CN110568535A - Reflective film and preparation method thereof - Google Patents
Reflective film and preparation method thereof Download PDFInfo
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- CN110568535A CN110568535A CN201910943115.7A CN201910943115A CN110568535A CN 110568535 A CN110568535 A CN 110568535A CN 201910943115 A CN201910943115 A CN 201910943115A CN 110568535 A CN110568535 A CN 110568535A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/041—Ball lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
- G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Theoretical Computer Science (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a reflective membrane and a preparation method thereof, wherein the reflective membrane comprises a base layer, the upper surface of the base layer is sequentially provided with a protective surface layer, a glass bead layer and a reflective aluminum foil layer from top to bottom, the lower surface of the base layer is sequentially provided with an adhesive layer and an adhesive protective layer from top to bottom, and an LED chip is further packaged in the glass bead layer. The invention is based on nylon fabric, so that the prepared reflective film has high structural strength, tensile strength, tear resistance and long service life, the primer is precoated on the nylon fabric, the vacuum aluminized film is smooth and clean, the firmness of the vacuum aluminized film is improved, the reflective effect is good, and the reflective film is not easy to fall off.
Description
Technical Field
the invention belongs to the technical field of reflective films, and particularly relates to a reflective film and a preparation method thereof.
Background
The reflective film is a directly applicable retroreflective material, which is a film manufactured by using a glass bead technique, a microprism technique, a synthetic resin technique, a thin film technique, a coating technique and a microreplication technique. The reflective film is widely applied to road traffic safety. The existing reflective film gives out warning for reflecting incident light according to the action principle, and due to the adoption of the light reflection principle, the reflective film is difficult to reflect the reflected light to a light source after the light incident angle is greater than 45 degrees, does not have the self-luminous function, is not favorable for timely finding the front obstacle under the dark condition, and has greatly reduced warning effect.
disclosure of Invention
the present invention is directed to a reflective film and a method for manufacturing the same, which solves the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reflective membrane, includes the basic unit, the upper surface of basic unit is from last to being equipped with protection surface course, glass bead layer and reflection of light aluminium foil layer down in proper order, be equipped with viscose layer and viscose inoxidizing coating in proper order on the lower surface of basic unit to down, still packaged with the LED chip in the glass bead layer.
preferably, the glass bead layer comprises a resin base layer and glass beads uniformly distributed in the resin base layer, and the particle size of the glass beads is 0.1-0.15 mm. The resin base layer takes epoxy resin as a raw material, so that the loss of reflected light can be reduced, and the implantation of glass beads is facilitated.
Preferably, the lead-out wires of the LED chip are perpendicular to the extending direction of the reflective film. The connecting wire from the side of being convenient for, when tearing reflection of light membrane simultaneously, can not cause the destruction to the LED chip.
Preferably, the protective surface layer is a PET film, and the thickness of the protective surface layer is 0.05-0.1 mm.
preferably, the base layer is formed by cutting a nylon fabric with the thickness of 0.2-0.3 mm.
Preferably, the adhesive protective layer is formed by cutting a PVC film with the thickness of 0.05-0.1mm, and the thickness of the adhesive layer is 0.06-0.08 mm.
A preparation method of a reflective film comprises the following operation steps:
S1: pre-treating a base layer, namely uniformly coating a layer of K-500 primer on the base layer, wherein the thickness of the coating is 2-4 microns, drying the coating in a drying channel with the temperature of 23-25 ℃ and the humidity of 63-66% for 10-15 minutes after coating, and waiting for the coating to be dried;
S2: vacuum aluminizing, namely inputting an aluminum wire with the diameter of 2mm into an evaporation boat at the speed of 0.4-0.8m/min under the condition of the vacuum degree of 2-8Pa to heat and evaporate the aluminum wire, so that aluminum atoms are condensed on a bottom glue layer, the rolling speed of a base layer is 120-180m/s, and a reflective aluminum foil layer with the thickness of 400-600A is formed on the bottom glue layer;
s3: implanting glass beads and LED chips, coating resin with the thickness being the same as the diameter of the glass beads on the reflective aluminum foil layer, implanting the glass beads into the resin, reserving an installation gap of the LED chips, outputting the base layer after the glass beads are implanted to the next station, and implanting the LED chips into the reserved installation gap;
s4: laminating, namely implanting glass beads and an LED chip into a resin base layer, outputting, laminating a PET film on the surface of the glass bead layer through a laminating machine to serve as a protective surface layer, drying the laminated glass bead layer in a drying oven with the temperature of 46-50 ℃ and the humidity of 24-28% for 3-5 hours, and rolling the dried laminated glass bead layer into a sectional material;
S5: and gluing, namely unreeling the section, coating a layer of polyurethane glue on the back surface of the base layer, and compounding a layer of PVC film on the glue layer to protect the glue layer. .
