable for secondary processing such as printing and the like.
The adhesive sealing layer 1 is a PET film. Above-mentioned PET film has that the transparency is high, nontoxic tasteless, tensile strength is big, the deflection is good, viscidity is good, uses under normal atmospheric temperature environment, and the sideline is straight, the cull not, can protect the lower surface of aluminium foil layer 2.
The easy-to-draw sealing gasket is generally applied to plastic containers, paper containers or aluminum containers, the upper ends of the containers are provided with openings, the opening edges are provided with sealing edges, and the adhesive sealing layer 1 of the easy-to-draw sealing gasket is adhered to the sealing edges. The aluminum foil layer 2 plays a role of completely sealing and blocking light; the adhesive sealing layer 1 is compounded on the lower surface of the aluminum foil layer 2, and the adhesive sealing layer 1 not only can play a role in protecting the aluminum foil layer 2, but also can play a role in strengthening the bonding between the easy-to-draw sealing gasket and the sealing edge of the container; backing layer 3 serves to protect the upper surface of aluminum foil layer 2. The tearing line 5 is formed on the cover surface 31 in a stamping mode, when the handle sheet 32 is pulled upwards, the handle sheet 32 tears the sealing pull-tab 33 along the tearing line 5, and the sealing pull-tab 33 and the composite aluminum foil layer 2 below the sealing pull-tab 33 are torn together, so that an opening with a neat and smooth boundary is opened on the easy-to-pull sealing pull-tab.
Example 2
As shown in fig. 3, the easy-open sealing gasket of the present embodiment is different from embodiment 1 in that:
the sealing tab 33 is fan-shaped, the handle tab 32 is square-shaped, and the hollowed-out area 34 is square-shaped.
A hollowed-out area 34 is provided on the front outer side of the handle piece 32. With this arrangement, the size of the hollowed-out area 34 is larger than the size of the handle piece 32, providing space for a user's fingers to pick up the handle piece 32.
Example 3
As shown in fig. 4, the easy-open sealing gasket of the present embodiment is different from embodiment 1 in that:
an embossing layer 381 is arranged on the lower surface of the release oil layer 38. The embossed layer 381 is formed by embossing a pattern layer on the lower surface of the release oil layer 38, so as to reduce the contact area between the lower surface of the handle sheet 32 and the first heat-seal adhesive layer 4 during heat sealing, and the lower surface of the handle sheet 32 can be better separated from the first heat-seal adhesive layer 4. The embossed layer 381 may be an uneven bump, or may have any other shape.
Example 4
As shown in fig. 5, the pop-top seal gasket in this embodiment is different from embodiment 1 in that:
the backing layer 3 further comprises a second PE film layer 39, the second PE film layer 39 is laminated on the upper surface of the PE foam sheet 36, and the lower surface of the printed film layer 37 is laminated on the upper surface of the second PE film layer 39 through a third heat-seal adhesive layer 6. The second PE film layer 39 is directly compounded on the upper surface of the PE foam sheet 36, so that the second PE film layer 39 can protect the upper surface of the PE foam sheet 36 from contamination, corrosion and scratching during transportation, storage and use, and protect the original smoothness and luster of the upper surface of the PE foam sheet 36.
Example 5
As shown in fig. 6, the easy-open sealing gasket of the present embodiment is different from embodiment 1 in that:
the adhesive sealing layer 1 is compounded on the lower surface of the aluminum foil layer 2 through a second heat sealing adhesive layer 7. With this arrangement, the second heat-seal adhesive layer 7 can function to reinforce the adhesion of the adhesive layer 1 to the aluminum foil layer 2.
Example 6
As shown in fig. 7, the easy-open sealing gasket of the present embodiment is different from embodiment 1 in that:
the sealing tab 33 is circular, the handle tab 32 is circular, and the hollowed area 34 is circular. The handle sheet 32 is provided with finger through holes 322. The user's finger may be passed through the finger through hole 322 to facilitate the user's forceful tearing open the sealing tab 33.
