CN1357770A - Light retroreflective material and manufacturing method thereof - Google Patents

Abstract

A light-reflecting material is prepared through mixing the powder with pigment, which is automatically diffused, with diluted resin, coating the designed pattern on the surface of glass bead layer by screen or intaglio plate to form an automatic pigment-diffusing layer, vacuum aluminium plating to form the bottom of reflecting mirror, sticking substrate and stripping the substrate.

Description

Light retroreflective material and manufacturing method thereof

The invention relates to a light retroreflective material and a manufacturing method thereof, in particular to a manufacturing method in which a glass bead-exposed light retroreflective material is added with automatic light-emitting performance of pigments.

The layered structure of the reflective material formed by the common technology is to form a mirror layer directly under the glass bead layer, so that the finished product has a retroreflective phenomenon. The layered structure contains a colored layer, but it must rely on the reflection of light. There will be backlight reflections of different colors when entering. Therefore, the reflective material made by common technology does not have the performance of self-luminescence, and it cannot be seen in the dark if there is no light directly shining on the reflective material. Retroreflection of light is made of fine (Φ25-88μ) glass beads with high refraction value (1.85-2.23ND) as a material, and it is manufactured into a layered structure by means of high temperature and high pressure, coating and electroplating, as shown in Figure 1 As shown, the layered structure at least includes a glass bead layer 8, an arc-shaped mirror layer 5, a bonding resin layer 6, a substrate layer 7, and the like. When the light enters the glass bead 8, the light is transmitted to the bottom of the glass 8, and then passes through the arc-shaped mirror reflection layer 5 at the bottom, and is retroreflected back to the light source according to the same entrance path of the light, so as to warn drivers at night. To avoid hitting pedestrians or obstacles; the light automatically glows in the dark by using a pigment that can repeatedly absorb, store and re-emit light to coat the surface of various materials and make it gradually release in the dark Light up to remind or warn others. Therefore, the two have their own different reflection effects and functions.

The effect produced by combining the retroreflective function of light with the two different reflection principles and functions of the automatic light emission of pigments will greatly enhance the independent functions and scope of use of the two. For example, if a safety vest has the above two functions, the vest can not only reflect very strong reflected light under the illumination of the car lights, but also can clearly see the user wearing the vest in a dark place. Therefore, the safety protection of users can be greatly improved; another example is the fire escape indicator sign in the stairwell of the building. If a product with the above two functions can be used, it can still indicate escape in the dark in the event of a fire and power failure. At the same time, when the firefighters enter the disaster area, they can clearly get instructions under the illumination of the light, which really kills two birds with one stone, and at the same time saves the cost of the user.

Commonly used to combine the two into one, the most convenient way is to paste, sew or print two different materials on some products; some people use the screen printing technology to make the pigment automatically emit light. Printed on the surface of retroreflective material. Its main flaws are:

1. The printing surface is uneven;

2. Easy to fall off and not resistant to abrasion;

3. The surface is not beautiful.

The main purpose of the present invention is to provide a light retroreflective material, by combining the light retroreflective and pattern night automatic light-emitting reflective materials, while producing the retroreflective material, the pigment light-emitting material is packaged Covered in transparent glass beads with high refractive value, in addition to the crystal clear, flat and beautiful surface, it also has multiple functions of abrasion resistance, non-shedding and retroreflection.

Another object of the present invention is to provide a method for manufacturing a reflective material in which a coating of light-emitting pigments is formed in a layered structure of the reflective material. To achieve the purpose of smooth surface, not easy to fall off and wear-resistant.

The object of the present invention is achieved in this way: a light retroreflective material is characterized in that: it includes a glass bead layer with a high refraction value, and the pigment self-luminous layer is attached to a part of the surface of the glass bead layer with a preset pattern In the above, the self-luminescent powder of the pigment is mixed with the adhesive according to the set ratio to form an adhesive self-luminescent pigment, and the specular reflection layer is formed on the surface of the part of the glass bead layer and the surface of the pigment self-luminescent layer , the substrate is pasted on the surface of the specular reflection layer.

The glass bead layer is made of high refraction glass with a reflection value of 1.85-2.23ND. The self-luminous pigment powder is mixed with an adhesive in a ratio of 1:1-1:1.5 to form an adhesive self-luminous pigment.