The invention has the technical effects and advantages that:
The invention is based on nylon fabric, so that the prepared reflective film has high structural strength, tensile strength, tear resistance and long service life, the primer is precoated on the nylon fabric, the vacuum aluminized film is smooth and clean, the firmness of the vacuum aluminized film is improved, the reflective effect is good, and the reflective film is not easy to fall off.
drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a schematic top view of the glass bead layer according to the present invention.
in the figure: the LED light source comprises a protection surface layer 1, a glass bead layer 2, glass beads 201, a resin base layer 202, a reflective aluminum foil layer 3, a base layer 4, an adhesive layer 5, an adhesive protection layer 6 and an LED chip 7.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
example 1
As shown in fig. 1-2, a reflective membrane, includes basic unit 4, the upper surface of basic unit 4 is from last to being equipped with protection surface layer 1, glass bead layer 2 and reflection of light aluminium foil layer 3 down in proper order, the lower surface of basic unit 4 is equipped with viscose layer 5 and viscose inoxidizing coating 6 from top to bottom in proper order, still be packaged with LED chip 7 in the glass bead layer 2.
the glass bead layer 2 comprises a resin base layer 202 and glass beads 201 uniformly distributed in the resin base layer 202, wherein the particle size of the glass beads 201 is 0.1 mm.
And the lead-out wires of the LED chip 7 are vertical to the extending direction of the reflective film.
The protection surface course 1 is the PET membrane, the thickness of protection surface course 1 is 0.05 mm.
The base layer 4 is formed by cutting a nylon fabric with the thickness of 0.2 mm.
Viscose inoxidizing coating 6 is cut by the PVC membrane that thickness is 0.05mm thickness and forms, viscose layer 5 thickness is 0.06 mm.
A preparation method of a reflective film comprises the following operation steps:
s1: pretreating the base layer 4, uniformly coating a layer of K-500 primer on the base layer 4, wherein the thickness of the coating is 2 microns, drying the coating in a drying channel with the temperature of 23 ℃ and the humidity of 63% for 10 minutes after coating, and waiting for the coating to be dried;
S2: vacuum aluminizing, namely inputting an aluminum wire with the diameter of 2mm into an evaporation boat at the speed of 0.4m/min under the condition of 2Pa vacuum degree to heat and evaporate the aluminum wire, so that aluminum atoms are condensed on a primer layer, the rolling speed of a base layer 4 is 120m/s, and a reflective aluminum foil layer 3 with the thickness of 400A is formed on the primer layer;
s3: implanting glass beads 201 and LED chips 7, coating resin with the thickness the same as the diameter of the glass beads 201 on the reflective aluminum foil layer 3, then implanting the glass beads 201 into the resin, reserving an installation gap of the LED chips 7, outputting the base layer 4 with the implanted glass beads 201 to the next station, and implanting the LED chips 7 into the reserved installation gap;
s4: laminating, namely implanting the glass beads 201 and the LED chips 7 into the resin base layer 202, then outputting, laminating a PET film on the surface of the glass bead layer 2 through a laminating machine to serve as a protective surface layer 1, drying the laminated glass bead layer in an oven with the temperature of 46 ℃ and the humidity of 24% for 3 hours, and rolling the dried laminated glass bead layer into a section;
s5: and gluing, namely unreeling the section, coating a layer of polyurethane glue on the back surface of the base layer 4, and compounding a layer of PVC film on the glue layer to protect the adhesive layer 5.
Example 2
As shown in fig. 1-2, a reflective membrane, includes basic unit 4, the upper surface of basic unit 4 is from last to being equipped with protection surface layer 1, glass bead layer 2 and reflection of light aluminium foil layer 3 down in proper order, the lower surface of basic unit 4 is equipped with viscose layer 5 and viscose inoxidizing coating 6 from top to bottom in proper order, still be packaged with LED chip 7 in the glass bead layer 2.
The glass bead layer 2 comprises a resin base layer 202 and glass beads 201 uniformly distributed in the resin base layer 202, wherein the particle size of the glass beads 201 is 0.12 mm.
and the lead-out wires of the LED chip 7 are vertical to the extending direction of the reflective film.
the protective surface layer 1 is a PET film, and the thickness of the protective surface layer 1 is 0.08 mm.
The base layer 4 is formed by cutting a nylon fabric with the thickness of 0.25 mm.
The viscose protective layer 6 is formed by cutting a PVC film with the thickness of 0.08mm, and the viscose layer 5 is 0.07mm in thickness.
