DE2528169A1 - LAMINATED PACKAGING MATERIAL - Google Patents
LAMINATED PACKAGING MATERIALInfo
- Publication number
- DE2528169A1 DE2528169A1 DE19752528169 DE2528169A DE2528169A1 DE 2528169 A1 DE2528169 A1 DE 2528169A1 DE 19752528169 DE19752528169 DE 19752528169 DE 2528169 A DE2528169 A DE 2528169A DE 2528169 A1 DE2528169 A1 DE 2528169A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- packaging material
- plastic
- base layer
- packaging
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0221—Vinyl resin
- B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Dr. E. Boettner 959 8169Dr. E. Boettner 959 8169
Dipl,Ing.H,J. Müller L ° L ° ' ° ^Dipl, Ing.H, J. Müller L ° L ° '° ^
Dr. Th. Berendt
D 8 München 80 TP H ZO Dr. Th. Berendt
D 8 Munich 80 TP H ZO
As /P As / P
AB ZIRISTOR, Fack, S-221 01 Lund 1 (Schweden)AB ZIRISTOR, Fack, S-221 01 Lund 1 (Sweden)
Lam.i iii ertes VerpackungsiuaterialLam.i iii ertes packaging material
Die Erfindung bezieht sich auf ein laminiertes Verpackungsmaterial mit einer Grundschicht und beiderseits derselben angebrachten Kunststoffschxchten.The invention relates to a laminated packaging material with a base layer and plastic shafts attached to both sides of the same.
Aus laminiertem Material können bekanntlich Verpackungsbehälter hergestellt werden, und solches Material tirird insbesondere häufig bei der Herstellung von liegwerf-Verpackungsbehältern für flüssige Füllgüter verwendet. Das laminierte Material weist eine verhältnismäßig dicke Grundschicht und an beiden Seiten derselben angebrachte Kunststoffsdichten auf. Die Grundschicht, die aus Papier bestehen kann, gestattet die Bildung eines derben Verpackungsbehälters, und die an der Innenseite liegende Kunststoffschicht sorgt für die Undurchlässigkeit des Behälters. Die an der Außenseite liegende Kunststoffschicht dient als Schutz für die Verpackung und gibt dieser ein gefälliges Aussehen.It is known that packaging containers can be made from laminated material, and such material is particularly useful often used in the manufacture of lying-down packaging containers used for liquid filling goods. The laminated material has a relatively thick base layer and on both sides of the same attached plastic seals. The base layer, which can consist of paper, allows the formation of a tough packaging container, and that on the The plastic layer on the inside ensures impermeability of the container. The plastic layer on the outside serves as protection for the packaging and gives it a pleasing appearance.
Wegen der verhältnismäßig dicken und starren Grundschicht hat eine Verformung, wie sie beispielsweise beim Fallen des Verpackunr'.sbehälters auf den Boden oder bei sonstiger mechanischer Einwirkung auftreten kann, häufig ein Leckwerden des Verpaokungsbehälters zur Folge.Because of the relatively thick and rigid base layer, it deforms, for example, when the Packaging container on the floor or other mechanical Impact can occur, often a leakage of the Verpaokungsbehälters result.
-Z--Z-
509883/0362509883/0362
Dies stellt insbesondere bei größeren Verpackungsbehältern ein Problem dar, und zwar nicht nur, weil sie beim Auffallen wegen ihres größeren Gewichtes heftigeren Stoßbelastungen unterliegen, sondern auch deshalb, weil ihre Größe ein laminiertes Material mit besonders kräftiger und starrer Grundschicht erforderlich macht, die unter scharfkantigen Siinkeln gebogen oder gebrochen wird, so daß ebenfalls die Innenschicht aufgerissen oder aufgebrochen wird.This is particularly a problem with larger packaging containers, and not only because they are noticed when they are noticed Because of their greater weight, they are subject to more severe shock loads, but also because their size is laminated Material with a particularly strong and rigid base layer makes it necessary to use the sharp-edged Siinkeln is bent or broken, so that the inner layer is also torn or broken open.
