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WO1993023240A2 - Corps profiles a base de papier et leur procede de fabrication - Google Patents

Corps profiles a base de papier et leur procede de fabrication Download PDF

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Publication number
WO1993023240A2
WO1993023240A2 PCT/DE1993/000423 DE9300423W WO9323240A2 WO 1993023240 A2 WO1993023240 A2 WO 1993023240A2 DE 9300423 W DE9300423 W DE 9300423W WO 9323240 A2 WO9323240 A2 WO 9323240A2
Authority
WO
WIPO (PCT)
Prior art keywords
paper
profile body
body according
embossing
cavities
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.)
Ceased
Application number
PCT/DE1993/000423
Other languages
German (de)
English (en)
Other versions
WO1993023240A3 (fr
Inventor
Peter H. Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE9211312U external-priority patent/DE9211312U1/de
Application filed by Individual filed Critical Individual
Priority to EP93911745A priority Critical patent/EP0643644A1/fr
Publication of WO1993023240A2 publication Critical patent/WO1993023240A2/fr
Publication of WO1993023240A3 publication Critical patent/WO1993023240A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0077—Shaping by methods analogous to moulding, e.g. deep drawing techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50—Internal supporting or protecting elements for contents
    • B65D5/5028—Elements formed separately from the container body
    • B65D5/503—Tray-like elements formed in one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products

