HUE025840T2

HUE025840T2 - Use of a printing paper printed with a pattern for sheetlike components

Info

Publication number: HUE025840T2
Application number: HUE09772060A
Authority: HU
Inventors: Udo Tuente; Richard Schwitte; Frank Petersen
Original assignee: Huelsta-Werke Huels Gmbh & Co Kg; Flooring Ind Ltd Sarl
Priority date: 2008-07-02
Filing date: 2009-05-29
Publication date: 2016-05-30
Also published as: EP2293947B1; DE102008030955B3; EP2942201A3; PL2293947T3; WO2010000360A1; DK2293947T3; HRP20160010T1; EP2942201B1; ES2557596T5; ES2557596T8; EP2293947A1; PL2293947T5; PT2293947E; EP2293947B2; ES2557596T3; EP2942201A2

Description

Use of sí pttníiog paper printed with a pattens for sheeiike components

The invemion relates to the use of à priming paper pAited with: a decor for planar components. Fifotemore, the invention relates to a method for manufacturing decor paper for use in planar components, in particular for floor, wall, ceiling or furniture appllemlons, recording: fo foe pre^ebaraeterMng clause of Claim 2* A method of the type mentioned at the beginning and a related printing dome are already known from EP I 749 676 A1. the known method is used to print printing paper digitally, the said paper being used to manufacture· planar components, such as lining boards, panels and the like. W I ?4f 626 foi deals with providing as inkjet printing method, the printed resulton the surface of the objects; to he printed being intended fo meet the highest quality requirements with regard to the appearance, f or this purpose, provision is made for a paper web that is absorbent to liquid synthetic resin along: its entire thickness; to be imptepaied with liquid synthetic mim hm. m® MÚP êsM- foe synfoede resin does not penetrate the paper web completely, so that the other side of the paper web is at least largely free of synthetic resin, The known method is intended to create surfaces which, by means of the choice of foe; paper and of the ink liquid and possibly a pre-treatment of the surface to be primed, are in each case matched optimally to tic known printed result.

However, In connection with the half resin-treated paper web known from EP f 749 676 A1, it: has been established: that, depending: on, foe: paper material used and the Ink used, it is possible, especially at: a high ink density and/or a high proportion of water, for the ink coming Into contact with the paper web to run in the upper region, resin untreated or only slightly resin treated, and in this way for the so-called blotting: paper effect to result The consequence is a relatively latsatisfaetory printed result. in order to avoid the blotting paper effect, it is otherwise also known to ose a printing paper which has an ink-reception layer on its primed side. This is usually a so-called pigment coating. In this regard,, réference is made, for example. to DE 199 16 546 C2.

However, both In the ease of the printing paper known from EF 1949 6®6* A1 and also the printing paper known horn DE 199 16 546 €2 it Is disadvantageous that these papers are eoMparatively expensi ve. Boái the partial resin treatment of the underside needed before the printing and the pipsent coat on the upper side lead to additional costs, which has a detrimental effect, especially in the ease of atnass poduced artiele such as printing paper, for the aforementioned applications, in which large quantities of priming paper are needed. ÜS 21M7/Í 76994 A1 has already dlsetpsed a method for producing wali-eovefinp, the printing paper being printed by a digital printing device. The printing paper is heated in order to dry the printing ink, T he object of the present invention is to provide a decor paper for planar components which has a high printing quality and can fee manufactured simply and economically hy an appropriate method, in order to achieve the aforemeoioned object, the use of a porting paper as a decor paper for planar components, in particular for floor, wall celing of furniture applications, which printing paper km been printed by means of a digital printing process by a digital printing device and which printing paper has been heated before, during and/or after printing and is resm-umreated and free of an mi-reception layer and is printed with a decor, is provided, wherein the printing paper, after printing, is treated with resin, cut to the desired dimensions and is pressed together with plates to form the planar components.

