CN213767552U - Diaphragm with micro-nano grating structure - Google Patents
Diaphragm with micro-nano grating structure Download PDFInfo
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- CN213767552U CN213767552U CN202022010286.5U CN202022010286U CN213767552U CN 213767552 U CN213767552 U CN 213767552U CN 202022010286 U CN202022010286 U CN 202022010286U CN 213767552 U CN213767552 U CN 213767552U
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Abstract
The utility model discloses technical scheme discloses a diaphragm with micro-nano grating structure, wherein, the diaphragm is including gum layer, substrate layer, under coat, image layer, nanometer coating, protection rete and the printing layer that stacks gradually, wherein, be formed with micro-nano grating structure pattern on the image layer. The utility model discloses a diaphragm temperature resistance with micro-nano grating structure is high, and cohesion between the layer is strong, and ageing resistance is excellent, can satisfy the operation requirement of most packing and card class product.
Description
Technical Field
The utility model belongs to the technical field of composite membrane technique and specifically relates to a diaphragm with micro-nano grating structure is related to.
Background
The micro-nano grating structure is applied to a plastic film, can be used for manufacturing a laser film with a holographic effect, and is often used in the field of packaging or cards. At present, the most extensive laser films are mainly made of three types of PET, PVC and PP, but the three laser films have some problems in the using process, for example, the micro-nano grating structure is damaged to influence the holographic effect because of poor interlayer bonding force or coating falling or mask separation caused by water intolerance, and the micro-nano grating structure is damaged due to high temperature in the subsequent manufacturing process, or the micro-nano grating structure is not aged to cause color change and yellowing, so that the laser films can be generally only used for some low-end products, and have great problems in the aspects of performance and service life when being applied to high-end products requiring high performance.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be that prior art's membrane can drop or the facial mask separation because the coating that the interlayer binding force is poor or not water-fast causes, need higher temperature in the follow-up manufacture process and cause micro-nano grating structure to be destroyed and influence holographic effect, perhaps not ageing-resistant again causes discolour and yellow.
For solving foretell technical problem, the utility model discloses technical scheme provides a diaphragm with micro-nano grating structure, wherein, the diaphragm is including gum layer, substrate layer, under coat, image layer, nanometer coating, protection rete and the printing layer that stacks gradually, wherein, be formed with micro-nano grating structure pattern on the image layer.
Optionally, the back adhesive layer is made of a hot melt adhesive.
Optionally, the material of substrate layer is any one or two kinds of composites in PVC, PETG, PET, PC, ABS, the thickness of substrate layer is 12 ~ 400 microns.
Optionally, the primer layer is made of an acrylic primer, and the thickness of the primer layer is 0.5-5 micrometers.
Optionally, the material of the image layer is a two-component or multi-component reaction type resin, and the thickness of the image layer is 0.5-10 micrometers.
Optionally, the nano coating is made of a high-reflection metal, a metal compound or a metal compound nano composite material, and the thickness of the nano coating is 200-500 angstroms.
Optionally, the nano coating is made of zinc sulfide, aluminum, copper, zinc, tin, magnesium fluoride, silicon dioxide or selenium sulfide.
Optionally, the material of the protective film layer is any one of PET, PVC, PP, PETG, PC, and ABS, and the thickness of the protective film layer is 10-100 micrometers.
The utility model discloses technical scheme's beneficial effect is:
the utility model discloses a diaphragm temperature resistance with micro-nano grating structure is high, and cohesion between the layer is strong, and ageing resistance is excellent, can satisfy the operation requirement of most packing and card class product.
Drawings
Fig. 1 is the embodiment of the utility model provides an in the embodiment have the structure schematic diagram of the diaphragm of micro-nano grating structure.
