A new method of making a microprism type reflective material mold

Abstract

The invention relates to a manufacturing method of a novel microprism type reflective material mold. The microprism mold obtained by the existing method only has a microprism reflective unit of one structure, and the reflected light intensity of the reflective material thus formed is difficult to meet the requirements of recognition in a wide range of irradiation and observation angles. The present invention mainly includes the following steps: using a cutting tool to cut the substrate in three directions, the distance D between cutting lines in the three cutting directions is 300 μm to 500 μm, and the cutting tool has two cutting angles A and B with different angles, The cutter is offset by a distance D / 2, and the substrate is cut in a direction opposite to the three cutting directions, and a microprism type reflective material mold is formed after cutting. The microprism type reflective material mold obtained by the present invention has excellent "wide-angle property" and "directivity" is not obvious, and can well meet the recognition requirements within a wide range of illumination angle and observation angle.

Description

technical field [0001] The invention relates to a manufacturing method of a microprism type reflective material mold, in particular to a manufacturing method of a novel microprism type reflective material mold. Background technique [0002] Reflective materials have the characteristics of reflecting incident light back to the light source, which has the advantages of energy saving and environmental protection, and are widely used in traffic safety signs, engineering signs, clothing and other fields. At present, reflective materials are mainly divided into two categories: glass bead reflective materials and microprism reflective materials. Among them, the microprism reflective material is formed by molding a microprism reflective material mold with a microprism reflective unit array structure on a polymer film material or pouring a polymer resin, and its core is a combination of triangular pyramids with a specific structure. The formed microprism reflective unit, the micropr...

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Problems solved by technology

like figure 1 , figure 2 As shown, the microprism mold obtained by this method has the same three cutting surfaces c of the triangular pyramid, that is, the microprism mold only has a microprism reflective unit of one structure, and two adjacent triangular pyramids are perpendicular to The degrees of the angle C between the directions are the same, and the reflected light intensity of the resulting reflective material is difficult to meet the requirements of identification in a wide range of illumination and observation angles, and it is easy to form a traffic safety hazard; moreover, this reflective material It presents completely different reflected light intensities in different directions, which is not conducive to subsequent construction

Therefore, some people also thought of using two different tools to realize micro-prism reflective units with different structures, but it is extremely difficult to adjust and replace the two tools during processing, which puts forward very strict requirements on processing equipment and technology, and it has not been effective so far. implement

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