Lens embedment type reflective film and bead embedding process thereof

A reflective film and bead planting technology, applied in optics, optical components, coatings, etc., can solve the problems of glass microbeads and other problems, and achieve the effects of good retroreflection performance, low production cost, and convenient and simple operation.

Inactive Publication Date: 2015-07-08
SICHUAN ZHONGKE BETTER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, and provide a lens-embedded reflective film and its bead planting process with convenient operation, easy appearance control, excellent retroreflective performance and relatively low cost. Through this bead planting process, It can avoid the generation of floating beads in the planting beads, and at the same time overcome the technical problem of one-time packaging of glass beads

Method used

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  • Lens embedment type reflective film and bead embedding process thereof
  • Lens embedment type reflective film and bead embedding process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Shown, a kind of lens embedding type reflective film, it comprises facial film 1, planting bead layer 2, aluminized layer 4, adhesive back layer 5 and backing paper 6, be coated with planting bead layer 2 on the surface of film film 1, planting bead layer An aluminum-plated layer 4 is arranged between the layer 2 and the adhesive layer 5, and a backing paper 6 is arranged below the adhesive layer 5, which also includes glass microspheres 3 and a focusing layer 7, and the glass microspheres 3 are embedded inside the bead-planting layer 2, A focusing layer 7 is also provided between the bead-planting layer 2 and the aluminum-coated layer 4 , the particle diameter of the glass microspheres 3 ranges from 15 μm to 115 μm, and the particle diameter difference of the glass microspheres 3 is 5 μm to 15 μm.

[0028] Such as figure 2 As shown, the distance b at which the lower surface of the glass microsphere 3 sinks into the surface of the bead-planting layer ...

Embodiment 2

[0038] Its structure is with embodiment 1.

[0039] A bead planting process of a lens-embedded reflective film, which comprises the following steps:

[0040] S1. Screening glass microbeads 3: selecting glass microbeads 3 with a refractive index of 2.05, an average particle diameter of 65 μm, and a particle diameter difference of 10 μm;

[0041] S2, uniform mixing: mix the bead-planting resin and the glass beads 3 obtained in step S1 evenly, and the solid content of the resin and the glass beads are in a weight ratio of 1:4;

[0042] S3, bead planting: set the bead planting gap on the scraper coater, the gap is 135 μm, evenly coat the bead planting resin and glass microsphere 3 mixture obtained in step S2 on the mask 1, and the glass microbeads 3 fall into the bead planting The distance b on the surface of layer 2 is 3 μm, and it is baked and cured at a temperature of 105 ° C through an oven;

[0043] S4. Coating the focusing layer 7: after the bead-planting resin is dried, a...

Embodiment 3

[0048] Its structure is with embodiment 1.

[0049] A bead planting process of a lens-embedded reflective film, which comprises the following steps:

[0050] S1. Screening glass microbeads 3: selecting glass microbeads 3 with a refractive index of 1.98, an average particle diameter of 15 μm, and a particle diameter difference of 5 μm;

[0051] S2, uniform mixing: mix the bead-planting resin and the glass beads 3 obtained in step S1 evenly, and the solid content of the resin and the glass beads are in a weight ratio of 1:1;

[0052] S3, bead planting: set the bead planting gap on the scraper coater, the gap is 30 μm, evenly coat the bead planting resin and glass microsphere 3 mixture obtained in step S2 on the mask 1, and the glass microspheres 3 fall into the bead planting The distance b on the surface of layer 2 is 5 μm, and it is baked and solidified at a temperature of 130 ° C through an oven;

[0053] S4. Coating the focusing layer 7: after the bead-planting resin is dried...

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Abstract

The invention relates to a lens embedment type reflective film which comprises a facial film (1), a bead embedding layer (2), an aluminum plating layer (4), a backing glue layer (5) and backing paper (6). The lens embedment type reflective film further comprises glass microbeads (3) and a focusing layer (7), wherein the glass microbeads (3) are embedded in the bead embedding layer (2), the focusing layer (7) is further arranged between the bead embedding layer (2) and the aluminum plating layer (4), the range of the distance b of lower surfaces of the glass microbeads (3) embedded into the surface of the bead embedding layer (2) is 0.5 micrometer-5 micrometers. A bead embedding process comprises the following steps of S1, screening of the glass microbeads (3); S2, uniform mixing; S3, bead embedding; S4, coating of the focusing layer (7); S5, aluminum plating; and S6, final molding. The lens embedment type reflective film and the bead embedding process have the advantages that operation is convenient, appearance control is easy to achieve, retroreflection performance is excellent, and cost is relatively low; and through the bead embedding process, floating beads can be prevented from being produced in embedding beads, and meanwhile the technical problem of difficult one-time wrapping of the glass microbeads is overcome.

Description

technical field [0001] The invention relates to the technical field of reflective film production, in particular to a lens-embedded reflective film and a bead planting process thereof. Background technique [0002] The reflective film is a novel reflective material formed by combining the reflective layer formed by glass beads and polymer materials by a special process. At present, there are three popular methods of planting beads on lens-embedded reflective film. One is to roll-coat a thin resin with adhesive properties on the mask, and then attach high-refractive-index glass beads to the mask after drying. , and then fill the gaps between the glass beads with resin, and then coat a layer of resin to wrap the glass beads to form a focusing layer; one is to coat a thicker resin on the surface layer, and after drying, adhere to the glass beads, Embed most of the glass beads (50% to 85% of the diameter) in the resin, and then coat a layer of resin to wrap the glass beads to f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/128B32B17/06B32B27/06B05D1/38
Inventor 任旭林李本都罗荣祥
Owner SICHUAN ZHONGKE BETTER TECH
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