Der derzeit in steigendem Maß verwendete Typ eines laminierten Materials, der aus einer Grundschicht aus Schaumkunststoff mit beiderseits angebrachten Kunststoffschichten besteht, ist wegen seiner trägerartigen Konstruktion besonders starr und gestattet die Aufnahme erheblicher Spannungen ohne Bruch; wenn allerdings die Spannungen die obere Grenze überschreiten, erfolgt der Bruch äußerst heftig, und es bilden sich scharfe Faltlinien, die fast ohne Ausnahme zu einem Splittern der inneren Kunststoffschicht führen.The type of laminated material currently in increasing use, consisting of a base layer of foamed plastic with consists of plastic layers attached on both sides is due to its beam-like construction is particularly rigid and allows considerable stresses to be absorbed without breaking; however, if the stresses exceed the upper limit, the rupture is extremely violent and sharp ones are formed Fold lines which almost without exception lead to splintering of the inner plastic layer.
Die Verpackungsbehälter aus laminiertem Material dieser Art haben also durchwegs den Nachteil, daß sie bei Einwirken mechanischer Kräfte oder bei Verformung eine nur geringe Lecksicherheit bieten.The laminated material packaging containers of this kind thus consistently have the disadvantage that they are only poorly leakproof when mechanical forces act or when deformed Offer.
Dieser Nachteil kann dadurch beseitigt werden, daß die Grundschicht in dem laminierten Verpackungsmaterial weniger starr oder dünner ausgebildet wird, jedoch hat dies die unerwünschte Folge, daß die aus solchem Verpackungsmaterial hergestellten Behälter weniger widerstandsfähig ausfallen. Auch ist die Größe der aus solchem Material herstellbaren Verpackungsbehälter begrenzt.This disadvantage can be eliminated in that the base layer is made less rigid or thinner in the laminated packaging material, but this has the undesirable effects As a result, the containers made from such packaging material turn out to be less resistant. Also is the size the packaging containers that can be made from such a material limited.
Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen und ein laminiertes Verpackungsmaterial zur Herstellung von Verpackungsbehältern zu schaffen, das selbst heftigen Stößen und Verformungen ohne Lecken standhält.The invention is based on the object of eliminating these disadvantages and a laminated packaging material for production of packaging containers that can withstand severe knocks and deformations without leaking.
B09883/0362B09883 / 0362
Dies wird gemäß der Erfindung dadurch, erzielt, daß ein laminiertes Verpackungsmaterial des einleitend beschriebenen Typs dadurch gekennzeichnet ist, daß die Haftkraft zwischen der einen der Kunststoffschichten und der angrenzenden Schicht derart eingerichtet ist, daß bei Verformung der aus solchem Verpackungsmaterial hergestellten Verpackung die Kunststoffschicht sich von der benachbarten Schicht löst.This is achieved according to the invention in that a laminated Packaging material of the type described in the introduction is characterized in that the adhesive force between the one of the plastic layers and the adjacent layer is set up in such a way that when the packaging made of such packaging material is deformed, the plastic layer separates from the adjacent layer.
Merkmale bevorzugter Weiterbildung des Materials gemäß der Erfindung sind aus den Unteransprüchen ersichtlich.Features of a preferred development of the material according to the invention are evident from the subclaims.
Das laminierte Verpackungsmaterial gemäß der Erfindung gestattet in einfacher Weise die Herstellung von Verpackungsbehältern, die heftigen Verformungen ohne Leckwerden standhalten, da bei Verformung des Verpackungsbehälters die Innenschicht des Laminates sich von der benachbarten Schicht löst und einen Innenbehälter bildet, der von der benachbarten Schicht gänzlich oder teilweise losgetrennt ist.The laminated packaging material according to the invention allows in a simple manner the production of packaging containers, withstand the violent deformations without being leaked, because when the packaging container is deformed, the inner layer of the laminate separates from the adjacent layer and forms an inner container that separates from the adjacent layer is wholly or partially detached.
In der Zeichnung ist eine Ausführungsform des Verpackungsmaterials gemäß der Erfindung einge-hend in vergrößertem, schematischem Schnitt dargestellt.In the drawing is an embodiment of the packaging material according to the invention shown in detail in an enlarged, schematic section.
Das Material ist zur Gänze aus Kunststoff hergestellt und besteht aus einer zentralen Grundschicht 1 aus geschäumtem Polystyrol und beiderseits derselben angebrachten Schichten 2, 3 aus homogenem Kunststoff, beispielsweise Polystyrol. Die Dicke der zentralen Schicht beträgt 0,5 bis 2 mm und die der äußeren Schichten 2, 3 etwa 0,1 mm.The material is made entirely of plastic and consists of a central base layer 1 made of foamed polystyrene and on both sides of the same applied layers 2, 3 made of homogeneous plastic, for example polystyrene. The fat the central layer is 0.5 to 2 mm and that of the outer layers 2, 3 is about 0.1 mm.
Das Verpackungsmaterial gemäß der Erfindung wird hergestellt, indem die Schaumkunststoffschicht 1 in bekannter Weise stranggepreßt wird und anschließend die beiden homogenen Kunststoffschichten 2, 3 an den Flächen der Schaumkunststoffschicht 1 in einem Strangpreßvorgang derart angebracht werden, daß die gewünschte Haftfestigkeit zwischen den Schichten erzielt wird.The packaging material according to the invention is produced by extruding the foam plastic layer 1 in a known manner and then the two homogeneous plastic layers 2, 3 on the surfaces of the foam plastic layer 1 in an extrusion process so that the desired bond strength between the layers is achieved.
-k--k-
509883/0362509883/0362
Die gewünschte Schwächung der Haftkraft zwischen der Grundschicht 1 und der homogenen Kunststoffschicht 3, die nach Herstellung des Verpackungsbehälters dessen undurchlässige Innenschicht bilden soll, wird dadurch erzielt, daß während des Anbringens der homogenen Schicht 3 die Temperatur des stranggepreßten Kunststoffes so eingestellt wird, daß die zweckmäßige Haftkraft erzielt wird.The desired weakening of the adhesion force between the G r undschicht 1 and the homogeneous plastic layer 3, which is intended to form the impervious inner layer after the production of the packaging container is thereby achieved that the temperature of the extruded plastic material is adjusted during application of the homogeneous layer 3 that the appropriate adhesive force is achieved.
Wenn das Verpackungsmaterial gemäß der Erfindung für die Herstellung von Verpackungsbehältern verwendet werden soll, kann es in der herkömmlichen Weise verarbeitet werden, und es besteht keine Notwendigkeit, auf die besonderen Eigenschaften des Verpackungsmaterials irgendwelche besondenaRücksicht zu nehmen. Dies bedeutet, daß die aus dem Verpackungsmaterial hergestellten Verpackungsbehälter vom herkömmlichen Typ sein können und aus solchem Verpackungsmaterial in Bogen- (Blatt-) oder Bahnform hergestellt werden können.If the packaging material according to the invention for manufacture to be used by packaging containers, it can be processed in the conventional manner and it consists no need to take any special considerations into account for the special properties of the packaging material to take. This means that the packaging containers made from the packaging material are of the conventional type can and from such packaging material in sheet (sheet) or web shape can be produced.
Wer ein aus dem Material gemäß der Erfindung hergestellter Verpackungsbehälter einer mechanischen Einwirkung unterworfen wird, beispielsweise an einer Ecke eingedrückt wird, wird die Grundschicht 1 zusammengedrückt und zu einer scharfen Falte umgebogen. Wegen der Schwächung der Haftkraft zwischen der undruchlässigen Innenschicht 3 und der Grundschicht 1 wird dabei die Innenschicht 3 an der beschädigten Stelle von der Grundschicht 1 gelöst und behält daher ihre Dichtfähigkeit bei.Anyone made from the material according to the invention Packaging container is subjected to mechanical action, for example is pressed in at a corner the base layer 1 pressed together and bent into a sharp fold. Because of the weakening of the adhesive force between the impermeable inner layer 3 and the base layer 1 is doing the inner layer 3 at the damaged point of the base layer 1 dissolved and therefore retains its sealability.
