CN217951204U - Full-tearing type easy-to-draw sealing gasket - Google Patents
Full-tearing type easy-to-draw sealing gasket Download PDFInfo
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- CN217951204U CN217951204U CN202221335195.1U CN202221335195U CN217951204U CN 217951204 U CN217951204 U CN 217951204U CN 202221335195 U CN202221335195 U CN 202221335195U CN 217951204 U CN217951204 U CN 217951204U
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Abstract
The utility model discloses a tear type easy-to-draw seal gasket entirely, including gluing seal coat, 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 the first heat sealing adhesive layer; the back lining layer comprises a back lining ring, a handle part and an arc cutting line, the handle part is positioned in the back lining ring, the root of the handle part is integrally connected with the inner side edge of the back lining ring, the arc cutting line is arranged on the back lining ring, the arc cutting line outwards extends along the outer side edge of the root of the handle part, and the arc cutting line extends from the inner side edge of the back lining ring to the outer side edge of the back lining ring; the lower surface of the handle part is coated with a release oil layer. The full-tearing type easy-to-pull sealing gasket can be torn off from the opening of the packaging container completely, bacteria are not easy to breed, and the use is safe and sanitary.
Description
Technical Field
The utility model relates to a seal gasket, in particular to tear type easy-to-draw seal gasket entirely.
Background
With the introduction of a new generation of flexible packaging equipment and casting equipment, the range of the contents in the package is further expanded, the transparency requirements of 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 are higher, the requirements on packaging materials are correspondingly improved, the quality guarantee period and the heat sealing strength of the packaging materials and the opening of the container are considered, and the convenience in use and the tearability of consumers are 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 sealing gasket to enable the packaging container to be stored in a sealing way. However, the lower surface of this layer of seal gasket bonds too tightly with the sealed border of container for remain easily on the sealed border of container has the piece of seal gasket, if the packaging container is used for holding food, food is pouring out the back, and food remains easily in the piece that the container sealed the border, can lead to the opening of container to breed the bacterium easily, influences food safety and health.
Disclosure of Invention
The utility model aims to solve the problem that a tear type easy-to-draw seal gasket entirely is provided, this kind tears type easy-to-draw seal gasket entirely and can tear completely from packaging container's opening, is difficult for breeding the bacterium, and is safe in utilization health.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a tear type easy-to-draw seal gasket entirely, includes glues seal coat, 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 back lining ring, a handle part and an arc cutting line, the handle part is positioned in the back lining ring, the root of the handle part is integrally connected with the inner side edge of the back lining ring, the arc cutting line is arranged on the back lining ring, the arc cutting line outwards extends along the outer side edge of the root of the handle part, and the arc cutting line extends from the inner side edge of the back lining ring to the outer side edge of the back lining ring; the lower surface of the handle part is coated with a release oil layer.
The shape of the adhesive sealing layer can be round, oval, square and other shapes.
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 coating at the handle portion is from the type oil reservoir, can prevent the adhesion of the lower surface of handle portion and first heat seal glue film, improves handle portion strippability on first heat seal glue film, also can protect the lower surface of handle portion not to receive the pollution simultaneously.
The full-tearing type 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, the adhesive sealing layers of the full-tearing type easy-to-draw sealing gasket are bonded on the sealing edges, the root of the handle part is integrally connected with the inner side edge of the back lining ring, the back lining ring is cut off by the arc cutting line, when a user holds the handle part with hands, the handle part tears the aluminum foil layer along the arc cutting line with slight force, and the aluminum foil layer and the adhesive sealing layer on the lower surface of the aluminum foil layer are torn off from the sealing edges of the containers together.
Above-mentioned aluminium foil layer plays the supporting role, glues the effect that the seal edge bonded that the seal layer played gasket and container, and the back sheet plays the effect of protection aluminium foil layer upper surface. Above-mentioned complex force between bonding seal and the aluminium foil layer is greater than bonding force between bonding seal and the container sealing border, tears through the handle and draws to tear the bonding seal completely from the container sealing border and leave for bonding on the container sealing border can not remain in the bonding seal, is difficult for breeding the bacterium, uses safety and sanitation.