The invention represents a departure from, die: prior aft, since, despite the : additional outlay, it has: hitherto been deemed necessary to use the printed pper layer at least partially resin-treated and/or with, an ink-reception layer for the applications as decor paper. ifi on1er m achieve the aforementioned obfeet:, In a mÄod offen type mentioned at the beginnings the mvehtion provides thai, fór printing, à reslnmnireated printing paper Is; eseti, which is fee fern art M-reeepinn layer os % printing side, and that the printing: paper is 'M&Wä before, during and/or ater printing, and/or the printing Ink Is heated Immediately after; being deposited on ire prising paper. This method Is deined in detail In Claim 2. Is fee present invention:, as opposed to the prior art, a Conventional gravure printing paper wifeotS coating is used ibr the digital priming, flfeerto, the staring point teas the Intrinsically correct assumption that normal plating paper is not snitahle for digital pining, since this paper aets like a blotting paper as it is printed, Is this ease, not only dp fee inka ran during the deposition of ihe: printing Ink, it is also such that the paper extracts moisture from the printing Ink, which leads to lengthening or expansion of fee paper, in this way, corrugation of the printed printing paper then results, liia ultimately leads to a printing paper feat can no longer he used. 1'herelore, despite fee additional outlay, it was hitherto deetned to be necessary to use fee printed gape layer at least partially resin treated and/or with art: Ink-reception layer lor the application of fee use as decor paper lor planar components.

In connection with the: present invention, it has now been established feat; fee aforementioned problem can be solved by the printing paper being heated before, during and/or after printing and/or by the pf Inf ing ink being heated immediately alter being deposited on the: printing paper; M& s. result of this heating, very rapid drying of fee ink on fee printing paper takes place, so feat,; depending on paper type and heating temperature, the; aforemendonad problems do not occur or decor: only to a slight entent. In feialSj ft has been established that the printed remit is virtually as good as when a printing paper wiferipk-receprion layer is used. 'In fee best case, the aforementioned heating leads to Immediate drying Of thé Ink. on the printing paper as soon an the ink has been discharged by the print head and has been deposited on the upper side of the printing paper. In agy ease, by means of the present örvendem, the result is the quite important advantage feat neither complicated pák! resin treatment before printing nor fee application of an inkweception layer Is required,, so that the pinring paper to he used in the Invention Is very eeonomieal; 'fel ö|der Co achiefcg îspld.-dt^Idg' Ä tellpg-Öifc special ffatums of the digital printing process into account, ln: particular when using wmerfoased inks/priniing inks, it is beneficial i f foe heating: of die printing paper is perform®# from the upper side and/or lower side of the printing paper. la this ease, foe: fdryiogl heating should:preferably be performed at a temperature of more than 35®€s in particular between: díFÜ and 60CC. %ry good results which* firstly* lead to rapid drying and, secondly, however, do not impair the print, have heetr asfneved at temperateres between 49*C and 54^(1

Achieving: aP optimal páhted resell beside foe: drying temperature, is also dependent oft: the drop size or the drop weight of the printing ink, on the one hand, and the priming speed, on foe other hand, According to foe invention, it has been: estafeitahed font the drop size of foe pruning ink during printing should he hetween 4.0 ng add 50 ng. while the printing speed should be higher than 3 tfofo. The printing speed is pmlerably between 4 and 50 nri/h, and in particidar Is between 6 and 3(1 ndfo.

In order to ensure the most efleotive heating; and: to prevent heating up snmnnsdmg ec|nipmeftt, the heating of the printing paper is performed in a drying room, which is located inside a hpnsing which smrounds foe printing device, he. the actual digital printer of the printing device, lllimaiefy, in fois case fols is a narrow, elongated housing corresponding approfomtdely to foe dimensions of foe pouter, which ultimately restricts the thermal energy applied during the heating to the area of foe printer end foe priming paper located there.

Sipes, during foe drying of the printing mk, a eompamrively large proportion pf Ikpid evaporates, foe inveuiou; provides for the air inside the drying room to be permanently eimalated during is also mtier^oM: to mean foaf fresh air

Is supplied and air loaded with moisiue is discharged. 1 goes without saying that the aforententioned method features in principle also relate to foe use mentioned at foe beginning.

