CN213739261U - Lens gum with double release films - Google Patents
Lens gum with double release films Download PDFInfo
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- CN213739261U CN213739261U CN202022493652.7U CN202022493652U CN213739261U CN 213739261 U CN213739261 U CN 213739261U CN 202022493652 U CN202022493652 U CN 202022493652U CN 213739261 U CN213739261 U CN 213739261U
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- release film
- double
- adhesive tape
- type membrane
- release
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Abstract
The utility model discloses a lens gum with double release films, belonging to the technical field of gum, comprising a double-sided adhesive, and a light release film and a heavy release film which are respectively stuck on both sides of the double-sided adhesive; wherein, the double faced adhesive tape is the cyclic annular structure who is equipped with the through-hole, compares with prior art, and after tearing light from type membrane and pasting one side of double faced adhesive tape to the camera lens, heavily leave the effect of the another side that the type membrane still can protect the double faced adhesive tape and prevent that the double faced adhesive tape from being polluted and losing viscidity in follow-up technology, and the edge of light from type membrane is extended in the double faced adhesive tape edge simultaneously, heavily leaves the type membrane and is equipped with rectangular shape handle, and rectangular shape handle protrusion is in the edge of light from type membrane, conveniently tears down earlier and heavily from type membrane after slightly leaving the type membrane.
Description
Technical Field
The utility model relates to a gum technical field specifically is a lens gum with two from type membrane.
Background
The back adhesive has the function of enabling the mobile phone components and parts to be adhered to the mobile phone shell without falling off or displacement; the camera lens is one of the important components and parts on the cell-phone, and in order to guarantee the normal use that the cell-phone was made a video recording, the gum also need be used to pasting between camera lens and the cell-phone shell.
The existing lens back glue comprises a double-sided adhesive and a release film, wherein the back glue is adhered to one side of the lens at the periphery of the lens after the release film is torn off, and the other side of the lens is used for being adhered to a mobile phone shell.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned technique, the utility model provides a lens gum with two from type membrane all is equipped with from the type membrane on the double faced adhesive tape both sides, pastes the back on the lens at the double faced adhesive tape, and the another side is protected the double faced adhesive tape from the type membrane and can not be polluted and scatter and disappear viscidity in follow-up technology.
In order to achieve the above object, the present invention provides a lens back adhesive with dual release films, which comprises a double-sided adhesive tape, and a light release film and a heavy release film respectively adhered to two sides of the double-sided adhesive tape; wherein, the double faced adhesive tape is the annular structure who is equipped with the through-hole, and slightly extends in the double faced adhesive tape edge from the edge of type membrane, heavily is equipped with rectangular shape handle from the type membrane, and rectangular shape handle protrusion is in the edge of slightly leaving the type membrane.
According to the specific scheme, the release force between the heavy release film and the double-sided adhesive tape is larger than the release force between the light release film and the double-sided adhesive tape.
In a specific scheme, the light release film layer is any one of a PET release film, a PVC release film, a PC release film, a PE release film, a PP release film and an OPP release film with the release force of 30-50 g/f.
In a specific scheme, the heavy release film layer is any one of a PET release film, a PVC release film, a PC release film, a PE release film, a PP release film and an OPP release film with the release force of 100-200 g/f.
In a specific scheme, the thicknesses of the light release film and the heavy release film are 150-175 μm.
In a specific scheme, the double-sided adhesive tape is a double-sided coating acrylic adhesive tape of 3M9448A model.
In a specific scheme, the length of the part of the light release film extending to the double-sided adhesive tape outlet part is 10-20 mm.
In a specific scheme, the double-sided adhesive tape is of an annular structure, and the annular width is 3-3.6 mm.
In a specific scheme, the double-sided adhesive tape is of a rectangular ring or a chamfered rectangular structure.
The utility model has the advantages that: the utility model provides a lens gum with double release films, which comprises a double-sided adhesive tape, and a light release film and a heavy release film which are respectively stuck on two sides of the double-sided adhesive tape; wherein, the double faced adhesive tape is the cyclic annular structure who is equipped with the through-hole, compares with prior art, and after tearing light from type membrane and pasting one side of double faced adhesive tape to the camera lens, heavily leave the effect of the another side that the type membrane still can protect the double faced adhesive tape and prevent that the double faced adhesive tape from being polluted and losing viscidity in follow-up technology, and the edge of light from type membrane is extended in the double faced adhesive tape edge simultaneously, heavily leaves the type membrane and is equipped with rectangular shape handle, and rectangular shape handle protrusion is in the edge of light from type membrane, conveniently tears down earlier and heavily from type membrane after slightly leaving the type membrane.
Drawings
FIG. 1 is a diagram of a lens gum structure layer of the present invention;
FIG. 2 is a schematic view of one-time punching process of the lens back glue of the present invention;
fig. 3 is the utility model discloses a die-cut processing schematic diagram of lens gum secondary.
The main element symbols are as follows:
1. heavy release film 1; 2. double-sided adhesive tape; 3. a light release film; 11. a handle; 4. and (4) a cutter.
Detailed Description
In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.
As described in the background art, after the existing lens background is adhered to the lens, the other side of the double-sided adhesive tape 2 is easily contaminated in the subsequent processing process to cause the scattering viscosity, based on this, the utility model provides a lens back adhesive with double release films, please refer to fig. 1, which includes the double-sided adhesive tape 2, and a light release film 3 and a heavy release film 1 which are respectively adhered to the two sides of the double-sided adhesive tape 2; wherein, the double faced adhesive tape 2 is the annular structure who is equipped with the through-hole, and slightly extends in the double faced adhesive tape 2 edge from the edge of type membrane 3, heavily is equipped with rectangular shape handle 11 from type membrane 1, and rectangular shape handle 11 protrusion is in the edge of slightly leaving type membrane 3.
Compared with the prior art, the lens back glue with the double release films comprises a double-sided adhesive tape 2, and a light release film 3 and a heavy release film 1 which are respectively stuck on two sides of the double-sided adhesive tape 2; wherein, the annular structure of double faced adhesive tape 2 for being equipped with the through-hole, and the edge of light type membrane 3 is extended in the edge of double faced adhesive tape 2, heavily is equipped with rectangular shape handle 11 from type membrane 1, and rectangular shape handle 11 protrusion is in the edge of light type membrane 3, conveniently tears down earlier and tears down heavily from type membrane 1 from type membrane 3 after.
In the preferred scheme, the release force between the heavy release film 1 and the double-sided adhesive tape 2 is greater than the release force between the light release film 3 and the double-sided adhesive tape 2; when tearing light from type membrane 3, the handle 11 of directly fixing on heavy type membrane 1 again to light from type membrane 3 the epitaxial portion exert external force can, after one side and the camera lens bonding of double faced adhesive tape 2 were in the same place, the adhesion force between double faced adhesive tape 2 and the mirror surface was far greater than the adhesion force of heavy type membrane 1 and double faced adhesive tape 2, only need to apply external force to handle 11 department and can tear off heavy type membrane 1.
In the embodiment, the light release film 3 layer is any one of a PET release film, a PVC release film, a PC release film, a PE release film, a PP release film and an OPP release film with the release force of 30-50 g/f; the heavy release film 1 layer is any one of PET release film, PVC release film, PC release film, PE release film, PP release film and OPP release film with the release force of 100-200 g/f.
In this embodiment, the thicknesses of the light release film 3 and the heavy release film 1 are 150-175 μm; this thickness can play a role in protecting the double-sided tape 2 from contamination.
The process of the lens gum with the double release films comprises the following steps: please refer to fig. 2 and 3
Step 1: respectively sticking a TPM2502 release film and a RC-8030 release film on two sides of the double-sided adhesive tape 2; and the RC-8030 release film is extended on 2 double-sided adhesive tapes;
step 2: punching a positioning hole on the part of the RC-8030 release film extending on the 2 double-sided adhesive tapes; fixing the position of the back adhesive of the lens by using a positioning hole, and punching a TPM2502 release film and 2 double-sided adhesive tapes by using a cutter 4; until the double-sided adhesive 2 sheet is punched into a ring shape with through holes.
And step 3: removing the inner frame of the double-sided adhesive tape 2 through a PET original film and a box sealing adhesive tape for a laminating machine;
and 4, step 4: the TPM2502 release film is removed, and a new release film 1 is covered on the double-sided adhesive tape 2 with the ring structure again.
And 5: and fixing the lens back adhesive by using the positioning hole on the RC-8030 release film, punching a new release film by using the cutter 4, and punching the heavy release film 1 into a required shape.
Step 6: removing edge materials through a laminating machine;
and 7: tearing off the RC-8030 release film, replacing the light release film 3, and cutting the light release film 3; so that the edge of the light release film 3 extends to the double-sided adhesive tape 2.
And 8: removing static electricity, checking, packaging and shipping.
In this embodiment, the double-sided adhesive tape 2 is a double-sided coated acrylic adhesive tape of 3M9448A type, and its color is white and translucent; the adhesive has good initial adhesiveness and sustained adhesiveness, is easy to die-cut and process, has good stability, and has good adhesiveness to plastic, rubber and rough surfaces; the adhesive has good permanent adhesion at high temperature, can resist 80 ℃ for a long time and 120 ℃ for a short time, can still keep good adhesion at high temperature, and is particularly suitable for being used as the back adhesive of a mobile phone lens.
According to the specific scheme, the length of the part extending from the light release film 3 to the double-sided adhesive tape 2 is 10-20 mm; the double-sided adhesive tape 2 is not damaged when the light release film 3 is torn; the double-sided adhesive tape 2 is of an annular structure, and the annular width is 3-3.6 mm; the width can provide a sufficiently large bonding area between the mobile phone shell and the lens; the double-sided adhesive tape 2 is a rectangular ring or a chamfered rectangular structure; the ring structure may be a circular ring structure.
The utility model has the advantages that:
1. the utility model provides a lens gum with double release films, which comprises a double-sided adhesive tape, and a light release film and a heavy release film which are respectively stuck on two sides of the double-sided adhesive tape; compared with the prior art, when the light release film is torn off to attach one surface of the double-sided adhesive tape to the lens, the heavy release film can still protect the other surface of the double-sided adhesive tape to prevent the double-sided adhesive tape from being polluted and losing viscosity in the subsequent process;
2. the edge of the light release film extends to the edge of the double-sided adhesive tape, the heavy release film is provided with a strip-shaped handle, and the strip-shaped handle protrudes out of the edge of the light release film, so that the light release film can be conveniently torn off first and then the heavy release film can be conveniently torn off;
3. the release force between the heavy release film and the double-sided adhesive tape is larger than that between the light release film and the double-sided adhesive tape; when the light release film is torn, the handle on the heavy release film is directly fixed, and then external force is applied to the outer extension part of the light release film.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (9)
1. The lens back glue with the double release films is characterized by comprising a double-sided adhesive tape, and a light release film and a heavy release film which are respectively stuck on two sides of the double-sided adhesive tape; wherein, the double faced adhesive tape is the annular structure who is equipped with the through-hole, and slightly extends in the double faced adhesive tape edge from the edge of type membrane, heavily is equipped with rectangular shape handle from the type membrane, and rectangular shape handle protrusion is in the edge of slightly leaving the type membrane.
2. The lens backing adhesive with the double release film according to claim 1, wherein the release force between the heavy release film and the double-sided adhesive tape is greater than the release force between the light release film and the double-sided adhesive tape.
3. The lens back adhesive with double release films according to claim 1, wherein the light release film layer is any one of PET release film, PVC release film, PC release film, PE release film, PP release film and OPP release film with a release force of 30-50 g/f.
4. The lens backing adhesive with double release films as claimed in claim 1, wherein the heavy release film layer is any one of PET release film, PVC release film, PC release film, PE release film, PP release film and OPP release film with a release force of 100-200 g/f.
5. The lens backing adhesive with double release films as claimed in claim 1, wherein the thicknesses of the light release film and the heavy release film are 150-175 μm.
6. The lens backing adhesive with the double release film according to claim 1, wherein the double-sided adhesive tape is a 3M9448A type double-sided coated acrylic adhesive tape.
7. The lens backing adhesive with the double release film according to claim 1, wherein the length of the part of the light release film extending to the double-sided adhesive tape outlet layer is 10-20 mm.
8. The lens backing adhesive with the double release film according to claim 1, wherein the double-sided adhesive tape has a ring-shaped structure, and the ring width is 3-3.6 mm.
9. The lens backing adhesive with the double release film according to claim 1, wherein the double-sided adhesive tape is a rectangular ring or a chamfered rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022493652.7U CN213739261U (en) | 2020-11-02 | 2020-11-02 | Lens gum with double release films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022493652.7U CN213739261U (en) | 2020-11-02 | 2020-11-02 | Lens gum with double release films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213739261U true CN213739261U (en) | 2021-07-20 |
Family
ID=76818889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022493652.7U Active CN213739261U (en) | 2020-11-02 | 2020-11-02 | Lens gum with double release films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213739261U (en) |
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2020
- 2020-11-02 CN CN202022493652.7U patent/CN213739261U/en active Active
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