RU68505U1 - PHOTOLUMINESCENT FILM MATERIAL - Google Patents

Abstract

The utility model relates to photoluminescent film materials that accumulate the light energy of the visible and UV regions of the spectrum and give off this energy in dark conditions in the yellow-green region of the spectrum corresponding to the spectral visibility of the human eye. The photoluminescent film material contains a protective polymer layer arranged in series with one another and a photoluminescent layer with a layer of release paper fixed on it, and the photoluminescent layer is formed from a photoluminescent composition comprising a phosphor with a particle size of 5-100 μm, activated by strontium and dispersed in a binder medium, containing PVA-D polyvinyl acetate dispersion, Plextol D-224 aqueous dispersion of glue, an aqueous dye solution and an aqueous solution of polyphosphate or tripolyphosphate is the sodium, citric acid, a viscosity regulator Rodolayn associative type RH-5230, the following component ratio, wt.% :,

PVA-D polyvinyl acetate dispersion - eleven water dispersion of adhesive Plextol D224 - 60

water solution

luminescent dye - 7.5 × 10 ^-2

an aqueous solution of polyphosphate or

sodium tripolyphosphate, citric acid,

associative viscosity regulator

Rodoline RH-5230 - the rest

Description

The utility model relates to photoluminescent film materials that accumulate the light energy of the visible and UV regions of the spectrum and give off this energy in dark conditions in the yellow-green region of the spectrum corresponding to the spectral visibility of the human eye.

Known composite lighting material, including a substrate of plastic mass, on which a base is made, made of an elastic polymer material transparent to visible radiation, and a filler, the phosphor powder being used as filler (RF patent No. 2079774, IPC F21V 9/10, 1997 publication).

Known lighting material has low lighting characteristics.

A light-emitting product is known, made in the form of warning, indicative or dimensional signs, and containing a solid phosphor in finely dispersed form introduced into the polymer matrix throughout its volume (RF application No. 20011110761, IPC S09K 11/00, publication of 2003).

The disadvantage of the product is that in order to increase the brightness of the afterglow, it is necessary to increase the concentration of the phosphor and the thickness of the polymer binder, which sharply affects the physical and mechanical properties of the product.

Known material with a luminescent coating deposited on one side of the fabric substrate, and containing an inorganic phosphor and a rubber compound as a binder, and in

Fire-resistant fabric was used as a substrate, and the luminescent coating was made in two layers, each of which consists of a mixture of two phosphors ФВ-540-1 and ФБ-530D, for hardening of which a hardener L-10С of the type methyltriacetoxyl was used, and a binder - synthetic rubber heat-resistant low molecular weight SKTN compounds, while the outer layer of the luminescent coating has a thickness less than the thickness of the inner layer, and layers are deposited on both sides of the fabric substrate, including the SKTN rubber compound (RF patent No. 2179469, IPC A62 17/00, published 2002).

The disadvantages of the known material include its low manufacturability, while the use of organic solvents increases the toxicity of the material.

Known photoluminescent material for road marking, made in the form of a paste, containing from 7 to 95 wt.% A transparent polymer component selected from the group consisting of methacrylic component, acrylic component, component type unsaturated polyester, epoxy component and component silicone type, photoluminescent pigment a component with an average particle diameter of 10 to 2000 μm selected from the group consisting of a material such as strontium aluminate and a material such as zinc sulfide, and at least din is an additional pigment component with an average particle diameter of from 0.1 to 40 μm, selected from the group consisting of a white pigment, a yellow pigment and an orange or red pigment, the ratio of the mass of the photoluminescent pigment component and the mass of additional pigment components is not more than 3, 0 (RF patent No. 2276702, IPC E01F 9/08, publication 2006).

Known photoluminescent film material containing sequentially arranged one above the other diffuse reflective layer formed by filled polypropylene, photoluminescent

a layer, a transparent adhesive layer and a protective polymer layer, wherein the photoluminescent layer is formed of a photoluminescent composition comprising a phosphor with a particle size of 5-60 μm dispersed in a binder medium containing an aqueous solution of sodium polyphosphate, an aqueous solution of a copolymer of butyl acrylate, acrylic acid and sodium salt acrylic acid, and an aqueous dispersion of Plextol D224 glue (patent for PM No. 40052, IPC C09K 11/00, 2004 publication).

Known material cannot be used to visualize information invisible in the dark.

The task of creating a real utility model is to expand the arsenal of technical means used in the manufacture of photoluminescent materials, and to create a photoluminescent film material that can visualize information invisible in the dark in the form of letters, numbers and signs.

The essence of the proposed utility model is as follows.