Example 7
As shown in fig. 8, the easy-open sealing gasket of the present embodiment is different from embodiment 1 in that:
the sealing tab 33 is fan-shaped, the handle tab 32 is fan-shaped, and the hollowed-out area 34 is fan-shaped.
Example 8
As shown in fig. 9, the easy-open sealing gasket of this embodiment is different from embodiment 1 in that:
the number of the tear lines 5 is two, the two tear lines 5 are respectively arranged on two sides of the sealing pull tab 33, and each tear line 5 extends from the front end portion 331 of the sealing pull tab 33 to the outer boundary of the cap surface 31.
In addition, it should be noted that the names of the various parts of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structures, characteristics and principles of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a seal gasket easy to draw, includes adhesive seal layer, aluminium foil layer and back sheet, its characterized in that: the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer, and the lower surface of the backing layer is compounded on the upper surface of the aluminum foil layer through a first heat sealing adhesive layer; the back lining layer comprises a cover face, a lifting handle piece and a sealing pulling piece, wherein the lifting handle piece and the sealing pulling piece are located in the cover face, the root of the lifting handle piece is integrally connected with the front end portion of the sealing pulling piece, part of the boundary of the sealing pulling piece is connected with the cover face through a tearing line, and a hollow area convenient for fingers to pull the lifting handle piece is arranged on the cover face located on the periphery of the lifting handle piece.
2. A zip-top seal gasket according to claim 1, wherein: the hollow-out area is arranged on the outer side of the front part of the lifting handle piece; or the hollow-out area is surrounded on the periphery of the handle piece.
3. The easy open seal gasket of claim 1 wherein: the number of the tear lines is two, the two tear lines are respectively arranged on two sides of the sealing pull piece, and each tear line extends from the front end part of the sealing pull piece to the outer boundary of the cover surface; or the number of the tearing lines is one, the tearing lines are wound around the periphery of the sealing pull tab, and the tearing lines extend from one side of the front end part of the sealing pull tab to the other side of the front end part.
4. A zip-top seal gasket according to claim 1, wherein: the back lining layer comprises a first PE film layer, a PE foaming sheet and a printing film layer which are sequentially compounded from bottom to top, wherein a release oil layer is coated on the lower surface of the first PE film layer corresponding to the position of the handle sheet, and the first PE film layer is compounded on the upper surface of the aluminum foil layer through the first heat sealing adhesive layer.
5. The easy open seal gasket of claim 4 wherein: the lower surface of the printing film layer is compounded on the upper surface of the PE foaming sheet through a third heat sealing adhesive layer.
6. The easy open seal gasket of claim 5, wherein: the back lining layer further comprises a second PE film layer, the second PE film layer is compounded on the upper surface of the PE foaming sheet, and the lower surface of the printing film layer is compounded on the upper surface of the second PE film layer through a third heat-seal adhesive layer.
7. The easy open seal gasket of claim 4, wherein: the printing film layer is a PET film.
8. The easy open seal gasket of claim 4 wherein: and the lower surface of the release oil layer is provided with an embossing layer.
9. The easy open seal gasket of claim 1 wherein: the adhesive sealing layer is compounded on the lower surface of the aluminum foil layer through a second heat sealing adhesive layer; the adhesive sealing layer is a PET film, a PP film or a PE film.
10. A zip-top seal gasket according to claim 1, wherein: the handle sheet is provided with finger through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221334322.6U CN217945896U (en) | 2022-05-31 | 2022-05-31 | Easy-to-draw seal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221334322.6U CN217945896U (en) | 2022-05-31 | 2022-05-31 | Easy-to-draw seal gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217945896U true CN217945896U (en) | 2022-12-02 |
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ID=84217104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221334322.6U Active CN217945896U (en) | 2022-05-31 | 2022-05-31 | Easy-to-draw seal gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217945896U (en) |
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2022
- 2022-05-31 CN CN202221334322.6U patent/CN217945896U/en active Active
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