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WO2000030867A1 - Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede - Google Patents

Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede Download PDF

Info

Publication number
WO2000030867A1
WO2000030867A1 PCT/ES1998/000315 ES9800315W WO0030867A1 WO 2000030867 A1 WO2000030867 A1 WO 2000030867A1 ES 9800315 W ES9800315 W ES 9800315W WO 0030867 A1 WO0030867 A1 WO 0030867A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
opacity
sheet
glass sheet
tempered glass
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/ES1998/000315
Other languages
English (en)
Spanish (es)
Inventor
José Antonio ALONSO GOROSTIZA
Rafael Torres Sancho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guardian Llodio SL
Original Assignee
Guardian Llodio SL
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 Guardian Llodio SL filed Critical Guardian Llodio SL
Priority to ES98954496T priority Critical patent/ES2207003T3/es
Priority to DE69817880T priority patent/DE69817880D1/de
Priority to AT98954496T priority patent/ATE248717T1/de
Priority to PCT/ES1998/000315 priority patent/WO2000030867A1/fr
Priority to EP98954496A priority patent/EP1057657B1/fr
Publication of WO2000030867A1 publication Critical patent/WO2000030867A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/10—Writing surfaces thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/06—Blackboards rigid

Definitions

  • the invention relates to a process for obtaining a glass slate, in which the writing is carried out by means of a marker or similar tool, presenting as a fundamental characteristic that said surface is matt or dull in order to avoid glare or reflections, allowing that said surface can be used in addition to slide viewing-
  • the constitution or structure of the slate obtained in accordance with the aforementioned process is also object of the invention, said slate being basically constituted by a sheet of tempered glass with the writing surface matted and provided on the opposite side with an opacity layer, which can be of a different nature and even complement with other sheets or different layers.
  • plastic whiteboards usually white
  • surface characters can be written using a specific marker, such characters being easily removed by an appropriate eraser.
  • the writing surface being plastic in nature, does not resist the application of certain solvents such as acetone, alcohol, etc., much less logically certain acids.
  • the surface of the board produces glare or reflections that make it unsuitable for use, for example, as a slide projection surface.
  • the invention relates to a method of manufacturing a slate, as well as the structure of the slate obtained by said method, which has all the known advantages in this type of slate, but none of its drawbacks, since it does not reflect the light and therefore the images, supporting any solvent except hydrofluoric acid and being of high durability, practically unpleasant with the passage of time and use, being able to use as a surface to visualize slides without causing glitters or reflections, and all this as a consequence of the fact that the slate in question is obtained from a sheet of tempered and matt glass as will be exposed throughout the present description.
  • the procedure for obtaining or manufacturing the board is based on the following operational phases:
  • the most efficient matting occurs to the acid, since this method causes the formation of a very fine roughness or porosity and homogeneously distributed throughout the treated surface.
  • the coarsest mattress also the cheapest, is achieved by appropriate rollers in the process of laminated glass printing.
  • Sand matting is an intermediate solution in terms of quality and price.
  • the edges of the glass sheet are polished to avoid sharp edges.
  • a vitrifiable paint is applied, or what is the same as an opacity layer that is applied by screen printing or by any other system on the opposite side of the matte writing surface.
  • the glass sheet is tempered, so that during tempering a double effect is achieved, on the one hand the enamel vitrification, or what is the same its permanent fixation to the glass, and on the other hand the tempered itself.
  • the slate thus obtained is made of tempered glass, so that in case of breakage it is divided into multiple particles.
  • a matting or dulling process of both sides of the tempered glass sheet can be carried out, the opacity layer being applied on any of them, consisting of a vitrifiable enamel that is applied by screen printing.
  • two sheets of glass one tempered and the other of normal glass, can be used, so that on the first is where the matting will be performed to form the writing surface, both sheets being joined, as usual, by a suitable plastic sheet, preferably polyvinyl butyral (PVB), a layer that at the same time determines the opacity of the board, for which it will be colored, preferably in white.
  • a suitable plastic sheet preferably polyvinyl butyral (PVB)
  • PVB polyvinyl butyral
  • the tempered and matt glass sheet is screen printed on the opposite side of the writing and that
  • the union with the normal glass sheet is made with transparent polyvinyl butyral, which in this case will act as a link between the two glass sheets, because the opacity is produced by screen printing.
  • Figure 1 shows a concrete embodiment of a glass slate obtained in accordance with a preferred form of the invention, constituted in this case by a tempered glass sheet with matte on both sides and in one of them applied the opacity layer constituted by a silkscreen based on a vitrifiable enamel.
  • Figure 2. It shows a sectional detail of a slate portion in which a tempered glass sheet, a normal glass sheet and a plastic sheet, such as a polyvinyl butyral (PVB) sheet are involved, which, in addition joining both sheets of glass, determines the opacity of the board, being colored, preferably white.
  • a plastic sheet such as a polyvinyl butyral (PVB) sheet
  • Figure 3.- Finally shows a sectional view of a detail corresponding to a portion of slate constituted by a sheet of tempered glass, a sheet of normal glass, the tempered glass sheet having been screen printed on the opposite side of the writing, the union of both sheets of glass being produced by PVB film or film.
  • a section of slate can be seen in section, constituted by a sheet of tempered glass (1), whose two faces (2-2 ') have been subject to a matting process, to avoid reflections or glare on the constitutive surface of the faces (2-2 '), having provided that in one of them a layer (3) of a vitrifiable enamel is applied by screen printing, all of such that the face (2) will constitute the writing surface, while the layer (3) applied on the opposite face (2 ') determines the opacity of the board.
  • the slate can include a tempered glass sheet (1) and a normal glass sheet (1 '), the tempered glass sheet (1) being provided with the corresponding matte in its face (2) constituting the writing surface, while between both sheets of glass (1-1 ') there is a plastic sheet or film (4), preferably polyvinyl butyral, which is constituted as a connecting element and at the same time it produces the necessary degree of opacity, for which said PVB film will be colored, preferably in white color.
  • a plastic sheet or film (4) preferably polyvinyl butyral, which is constituted as a connecting element and at the same time it produces the necessary degree of opacity, for which said PVB film will be colored, preferably in white color.
  • the slate manufactured according to the embodiment shown in Figure 2 will have the characteristics of the glass laminated and, consequently, that in case of breakage the pieces of glass do not come off, but remain attached to the joining element or PVB film.
  • the plastic sheet or film (4) be white, preferably.
  • the board includes, as in the previous case, two sheets of glass (1-1 '), the first of tempered glass and the second of normal glass.
  • the tempered glass sheet (1) is matted on the writing face (2) and has a screen print (3 ') on the opposite side.
  • the joining of the two glass sheets is carried out with appropriate plastic film (4 '), for example with PVB film which, in this case, will be transparent, since it operates only and exclusively as a link between the two sheets of glass.

Landscapes

  • Drawing Aids And Blackboards (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne un tableau, que l'on obtient par dépolissage de l'une des faces (2) au moins d'une feuille de verre trempé (1), ce qui permet de déterminer la superficie d'écriture du tableau que l'on souhaite obtenir, d'éviter les reflets et éventuellement, de visualiser des diapositives sur cette superficie ou face (2) de la feuille de verre (1) constituant le tableau. Sur la face opposée (2'), qui peut être dépolie ou non, on applique une couche (3) de sérigraphie à base de vernis vitrifiable, laquelle couche (3) permet de déterminer l'opacité souhaitée. Le tableau peut également être constitué d'une feuille de verre trempé, d'une autre feuille de verre normal, et entre les deux, d'une couche d'opacité, qui peut elle-même être constituée du film joignant les feuilles de verre, en polybutyral de vinyle par exemple, film qui est, de préférence, de couleur blanche, voire transparent si l'on procède au traitement sérigraphique de la face postérieure à la face d'écriture.
PCT/ES1998/000315 1998-11-19 1998-11-19 Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede Ceased WO2000030867A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES98954496T ES2207003T3 (es) 1998-11-19 1998-11-19 Procedimiento de fabricacion de una pizarra y pizarra obtenida con dicho procedimiento.
DE69817880T DE69817880D1 (de) 1998-11-19 1998-11-19 Herstellungsverfahren von schreibtafel, und damit hergestellte schreibtafel
AT98954496T ATE248717T1 (de) 1998-11-19 1998-11-19 Herstellungsverfahren von schreibtafel, und damit hergestellte schreibtafel
PCT/ES1998/000315 WO2000030867A1 (fr) 1998-11-19 1998-11-19 Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede
EP98954496A EP1057657B1 (fr) 1998-11-19 1998-11-19 Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES1998/000315 WO2000030867A1 (fr) 1998-11-19 1998-11-19 Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede

Publications (1)

Publication Number Publication Date
WO2000030867A1 true WO2000030867A1 (fr) 2000-06-02

Family

ID=8302798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1998/000315 Ceased WO2000030867A1 (fr) 1998-11-19 1998-11-19 Procede de fabrication d'un tableau, et tableau obtenu conformement audit procede

Country Status (5)

Country Link
EP (1) EP1057657B1 (fr)
AT (1) ATE248717T1 (fr)
DE (1) DE69817880D1 (fr)
ES (1) ES2207003T3 (fr)
WO (1) WO2000030867A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108638708A (zh) * 2018-07-22 2018-10-12 宁波赞扬文具有限公司 一种多功能塑料写字板及其制作方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2216451C1 (ru) * 2002-11-28 2003-11-20 Общество с ограниченной ответственностью "Веди-СЛ" Способ изготовления крупногабаритных аудиторных досок
BE1016588A3 (nl) * 2005-05-13 2007-02-06 Polyvision Nv Werkwijze voor het vervaardigen van een visueel communicatiebord.
CH699483A1 (de) * 2008-09-01 2010-03-15 Troesch Glas Ag Ferromagnetische Einrichtung mit wiederbeschreibbarer Nutzfläche.
ES2565691B1 (es) * 2014-10-02 2017-01-13 Imagina Concepto Industrial, S.L.U. Revestimiento de vidrio multifuncional, sistema con el revestimiento y uso del revestimiento

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB500443A (en) * 1937-10-20 1939-02-09 Percy Rowed Lang Improvements relating to slates, blackboards, and other repeatedly useable writing boards and tablets
EP0033352A1 (fr) * 1980-02-01 1981-08-12 Weyel KG Tableau à écrire, en particulier tableau mural de grande surface
ES1002753U (es) * 1987-06-29 1988-06-16 R.B. Disenos, S.A. Y Cristales Curvados, S.A. (Cricursa) Panel mural en funcion de pizarra

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB500443A (en) * 1937-10-20 1939-02-09 Percy Rowed Lang Improvements relating to slates, blackboards, and other repeatedly useable writing boards and tablets
EP0033352A1 (fr) * 1980-02-01 1981-08-12 Weyel KG Tableau à écrire, en particulier tableau mural de grande surface
ES1002753U (es) * 1987-06-29 1988-06-16 R.B. Disenos, S.A. Y Cristales Curvados, S.A. (Cricursa) Panel mural en funcion de pizarra

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108638708A (zh) * 2018-07-22 2018-10-12 宁波赞扬文具有限公司 一种多功能塑料写字板及其制作方法

Also Published As

Publication number Publication date
EP1057657A1 (fr) 2000-12-06
EP1057657B1 (fr) 2003-09-03
DE69817880D1 (de) 2003-10-09
ES2207003T3 (es) 2004-05-16
ATE248717T1 (de) 2003-09-15

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