Definitions

  • the invention relates to thin-walled profile bodies made of a paper-based material according to the preamble of claim 1, a fiber-reinforced material for producing the same and a method for producing the same.
  • Previously known shaped packaging or packaging parts which have relatively thin-walled deep-drawn parts or other shaped cavities for receiving the objects to be packaged, often consist either of plastics that are easy to deep-draw or can be shaped in some other way (for example packaging parts with one or more recesses for Inclusion of small objects such as buttons, thumbtacks, hair clips and the like, which are often provided with a cover made of cardboard or cardboard, packaging inlays.
  • packaging for accommodating, for example, foods, such as cookies, chocolate, chocolates, packaging parts, the lower parts of packaging with cover sheets made of metal, such as the lower parts of blister packs for taking medication, or packaging in the form of tubes), or made of metal foils (eg tubes for semi-liquid foodstuffs etc. and packaging trays for foodstuffs) or from combinations of these two materials with each other or with third materials such as paper or cardboard (e.g. plastic-coated metal foils, blister packaging for medication and the packaging listed above made from a combination of plastic and paper or cardboard).
  • plastics are made from mineral oil derivatives, the raw material of which comes from dry sources.
  • packaging in which plastic, metal and / or paper form a unit is a problem when disposed of as waste, since the individual materials are difficult or impossible to separate. Recycling is therefore very difficult, decomposition by natural means (composting) cannot be carried out either, and if metal is present, problematic metal oxide residues may arise during combustion.
  • An example of this are egg cartons, which are produced by forming the pulp on sieves and subsequent dewatering, see e.g. DE-A-38 37 647. This process provides a package whose surface is not very attractive and unsuitable for many purposes.
  • the deformation (embossing, pressing) of prefabricated cellulose-based materials is for the production of relatively thick-walled relief bodies, for example packaging (in particular for accommodating foodstuffs) made of cardboard or a multilayer material which contains at least one cardboard box or contains another cellulose layer with a thickness of a few tenths of a millimeter.
  • the packaging material is pressed with a (positive) stamp (male) into a (negative) counter-mold (female), embossed, deep-drawn, if necessary under the influence of moisture and / or heat (see, for example, EP-A-82 209, EP- A-156 000, DE-A-39 22 644 and DE-A-40 28 236).
  • paper including in this application a cellulose-based material (possibly in combination with hemicellulose and lignin) with a weight that is suitable for everyone Case is at most 150 g / cm 2, is understood) is known per se, but so far defined paper has not been embossed with a male and a corresponding female, but only with a female against a relatively soft counter surface such as rubber, cotton fabric or Paper.
  • capsules usually made of glassine paper, for the individual packaging of chocolates and biscuits, which usually have a flat, often circular or elliptical base and angled side walls, which have a wave structure with wave peaks running from the bottom to the top and - Form valleys, (for the production of the capsules see, for example, Walter Hess, Die Toilet für, Technischer Verlag Herbert Cram, Berlin 1963, pages 81 - 84).
  • the void formation arises from a buckling process, namely the buckling of the side walls from the base part.
  • the corrugation of the side walls serves to trap excess paper material and does not form a cavity in the usual sense, since the corrugation is open on one side.
  • the tensile and compressive forces on the paper are thereby kept much lower than when a cavity is formed in the usual sense, which increases around its entire circumference from one in relation to its deepest part Edge is surrounded, would be the case by pressing.
  • the object of the invention is to provide a profile body of the aforementioned type, in particular in the form of packaging material, which does not have the disadvantages mentioned above, the basic material of which consists as far as possible of renewable raw materials and which can be disposed of in an environmentally friendly manner, and an economically advantageous process for its production .
  • the He indation also relates to a method for producing the profile body.
  • the invention further relates to a fiber-reinforced paper-based material which is particularly suitable for processing with the method according to the invention.
  • paper can also be embossed to a much greater extent than is known in the prior art without tearing (bursting) by pressing with a male and female mold (without prior folding into a preform of the profile body or cutting the paper) or pressable (or, in analogy to the plastics sector, "thermoformable 11 ) and that cavities formed in this way remain dimensionally stable, even if they are not fixed in position by bonding (eg gluing, gluing) to other bodies.
  • bonding eg gluing, gluing
  • paper is understood to mean fibrous materials processed in the manner known for paper, the fibers of which are obtained in particular from wood, but also from other vegetable or animal fibrous materials (for example wool), the fiber content preferably being made from cellulose (if necessary in
  • Cardboard differs in the range from 150 to 230 g / cm 2 primarily by a lower specific weight and the associated greater thickness and rigidity of paper; please refer
  • Weight limit also applies. Generally this is
  • Basis weight of the paper used according to the invention no more than 130 g / cm 2, more specifically no more than 100 g / cm 2 and ms particular no more than 80 g / cm 2.
  • further preferred upper paper weight limits are dependent on the number of
  • Paper layer or the added thickness of the paper layers generally does not exceed 300 ⁇ m, preferably 230 ⁇ m and in particular 180 ⁇ m.
  • the cavities of the profiled bodies according to the invention which, as already noted above, are surrounded by a generally elevated margin in relation to their deepest part in accordance with the general understanding of cavities around their entire circumference, do not have a corrugated structure formed around the entire circumference of the hollow body (with Wave structure is a structure in which the processed material in its entire thickness rises or falls alternately above or below a middle level in the form of wave peaks or valleys, which can also taper to a point, with two side walls of the wave peaks or valleys there is a distance visible to the naked eye), but they can optionally have a ruffled or crinkled surface without the occurrence of a wave structure as defined above and formed around the entire circumference of the hollow body.
  • the geometry of the cavities is wide Varyable, even cavities that expand downwards, for example "bottle-shaped", can be produced in principle, which is explained in more detail in the discussion of the method.
