Novel method for manufacturing microprism type light reflecting material mold

Abstract

The invention relates to a novel method for manufacturing a microprism type light reflecting material mold. A microprism mold obtained with an existing method only comprises microprism light reflecting units of one kind of structures, and the reflected light intensity of light reflecting materials obtained in this way can not meet the requirement that recognition is carried out within a wide illumination range and a wide observation angle range. The novel method mainly includes the following steps: a substrate is cut through a tool in three directions, wherein the distances between cutting lines in the three cutting directions range from 300 micrometers to 500 micrometers, and the tool has the cutting angle A and the cutting angle B which are different; the tool is displaced by the D/2 distance, the substrate is cut in the directions opposite to the three cutting directions, and the microprism type light reflecting material mold is formed after cutting. The microprism type light reflecting material mold obtained with the novel method has the excellent wide angle performance and is not obvious in the direction performance, and the requirement of recognition within the wide illuminating angle range and the wide observation angle range can be well met.

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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