EP1046512B1 - Apparatus for transferring a mirror image of writing, image or motif from an intermediate carrier to any desired surface - Google Patents

Abstract

The device consists of a heatable high-pressure press mounted on a base frame (1) having laterally running box section membe (2,3). A table surface (17) is located in the base frame and is moveably mounted on roller guides. A press table (19) is attache the table surface via a spacer section (18) while a circular air spring (20) is provided beneath the table surface for lifting t press table up against a lower heated body (16). A traverse (14) is provided at the top of the base frame and supports both the lower and an upper (15) heated bodies in a manner whereby they can be lifted up and down.

Description

The invention relates to a device for transmitting on a carrier applied in mirror image using a black and white or color toner Written, picture or motif representations on any surface, such as B. paper, fabric, plastic, metal, ceramic or the like. Further The invention relates to a method for transmitting said Representations on any document.

DE-OS 41 18 922 describes a method for transferring motifs using an original pad on a new support an intermediate carrier described. The procedure is that the motif on the original support on the intermediate support copied, the motif transferred to the intermediate carrier from a Material selected from the group consisting of toner, pigment, and the motif-forming material on the intermediate carrier is purely physical transmits the new carrier, the intermediate carrier and the new carrier during the transfer process plane-parallel or tangential to each other are arranged. A certain procedure is that in a first step the lettering in a laser device known per se a film is copied, which forms an intermediate carrier. The applied two-component toner black in the photocopier by a Heat roller fixed at a temperature of 140 ° C.

In a second step, the film with the lettering-forming toner is placed on the surface of a hard cardboard. This arrangement is then subjected to a pressure of approximately 5 to 70 N / cm ² and a specific temperature which is between 95 ° C. and 115 ° C. for a certain period of time which is in the range from 3 seconds to 60 seconds to transfer the lettering-forming toner from the film onto the surface of the hard cardboard. For the transfer, a swivel lever press is generally used, which is pressed by hand onto the support receiving the image motif. Of course, such a device cannot be used to set the pressure precisely. In addition, it is practically not possible to apply larger pressures of approx. 2 tons or more to the surface of toggle presses.

Document GB-A-1 158 943 describes a heatable Swing lever press with an extendable printing table.

The object of the present invention is a device to create the type mentioned at the pressure and temperature and the time relationships can be set precisely. Moreover can with the device according to the invention a much better Transfer and a more brilliant picture, also in color any surface, for example on paper, fabric or even metal and ceramics.

To solve the problem, a device of the beginning proposed type, which is characterized by a heatable High performance and high pressure press, in one Base frame with transverse rectangular tube with two at an angle to it arranged rectangular tubes one by means of a ball roller slide pull-out table top is arranged on the via a spacer a printing table is attached, one under the table top circular air spring for lifting the pressure table against the lower one Radiator is located on an upper, laterally on two spindles an upper and an upper one between two rectangular tubes lower heating plate are attached, against which the printing table is pressed is, the traverse by means of a hand crank over two sprockets and a chain can be moved up and down.

With the device according to the present invention one can be essential better and stronger pressure distribution on the table top become.

According to a particular embodiment, the device on the Front of the table top a handle to pull it out and below a control panel for setting the pressure, the Temperature and the time relationships. This makes it possible to get an optimal one To achieve transfer of the image motif, also with colored toner.

The drawings are based on the example of a preferred embodiment the device according to the invention will be explained in more detail.

Fig. 1. eine prinzipielle Vorderansicht der Vorrichtung gemäß der Erfindung.

Fig. 2 zeigt einen Längsschnitt durch die Vorrichtung gemäß Fig. 1.

Fig. 3 zeigt einen Querschnitt von Fig. 1.

Fig. 4 zeigt einen Schnitt durch den unteren Bereich der Vorrichtung gemäß Fig. 1.

In the drawings shows

Fig. 1. is a schematic front view of the device according to the invention.

FIG. 2 shows a longitudinal section through the device according to FIG. 1.

3 shows a cross section of FIG. 1.

FIG. 4 shows a section through the lower region of the device according to FIG. 1.

As can be seen from the figures of the drawings, the device consists according to the invention essentially from a base frame 1 with two rectangular tubes 2, 3 running at right angles thereto The base frame consists of four rectangular tubes, 4, 5,6, 7 arranged at the top by a lid 8 with each other are connected. Within the vertical rectangular tubes 4, 5 are arranged two spindles 9, 9 ', the sprockets 10, 11 and which are connected by a chain 12. On the shaft of the sprocket 11 is a crank handle 13 for actuation the spindles 9, 9 '.

On the spindles 9, 9 'a cross member 14 is arranged, on which an upper Heating plate 15 and a lower heating plate 16 are attached. In the middle A fixed table top 17 is arranged on the area over a Spacer 18 a lowerable printing table 19 is attached, on which one further edition 19a can be arranged. Under the table top 17 is a tire-like air spring 20 glued to a seawater resistant Plywood body 20a arranged to raise the printing table 19. The Cavity of the air spring 20 can also be up to 50% with granules, plastic or seawater resistant glued plywood around the Reduce compressed air consumption.

On the front, the table top 17 has a handle over an angle 21 on to the table top by means of a ball roller extract 22 Pull the holder of the base to be printed out towards the front.

There is also an operating panel 23 below the table top various buttons 24 and rotary controls 25.

This control panel is used to set the pressure and temperature and the time relationships.

With the device according to the invention is also a method for Transfer any motif representations to any surface with different pressures, temperatures and times can be carried out, to transfer a color image to an aluminum sheet perform. The color image is first in a color copier or Color laser printer in any, enlarged or reduced scale on a carrier film, e.g. B. a coated paper film or Plain paper, applied in mirror image. This will be a color toner used, which has a good affinity for the coated paper surface and which is different from the pressure and heat Can lift off the paper surface. First on the printing table 19 the aluminum plate with the brushed and possibly with a layer treated surface. The one with the Intermediate carrier provided with mirror-image imprint. On this intermediate carrier is then expediently a woolen fabric and if necessary, put on another film. Then the printing table 19 raised and against the lower radiator 16 with a pressure of approx. 300 - 12 000 kg pressed. The temperature is depending on Use case 90 - 200 C. The duration is generally 1 sec - 60 minutes.

The mirror-inverted colored image is opened by this printing process pressed on the aluminum surface. To give the picture a high gloss a PE film is placed on the aluminum sheet and the printing table 19 with an approximately 50% increased pressure against the lower radiator 16 pressed. This process turns the aluminum beam reheated, and the surface is compacted, and the image smoothed by this process becomes shiny and surface strongly emphasized by external lighting. Moreover the scratch resistance is increased, which makes the surface abrasion-resistant. The improved weather resistance of the easy to clean surface.

The printing process can also be supplemented or be modified so that on both sides of a pad at the same time, z. B. printed on a 0.5mm thick aluminum sheet becomes. This is possible because the heat during the printing process Material of the pad penetrates and therefore also on the back can take effect. In this case, this becomes the first transferring back image placed on the printing table 19, the Underlay, e.g. B. the aluminum sheet and on this the second carrier film with the picture on it. Then in a printing process In the manner described above, both images on the front and Printed on the back.

The generation of a high gloss can also be carried out as described above simultaneously by inserting two PE films on the front and Back.

The device according to the invention thus enables a very large variation even the greatest pressures and strongest temperature effects, the on the material, for example plastic, ceramic or textile fabrics that can be exercised.

Claims (5)

1. Apparatus for transferring character, image or motif representations, applied in mirror-image fashion to a carrier by means of a monochrome or colour toner, to any desired base, such as, e.g. paper, fabric, a plastics material, a ceramic material or similar, characterised by a heatable high-efficiency and high-pressure press, in which a table board (17), which can be pulled out by means of a ball caster extension (22), is disposed in a basic frame (1) with a transversely extending rectangular tube with two rectangular tubes (2, 3) disposed at right angles thereto, to which board a printing table (19 is fastened via a distance piece (18), wherein a circular pneumatic spring (20) for lifting the printing table (19) towards the lower heating element (16) is located below the table board (17), wherein an upper and a lower heating plate (15, 16) are fastened to an upper cross bar (14) which is guided laterally at two threaded spindles (9, 9') between two rectangular tubes (4, 5 and 6, 7, respectively) and against which the printing table (19) is pushed, wherein the cross bar (14) can be moved up and down by means of a crank handle (13) via two chain wheels (10, 11) and a chain (10).
2. Apparatus according to Claim 1, characterised in that, at the front side of the table board (19), the apparatus has a handle (21) for pulling the latter out, that a control panel (23) for adjusting the pressure, the temperature and the time ratios is disposed underneath and a covering hood (26) is disposed above the cross bar (14) and the heating plates (15, 16).
3. Process for transferring motif representations to any desired base by means of an apparatus according to Claim 1 or Claim 2, characterised in that the colour image is firstly applied in mirror-image fashion to a carrier film, e.g. a coated paper film or standard paper, on any desired, enlarged or reduced scale, in a colour copier or laser printer, wherein a colour toner is used which has a high affinity with the coated paper surface and can be removed from the paper surface again through pressure and heat, whereupon the aluminium plate with the brushed surface, which is optionally treated with a coating, is firstly placed on the printing table, whereupon the intermediate carrier, which is provided with the mirror-image print, is placed on this plate, whereupon a woollen fabric or molleton and optionally a further film is placed on this intermediate carrier, whereupon the printing table is raised and pressed against the lower heating element with a pressure of approximately 300 - 12,000 kg, wherein, depending on the application, the temperature is 90 - 200°C for a duration of 1 sec.- 60 minutes, and the image which is thus applied is subsequently subjected to a high-gloss process, wherein a PE film is placed on the aluminium image, and the printing table is pressed against the lower heating element with a pressure which is increased by approximately 50 %, whereby the aluminium carrier is heated again and the surface is compressed and the image which is smoothed by this process is given a glossy, highly accentuated surface.
4. Process according to Claim 3, characterised in that a print is temporarily applied to both sides of a base, e.g. to a 0.5 mm thick aluminium plate, in that the heat penetrates the material from the base during printing and can therefore also take effect on the back, wherein the image on the back which is to be transferred is placed on the printing table (19), upon which image the base, e.g. the aluminium plate, is placed, followed by the second carrier film with the image applied thereto, wherein both images are then simultaneously printed onto the face and the back in a printing operation as described in Claim 3.
5. Process according to Claim 4, characterised in that, in order to produce a high gloss, a respective PE film is placed on the face and on the back and the pressing operation according to Claim 3 is concluded.

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