CZ559188A3 - Tampon printing apparatus for transferring defined amounts of printing medium to a flat unit - Google Patents

Abstract

In the printing pad device described, the surface of the pad (20) is recessed while retaining essentially the same external form and volume. Also described is the use of the pad for at least partially coating a substrate (22) with a predetermined pattern. The substrate (22) is a printed circuit board for manufacturing integrated circuits, a component of a pharmaceutical presentation and/or dosage form, a label with raised characters, a prepolymer or similar.

Description

BACKGROUND OF THE INVENTION The present invention relates to a tampon printing apparatus for transferring a defined amount of a printing environment to a printing unit, and to the use thereof.

BACKGROUND OF THE INVENTION

Pad printing methods have been known since 1968 and are also suitable for imprinting uneven surfaces.

the flexible swabs transferring the printing environment are adapted. A complete printing device is described, for example, in DS-OS 19 39 437.

The skeleton is deeply etched

The print environment is rewinding, eating? dose is printed pvioc-UAr

Throttle, / fzSwing suction. in block printing forms, says in this environment štočku.roztíráčí absorbed medium is completely removed from the cliché and the swab was transferred to an article c? IEER: ^{1 '1} has pctisk <s> 4 = £. An overview of the use and properties of the pad printing process is found in prosoek + u. TA & PQPRINT CmbH, Daimlerstrasse 27 / 1.In Korntal-Milnchingen, which was taken into account to avoid repetition in its entirety.

Tempon glazing devices are very advantageous in appearance ^and , because they are low space-consuming, they can be easily integrated into production lines and can also be closed, helping to visualize highly effective or toxic printing environments, such as γ-etching inks, polymerization starters, and protection of the operator

But also to reduce the rate of volatilization.

Up_ yet. but has not tried the ink jet printing device. Even the amount of printing environment; With surprise it turned out that using already. known tamponage -print di * i

Of whom. D-F U On. . . <s o. iirwnífrii ´ nøoqn ^ d ^ vkCV ^ βΙβΛηή h ~ nt -

P ~ ^r '..... - - 26 3 // nostiCaž.'do fitly in a printing process with a variance + 2 ^ or less.

It is also possible, as disclosed in the co-pending German patent application, to produce high-dose medicaments or control membranes for dosing on the same day of application. active substances with a constant basis weight on the corresponding substrates.

The use of the prior art means, namely the variation of the tampon material (in the case of the use of softer tampons, the transfer of more printing medium as well as the viscosity of the printing medium) could only be imparted to the substrate by a noticeably elevated but however, this amount was not sufficient to coat larger basis weights, such as above 100 g / cm @ 2, so that the tampon printing process, despite its excellent properties, was not suitable for use in, for example, producing thicker layers of materials in one predetermined pattern - and until now there has been no intention to transfer layers using this method.

expensive screen printing methods were used

-3 or complicated multi-step coating solutions.

Accordingly, the basic task of the invention is to develop a known apparatus to the extent that a larger amount of printing environment can be transferred to the substrate than! this has been the case until now using a conventional swab. SUMMARY OF THE INVENTION

This task has been accomplished by a tampon printing apparatus for transferring a defined amount of printing environment to a printing unit using a tampon having a tampon roughened to increase its active surface area and thereby exhibiting an increased capacity for 115-centimeters while maintaining the same external shape and volume.

The surface roughening is formed by a grid, grooving or groove formed at least on a portion of the tampon surface for transferring the printing environment.

Tampcnážní printing device is used for at least CES ^- ^ Xtečné applying printing medium to a substrate in a predetermined pattern wherein the substrate is a circuit board for výro5 r _zz either integrated circuits ipart pharmaceutical administration and / or dosage form (label with raised lettering or oolymerový oolotovar. '.

The surface enlargement is further achieved by treating the sweat body of the tampon or forming an enlarged surface of the tampon to shape the tampon body in a suitable form.

Such tampons, in contrast to conventional smooth-surface tampons, are suitable for carrying up to more than three times the amount of print media as compared to the amount of media that could be transferred using the same mold.

As a result of the development of the known tampon printing apparatus according to the invention, it has been made possible for the first time to be used.

device, optionally a method. brand new A / C

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pio ni / ir v

These coatings are preferably coated. This is the case, for example, in the manufacture of color-coated labels, integrated circuits, where photocraps or even conductor material can be printed, and can also be used to apply blistering agents in the polymerization process. for the application of etching patterns to the production of etched patterns for the transfer of color to the orifice plate.

of pharmaceuticals, feeders and / or dispensers f

For example, in the case of rectal and vaginal forms of application, these are understood to be systems which transfer substances through the mucous membranes.

A particularly preferred use is in the manufacture of patch transdermal therapeutic systems.

By means of the invention, a number of printing environments are possible. The printing process translates to increase unexpectedly and often maintain a surprisingly constant dosage within narrow ranges.

By means of the device according to the invention, it is possible to

y.

For the first time, a printing medium containing the active substance may be produced in the desired form for the first time.

- without she's losing it ^ # - and? It has hitherto been found in the surface coating methods used hitherto, for example in transdermal therapeutic systems, thereby saving the expensive active substance and avoiding waste disposal of the active substance.

Still, it is now possible to apply a plurality of printing media such as, for example, multiple colors, dyes and paint, adhesive and adhesive containing aseptic or active ingredients and simultaneously separate and spaced apart from each other in a single production step, thereby saving one production step. Plates, as well as tampons, can be tempered if certain heat-sensitive materials are to be used, such as certain adhesives.

It is likewise possible to cool these, as well as the entire apparatus, when temperature-sensitive materials are to be processed or worked up.

By selecting a suitable material for the tampons, various requirements can be fulfilled, e.g. ⁰ rubber which are known to the expert as ⁰ natural "or synthetic rubber and in particular silicone Oryza, which can be selected by PC £ the added properties such as / ^ workability, odclnof r zs ~ bi towards spit

Sinks, heat resistance or t

sufficient flexibility at low temperatures.

The form of tampons can be selected with respect to the substrate being processed, all conventional forms, being frustoconical, can be used. and area ”and ovoid swabs with enlarged print surface.

By using this method, the devices according to the invention can transmit a surface weight of about 100 g per square meter to about 10 g / cm @ 2. more further improvements can be achieved by conventional process improvements known to those skilled in the art, such as the use of a softer tampon, other printing environments, or nodoscopes.

Overview of the drawings

Other features and advantages of the invention are. explained by the attached drawing. They show: ^

Fig. 1 Tampon printing apparatus when applying printing medium to substrates Fig. 2 Tampon printing apparatus of Fig. 1 when adopting a new printing medium from 5 ^ o ^ kiby ” ^: ...........

FIG. 3 shows a tampon according to the invention with an enlarged top surface.

t · f cbr. 4 another tampon according to the invention with increased surface area, Fig. 5 a cross-section Na- plastic transdermal therapeutic system made according to the invention, _χ and FIG. 6 is a top Further, the layers of active ingredients with different active compounds dvě.ma made tampcnázním printing device according to the invention and i cbr. 7 shows a further preferred feed form produced by the device according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

1 and FIG. 1 is a schematic illustration of the deposition of a layer

In the printing environment by means of a tampon 2 produced according to the invention, on a flat substrate 22. In this process, a flexible ovoid tamnon 2-0 is printed from a silicone knife with an elacco printing environment in the region

23, is the remainder removed from the recess of the depressing device 24 (see FIG. 2j), formed in accordance with the desired pattern of the printing environment, on a flat a substrate which, after lifting the tampon 20, will leave a uniform height

P '

-7 thickness of the printing medium layer. In the same way it is possible to print uneven substrates, possibly round substrates or corrugated substrates, as well as shapes of dishes, etc.

FIG. 3 shows a preferred embodiment of a tampon 20 according to the invention, on which the surface area of the tampon 20, which is pivoted for transfer of the printing medium, are formed by the depressions of the depressions increasing the sowing height 23 by means of which . The amount of printing medium absorbed in the process is determined by the etching depth and the etching shape of the printing plate 24, from which the printing medium is perfectly scanned after being applied to the printing plate 24 in a uniform thickness using a spatula. and removed and transferred in this form.

Referring to FIG. 4, a further preferred embodiment of the tampon is shown in FIG. which is essentially here. Here, the tampon 20 is also magnified.

It is also intended to absorb large quantities of the printing medium.

for • s r

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FIG. 5 shows an active substance-containing patch (containing active substance) which can be produced by means of the device according to the invention. Here, a thick ironized paper is pre-removed as well as a circular layer 18 which controls the passage of the substance by means of a constant thickness and its chemical-physical properties, and finally (by printing a reservoir layer 14 containing the active substance by swabbing). Press-8c-Ad z.arí zením_ finding by yourself -a násleáuj ICI iahqi m-amino-tion impermeable layer are aluminum řféífcí · polyester laminate layer 18 .jejíž _β Y / vlqsttjostj. noiize guaranteed axis OPI \ ysokéžjtlot; 3Ík 14 t 14 14 14 14 14 14 14 14 14 14 14 ................ ................ ................ ................ ................ ................ ................ ................ i ó + v .. ι-! λ / x J, V. V.X \. .-., .. W «, J -LX ----- _____ \ ____________ active substance lzg_rovnŠjý obtained in farmacfiutiΛ cally usable FSM ^ n ^ J ^ Orme, ^ en ^ p ^ i ^v -1 kýcjn-ti ° H & ~ fcpvýeí \ and P axes NYC η nactarct content RTA nūnam ° TFA / ^ VRS tvy f ^ is moá 1.

can be applied by the device according to the invention.

FIG. 6 shows the patch as in FIG. 5 prior to application of the backsheet 10 and is shown in FIG. here shown is a seal with two active substances 14 and 14 '.

This embodiment is feasible in a single step of the process of applying the active substance 14 to 14 by the sponge-printing device according to the invention, even if the self-adhesive ring 16 is impermeable to the substance.

Fig. 7 is another pharmacological dosage form which can be made by the apparatus of the invention, coated with a sugar sheath having a two-layered core 34, which can be produced by printing the layer 36 onto a circular support without waste of material. or printing presses.

Another embodiment of _{the Z /} ^ combinations and the use of the inventive device, a person having his aware o'nledem_na

It is common to practice the myths of the subject matter of the invention. - / -v

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Claims (2)

PATENT CLAIM A tampon printing apparatus for transferring a defined amount of printing medium to a printing unit by means of a tampon (20), characterized in that the tampon (20) is provided with a roughening which increases its effective surface area and thus has an increased capacity for printing. printing environment while maintaining the same external shape and volume. Device according to claim 1, characterized in that the roughening is surface the surfaces form a grid, groove or gnocchi on at least a portion of the surface of the tampon (20) to puncture the printing environment. AND Use of a tampon printing apparatus according to claim 1 or 2 to at least partially apply the printing medium to a substrate in a predetermined pattern, wherein the substrate is an integrated circuit conductor plate, a pharmaceutical feeder and / or dosage form component, a bulging label or a polymer semi-finished product. ί, LOH 17/87 ψΕ ψιππ-κκ 1/1 Fig.7