ES2239864B1 - Printing device for scored or corrugated cardboard sheets comprises printing plate incorporating bands or strips of lesser hardness than rest of plate in correlation with scores of cardboard sheet - Google Patents
Printing device for scored or corrugated cardboard sheets comprises printing plate incorporating bands or strips of lesser hardness than rest of plate in correlation with scores of cardboard sheetInfo
- Publication number
- ES2239864B1 ES2239864B1 ES200201768A ES200201768A ES2239864B1 ES 2239864 B1 ES2239864 B1 ES 2239864B1 ES 200201768 A ES200201768 A ES 200201768A ES 200201768 A ES200201768 A ES 200201768A ES 2239864 B1 ES2239864 B1 ES 2239864B1
- Authority
- ES
- Spain
- Prior art keywords
- cardboard
- plate
- printing
- scores
- rest
- 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.)
- Expired - Fee Related
Links
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000000123 paper Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 13
- 230000001788 irregular Effects 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 abstract description 5
- 235000019589 hardness Nutrition 0.000 description 11
- 229920002799 BoPET Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000005041 Mylar™ Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 240000005702 Galium aparine Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41G—APPARATUS FOR BRONZE PRINTING, LINE PRINTING, OR FOR BORDERING OR EDGING SHEETS OR LIKE ARTICLES; AUXILIARY FOR PERFORATING IN CONJUNCTION WITH PRINTING
- B41G7/00—Auxiliary perforating apparatus associated with printing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
Landscapes
- Making Paper Articles (AREA)
- Printing Methods (AREA)
Abstract
Description
Procedimiento y dispositivos para imprimir totalmente, en una sola operación, hendidos de onduladora y otras superficies irregulares de cartón.Procedure and devices for printing totally, in a single operation, creasing of corrugator and others irregular cardboard surfaces.
El invento tiene por objeto, conforme indica el enunciado, un nuevo procedimiento mediante el cual se consigue imprimir con un cliché especial, mediante una única operación, superficies irregulares, tales como los hendidos de onduladora, en planchas cartón ondulado.The object of the invention is, as indicated by the enunciated, a new procedure by which it is achieved print with a special cliché, using a single operation, irregular surfaces, such as corrugator creases, in corrugated cardboard sheets.
La invención propone al propio tiempo para llevar a la práctica el proceso indicado, el empleo de ciertos dispositivos, especialmente acondicionados para actuar como sufridores para contrarrestar los abultamientos y/o depresiones que presenta la placa de cartón, evitando, en el caso del cartón ondulado, que puedan deformarse por aplastamiento las láminas intermedias onduladas que constituyen el alma que proporciona gran resistencia mecánica a las placas de cartón.The invention proposes at the same time to carry to practice the indicated process, the use of certain devices, specially conditioned to act as sufferers to counteract the bulges and / or depressions that presents the cardboard plate, avoiding, in the case of cardboard corrugated, which can deform by crushing the sheets wavy intermediates that constitute the soul that provides great mechanical resistance to cardboard plates.
La invención, al propio tiempo, propone de ciertas disposiciones para lograr el comentado propósito, y a cuyo efecto presenta un nuevo cliché que ha sido perfeccionado en sus características de fabricación, organización y montaje, en el que se han creado sectores sobresalientes y otros con depresiones para asegurar la correcta adaptación del cliché a la superficie del cartón aun cuando ésta sea irregular, como sucede frecuentemente en las placas preformadas de cartón que han de ser sometidas para su configuración a un proceso de troquelado, en el cual ciertas partes de las placas, son recortadas y aplastadas creando así una superficie irregular.The invention, at the same time, proposes of certain provisions to achieve the aforementioned purpose, and for whose effect presents a new cliché that has been perfected in its manufacturing, organization and assembly characteristics, in which they have created outstanding sectors and others with depressions to ensure the correct adaptation of the cliché to the surface of the cardboard even if it is irregular, as often happens in preformed cardboard plates to be submitted for configuration to a die-cutting process, in which certain parts of the plates, they are trimmed and crushed creating a irregular surface.
En la actualidad, la impresión sobre estas superficies irregulares de la placa de cartón da como resultado que algunos sectores de ésta no reciban la impresión o la reciban defectuosamente por encontrarse a un nivel mas bajo que el resto de la placa a imprimir, dando lugar a una impresión defectuosa.At present, the impression on these irregular surfaces of the cardboard plate results in some sectors of it do not receive the impression or receive it defectively for being at a lower level than the rest of the plate to be printed, resulting in a defective printing.
La alternativa que se viene utilizando en la actualidad para efectuar un trabajo correcto de impresión de la caja conlleva el siguiente proceso:The alternative that is being used in the actuality to carry out a correct job of printing the Caja entails the following process:
1.- Obtener una plancha de cartón lisa, es decir, sin surcos marcados ni hendidos simples, dobles o triples.1.- Obtain a flat cardboard sheet, that is, without marked grooves or single, double or triple clefts.
2.- La plancha de cartón debe tener más área de materia prima, es decir, cartón ondulado para poder ser troquelada posteriormente produciéndose un sobrante o retal de materia prima.2.- The cardboard plate must have more area of raw material, that is, corrugated cardboard to be punched subsequently producing a surplus or retal matter cousin.
3.- Introducir la plancha de cartón en una máquina impresora sólo para imprimir.3.- Insert the cardboard plate in a Printer machine for printing only.
4.- Introducir la plancha de cartón en otra máquina plana o rotativa sólo para troquelar, lo que exige la necesidad de disponer de un troquel plano o rotativo.4.- Insert the cardboard plate in another flat or rotary machine just for die cutting, which requires the need to have a flat or rotary die.
5.- Introducir la plancha de cartón en otra máquina para pegarla.5.- Insert the cardboard plate in another machine to paste it.
En algunos casos, el proceso puede conllevar la opción de imprimir y troquelar en una misma máquina en la que se encuentran dispuestas estas dos operaciones en línea.In some cases, the process can lead to option to print and die on the same machine where these two operations are ready online.
Para la formación de este cliché especial se utiliza una materia prima de base compuesta por una o varias resinas de fotopolímero líquido de una dureza real inferior a 24º Shore A, dependiendo de las calidades de los papeles, del cartón, de los tipos de hendidos a imprimir, de la imagen y del diseño de la impresión.For the formation of this special cliche, use a basic raw material consisting of one or more liquid photopolymer resins of a real hardness less than 24º Shore A, depending on the qualities of the paper, cardboard, of the types of creases to print, the image and the design of the impression.
De acuerdo con el invento, se ha previsto que entre el cliché y el mylar o poliéster, comúnmente denominado "premontaje", se añaden unos suplementos que inciden sobre los hendidos de onduladora, compuestos por resinas y productos siliconados convenientemente mezclados que van en función de las características de la plancha de cartón, de sus hendidos e imagen o diseño a imprimir.According to the invention, it is provided that between the cliché and the mylar or polyester, commonly called "pre-assembly", add some supplements that affect the cleaver of corrugator, composed of resins and products suitably mixed silicones that depend on the characteristics of the cardboard plate, its creases and image or Design to print.
Los clichés así preparados tienen la particularidad de que con ellos se puede imprimir cualquier tipo de hendido que se haya producido en la placa preformada de cartón, al haber sido sometida a la máquina onduladora.The clichés so prepared have the particularity that with them you can print any type of split that has been produced on the preformed cardboard plate, when have been subjected to the corrugating machine.
La invención inicialmente prevé el proceso de imprimir una plancha de cartón con hendidos producidos en una máquina onduladora.The invention initially provides for the process of print a cardboard sheet with creases produced in a corrugating machine
El proceso actual para poder imprimir los hendidos practicados por la onduladora consta de los siguientes pasos:The current process to print the cleft practiced by the corrugator consists of the following Steps:
1.- La materia prima, que es una plancha de cartón, se fabrica en una máquina llamada "onduladora". En esta plancha de cartón están prefijados de antemano y marcados unos surcos en el sentido del giro de la onduladora llamados "hendidos", que pueden ser sencillos, dobles o triples, es decir, todo tipo de hendidos.1.- The raw material, which is an iron cardboard, is manufactured in a machine called "corrugator". In This cardboard board is pre-set and marked grooves in the direction of the rotation of the corrugator called "split", which can be single, double or triple, is say, all kinds of cleft.
Estos hendidos de onduladora son los que, una vez que sale la plancha de dicha máquina, de una pasada servirán para doblar las diferentes zonas de la plancha para contribuir a formar la pieza o caja de cartón.These undulating creases are the ones that, once that leaves the plate of said machine, in a pass will serve to fold the different areas of the plate to help form the piece or cardboard box.
2.- Después de ser introducida la plancha de cartón en la máquina transformadora, la impresión de la misma es opcional. Los problemas a la hora de imprimir la plancha de cartón son los siguientes:2.- After the plate of cardboard in the transformer machine, the printing of it is optional. Problems when printing the cardboard plate They are as follows:
\bullet Cuando la impresión se acerca a los hendidos de la onduladora, la impresión resulta deformada, desfigurada e irreal. En definitiva, no es correcta al resultar irregular.When the printing approaches the cleft of the corrugator, the impression is deformed, disfigured and unreal. In short, it is not correct as it turns out irregular.
\bullet Si la impresión ha de continuar y traspasar los hendidos de la onduladora, cuando pasa por encima de estos hendidos no cubre la superficie de éstos y resulta defectuosa, incorrecta e irregular.If printing is to continue and pierce the creases of the corrugator, when it passes over these clefts do not cover their surface and it turns out defective, incorrect and irregular.
Se ha intentado solucionar este problema de impresión de una sola pasada mediante sistemas rudimentarios sin éxito con las siguientes consecuencias:An attempt was made to solve this problem of single pass printing using rudimentary systems without Success with the following consequences:
1.- La impresión no es correcta. Es irregular y defectuosa.1.- The printing is not correct. It is irregular and faulty
2.- La canal de la plancha de cartón se aplasta de tal modo que el cartón pierde sus propiedades de resistencia.2.- The cardboard plate channel is crushed such that the cardboard loses its properties of resistance.
3.- El mercado no acepta este producto al considerarlo defectuoso.3.- The market does not accept this product at consider it defective.
Con el nuevo cliché que propone la invención todos estos inconvenientes son resueltos produciéndose los siguientes beneficios:With the new cliché proposed by the invention all these inconveniences are solved producing the following benefits:
\bullet En todos los casos, reduce el coste que supone la compra del troquel. El troquel no será necesario puesto que la caja saldrá semiconfigurada de la onduladora para ser inmediatamente después impresa.In all cases, reduce the cost that It involves the purchase of the die. The die will not be necessary put that the box will come out semi-configured of the corrugator to be immediately after printed.
\bullet En todos los casos, disminuye el coste y el tiempo de fabricación y manipulado, pues la caja se imprime y fabrica de una pasada en una sola máquina.In all cases, the cost decreases and the manufacturing and handling time, as the box is printed and one pass factory in one machine.
\bullet El cliché se adapta perfectamente a cualquier máquina de imprimir, sea rotativa o lineal, y gracias a ser su dureza real inferior a 24º se adapta perfectamente a los rodillos que proporcionan la tinta al cliché para posteriormente plasmar la impresión sobre la caja preformada. Asimismo, dicha dureza permite coger la tinta necesaria para lograr una impresión uniforme en toda la superficie de la caja.The cliché adapts perfectly to any printing machine, whether rotary or linear, and thanks to be its real hardness less than 24º adapts perfectly to the rollers that provide ink to the cliché for later capture the impression on the preformed box. Also said Hardness allows you to take the ink needed to achieve an impression uniform over the entire surface of the box.
\bullet Este cliché se adapta perfectamente a la superficie a imprimir sin dañar el canal de la plancha de cartón, evitando se pierdan sus propiedades de resistencia.This cliché adapts perfectly to the surface to be printed without damaging the plate channel cardboard, avoiding its resistance properties.
Para complementar la descripción que se está realizando con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:
La figura 1ª.- Muestra un cliché en proceso de montaje, en sección, de acuerdo con la invención en el que se han delimitado distintos sectores que se corresponden a sectores que poseen distintas durezas de materia prima base con la que está constituido el mismo, siempre inferiores a 24º reales.Figure 1 .- Shows a cliché in the process of assembly, in section, according to the invention in which they have been delimited different sectors that correspond to sectors that they have different hardnesses of base raw material with which it is constituted the same, always inferior to 24º real.
La figura 2ª.- Se corresponde con el cliché
representado en la figura precedente, igualmente en
sección,
una vez ya montado.Figure 2 .- It corresponds to the cliché represented in the preceding figure, also in
section, once assembled.
A la vista de las figuras reseñadas puede observarse como el dispositivo objeto de la invención presenta una base denominada "mylar" o "poliéster" comúnmente denominado "premontaje" señalado con el número (1), cuya base presenta un mayor área que el resto del cliché que se posiciona sobre el mismo. Esta base es común en el proceso de montaje de un cliché.In view of the figures outlined you can observe how the device object of the invention has a base called "mylar" or "polyester" commonly called "pre-assembly" indicated with the number (1), whose base It has a larger area than the rest of the cliché that is positioned about it. This base is common in the process of assembling a cliche.
Sobre dicha base de poliéster se posicionan el resto de los elementos que constituyen el cliché correspondiente. Este cliché presenta una lámina (2) de grueso adecuado, fabricada con una materia base compuesta de una o varias resinas de fotopolímero líquido con una dureza real inferior reales a 24º Shore A. Esta plancha presenta la particularidad de que puede poseer distintos tipos de dureza, como pueden ser los tramos representados con los nºs. (3) y (4). En este caso los tramos señalados con (3) poseen una menor dureza que los tramos (4) todo ello debido a que dichos sectores (3) inciden sobre una base relativamente plana de la superficie de la caja a imprimir. Los sectores (4) están estratégicamente distribuidos para que coincidan con los hendidos practicados en la caja a imprimir, hendidos que han sido producidos en la máquina onduladora.On said polyester base the rest of the elements that constitute the corresponding cliché. This cliché presents a sheet (2) of suitable thickness, manufactured with a base material composed of one or several resins of liquid photopolymer with real hardness lower than real 24º Shore A. This iron has the peculiarity that it can have different types of hardness, such as sections represented with no. (3) and (4). In this case the sections marked with (3) have a lower hardness than sections (4) all This is due to the fact that these sectors (3) have an impact on a base relatively flat on the surface of the box to be printed. The sectors (4) are strategically distributed to match with the clefts practiced in the box to print, cleft that They have been produced in the corrugating machine.
Para realizar correctamente la impresión sobre estos hendidos es preciso determinar entre el "mylar" o "poliéster" (1) de premontaje los elementos (5) necesarios que coinciden con la disposición de los hendidos practicados en la caja que se desea imprimir.To correctly print on these clefts it is necessary to determine between the "mylar" or "polyester" (1) preassembly the necessary elements (5) that coincide with the arrangement of the clefts practiced in the box You want to print.
Por ello y de acuerdo con las figuras 1ª y 2ª se dispone una dureza diferente e inferior entre los sectores (3) y (4) del cliché, coincidiendo los tramos (4) de menor dureza con dichos dispositivos (5). Esta diferencia de dureza permite que el cliché recoja del rodillo correspondiente la tinta justa al pasar por el mismo la superficie del cliché. Con ello se consigue que no recoja más tinta de la exclusivamente necesaria. Asimismo, esta diferencia de dureza permite que la superficie libre del cliché se adapte, en las zonas de los dispositivos (5) y sectores (4), a la superficie de la caja de cartón ondulado a imprimir, con que se evita un aplastamiento de los canales ondulados que constituyen el alma de resistencia de dicha caja.Therefore, and according to figures 1 and 2, it has a different and inferior hardness between sectors (3) and (4) of the cliché, coinciding the sections (4) of less hardness with said devices (5). This difference in hardness allows the cliché pick up the right ink from the corresponding roller as it passes through the same the surface of the cliché. This will ensure that you do not pick up more ink than exclusively necessary. Also, this difference Hardness allows the cliché free surface to adapt, in the areas of the devices (5) and sectors (4), to the surface of the corrugated cardboard box to be printed, which prevents a crushing the wavy channels that constitute the soul of resistance of said box.
De acuerdo con la figura 2ª, mediante las pequeñas prominencias (6) existentes en los sectores (4) del cliché se consigue que la superficie del cliché se deforme sin lesionar el producto a imprimir, adaptándose a la superficie de la caja que se desea imprimir.According to Figure 2, through the small prominences (6) existing in sectors (4) of the cliché the cliché surface is deformed without damaging the product to be printed, adapting to the surface of the box that is You want to print.
Con todo ello se consigue una impresión uniforme en toda la caja mediante una sola operación, consiguiéndose un importante beneficio en la rapidez de impresión puesto que se evitan los complicados procesos que en la actualidad se vienen practicando consiguiéndose una impresión perfecta directamente desde la máquina onduladora que ha producido inicialmente ciertos hendidos en la caja a conformar.With all this a uniform impression is achieved in the whole box by a single operation, getting a important benefit in the speed of printing since they are avoided the complicated processes that are currently being practiced getting a perfect impression directly from the corrugating machine that has initially produced certain creases in the box to conform.
Los elementos (5) son susceptibles de modificación en sus líneas pudiendo ser de cualquier forma de acuerdo con las exigencias de cada caso.The elements (5) are susceptible to modification in its lines and can be of any form of according to the demands of each case.
Claims (1)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200201768A ES2239864B1 (en) | 2002-07-26 | 2002-07-26 | Printing device for scored or corrugated cardboard sheets comprises printing plate incorporating bands or strips of lesser hardness than rest of plate in correlation with scores of cardboard sheet |
| ES03380183T ES2283733T3 (en) | 2002-07-26 | 2003-07-24 | PRINTING DEVICE FOR WAVED CARTON SHEETS. |
| AT03380183T ATE358580T1 (en) | 2002-07-26 | 2003-07-24 | DEVICE FOR PRINTING NOTCHED CARDBOARD PANELS |
| DE60312931T DE60312931T2 (en) | 2002-07-26 | 2003-07-24 | Device for printing notched cardboard plates |
| EP03380183A EP1384581B1 (en) | 2002-07-26 | 2003-07-24 | Printing device for scored cardboard sheets |
| PT03380183T PT1384581E (en) | 2002-07-26 | 2003-07-24 | Printing device for scored cardboard sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200201768A ES2239864B1 (en) | 2002-07-26 | 2002-07-26 | Printing device for scored or corrugated cardboard sheets comprises printing plate incorporating bands or strips of lesser hardness than rest of plate in correlation with scores of cardboard sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2239864A1 ES2239864A1 (en) | 2005-10-01 |
| ES2239864B1 true ES2239864B1 (en) | 2006-07-01 |
Family
ID=35069671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200201768A Expired - Fee Related ES2239864B1 (en) | 2002-07-26 | 2002-07-26 | Printing device for scored or corrugated cardboard sheets comprises printing plate incorporating bands or strips of lesser hardness than rest of plate in correlation with scores of cardboard sheet |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2239864B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605616A (en) * | 1969-09-08 | 1971-09-20 | Pannier Corp The | Method and apparatus for printing surfaces having line depressions |
| GB2176202B (en) * | 1985-06-05 | 1989-07-26 | Uniroyal Plastics | Photosensitive elastomeric polymer composition for flexographic printing plate |
| GB2192364A (en) * | 1986-07-11 | 1988-01-13 | Tien Chin Yu Machinery Manufac | Offset printing device for printing corrugated board |
| US5288571A (en) * | 1986-10-02 | 1994-02-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Photoresin printing plate for use in printing a corrugated board |
| ES2136235T3 (en) * | 1994-12-13 | 1999-11-16 | Macdermid Imaging Technology | SOFT PHOTOPOLIMERIC RELIEF PRINTING PLATES FOR FLEXOGRAPHIC PRINTING. |
| JP2001232967A (en) * | 2000-02-23 | 2001-08-28 | Ichiro Fukushima | Printing plate for cardboard such as corrugated fiberboard |
-
2002
- 2002-07-26 ES ES200201768A patent/ES2239864B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2239864A1 (en) | 2005-10-01 |
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