A method for manufacturing a light retroreflective material, characterized in that it includes the following steps: applying a release treatment on the surface of a base material with a softening layer to form a release layer, and then implanting a glass bead layer into the release layer. On the type layer; the powder of the automatic light-emitting pigment is mixed with the adhesive according to the set ratio to form an adhesive automatic light-emitting pigment, which is coated on the surface of the glass bead layer with a preset pattern to form an automatic pigment. light-emitting layer; forming a reflective mirror surface layer on the surface of the pigment automatic light-emitting layer and glass bead layer with graphics; attaching the composite substrate to the reflective mirror surface layer; and peeling off the substrate to make the release layer and the glass bead layer separated between.

The softening layer is polyethylene material. The glass bead layer is a high refraction glass bead with a reflection value of 1.85-2.23ND. The self-luminous pigment powder is mixed with the adhesive in a ratio of 1:1-1:1.5 to form an adhesive self-luminous pigment. The reflective mirror surface layer is formed by vacuum evaporation aluminum plating or aluminum powder mixed with resin to form coating.

The main advantage of the present invention is not only that the surface is crystal clear, flat and beautiful, but also has multiple functions of abrasion resistance, non-shedding and retroreflection.

Further description will be given below in conjunction with preferred embodiments and accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a layered structure of a commonly used reflective material.

2 is a schematic cross-sectional view of the layered structure of the substrate of the light retroreflective material of the present invention before implanting glass beads.

FIG. 3 is a schematic cross-sectional view of the layered structure of the substrate in FIG. 2 after implanting glass beads.

FIG. 4 is a schematic cross-sectional view of the layered structure of the surface of FIG. 3 with a pigment self-luminescent layer formed on the surface.

FIG. 5 is a schematic cross-sectional view of the layered structure of FIG. 4 in which a reflective mirror surface layer is formed at the bottom and bonded to a substrate.

FIG. 6 is a schematic diagram of peeling off the substrate of the layered structure in FIG. 5 .

Fig. 7 is a schematic cross-sectional view of the layered structure of the light retroreflective material forming the protective layer of the present invention.

Referring to Fig. 2-Fig. 7, the manufacturing method of the present invention comprises the following steps:

(1) A softening layer 2 is formed on the surface of the operation base material 1 to jointly form the work base material of the composite material; in the present embodiment, the operation base material 1 gets a polyester (PET) with a thickness of about 25-100 μ, The softening layer 2 is a polyethylene (PE) film layer with a thickness of about 10-100 μ, and the polyethylene film layer can be formed on the surface of the polyester (PET) by laminating or hot roller lamination, and at the same time On the surface of the softening layer 2, a release layer 3 is formed with an appropriate release agent, as shown in Figure 2, or the release agent is mixed with a polyethylene material, so that the polyethylene film layer has special properties for glass. 8 has the effect of false adhesion; in another embodiment, the release layer 3 can also be coated with a layer of silicon release layer on the surface of the polyethylene film layer.

(2) glass beads 8 are implanted into the working substrate shown in Figure 2; in the present embodiment, after the working substrate is subjected to a temperature of 100-130°C, the diameter is about 25-100 μ, and the reflection Glass beads 8 with a high refraction value of about 1.85-2.23ND are evenly planted on the surface, and then the glass beads 8 are pressed into the set depth by hot roller hot pressing to form a hierarchical structure of semi-finished reflective materials, such as Figure 3 shows. In another embodiment, the glass beads 8 can be heated and pressurized by static electricity or mechanical equalization of the beads, and pressed into the softened polyethylene film layer. The ideal depth is to control the glass beads 8 to be The depth of pressing is 30-45% of the diameter of the glass beads 8 .

(3) Form the sticky self-luminescent pigment 4 with a preset ratio formula, and then apply it on the surface of the glass beads 8 according to the designed pattern; The ratio of 1:1-1:1.5 is mixed with the diluted polyethylene, polyurethane or polypropylene resin to form an adhesive self-luminous pigment 4, and then use the 80-150mesh screen or gravure to paint the designed Patterns, lines, characters, etc. are coated on the surface of the glass 8 to form a pigment self-luminous layer 4, a layered structure as shown in Figure 4;

