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Luminous coating composition

A technology of coating composition and mixture, which is applied in the field of luminescent coating composition, can solve the problems such as unsuitable safety marks of thin films, and achieve good detectability, improved recognizability, and favorable signal/noise-ratio effects

Inactive Publication Date: 2002-05-01
AVERY DENNISON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the aforementioned films are not suitable for security markings, but are used for producing optical effects, preferably for advertising purposes, since such films produce a permanent luminescence that is recognizable with the naked eye

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Into 100 parts of a solution of polyacrylate binder in ethyl acetate (solids content: 30%) was uniformly mixed 0.01 part of commercially available Lumilux which glows under UV-irradiation  Red MF-P 870 / LT type fiber (Honeywell company, Specialty Chemicals, formerly Riedel-de-Haёn). The adhesive is then applied to the PVC film with a doctor blade to a layer thickness of 200 μm and dried with hot air. The dried adhesive layer (60 μm) was then covered with siliconized paper. After the adhesive film is cut or stamped, a self-adhesive label or sticky strip is obtained. Under UV light irradiation, the adhesive layer of the adhesive layer shows red fluorescence within the range of added fibers. The fibers were not identifiable when viewed with the naked eye in daylight. On the contrary, under UV-lamp, this luminescent phenomenon can be observed with naked eyes.

Embodiment 2

[0044] In 100 parts of ethyl acetate solution (solids content: 30%) containing polypropylene binder, uniformly mix various commercially available mixtures of fibers that emit light under UV-irradiation, i.e. 0.005 parts of Lumilux  Red MF-P 870 / LT optical fiber, 0.004 parts of Lumilux  Blue MF-P 871 / LT type luminous fiber and 0.002 part Lumilux  Green MF-P877 / LT luminescent fiber. The adhesive was then applied to a transparent polyester film with a doctor blade to a layer thickness of 60 μm and dried with hot air. The dried adhesive layer (20 μm) was then covered with siliconized paper. The adhesive film is processed to give a self-adhesive lamination film which, under irradiation with UV light, locally displays colored fluorescence in the area of ​​the added fibers according to the red, blue or green color of the fibers. The fibers are not discernible when viewed with the naked eye in daylight. On the contrary, the luminescence phenomenon can be clearly seen with naked...

Embodiment 3

[0046] In 100 parts of aqueous dispersion containing polypropylene binder (solid content: 50%), uniformly mix various commercially available mixtures of fibers that emit light under UV-irradiation, i.e. 0.005 parts of Lumilux  Red MF-P870 / LT type luminous fiber, 0.004 parts of Lumilux  Blue MF-P871 / LT type luminous fiber and 0.002 parts of Lumilux  Green MF-P877 / LT luminescent fiber. The adhesive was then applied to the silicone paper with a decal roller to a layer thickness of 40 μm and dried with hot air. The dried adhesive layer (20 μm) was then covered with paper so that the adhesive layer transferred to the paper. The adhesive paper film is processed to give a self-adhesive label which, under UV-light irradiation, locally displays colored fluorescence (red, blue or green) in the range of the fibrous fibers. The fibers were not identifiable when viewed with the naked eye in daylight. On the contrary, the luminescence phenomenon can be clearly seen with the naked eye...

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PUM

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Abstract

The present invention relates to a luminescent coating compound, especially a luminescent coating compound comprising organic binder and luminescent fibers.The invention also relates to its use, especially for labeling of an article.

Description

field of invention [0001] The present invention relates to a luminescent coating composition. In particular the invention relates to a coating composition consisting of a binder and luminescable fibers, and the use of such a coating composition, in particular for marking objects. Background technique [0002] The term "luminescence" means the emission of light produced by a gas, liquid or solid after suitable energy input, which may emit light in the visible range, UV-range, infrared range and / or spectral range. There are two forms of luminescence, namely fluorescence and phosphorescence. For details, please refer to the terms "luminescence", "fluorescence" and "phosphorescence" in the Römpp Encyclopedia of Chemistry, 10th edition and the references therein. [0003] Coatings in which luminescent dyes or pigments are uniformly incorporated are commercially customary. Adhesives with fluorescent pigments are used for optical detection of the markers. But such coatings are ...

Claims

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Application Information

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IPC IPC(8): C09D201/00C08K3/00C09D5/22C09D7/40C09D7/41C09D7/61C09D7/65C09J7/38C09J9/00C09K11/02
CPCC08K5/0041C08K3/0033C09J9/00C08L2205/16Y10T428/298C09D5/22C09J7/0207C09K11/02Y10T428/24876C09D7/1291C09K11/025Y10T428/26C09D7/1283Y10T428/24994C09D7/69C09D7/70C08K3/013C09J7/38C09K11/06C09D7/65C09D7/61C09D7/41
Inventor M·科拉C·弗里格
Owner AVERY DENNISON CORP