The photoluminescent film material contains a protective polymer layer arranged in series with one another and a photoluminescent layer with a layer of release paper fixed on it, and the photoluminescent layer is formed from a photoluminescent composition comprising a phosphor with a particle size of 5-100 μm, activated by strontium and dispersed in a binder medium, containing PVA-D polyvinyl acetate dispersion, Plextol D-224 aqueous dispersion of glue, aqueous dye solution and aqueous polyphosphate or tripolyphosphate solution is the sodium, citric acid, a viscosity regulator Rodolayn associative type RH-5230, the following component ratio, wt.% :,

PVA-D polyvinyl acetate dispersion - eleven water dispersion of adhesive Plextol D224 - 60

water solution

luminescent dye - 7.5 × 10 ^-2

an aqueous solution of polyphosphate or

sodium tripolyphosphate, citric acid,

associative viscosity regulator

Rodoline RH-5230 - the rest

The photoluminescent layer can be applied to a transparent film.

The phosphor dispersed in a binder medium is applied as a sticky layer to a transparent polymer film. A sticky binding medium provides transparency (enlightenment) of the applied layer during its physical contact with the visualized object in the form of information boards, inscriptions, various signs, and a phosphor glowing in the dark makes these objects visible for quite some time.

The claimed material provides visibility in the darkness of the object on which it is pasted, including information in the form of letters, numbers, signs.

Figure 1, 2 of the drawing schematically shows the proposed photoluminescent film material.

The photoluminescent film material contains a protective transparent polymer layer 1, a photoluminescent adhesive layer 2, a layer 3 of release paper (figure 1).

Layer 3 release paper protects the sticky photoluminescent layer 2 from unauthorized sticking to it of any random materials.

To visualize non-luminous in the dark inscriptions in the form of signs, layer 3 of the release paper peels off from the photoluminescent layer 2, which then laminate the visualized surface 4 with the printed signs 5 (Fig. 2).

Table 1 shows an example of the formulation of a photoluminescent composition.

Table 1 No. p / p Name of materials Percentage one Phosphor PL-1 according to TU 2149-044-40245042-2003, LLC NPK-Penta, microcrystal size (10-30) microns eleven 2 Sodium polyphosphate (10%) aqueous solution 1,6 3 Citric acid (25%) aqueous solution 0.9 four PVA-D polyvinyl acetate dispersion of the DD51 / 10 brand according to TU 2241-086-00203521-04 eleven 5 Dye (1%), water, laminating CFA001 firm Afaya 7.5 × 10 ^-2 6 Brayer glue Plextol D-224 60 7 Rhodoline Associative Viscosity Regulator RH-5230 Rhodia Aqueous Solution fifteen 8 Wetting agent SV-104P (9%) water 0.4

The advantages of the proposed material include the following:

- for the dispersion of the phosphor does not require the use of special dispersing devices;

- a phosphor suspension mixed in a binder medium is highly resistant to precipitation. A noticeable “by eye” precipitate can be obtained by standing the suspension for 72-96 hours;

- high resistance of the binder to film formation. The time for film formation is calculated in many hours (1-12 hours);

- the binding medium is chemically neutral, because pH pH = 6.5-6.8;

- for the preparation of a binder medium, cheap, readily available components are used;

- the ability to control the “stickiness” of the photoluminescent composition in the range from “neutral not sticky” to “adhesive sticky”;

- the ability to control the viscosity of the binder medium over a wide range from 20 to 80 seconds through the funnel VZ-4;

- the absence of the need to use an adhesive layer that holds the protective polymer layer on the photoluminescent layer, and, as a result, cheaper photoluminescent material;

- increased values of brightness and afterglow duration due to the introduction of a luminescent dye;

the binding medium does not contain organic solvents, which makes the use of the proposed material environmentally friendly.

Using the described technical solution, a self-adhesive film was made to visualize information labels and signs invisible in absolute darkness, in an amount of 500 m ² .

The brightness of the afterglow (mcd / m ² ), measured according to GOST R.12.2.143-2002 and GOST R.12.4.026-2001 of samples of photoluminescent self-adhesive film for visualization of inscriptions and signs invisible in the dark, is presented in table 2.

The table shows the brightness values of the afterglow when kept in the dark for 1, 10 and 60 minutes.

table 2
Dark time Background color Brightness, mcd / m ² one' 10' 60 ′ White 600 40 7.0

The results obtained confirm the visualizing abilities of the proposed material for a fairly long time.

Claims (2)

1. A photoluminescent film material comprising a protective polymer layer arranged in series with each other and a photoluminescent layer with a layer of release paper fixed to it, characterized in that the photoluminescent layer is formed of a photoluminescent composition comprising a phosphor with a particle size of 5-100 μm, activated by strontium and dispersed in a binder medium containing a PVA-D polyvinyl acetate dispersion, an aqueous dispersion of Plextol D-224 glue, an aqueous dye solution and an aqueous polyphosphate solution or sodium tripolyphosphate, citric acid, associative type viscosity control Rodolayn RH-5230, the following component ratio, wt%: PVA-polyvinyl acetate dispersion A -. 11; water dispersion of adhesive Plextol D224 - 60; water solution; luminescent dye - 7.5 · 10 ^-2 ; an aqueous solution of sodium polyphosphate or tripolyphosphate, citric acid; Rhodoline RH-5230 associative viscosity regulator - the rest. 2. The material according to claim 1, characterized in that the photoluminescent layer is deposited on a transparent film.