(4) After that, use vacuum aluminum plating on the surface of the glass beads 8 and the pigment automatic light-emitting layer 4, or use the method of knife coating to mix aluminum powder, pigment, dyestuff, polyethylene, polyurethane or polypropylene, etc. The resin coating is applied to form a specular reflection layer 5; then, the surface of the specular reflection layer 5 that has been processed is coated with a bonding resin 6, and the bonding resin can be polyurethane, polypropylene or epoxy resin, etc., and then Laminate it with the base material 7 to form a layered structure as shown in Figure 5. The base material 7 can be T/C, cotton (Collern), fiber material, polyester and other materials, and then give moderate ripening and drying;

(5) After fully ripening and drying, combine the working substrate layer (that is, including the working substrate 1, softening layer or polyethylene film layer 2 and release layer 3) with the finished product layer (including glass beads 8, pigment automatic light emitting layer 4) , specular reflection layer 5, resin layer 6 and substrate 7) are peeled off, as shown in Figure 6; since the surface of polyethylene film layer 2 has been released, therefore, the working substrate layer can be very easily The finished layer is separated from the release layer 3 and the glass beads 8, and the surface has a front or side light retroreflection with a wide angle and a beautiful pattern that can automatically emit light, and the retroreflective material is easy to produce and low in cost .

The light retroreflective material and its manufacturing method of the present invention can make full use of commonly used printing technology and machine equipment, without adding special devices, so the production cost is low, and the pigment layer has the effect of automatic light emission, so that The reflective material made by this manufacturing method has uniform reflective color and large reflection angle, and even in the dark without a light source, the pattern of the reflective material can automatically emit light to achieve a warning effect. Therefore, the manufacturing method of the present invention The reflective material made can reflect light when there is light, and emit light when there is no light. It is a beautiful, practical and reliable reflective safety material, and the general printing technology and machines can be fully utilized in the manufacturing process. Equipment resources will reduce production costs and increase production speed.

To sum up, the present invention has many excellent features, and solves the lack and inconvenience of common technologies in practice and application, proposes an effective solution, completes a practical and reliable system, has novelty and creativity, and has economic benefits value. After describing the preferred embodiments of the present invention in detail, those skilled in the art can clearly understand that various changes and changes can be made without departing from the spirit of the present application, all of which belong to the protection scope of the present invention.

Claims (8)

1, a kind of light-back reflecting material, it is characterized in that: comprise glass bead layer with high refraction value, pigment is given out light layer automatically with on the default part surface of figure attached to this glass bead layer, the powder of being given out light automatically by pigment mixes with sticker mutually according to preset proportion, formation has the stickability pigment of giving out light automatically, specular layer forms on the part surface of this glass bead layer and this pigment are given out light the surface of layer automatically, and ground fits on this direct reflection laminar surface.

2, light-back reflecting material as claimed in claim 1 is characterized in that: this glass bead layer is that the glass of high refraction value of 1.85-2.23ND is different by reflected value.

3, light-back reflecting material as claimed in claim 1 is characterized in that: the powder that this pigment is given out light automatically, according to 1: 1-1: 1.5 ratio is mixed mutually with sticker, forms to have the adhesive pigment of giving out light automatically.

4, a kind of manufacture method of light-back reflecting material is characterized in that: it comprises following step: impose release processing on the surface of the base material with soften layer, form release layer, replant glass bead layer to this release layer; Powder with pigment is given out light automatically mixes with sticker mutually according to preset proportion, forms to have the adhesive pigment of giving out light automatically, is coated on the surface of this glass bead layer with default figure, forms the pigment layer of giving out light automatically; Form the catoptron surface layer on give out light automatically layer and glass bead layer surface of this pigment with figure; Compound ground is attached to this catoptron surface layer; And peel off this base material, make between this release layer and the glass bead layer and separate.

5, the manufacture method of light-back reflecting material as claimed in claim 4 is characterized in that: this soften layer is a polythene material.

6, the manufacture method of light-back reflecting material as claimed in claim 4 is characterized in that: this glass bead layer is that reflected value is the beaded glass of the high refraction value of 1.85-2.23ND.

7, the manufacture method of light-back reflecting material as claimed in claim 4 is characterized in that: with the powder that pigment is given out light automatically, according to 1: 1-1: 1.5 ratio is mixed mutually with sticker, forms to have the adhesive pigment of giving out light automatically.

8, the manufacture method of light-back reflecting material as claimed in claim 4 is characterized in that: this catoptron surface layer is to steam with vacuum to aluminize or aluminium powder is sneaked into resin and formed with coating method.

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