Further features and advantages of foe present invention can be gathered from the following description of an exemplary embodiment by using dfo dfawing, which émm a schematic side view of a digital piming device LIk digital priming device 1 has a sifesirueture 2 with a paper gpide :$ for priming: paper 4. Furthermore, the digital priming device ! has a carriage guide 5» which is fixed to the substructure: 2,. Tire carriage guide 5 extends over the entire width of the substructure 2 arid is located above the paper guide '2, A printer carriage # can he moved along the carriage guide 3:. Connected to the printer carriage: 6 is a® ink tank 7, which can have: an: appropriate dumber of printing inks. The fM.thatte:jpÉÍer«^ria|e 6 has at least: one print bead for spraying ink/printing ink onto the printing paper transported, through the digital páhtihg device 1 is not illustrated.

Connected upstfemn of the: digital: printing device I is: a paper feed unit S, while & paper discharge: unit: 9 is connected: downstream. The printing paper 4 is supplied in roll form to the paper: feed unit §, is printed in the digital: printing device 1 and is roiled: up again as decor paper on the paper discharge eniffe Ifolibwing the completion of the printing^ the ruled: pruned printing: paper 4 or decor paper is removed from the paper discharge unit f and resin treated, the printing: paper is then cut to the desired dimensions and is finally pressed with appropriate plates to form planar components for floor, wall, ceiling anther furniture applications, in the embodiment tlnstrated, it is now the ease that two heating devices 10, 11 are provided to heat ire plnting paper 4 before, during and after the printing and also to heat the priming ink following: the deposition on the priming paper 4, it goes without saying that, in principle, it is also possible to provide further heating devices, tor example in the area of the paper feed unit or between the pager feed unit and the digital printing device 1.

The heating devices 1C), 11 both extend at least suhstantially over the entire width of the paper guide 3. Therefore, the: heating devices 1¾ H ulftmafely run honsverselv with respect to the conveying direction F. Since the paper guide 3 can have a maximum width of greater than 3 m, the two heating devices 10, 11 have a corresponding length. The heating device 10 is arranged after the print head or the print beads in tbe conveying direction F and serves in the first instance and substantially to dry the printing ink following:: the deposition on the upper side of the printing papp 4 I« the present case, φη heating device- ff la constructed as m IR heater, which is assigîted a blower 12 for #© apply of fresh am The blower 12 itself, the length of which corresponds at least: substantially to the length of the heating device 1(1, is apanged above the heMit^ Érytce 1.0, both struetnrai units in turn being arranged above the printer carriage 6. 1rs order that the blower 12 and the thermal energy from the heating device 10 are aimed directly at the upper side of the just-printed printing paper 4, the blowing direction of the blower 12 is aimed vertically downwards. In order to assist this alignment, at least one guide plate 13, which is aimed vertically downwards, Is provided.. Finally, the heating device 10 and the blower 12 are located only a fow centimetres alter the print head of the pintér carriage 0 hr the conveying dove lion F, in order to be able to dry the deposited pm at mg mh immediately aller the deposition on the printing paper 4.

Since the heating device 10 is located in the vertical direction above the printer carriage 4 at least in sdhtc areas, and. the printer carriage 6 is therefore subjected directly to the thermal influence of the heating deyiee 10, located above the printer carriage 6 and also above the ink tank 7 there is a thermal protective covering 14, which in the present case is of angled or staircase design and thermally insulates the areas of printer carriage 6 and of ink tank 1 that are directly adjacent to the heating device Iff Here, it goes without saying that the width, of the thermal protective covering 1.4 corresponds at least substantially to the width of the printer carriage 6. lire thermal protective covering 14 is firmly connected to the planter carriage 6 and can be moved together with the iaUcr.

Located in the substructure 2 of thé: digiM: pinfing: device 1, in the area of the paper guide 3 and before the printer head in the conveying direction f of the printing paper 4, is the further heating device 11, which is provided to pre-heat the underside of the printing paper 4. In the exemplary embodiment illustrated, the farther heating device If extends in: the conveying direction F only until shortly before the printer carriage 4 However, In principle it is also possible for the further heating device I f also to extend o ver a greater area of the paper guide 3, Le, through until under the printer carriage 6.