  • profile bodies according to the invention which have only one embossed cavity and are preferably used for packaging purposes, this generally has at its deepest (highest) point a clear height of more than 0.5, more particularly 0.8 cm and in particular 1.5 cm and preferably a geometry in which the material base and one or more floors are arranged in parallel and the corresponding side walls are arranged at an angle to the material base of 90 to 115 ° (including the shape of a cylinder and a truncated cone), or the geometry of a spherical segment .
  • Preferred profile bodies are also those which have more than 4 cavities and are used for packaging purposes; preferred geometries here are those mentioned above and shapes with a curved bottom, preferred clear heights at the deepest or highest point of the hollow body being at least 2.5 mm (for example for blister packs for medicines) and 5 mm (for example for the individual reception of small everyday objects such as buttons etc.) and 1.5 cm (e.g. for holding chocolates, pastries, etc.). Furthermore, cavities that are drawn over or over the plane of the paper over an area equal to or less than 5 cm 2, in particular also 1 cm 2, are particularly preferred. A preferred ratio of the smallest diameter of the void surface on the paper plane to the depth of the void is 1.5: 1 or less.
  • the prefabricated material from which the profiled bodies according to the invention are formed is made of one or more layers of paper and optionally one or more reinforcing layers of lower rigidity than that of the stiffest paper made of natural fibers used in the layer material, which can be glued (preferably glued) or unglued, and the material that connects these layers
  • a material which consists of a paper layer, a paper layer and a
  • Reinforcement layer two layers of paper or two
  • Paper layers with an intermediate reinforcing layer is built up.
  • the main types of paper are packaging papers and special papers and beyond, especially with more than one paper layer, also graphic, especially printing papers. Papers that are more than 80% wood-free sulfite or sulfate pulp are preferred for many applications, especially when only one layer of paper is formed. In contrast, graphic paper with a relatively high wood content, when laminated with another layer of paper, is often used advantageously.
  • the types of paper that are suitable for a paper layer of the profile bodies according to the invention, in particular if they are designed as packaging or packaging parts, are selected primarily with regard to the required properties.
  • special papers for special purposes for example water vapor and gas impermeability
  • graphic papers for example for the outer paper layer of a multilayer material to be printed
  • _ material for the profile bodies according to the invention.
  • plastic-free parchment paper is suitable as an inner layer for packaging heavily greasy or water-containing goods
  • parchment and parchment replacement paper are suitable as an inner layer for packaging less greasy or moist foods.
  • plastics in the papers for the profile bodies according to the invention cannot be avoided in every application, for example very water-vapor or gas-tight papers can to date be produced practically only with the use of plastics. If such papers are used, those with compostable plastic parts are preferred. Transparent paper is preferred for many packaging purposes, since the goods can then be seen inside the packaging; however, the transparency of paper never reaches that which can be achieved with plastics.
  • colored papers and papers provided with conventional paper auxiliaries and coatings or impregnations can also be used, if this is appropriate.
  • discolorations and additives that can be disposed of in an environmentally friendly manner are particularly preferred.
  • the stiffness of the profile body which is desired for a specific purpose, is of course influenced by the thickness of the selected paper layer (s), since the stiffness is known to depend in third power on the thickness of the paper.
  • a surprising increase in stiffness, particularly in the area of the embossed cavities, can often be observed through the processing of the paper according to the invention, which may be in connection with a reinforcement layer, so that after successful embossing, a profile body according to the invention made of a flexible starting material has a stiffness which corresponds to that of an unprocessed material of much greater thickness.
  • the tensile strength (ISO 1924, 1981) and burst strength (ISO 2758, 1983) that are desired are experimentally determined properties and can be found out by the manufacturer or by the DIN catalog listed above.
  • Another criterion for paper selection is the deformability of the same. Not all papers can be embossed equally well (pressable, "deep-drawable”). In general, the formability due to embossing increases with increasing tensile strength or burst strength, whereby papers with a large ratio of fiber length to fiber thickness (e.g. 100: 1) are usually particularly easy to process. The deformability is generally also increased by increasing the number of layers with a constant total weight of the paper and by a reinforcing material which may be used.
  • paper layer which is in contact with the goods to be packaged or, if there are several paper layers, for all of them: parchment, parchment replacement, parchment, oil or with Wax coated or impregnated paper, tracing paper, wood-containing graphic paper and tissue paper, if it is processed together with a reinforcement layer, whereby corrugated forms of the listed paper types can also be used.
  • the profile bodies according to the invention are constructed from more than one paper layer, these paper layers can be connected to one another, for example at the edges of the finished profile body, e.g. glued, be. However, the paper layers are preferably laminated over the entire surface, i.e. glued together.
  • the lamination can be carried out using the lamination processes customary for paper, e.g. Wet lamination and wax lamination (see e.g.
  • a reinforcement layer with a lower stiffness than that of the stiffest paper layer made of a natural fiber material of plant or animal origin, such as materials made of animal hair, cotton, hemp, linen or cellulose, can be formed in it of knitted fabrics, braids, fine and coarse-mesh fabrics, felts, random fleeces, fiber tapes or individual fibers, which are not covered and only on the Packaging edges can be glued or laminated with the adjacent layer (s), whereby the above-mentioned lamination processes can be used.
  • such materials have been known for a long time (see, for example, DE-A-16 35 609 and DE-A-20 23 854).
  • Cellulose fibers, for example bandage gauze (not glued) and bookbinding gauze (glued), and linen are particularly preferred as the reinforcing layer.
  • Paper materials for example one of the latter
  • the reinforcing fibers are flexible and / or elastic within certain limits, so that they adapt well during embossing and can give the material an overall higher tensile strength or burst strength.
  • a material with two laminated layers of parchment, parchment or parchment replacement paper is also particularly preferred, into which an intermediate layer of glued or unglued gauze is inserted (fiber-reinforced paper-based material).
  • This material is very malleable (in tests, embossing depths of more than 5 cm were achieved), mechanically stable, of good rigidity after processing and very environmentally friendly. It can comprise a paper layer as a second, if appropriate also as a further paper layer, but also a well printable paper layer.
