CN219811063U - Reflective film - Google Patents
Reflective film Download PDFInfo
- Publication number
- CN219811063U CN219811063U CN202321343266.7U CN202321343266U CN219811063U CN 219811063 U CN219811063 U CN 219811063U CN 202321343266 U CN202321343266 U CN 202321343266U CN 219811063 U CN219811063 U CN 219811063U
- Authority
- CN
- China
- Prior art keywords
- layer
- pmma
- glass bead
- pmma layer
- glass beads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010410 layer Substances 0.000 claims abstract description 84
- 239000011324 bead Substances 0.000 claims abstract description 51
- 239000011521 glass Substances 0.000 claims abstract description 51
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 45
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 45
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 13
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007747 plating Methods 0.000 abstract description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 238000005269 aluminizing Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of reflective materials, in particular to a reflective film, which comprises a PET surface layer, wherein a PMMA layer is arranged on the upper plane of the PET surface layer, a glass bead layer is embedded in the PMMA layer, the glass bead layer comprises glass beads which are flatly paved and fully distributed on the PMMA layer, adjacent glass beads are arranged at intervals, hemispherical protrusions are formed on the upper plane of the PMMA layer, the hemispherical protrusions correspond to the positions and the number of the glass beads one by one, an aluminum plating layer is arranged on the upper plane of the PMMA layer, and a pressure-sensitive adhesive layer is arranged on the upper plane of the aluminum plating layer; the utility model embeds the glass bead layer in the PMMA layer to form an integrated structure, and the PMMA layer and the glass bead layer can be formed simultaneously by only coating one PMMA layer during production.
Description
Technical field:
the utility model belongs to the technical field of reflective materials, and particularly relates to a reflective film.
The background technology is as follows:
the reflecting film is a kind of retroreflective material which can be directly used as a film and is also the most widely used retroreflective material. Most of the current reflective films are made of PMMA or PVC as a surface layer and glass beads coated with metal are used as reflective pressure-sensitive reflective materials. When the anti-reflection material is used, the incident light is reflected by utilizing the anti-reflection characteristic of the anti-reflection material, so that the anti-reflection material is widely applied to the fields of traffic, fire protection, railways and the like, and the existence of a wearer is highlighted by the anti-reflection characteristic of the anti-reflection material so as to improve the safety.
The structure of a reflective film existing in the market is as follows: including first PMMA layer, be provided with the second PMMA layer at the last plane on first PMMA layer, be provided with the glass bead layer on the second PMMA layer, the glass bead comprises the glass bead that a plurality of tilings set up, wherein, the lower extreme of glass bead is embedded into the second PMMA in situ, is provided with the third PMMA layer in the top on glass bead layer, and the upper end of glass bead is embedded into the third PMMA in situ, then is provided with aluminizing layer at the last plane on third PMMA layer, and the last plane on aluminizing layer is provided with the pressure sensitive adhesive layer. The reflecting material comprises six layers, the whole process is complicated, the coating is needed for 5 times, and glass beads are also needed to be placed, so that the cost of production materials is high, the equipment cost is high, the labor cost is also high, the cost of the product is high, the thickness of the product is thicker, and the thickness of the product is 13-14 filaments.
The utility model comprises the following steps:
the utility model aims to provide a reflective film which simplifies the production process and reduces the production cost.
The utility model is realized in the following way:
the utility model provides a reflective membrane, includes the PET surface course, is provided with the PMMA layer on the last plane of PET surface course, is equipped with the glass bead layer in the PMMA layer is embedded, the glass bead layer is including tiling the glass bead that fills the PMMA layer, and adjacent glass bead interval sets up the last plane on PMMA layer is formed with hemisphere face form arch, hemisphere face form arch and the position, the quantity one-to-one of glass bead, is provided with aluminizing layer at the last plane on PMMA layer, the last plane on aluminizing layer is provided with the pressure sensitive adhesive layer.
In the above-mentioned reflective film, the upper plane of the pressure-sensitive adhesive layer is provided with release paper.
In the reflective film, the distance from the bottom plane of the PET surface layer to the upper plane of the pressure-sensitive adhesive layer is 10+/-0.05 filament.
In the reflective film, the diameter of the glass beads is 10-100 μm.
In the reflective film, the refractive index of the glass beads is 1.9-1.95.
Compared with the prior art, the utility model has the outstanding advantages that:
the utility model embeds the glass bead layer in the PMMA layer to form an integrated structure, and can simultaneously form the PMMA layer and the glass bead layer by only coating one PMMA layer during production without additionally paving the glass beads.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of the present utility model.
In the figure: 1. a PET surface layer; 2. a PMMA layer; 3. glass beads; 4. a hemispherical protrusion; 5. plating an aluminum layer; 6. a pressure-sensitive adhesive layer; 7. and (5) release paper.