A preparation method of a reflective film comprises the following operation steps:
S1: pretreating the base layer 4, uniformly coating a layer of K-500 primer on the base layer 4, wherein the thickness of the coating is 3 mu m, drying the coated base layer for 12 minutes in a drying channel with the temperature of 24 ℃ and the humidity of 65%, and waiting for the coating to be dried;
S2: vacuum aluminizing, namely inputting an aluminum wire with the diameter of 2mm into an evaporation boat at the speed of 0.6m/min under the condition of 5Pa vacuum degree to heat and evaporate the aluminum wire, so that aluminum atoms are condensed on a primer layer, the rolling speed of a base layer 4 is 150m/s, and a reflective aluminum foil layer 3 with the thickness of 500A is formed on the primer layer;
S3: implanting glass beads 201 and LED chips 7, coating resin with the thickness the same as the diameter of the glass beads 201 on the reflective aluminum foil layer 3, then implanting the glass beads 201 into the resin, reserving an installation gap of the LED chips 7, outputting the base layer 4 with the implanted glass beads 201 to the next station, and implanting the LED chips 7 into the reserved installation gap;
S4: laminating, namely implanting the glass beads 201 and the LED chips 7 into the resin base layer 202, then outputting, laminating a PET film on the surface of the glass bead layer 2 through a laminating machine to serve as a protective surface layer 1, drying the laminated glass bead layer in a drying oven with the temperature of 48 ℃ and the humidity of 26% for 4 hours, and rolling the dried laminated glass bead layer into a section;
S5: and gluing, namely unreeling the section, coating a layer of polyurethane glue on the back surface of the base layer 4, and compounding a layer of PVC film on the glue layer to protect the adhesive layer 5.
example 3
As shown in fig. 1-2, a reflective membrane, includes basic unit 4, the upper surface of basic unit 4 is from last to being equipped with protection surface layer 1, glass bead layer 2 and reflection of light aluminium foil layer 3 down in proper order, the lower surface of basic unit 4 is equipped with viscose layer 5 and viscose inoxidizing coating 6 from top to bottom in proper order, still be packaged with LED chip 7 in the glass bead layer 2.
the glass bead layer 2 comprises a resin base layer 202 and glass beads 201 uniformly distributed in the resin base layer 202, and the particle size of the glass beads 201 is 0.15 mm.
and the lead-out wires of the LED chip 7 are vertical to the extending direction of the reflective film.
the protection surface course 1 is the PET membrane, the thickness of protection surface course 1 is 0.1 mm.
The base layer 4 is formed by cutting a nylon fabric with the thickness of 0.3 mm.
The viscose protective layer 6 is formed by cutting a PVC film with the thickness of 0.1mm, and the viscose layer 5 is 0.08mm in thickness.
A preparation method of a reflective film comprises the following operation steps:
S1: pretreating the base layer 4, uniformly coating a layer of K-500 primer on the base layer 4, wherein the thickness of the coating is 4 mu m, drying for 15 minutes in a drying channel with the temperature of 25 ℃ and the humidity of 66% after coating, and waiting for the drying of the coating;
S2: vacuum aluminizing, namely inputting an aluminum wire with the diameter of 2mm into an evaporation boat at the speed of 0.8m/min under the vacuum degree condition of 8Pa to heat and evaporate the aluminum wire, so that aluminum atoms are condensed on a primer layer, the rolling speed of a base layer 4 is 180m/s, and a reflective aluminum foil layer 3 with the thickness of 600A is formed on the primer layer;
S3: implanting glass beads 201 and LED chips 7, coating resin with the thickness the same as the diameter of the glass beads 201 on the reflective aluminum foil layer 3, then implanting the glass beads 201 into the resin, reserving an installation gap of the LED chips 7, outputting the base layer 4 with the implanted glass beads 201 to the next station, and implanting the LED chips 7 into the reserved installation gap;
S4: laminating, namely implanting the glass beads 201 and the LED chips 7 into the resin base layer 202, then outputting, laminating a PET film on the surface of the glass bead layer 2 through a laminating machine to serve as a protective surface layer 1, drying the laminated glass bead layer in a drying oven with the temperature of 50 ℃ and the humidity of 28% for 5 hours, and rolling the dried laminated glass bead layer into a sectional material;
S5: and gluing, namely unreeling the section, coating a layer of polyurethane glue on the back surface of the base layer 4, and compounding a layer of PVC film on the glue layer to protect the adhesive layer 5.
