WO2023200339A1 - Book block with edge image - Google Patents

Book block with edge image Download PDF

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Publication number
WO2023200339A1
WO2023200339A1 PCT/NL2023/050195 NL2023050195W WO2023200339A1 WO 2023200339 A1 WO2023200339 A1 WO 2023200339A1 NL 2023050195 W NL2023050195 W NL 2023050195W WO 2023200339 A1 WO2023200339 A1 WO 2023200339A1
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WO
WIPO (PCT)
Prior art keywords
image
book block
partial images
edge
leaves
Prior art date
Application number
PCT/NL2023/050195
Other languages
French (fr)
Inventor
Gerda PENTERMAN
Original Assignee
Penterman Gerda
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
Application filed by Penterman Gerda filed Critical Penterman Gerda
Publication of WO2023200339A1 publication Critical patent/WO2023200339A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D1/00—Books or other bound products
    • B42D1/009—Books or other bound products characterised by printed matter not otherwise provided for

Definitions

  • the invention concerns a book block with an image at the edge and a method of manufacturing such a book block.
  • Book blocks are known and usually comprise leaves that are mutually connected at a spine side.
  • the leaves further each comprise a free circumference.
  • the spine side and the free circumference of each leaf enclose a front- and rear-page face thereof.
  • the edge of the book block is defined by the joint free circumferences of these leaves.
  • the invention provides a book block, comprising: leaves that are mutually connected at a spine side and each further comprise a free circumference, wherein the spine side and the free circumference enclose a front- and rear-page face of each leaf, and an edge that is defined by the free circumference of the leaves, wherein multiple leaves are provided with a partial image that is arranged at the free circumference and extends inward therefrom over the front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form an image at the edge.
  • each partial image preferably extends over both the front- as well as rear-page face of the respective leaf via the free circumference thereof.
  • a partial image then runs continuously from the one page face over the free circumference of the leaf onto the other page face. This improves visibility of the image at the edge as seen on both front and rear sides.
  • image in broadly understood to mean a two-dimensional visualisation, including illustrations, photos, patterns and text matter.
  • each leaf can be defined by one or more than one free edge.
  • the leaves of the book block are not mutually connected and the book block can be browsed.
  • the free circumference of each of the leaves preferably comprises a head edge, a front edge opposite the spine side and a tail edge, that jointly define a head side, a front side and a tail side, respectively, of the edge.
  • Head and tail herein refer as usual to upper and lower end of the book block as it is held by a reader in reading direction.
  • the partial images can be arranged at at least one of the head edges, the front edges and the tail edges of the multiple leaves, whereby the image is formed at at least one of the head side, the front side and the tail side of the edge.
  • the image can extend over multiple sides of the edge or over only a part of one of the sides of the edge.
  • the partial images are arranged at subsequent leaves of the book block.
  • the partial images can connect to each other to form the image as one connected whole in at least a closed state of the book block.
  • the closed state of the book block refers to the state in which the book block is unopened and all leaves of the book block are in contact at the free circumference.
  • the edge is continuous in this case. In contrast, the free circumferences are not all in contact any more in an opened state of the book block.
  • the edge is then laid open. In a fully opened state of the book block, it for example lies opened on a flat surface and an angle of 180° arises between the first and the last leaf of the book block.
  • the partial images are cut-outs of the image. That is to say that the partial images are cut-out parts of the image as it is reproduced at the edge of the book block by the joint partial images, as seen perpendicular on the edge in the closed state of the book block.
  • source image in this context, which refers to the image that is reproduced at the edge of the book block by the joint partial images.
  • the partial images are, preferably partly overlapping or adjacent, cutouts of a source image that is reproduced as the image at the edge of the book block by the joint partial image, as seen perpendicular on the edge in the closed state of the book block.
  • the partial images can be deformed cut-outs of the image. These deformed cutouts are preferably configured to reproduce the image undeformed at the edge in the closed state of the book block. Additionally or alternatively, the deformed cut-outs of the image can be elongated in a direction transverse to the edge. This variant is particularly advantageous for an image at the front side of the edge, where the leaves in an opened state of the book block slide off from each other. The image can even be presented fully undeformed in this manner.
  • the source image undergoes an elongation in a direction which corresponds to a direction transverse to the edge when the image is arranged at the edge, which elongation in the deformation of the cut-outs is taken into account and is thus visible in the separate partial images.
  • the deformation is at least partially, and preferably fully, compensated in the image formed by the joint partial images at the edge, at least as seen perpendicular on the edge in the closed state of the book block.