  • This material is new and was specially developed for the purpose according to the invention. For its manufacture paper layers of at most 80 g / cm 2 are preferably used.
  • the lamination is carried out as mentioned above, wet lamination with the above-mentioned natural lamination adhesives, in particular wheat starch glue (wallpaper paste), being particularly preferred.
  • Preferred profile bodies in the form of packaging or packaging parts are listed below. These are package inserts which are arranged in a further packaging envelope.
  • the paper layer facing the object to be packaged is preferably a grease-repellent, food-compatible paper of the particularly preferred types of paper listed above.
  • More preferred are packaging parts that are fixed or loose with a non-embossed part (cover part) covering the recesses, which also consists of a material other than paper, such as e.g. Cardboard or cardboard can consist of, are provided or can be provided. This also includes bowl and cup shapes.
  • Packaging with embossed upper parts, possibly mirror-symmetrical to the lower part for packaging round objects, is also within the scope of the invention, wherein the upper part can partially form a unit with the lower part.
  • Packaging the lower and upper parts of which are at least firmly bonded to the surroundings at all joints, preferably sealed (bonded airtight and water vapor-tight), can be used for sensitive goods.
  • blister packs for the absorption of solid, semi-solid or liquid medicinal products should be mentioned.
  • Another preferred profile body according to the invention is the embossed, in the opened state, mirror-symmetrical body of a tube, which has a hole for receiving a closure into which any suitable closures can be inserted.
  • More than two profile bodies according to the invention can also be connected to form a superordinate structure (for example a container) by either loosely joining them together or folded or firmly connected, for example by stapling, more preferably by gluing or optionally sealing gluing.
  • a superordinate structure for example a container
  • Such superordinate structures can optionally be produced from a blank and connected via fold lines.
  • the profile bodies according to the invention can, if necessary, be connected to all materials which can be connected to paper in any way.
  • the pressing (embossing) according to the invention is carried out as in the known methods for embossing cardboard (newer methods can be found, for example, in EP-A-82 209 and US-A-4 143 587) by means of a positive stamp (male) and one corresponding, somewhat larger negative counterform (matrix) carried out.
  • Suitable materials for male and female are all materials which are not deformable under the process conditions, for example iron, steel, but also wood or non-deformable rubber, metal being currently preferred.
  • a flat layer of material used according to the invention is placed between the male and female molds and is formed by pressing the material through the male mold into the female mold until it stops.
  • the counter form (die) should be slightly larger than the positive form (male), whereby the optimal clearance between male and female primarily depends on the thickness of the material and the size of the surface of the cavities to be shaped. For example, when embossing cavities with a die formed as a hemisphere
  • the Martize advantageously has a diameter which is 1 mm larger, for example when embossing a recess in the form of an inverted, truncated cone an upper diameter of approximately 80 mm, a lower diameter of approximately 65 mm and a height of approximately 50 mm in a three-layer material made of glassine paper gauze
  • Pargamin paper (basis weight of the paper layers: 40 g / cm 2 in each case) the diameter of the matrix advantageously 2-3 mm larger than that of the patrix. Even with many very small recesses, a larger scope is advantageous.
  • embossing (deep-drawing) paper in contrast to deep-drawing in the case of thermoplastic plastics, at least some material is always drawn into the gap between the male part and the male part from the vicinity of the paper surface section, which initially lies above the opening of the female part. It is therefore advantageous, particularly when embossing larger cavities, to allow the patrix to engage in the counter-shape in such a way that the paper can be fed. This can be accomplished, for example, by letting the patrix perform a slight reciprocating movement while engaging in the patrix, or by initially obliquely, particularly in the case of embossing cavities that are relatively large in relation to the depth, i.e.
  • the paper can also be embossed by a device such as e.g. in DE-A-33 19 391 is first drawn into the trough of the die in order to provide enough material for the formation of the recess.
  • FIG. 11 A device which is suitable for embossing many small depressions in which the risk of tearing is particularly great (and which is not possible with cardboard) is shown in FIG. 11.
  • Several identical patrices (positive dies) or matrices (corresponding negative forms) are arranged along the circumference of a cylinder. A blank or a material web is conveyed between the cylinders for embossing, the cylinders moving in the opposite direction.
  • the male or female can be single-row, but there can also be several next to each other on one cylinder.
  • several cylinders with single-row male and female dies which are, for example, offset in a V-shape with respect to the conveying direction of the paper material, can be used, so that, for example, first a depression in the middle and then two more depressions on both sides of the depression offset cylinder, etc.
  • the patrix consists of a correspondingly large number of shapes which can be moved individually in the inverted direction, each of which is pressed one by one into a recess in the die by means of a suitable control mechanism. It is particularly favorable if the embossing process is started in the middle of the die and then continued towards the outside, since then there is always enough material available for pressing into the recesses of parts that have not yet been recessed.
  • An embossing of many recesses with stationary material can also be done by a cylindrical male part, as described in the last paragraph, and a flat female part with several correspondingly arranged recesses, on which the web or the blank is placed, by rolling the cylindrical male part over the material on the female part.
  • a male that can expand is used for this purpose, for example a male made of inflatable rubber. In the unexpanded state, it is first pressed into the die, then expanded and, at the end of the pressing process, pulled back out of the cavity to its unexpanded state. In order to remove the pressed material, the die must be correspondingly evident, as is known from plastics technology.
  • embossing can be carried out either at ambient temperature or with heating to a temperature which is still tolerated by the material (generally approximately 220 ° C., preferably 200 ° C.).
  • a temperature which is still tolerated by the material generally approximately 220 ° C., preferably 200 ° C.
  • the male or female or both embossing tools are advantageously heated by appropriate devices.
  • the material can be moistened before or during the embossing process for better processability. This is preferably done with water or water vapor, but other hydrophilic, hydrogen-bonding liquids, such as, for example, methanol, ethanol or glycol, can also be used.
  • Freshly laminated material that still contains moisture from the laminating adhesive is also preferably processed. Processed material containing increased moisture may, under certain circumstances, cause a slight crimp during the subsequent drying process, especially on the pressed surfaces. train what is not undesirable for certain applications, for example in the food sector, since this ensures a certain air supply.
  • moistened material is embossed with heating, it is advantageous if one or both of the embossing tools have perforations to allow steam to escape, as is known from the cathode embossing technique.
  • the material used according to the invention can be embossed as a blank or in the form of strip material, with transport devices known per se being used in each case.
  • the method according to the invention delivers relatively uniform
  • the material base surface can experience a slight crimp, in particular at the edge of the cavities, which, if undesirable, can in most cases be eliminated by pressing the material base surface flat.
  • Figure 1 is a cross section through a thin-walled profile body, which is formed as a packaging insert from a paper layer with embossed (pressed, "deep-drawn") depressions.
  • FIG. 3 shows a cross section through a thin-walled profile body which is designed as a blister pack for medicines
  • Fig. 5 is a perspective view of a thin-walled
  • FIG. 6 shows a plan view of the opened inside of the tube body with a punched-in hole for receiving the closure
  • Fig. 9 is a plan view of the outside of a
  • Tube body with inserted cap without cap before folding (solid and dashed
  • Fig. 10 is a partial perspective view of the tube body.
  • Fig. 11 is a schematic cross section through an arrangement of positive dies (male) and corresponding negative shapes (dies) on cylinders, which can be used for embossing (pressing) a plurality of cavities in a material web conveyed through the arrangement.
  • Fig. 12 is a schematic cross section through a
  • Material web can be used.
  • FIG. 1 shows in cross section an embossed profile body 10 made of a paper-based material, which can be used as a packaging insert, with a material base 13, embossed cavities (depressions) 12 for receiving objects, a folded edge 11 and a standing surface 14 bent from this edge
  • the embossed depressions 12 are shown with the geometry of a spherical segment, but they can also have any other suitable shape, for example assume that of a cuboid, an inverted obtuse cone, etc.; the side walls of these depressions (cavities) 12 can also be undercut, i.e. form an angle of less than 90 ° with the material base 13.
  • Fig. 2 shows the same profile body in plan view.
  • the profile body consists of grease-resistant parchment paper, which makes it particularly suitable for absorbing fatty foods, e.g. Chocolate, chocolates, cookies, is suitable.
  • Such a packaging part can also be constructed from a plurality of paper layers with or without a reinforcement layer made of one of the above-mentioned materials.
  • Another embodiment of a deep-drawn profile body with or without a reinforcing layer has only one depression on (not shown). Furthermore, in the above-mentioned embodiments, the base 14 and the folded edge
  • the walls of the recess (s) 12 can also contain steps.
  • the material base 13 can also be completely removed or at the upper edge of the depression
  • the above packaging parts can be supplemented by a cover part to complete packaging.
  • the cover part can be constructed from one or more layers of paper, which can also have depressions (e.g. for receiving round objects) or can also be flat.
  • the cover part can be loosely on the lower part, but it can be firmly connected to it, e.g. by stapling or by gluing, and it can form a unit with the lower part via a foldable line which forms an edge of the packaging after folding.
  • the above embodiments can e.g. can also be connected to other cover materials via the edges of the base surface 13, e.g. with cardboard, as is the case with many packages in which the deep-drawn part was previously made of plastic.
  • FIG. 3 shows the cross section through a blister pack 20 for medication, which is formed by sealing a cover sheet 21 and a lower part 27 by means of an adhesive layer 23a, optionally 23b.
  • Fig. 4 shows a plan view of the lower part 27 with the cover sheet removed.
  • the lower part 27 is composed of three layers: an innermost paper layer 22 which can be selected as required (for example, glassine paper in the case of solid medicaments, parchment paper in the case of medicaments in an aqueous solution can be used), a reinforcing layer 24 preferably made of dressing material -Gauze and an outer 22
  • Paper layer 26 which may be of the same type as the innermost, for example, but also, if necessary, a gas and water vapor impermeable, plastic-containing paper layer.
  • Recesses 25 for holding solid, semi-solid (e.g. suppositories), semi-liquid (e.g. sterile creams) or liquid medications (e.g. eye drops) are stamped into the material base surface 29 (pressed in).
  • the geometry of these depressions does not have to be that shown in the form of a spherical segment, but can take on any suitable geometry.
  • the base, apart from the reinforcing fibers, can be transparent, e.g. when using glassine paper, but it can also be opaque, which is necessary in the case of photosensitive medication, either due to the natural nature of the paper or by appropriate coloring of the same.
  • Embodiments with only one or two paper layers without a reinforcement layer are also possible.
  • the cover sheet 21 preferably consists of a printable paper so that the medication name etc. can be printed on. Again, this can be a transparent printable paper such as Glassine paper, or, a non-transparent paper as in the case of the lower part.
  • the cover sheet consists of only one paper slide so that the medication in the recesses 25 can be pressed through the paper layer by pressure on the bottom 28 thereof.
  • the cover sheet can also be constructed from more than one layer of paper.
  • a reinforcement layer as described above, is provided in the cover sheet, an instrument for opening it may then have to be supplied with the medication packaging.
  • the lower part and the cover sheet are glued to one another at least on the outer edges 30a, 30b by the adhesive layer 23a, preferably sealed (glued airtight and moisture-tight).
  • an adhesive layer 23b can be applied around each recess 25 or on substantially the entire material base surface 29 in order to lead to an even more secure shielding of the recesses 25 from the surroundings.
  • FIG. 5 to 10 show views or partial views of a tube 41, the tube body 42 of which is made up of a paper inner layer 43, a reinforcing layer 44 and a further paper layer 45, which is preferably printable.
  • the material for the inner layer should be a grease-repellent and / or waterproof paper, e.g. Parchment paper.
  • Fig. 6 shows the unfolded inside of the tube body 42 before attaching the two-part closure 47 (prefabricated part made of plastic), which consists of a screw socket with mounting flange 46 and a threaded cap.
  • the punched hole 48 is used to receive the threaded part of the plastic disc with thread 46 or another closure.
  • the adhesive tabs 49 form the base of the
  • Depressions 50 shaped in the form of a circular section