Die Erfindung ermöglicht also mittels einfacher herkömmlicher Verfahrensweisen die Herstellung eines laminierten Verpackungsmaterials, aus dem Verpackungsbehälter, beispielsweise für flüssige Füllgüter, herstellbar sind, die starke Verformungen überdauern, ohne undicht zu werden.The invention thus enables the production of a laminated packaging material by means of simple conventional procedures, from the packaging container, for example for liquid filling goods, can be produced that are strong Deformations survive without leaking.
PatentansprücheClaims
509883/0362509883/0362
Claims (3)
( \Claims
( \
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7408567A SE390505B (en) | 1974-06-28 | 1974-06-28 | LAMINATED MATERIAL FOR MANUFACTURE OF PACKAGING CONTAINERS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2528169A1 true DE2528169A1 (en) | 1976-01-15 |
Family
ID=20321585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752528169 Pending DE2528169A1 (en) | 1974-06-28 | 1975-06-24 | LAMINATED PACKAGING MATERIAL |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS5128180A (en) |
AT (1) | AT334821B (en) |
BE (1) | BE830681A (en) |
CA (1) | CA1058500A (en) |
CH (1) | CH594496A5 (en) |
DE (1) | DE2528169A1 (en) |
DK (1) | DK152485C (en) |
ES (1) | ES438886A1 (en) |
FR (1) | FR2276171A1 (en) |
GB (1) | GB1508664A (en) |
IT (1) | IT1039328B (en) |
NL (1) | NL7507634A (en) |
SE (1) | SE390505B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2461567A1 (en) * | 1979-07-17 | 1981-02-06 | Lincrusta | Use of soft laminate cores for forming solid sheet materials - to obtain deep drawn or complex shapes with smooth surfaces |
JPS6017322U (en) * | 1983-07-12 | 1985-02-05 | 林テレンプ株式会社 | Interior molding materials |
TW232671B (en) * | 1990-01-16 | 1994-10-21 | Idemitsu Petrochemical Co | |
EP0626255B1 (en) * | 1993-05-28 | 1998-03-18 | Sekisui Kaseihin Kogyo Kabushiki Kaisha | Separable foamed thermoplastic resin laminate sheet, process for producing the same, and formings produced therefrom |
-
1974
- 1974-06-28 SE SE7408567A patent/SE390505B/en not_active IP Right Cessation
-
1975
- 1975-06-23 IT IT24672/75A patent/IT1039328B/en active
- 1975-06-24 GB GB26698/75A patent/GB1508664A/en not_active Expired
- 1975-06-24 DE DE19752528169 patent/DE2528169A1/en active Pending
- 1975-06-25 DK DK289675A patent/DK152485C/en active
- 1975-06-26 ES ES438886A patent/ES438886A1/en not_active Expired
- 1975-06-26 NL NL7507634A patent/NL7507634A/en not_active Application Discontinuation
- 1975-06-26 BE BE157716A patent/BE830681A/en not_active IP Right Cessation
- 1975-06-27 AT AT497075A patent/AT334821B/en not_active IP Right Cessation
- 1975-06-27 CH CH840375A patent/CH594496A5/xx not_active IP Right Cessation
- 1975-06-27 FR FR7520227A patent/FR2276171A1/en active Granted
- 1975-06-27 CA CA230,373A patent/CA1058500A/en not_active Expired
- 1975-06-27 JP JP50079934A patent/JPS5128180A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE7408567L (en) | 1975-12-29 |
ES438886A1 (en) | 1977-01-16 |
ATA497075A (en) | 1976-05-15 |
DK289675A (en) | 1975-12-29 |
SE390505B (en) | 1976-12-27 |
JPS5128180A (en) | 1976-03-09 |
NL7507634A (en) | 1975-12-30 |
BE830681A (en) | 1975-10-16 |
AT334821B (en) | 1976-02-10 |
FR2276171A1 (en) | 1976-01-23 |
IT1039328B (en) | 1979-12-10 |
CH594496A5 (en) | 1978-01-13 |
DK152485C (en) | 1988-08-08 |
GB1508664A (en) | 1978-04-26 |
FR2276171B1 (en) | 1980-05-16 |
CA1058500A (en) | 1979-07-17 |
AU8244175A (en) | 1977-01-06 |
DK152485B (en) | 1988-03-07 |
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