  • the deformation in particular the elongation transverse to the edge, moreover aids in also presenting the image well when the book block is partially or completely laid open.
  • subsequent cut-outs of the image and the leaves provided with the partial images exhibit a corresponding order.
  • the image is thereby correctly reproduced at the edge, without disturbances or exchanges of the cut-outs.
  • the partial images preferably extend inward from the free circumference over the front- and/or rear-page face of the respective leaf over a length which is selected such that subsequent partial images are connected to each other in an opened state of the book block, in particular in the fully opened state of the book block.
  • the connecting of the partial images can involve contact and/or overlap.
  • the extending of the partial images over the page face is thus preferably at least as large as the inward length from the free circumference that the leaves slide over each other during the opening of the book block from the closed state.
  • This length is preferably at least 2 mm, more preferably at least 4 mm, as measured perpendicular from the free circumference inwardly over the page face.
  • the partial images extend to at most the whole margin of the front- and/or rear-page face.
  • the margin of the page face is to be distinguished from the type area of the page face within which text and/or illustrations of the book block is or can be arranged, for example by means of a printing process.
  • the partial images run no further than the margin of the front- and/or rear-page face of the leaves of the book block so that text and/or illustrations already present are maintained.
  • the multiple leaves at the free circumference at which the partial images are arranged can be folded back inwardly on themselves.
  • the partial image then runs from and preferably also over the free circumference of the leaf.
  • the leaf hereby exhibits a double leaf thickness near the folded free edge, whereby the book block opens up to a certain degree at the edge, even in the closed state wherein the circumferences are in contact.
  • a part of the partial images that extends over the page faces is hereby made at least partially visible, even in the closed state of the book block.
  • This folding back of the leaf onto itself can be partial, for example within the margin of the page face, or completely to the spine side so that both far ends of the leaf can be connected in the book block at the spine side.
  • the leaves are folded at the front side of the edge.
  • the multiple leaves can be folded back onto themselves completely, wherein the folded edges are connected together at the spine side and form a spine of the book block.
  • the folded edges of such leaves are preferably connect together at the spine side. In this case there is no thickening at the free circumference of the leaves.
  • the book block then stays flat in the closed state as is traditionally customary, in contrast to leaves which are only partially folded back at the circumference whereby the book block at the edge fans out relative to the spine.
  • the partial images can be arranged on the multiple leaves via a folded sheet arranged around at least a part of the free circumference.
  • the image can then be arranged at the edge of an existing book or book block by means of separate sheet onto which the partial images are arranged.
  • the sheet also involves a thickening of the circumference, so that the book block can fan out from the spine towards the edge, also in closed state, wherein the free circumferences of the leaves still touch each other via the sheets arranged thereon.
  • the book block in any form of the invention can also be part of a book which, in addition to one or more than one book block, also comprises a cover.
  • the cover can be provided with a further partial image, a supplemental part of the image or a variant of the image.
  • the invention also provides a method of manufacturing a book block with an image at an edge thereof.
  • This method comprises the step of arranging partial images at a free circumference of multiple leaves of the book block in such a way that the partial image extends inward from the free circumference over a front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form the image at the edge
  • the method preferably comprises the step of generating the partial images based on the image.
  • the partial images can be generated on the basis of a source image that is to be reproduced as the image at the edge.
  • the method comprises generating the partial images as cut-outs of the image, or cut-outs of the source image.
  • the cut-outs can be deformed cut-outs of the source image.
  • the deformed cut-out are generated in such a way that these, as the joint partial images after being arranged at the book block, reproduce the image undeformed at the edge in the closed state of the book block.
  • the deforming preferably comprises elongating the image and/or the cut-outs of the image in a direction transverse to the edge to obtain the partial images as deformed cut-outs.
  • the method preferably comprises deforming the image and/or the cut-outs of the image to obtain the partial images in dependency of at least one of:
  • the size of the edge can comprise a width and/or length or a ratio thereof.
  • a chosen source image is elongated in width according to a chosen number of leaves onto which the partial images, yet to be generated, will be arranged. For each of the leaves a certain width is computed, which is determined based on the thickness of the leaves and the desired length over which the partial images are to extend from the free circumference inward over the front- and/or rear-page face.
  • a width in the range of 4-50 mm, in particular 1 cm, per partial image has proven to work well in practice for multiple book formats.
  • the length of the partial images is determined according to a desired length of the image along the edge, as measured in a direction along the course of the free circumference.
  • the source image is then deformed to the desired length and width.
  • subsequent cut-outs are generated from the deformed source image which are each arranged on one of the chosen leaves, preferably in an order corresponding to that of the cut-outs.
  • the image at the edge faithfully reproduces the source image, also when the book block is somewhat opened.
  • the partial images generated as cut-outs of the image can be arranged in an order corresponding to that of the cut-outs.
  • the method can further comprise determining a length over which the partial images extend inward from the free circumference over the front- and/or rear-page face of the respective leaf.
  • the partial images extend to at most the whole margin of the front- and/or rear-page face
  • the length is at least 2 mm, preferably at least 4 mm.
  • the method can further comprise arranging the partial images on the multiple leaves and subsequently folding the multiple leaves back on themselves at the free circumference on which the partial images are arranged to arrange the partial images in such a way that that these extend inward from the free circumference over the front- and/or rear-page face of the respective leaf.
  • This process makes is possible to first print the partial images on flat, unbundled leaves to thereafter fold these, with optionally in between or thereafter a step of connecting the leaves at the spine side to form a book block of it. In this case, the printing can be skipped, for example when the partial images are only arranged after the folding.
  • the multiple leaves onto which the partial images are to be arranged can be folded back completely on themselves and the folded edges can be connected at a spine of the book block. The same can be done with all leaves of the book block.
  • the method it is further possible in the method to arrange the partial images via a sheet on the multiple leaves.
  • a sheet for example, paper van be used for this sheet, preferably of a foldable and wear-resistant quality.
  • the method in any disclosed embodiment can comprise manufacturing a book block or a book as these are disclosed herein.
  • FIG. 1 -8 show a method of manufacturing a book block with an image at the edge conform the invention
  • FIG. 9-12 show a variant of arranging a partial image on a leaf for a book block wherein the leaf is folded at the free circumference
  • FIG. 13-15 show a further variant of arranging a partial image on a leaf for a book block wherein the leaf is completely folded.
  • FIG.1 shows an image or source image 1 that is to be reproduced at the edge 53 of a book block 5 (see FIG. 8).
  • the source image 1 has a width BO and a length LO.
  • FIG. 2 shows the source image 1 after deformation to a width B1 and a length L1 , which can be determined based on the size of the edge 53 onto which the image 1 has to be arranged and other requirements or factors, for example such as described here- above.
  • the source image 1 can thus be deformed into a deformed source image 11.
  • FIG. 3 shows the deformed source image 11 that is divided into multiple partial images 2.
  • the partial images 2 are shown adjacent to each other here, so that the whole image 1 is comprised by the joint partial images 2.
  • the partial images 2 can also exhibit an overlap in the source image 1 , with or without being deformed.
  • FIG. 4 shows the partial images 2 as cut-outs 22 of the deformed source image 11 .
  • Each cut-out 22 is shown here with a fold line 8, illustrated by a broken line.
  • the source image 1 , the deformed source image 11 , the partial images 2 and the cut-outs 22 are shown as physical objects. However, these and other steps can also relate to digital objects and digital processing.
  • FIG. 5 shows a single cut-out 22 with a single partial image 2 which is folded over its fold line 8.
  • This process can for example be performed with a sheet 3 onto which the partial image 2 of the image 1 is arranged.
  • the fold line 8 is indicated here in the middle of the partial image 2 formed as cut-out 22, but the fold line 8 can also be positioned off- centre.
  • FIG. 6 shows the sheet 3 of FIG. 5 arranged on a leaf 4 for a book block 5.
  • the sheet 3 with the partial image 2 thereon extends over the free circumference 42 of the leaf 4, in particular over a front edge 45 thereof, and over the page face 47 of the leaf 4.
  • FIG. 7 shows a book block 5 that comprises multiple leaves 4 that are each provided with a sheet 3 with a partial image 2 thereon (see also FIG. 6). This concerns a view on the tail side 56 of the edge 53 of the book block 5. In other embodiments of the invention, not all leaves of the book block 5 are provided with a partial image 2.
  • FIG. 8 shows the same book as in FIG. 7 in a perspective view.
  • the image 1 is positioned at the edge 51 of the book block 5 and is a rendition or reproduction of the source image 1 as shown in FIG. 1 .
  • the partial images 2 extend over the front- and rear-page face 47 of the leaves 4, whereby the image is also visible from an oblique perspective, even when the book block 5 is in an opened state.
  • the book block 5 is comprised in a book 6 which further comprises a cover 7.
  • FIG. 1-8 shown an embodiment of the invention in which the partial images 2 are arranged on a separate sheet 3 before these are fixed at the free circumference 42 of multiple leaves 4 of the book block 5.
  • the sheets 3 can also be omitted, wherein the partial images 2 are arranged directly on the leaves 4, for example by means of a graphical process.
  • FIG. 9-15 show such variants.
  • FIG. 9 shows a leaf 4 with a partial image 2 at the free circumference 42 thereof which is preferably directly arranged on the leaf 4.
  • FIG. 10 shows the leaf 4 of FIG. 9 with a fold line 8 at the free circumference of the leaf 4.
  • the fold line 8 runs through the partial image 2.
  • the leaf 4 is folded back onto itself about this fold line 8.
  • FIG. 11 shows the result of the folding step of FIG. 10.
  • the partial image 2 extends from a front-page face 47 of the leaf 4 over the now folded free circumference 42 of the leaf 4 to the rear-page face 47 of the leaf 4.
  • the partial image 2 can extend over only one of the front- and arear-page face 47.
  • FIG. 12 shows a detailed view of FIG. 11 of the folded free circumference 42 of the leaf 4.
  • FIG. 13 shows, similar to FIG. 9, a leaf 4 with a partial image 2 arranged thereon.
  • a fold line 8 runs in the middle of the leaf 4 over which the leaf 4 is to be folded double or in half.
  • FIG. 14 shows the doubly folded leaf 4 with the partial image 2 at the free circumference 42 of the leaf 4.
  • the partial image 2 is arranged at the front edge 45 of the leaf 4 and extends from this front edge 45 over the front- and rear-page face 47 of the leaf 4.
  • the partial image 2 can extend over both the front- as well as rear-page face 47 via the free circumference 42 of the respective leaf 4.
  • the partial image 2 then runs continuously from the front-page face 47, over the free circumference 42 to the rear-page face 47.
  • FIG. 15 shows a detailed view of FIG. 14 of the front edge 45 of the leaf 4 folded in half.
  • This double-folded leaf 4 can be bound with multiple, similar leaves 4 into a book block 5 that comprises an image 2 at the edge 53.
  • the book block 5 can be closed flush as conventional book blocks without the edge fanning out as in FIG. 7 and 8.
  • FIG. 1-8 with the sheet 3 can be combined with the embodiments of FIG. 9-15.
  • the figures show methods that can be performed manually. Machine steps are also possible, in particular when manufacturing the image 1 , 11 and the partial images 2 and when performing the folding steps with technology known in the fields of book printing and book binding.
  • the method of FIG. 1-8 is especially suitable for manual production of the book block 5 while the methods of FIG. 9-15 are also suitable for production by machine in addition to a manual implementation and moreover do not require a separate sheet 3 to arrange the partial images 2 on the leaves 4.
  • the invention can thus be practised in many ways.

Abstract

Book block, comprising: leaves that are mutually connected at a spine side and each further comprise a free circumference, wherein the spine side and the free circumference enclose a front- and rear-page face of each leaf; an edge that is defined by the free circumference of the leaves; wherein multiple leaves are provided with a partial image that is arranged at the free circumference and extends inward therefrom over the front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form an image at the edge. This application further discloses a method of manufacturing such a book block.

Description

Book block with edge image
The invention concerns a book block with an image at the edge and a method of manufacturing such a book block.
Book blocks are known and usually comprise leaves that are mutually connected at a spine side. The leaves further each comprise a free circumference. The spine side and the free circumference of each leaf enclose a front- and rear-page face thereof. The edge of the book block is defined by the joint free circumferences of these leaves.
It is an object of the invention to provide a book block which has an image at the edge.
The invention provides a book block, comprising: leaves that are mutually connected at a spine side and each further comprise a free circumference, wherein the spine side and the free circumference enclose a front- and rear-page face of each leaf, and an edge that is defined by the free circumference of the leaves, wherein multiple leaves are provided with a partial image that is arranged at the free circumference and extends inward therefrom over the front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form an image at the edge.
Because the partial images of the multiple leaves are positioned at the free circumference therefor, the image is visible when the book is closed.
Because the partial images of the multiple leaves are not only positioned at the free circumference thereof, but also extend inward from this free circumference over the front- and/or rear-page face of the respective leaf, the image remains visible when the book block is opened and the leaves then slide off over each other and/or come to be separated. Each partial image preferably extends over both the front- as well as rear-page face of the respective leaf via the free circumference thereof. A partial image then runs continuously from the one page face over the free circumference of the leaf onto the other page face. This improves visibility of the image at the edge as seen on both front and rear sides.
The word ‘image’ in broadly understood to mean a two-dimensional visualisation, including illustrations, photos, patterns and text matter.
The free circumference of each leaf can be defined by one or more than one free edge. At the free edge, the leaves of the book block are not mutually connected and the book block can be browsed. The free circumference of each of the leaves preferably comprises a head edge, a front edge opposite the spine side and a tail edge, that jointly define a head side, a front side and a tail side, respectively, of the edge. Head and tail herein refer as usual to upper and lower end of the book block as it is held by a reader in reading direction.
The partial images can be arranged at at least one of the head edges, the front edges and the tail edges of the multiple leaves, whereby the image is formed at at least one of the head side, the front side and the tail side of the edge. The image can extend over multiple sides of the edge or over only a part of one of the sides of the edge.
Preferably the partial images are arranged at subsequent leaves of the book block. However, it is also possible not to provide leaves of the book block with partial images, for example in a certain pattern in conjunction with the leaves that are provided with partial images to give the image a special effect.
The partial images can connect to each other to form the image as one connected whole in at least a closed state of the book block. The closed state of the book block refers to the state in which the book block is unopened and all leaves of the book block are in contact at the free circumference. The edge is continuous in this case. In contrast, the free circumferences are not all in contact any more in an opened state of the book block. The edge is then laid open. In a fully opened state of the book block, it for example lies opened on a flat surface and an angle of 180° arises between the first and the last leaf of the book block.
Preferably, the partial images are cut-outs of the image. That is to say that the partial images are cut-out parts of the image as it is reproduced at the edge of the book block by the joint partial images, as seen perpendicular on the edge in the closed state of the book block.
For the sake of clarity, use will also be made of the term source image in this context, which refers to the image that is reproduced at the edge of the book block by the joint partial images. The partial images are, preferably partly overlapping or adjacent, cutouts of a source image that is reproduced as the image at the edge of the book block by the joint partial image, as seen perpendicular on the edge in the closed state of the book block.
The partial images can be deformed cut-outs of the image. These deformed cutouts are preferably configured to reproduce the image undeformed at the edge in the closed state of the book block. Additionally or alternatively, the deformed cut-outs of the image can be elongated in a direction transverse to the edge. This variant is particularly advantageous for an image at the front side of the edge, where the leaves in an opened state of the book block slide off from each other. The image can even be presented fully undeformed in this manner.
In other words, the source image undergoes an elongation in a direction which corresponds to a direction transverse to the edge when the image is arranged at the edge, which elongation in the deformation of the cut-outs is taken into account and is thus visible in the separate partial images. However, the deformation is at least partially, and preferably fully, compensated in the image formed by the joint partial images at the edge, at least as seen perpendicular on the edge in the closed state of the book block.
The deformation, in particular the elongation transverse to the edge, moreover aids in also presenting the image well when the book block is partially or completely laid open.
Preferably, subsequent cut-outs of the image and the leaves provided with the partial images exhibit a corresponding order. The image is thereby correctly reproduced at the edge, without disturbances or exchanges of the cut-outs.
The partial images preferably extend inward from the free circumference over the front- and/or rear-page face of the respective leaf over a length which is selected such that subsequent partial images are connected to each other in an opened state of the book block, in particular in the fully opened state of the book block. The connecting of the partial images can involve contact and/or overlap.
The extending of the partial images over the page face is thus preferably at least as large as the inward length from the free circumference that the leaves slide over each other during the opening of the book block from the closed state.
A length of 5 mm in a book block of a common format, such as A5, quarto or octavo, is often sufficient in this case. This length is preferably at least 2 mm, more preferably at least 4 mm, as measured perpendicular from the free circumference inwardly over the page face.
Preferably, the partial images extend to at most the whole margin of the front- and/or rear-page face. The margin of the page face is to be distinguished from the type area of the page face within which text and/or illustrations of the book block is or can be arranged, for example by means of a printing process. In particular when a pre-printed book block is provided with an image at the edge, it is advantageous to have the partial images run no further than the margin of the front- and/or rear-page face of the leaves of the book block so that text and/or illustrations already present are maintained.
