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Sedimentation reflective transfer film single-film coplanar coating technology

A coating process and reflective film technology, applied in optics, optical components, instruments, etc., can solve the problems of poor antistatic properties of glass beads, affecting the performance of reflective film, and agglomeration of glass beads, and achieve excellent antistatic properties, quality The effect of increased, reflective performance and quality improvement

Inactive Publication Date: 2017-09-29
HEFEI DINGLIANG OPTICAL TECH
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AI Technical Summary

Problems solved by technology

[0004] At present, in the production process of reflective film, due to the poor antistatic property of glass beads and uneven dispersion, it is not conducive to the formation of a single layer of closely and evenly distributed glass bead layer, which is easy to cause agglomeration and overlapping of glass beads, which will affect the reflective film. performance, thereby affecting product quality

Method used

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Experimental program
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Embodiment Construction

[0021] A single-layer coplanar coating process for a sedimentation type reflective film, comprising the following specific steps:

[0022] (1) Surface coating treatment:

[0023] Add the cleaned glass microspheres to distilled water according to the solid-to-liquid ratio of 1:10, add sodium dodecylbenzenesulfonate, ultrasonically disperse for 25 minutes, raise the temperature to 100°C, and add 10% NaOH solution to control System pH to 3, using a constant pressure dropping funnel to slowly drop 100g / L of Ti(SO 4 ) 2 The solution was added dropwise within 2 hours. After the reaction was completed, it was cooled to room temperature, precipitated, filtered, and dried;

[0024] (2) Preparation of coating solution:

[0025] Mix the treated glass beads with the modified acrylic paint at a ratio of 1:5 and stir evenly at a high speed. The stirring speed is controlled at 6500 rpm, and stirred for 20 minutes to make it a uniform coating liquid;

[0026] (3) Coating:

[0027] Apply ...

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Abstract

The present invention discloses a sedimentation reflective transfer film single-film coplanar coating technology. The Zeta potentials of the surfaces of glass beads after processing of an anionic surfactant rises, the surfaces of the glass beads have positive charges, TiO2.nH2O has different charges from the surfaces of the glass beads, in the cladding process, and the different charges carried on the TiO2.nH2O basically completely neutralize charges carried on the hollow glass beads to allow the glass beads to have good antistatic property and easily form a glass bead layer in a single-layer uniform distribution mode; the glass bead coated with titanium dioxide are uniformly distributed in modified acrylic acid coating, the glass beads after cladding processing are improve in quality to prompt the sedimentation formation, the glass beads are subjected to rapid sedimentation to the surface of base film to form a tight and uniform glass bead layer, and the reflection performance and the performance of the prepared reflective transfer film are obviously improved.

Description

technical field [0001] The invention relates to the preparation of a reflective film material, in particular to a single-layer coplanar coating process of a sinking type reflective film. Background technique [0002] Retro-reflective materials can be simply called reflective materials. As a new type of material, reflective materials are mainly used in traffic signs. By adding reflective elements on the surface of the corresponding materials, the light can return in the same way to achieve the purpose of reflection; Under this condition, the reflective material achieves a visual effect hundreds of times more eye-catching than other non-reflective materials. [0003] The main raw materials used in reflective materials include resins, pigments, glass beads, etc., and any raw material is very important to the performance of reflective products. Among them, the bonding resin must have good construction performance and excellent bonding ability. For glass beads, it is required to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/128
CPCG02B5/128
Inventor 范春平
Owner HEFEI DINGLIANG OPTICAL TECH
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