31results about How to "High coefficient of retroreflection" patented technology

The invention discloses a colorful high-brightness hot-sticking reflective cloth. The colorful high-brightness hot-sticking reflective cloth comprises a base material (1), a bead planting layer (2), glass microbeads (3), a zinc sulfide layer (4), an aluminum layer (5) and a hot melt adhesive layer (6), wherein the thickness of the base material (1) is 10-125 microns; the bead planting layer (2) is arranged at the lower surface of the base material (1); a plurality of glass microbeads (3) with different particle diameters are arranged between the zinc sulfide layer (4) and the bead planting layer (2); the lower half part of each microbead is embedded into the zinc sulfide layer (4); the particle-diameter size of each glass microbead (3) is 5-120 microns; the refractive index of the glass microbeads is 1.90-1.93; and the thickness range of the bead planting layer (2) is more than 0.1 micron and is less than one third of the average particle diameter of the glass microbeads (3). The colorful high-brightness hot-sticking reflective cloth disclosed by the invention has the beneficial effects that the manufacturing process is simple, the colorful effect is good, the retro-reflecting coefficient is high, the increasingly individualized and fashionable market demand for customers can be met, and the product can be used for character engraving and hot sticking.

The invention discloses a high-weather-resistance household washing permanent-color high-strength reflecting material with a TC (terylene cotton) fabric as a base. The high-weather-resistance household washing permanent-color high-strength reflecting material comprises a base material, an adhesion layer, a color bottom layer, a reflecting layer, a transparent color layer, a protective layer and glass beads. Incident light is sequentially transmitted through the glass beads and the transparent color layer to reach the reflecting layer to be focused and reflected, reflected light is further transmitted through the glass beads so that a visual colored light reflection effect is realized, other light rays of an incident light source are simultaneously diffused on the transparent color layer among the glass beads and are mapped to the glass beads, a visual comprehensive color light reflection effect is realized under the joint action of focusing and reflecting of the other light rays, incident light rays are transmitted through gaps among the glass beads, the transparent color layer and the reflecting layer to reach the color bottom layer, and colors of the bottom layer are mapped on the glass beads to realize a color light reflection effect. The high-weather-resistance household washing permanent-color high-strength reflecting material has a high coefficient of retroreflection, and is high in weather resistance and color retainability.

The invention provides a road marking reflective bead comprising titanium dioxide, calcium oxide, zirconium oxide, boron oxide, aluminum oxide and an inorganic salt additive, a preparation process of the road marking reflective bead comprises the following steps: step 1, using a sand mill for grinding and high speed dispersion of the titanium dioxide, calcium oxide, zirconium oxide, boron oxide, aluminum oxide and inorganic salt additive to obtain inorganic slurry; step 2, granulating by spray drying of the inorganic slurry; step 3, sintering the dried particles in the high-temperature oxygen-enriched environment into fine grains; step 4, cooling, collecting and screening the fine grains to obtain the road marking reflective bead. By improvement of product components, the refraction rate of crystallite ceramic beads can reach above 2.2, and the weather-proof, wear-resisting, water-tolerant and alkali resistant functions of the product and coating adhesion can be improved, so that the product has high hardness and high wear resistance, the all-weather reflective effect of the product can be ensured, and the consistency of the service life of the ceramic beads and a marking can be ensured.

The invention discloses a preparation method of a micro-prism working mould with a subsequent continuous processing function, relating to micro-prism reflection films. The preparation method comprises the following steps: adding water into an electroforming tank, and adding nickel sulfate hexahydrate and nickel chloride in sequence; adding boric acid into hot water, boiling, adding lauryl sodium sulfate, dissolving, pouring into the electroforming tank, adding saccharin and 1,4-butynediol into the electroforming tank, filling up water in the electroforming tank, and adjusting the pH value to be 4.0-4.4 to obtain an electroforming liquid; continuously copying a metal master mould on a PVC material to obtain a sheet-like template with a micro-pyramid structure on one side, wherein each side length of the micro-pyramid of the sheet-like template is 100-200 microns; keeping the micro-pyramid structure on the inner side, defining a barrel by the sheet-like template, performing butt welding to obtain an annular template, and performing electroforming pre-treatment on the inner surface of the annular template; putting an anode nickel plate into an annular anode basket, and connecting to an anode; and putting the annular template into the electroforming tank, connecting to a cathode while ensuring that the cathode is concentric with the anode, electroforming, and performing cathodic de-moulding to obtain the micro-prism working mould.

