DE1461280A1 - Multi-layer sheets made of paper or the like with cavities for holding preferably powdery substances and processes for the production of such multi-layer sheets - Google Patents

Description

Multi-layer sheets of paper or the like. With cavities for receiving of preferably powdery materials and processes for the production of such multilayer sheets.

B e s a h r e i n g e: For many applications, for example for Cleaning or polishing, also for cosmetic applications, are among others. Leaves or The like. Made of paper, cellulose, Texizlstoffen etc. impregnated with suitable substances or soaked, which is to be carried out with the sheets in question when using Cleaning, polishing, etc.

- Support the process or what is actually intended for the application Represent means.

The substances used here are either liquid g or yellow or bloated in fluids, with the liquid components after evaporate completely or partially from the impregnation.

The use of dry, fine-grained or powdery substances is in not possible in the manner described, as this is insufficient when dry Adhere to the leaves and mostly due to dusting before use o the subject of the present invention are multilayer sheets, which have interlayer cavities in which preferably dry fine-grained where powdery substances are stored.

The leaf layers, which close the cavities on the surface, are designed in such a way that they are injured during use and thereby the in release stored substances in the cavities.

In this way it is possible to make powdered fabrics in multiple layers Keep sheets of paper, pulp, etc. ready for use, with that being the one in question Substance-containing sheet for the application of the powdery substance is used, for example for applying to surfaces, for rubbing, grinding, cleaning, polishing, etc.

The following powdery substances can be used, for example: fine-grained ones Abrasives, polishes, powders for cosmetic or medical purposes, etc. Skin treatment and body care are a particular area of application. The multilayer sheets As a substance carrier, it is then expedient to use soft paper or cellulose Or the like. As they are known in the form of handkerchiefs, diapers, etc. the substances placed in between are with these Areas of application, preferably skin-caring powders that contain disinfectant, deodorizing or perfuming agents can be providedX These multilayer sheets Can be used as a base for rabbit beds, diapers for infants, make-up wipes etc. as well as toilet paper. In the latter case, the Use of medicinal powders or the like offer special advantages, e.g. for hemorrhoids, Sores (so-called wolf) etc. In nursing are especially in Deoubitus-endangered Patients can easily change documents in one embodiment according to the present Invention of great value.

The fact that substances with pungent smelling components (for example Disinfectant) by suitable choice of layer materials until use Remaining odor-proof encapsulated is particularly worth mentioning. an example is a Multilayer sheet according to the present invention described, which consists of at least two If there is paper or the like. And that in interlayer cavities Contains medically or cosmetically effective powder. Such a sheet can be, for example ; find use as toilet paper or the like.

As an example, FIG. 1 shows a partial cross-section through such a device Merschichtibaltt from two layers of paper. One of the two paper layers (l) from preferably greater strength is with a second paper layer (2) of preferred lower strength in the surface zones (3) by gluing, embossing or the like. permanently connected. Layer (2) contains, for example, embossed zones between these zones Knobs (4). The cavities (5) formed by these knobs preferably contain the powdery substance a Figue 2 shows the area anch Fig.1 in plan view.

FIG. 3 shows another plan view, for which also the cross section according to Figure 1 applies. The round knobs (4) are here, for example, elongated ribs, which can have interruptions (6) in their length.

Figure 4 shows another embodiment in partial cross-section. The less firm layer (2) is here with the firmer layer (1) at the zones (7) connected in such a way that cavities (8) arise, which have a larger surface area than the connecting zones (7). e In Figures 5 and 6 are two examples of the execution according to Fig. * shown in a view from below. The connecting zones (7), in which the layers are firmly connected to one another, are hatched. she divide the surfaces like a honeycomb or similar, while the cavities (8) have a flat one Have pillow shape Fi 7 shows in partial cross-section that all according to Figures 1 to 6 The types of execution described must always be produced in reverse can, in such a way that the.

Layer of greater strength (1) has the embossing through which the voids are formed while the layer of lower strength (2) one Level is. Of course, both layers can also be embossed at the same time so that the cavities are each: a part in the upper and in the lower layer are formed.

It is also possible to use both layers in special cases Embossings to be provided in such a way that part of the number of cavities in the upper Layer, while the remaining cavities are in the lower layer.

For all the embodiments described as examples, the following applies to.

Use the following: For example, it should be a part of the skin of the body be rubbed with a powder. This is in the multilayer sheet that is used included, namely in the cavities (5) respectively. .(8th).

The multilayer sheet is bonded to the topsheet (i.e., the layer lower firmness) placed on the skin and in rubbing movement offset. In the process, the upper class tears open, mainly at the places closing off the cavities.

The powder emerges from the cavities and is distributed as a result the movement on the entire surface of the top layer and is on the treated The skin area is finely distributed without the inevitable result of the usual scattering Loss of substance occurs. It is also avoided that the powder is undesirable Places (e.g. clothing).

The materials for the lower layer (1) and for the upper layer (2) can be freely selected within wide limits with regard to the respective purpose be adjusted. Different layer materials can also be combined with one another, will.

Furthermore, the multilayer sheet can consist of more than two layers, so that several layers of cavities are formed will. the Cavities lying in different layers can be filled with different substances Kind to be filled. When using g, one top layer tears after the other, so that the different types of. stored substances exposed one after the other become and come into effect. In this way it is also possible to have two or more different substances in the multilayer sheet are separated. to store that is only should mix with each other during application.

The lower layer (1) with the preferably greater strength can can be combined with one or more top layers (2), which in the application largely pulverized - the pulverized product (preferably fibrous Structure) mixed with the substances emerging from the cavities and used is also used.

With a suitable choice of the layer materials, the cavities can bezwo some of the cavities are also filled with substances of a liquid or pasty consistency will. There are many possibilities here, especially when there are several cavity layers The formation of mixed products is a process for the production of multilayer films of the kind described.

A particular component of the invention are the manufacturing processes of multilayer sheets of the kind described.

The production can take place in single sheets of a suitable format. In many cases, production in "endless" webs will be more advantageous.

Basically, the manufacturing process is divided into three main operations : a. Embossing or similar one or more individual layers (e.g. knobs, ribs, honeycomb embossing or pressing). bo filling of the depressions formed by the embossing or pressing with the substances intended for the respective purpose. c. Surface connection of the individual layers with each other by gluing, stapling, embossing or the like.

These three operations can be performed one after the other using suitable devices be performed.

However, all three operations can also be carried out with special production systems can be combined in one operation.

For the sake of clarity, the Describe manufacturing operations individually one after the other and only in special cases Combination of several operations mentioned.

On an individual description of the under a. mentioned manufacturing operation can be omitted, as these are known procedures.

FIG. 8 schematically shows an example of the embossing of one as a top layer (2) provided band. This runs from the supply drum (9) between the embossing rollers (10) and (11) with positive and negative profile.

FIG. 9 shows schematically the embossing process by way of the vacuum process. The tape (2) is fed to the mold (12) at a step-wise advance. This stands with a vacuum template (13) and a yakuumpump (not shown) in connection. A valve (14) is arranged between the template and the mold. after finishing each This valve is opened briefly at the feed step. The result of the shape (12) Air flowing to the template sucks the tape into the designated locations Shape.

In Figue 10 it is shown how the embossing process according to Figure (9 with the Filling the generated wells can be combined.

Above the mold (12) there is a storage vessel (15) which the Contains substance (16) to be brought into the cavities. With every formative suction process at the same time, a certain amount of the substance is conveyed into the embossed depression, so that the band (2) leaves the device with the wells already filled.

Figure H shows an embossing process (schematically) with compressed air.

Here the filling substance is gradually added via the compressed air vessel (17) (16) by actuating the valve (20) compressed air with filling substance into the mold (19) pressed with the counter-mold (18), the same effect achieved as in Figure (10) will.

FIG. 12 shows schematically a method for filling existing ones Depressions in the band (2). The belt becomes continuous under the storage vessel (21) drove past. The filling compound (16) runs out of this vessel onto the belt and is van wiped off the downstream brush or squeegee (22) so that only the filling (5) remains in the deliveries.

Figure 13 shows another method in which, for example, the Combination of several manufacturing processes is shown. That from the supply roll (9) incoming belt (2) runs continuously (or in steps) under the storage vessel (22) over. The dosing device (23) is preferably synchronized with driven by the belt and distributed in predetermined amounts by the filling compound (16) individual portions (24) on the belt (2). The tape thus provided with filling compound arrives then between the rollers (25) and (26).

The roller (25) is here in the example as a smooth roller with a hard surface executed while the roller (26) has a softer coating (27) on its circumference. During the rolling process, the portions (24) of the filling compound distributed on the belt (2) pressed into the soft roller together with the corresponding points on the belt (2). So filled depressions are created at the same time.

The other belt (1) runs from the supply roll (28) at the same time with belt (2) between the rollers (25) and (26) by a not shown here Device are the strips (1) and (2) with their surface parts located between the depressions firmly together tied together.

FIG. 14 again shows another method. whereby the Combination of the embossing and filling of the depressions in the band (2) shown is. The positive embossing roller (29) produces together with the negative embossing roller (30) the depressions in the band (2), which comes from the supply roll (9). the The roller (30) is designed as a sheet metal electrode in such a way that the with the filling compound (16) Points to be provided electrically conductive, the remaining parts of the surface electrically are designed to be insulating. The high voltage device (31) effected by electrostatic Transferring the transport of the filling compound from the storage vessel (32) to the belt (2).

In a similar way, the electrostatic method can also be used, for example for applying the filling compound in conjunction with another of those described here Manufacturing process find use.

Claims (18)

Multi-layer sheets made of Pabier or the like. With cavities for receiving of powdery fabrics and methods of making such multilayer sheets. NOTE: 1 Multi-layer sheets of paper or the like, which consist of several layers that only interfere with one another on part of their surfaces are connected, with self-contained cavities between the individual layers are formed, gekennzcichnet that in the cavities substances of preventive fine-grained or powdery texture or liquid or pasty consistency are stored that have no permanent connection with the layers. 2. multilayer sheets according to cont. l, marked by the fact that the individual layers, between which the cavities are formed, of different sizes Have mechanical strength, so that when the multilayer sheet is subjected to mechanical stress a predetermined surface is injured and the embedded in the cavities Lets substances come out. 3. multilayer sheets according to claim 1, characterized in that the individual layers between which the cavities are formed are different have great resistance to moisture and (or) heat, so that when moistened and (or) heated, a predetermined surface is damaged and allows the substances stored in the cavities to escape to the outside. 4. Nehrachichtblätter according to claims 1 and 2 or 3, characterized characterized in that the different sizes of mechanical strength or resistance against the effects of moisture and (or) heat by choosing different materials is given for the individual layers and (or) by different types of treatment of the layers in the manufacture, especially by creating more vulnerable ones Places or surface zones by means of pressing or embossing treatment or the like. Generated will. 5. Multi-layer sheets according to claims 1-4, characterized in that that one or more of the layers is spatially deformed by embossing, pressing or the like are, so that when the layers are joined together, high spaces of greater thickness housing expansion develop. 6. Multi-layer sheets according to claims 1 - 5, characterized in that dal3 all cavities between the layers with the same substance (substance) more or less full. 7. Multi-layer sheets according to the paragraphs 1 - 5, characterized in that that several different substances (substances) or different consistencies, grains or the like of the same substance are contained in different cavities, which are more or less related to each other when used in a given relationship mix. 8. multilayer sheets according to claims 1-5 and 7, characterized in that that the cavities containing different substances etc. are preferably in different Layer resp. Layers are arranged, so that when using the different Substances etc. are released one after the other. : 9. Multi-layer leaves after the asphalt 1 - 8, characterized in that one of the layers, preferably one of the the application to be injured layers, consists of a materia, respectively. with a Material is impregnated or impregnated when sending with the from the soles emerging substances bezw a mixture. a connection to achieve a predetermined Forms effect. 10. Multi-layer sheets according to claims 1 - 9, characterized in that that the individual layers pass through to the zones between the cavities Gluing, stapling, Fragon, welding or the like. Are connected with one another. 11. Multi-layer battery according to claims 1-9, characterized in that the individual layers are in between Zones located in cavities are connected to one another in such a way that when used the area connections are also violated. so that also under the injured Surface layer enables the contents of the individual cavities to be mixed will. 12. Multi-layer sheets according to claims 1-11, characterized in that that one or more layers by spraying, spraying or the like. One suitable material can be generated. 13. Multi-layer sheets according to claims 1-12, characterized in that that the cavities are arranged so that in certain sections of the surface between Perforations or the like are arranged in the hollow arteries, which cut off or Tearing off given Blattfficken respectively without injury. Exposure of cavities enable. 14. Process for the production of multilayer sheets according to the claims 1-13, characterized in that the treatment g of the individual layers (embossing, Pressing, etc.), the filling of the cavities and the joining of the surfaces in individual Operations are carried out one after the other. 15. Process for the production of multilayer sheets according to the claims 1-13, characterized in that several or all of the multilayer blitter required operations are summarized in one operation. 16. Process for the production of multilayer sheets according to the claims 1-13, characterized in that the deformation of one or more layers by Vacuum and (or) compressed air exposure takes place. 17. Process for the production of multilayer sheets according to the claims 1-13, characterized in that the deformation of the relevant layer thereby takes place that an applied to the layer, from individual profiles of the filler existing pattern is pressed or rolled into the layer. 18. Process for the production of multi-layer sheets according to the HnsprAchen 1 - 13 characterized in that the filling of the cavities BEZW. the application of the filler is carried out on the relevant layer by means of electro-static processes.