The invention is based on nylon fabric, so that the prepared reflective membrane has high structural strength, tensile strength, tear resistance and long service life, the primer is precoated on the nylon fabric, the vacuum aluminized film is smooth and clean, the firmness of the vacuum aluminized film is improved, the reflective effect is good, and the reflective membrane is not easy to fall off.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A retroreflective sheeting comprising a base layer (4), characterized in that: the upper surface of basic unit (4) is from last to being equipped with protection surface course (1), glass bead layer (2) and reflection of light aluminium foil layer (3) down in proper order, the lower surface of basic unit (4) is gone up to being equipped with viscose layer (5) and viscose inoxidizing coating (6) down in proper order, still be packaged with LED chip (7) in glass bead layer (2).
2. A retroreflective sheeting according to claim 1, wherein: the glass bead layer (2) comprises a resin base layer (202) and glass beads (201) uniformly distributed in the resin base layer (202), and the particle size of the glass beads (201) is 0.1-0.15 mm.
3. a retroreflective sheeting according to claim 1, wherein: and the lead-out wires of the LED chip (7) are vertical to the extending direction of the reflective film.
4. A retroreflective sheeting according to claim 1, wherein: the protective surface layer (1) is a PET film, and the thickness of the protective surface layer (1) is 0.05-0.1 mm.
5. A retroreflective sheeting according to claim 1, wherein: the base layer (4) is formed by cutting a nylon fabric with the thickness of 0.2-0.3 mm.
6. a retroreflective sheeting according to claim 1, wherein: the adhesive protective layer (6) is formed by cutting a PVC film with the thickness of 0.05-0.1mm, and the adhesive layer (5) is 0.06-0.08 mm.
7. A method for producing a retroreflective sheeting according to any one of claims 1-6, comprising: the method comprises the following operation steps:
s1: pretreating the base layer (4), uniformly coating a layer of K-500 primer on the base layer (4), wherein the thickness of the coating is 2-4um, drying for 10-15 minutes in a drying channel with the temperature of 23-25 ℃ and the humidity of 63-66% after coating, and waiting for the coating to be dried;
S2: vacuum aluminizing, namely inputting an aluminum wire with the diameter of 2mm into an evaporation boat at the speed of 0.4-0.8m/min under the condition of 2-8Pa vacuum degree to heat and evaporate the aluminum wire, so that aluminum atoms are condensed on a primer layer, the winding speed of a base layer (4) is 120-180m/s, and a reflective aluminum foil layer (3) with the thickness of 400-600A is formed on the primer layer;
S3: implanting glass beads (201) and LED chips (7), coating resin with the thickness being the same as the diameter of the glass beads (201) on the reflective aluminum foil layer (3), then implanting the glass beads (201) into the resin, reserving installation gaps of the LED chips (7), outputting the base layer (4) with the implanted glass beads (201) to the next station, and implanting the LED chips (7) into the reserved installation gaps;
s4: laminating, namely implanting glass beads (201) and LED chips (7) into a resin base layer (202) and then outputting, laminating a PET film on the surface of a glass bead layer (2) through a compound machine to serve as a protective surface layer (1), inputting the laminated film into an oven with the temperature of 46-50 ℃ and the humidity of 24-28% for drying treatment for 3-5 hours, and rolling the dried product into a sectional material;
S5: and gluing, namely unreeling the section, coating a layer of polyurethane glue on the back surface of the base layer (4), and compounding a layer of PVC film on the glue layer to protect the glue layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943115.7A CN110568535A (en) | 2019-09-30 | 2019-09-30 | Reflective film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910943115.7A CN110568535A (en) | 2019-09-30 | 2019-09-30 | Reflective film and preparation method thereof |
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| CN201910943115.7A Pending CN110568535A (en) | 2019-09-30 | 2019-09-30 | Reflective film and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965745A (en) * | 2020-07-14 | 2020-11-20 | 晋江联兴反光材料有限公司 | Preparation process of self-cleaning reflective film |
| CN112874101A (en) * | 2021-02-18 | 2021-06-01 | 石家庄康岁商贸有限公司 | Reflective warning tape and preparation method thereof |
| CN113500838A (en) * | 2021-07-20 | 2021-10-15 | 常州市日月反光材料有限公司 | High-strength self-cleaning reflective film and preparation method thereof |
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| CN203386446U (en) * | 2013-08-15 | 2014-01-08 | 江苏特森特新材料科技有限公司 | Fluorescent light reflective film |
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| CN112874101A (en) * | 2021-02-18 | 2021-06-01 | 石家庄康岁商贸有限公司 | Reflective warning tape and preparation method thereof |
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| CN113500838A (en) * | 2021-07-20 | 2021-10-15 | 常州市日月反光材料有限公司 | High-strength self-cleaning reflective film and preparation method thereof |
| CN113500838B (en) * | 2021-07-20 | 2022-11-15 | 常州市日月反光材料有限公司 | High-strength self-cleaning reflective film and preparation method thereof |
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Application publication date: 20191213 |