LABEL AND CONTAINER WITH SUCH A LABEL

Schreiner Etiketten und Munich, Label and Container with such a Label BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a label incorporating a hanger for suspending an object, the hanger is adapted for attaching to a bottle for suspending the bottle on a stand. The invention further relates to a container having such a label. Description of the Prior Art an object for labeling the contents of infusion bottles. The label comprises two layers of synthetic material surrounding the bottle. A hanger is defined in the label by two die cut lines which penetrate the upper layer of the label. This known label requires additional production costs since it comprises two layers which must be bonded by means of an adhesive. At present, pharmaceutical companies are faced with the necessity of providing detailed instructions with their products. These detailed instructions require a lot of space which often causes problems, particularly when the product is contained within a small bottle. Often, space is also required on the label to permit a physician to write relevant however, intersects the label surface in two places and therefore reduces the useful area CA 02263512 199902-16 available for information and instructions which is particularly problematic if the hanging label should be used for a small bottle. A booklet containing further product information cannot be attached to the label since it would impede the handling of the hanger. European Patent EP 0 356 574 and the laid open German Patent application DE 195 05 531 Al each disclose labels consisting of two superimposed layers in which the transparent upper layer is in the form of a hanger. Those labels are expensive due to the material consumption for both layers and the necessary means for bonding them. Furthermore, those labels do not permit the attachment of a booklet which extends to more than one half of the perimeter of the bottle to be labeled since such a booklet would impede the handling of the hanger. German Utility Design G 91 01 464 discloses a label having a hanger with a die cut line consisting of a single layer. The die cut line extends along the longitudinal edge of the label which is close to the bottom of a bottle to which the label is to be applied. The die cut line defines a hanger which can be slipped over the bottom of the bottle for hanging the bottle upside down. The label and hence the hanger must have a length which is equal to half of the perimeter of the bottle. Therefore, the hanger is short in comparison to the diameter of the bottle and difficult to handle. European Patent EP 0 632 422 discloses a label with a hanger which consists of a single layer and comprises a die cut line in form of a closed loop defining a U-shaped hanger extending from the side of the label which is near the bottom of the bottle to which the label is to be applied. In the production of this label the material of the layer inside the U-shaped hanger is punched out which produces a lot of waste. Summary of the Invention It is therefore a main objective of the present invention to provide an improved label incorporating a hanger. CA 02263512 199902-16 It is a further object of the present invention to provide a label with an improved possibility of suspending an object characterized by its low cost, ease of handling and operation, and its highly versatile uses. It is a further object of the present invention to provide a label characterized by a large continuous surface available for information and instructions which extends along almost the entire perimeter of a bottle to be labeled. It is a further object of the present invention to provide a label suitable for combination with a booklet. It is a further object of the present invention to provide a label comprising a hanger for allowing a substantially perpendicular positioning of an infusion bottle hanging upside down on an infusion stand. Deviations of approximately 10° from the precise perpendicular positioning are permissible in practice. It is another object of the present invention to provide a label for allowing an automatic application to a bottle without disturbances. Furthermore, it is an object of the invention to provide a container having a label which permits in a substantially vertical position the hanging of the bottle with its opening pointing downwards and in which the outer surface of the container permits optimal use for information provided thereon. These objectives are accomplished by providing a label for the labeling of a bottle having a cylindrical portion, said label including means for hanging the labeled bottle comprising: a substantially rectangular base layer having a central main portion and a peripheral portion a first and a second longitudinal side substantially parallel to each other a first and a second transverse side perpendicular to said first and second longitudinal edge CA 02263512 199902-16 a layer of pressure-sensitive adhesive applied to at least a part of its back side; and at least a first die cut line at the peripheral portion of said substantially rectangular base layer, said first die cut line extending from a first root to a second root such that a hanger is defined which remains joined with the central main portion of the base layer at the first and the second root, said hanger having at least a middle portion extending along said first longitudinal side and a first and a second side section extending along said first and said second transverse side, respectively, said first and said second root being located at said second longitudinal side and being separated from each other by a distance which is approximately one half of the perimeter of said bottle. The above and other objects of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings which illustrate preferred embodiments of the invention. According to the present invention a label is provided which is attached to the cylindrical portion of a pharmaceutical container or bottle along its entire or almost its entire perimeter. A hanger is defined at the peripheral portion of the label by a die cut line. The hanger has thus an appreciable length and enables the precise perpendicular hanging of the pharmaceutical container in an upside down position. For this purpose the roots of the hanger, i.e. the points where the hanger is joined to the remaining label and in the state of being suspended the force of the hanger is directed into the main portion of the label, have a mutual distance of half a perimeter of the bottle so that the roots of the hanger will be situated on diametrically opposed positions of the pharmaceutical container when the label is attached to it. In practice, however, it is considered sufficient if the container having the label applied thereto is suspended approximately perpendicular; a deviation of up to 10° from the vertical line is acceptable. Thus far it is also acceptable if the two roots are not exactly separated by a distance equal to half a perimeter of the container but only approximately. In accordance with a preferred form of the improved label a further die cut line is provided parallel to the longitudinal sides of the base layer. This further die cut line is arranged in a distance to the second longitudinal side and defines together with the second longitudinal CA 02263512 199902-16 side the area of the label which can be used for the printing of information thereon. This further die cut line intersects the portions of the die cut line which extend along the narrow sides and thus forms a closed loop with the die cut line. Due to the formation of a closed loop a portion of the base layer is punched out such that the middle portion of the hanger is spaced apart from the remaining central main portion of the base layer. This embodiment has the following advantage: The label can be applied to the cylindrical portion of a pharmaceutical bottle in such a manner that it covers almost all of the cylindrical portion up to the tapered bottle neck. The hanger is, as explained above, spaced apart from the central main portion and is situated in the region of the tapered bottle neck of the bottle when the label is applied to the bottle. The hanger presents itself for gripping from its back side and its use is apparent without the need any explanation. Preferably, the overall length of the label in the direction of the first and the second longitudinal side of the substantially rectangular base layer is approximately equal to the perimeter of the bottle. However, it is preferable to design the total length a little longer than the perimeter so that the side portions of the hanger overlap with each other, when the label is attached to the bottle. Thereby, the available area for information on the label is further increased. The label with hanger according to the present invention lends itself particularly to the attachment of a booklet to the base layer of the label because in spite of providing a hanger for hanging the label, the useful area of the label of the label is uninterrupted and can therefore be advantageously used for attaching a booklet. It is especially advantageous for pharmaceutical applications that the booklet containing useful information is firmly attached to the product so that it can not be confused or carelessly discarded when unpacking the pharmaceutical product. CA 02263512 199902-16 Instead of using a booklet it may be advantageous to attach one or more additional layers to the base layer, for example by means of an adhesive, wherein the additional layers can be used in a similar manner as such a booklet. In summary, the improved label with hanger is simple and inexpensive to produce, easy to apply and use, and provides especially the possibility of providing a large area for information and instructions even on small bottles or containers. The invention also concerns a container with a label comprising a substantially rectangular base layer including a central main portion and a peripheral portion, a first and a second longitudinal side substantially parallel to each other, a first and a second transverse side perpendicular to the first and the second longitudinal side; a layer of pressure-sensitive adhesive applied to at least a part of its back side; and at least a first die cut line at the peripheral portion of the substantially rectangular base layer, said first die cut line extending from a first root to a second root such that a hanger is defined which remains joined with the central main portion of the base layer at the first and the second root, said hanger having at least a middle portion extending along said first longitudinal side and a first and a second side section extending along said first and said second transverse side, respectively, said first and said second root being located at said second longitudinal side and arranged on the container such that they are located at two positions opposed to each other. The invention makes it possible that a container, such as an infusion bottle, can be suspended vertically with the opening pointing downward. The outer surface of the container can be used to its optimum for the presentation of information. In a particularly advantageous embodiment of the labeled container the label is arranged such that the second longitudinal side extends parallel to the lower edge of the container. In a further advantageous embodiment of the labeled container, the container comprises a substantially cylindrical bottle and a tapered bottle neck and wherein the middle portion of the hanger extends into the region of the bottle neck. Thus, the hanger can be easily gripped CA 02263512 199902-16 since it is not fitted closely to the bottle neck but rather extends away from the bottle neck because of its tapered structure. Advantageously, the first and the second side section of the hanger are arranged on the container such that they extend parallel to a mantle line of the container and are located close to each other or are overlapping each other. Brief Description of the Drawings The invention will now be described in accordance with the drawings schematically illustrating exemplary embodiments of the invention in which: Fig. 1 is a plan view of a preferred label in accordance with the invention; Fig. 2 is a plan view of the rear side of the label presented in Fig. 1 ; Fig. 3 is a front view of an infusion bottle to which the label of Fig. 1 is attached; Fig. 4 is a view of a bottle as seen from a side opposed to that of Fig. 3; Fig. 5 shows the infusion bottle of Figs. 3 and 4 in an upside down position with the hanger peeled apart; Fig. 6 shows the infusion bottle of Fig. 1 in which the hanger is turned into a position ready for hanging the bottle; Figs. 7 and 8 illustrate the process of attaching the label in accordance with the invention to an intravenous bottle; CA 02263512 199902-16 Fig. 9 is a plan view of an alternative embodiment of the label in accordance with the invention; Fig. 10 is a front view of an infusion bottle with the label of Fig. 9; Fig. 11 is a plan view of a further alternative embodiment of the label in accordance with the invention; Fig. 12 is a plan view of a further alternative embodiment of the label in accordance with the invention; Fig. 13 is an oblique view of the label shown in Fig. 12 having a booklet; Fig. 14 is a plan view of the label shown in Fig. 12 having a booklet attached to it in an alternative manner; Fig. 15 is a plan view of the label shown in Fig. 12 having two additional layers and a peel off section; and Fig. 16 is plan view of an alternative embodiment of the label in accordance with the invention. Detailed Description of the Invention Fig. 1 is a plan view of a preferred embodiment of the new label 1. It comprises a base layer 2 of synthetic material, preferably polyester, of a thickness of 0.1 mm. The material must be generally strong enough to support a bottle. The base layer 2 is rectangular and has four rounded corners. The label comprises a first longitudinal side 3 (drawn at the top of the drawing) and a second longitudinal side 4 (drawn at the bottom of the drawing). The label comprises a first transverse side 5 (drawn at the left in Fig. 1) and a second transverse side 6 CA 02263512 199902-16 (drawn at the right in Fig. 1). The term "longitudinal side" is used in the following to describe the longer sides of the rectangular base layer and the term "transverse side" is used in the following to describe the shorter sides of the rectangular base layer. A die cut line 7 is provided which originates at the comer between the first transverse side and the second longitudinal side 4 (left bottom corner of Fig. 1) and extends along the first transverse side 5, the first longitudinal side 3, the second transverse side 6, and the second longitudinal side 4, until it ends approximately in the center of the second longitudinal side 4. The die cut line 7 defines a hanger 8 with a substantially constant width at the peripheral portion 2a of the base layer 2 comprising a first side section 9, a middle portion 10, and a second side section 11. The hanger 8 remains connected with the remaining central main portion 2b of the base layer 2 at the end points of the die cut line 7. The end points thus define a first and a second root 16, 17 for the hanger 8. The first and the second root 16, 17 are spaced from each other by a distance p/2 which is approximately equal to half the perimeter of the bottle 15 to which the label 1 is to be attached, as will be explained in detail in the following. The ends of the die cut line 7 are curved in order to relieve sheering stresses which occur when the bottle is suspended upside down by means of the hanger. A further die cut line 12 is provided which extends parallel to that part of the die cut line 7 which defines the middle portion 10 of the hanger 8. The further die cut line 12 is closer to the middle of the label and intersects the die cut line 7 where the latter defines the first side section 9 and the second side section 11 thus forming a closed loop. That section of the base layer 2 which is surrounded by the die cut line 7 and the further die cut line 12 is therefore detached from the label 1 , in other words, the middle portion 10 of the hanger 8 is in a spaced relation to the remaining central main portion 2b of the base layer 2. Information for identification of the product and instructions for the handling of the product may be provided on the top surface of the label as indicated in Fig. 1 by the cross-hatched area which extends over the central main portion 2b of the label and into the space between the first and the second root 16,17 and to the second longitudinal side 4. In other words, the entire top surface of the label can be used as a carrier for information with the exception of CA 02263512 199902-16 the hanger 8 which should preferably not be used for printing product information on it because it is normally twisted when it is used for hanging the bottle. An area for printing a serial number and an expiry date, for example, may be reserved for the user. Information regarding this are usually printed on the label with a thermal printer or an ink-jet printer shortly before the individual label is attached to a bottle. The label has a total length equal to the perimeter p of the bottle to which the label is to be attached plus approximately the width of the second side section 11. Fig. 2 is a plan view of the rear side of the label already shown in Fig. 1. The rear side is provided with a layer of pressure-sensitive adhesive 13 in order to provide a firm bond of the label to a bottle to which it is to be applied. The layer of the pressure- sensitive adhesive 13 extends over the central main portion 2b of the label and into the region between the first and the second root 16, 17 up to the second longitudinal edge 4. The layer of the pressure-sensitive adhesive 13 also includes a small amount of adhesive 21 on the first side section 9 of the hanger 8, which forms the leading edge when the label is applied to a bottle as will be described later. A small amount of pressure-sensitive adhesive is also applied to the rear side of the second side section 11 of the hanger 8. This small amount of pressure-sensitive adhesive is symbolized by four dots 14 in the drawings of Figs. 1 and 2. Fig. 3 shows the label applied to an infusion bottle 15. The label of Fig. 1 is wrapped around the cylindrical portion 15a of the infusion bottle 15 such that the central main portion 2b is firmly attached to the cylindrical portion 15a of the bottle 15 by means of the layer of pressure-sensitive adhesive 13. The middle portion 10 of the hanger 8 is situated at the tapered bottle neck portion of the bottle 15 so that a small distance remains to the outer wall of the infusion bottle. As can be seen in Fig. 3, the first side section 9 joins the middle portion 10 of the hanger 8 with the first root 16. Since the total length of the label 1 in the direction of the longitudinal sides 3 and 4 is equal to the perimeter of the infusion bottle plus approximately the width of the side sections 9 or 11 of the hanger 8, the second side section 11 overlaps the first side section 9, as can be seen in Fig. 3. The second side section 11 is CA 02263512 199902-16 secured on the first side section 9 by means of the four dots 14 of pressure-sensitive adhesive. Instead of providing the four dots of pressure-sensitive adhesive on the rear side of the second side portion 11 they could also be provided on the front side of the first side section 9 for securing the second side section 11 on the first side section 9. Fig. 4 shows the bottle from Fig. 3 seen from the "rear side" in comparison to Fig. 3. In Fig. 4, the hanger 8 appears to be without a connection to the central main portion 2b of the label 1 since its only connection is realized through the side section 9 and 11 which, however, are located on the rear side and are therefore not seen in Fig. 4. However, Fig. 4 shows clearly the central main portion 2b of the label 1 which is attached to the cylindrical portion 15a of the bottle 15. Furthermore, the second root 17 can be seen in Fig. 4. The root 17 is situated opposite to the first root 16 (visible in Fig. 3) since both roots are separated from each other by a distance equal to half of the perimeter of bottle 15. In order to use the labeled infusion bottle and to suspend it upside down on the hanger with the opening of the bottle in a downward position, the connection between the first side section 9 and the second side section 11 realized by the dots 14 of pressure-sensitive adhesive can be broken easily by gripping and pulling the hanger 8. Thus the hanger is unfolded. This situation is presented in Fig. 5 which shows the infusion bottle 15 with its opening in an upside down position (as it is used for dispensing the infusion) with the unfolded substantially rectangular hanger 8. The hanger can then be turned over the bottom portion of the bottle, as shown in Fig. 6, and a hook of an infusion stand (not shown) may then be inserted between the hanger and the bottle 15 for suspending the bottle with its opening in an upside down position from the hanger 8. The hanger is thereby stretched and attains the shape of an inverted V (not shown). CA 02263512 199902-16 The handling of the infusion bottle 15 is the same as described previously even if an infusion tube is connected to the opening of the bottle before the hanger 8 is peeled apart from the bottle 15. As it is apparent from the description above, there is no need to turn the hanger 8 over the head of the bottle 15 and thus the unfolding of the hanger is in no way impeded by an infusion tube which may be already inserted into the opening of the bottle 15. Fig. 7 illustrates a method in agreement with the invention for attaching a label 1 to an infusion bottle 15. The labels 1 are provided on a carrier face 18 being coated with a smooth layer. The labels stick to the carrier face 18 with a small adhesion force only. The labels 1 are arranged