CN102096132A - Reflective article and manufacturing method thereof - Google Patents

Abstract

The present invention discloses a reflective article and a manufacturing method thereof. The reflective article comprises the following layered structures in order: an adhesive layer embedded with an optical element; a colored layer; and a reflective layer; the colored layer does not contact the optical element; the present invention also relates to the manufacturing method of the aforementioned reflective article. The optical element of the present invention is embedded in the adhesive layer, and the adhesive layer is formed into a flat surface, so that a flat layered structure can be achieved by using a small amount of adhesive and ink. In this way, the reflective article of the present invention can have a thinner colored layer, so that the inner reflective layer has better light transmission and reflective effects, so that the reflective effect of the finished product is better than that of the traditional reflective article.

Description

Reflective article and manufacturing method thereof

technical field

The invention relates to a reflective object and its manufacturing method.

Background technique

With the progress of the times, reflective objects have developed materials that are resistant to cleaning, and there have been many changes in color and pattern; general reflective objects are used for clothing, vests, hats, shoes or the exterior of vehicles to provide pedestrians and traffic. Or in traffic safety, or as large advertising signs, posters or traffic signs, etc., through reflective objects to achieve warning or reminder.

In the known manufacturing technology of reflective objects, the adhesive layer and the colored layer are usually prepared at the same time, that is, the adhesive and the ink are pre-mixed, and then coated on the substrate to form a layered structure, and then Optical elements and reflective layers are formed sequentially. In order to achieve the flatness of the layered structure of the reflective objects produced in such a manufacturing process, a relatively large amount of adhesive and ink must be used to fill the optical elements (mostly The uneven surface of the spherical structure, such as glass beads), the amount of ink used is mostly more than 30g/ ^m2 . And the light reflection effect is poor, which reduces the reflection effect of reflective objects.

There is also another known manufacturing method for reflective objects, which is to separate the adhesive layer from the colored layer. First, an adhesive layer embedded with optical elements is formed. This adhesive is used to fix the aforementioned optical elements. Components, the discharge of this optical component is exposed, which means that only part of it is embedded in the adhesive, and then, a colored layer is formed on the other surface of the optical component that is not covered with the adhesive, and the In such a manufacturing method, because the contact surface between the optical element (mostly a spherical structure, such as glass beads) and the ink is not a plane but a surface with many spherical protrusions, a relatively large amount of ink must be used in the manufacturing process. Make the colored layer form a uniform and flat surface, but this method will cover the reflective layer of the inner layer due to the large amount of ink used, making it poor in light transmission and light reflection, and reducing the reflective effect of reflective objects.

The present invention aims to embed the entire optical element in the adhesive layer by adjusting the manufacturing method of the reflective object, and first use the adhesive layer to fill the optical element to form a plane, so that the colored layer (ink) on the surface ) can achieve a uniform and flat layered structure with a small amount of use, which is expected to reduce the covering of the reflective layer and increase the reflective effect of reflective objects.

Contents of the invention

In view of the lack of prior art, the main purpose of the present invention is to provide a reflective object, the optical element is embedded in the adhesive layer without contacting the aforementioned optical element, and because the aforementioned optical element is embedded in the adhesive layer as a whole, Therefore, the adhesive layer has a flat surface, so the colored layer can be thinned on the surface of the aforementioned adhesive layer to form a uniform and flat thin layer, thereby achieving a better reflective effect.

Another object of the present invention is to provide a reflective object, which further includes a substrate (comprising a release layer and a release layer carrier) in addition to the features of the aforementioned reflective object, in addition to being used as an optical element layout The substrate can also be used as a removable protective structure (i.e. a release substrate) for the finished product, so that the unused surface of the reflective article of the present invention can be protected and maintain the original reflective performance.

Another object of the present invention is to provide a method of manufacturing a reflective object, by embedding optical elements in the adhesive layer and forming the adhesive layer into a plane, so that the colored layer can be used in a small amount. It can reduce the covering of the reflective layer for a flat surface, so that the finished product has a better reflective effect.

Another object of the present invention is to provide a reflective object, and the reflective object of the present invention is attached to the above-mentioned reflective object, so as to achieve the purpose of use in various fields.

To achieve the above object, the present invention provides a reflective article, which comprises the following layered structure in sequence: an adhesive layer embedded with optical elements; a colored layer; and a reflective layer; the aforementioned colored layer is not in contact with the optical elements .