As the 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 handle part and the first heat sealing adhesive layer is reduced during heat sealing, and the handle part can be better separated from the first heat sealing 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 adhesive 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 utility model discloses a preferred scheme, the back sheet includes PE foaming piece, third heat seal glue film, the printing rete that sets gradually from bottom to top, first heat seal glue film coating is on the upper surface of aluminium foil layer, and the lower surface of PE foaming piece is through the compound upper surface on aluminium foil layer of first heat seal glue film. The third heat-seal adhesive layer can adopt hot melt adhesive and the like. The lower surface of the printing film layer is compounded on the upper surface of the PE foaming sheet through the third heat seal glue layer, the PE foaming sheet plays a supporting role, the printing film layer plays a role in bearing printing, and characters and/or patterns on the printing film layer enable the full-tear-off type easy-to-draw sealing gasket to have an identification function.
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 the preferred scheme of the utility model, it is PET membrane, PP membrane or PE membrane to glue the seal coat. 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 on aluminium 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 scheme of the utility model, be equipped with at least one bonding point on the arc cutting line. By this arrangement, the backing loops severed by the arcuate severance lines can be effectively joined end to end so that the arcuate severance lines with the adhesive points are also susceptible to tearing.
The first heat-seal adhesive layer and the second 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 discloses a combined force between adhesive seal and the aluminium foil layer is greater than adhesive seal and the container and seals the adhesion force between the border, tears through the handle and draws can tear the adhesive seal completely from the container seal border and leave for the adhesive seal can not remain to bond on the container seal border, is difficult for breeding the bacterium, uses safety and sanitation.
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.
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 full-tear easy-to-draw sealing gasket in this embodiment includes a sealing layer 1, an aluminum foil layer 2, and a backing layer 3, where the 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 backing ring 31, a handle part 32 and an arc-shaped cutting line 33, wherein the handle part 32 is positioned in the backing ring 31, a root part 321 of the handle part 32 is integrally connected with the inner side edge of the backing ring 31, the arc-shaped cutting line 33 is arranged on the backing ring 31, the arc-shaped cutting line 33 extends outwards along the outer side edge of the root part 321 of the handle part 32, and the arc-shaped cutting line 33 extends from the inner side edge 311 of the backing ring 31 to the outer side edge 312 of the backing ring 31; the lower surface of the handle portion 32 is coated with a release oil layer 34.
The shape of the adhesive layer 1 may be various shapes such as a circle, an ellipse, and a square.
The first heat-seal adhesive layer 4 can be made of hot melt adhesive or the like.
Above-mentioned aluminium foil layer 2 plays supporting role, glues seal 1 and plays the effect that the gasket and the seal border of container bonded, and back sheet 3 plays the effect of 2 upper surfaces of protection aluminium foil layer. Above-mentioned complex force of gluing between seal 1 and the aluminium foil layer 2 is greater than the adhesion stress of gluing between seal 1 and the container sealing edge, tears through handle portion 32 and draws to tear completely to leave from the edge of sealing of container with gluing seal 1 for glue seal 1 can not remain and bond on the edge of sealing of container, is difficult for breeding the bacterium, uses safety and sanitation.
The back lining layer 3 comprises a PE foaming sheet 35, a third heat-seal adhesive layer 36 and a printing film layer 37 which are sequentially arranged from bottom to top, the first heat-seal adhesive layer 4 is coated on the upper surface of the aluminum foil layer 2, and the lower surface of the PE foaming sheet 35 is compounded on the upper surface of the aluminum foil layer 2 through the first heat-seal adhesive layer 4. The third heat-sealing adhesive layer 36 can be made of hot melt adhesive or the like. The lower surface of the printing film layer 37 is compounded on the upper surface of the PE foaming sheet 35 through the third heat-seal adhesive layer 36, the PE foaming sheet 35 plays a supporting role, 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 full-tearing-off type easy-to-draw sealing gasket has an identification function.
The printed film layer 37 is a PET film. The PET film has good transparency, luster, stiffness and size stability, and is suitable for secondary processing such as printing.
The adhesive sealing layer 1 is a PET film. 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 2.
Two bonding points 331 are provided on the arcuate cut line 33. By this arrangement, the backing ring 31 severed by the arcuate severing line 33 can be effectively joined end to end so that the arcuate severing line 33 with the adhesive bond 331 is likewise susceptible to tearing.
