Small glass globe type retroreflection sheet

A retroreflective and glass ball technology, applied in optics, instruments, optical components, etc., can solve problems such as poor color rendering, and achieve the effect of maintaining integrity, excellent flexibility, and good color rendering performance

Active Publication Date: 2013-01-30
NIPPON CARBIDE INDS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the retroreflective sheeting described in Patent Document 1, the sandwich layer sandwiching a plurality of glass bulbs is made of a light-transmitting colored resin, so the color rendering property may be poor.
F...

Method used

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  • Small glass globe type retroreflection sheet

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the micro glass sphere retroreflective sheeting of the present invention sequentially includes a surface protection layer 1, a clamping layer 3, a focus forming layer 6, a specular reflection layer 7, an adhesive layer 8, and a protective paper 9 along the incident direction of light; A colored layer 4 is arranged between the clamping layer 3 and the focus forming layer 6, and the colored layer 4 is embedded with glass balls 5. The top of the glass ball 5 is located in the clamping layer 3, and the bottom is located in the focus forming layer 6. The colored layer 4 Located below the center of the glass ball 5, close to the focus forming layer 6 side, the thickness of the colored layer 4 is 1-10% of the diameter of the glass ball 5; the particle size of the glass ball 5 is 10-150 μm, and the filling rate is 60-90%, when the colored lay...

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Abstract

The invention discloses a small glass globe type retroreflection sheet. Retroreflection sheets in prior art are poor in color rendering, and the retroreflection sheet sequentially comprises a surface protection layer, a printing layer, a clamping layer, a focus point forming layer, a specular layer, an adhesive layer and protection paper from an incidence direction of light; and a glass globe is arranged between the clamping layer and the focus point forming layer, a coloring layer is arranged at the position between the clamping layer and the focus point forming layer, and the position is free of the glass globe. According to the small glass globe type retroreflection sheet, the color rendering performance is good, the coloring layer can be deformed by moving powder bodies, unity is kept, and simultaneously, excellent flexibility is achieved.

Description

technical field [0001] The invention relates to a retroreflective sheet, in particular to a tiny glass ball type retroreflective sheet. Background technique [0002] Retroreflective sheeting is widely used in traffic signs, vehicle license plates, certification labels, or retroreflective RFID (radio wave identification) labels due to its excellent nighttime visibility. As this type of retroreflective sheeting, there are well-known retroreflective sheetings of microscopic glass sphere type, and retroreflective sheetings with colors such as white and red. [0003] Japanese Laid-Open Patent Publication No. 27-34488 (Patent Document 1) describes such a microsphere-type retroreflective sheeting. The retroreflective sheeting described in this patent document contains many tiny glass spheres between the clamping layer and the focus forming layer. It is described that the sandwiching layer is formed of colored resin. That is, the sandwich layer that is located on the light incide...

Claims

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Application Information

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IPC IPC(8): G02B5/128B32B7/02B32B5/16
Inventor 山岸哲史三宅弘
Owner NIPPON CARBIDE INDS HANGZHOU
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