  • Tubehk ⁇ rpers is thereby arched in the direction of the depressions 50.
  • the screw socket with the fastening flange 46 is guided through the hole (and, not shown, the fastening flange is glued to the upper part 53 of the tube body).
  • the outside view of the tube at this stage of manufacture is shown in Fig. 9 (solid and broken lines).
  • the solid lines in FIG. 9 show the tube in the next production stage, in which the tube is folded together at the mirror plane fold 54. If the tube is filled with the fastening flange 46 via the screw connection, all the adhesive tabs 49 can be glued (sealed) (not shown).
  • the lower adhesive tabs 49a initially remain unglued (unsealed) and may only be filled by the tube after they have been filled, possibly. when the cap is on, glued (sealed).
  • the upper part 53 of the tube body 42 is pressed inwards (erected) before or after filling; see Fig. 10, in which the closure 47 of the tube is not shown for the sake of clarity.
  • FIG. 11 shows a schematic cross section through an arrangement of (positive) embossing dies (patrices) 58 and the corresponding negative forms (dies) 59 each on the circumference of cylinders 56, 57.
  • patrices positive embossing dies
  • corresponding negative forms dies
  • cylinders 56, 57.
  • many cavities can be successively cut into a material web (or Material cut) 55 can be embossed.
  • the cylinders move in the opposite direction, as a result of which 55 cavities 60 are embossed into a material web or blank that is passed between the cylinders.
  • the material web (or material blank) 55 is conveyed either by the counter-rotating movement of the cylinders 56, 57 itself and / or by an additional transport device (not shown).
  • the male or female can be single-row, but there can also be several next to each other on one cylinder.
  • multiple cylinders are used with single-row male and female dies, for example V-shaped against one another are offset, so that, for example, first a recess in the middle and then two further recesses on both sides of the hole are embossed by the offset cylinders, etc. (not shown), whereby if an embossing is being carried out in adjacent pairs of cylinders, the middle pairs of cylinders 56, 57 are preferably in a position in which the embossing process has largely ended or in which no embossing takes place, ie no male part 58 engages in a counter-mold 59, etc. This can be achieved by suitable spaces between male parts or male parts and a suitable relative rotational position of the cylinders can be controlled at the beginning of the embossing process.
  • Fig. 12 shows a cross section through a pressing device with which several depressions can be embossed in a stationary material in a staggered manner.
  • the lower tool 62 has a heatable plate 66a with a plurality of depressions 65, which serve as matrices.
  • a material 63 to be deformed is placed over the entire lower tool as a blank or strip material.
  • the upper tool 61 which can be raised (not shown) and lowered, is constructed from a heatable plate 66b with cylindrical recesses 69. In the cylindrical recesses 69 there are individually liftable and lowerable cylindrical head parts 67 by means of a suitable mechanism, into which positive stamps are located
  • the material can be embossed without excessive tensile forces which could cause the material 63 to rupture.
  • Glassine paper with a basis weight of 40 g / cm 2 Spread evenly with wheat starch glue (wallpaper paste). Then a layer of bookbinding gauze and another layer of glassine paper (basis weight also
  • the fiber-reinforced material is preferably used for embossing after approx. 30 minutes, since it then has a moisture content which is very suitable for these processes. Alternatively, it can be dried for approx. 24 hours under the load mentioned above and then moistened again before embossing.
  • a negative casting mold (female) and then a positive casting mold (male) were produced from the lower and upper half of the praline from a model casting compound, the molds being allowed to dry for 24 hours to completely harden.
  • the patrix was reduced by sanding on all sides to such an extent that its circumference was approx. 0.5 mm smaller than that of the matrix.
  • the two matrices were anchored in a wooden frame by further pouring with the model construction pouring compound in such a way that the two depressions were opened in a suitable arrangement
  • Chocolate casing knitted together along its edge along an edge of about 6 mm in length and a flat section was formed around the depressions.
  • the wooden frame was clamped in a pressure embossing device.
  • the molded packaging was removed from the dies and folded into a closed package, the flat flange portions of which were cut into an attractive shape. After inserting a praline, the upper and lower parts of the packaging were glued together with a food-compatible adhesive on the flange parts.
  • a cup was made from the fiber reinforced paper material described in Example 1.
  • Example 2 Similar to Example 2, a height of approx. 50 mm became first a positive and then a negative casting mold manufactured.
  • the positive mold (male) was sanded until its diameter was 2 - 3 mm smaller than that of the negative mold (female).
  • the negative mold was fixed in a wooden frame similar to Example 1 and clamped in a pressure embossing press.
  • a 20 cm x 20 cm blank of the still moist, fiber-reinforced glassine paper material freshly produced according to Example 1 was placed symmetrically on the die.
  • the paper material was then slowly pressed into the die by hand with the patrix in the course of about 60 seconds.
  • the male part was pressed into the female part with the upper die of the pressure embossing press and left for 30 minutes. Then the press was opened and the patrix pulled out.
  • the resulting cup-shaped profile body which had an almost completely smooth floor and walls, was initially allowed to dry for 24 hours without removing the excess material. Now the excess material was cut off at the edge of the embossing, creating a stable cup.
  • a finished deep-drawing mold from the bottle manufacturer was used as the die, which had a rectangular recess of the approximate dimensions of 94 mm x 60 mm (base surface) x 40 mm (height) with a smaller rectangular recess with a round bottom in the middle of the narrower edge of the rectangle (approx Dimensions 20 mm x 14 mm_x 32 mm (greatest clear height of the round bottom)) and was clamped in a pressure embossing press.
  • the wooden plate serving as a die was removed from the embossing press and turned over to remove the balls. Then the embossed packaging insert was lifted out of the wooden plate serving as a matrix.
  • the cylindrical recesses in the wooden plate did not have a floor that was completely adapted to the patrices, the embossed recesses were, especially in the material processed under heating, from the inside and outside even, smooth appearance.
  • the cold-embossed material in particular usually showed a slight ripple on the surface after drying. After processing, both materials were so stiff that they retained their shape while resting on the cavities.
  • the lower part of a blister pack for medicaments with 12 cylindrical, rounded-off depressions with a maximum clear height of approximately 3 mm and a diameter of slightly more than 6 mm was produced from the material from Example 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)