on the carrier face 18 such that their transverse sides are adjacent each other. The carrier face 18 and the labels 1 applied thereto move in the direction of arrow Al towards the infusion bottle 15 which is to be labeled. The carrier face 18 is drawn over an edge 19 having a small radius so that the label 1 does not follow the bending motion of the carrier face 18 around the edge 19 but rather continues is straight motion and moves close to the infusion bottle 15. The infusion bottle 15 is supported on rotating rollers (not shown) and is rotated in a direction of arrow A2 with a circumferential speed which is approximately equal to the advance speed of the carrier face 18. The label, which is arranged on carrier face 18 such that the first side section 9 is the leading edge, comes into contact with the rotating infusion bottle 15. Since there is provided a small amount 21 of pressure-sensitive adhesive at the rear side of the first side section 9 (cf. Fig. 2), the label 1 is connected to the cylindrical portion 15a of the infusion bottle 15 and follows the motion of the surface of the bottle and thereby is wrapped around the bottle 15. It is important that the first side section 9 of the hanger 8, which is joined to the first root 16, constitutes the leading edge so that the label 1 is peeled off by the bottle 15 without problems. Problems would be expected if the label 1 would come into contact with the bottle first through the second side section 11 of the hanger 8 which has a much longer and therefore a much less stable connection to the second root 17. CA 02263512 199902-16 Fig. 8 shows the situation in which label 1 has been partially applied to the infusion bottle 15. The label is then pressed to the cylindrical portion 15a of the infusion bottle 15 by a roller (for the sake of clarity not shown in the drawing) so that it is properly attached to the bottle. When the bottle 15 has completed one complete turn, the following edge, viz. the second side section 11, comes into contact with the first side section 9 and is bonded to it through the dots 14 of pressure-sensitive adhesive as shown in Fig. 1. Fig. 9 is a plan view of a further embodiment of the new label 1. It comprises a base layer 2 which is rectangular and has four rounded corners. The label comprises a first longitudinal side 3 and a second longitudinal side 4. The label comprises a first transverse side 5 and a second transverse side 6. A die cut line 7 is provided which originates at the corner between the first transverse side and the second longitudinal side 4 (the left bottom corner in Fig. 1) and extends along the first transverse side 5, the first longitudinal side 3, the second transverse side 6, and the second longitudinal side 4 until it terminates approximately in the middle of the second longitudinal side 4. The die cut line 7 defines a hanger 8 with approximately constant width at the peripheral portion 2a of the base layer 2 which comprises a first side section 9, a middle portion 10, and a second side section 11. The hanger 8 remains connected to the remaining central main portion 2b of the base layer 2 at the end points of the die cut line 7. Thus, the end points define a first and a second root 16, 17 for the hanger 8. The first and the second root 16, 17 are spaced from each other by a distance p/2 which is approximately equal to half the perimeter of the bottle 15 to which a label is to be applied. This will be explained in detail in the following. The ends of the die cut line 7 are curved for reducing sheer forces which occur when the bottle is suspended in an upside down position by means of the hanger. A pressure-sensitive adhesive is applied to the rear side of the base layer 2 as it is shown in Fig. 2 with respect to the first embodiment. A small amount of pressure-sensitive adhesive is also applied to the rear side of the first and the second side section 9, 11 of the hanger 8. CA 02263512 199902-16 These small amounts of pressure-sensitive adhesive are symbolized in the drawings of Fig. 9 by four dots 14 on the side section 11 and four further dots 20 on the side section 9. A further die cut line 12 is provided which extends parallel to that part of the die cut line 7 defining the middle portion 10 of the hanger 8. The further die cut line 12 is closer to the middle of the label and intersects the die cut line 7 where the latter defines the first side section 9 and the second side section 11, respectively, thus forming a closed loop. This section of the base layer 2 which is surrounded by the die cut line 7 and the further die cut line 12 is therefore detached from the label 1. In other words, the middle portion 10 of the hanger 8 is therefore in a spaced relation from the remaining central main portion 2b of the base layer 2. Information for identifying the product and usage instructions for the handling of the product may be provided on the front side of the label as it is shown in Fig. 1 by the cross-hatched area which extends over the central main portion 2b of the label, and also the space between the first and the second root 16, 17, and to the second longitudinal side 4. In other words, the entire front side of the label can be used as a carrier for information with the exception of the hanger 8 which should preferably not be used for printing information on it since it is usually twisted when it is used for suspending the bottle. For example, an area for printing a serial number and an expiry date may be reserved for the user. This type of information is usually printed on the label with a thermal printer or an ink- jet printer shortly before the individual label is attached to a bottle. The label has a total length approximately equal to the perimeter p of a bottle to which a label is to be applied. Fig. 10 shows the label applied to an infusion bottle 15. The label of Fig. 9 is wrapped around the cylindrical portion 15a of the infusion bottle 15 such that the central main portion 2b is firmly attached to the cylindrical portion 15a of the bottle 15 by means of the layer 13 of pressure-sensitive adhesive. The middle portion 10 of the hanger 8 is thus applied to the CA 02263512 199902-16 tapered bottle neck portion of the bottle 15 so that a small distance remains to the outer wall of the infusion bottle. As can be seen from Fig. 10 the first side section 9 connects the middle portion 10 of the hanger 8 to the first root 16. Since the total length of the label lin direction of the longitudinal sides 3 and 4 is equal to the perimeter of the infusion bottle, the second side section 11 is adjacent the first side section 9 as can be seen in Fig. 10. The first side section 9 and the second side section 11 are secured to the bottle by means of the four dots 14 of pressure-sensitive adhesive and the four further dots 20 of pressure-sensitive adhesive, respectively. Fig. 11 is a plan view of another alternative embodiment of the label in accordance with the invention. The label is designed and handled in the same manner as the label of Fig. 9. The only difference is that it is not provided with a further die cut line and thus it is easier to manufacture. Due to the fact that there is no further die cut line (such as the die cut line 12 in Fig. 9) the middle portion 10 of the hanger 8 borders directly on the central main portion 2b of the base layer 2. Fig. 12 is a plan view of a another embodiment of the new label 1. It comprises a base layer 2 which is rectangular and has four rounded corners. The label has a first longitudinal side and a second longitudinal side 4. The label has a first transverse side 5 and a second transverse side 6. A die cut line 7 is provided which originates from a region in the vicinity between the second transverse side 6 and the second longitudinal side 4 ( the right bottom comer in the drawing). Conversely to the other embodiments described thus far the die cut line 7 does not originate directly at a corner but only close to it. The die cut line extends - parallel to the second longitudinal side 4 - to the second transverse side 6 and follows in a substantially constant distance the second transverse side 6 until it comes close to the first longitudinal side 3. It follows further the first longitudinal side 3 until it comes close to the first transverse side and follows - again in a relative constant distance - the first transverse side 5 until it come close to the second longitudinal side 4. It follows further the second longitudinal edge 4 and terminates approximately in the middle of the second longitudinal edge 4. The die cut line 7 CA 02263512 199902-16 defines a hanger 8 at the peripheral portion 2a of the base layer 2 comprising a first side section 9, a middle portion 10, and a second side section 11. The hanger 8 remains connected to the remaining central portion 2b of the base layer 2 at the end points of the die cut line 7. The end points thus define a first and a second root 16, 17 for the hanger 8. The first and the second root 16, 17 are spaced from each other by a distance p/2 which is approximately equal to half the perimeter of the bottle 15 to which the label 1 is to be applied. The ends of the die cut line 7 are rounded for reducing sheer stresses when a force is exerted on the hanger 8. A further die cut line 12 is provided which extends parallel to that portion of the die cut line 7 which defines the middle portion 10 of the hanger 8. The further die cut line 12 is situated closer to the middle of the label and intersects the die cut line 7 where the latter defines the first side section 9 and the second side section 11, respectively, thus forming a closed loop. That section of the base layer 2 which is surrounded by the die cut line 7 and the further die cut line 12 is thus separated from the label 1. In other words, the middle portion 10 of the hanger 8 is in a spaced relationship to the remaining central main portion 2b of the base layer 2. The label has a total length which is equal to the perimeter p of a bottle to which a label is to be applied plus the width of the second side section 11. It is processed, i.e. it is applied to a bottle, by and large in a similar manner as the label of Fig. 1. However, the label of Fig. 12 must be processed in such a manner so that the second transverse side 6 constitutes the leading edge, i.e. the side which comes first into contact with the bottle to be labeled because the second side section 11 at the second transverse side 6 is situated close to the root 17 and thus held in a stable position necessary for the labeling process. Fig. 13 shows the label of Fig. 12 in an oblique view. A booklet 22 is attached to the central main portion 2b of the label 1. The booklet is attached to the label such that it is not located on top of the peripheral hanger 8. This way, the booklet does not interfere by any means with the handling of the infusion bottle and the hanger 8. CA 02263512 199902-16 The booklet may contain several pages which lie on top of each other and are stapled together or are bonded together at their spine 27 by means of an adhesive. The bottom page of the booklet is attached to the label by means of an adhesive. The booklet is kept closed by means of an adhesive strip 23which is attached at one of its ends to the cover page of the booklet close to its book edge 28 and with its other end to the base layer 2. In order to open the booklet 22 and to read the information the adhesive strip 23 can be peeled off from the base layer 2 of the label 1 and after the booklet 22 is read the adhesive strip can be attached again to the base layer 2 in order to keep the booklet closed again. Needless to say, all pages of the booklet including the cover page at the top as well as the front side of the base layer 2 can be provided with printed information. Fig. 14 shows again the label of Fig. 12, however it is combined with a booklet 22 in an alternative manner. The booklet 22 of Fig. 14 comprising a spine 27 and a book edge 28 is situated under a closure strip 24 which extends over the spine 27 of the booklet at one end and over the book edge 28 of the booklet 22 at the other end. The end section 29 (cross- hatched in the drawing) of the closure strip 24 which extends beyond the spine 27 of the booklet 22 is provided with a permanent adhesive at its underside so that it is firmly and permanently fixed to the central main portion 2b of the label. The end section 30 of the closure strip 24 which extends beyond the book edge 28 of the booklet 22 is provided with a releasable adhesive (cross-hatched area) so that the end section can be peeled off for opening the booklet 22 and it can be re-attached again to the base layer 2 in order to close the booklet again. Aside from the end sections 29 and 30 the closure strip is free of adhesive. The booklet is not connected to the base layer 2 so that it can be removed from the label for the purpose of reading it. According to the embodiment shown in Fig. 15 the label of Fig. 12 can be provided with additional layers which can serve as carriers for information. In Fig. 15 there are provided two additional layers, a first layer 25, which is the bottom layer, and a layer 26, which is the top layer. The bottom layer 25 which is in contact with the base layer 2 of the label 1 is CA 02263512 199902-16 attached to the base layer 2 by means of a permanent adhesive attached to the underside of one end section 31 (cross-hatched in Fig. 15). The second layer 26 is attached to the first layer 25 by means of a layer of permanent adhesive much in the same way as the first layer is bonded to the base layer 2. However, the second layer is larger so that it extends beyond the adhesive-free end section of the first layer 25. The end section 32 (cross-hatched in Fig. 15) of the second layer 26 which extends beyond the adhesive-free end section of the first layer is provided with a releasable adhesive on its underside facing the base layer 2 so that the two additional layers 25, 26 remain firmly attached to the base layer 2 of the label 1. In order to access the rear side of the second layer 26, the front side of the first layer 25, the rear side of the first layer 25, and the central main portion 2b of the base layer for reading information provided thereon, the second layer 26 can be easily peeled off from the end section 32 provided with a releasable adhesive and folded back. Further layers of the same type as the first layer 25 can be provided if additional space is needed for information. Furthermore, the label of Fig. 15 is provided with an area 33 which can be imprinted by the user of the label, e.g. a manufacturer of pharmaceuticals, with a serial number and/or an expiry date which is symbolized, for example, in Fig. 15 by "06.06.1997 1234". The label of Fig. 15 is further provided with an area which is coated with a release layer 34 on the front side of the central main portion 2b of the base layer 2. This release layer is covered by a peel-off layer 35 of synthetic material or paper. The peel-off layer is provided with a layer of pressure-sensitive adhesive at its surface facing the base layer 2. This peel-off layer may carry on its front side the same or a different imprint as the area 33. The peel-off layer 35 can be easily removed, because it is arranged on the release layer 34. It can then be pasted onto an index card or a similar object in order to make the data imprinted thereon available. Since the peel-off layer 35 was arranged on the release layer 34, its layer of pressure-sensitive adhesive remains sticky and it adheres thus securely on the surface of said index card onto which it is pasted later on. CA 02263512 199902-16 Fig. 16 shows a further alternative embodiment of the label in accordance with the invention. In this embodiment the die cut line 12 does not only extend in parallel to the middle portion of the hanger 8 but extends also in parallel to both side sections 9 and 11 and leads into the die cut line 10 in the region of the roots 16 and 17 so that one closed die cut line results. The die cut line does not comprise end points in the region of the roots 16 and 17, i.e. in those regions in which the force of the hanger is directed into the main portion 2b of the label while the infusion bottle is being suspended. This has proven to be advantageous with respect to resistance to tear of the hanger. The label of Fig. 16 is constructed like the label shown in Fig. 1 aside from the die cut line 7, 12 which forms a closed curve. Remaining features of the label are as previously described with reference to Fig. 1.