In the drawings: 1 is a back glue layer, 2 is a substrate layer, 3 is a bottom coating layer, 4 is an image layer, 5 is a nano coating layer, 6 is a protective film layer, and 7 is a printing layer.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Referring to fig. 1, a membrane with a micro-nano grating structure according to an embodiment is shown, where the membrane includes a back adhesive layer 1, a substrate layer 2, a bottom coating layer 3, an image layer 4, a nano coating layer 5, a protective film layer 6, and a printing layer 7, which are sequentially stacked, where a micro-nano grating structure pattern is formed on the image layer 4.
In this embodiment, the material of the back adhesive layer 1 is hot melt adhesive.
In this embodiment, the material of the substrate layer 2 is any one or two of polyvinyl chloride (PVC), polyethylene terephthalate-1, 4-cyclohexanedimethanol ester (PETG), polyester resin (PET), Polycarbonate (PC) and ABS plastic, and the thickness of the substrate layer 2 is 12 to 400 micrometers.
In this embodiment, the material of the bottom coating 3 is an acrylic acid system bottom coating, and the thickness of the bottom coating 3 is 0.5 to 5 micrometers, so as to ensure the flatness of the surface after priming.
In this embodiment, the material of the image layer 4 is a two-component or multi-component reaction type resin, and the thickness of the image layer 4 is 0.5 to 10 μm.
In this embodiment, the material of the nano-coating 5 is a high-reflective metal, a metal compound or a metal compound nano-composite material, and the thickness of the nano-coating 5 is 200 to 500 angstroms.
In this embodiment, the nano coating 5 is made of zinc sulfide, aluminum, copper, zinc, tin, magnesium fluoride, silicon dioxide, or selenium sulfide.
In this embodiment, the protective film layer 6 is made of any one of polyester resin (PET), polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate-1, 4-cyclohexanedimethanol ester (PETG), Polycarbonate (PC), and ABS plastic, and the thickness of the protective film layer 6 is 10 to 100 μm.
The features and functions of the present invention will be further understood from the following description.
The embodiment also provides a manufacturing method of the membrane with the micro-nano grating structure, wherein the manufacturing method comprises the following steps:
step 1: first, the base material layer 2 is prepared.
Step 2: secondly, priming and coating a bottom coating 3 on the surface of the substrate layer 2, wherein the bottom coating 3 is used for increasing the bonding force between the image layer 4 and the substrate layer 2; the primer layer 3 may be omitted depending on the material and the firmness requirement of the substrate layer 2, and the primer layer 3 is generally acrylic, and may be any one of polybutadiene, polyethyleneimine and isocyanate, as the case may be. And the coated side of the base material layer 2 is subjected to corona treatment to increase the adhesion of the base coating layer 3 on the base material layer 2 before the base coating layer 3 is coated. According to the difference of 2 temperature resistance of substrate layer, the stoving temperature should be adjusted in 60 ~ 150 ℃ within range during the coating under coat 3, avoids the substrate to rub and takes place the deformation, and follow-up all stoving temperatures that need the coating process are within this temperature interval equally.
And step 3: then, the image layer 4 is coated on the undercoat layer 3.
And 4, step 4: next, transferring the micro-nano grating structure pattern on the image layer 4 through a mould pressing process, and fully crosslinking and curing the resin of the image layer 4 at a certain temperature to increase the temperature resistance; the resin of the image layer 4 is a reactive acrylic resin, and comprises, by weight, 25-40% of propylene polyol, 40-60% of ethyl acetate, 1-5% of a polyol compound, 1-5% of a silane coupling agent, 5-10% of diisocyanate, 0.1-1% of a leveling agent and 0.1-1% of an anti-sticking agent. Moreover, the thickness of the image layer 4 is generally between 0.5 and 10 micrometers according to the different depths of the grating structures; the resin of the image layer 4 has a low glass transition temperature (TG temperature) before cross-linking and curing, the micro-nano grating structure can be transferred at a low temperature, and the glass transition temperature (TG temperature) can reach more than 150 ℃ after curing.