Abstract

Des corps profilés se caractérisant par le fait de se constituer d'un papier à une ou plusieurs couches, le cas échéant renforcé par une couche de renforcement de moindre rigidité. Les couches individuelles ont un grammage d'au maximum 150 g/cm2. Ces corps contiennent une ou plusieurs cavités ayant une hauteur libre d'au moins 1,5 mm, ces cavités étant produites par estampage au moyen d'un poinçon (moule positif) et d'une matrice correspondante (moule négatif). L'invention concerne également un procédé de fabrication de ces corps profilés ainsi qu'un matériau renforcé par des fibres particulièrement approprié pour fabriquer ces corps profilés.
PCT/DE1993/000423 1992-05-14 1993-05-14 Corps profiles a base de papier et leur procede de fabrication Ceased WO1993023240A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93911745A EP0643644A1 (fr) 1992-05-14 1993-05-14 Corps profiles a base de papier et leur procede de fabrication

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DEG9206574.0 1992-05-14
DE9206574 1992-05-14
DEG9211312.5 1992-08-22
DE9211312U DE9211312U1 (de) 1992-05-14 1992-08-22 Einsatzfolie für Verpackungen
DEP4236447.7 1992-10-28
DE19924236447 DE4236447A1 (de) 1992-05-14 1992-10-28 Profilkörper auf Papierbasis und Verfahren zur Herstellung derselben

Publications (2)

Publication Number Publication Date
WO1993023240A2 true WO1993023240A2 (fr) 1993-11-25
WO1993023240A3 WO1993023240A3 (fr) 1994-05-11

