Fluorescigenic pavement reflecting adhesive tape and manufacturing method thereof

Abstract

The invention relates to a fluorescigenic pavement reflecting adhesive tape and a manufacturing method thereof. The fluorescigenic pavement reflecting adhesive tape is manufactured by adding a reflecting coating or adding various flourescent materials (such as rare earth ion-activated zinc sulfide fluorescence powder) in an amount which is 0.1 to 5 weight percent based on the total amount of the reflecting coating and a substrate into the reflecting coating or the reflecting coating and substrate of any of various conventional pavement reflecting adhesive tapes. The pavement reflecting adhesive tap is comprised of the fluorescigenic reflecting coating, the substrate and a pressure sensitive adhesive, wherein the fluorescigenic reflecting coating is coated on the front side (upper side) of the substrate; and the pressure sensitive adhesive is applied on the back side (down side) of the substrate. The novel pavement reflecting adhesive tape retains the various kinds of performance of the conventional pavement reflecting adhesive tapes, particularly retroreflection (namely reflection) performance. The novel pavement reflecting adhesive tape can also emit fluorescence of certain intensity. When used as pavement traffic marking lines or other marks, the novel pavement reflecting adhesive tape is more striking and can be clearly seen easily by drivers, so that the drivers can drive more safely at night.

Description

technical field [0001] The present invention relates to a road surface reflective adhesive tape capable of emitting fluorescence and a manufacturing method thereof. Specifically, the road surface reflective adhesive tape not only has the same retroreflection performance as the existing road surface reflective adhesive tape (that is, reflective performance), but also can emit fluorescence, so it is more eye-catching in the dark, so that the driver can see more clearly. technical background [0002] Many pavement markers with retroreflective properties (that is, reflective properties) are widely used on roads (especially highways), urban roads, airports, docks, parking lots and squares, such as reflective paint and reflective adhesive tape. The traffic marking lines, traffic signal boards and warning boards are made to guide drivers driving along the road. In the reflective coating on the surface of these pavement reflective markers, most of them are bonded with reflective ma...

AI Technical Summary

Problems solved by technology

This kind of primary road surface reflective adhesive tape generally has the following two shortcomings: (1) due to the difference in refractive index between water and air, the retroreflective (reflective) performance of the adhesive tape surface is greatly reduced in rainy or wet conditions. (2) When the light of the car is incident on the surface of these ordinary road reflective adhesive tapes with basically flat surfaces, the reflective effect is different at different distances due to the angle of incidence of the incident light, and the distance is too far or the distance is too long. Up close, the reflected light may not be seen at all

[0006] Although the above technical inventions and measures can greatly improve the performance of the original road surface reflective adhesive tape, especially the reflective performance, the driver can see the road traffic markings more clearly and conspicuously (especially in the dark) , but it obviously increases the technical difficulty and manufacturing cost of making these road reflective adhesive tapes