WO2008007394A1 - Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu - Google Patents

Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu Download PDF

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Publication number
WO2008007394A1
WO2008007394A1 PCT/IT2006/000524 IT2006000524W WO2008007394A1 WO 2008007394 A1 WO2008007394 A1 WO 2008007394A1 IT 2006000524 W IT2006000524 W IT 2006000524W WO 2008007394 A1 WO2008007394 A1 WO 2008007394A1
Authority
WO
WIPO (PCT)
Prior art keywords
microspheres
spheres
binding agent
new process
previous
Prior art date
Application number
PCT/IT2006/000524
Other languages
English (en)
Inventor
Fabio Valle
Alessandro Borella
Original Assignee
Fabio Valle
Alessandro Borella
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fabio Valle, Alessandro Borella filed Critical Fabio Valle
Priority to PCT/IT2006/000524 priority Critical patent/WO2008007394A1/fr
Publication of WO2008007394A1 publication Critical patent/WO2008007394A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/061—Special surface effect
    • B05D5/063—Reflective effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix

Definitions

  • the present invention concerns the techniques for treating various types of surfaces and in particular it concerns a new process and the relevant devices for applying refracting and reflecting spheres and/or microspheres on surfaces and the product obtained therewith.
  • Various surface treatment techniques are known that are used for painting and/or decorating and/or covering various types of surfaces.
  • Said treatments may have only a decorative function or even a protective or covering function, for example for maximizing the light reflecting effects.
  • Films or tesserae are known, which are suited to be applied on various types of surfaces, for example on clothing items, and wherein said films have refracting properties, that is, they reflect the light incident on them, thus becoming visible also form a considerable distance and in poor lighting conditions.
  • the object of the present invention is a new process for applying refracting and reflecting spheres and/or microspheres on any type of surface, the relevant devices and the product obtained therewith.
  • the main aim of the present invention is to propose a surface having high light-reflecting properties, through the application of refracting spheres and/or microspheres.
  • a further aim of the present invention is to guarantee the permanent adhesion of said spheres and/or microspheres through the previous application of a suitable quantity of binding agent.
  • Another aim of the present invention is that said spheres and/or microspheres should be able to be applied to any type of surface or material.
  • a further aim of the present invention is to guarantee that said spheres and/or microspheres are suitably immersed in the binding agent, thus optimizing at the same time both the refracting and reflecting capacity of the treated surface, which can be attributed to the emerged portion of the spheres and/or microspheres, and the stable adhesion of the spheres to the binding agent.
  • the new process for applying spheres and/or microspheres includes the following stages: ⁇ applying the binding agent to the surface to be treated; applying the spheres and/or microspheres on said layer of binding agent; any operation aimed at ensuring the adhesion of said spheres and/or microspheres on said surface, like for example compressing or compacting the spheres on the surface itself.
  • said binding agent is constituted by any type of substance suited to guarantee the adhesion of said spheres and/or microspheres to the surface to be treated.
  • said binding agent may be a glue, a resin or a varnish/paint, transparent or coloured.
  • the use of enamels or inks or other types of substances suited to serve as a binding agent is also possible.
  • Said binding agent can be used not onl$ to guarantee the adhesion of said spheres and/or microspheres to the treated surface, but it is also used for decoration or protection purposes.
  • Said binding agent is spread on the entire surface to be treated or on part of the same, in such a way as to form a layer having a thickness suited to guarantee the adhesion of the spheres successively applied.
  • Said spheres or microspheres are fragments of glass, ceramic or plastic, and in the case of said microspheres they have typical dimensions even in the order of microns.
  • Said spheres and/or microspheres reflect the light incident on them, so that the treated surface is visible even from a considerable distance and in poor lighting and visibility conditions.
  • said spheres and/or microspheres in particular in the case of sun radiation, maximize the reflection of light and reduce the quantity of sun radiation transmitted through the surface itself, thus performing also a heat insulating function.
  • Oriented spheres or microspheres may also be used, that is, spheres or microspheres having a silvery hemisphere that increases the reflecting properties of each sphere and lends a chromed hue to the treated surface.
  • the application of said spheres and/or microspheres is carried out, for example, by spraying them with suitable devices like guns or the like.
  • Said spheres and/or microspheres may also be applied through scattering, using sieves or machines that are similar to seeders, for example roller seeders.
  • said application of spheres and/or microspheres must take place immediately after the application of said binding agent.
  • the application of the spheres must therefore take place in the time interval following the application of the binding agent, but before it dries up, even if partially or superficially.
  • said spheres and/or microspheres can penetrate the layer partially, in such a way as to adhere permanently to it when the binding agent has hardened completely. It has been found that to maximize the light reflecting properties said spheres and/or microspheres must emerge from said layer of binding agent with least 50 % of their volume.
  • the thickness of the layer of binding agent applied to the surface to be treated must be equal to approximately 50% of the diameter of the spheres that will be successively applied.
  • the quantity of binding agent used and the thickness of the applied layer depend on the diameter of the spheres and/or microspheres used.
  • said treated surface after application of said spheres and/or microspheres said treated surface must be compressed, in order to further immerse in the binding agent the spheres and/or microspheres not sufficiently immersed. In this way the adhesion of the spheres and/or microspheres to the treated surface increases.
  • One of the advantages offered by the present patent lies in that it also limits the waste of binding agent, using only the indispensable quantity, and the waste of spheres and/or microspheres, since the percentage of spheres and/or microspheres that come off the surface is reduced to a minimum.
  • the new process can be employed for any type of surface or support, since it is possible to use the type of binding agent that is most suitable for the surface and for the type of decorative and/or protective and/or functional surface treatment to be carried out. Therefore, the new process can be employed for example on: material for making packages or containers in general, for example for food containers, where the refracting surface limits the transmission of sun radiation thro ⁇ gh the walls of the container itself, thus improving heat insulation; coverings for houses, to reduce heat transmission inside rooms;
  • Figure 1 schematically shows the treated surface, and in particular the layer of binding agent (L) distributed on the surface (Sl) of a support (S), and the spheres (F) partially immersed in said layer of binding agent (L).
  • the new process for applying spheres and/or microspheres (F) can be used on the surface (Sl) of any type of support (S) made of any material and having any shape, consistency, porosity.
  • said surface (Sl) on which said spheres and/or microspheres (F) are applied is -substantially flat, but said surface
  • (Sl) may also be curved, concave or convex, with sharp edges, etc.
  • spheres and/or microspheres (F) are applied after the application of a layer of binding agent (L). As shown, said spheres and/or microspheres (F) are preferably immersed in said layer of binding agent (L) with approximately 50% of their volume.
  • the thickness of said layer of binding agent (L) is preferably equal to the typical radius of the applied spheres and/or microspheres (F).

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne un nouveau procédé d'application de sphères et/ou microsphères (F) sur la surface (Sl) de tout type de support (S), après l'application d'une quantité adaptée d'un agent liant (L). Selon ce procédé, au moins 50 % du volume desdites sphères et/ou microsphères (F) est immergé, lesdites sphères et/ou microsphères (F) étant appliquées au moyen de dispositifs de vaporisation et/ou de diffusion appropriés.
PCT/IT2006/000524 2006-07-10 2006-07-10 Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu WO2008007394A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000524 WO2008007394A1 (fr) 2006-07-10 2006-07-10 Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000524 WO2008007394A1 (fr) 2006-07-10 2006-07-10 Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu

Publications (1)

Publication Number Publication Date
WO2008007394A1 true WO2008007394A1 (fr) 2008-01-17

Family

ID=37697859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000524 WO2008007394A1 (fr) 2006-07-10 2006-07-10 Procédé d'application de sphères et/ou microsphères réfringentes et réfléchissantes sur des surfaces et produit ainsi obtenu

Country Status (1)

Country Link
WO (1) WO2008007394A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2342292A4 (fr) * 2008-10-31 2011-07-13 Potters Industries Inc Revêtement rétroréfléchissant et procédé d'application d'un revêtement rétroréfléchissant sur une structure
US10245812B2 (en) 2014-02-13 2019-04-02 3M Innovative Properties Company Dual cure stain resistant microsphere articles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286605A (en) * 1964-09-30 1966-11-22 Prismo Safety Corp Apparatus and method for marking a surface
US3296010A (en) * 1963-07-24 1967-01-03 Inland Steel Co Method of applying reflectorizing coatings
US6355302B1 (en) * 1999-12-10 2002-03-12 3M Innovative Properties Company Continuous process for making high performance retroreflective fabric
WO2005047604A1 (fr) * 2003-11-06 2005-05-26 3M Innovative Properties Company Elements retroreflechissants comprenant un noyau de resine lie, et marquages sur chaussee
US20050162742A1 (en) * 2003-12-30 2005-07-28 Fleming Robert J. Color shifting retroreflector and method of making same
US20060040575A1 (en) * 2004-08-18 2006-02-23 Kelleher Karen A Reflective printing on flame resistant fabrics

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296010A (en) * 1963-07-24 1967-01-03 Inland Steel Co Method of applying reflectorizing coatings
US3286605A (en) * 1964-09-30 1966-11-22 Prismo Safety Corp Apparatus and method for marking a surface
US6355302B1 (en) * 1999-12-10 2002-03-12 3M Innovative Properties Company Continuous process for making high performance retroreflective fabric
WO2005047604A1 (fr) * 2003-11-06 2005-05-26 3M Innovative Properties Company Elements retroreflechissants comprenant un noyau de resine lie, et marquages sur chaussee
US20050162742A1 (en) * 2003-12-30 2005-07-28 Fleming Robert J. Color shifting retroreflector and method of making same
US20060040575A1 (en) * 2004-08-18 2006-02-23 Kelleher Karen A Reflective printing on flame resistant fabrics

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2342292A4 (fr) * 2008-10-31 2011-07-13 Potters Industries Inc Revêtement rétroréfléchissant et procédé d'application d'un revêtement rétroréfléchissant sur une structure
EP2342292A2 (fr) * 2008-10-31 2011-07-13 Potters Industries, Inc. Revêtement rétroréfléchissant et procédé d'application d'un revêtement rétroréfléchissant sur une structure
US8840956B2 (en) 2008-10-31 2014-09-23 Potters Industries, Llc Retroreflective coating and method for applying a retroreflective coating on a structure
KR101499780B1 (ko) * 2008-10-31 2015-03-09 포터스 인더스트리즈, 인크. 역반사 코팅 및 구조체에 역반사 코팅을 도포하기 위한 방법
US10245812B2 (en) 2014-02-13 2019-04-02 3M Innovative Properties Company Dual cure stain resistant microsphere articles

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