The release oil layer 34 is also called an isolation layer, an anti-sticking layer, and a silicon oil layer, and is an anti-sticking layer that can prevent the adhesion of the prepreg and protect the prepreg from contamination. The release oil layer 34 is coated on the lower surface of the handle part 32, so that the adhesion between the lower surface of the handle part 32 and the first heat-seal adhesive layer 4 can be prevented, the peelability of the handle part 32 on the first heat-seal adhesive layer 4 can be improved, and the lower surface of the handle part 32 can be protected from being polluted.
The fully-torn 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, the adhesive sealing layer 1 of the fully-torn easy-to-draw sealing gasket is bonded on the sealing edges, the root of the handle part 32 is integrally connected with the inner side edge of the back lining ring 31, the arc cutting line 33 cuts off the back lining ring 31, when a user holds the handle part 32 with hands, the handle part 32 tears the aluminum foil layer 2 along the arc cutting line 33 with slight force, and the aluminum foil layer 2 and the adhesive sealing layer 1 on the lower surface of the aluminum foil layer 2 are torn off from the sealing edges of the containers completely.
Example 2
As shown in fig. 3, the easy-open seal gasket of the full tear-off type in this embodiment is different from that in 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 5. With this arrangement, the second heat-seal adhesive layer 5 can function to reinforce the adhesion of the adhesive layer 1 to the aluminum foil layer 2. The second heat-seal adhesive 2 layer can adopt hot melt adhesive and the like.
Example 3
As shown in fig. 4, the difference between the tear-off easy open seal gasket of this embodiment and embodiment 1 is:
an embossed layer 38 is provided on the lower surface of the release oil layer 34. The embossed layer 38 is formed by embossing a pattern layer on the lower surface of the release oil layer 34 to reduce the contact area between the handle portion 32 and the first heat-sealing adhesive layer 4 during heat sealing, so that the handle portion 32 can be better separated from the first heat-sealing adhesive layer 4. The embossed layer 38 may be an uneven bump or any other shape.
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 (7)
1. The utility model provides a tear type easy-to-draw seal gasket entirely, includes glues seal coat, 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 the first heat sealing adhesive layer; the back lining layer comprises a back lining ring, a handle part and an arc-shaped cutting line, the handle part is positioned in the back lining ring, the root of the handle part is integrally connected with the inner side edge of the back lining ring, the arc-shaped cutting line is arranged on the back lining ring, the arc-shaped cutting line extends outwards along the outer side edge of the root of the handle part, and the arc-shaped cutting line extends from the inner side edge of the back lining ring to the outer side edge of the back lining ring; the lower surface coating of handle portion has from the type oil reservoir.
2. The full tear-off easy open seal gasket of claim 1, wherein: and the lower surface of the release oil layer is provided with an embossing layer.
3. The easy-open seal gasket of full tear-off type 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.
4. The easy-open seal gasket of full tear-off type of claim 1, wherein: the back lining layer comprises a PE foaming sheet, a third heat-seal adhesive layer and a printing film layer, wherein the PE foaming sheet, the third heat-seal adhesive layer and the printing film layer are sequentially arranged from bottom to top, the first heat-seal adhesive layer is coated on the upper surface of the aluminum foil layer, and the lower surface of the PE foaming sheet is compounded on the upper surface of the aluminum foil layer through the first heat-seal adhesive layer.
5. The easy-open seal gasket of full tear-off type of claim 4, wherein: the printing film layer is a PET film.
6. The easy-open seal gasket of full tear-off type of claim 1, wherein: the adhesive sealing layer is a PET film, a PP film or a PE film.
7. The easy-open seal gasket of full tear-off type of claim 1, wherein: and at least one bonding point is arranged on the arc-shaped cutting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221335195.1U CN217951204U (en) | 2022-05-31 | 2022-05-31 | Full-tearing type easy-to-draw sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221335195.1U CN217951204U (en) | 2022-05-31 | 2022-05-31 | Full-tearing type easy-to-draw sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217951204U true CN217951204U (en) | 2022-12-02 |
Family
ID=84216402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221335195.1U Active CN217951204U (en) | 2022-05-31 | 2022-05-31 | Full-tearing type easy-to-draw sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217951204U (en) |
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2022
- 2022-05-31 CN CN202221335195.1U patent/CN217951204U/en active Active
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