And 5: next, the image layer 4 is coated with the nano coating 5 by a physical vapor deposition process, a chemical vapor deposition process, a vacuum plating process, or a nano coating process, preferably, the vacuum plating process is selected in the embodiment, and the nano coating 5 can increase the brightness of the image. The true plating side (i.e., the surface of the image layer 4) is corona treated prior to vacuum plating of the nanocoating 5 to increase plating fastness (i.e., fastness between the image layer 4 and the nanocoating 5).
Step 6: and a protective film layer 6 is attached to the nano coating 5 through a composite process, so that the overall wear resistance, the melt resistance and the thermal stability of the membrane are improved, and the protective film layer 6 can be omitted according to different membrane product requirements, depending on specific conditions.
And 7: and then, coating a printing layer 7 on the protective film layer 6 to improve the printing adaptability of the membrane, wherein the printing layer 7 is at least suitable for one or more printing modes of offset printing, silk-screen printing and laser printer ink-jet printing.
And 8: and finally, coating the back glue layer 1 on the back surface of the substrate layer 2, wherein the back glue layer 1 can be optional according to different materials of the substrate layer 2 and the using method of the whole membrane, and is determined according to specific conditions.
To sum up, the utility model discloses a diaphragm temperature resistance with micro-nano grating structure is high, and cohesion between the layer is strong, and ageing resistance is excellent, can satisfy the operation requirement of most packing and card class product.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (8)
1. The utility model provides a diaphragm with micro-nano grating structure, its characterized in that, the diaphragm is including gum layer, substrate layer, under coat, image layer, nano coating, protection rete and the printing layer that stacks gradually, wherein, be formed with micro-nano grating structure pattern on the image layer.
2. The membrane with the micro-nano grating structure according to claim 1, wherein the back adhesive layer is made of a hot melt adhesive.
3. The membrane with the micro-nano grating structure according to claim 1, wherein the substrate layer is made of any one of polyvinyl chloride, polyethylene terephthalate-1, 4-cyclohexanedimethanol ester, polyester resin, polycarbonate and ABS plastic, and the thickness of the substrate layer is 12-400 microns.
4. The membrane with the micro-nano grating structure according to claim 1, wherein the base coat is made of an acrylic acid system base coat, and the thickness of the base coat is 0.5-5 micrometers.
5. The membrane with the micro-nano grating structure as claimed in claim 1, wherein the image layer is made of two-component or multi-component reaction type resin, and the thickness of the image layer is 0.5-10 μm.
6. The membrane with the micro-nano grating structure according to claim 1, wherein the nano coating is made of a high-reflection metal, a metal compound or a metal compound nano composite material, and the thickness of the nano coating is 200-500 angstroms.
7. The membrane with the micro-nano grating structure according to claim 6, wherein the nano coating is made of zinc sulfide, aluminum, copper, zinc, tin, magnesium fluoride, silicon dioxide or selenium sulfide.
8. The membrane with the micro-nano grating structure according to claim 1, wherein the protective film layer is made of any one of polyester resin, polyvinyl chloride, polypropylene, polyethylene terephthalate-1, 4-cyclohexanedimethanol ester, polycarbonate and ABS plastic, and the thickness of the protective film layer is 10-100 micrometers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022010286.5U CN213767552U (en) | 2020-09-15 | 2020-09-15 | Diaphragm with micro-nano grating structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022010286.5U CN213767552U (en) | 2020-09-15 | 2020-09-15 | Diaphragm with micro-nano grating structure |
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| CN213767552U true CN213767552U (en) | 2021-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923547A (en) * | 2020-09-15 | 2020-11-13 | 上海宏盾防伪材料有限公司 | Diaphragm with micro-nano grating structure and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923547A (en) * | 2020-09-15 | 2020-11-13 | 上海宏盾防伪材料有限公司 | Diaphragm with micro-nano grating structure and manufacturing method thereof |
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