The specific embodiment is as follows:
the utility model is further described below with reference to fig. 1 by way of specific examples:
the utility model provides a reflective film, which comprises a PET (polyethylene terephthalate) surface layer 1, wherein a PMMA layer 2 (polymethyl methacrylate layer) is arranged on the upper plane of the PET surface layer 1, a glass bead layer is embedded in the PMMA layer 2, the glass bead layer comprises glass beads 3 which are flatly paved and fully distributed on the PMMA layer 2, and the adjacent glass beads 3 are arranged at intervals, wherein the diameter of each glass bead 3 is 10-100 mu m, and the specific diameter can be arbitrarily valued in the range. And the refractive index of the glass beads 3 is 1.9-1.95, and the refractive index is selected according to actual conditions. Hemispherical protrusions 4 are formed on the upper plane of the PMMA layer 2, and the hemispherical protrusions 4 correspond to the positions and the number of the glass beads 3 one by one, specifically, the hemispherical protrusions 4 are generated due to the glass beads 3 and the intervals between the glass beads 3. The part with the glass beads plays a supporting role on the PMMA layer 2, and the gaps among the glass beads 3 are automatically sunk due to the fact that the glass beads are not supported, so that the hemispherical protrusions 4 are formed. An aluminized layer 5 is arranged on the upper plane of the PMMA layer 2, and a pressure-sensitive adhesive layer 6 is arranged on the upper plane of the aluminized layer 5. The present utility model can be used as an advertising film or the like.
Further, the distance from the bottom plane of the PET surface layer 1 to the upper plane of the pressure-sensitive adhesive layer 6 was 10.+ -. 0.05 filament. I.e. the thickness of the product is 10 + 0.05 filament, typically 10 filament.
According to the utility model, the glass bead layer is embedded in the PMMA layer 2 to form an integrated structure, and the PMMA layer 2 and the glass bead layer can be formed simultaneously by only coating one PMMA layer 2 during production, so that the glass beads 3 do not need to be paved in addition. After the PMMA layer 2 is coated, the glass beads 3 in the PMMA layer 2 automatically sink to a certain height in the PMMA layer 2 due to self gravity, so that the tiling effect is achieved, and then the glass bead layer is formed. Compared with the prior art, the utility model has the advantages that one PMMA layer 2 is omitted, the coating times and the working procedures of paving the glass beads 3 are reduced, the thickness of the product is reduced from 13-14 wires to about 10 wires, the production process is simplified, the production material cost, the equipment cost and the labor cost are reduced, the cost and the efficiency are reduced, and meanwhile, the yield of the product is also improved.
Since the pressure-sensitive adhesive layer 6 has a certain adhesiveness, the present utility model is provided with a release paper 7 on the upper plane of the pressure-sensitive adhesive layer 6 when not in use. When the release paper 7 is stuck, the release paper is torn off.
It should be noted that the terms like "upper" and "lower" are also used in the present specification for convenience of description, but are not limited to the scope of the present utility model, and the changes or modifications of the relative relationship are also considered as the scope of the present utility model without any substantial modification of the technical content.
The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model, therefore: all equivalent changes in shape, structure and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (5)
1. A reflective film, characterized by: including PET surface course (1), be provided with PMMA layer (2) on the last plane of PET surface course (1), be equipped with glass bead layer in PMMA layer (2) are embedded, glass bead layer is including tiling glass bead (3) of being covered with PMMA layer (2), and the interval sets up between adjacent glass bead (3) the last plane of PMMA layer (2) is formed with hemisphere face form arch (4), the position, the quantity one-to-one of hemisphere face form arch (4) and glass bead (3), be provided with aluminized layer (5) at the last plane of PMMA layer (2), the last plane of aluminized layer (5) is provided with pressure sensitive adhesive layer (6).
2. A retroreflective sheeting according to claim 1, wherein: the upper plane of the pressure-sensitive adhesive layer (6) is provided with release paper (7).
3. A retroreflective sheeting according to claim 1 or 2, wherein: the distance from the bottom plane of the PET surface layer (1) to the upper plane of the pressure-sensitive adhesive layer is 10+/-0.05 silk.
4. A retroreflective sheeting according to claim 1 or 2, wherein: the diameter of the glass beads (3) is 10-100 mu m.
5. A retroreflective sheeting according to claim 1 or 2, wherein: the refractive index of the glass beads (3) is 1.9-1.95.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321343266.7U CN219811063U (en) | 2023-05-29 | 2023-05-29 | Reflective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321343266.7U CN219811063U (en) | 2023-05-29 | 2023-05-29 | Reflective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811063U true CN219811063U (en) | 2023-10-10 |
Family
ID=88216454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321343266.7U Active CN219811063U (en) | 2023-05-29 | 2023-05-29 | Reflective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811063U (en) |
-
2023
- 2023-05-29 CN CN202321343266.7U patent/CN219811063U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |