Patent Application
20070096379
1. Field of the Invention
The invention concerns a method and an installation for the insertion of supplements into printed products, as well as a subsequent combined printed product, according to the generic term of the corresponding independent claims.
2. Description of Related Art
Installations and methods of insertion for the manufacture of printed products are generally known, Accordingly, supplements such as part products or advertising material are inserted into printed products such as newspapers, periodicals, brochures, etc., thus forming a combined printed product. To this end the previously completed and already folded printed product. are opened across the fold and a supplement is inserted.
In practice such supplement have presented the disadvantage that they, depending on the handling of the printed products during distribution or by the reader, may slide out.
Another common practice is to affix advertising material such as cards or product samples into a particular position on a predetermined page of a periodical. As the page number is stipulated, this process takes place during the assemblage of the individual sheets of the periodical. A corresponding installation is revealed in the EP 0 540 865 A1. It demonstrates how a rotating row of controllable clamps grips the supplement at a point of supply, guides it past an adhesion application device, and presses it against the exterior surface of the partially assembled printed product. To this end the printed product is supported by a surface element. The clamp presses the supplement against the printed product for as long as it takes the adhesion to become sufficiently stable. This procedure does not permit a supplement to be inserted into a completely assembled printed product.
It is therefore the object of the invention to create a method and an installation for the insertion of supplements into printed products, as well as a subsequent combined printed product which prevents the escape of the supplement. A further object of the invention is to enable a means of supplement allocation to a printed product, which is as flexible as possible, in particular to a previously completed printed product. It is a further object of the invention to achieve this by simple means and on economical terms.
This object is achieved by a method and a installation for the insertion of supplements into printed products, as well as a subsequent combined printed product.
In the method according to the invention for the insertion of supplements into printed products, wherein a leader edge of he supplement is aligned at least approximately against the fold or the spine of the printed product, a bonding agent is therefore applied to the supplement in the proximity of its leader edge, or to the unfolded printed product in the proximity of its fold or of its spine, prior to the insertion. The supplement is inserted into the printed product and by means of the bonding agent the supplement is attached to the printed product in at least one place near the leader edge. The direction of movement of the supplement during insertion, preferably, is perpendicular to the direction of the spine or fold.
Thus, the supplement is affixed to printed product and prevented from dropping out. Being situated in the proximity of the supplement's leader edge and therefore also near the fold or the spine of the printed product, the adhesion sits in an area not unfolded prior to reading. This virtually eliminates the danger of the supplement merely hanging form the adhesion and consequently being torn out. The adhesion therefore protects the supplement from escaping from the folded or possibly lightly thumbed printed product.
A further advantage is the fact that a supplement can be added to a printed product after its completion. This contrasts with the known adhesion methods, which must take place during assemblage presents an excessive restriction, as the order in which the individual sections of a printed product are provided frequently does not allow for it.
Essentially, the bonding agent may be applied to the printed product or the supplement. Applying the bonding agent to the supplement instead of the printed product offers the advantage that a secure adhesion is always guaranteed, regardless of its size compared to the supplement and its end position after the insertion. Thus it is also possible to position the means to apply the bonding agent outside an insertion drum or insertion track. This is easier to construct on one hand and avoids contamination of the machines on the other.
Being controlled by a pulse or phase signal, the bonding agent is applied e.g. to a copystream or imbricated stream or to individually conveyed supplements, advantageously immediately prior to insertion. ‘Immediately’ meaning e.g. that this takes place less than a meter or a few hundredths of a second respectively before the supplement is inserted. Therefore, when a ho-setting adhesive is used as the bonding agent, the adhesive remains warm and effective after insertion and during compression.
Thus, the supplement is merely inserted or interleaved and not additionally pressed down in the desired position by a special pressure device as is the case e.g. with pasted cards. Experiments have shown that the supplement nevertheless ends up essentially with its leader edge against the fold or spine within the printed product and that a reliable adhesion is achieved. In case the printed product should be opened only marginally, an agglutinable bonding agent may be spread during insertion between the supplement and the printed product across the last few centimeters of the motion, which increases the adhesion area.
A card-pasting device on the other hand, has to position a card on a particular page of the printed product during assemblage, and them hold it down with a corresponding means until the adhesion reached sufficient efficacy. In contrast, according to the invention the supplement can be inserted or interleaved in the usual manner and then left to its own devices. As the printed product is closed again, the adhesion is automatically compressed. In another advantageous embodiment of the invention the bonding area, i.e. the now combined printed product, is compressed by clamps or a clasp along the fold in order to improve the bonding.
Depending on the geometry of the insertion installation and on its position in relation to gravity, the track of the supplement differs at the point of insertion. In those cases in which a particular page of the supplement first comes into contact with the printed product and this page then slides along the printed product, the bonding agent is advantageously applied to the opposite page. If the insertion, rather, takes place in a horizontal direction, this will typically although not necessarily be the front of the supplement. In principle however, the bonding agent can be applied to the front or the back of the supplement. The bonding agent can also be applied to several places along the leader edge of the supplement in order to increase the stability of the adhesion. Similarly, the bonding agent can be applied to several positions along the fold.
The bonding agent can be removed from the printed product and/or from the supplement—typically by the reader—without damaging it.
The supplement is typically another printed product, but can in principle be any given flat and preferably flexible object, e.g. a product sample. Advantageously, the supplement is of a certain minimal size e.g. a at least half of the surface of the printed product, so that the supplement is affixed more firmly by the friction with the printed product.
The method can be implemented in known insertion drums or insertion tracks.
The installation for the insertion of supplements into printed products such as newspapers, periodicals, brochures, etc. Comprises a feeder for the supply of supplements, an insertion installation for the opening of the printed products and for the insertion of the supplements with a leader edge towards a fold or a spine of the relevant printed products, wherein the installation comprises a means to apply a bonding agent to the supplement in the proximity of the leader edge or to the unfolded product in the proximity of the fold or of the spine prior to the insertion.
The combined printed product, thus, comprises a printed product with an inserted supplement, wherein the printed product and the supplement are attached by at least one adhesive point or bonding area, and wherein die adhesive point or adhesive points concerning the supplement are situated in the proximity of an edge of the supplement, which edge is essentially aligned along a fold or a spine of the printed product.
The properties of the method claims can be combined in analogy with the installation claims, and vice versa.
In the following the object of the invention is explained in more detail on the basis of a preferred example of embodiment, which is illustrated in the enclosed figures. Demonstrating in schematic diagrams are:
The reference symbols used in the figures and their meaning are summarily listed in the List of Reference Symbols. Fundamentally identical parts in the figures are indicated with identical reference symbols.
In the following, the invention is illustrated on the basis of a folded printed product, e.g. a newspaper which is unfolded for the purpose of reading or a periodical which is folded and fastened in the fold by staples. Of course, the same is also applicable for bound or glued multi-paged printed products, into which a supplement is to be inserted. Such printed products comprise a spine and the supplement is inserted towards the spine on the inside of the product.
The supplements 2 are advantageously conveyed in a pulsed or phased manner, e.g. in an imbricated stream or copystream, in a stacked copystream, singly, etc., in any case in such a manner that the leader edge 9 of the supplement 2 is exposed in the operative range of the injector 4. The adhesive 3 is applied to the supplement 2 by the injector 4 at one or several points near or along the leader edge 9. If one or several of the supplement 2 are missing, e.g. in a pulsed supplement loader, the application of the adhesive is suppressed accordingly.
Advantageously, the adhesive is administered a few hundredths of a second prior to the insertion of the supplements. A typical production speed is e.g. 40,000 copies per hour. There may be several different supplement loaders 6, each equipped with its own injector 4. In this manner various supplements 2 can be inserted and affixed in the same printed product 1.
Subsequently the supplement 2 is inserted or interleaved in a generally known manner by the supplement loader 6 into the printed product 1 delivered and opened by means of the insertion drum 5. The printed product 1 is carried on by the insertion drum 5 and simultaneously closed, the adhesive 3 being pressed against the inside of the printed product 1 in the proximity of the fold 8. Thus, the supplement 2 and the printed product 1 are spot-fastened and the supplement 2 is protected from sliding out.
Advantageously, the printed product 1 is compressed by clamps 10 at least in the vicinity of the fold 8 as it is closed. This improves the quality of he adhesion.
In the example here presented, the course of motions in an insertion drum 5 is shown in schematic diagram. Of course other insertion installations in accordance with the invention may be employed instead, which insertion installations open a printed product 1 and insert another printed product or a flat object as a supplement 2.
| Number | Date | Country | Kind |
|---|---|---|---|
| 1747/05 | Oct 2005 | CH | national |