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PCT/DE1993/000423 Ceased WO1993023240A2 (fr) 1992-05-14 1993-05-14 Corps profiles a base de papier et leur procede de fabrication

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EP (1) EP0643644A1 (fr)
AU (1) AU5173093A (fr)
DE (1) DE4236447A1 (fr)
WO (1) WO1993023240A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19509863A1 (de) * 1995-03-17 1996-04-11 Peter H Meier Verfahren und Vorrichtung zur Verformung von Papier und Karton
WO1996029196A1 (fr) * 1995-03-17 1996-09-26 Meier Peter H Procede et dispositif de façonnage de papier et de carton
US20220185558A1 (en) * 2019-04-12 2022-06-16 Fernandi Innovation Ab Sealed Package Comprising Parchment Paper and a Polysaccharide-Based Coating

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DE4403751A1 (de) * 1994-02-08 1995-08-10 Strepp Gmbh & Co Kg Papierfabr Polstermaterial sowie Verfahren zur Herstellung dieses Polstermaterials
DE29607968U1 (de) * 1996-05-02 1996-10-24 Steinhauer, Björn, Dr., 77767 Appenweier Kondom für Hygienezwecke
DE102011087742A1 (de) * 2011-12-05 2013-06-06 Papierfabrik Schoellershammer Heinr. Aug. Schoeller Söhne GmbH & Co. KG Transparente Wellpappe
DE102019124699A1 (de) * 2019-09-13 2021-03-18 Ar Packaging Gmbh Verfahren zum Herstellen von zumindest teilweise stabförmigen Erzeugnissen aus Papier, Karton oder einem anderen faserhaltigen Material
DE102022113982A1 (de) 2022-06-02 2023-12-07 Syntegon Technology Gmbh Verpackung aus faserbasiertem Packmaterial

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US1784906A (en) * 1927-08-08 1930-12-16 Oxhandler Leopold Method of embossing fiber sheets
FR784989A (fr) * 1934-02-14 1935-07-30 Procédé de fabrication de nattes isolantes
GB519505A (en) * 1937-11-06 1940-03-28 Johannes Wildenhain Improvements in or relating to collapsible tubular containers
GB577151A (en) * 1944-03-03 1946-05-07 Walter Mcgeorge Improvements in or relating to packages or wrappers for small discrete bodies to facilitate the opening thereof
FR911662A (fr) * 1945-01-26 1946-07-17 Creations Artistiques & Tech S Procédé pour la manipulation, le conditionnement, l'emballage et l'exposition de petits objets de forme définie, tels que les ampoules de verre, les petits flaconnages et autres articles analogues
DE1155967B (de) * 1961-08-01 1963-10-17 Karl Lang K G Papierverarbeitu Verfahren zur Herstellung einer Verpackungseinlage und Vorrichtung zu seiner Durchfuehrung
FR1398104A (fr) * 1964-03-26 1965-05-07 Participations Et Procedes Ind éléments déshydratants et leur procédé de fabrication
AT269628B (de) * 1965-11-15 1969-03-25 Karl Dipl Ing Dr Mont Hanke Verfahren und Vorrichtung zur räumlichen Formung fabrikationsnasser, ebener Faserstoffbahnen
AU439989B2 (en) * 1967-04-10 1973-08-31 Rudd-Melikian, Inc A beverage tape
FI206273A7 (fr) * 1973-06-27 1974-12-28 Keskuslaboratorio
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FR2524026B1 (fr) * 1982-03-25 1985-09-13 Arjomari Prioux Matieres cellulosiques transparentisees et leurs applications, leur procede de fabrication et les compositions de transparentisation correspondantes
JPS60143926A (ja) * 1983-12-30 1985-07-30 Nippon Petrochem Co Ltd 凹凸シートの成形装置
DE3922644A1 (de) * 1989-07-10 1991-01-17 Pietrek Reinhold Gmbh Schale fuer verkaufspackungen von nahrungsmitteln
CA2060567C (fr) * 1991-02-04 1997-06-10 Galyn Arlyn Schulz Machine pour gaufrer une bande fibreuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19509863A1 (de) * 1995-03-17 1996-04-11 Peter H Meier Verfahren und Vorrichtung zur Verformung von Papier und Karton
WO1996029196A1 (fr) * 1995-03-17 1996-09-26 Meier Peter H Procede et dispositif de façonnage de papier et de carton
US20220185558A1 (en) * 2019-04-12 2022-06-16 Fernandi Innovation Ab Sealed Package Comprising Parchment Paper and a Polysaccharide-Based Coating

Also Published As

Publication number Publication date
DE4236447A1 (de) 1993-11-18
AU5173093A (en) 1993-12-13
EP0643644A1 (fr) 1995-03-22
WO1993023240A3 (fr) 1994-05-11

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