CN113009607B - Single-color reflective material and manufacturing method thereof - Google Patents
Single-color reflective material and manufacturing method thereof Download PDFInfo
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- CN113009607B CN113009607B CN202011558220.8A CN202011558220A CN113009607B CN 113009607 B CN113009607 B CN 113009607B CN 202011558220 A CN202011558220 A CN 202011558220A CN 113009607 B CN113009607 B CN 113009607B
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The invention relates to the technical field of reflecting materials, and provides a single-color reflecting material and a manufacturing method thereof, aiming at solving the problem that the difference phenomenon of appearance and even reflecting color is caused by uneven thickness of a medium layer when a medium is plated on the surface of a glass microsphere.
Description
Technical Field
The invention relates to the technical field of reflective materials, in particular to a single-color reflective material and a manufacturing method thereof.
Background
In recent years, the application of reflective materials in the fashion field is more and more common, the demand for the reflective materials is more diversified, the traditional reflective materials are plated with media on bead-planted films planted with glass beads to form hemispherical media, the traditional reflective materials are plated with aluminum films more conventionally, and more popular zinc sulfide media in recent years.
Disclosure of Invention
The invention provides a single-color reflecting material and a manufacturing method thereof, aiming at solving the problem that the difference phenomenon of appearance and even reflecting color is caused by uneven thickness of a medium layer when the medium is plated on the surface of glass beads, the thickness of a plating layer is consistent, and the single-color light reflection is realized.
The invention is realized by the following technical scheme: the single-color reflecting material is characterized by comprising a base material, and an adhesive layer, a medium film layer and glass beads which are sequentially arranged, wherein the medium film layer and the adhesive layer are provided with a plurality of concave surfaces, the glass beads are partially arranged in the concave surfaces, and the particle size of the glass beads is 20-120 um.
The preparation method of the single-color reflective material comprises the following steps:
(1) Preparing a dielectric film: evaporating and plating a medium on the release film to prepare a medium film;
the release film comprises one or more of a PE composite film, OPP, PP and PET.
The medium is selected from one or more of zinc sulfide, aluminum oxide, aluminum, magnesium fluoride and silicon oxide. The reflecting color is closely related to the medium, the aluminum-plated film reflects white light, and the zinc sulfide medium film changes the reflecting color along with the change of the thickness.
Preferably, the thickness of the zinc sulfide dielectric film is 400-14000nm, the thickness of the dielectric film is determined by color requirements, the refractive indexes or the thicknesses of the dielectric films are not consistent, and dielectric films with different colors can be prepared. The zinc sulfide sequentially appears yellow, purple, blue, bright yellow, purple red, green, pink and grass green dielectric films along with the accumulation of the evaporation thickness (400-14000 nm), and the evaporation aluminum film is bright silver.
According to the invention, the reflective medium is plated on the flat release film, so that the uniformity of the medium is greatly improved, and the apparent consistency is good; the thickness gradual change effect in the width direction of the medium is utilized to realize the gradual change color light effect; meanwhile, the problem that the glass beads are easy to drop to an evaporation source to form evaporation impurities in the evaporation process of the glass beads in the conventional technology is solved.
(2) Flatly placing glass beads on a plant film after a bonding layer is softened by a bead planting film overheating roller with bonding capacity, wherein the glass beads are settled on the plant film, and after the plant film is cooled, the glass beads are fixed on the plant film;
preferably, the plant membrane comprises one or more of PE composite membrane and PET.
(3) Coating an adhesive on the surface of the dielectric film, drying the dielectric film in a drying channel, and pressing the dielectric film by a hot roller to be compounded with the base material; realized on the dielectric film is transferred to the substrate, avoided at present on glass microballon coating by vaporization in-process glass microballon to drop evaporation source easily, formed the problem of coating by vaporization impurity.
Preferably, the dry glue thickness is greater than 5um.
Preferably, the hot-roll temperature is < 120 ℃ and the pressure applied is from 0.8 to 4.6T.
The base material comprises one of cloth, film and leather.
(4) Peeling the release film, and pressing the medium surface and the bead planting film under pressure after the medium surface and the plant film surface protruded from the glass beads pass through the hot roller;
preferably, the hot roll temperature is from 35 to 150 ℃.
Preferably, the pressure is 0.8-4.6T.
In the pressing process, the adhesive is sunken and deformed, part of the adhesive is bonded with the glass beads to improve the bonding fastness, and in the traditional method, the surface of the glass beads is plated with the medium, so that the adhesive can only be bonded with the medium, and the bonding fastness between the medium and the glass beads is not enough.
(5) And peeling off the bead planting film to obtain the single-color reflecting material.
After a substrate with a dielectric film passes through a hot roller, the dielectric film surface and a bead planting film are pressed under pressure, the dielectric film and an adhesive layer form a concave surface and wrap glass beads, the tiled dielectric film is transferred onto the glass beads and then is in a concentric circle structure, the thickness of the dielectric film layer is consistent, single-color colored light reflection is realized, and the consistency of the reflection color is good; and the medium film wraps the spherical surface of the glass bead, so that the observation angle of color reflection is larger.
Compared with the prior art, the invention has the beneficial effects that:
1. the thickness of the plating layer is consistent, so that the single-color light reflection is realized, and the consistency of the reflection color is good;
2. the medium has colors and reflective colors, and the combination and application of various media can realize the reflective material with the appearance gradually changed and the reflective gradually changed, thereby greatly improving the design fashion effect;
3. the glue is in direct contact with the glass beads, so that the bonding fastness of the glass beads and the adhesive is improved;
drawings
FIG. 1 is a schematic structural diagram of a single-color reflective material according to the present invention;
in the figure, 1: base material, 2: an adhesive layer; 3: medium, membrane layer, 4: glass beads;
FIG. 2 is a graph showing the reflection of light by the single-color reflecting material prepared in example 1;
FIG. 3 shows the reflected light of the single-color reflecting material prepared in example 2;
FIG. 4 shows the reflected light of the single-color reflecting material prepared in example 3;
fig. 5 shows the reflected light of the single-color reflecting material prepared in example 4.
Detailed Description
The present invention is further illustrated by the following figures and examples, wherein the starting materials are commercially available or may be prepared by conventional methods.
Examples
As shown in fig. 1, the single-color reflective material comprises a substrate 1, and an adhesive layer 2, a dielectric film layer 3 and glass beads 4 which are sequentially arranged on the substrate, wherein a plurality of concave surfaces are arranged on the dielectric film layer 3 and the adhesive layer 2, and the glass beads 4 are partially arranged in the concave surfaces.
Preferably, the thickness of the adhesive layer 2 is 5-500um, the thickness of the medium film layer 3 is 400-14000nm, and the particle size of the glass beads is 20-120 um.
Preparation example 1
(1) Preparing a dielectric film: evaporating aluminum on a release film (PE composite film) with the thickness of 100nm to prepare a dielectric film layer 3;
(2) Flatly placing glass beads 4 with the grain diameter of 40 microns on a plant membrane after a bonding layer is softened by a bead planting membrane overheating roller of a PE composite membrane with bonding capacity, wherein the glass beads 4 are settled on the plant membrane, and after the plant membrane is cooled, the glass beads 4 are fixed on the plant membrane;
(3) Coating an adhesive (a polyurethane adhesive and an acrylic adhesive) on the surface 3 of the dielectric film, drying the dielectric film through a drying channel, and compounding the dielectric film with the substrate cloth 1, wherein the thickness of the adhesive layer 2 is 50 microns, and the substrate cloth 1 is compounded through heating at 100 ℃ and applying 2T pressure;
(4) Peeling the release film, and pressing the medium film surface and the plant bead film under the pressure of 1T after the medium film surface and the plant film surface protruded by the glass beads pass through a hot roller at 100 ℃;
(5) And peeling off the bead planting film to obtain the single-color reflecting material.
The single-color reflecting material prepared in preparation example 1 reflected light in white as shown in fig. 2.
Example 2
(1) Preparing a dielectric film: performing evaporation plating of zinc sulfide on a release film (PET film) with the thickness of 800nm to prepare a dielectric film layer 3;
(2) Flatly placing the glass beads 4 with the grain diameter of 80 microns on a plant membrane after a bonding layer is softened by a PET bead planting membrane overheating roller with bonding capacity, settling the glass beads 4 on the plant membrane, and fixing the glass beads 4 on the plant membrane after the plant membrane is cooled;
(3) Coating an adhesive (polyurethane adhesive) on the surface of the dielectric film, drying the dielectric film by a drying channel, and compounding the dielectric film with the base cloth 1, wherein the thickness of the adhesive layer 2 is 100 micrometers, and the base cloth 1 is compounded by applying pressure at 120 ℃ through a hot roller by 1T;
(4) Peeling the release film, and pressing the medium film surface and the plant bead film under the pressure of 1.5T after the medium film surface and the plant film surface protruded by the glass beads pass through a hot roller at 120 ℃;
(5) And peeling the bead planting film to obtain the single-color reflecting material.
The single-color reflecting material prepared in example 2 reflected a purple color as shown in fig. 3.
Example 3
(1) Preparing a dielectric film: evaporating and plating zinc sulfide on a release film (PP) with the thickness of 1200nm to prepare a dielectric film layer 3;
(2) Flatly placing the glass beads 4 with the grain diameter of 80 microns on a plant membrane after a bonding layer is softened by a PET bead planting membrane overheating roller with bonding capacity, settling the glass beads 4 on the plant membrane, and fixing the glass beads 4 on the plant membrane after the plant membrane is cooled;
(3) Coating an adhesive (acrylic adhesive) on the surface of the dielectric film, drying the dielectric film by a drying channel, and compounding the adhesive layer 2 with the substrate film 1 by applying pressure at 50 ℃ through a hot roller and 4T, wherein the thickness of the adhesive layer is 30 micrometers;
(4) Peeling the release film, and pressing the medium surface and the plant bead film under the pressure of 3T after the medium surface and the plant film surface protruded by the glass beads pass through a hot roller at 800 ℃;
(5) And peeling off the bead planting film to obtain the single-color reflecting material.
The single color retroreflective material prepared in example 3 reflected blue light as shown in fig. 4.
Example 4
(1) Preparing a dielectric film: performing evaporation plating of zinc sulfide on a release film (PP) with the thickness of 600nm to prepare a dielectric film layer 3;
(2) Flatly placing the glass beads 4 with the grain diameter of 120um on a plant membrane after a bonding layer is softened by a PET bead planting membrane overheating roller with bonding capacity, settling the glass beads 4 on the plant membrane, and fixing the glass beads 4 on the plant membrane after the plant membrane is cooled;
(3) Coating an adhesive (acrylic adhesive) on the surface of the dielectric film, drying the dielectric film by a drying channel, and compounding the adhesive layer 2 with the substrate film 1 by applying pressure 2T at 50 ℃ through a hot roller, wherein the thickness of the adhesive layer 2 is 50 um;
(4) Peeling the release film, and pressing the medium surface and the plant bead film under the pressure of 4T after the medium surface and the plant film surface protruded by the glass beads pass through a hot roller at 50 ℃;
(5) And peeling the bead planting film to obtain the single-color reflecting material.
The single color retroreflective material prepared in example 4 reflected yellow light as shown in fig. 5.
Comparative example 1
The reflective material is prepared according to the cN 201510061492.X fancy reflective cloth and the preparation method thereof, which are also the conventional reflective cloth preparation methods at present, and the difference lies in that: changing the fancy roller coating in the application into the conventional roller coating;
(1) Implanting glass beads: placing the PE/PET composite film in a hot roller, controlling the temperature to be 140-200 ℃, depositing glass beads on the PE film along with the melting of the PE film, and fixing the glass beads on the PE/PET composite film after the PE film is cooled to realize bead planting;
(2) A focusing layer: coating a coating on the surface of the glass beads to form a focusing layer concentric with the glass beads, and drying the solvent at about 100 ℃ to form a film, wherein the film is called a plant film;
(3) Plating: the plated medium is changed from solid state to gas state by a resistance heating mode, and is sublimated into a plating layer after meeting the bead-planted film, namely the composite reflecting layer is the plated aluminum by evaporation, and the thickness of the plating layer is 100nm;
(4) Roller coating of compound adhesive: a concave roller coating mode is adopted, and the composite light reflecting layer is laid on the composite light reflecting layer in the step (3); drying the solvent in the composite adhesive through an oven; forming a composite adhesive layer;
(5) A base cloth layer: and (4) compounding the fancy composite glue layer obtained in the step (4) with the base cloth, and peeling off the PE/PET film after the composite glue is completely cured to prepare the reflective material.
Comparative example 2
The preparation method is the same as that of comparative example 1, zinc sulfide is evaporated, the thickness is 800nm, and the reflected light is purple.
Comparative example 3
The preparation method is the same as that of comparative example 1, zinc sulfide is evaporated, the thickness is 1200nm, and the reflected light is blue light.
Comparative example 4
The preparation method is the same as that of comparative example 1, zinc sulfide is evaporated, the thickness is 600nm, and the reflected light is yellow light.
Test example
Retroreflective coefficients of examples 1-4, comparative examples 1-4 were measured on retroreflective material using a 932 retroreflectivity instrument, and the international universal retroreflective coefficient expressed in units of: cd/lx/m2, the physical meaning of which is: the results of the luminance values produced per unit area of retroreflective material under a certain geometry and per unit illumination are shown in table 1.
Table 1:
| 5 degree 12' coefficient of retroreflection | White light | Purple light | Blue light | Yellow light |
| Comparative example | 420-490 | 15-20 | 7-10 | 20-25 |
| The embodiments of the present application | 410-430 | 38-43 | 30-34 | 50-53 |
As can be seen from FIGS. 2-5, the single-color reflective material prepared by the method has good reflective color consistency. Larger values in table 1 indicate higher reflected light intensity and thus. The single-color reflecting material prepared by the application has higher reflecting strength.
Claims (9)
1. The preparation method of the single-color reflective material comprises a base material, and an adhesive layer, a medium film layer and glass beads which are sequentially arranged on the base material, wherein a plurality of concave surfaces are arranged on the medium film layer and the adhesive layer, the glass beads are partially arranged in the concave surfaces, and the particle size of the glass beads is 20-120 um, and is characterized by comprising the following steps:
(1) Preparing a dielectric film: evaporating and plating a medium on the release film to prepare a medium film;
(2) Flatly placing glass beads on the plant film after the bonding layer is softened by a bead planting film overheating roller with bonding capacity, depositing the glass beads on the plant film, and fixing the glass beads on the plant film after the plant film is cooled;
(3) Coating an adhesive on the surface of the dielectric film, drying the dielectric film in a drying channel, and pressing the dielectric film by a hot roller to be compounded with the base material;
(4) Peeling the release film, and pressing the medium surface and the plant bead film under temperature and pressure after the medium surface and the plant film surface protruded by the glass beads pass through a hot roller;
(5) And peeling off the bead planting film to obtain the single-color reflecting material.
2. The method for preparing a single-color reflective material according to claim 1, wherein the release film in step (1) comprises one or more of a PE composite film, OPP, PP and PET.
3. The method for preparing a single-color reflective material according to claim 1, wherein the medium in step (1) is one or more selected from zinc sulfide, aluminum oxide, aluminum, ag, magnesium fluoride and silicon oxide.
4. The method for preparing a single-color reflective material according to claim 1, wherein the plant film in step (2) comprises one or more of a PE composite film and a PET pressure sensitive adhesive.
5. The method for preparing a single-color reflective material according to claim 1, wherein the thickness of the dry glue in the step (3) is greater than 5um.
6. The method of claim 1, wherein the hot roll temperature in step (3) is less than 150 ℃ and the pressure is applied at a pressure of 0.8 to 4.6T press.
7. The method for preparing a single-color reflective material according to claim 1, wherein the base material in step (3) comprises one of cloth, film and leather.
8. The method for preparing a single-color reflecting material according to claim 1, wherein the temperature of the hot roller in the step (4) is 35-150 ℃.
9. The method for preparing a single-color reflecting material according to claim 1, wherein the pressure in the step (4) is 0.8-4.6T.
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| CN102490510B (en) * | 2011-12-01 | 2014-01-22 | 宁波长阳科技有限公司 | Polyester reflective membrane for jet printing and preparation method thereof |
| CN106707388A (en) * | 2017-03-23 | 2017-05-24 | 浙江海川安全防护用品有限公司 | Colorful high-brightness hot-sticking reflective cloth and manufacturing process |
| CN106707387A (en) * | 2017-03-23 | 2017-05-24 | 浙江海川安全防护用品有限公司 | Colorful high-brightness hot-sticking reflective cloth and manufacturing process |
| CN107526125A (en) * | 2017-10-13 | 2017-12-29 | 四川金英科技有限责任公司 | A kind of reflective storage light film of microballon exposed type colorful and its manufacturing process |
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Address after: 311100 Fenghuang Mountain, Caoqiao Village, Jingshan Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Xinghua New Materials Group Co.,Ltd. Address before: 311116 Phoenix Mountain, Caoqiao Village, Jingshan Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU CHINASTARS REFLECTIVE MATERIAL Co.,Ltd. |
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