The present invention further provides a reflective article, which sequentially comprises the following layered structure: a substrate; an adhesive layer embedded with optical elements; a colored layer; and a reflective layer; the colored layer is not in contact with the aforementioned optical elements touch.

Preferably, the aforementioned reflective object may further include an adhesive layer, which is located on the surface of the aforementioned reflective layer, for being attached to the surface of the object.

The present invention further provides a method for manufacturing a reflective object, which includes:

Take a substrate;

placing an optical element on the surface of the substrate;

wrapping an adhesive on the optical element to form an adhesive layer embedded with the optical element;

forming a colored layer on the surface of the adhesive layer;

forming a reflective layer on the surface of the aforementioned colored layer;

The colored layer is not in contact with the optical element.

The present invention further provides a reflective object comprising the reflective object of the present invention.

Preferably, the material of the reflective object includes cloth, plastic, wood, metal or stone.

Preferably, the aforementioned method can further form an attachment layer on the surface of the aforementioned reflective layer. Preferably, the aforementioned attachment layer is made of monomers: methyl urethane, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid, olefin, vinyl chloride, amide, alkyd or a combination thereof The polymer formed is preferably polyurethane (PU glue).

Preferably, the aforementioned substrate includes a release layer and a release layer carrier, wherein the aforementioned release layer is located between the aforementioned release layer carrier and the aforementioned adhesive layer. Preferably, the release layer is made of polyethylene, polypropylene, polybutene, polyvinyl chloride, polyester or a combination thereof. Preferably, the aforementioned release layer carrier system is made of polyethylene terephthalate (poly(ethylene terephthalate), PET).

Preferably, the aforementioned adhesive layer is made of monomers: methyl urethane, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid, olefin, vinyl chloride, amide, alkyd or a combination thereof formed by the polymer.

Preferably, the aforementioned optical elements are made of glass, ceramics or synthetic resin.

Preferably, the aforementioned colored layer is made of polymer, ink or silane coupling agent.

Preferably, the reflective layer is made of metal or pearlescent material. Preferably, the aforementioned metals are made of aluminum, silver, tin or a combination thereof.

Preferably, the way of the aforementioned step (b) adhesive covering the aforementioned optical element includes coating, bonding, chemical deposition, embossing or inkjet.

As mentioned above, in the manufacturing method of the present invention, by embedding the optical element in the adhesive layer and forming the adhesive layer into a flat surface, a small amount of adhesive and ink can be used to achieve flatness layered structure, so that the reflective article of the present invention has a thinner colored layer, so that the reflective layer in the inner layer has better light transmission and reflection effects, so that the reflective effect of the finished product is better than that of traditional reflective articles. good.

Description of drawings

Figure 1 shows a schematic view of the layered structure of the reflective article of the present invention;

Figure 2 shows a schematic view of the layered structure of the reflective article with the substrate of the present invention;

Fig. 3 shows an embodiment of the reflective object of the present invention.

Description of main component symbols:

1 adhesive layer

2 Optical components

3 colored layers

4 reflective layer

5 Attachment layer

6 Substrate

61 release layer

62 release layer carrier

10 reflective objects

11 reflective objects

12 reflective objects

Detailed ways

The layered structure of the reflective article 10 of the present invention can refer to FIG. 1, which comprises the following layered structure in sequence: an adhesive layer 1 embedded with an optical element 2; a colored layer 3; and a reflective layer 4; the colored layer Layer 3 is not in contact with said optical element 2 .

The layered structure of another reflective object 11 of the present invention can refer to Fig. 2, and it comprises the following layered structure in order: a substrate 6; an adhesive layer 1 embedded with optical elements 2; a colored layer 3; and A reflective layer 4 ; the colored layer 3 is not in contact with the optical element 2 . The substrate 6 includes a release layer 61 and a release layer carrier 62 .

The manufacturing method of the reflective object 11 of the present invention, the finished product can refer to Fig. 2, and this method comprises:

(a) get a substrate 6;

(b) an optical element 2 is placed on the surface of the aforementioned substrate 6;

(c) covering the aforementioned optical element 2 with an adhesive 1 to form a mixture layer 1 embedded with the optical element 2;

(d) forming a colored layer 3 on the surface of the adhesive layer 1;

(e) forming a reflective layer 4 on the surface of the aforementioned colored layer 3;

Wherein, the aforementioned colored layer 3 is not in contact with the aforementioned optical element 2 .

The retroreflective object 10 or 11 of the present invention may further comprise an adhesive layer 5, and the manufacturing method of the present invention may further form an adhesive layer 5 on the surface of the aforementioned reflective layer 4, and this adhesive layer 5 is used to attach the aforementioned reflective object 10 or 11 is attached on the object, so as to reach the usefulness of various fields. The aforementioned attachment layer 5 is made of polyurethane (PU glue).

A specific implementation of the reflective object of the present invention can be referred to FIG. 3 , which attaches the reflective object 10 of the present invention to a vest 12 so that the vest has a reflective effect. The reflective object 10 or 11 of the present invention can be attached to any kind of material surface by the adhesive layer 5, that is, the material of the reflective object 12 of the present invention can be, but not limited to: cloth, plastic, wood, metal or stone; In a preferred embodiment, the aforementioned material is cloth.

In the reflective article 11 of the present invention, the aforementioned substrate 6 includes a release layer 61 and a release layer carrier 62, wherein the aforementioned release layer 61 is located between the aforementioned release layer carrier 62 and the aforementioned adhesive layer 1; wherein the aforementioned substrate 6 is used to provide a substrate for laying out the optical element 2 during the manufacturing process, so that the optical element 2 can be attached to the substrate 6, and then further coated with adhesive to form a flat surface of the adhesive layer 1 and thereby fixed Optical element 2. In the reflective article 11 of the present invention, the release layer carrier 62 also provides the effect of protecting the adhesive layer 1 and the optical element 2, so that the surface of the finished product is not corroded and worn by external substances, and maintains its good reflective effect; The material of the type layer carrier 62 is, for example, but not limited to: polyethylene terephthalate (poly(ethylene terephthalate), PET). The release layer 61 of the present invention is used to separate the release layer carrier 62 and the adhesive layer 1. The release layer 61 is made of, for example, but not limited to: polyethylene, polypropylene, polybutylene, polyvinyl chloride, Polyester or combinations thereof, in a preferred embodiment, polyethylene.

The adhesive layer 1 of the present invention is used to fix and support the optical element 2; it can be monomers: methyl carbamate, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid, olefin, chlorine Polymers formed of ethylene, amides, alkyds or combinations thereof.

The optical element 2 of the present invention is used as light refraction, preferably has a high refractive index transparent sphere, such as, but not limited to: glass, ceramics or synthetic resin; in a preferred embodiment, it is made of glass beads; the aforementioned The particle size of the glass beads is preferably 170-400 mesh; and the glass beads whose refractive index is above 1.925.

The material of the colored layer 3 of the present invention can absorb light of a specific wavelength, so that the colored layer 3 has a single color or more than one color. The constituent materials of the colored layer are, for example, but not limited to: polymer, ink or silane coupling agent; in a preferred embodiment, it is made of ink; and the amount of the colored layer of the present invention is 5-12g/m ² ; In a preferred embodiment, the usage amount is 10g/m ² .

The reflective layer 4 of the present invention can reflect incident light and make it re-enter the optical element. Its composition is, for example, but not limited to: metal or pearlescent material; wherein the aforementioned metal system is made of aluminum, silver, tin or a combination thereof; in preferred In one embodiment, it is composed of aluminum.

In the manufacturing method of the present invention, the method of step (b) adhesive coating the aforementioned optical elements includes coating, bonding, chemical deposition, embossing or inkjet; The adhesive covers the aforementioned optical elements.

In the present invention, the colored layer is formed on the surface of the aforementioned adhesive layer by screen printing, inkjet or concave-convex plate; in a preferred embodiment, the aforementioned colored layer is formed on the surface of the aforementioned adhesive by means of inkjet surface.

Embodiment 1: Prepare the reflective article of the present invention

The green reflective object of this embodiment is made through the following steps:

(a) get a PET layer;

(b) attaching a polyethylene (PE) layer to the surface of the aforementioned PET layer by heating;

(c) distributing a glass bead on the aforementioned PE layer, wherein the aforementioned glass bead has a particle size of 170-230 mesh;

(d) coating an adhesive on the surface of the aforementioned PE layer where the glass beads are arranged, and making the adhesive completely cover the aforementioned glass beads to form a plane;

(e) forming a colored layer on the surface of the aforementioned adhesive layer with a green ink in an inkjet manner, and the ink consumption is about 10g/m ² ; and

(f) forming a layer of aluminum on the surface of the colored layer by vacuum aluminum plating.

Refer to FIG. 2 for the structure of the reflective article prepared in this embodiment. The following examples are all prepared using the same manufacturing method as in Example 1, and the standard value of silver reflective performance is used as the standard value of silver, monochrome or color for comparison.

In the following tests, single-color (including silver, purple, brown, pink and green) reflective objects are tested with an area of 9cm ² (3cmx3cm) for each measurement, while multi-color reflective objects are tested with an area of 100cm ² (10cmx10cm) Measure the area to be tested.

Embodiment 2: Reflective performance test of silver reflective object of the present invention

In this example, a silver reflective object is used for reflective performance testing. The preparation method is only different from that of the green reflective object in Example 1, and the other parts are the same. The silver reflective object can be produced without using any ink.

In this test, the above-mentioned silver reflective object was used for the reflective performance test. It passed the retroreflective performance test of the Swiss General Certification Group (SGS) (Taiwan commissioned Taiwan Inspection Technology Company). The results are as follows:

Table 1, the reflective performance test result table of the silver reflective object of the present invention

From the results in Table 1, it can be seen that the silver reflective object of the present invention is no matter when the observation angle is 12', 20', 1° or 1°30', and the light incident angle is 5°, 20°, 30° or 40° It is significantly higher than the standard value, showing that the silver reflective object of the present invention has excellent reflective effect.

Embodiment 3: Reflective performance test of colored reflective objects of the present invention

The colored reflective article of this embodiment is manufactured by the same manufacturing method as that of Embodiment 1, except that the colored layer is made of colored ink, and the other manufacturing processes are the same. Get the color reflective object of the present invention to do reflective performance test, it system passes through the reflective performance test of Swiss General Certification Group (SGS), its result is as follows:

Table 2, the reflective performance test result table of the colored reflective object of the present invention:

From the results in Table 2, it can be seen that the color reflective object of the present invention is no matter when the observation angle is 12', 20', 1° or 1°30', and the light incident angle is 5°, 20°, 30° or 40°. Obviously higher than the silver standard value, it shows that the colored reflective object of the present invention has a good reflective effect.

Embodiment 4: Reflective performance test of the monochrome reflective object of the present invention

The monochromatic reflective article of this embodiment is produced by the same manufacturing method as that of Embodiment 1, except that the colored layer is made of various inks of a single color, and the particle size of the glass beads is different, and other parts are the same. The reflective properties of the prepared reflective objects are tested; Table 3 shows the reflective properties of monochromatic reflective objects with glass bead diameters from 170 to 230 mesh, and Table 4 shows the reflective performance of monochromatic reflective objects with glass bead diameters from 350 to 400 mesh. Test; this test was conducted by the Automobile Test and Research Center (hereinafter referred to as ARTC), the results of which are shown in the following tables:

Table 3, the reflective performance test result table of the monochrome reflective object of the present invention

Table 4, the reflective performance test result table of the monochrome reflective object of the present invention

From the results of Table 3 and Table 4, it can be known that the monochrome reflective object of the present invention, regardless of the size of the glass bead particle size, is 12', 20', 1° or 1°30' at the observation angle, and the light incident angle is 5°, At 20°, 30° or 40°, they are all significantly higher than the silver standard value, showing that the monochrome reflective article of the present invention has a good reflective effect.

Embodiment 5: Reflective performance test of the monochrome reflective object of the present invention after different treatments

In this example, the above-mentioned green and silver reflective objects were treated differently, and then their reflective properties were tested. The results are shown in Table 5, where the standard value is the lowest standard value of the reflective performance of the silver reflective objects after various treatments:

Table 5. Test results of reflective properties of monochrome reflective objects of the present invention after various treatments

From the results in Table 5 above, it can be seen that no matter after abrasion, deflection, cold treatment, temperature change treatment, rainfall treatment, water washing or dry cleaning, etc., the green reflective article and silver reflective article of the present invention can pass the minimum standard value and achieve good reflective performance.

In summary, the present invention adjusts the manufacturing process, embeds the optical element in the adhesive layer, uses the adhesive layer to fill the optical element to form a plane, and makes the colored layer on the surface less The usage amount can achieve a uniform and flat layered structure. Because the colored layer is thinner, the reflective layer in the inner layer has better light transmission and reflective effects, and the finished product has better reflective effect. In addition, according to the test results of the reflective performance of the silver, monochrome or colored light produced by the present invention, it can be seen that the reflective object of the present invention has a good reflective effect.

Other implementations

All the features disclosed in this specification may be combined with other methods, and each feature disclosed in this specification may be selectively replaced by features with the same, equivalent or similar purpose. Therefore, except for particularly prominent features All the features disclosed in this specification are only examples of equivalent or similar features.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any skilled person can make various changes and modifications without departing from the spirit and scope of the present invention.

Claims (26)

1. A reflective article comprising the following layered structures in sequence: an adhesive layer embedded with optical elements; a colored layer; and a reflective layer; It is characterized in that: the colored layer is not in contact with the optical element. 2. A reflective article comprising the following layered structures in sequence: a substrate; an adhesive layer embedded with optical elements; a colored layer; and a reflective layer; It is characterized in that: the colored layer is not in contact with the optical element. 3. The object according to claim 1 or 2, further comprising an adhesive layer, which is located on the surface of the reflective layer and is used for attaching to the surface of the object. 4. The object as claimed in claim 3, wherein said sticking layer is composed of monomers: methyl urethane, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid, Polymers formed from olefins, vinyl chloride, amides, alkyds, or combinations thereof. 5. The object as claimed in claim 2, wherein said substrate comprises a release layer and a release layer carrier, wherein said release layer is located between said release layer carrier and said release layer carrier between adhesive layers. 6. The article according to claim 5, wherein the release layer is made of polyethylene, polypropylene, polybutene, polyvinyl chloride, polyester or a combination thereof. 7. The article according to claim 5, wherein the release layer carrier system is made of polyethylene terephthalate. 8. The article according to claim 1 or 2, wherein the adhesive layer is composed of monomers: methyl urethane, ester, ether, epoxy, urea, carbonate, acrylate , acrylic acid, olefin, vinyl chloride, amide, alkyd or a combination thereof. 9. The object according to claim 1 or 2, wherein said optical element is made of glass, ceramic or synthetic resin. 10. The article according to claim 1 or 2, wherein the colored layer is made of polymer, ink or silane coupling agent. 11. The article according to claim 1 or 2, wherein the reflective layer is made of metal or pearlescent material. 12. The article as claimed in claim 11, wherein the metal is composed of aluminum, silver, tin or a combination thereof. 13. A method of manufacturing a reflective object, comprising: (a) take a substrate; (b) placing an optical element on the surface of said substrate; (c) coating the optical element with an adhesive to form an adhesive layer embedded with the optical element; (d) forming a colored layer on the surface of the adhesive layer; (e) forming a reflective layer on the surface of the colored layer; It is characterized in that: the colored layer is not in contact with the optical element. 14. The method of claim 13, further comprising forming an adhesive layer on the surface of the reflective layer. 15. The method according to claim 14, wherein said sticking layer is composed of monomers: methyl carbamate, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid, olefin , vinyl chloride, amides, alkyds, or combinations thereof. 16. The method according to claim 13, wherein the base material comprises a release layer and a release layer carrier, wherein the release layer is located between the release layer carrier and the release layer carrier. between adhesive layers. 17. The method according to claim 16, wherein the release layer is made of polyethylene, polypropylene, polybutene, polyvinyl chloride, polyester or a combination thereof. 18. The method according to claim 16, characterized in that, the release layer carrier system is made of polyethylene terephthalate. 19. The method according to claim 13, characterized in that, the method of the step (b) adhesive covering the optical element comprises coating, bonding, chemical deposition, embossing or inkjet . 20. The method according to claim 13, wherein the adhesive layer is composed of monomers: methyl urethane, ester, ether, epoxy, urea, carbonate, acrylate, acrylic acid , olefins, vinyl chloride, amides, alkyds or polymers formed by their combinations. 21. The method of claim 13, wherein the optical element is made of glass, ceramic or synthetic resin. 22. The method of claim 13, wherein the colored layer is made of polymer, ink or silane coupling agent. 23. The method according to claim 13, wherein the reflective layer is made of metal or pearlescent material. 24. The method of claim 13, wherein said metal consists of aluminum, silver, tin or combinations thereof. 25. A reflective article comprising the reflective article according to claim 1 or 2. 26. The reflective object according to claim 25, wherein the material comprises cloth, plastic, wood, metal or stone.

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