The invention provides an all-weather high-refraction reflective micro-crystal ceramic bead. The all-weather high-refraction reflective micro-crystal ceramic bead comprises an inner core and a core reflective element, wherein the core reflective element comprises the following components: titanium dioxide, calcium oxide, zirconium oxide, boron oxide, aluminum oxide and inorganic salt additives. By improvement of the product components, the refractive index (ND value) of the micro-crystal ceramic bead can reach more than 2.2; when high refractive index is reached, the weather resistant function, the abrasion resistant function, the water resistant function and the alkali resistant function of products and the adhesive force of the products with paints are improved, so that the products have high hardness and high abrasion resistant performance, the condition that the products reach the all-weather reflective effect is ensured, and at the same time, the consistency of the service lives of the ceramic bead and graticules is ensured.

The invention relates to a full-aluminizing high-refractive-index glass microbead. The full-aluminizing high-refractive-index glass microbead comprises a glass microbead body (1) and an aluminizing layer (2), wherein the aluminizing layer (2) completely covers the outer surface of the glass microbead body (1); the refractive index of the glass microbead body (1) is 1.90-2.21; the thickness of the aluminizing layer (2) is 300 angstroms to 1,200 angstroms. The production process comprises the following steps: S1, planting a bead; S2, aluminizing once; S3, compounding; S4, peeling and aluminizing for the second time; S5, removing a planted bead resin layer B (6) to obtain the full-aluminizing glass micro bead. The full-aluminizing high-refractive-index glass microbead and the production process thereof, which are provided by the invention, have the advantages that the coating thickness is controlled by a coating machine, and the operation is simple; because the planted bead resin layer B is water soluble resin, and is soluble in water, the aluminized glass micro bead can be conveniently separated away from a base material, and the appearance cannot be damaged, and the product percentage of pass is high; the full-aluminizing high-refractive-index glass microbead is high in retroreflection coefficient, and a light reflection effect is good.

Provided is a microprism reflecting material manufacturing method, comprising employing the diamond lathe ultra-precision cutting process to manufacture a microprism structure reflecting material original graphic mould on materials such as plastic, metal, colloid, crystal, etc.; manufacturing modules of PDMS, PC, PMMA, photosensitive gel, etc. out of an original mould with a microprism pattern through thermocuring, ultraviolet curing, and duplication processes; plating a duplicated intermediate mould with a layer of fluorine containing macromolecules, and improving nickel mould surface demoulding; coating the modified intermediate mould with material solutions of PMMA, PC, photosensitive gel, etc. to perform curing processing, and then performing separated demoulding between the module and a target reflective membrane; and finally decorating the demoulded microprism reflecting material membrane into a designed shape. The method effectively solves the problems of great manufacturing difficulty, poor preserving effect, large processing technology tolerance, etc. of a present microprism reflecting material intermediate work mould.

The invention provides a hot melt adhesive for a reflective film. The hot melt adhesive comprises the following raw materials in parts by mass: 45-50 parts of saturated polyester resin, 27-32 parts ofa solvent, 0.3-0.7 part of a dispersing agent, 12.5-13 parts of 1,6-hexanediol diacrylate, 0.2-0.4 part of an anti-oxidation auxiliary agent, 0.8-1.2 parts of an ultraviolet absorbent and 5-6 parts of glass beads. The invention also provides a preparation method of the hot melt adhesive for the reflective film, the reflective film and a preparation method of the reflective film. The retro-reflection coefficient of the reflective film can be enhanced, so that the reflective film is suitable for more occasions.

A process for preparing a reflecting curved surface focus layer with the same circle center of reflecting film includes coating adhesive on surface resin and binding glass micro ball on surface resin by static ball lay out, pressing glass micro ball to let its bottom on the same plane of glass micro ball layer then coating modified aryloid coating on micro ball bottom; drying coated semi product through drying channel to form curved surface focus layer with the same circle center of glass micro ball at micro ball bottom naturally.

Disclosed is a retroreflective sheet including a pattern for improving a retroreflective coefficient. A retroreflective sheet according to an embodiment of the present invention comprises: a substrate layer comprising a polymer resin; a light path induction layer which is in contact with the lower surface of the substrate layer and contains an adhesive resin; and a pattern layer which is in contact with the lower surface of the optical path induction layer and has a cube corner pattern and an additional pattern formed on different surfaces.

The invention relates to a retroreflective sheet and a preparation method thereof. The retroreflective sheet sequentially comprises an erasable layer and a reflective layer body containing glass beads, the erasable layer is an ink layer containing organic pigment, and the particle size of the organic pigment does not exceed 600 nm. The retro-reflection sheet provided by the invention has the advantages of good wiping performance, high retro-reflection coefficient, low haze, high light transmission and good storage stability. The retroreflective sheet can be directly used for preparing the license plate, reduces the printing process, is convenient to manufacture and reduces the cost.