Otherwise, iá the embodiment ilUstrafed: it is such that the digital printing device 1, together wi th foe heatfog: device Mi Is awanged in a housing 15, at least la soma mám·. The housing 15 extends at leist subsfenlialiy aver the entire width of the digital printing device I and therefore ultimately runs transversely with respect to tie conveying direction P. Apart from a slot, not illustrated in detail, tor foe printing paper 4 to be led through, foe present housing 15, rectangular in cross section, is closed on the upper side and underside and on the fett side and rear side. In this way, a drying room 16 results between the paper guide 3 and foe housing 1 $ on the inner side. At the trout, the housing 15 and therefore the drying room 16 are open, at least in some areas. In foe figure, foe one screen I? on the front side is illustrated. The screen 17 ends above foe printer erutlage b, so that the latter is aeeessihle as necessary. A corresponding sereeu Is provided on foe opposite side, The housing I S itself has a width between 40 cm and 50 cm and a height between 50 cm and 60 cm with a length which corresponds agpfeimately to the length of the digital printing device 1. In the pfosent ease, foe length of foe digital printing device 1 is about MS m, while foe width of the paper feed unit is about 2. .1 m.

According to the process, during the printing a temperature of about. 5'2°C is applied via the ; heating device Ilf and a temperature of about 5CTC fo applied via foe forfoer heating: device it. In this: case, by means of the prefoeating: of the underside of foe printing: paper 4. the further heating device 1:1 assists the drying of the printing ink following the: deposition of the latter on the upper side of the printing: paper 4.

Tite printing: paper 4 itself is a resinumtreaiad paper that is free :febm daiferecephon layer on its printing side, on which the printing ink would run without the drying and which, on account of the high proportion of water in the printing ink 4, would expand arid then corrugate without the drying, which would make further preeesdlhg: impossible..

List, of reference symbols '1 Digital priming device 2 Snbslroctnre 3 Paper guide 4 Printing paper 5 Carriage guide 6 Printer carriage 7 lak tank 8 Paper feed unit 9 Paper discharge unit 10 Healing device 11 Healing device 12 Blower 13 Guide plate 14 Thermal protective covering 15 Housing 16 Drying room 17 Screen F Conveying direction

Claims

Patent Enforcement. Dummy paper is a dummy paper for decoupling paper, especially for slides, laths, ceilings or laths, which has a dummy paper with one (i) digital squeezing device, a digital printing process, and a printing paper (a), and / or. is heated, :: and which is not treated with resin and rescued from a tin-tanning layer, is treated with a resin printing ink resin, to the correct size for the plates, with M plates Itesxesyospfe · igy & pfeift · We get items

2, For the production of live # ®5 surface elements, especially for use on pads, decks, ceilings or furniture, using roller paper, where the production is to be sampled using the (4) digital printing technique for digital (1) digital display devices » In the case of the paint, and where: (4} the detergent paper before, during, and / or during the molding, and / or the printing material (when the 4 µm is printed on the paper) the azo is fetish, soaked with a resin is not a hand of the resin ( 4j, which is free from print and tactile layers of print, and is now handled with ghdnl, printing the appropriate file and cutting with the ury ury i amp & A method according to claim 1, wherein the heating of the plunger (4) is by means of the upright clamp starting from the top and / or the bottom of the pepper, and / or 35aC of the pellet as a result of the heating, expelled between 40 ° C and 0 ° C, 4 ·,. -fez precedes! -sassdii process, characterized by: * printing ink droplet printing. The process according to claim 1, wherein the printing rate is between 4, ng and 51 ng, and the print speed is higher than? mocha, preferably 4 and 51 nk / h, and especially between α and 30 mVt. solvent or water ink. The method according to any one of the preceding claims, wherein the heating paper (4) is heated by means of (16) a device (ISt bnrkolatteklpez a ||) and is circulating in air during the firing process: (1H) Inside the Dry Chamber: