RU2538856C2 - Decorative material - Google Patents

Abstract

FIELD: textiles, paper.

SUBSTANCE: decorative material comprises a substrate of waterproof paper or paperboard coated with a light-accumulating coating containing luminophor SrAl₂O₄:Eu,Dy and a solvent binder with the ratio of components, wt %: SrAl₂O₄:Eu,Dy - 10÷45, the solvent binder - 55÷90. The luminophor particles have a size of 100÷160 microns. The solvent binder is used as the paints based on extender oils.

EFFECT: density and uniformity of the coating layer is ensured, which does not crumble and does not break when bent, the material does not absorb moisture.

2 cl, 3 ex

Description

The invention relates to decorative coatings, in particular, to “luminous” cardboard or paper, which can be used for decorative and applied work, in the works of artists, children's art, in the printing industry, in the advertising business, in the manufacture of photographs, drawings, business cards, for printing evacuation schemes and plans, menus, badges, etc.

Known toy [patent for invention No. 2377042; IPC ⁶ A63H 33/00; published on December 27, 2009], made in the form of a variety of flat and three-dimensional figures, various geometric shapes of film, sheet, stripes, strands of polymeric materials, including metallized, for example, metallized dacron film, lightweight foamed polymers, for example, based on polystyrene foam, paper, foil, balloons of various shapes with multicolored paints on their surface with light-accumulating materials.

Known material with a luminescent coating [patent for the invention No. 2179469; IPC ⁷ А62В 17/00; published on February 20, 2002], to obtain which a luminescent coating containing an inorganic phosphor and a rubber compound as a binder is applied on one side of a fabric substrate.

Known photoluminescent film material [patent for utility model No. 40052; IPC ⁷ C09K 11/00; published on August 27, 2004], comprising a diffusely reflecting layer arranged successively one above another formed by a filled polypropylene, a photoluminescent layer, a transparent adhesive layer and a protective polymer layer, wherein the photoluminescent layer is formed of a photoluminescent composition comprising a strontium activated phosphor with a particle size of 5 -60 μm dispersed in a binder medium.

Known photoluminescent film material [patent for utility model No. 68505; IPC ⁷ C09K 11/00; published November 27, 2007], containing a protective polymer layer arranged in series with one another and a photoluminescent layer with a layer of release paper fixed to it, and the photoluminescent layer is formed from a photoluminescent composition comprising a strontium-activated phosphor with a particle size of 5-100 μm.

Known light-accumulating polymer layer [patent for the invention No. 2243985; IPC ⁷ C09K 11/56, C09K 11/80; published January 10, 2005], uniformly filled with an inorganic light-emitting emitter including an aluminate phosphor, the polymer layer being made in the form of a film based on polydimethylsiloxane or polycarbonate, and a mixture of finely crystalline inorganic zinc sulfide phosphors was used as a light-emitting emitter. The geometric thickness of the polymer film is from 90 to 2000 microns. The particle size of the inorganic phosphors filling the layer lies in the range from 10 to 60 microns.

A disadvantage of the known technical solutions is the low adhesion to the substrate, as a result of which, upon rupture, cutting, bending, the light-accumulating layer is separated from the substrate and crumbles.

A decorative paper-based material coated with a light-accumulating coating contains a phosphor strontium aluminate activated by europium and dysprosium, and a solvate binder. The base is made of waterproof paper or cardboard. The ratio of coating components, in wt.%: (SrAl ₂ O ₄ ): Eu, Dy - 10 ÷ 45, the solvent binder - 90 ÷ 55, while the phosphor particles have a size of 100 ÷ 160 μm.

As a solvent binder, paints based on oil diluents are used.

The production of decorative material is carried out in three stages:

making a luminous composition, applying it to a substrate and drying.

The luminous composition is applied to the substrate by the silk-screen printing method at the rate of 15–30 g of mixture per square meter.

Depending on the selected mixture composition, drying is carried out under various conditions: at room temperature, in an oven, using ultraviolet (UV) radiation, or in a combined way.

Example 1

A luminous composition is prepared using strontium aluminate activated by europium and dysprosium (SrAl ₂ O ₄ ): Eu, Dy, in an amount of 45% with a particle size of 100 μm and the SICO colorless binder CARTOFLEX CF SERIE using Thinner diluent, Ratarder base retarder in the amount of 55%. It is applied on a waterproof paper base and dried using ultraviolet (UV) radiation.

Example 2

A luminous composition is prepared using strontium aluminate activated by europium and dysprosium (SrAl ₂ O ₄ ): Eu, Dy, in an amount of 10% with a particle size of 160 μm and the SERICOL solvent binder of the company SERICOL colorless using SERICOL diluent, SERICOL moderator in the amount 90% It is applied on a waterproof paper base and dried using ultraviolet (UV) radiation.

Example 3

A luminous composition is prepared using strontium aluminate, activated by europium and dysprosium (SrAl ₂ O ₄ ): Eu, Dy, in an amount of 25% with a particle size of 100 μm and a solvent binder Vynaglaze APR from Sun Chemical colorless using a Sun Chemical diluent, a Sun retarder Chemical in an amount of 75%. It is applied on a waterproof paper base and dried using ultraviolet (UV) radiation.

The technical results of the invention are:

- the coating has a dense uniform layer, does not crumble, has no sticky layer, is dry, pleasant to the touch,

- under mechanical stress, such as bending, the product does not break, the decorative layer at the bend does not crumble,

- when cutting the finished product at the site of the incision, a slight shedding of the decorative coating up to 5 μm occurs, not noticeable in ordinary perception,

- with all the above advantages, the declared decorative material on a paper basis has hydrophobic properties, does not absorb moisture.

The application of the invention enables the long-term use of products from the "luminous" cardboard without loss of quality, and also provides a variety of color solutions, the effect of "velvety" coating with a significant duration of its afterglow.

Claims (2)

1. A decorative paper-based material, including a base coated with a light-accumulating coating containing a phosphor, based on strontium aluminate and a solvent binder, characterized in that the base is made of waterproof paper or cardboard, and strontium aluminate SrAl ₂ O is used as a phosphor ₄ : Eu, Dy, activated by europium (Eu) and dysprosium (Dy) in the ratio of coating components, in wt.%: SrAl ₂ O ₄ : Eu, Dy - 10 ÷ 45, solvent binder - 55 ÷ 90, while the phosphor particles make up 100 ÷ 160 microns. 2. Decorative material according to claim 1, characterized in that paints based on petroleum diluents are used as a solvent binder.