The multiple leaves at the free circumference at which the partial images are arranged can be folded back inwardly on themselves. The partial image then runs from and preferably also over the free circumference of the leaf. This enables the use of pre- printed partial images on the multiple leaves. Further, the leaf hereby exhibits a double leaf thickness near the folded free edge, whereby the book block opens up to a certain degree at the edge, even in the closed state wherein the circumferences are in contact. A part of the partial images that extends over the page faces is hereby made at least partially visible, even in the closed state of the book block.
This folding back of the leaf onto itself can be partial, for example within the margin of the page face, or completely to the spine side so that both far ends of the leaf can be connected in the book block at the spine side. Preferably, the leaves are folded at the front side of the edge. In other words, the multiple leaves can be folded back onto themselves completely, wherein the folded edges are connected together at the spine side and form a spine of the book block.
When the multiple leaves are substantially completely folded double with a fold at the free circumference, the folded edges of such leaves are preferably connect together at the spine side. In this case there is no thickening at the free circumference of the leaves. The book block then stays flat in the closed state as is traditionally customary, in contrast to leaves which are only partially folded back at the circumference whereby the book block at the edge fans out relative to the spine.
As alternative or in addition to the folding of the leaves, the partial images can be arranged on the multiple leaves via a folded sheet arranged around at least a part of the free circumference. The image can then be arranged at the edge of an existing book or book block by means of separate sheet onto which the partial images are arranged. The sheet also involves a thickening of the circumference, so that the book block can fan out from the spine towards the edge, also in closed state, wherein the free circumferences of the leaves still touch each other via the sheets arranged thereon.
The book block in any form of the invention can also be part of a book which, in addition to one or more than one book block, also comprises a cover. The cover can be provided with a further partial image, a supplemental part of the image or a variant of the image.
The invention also provides a method of manufacturing a book block with an image at an edge thereof. This method comprises the step of arranging partial images at a free circumference of multiple leaves of the book block in such a way that the partial image extends inward from the free circumference over a front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form the image at the edge The method preferably comprises the step of generating the partial images based on the image. In other words, the partial images can be generated on the basis of a source image that is to be reproduced as the image at the edge.
Preferably, the method comprises generating the partial images as cut-outs of the image, or cut-outs of the source image. The cut-outs can be deformed cut-outs of the source image.
Preferably, the deformed cut-out are generated in such a way that these, as the joint partial images after being arranged at the book block, reproduce the image undeformed at the edge in the closed state of the book block.
The deforming preferably comprises elongating the image and/or the cut-outs of the image in a direction transverse to the edge to obtain the partial images as deformed cut-outs.
The method preferably comprises deforming the image and/or the cut-outs of the image to obtain the partial images in dependency of at least one of:
- the size of the edge relative to the undeformed image,
- the number of leaves at which partial images are arranged,
- the thickness of these leaves and
- the length over which the partial images extend inward from the free circumference of each leaf over the front- and/or rear-page face.
The size of the edge can comprise a width and/or length or a ratio thereof.
An example of the deformation is as follows.
A chosen source image is elongated in width according to a chosen number of leaves onto which the partial images, yet to be generated, will be arranged. For each of the leaves a certain width is computed, which is determined based on the thickness of the leaves and the desired length over which the partial images are to extend from the free circumference inward over the front- and/or rear-page face. A width in the range of 4-50 mm, in particular 1 cm, per partial image has proven to work well in practice for multiple book formats.
In addition, the length of the partial images is determined according to a desired length of the image along the edge, as measured in a direction along the course of the free circumference. The source image is then deformed to the desired length and width. Nest, subsequent cut-outs are generated from the deformed source image which are each arranged on one of the chosen leaves, preferably in an order corresponding to that of the cut-outs. Despite the deformation of the source image, the image at the edge faithfully reproduces the source image, also when the book block is somewhat opened. The partial images generated as cut-outs of the image can be arranged in an order corresponding to that of the cut-outs.
The method can further comprise determining a length over which the partial images extend inward from the free circumference over the front- and/or rear-page face of the respective leaf.
Preferably, the length chosen such that at least one of the following requirements is met:
- subsequent partial images are connected to each other in an opened state of the book block;
- the partial images extend to at most the whole margin of the front- and/or rear-page face;
- the length is at least 2 mm, preferably at least 4 mm.
The method can further comprise arranging the partial images on the multiple leaves and subsequently folding the multiple leaves back on themselves at the free circumference on which the partial images are arranged to arrange the partial images in such a way that that these extend inward from the free circumference over the front- and/or rear-page face of the respective leaf. This process makes is possible to first print the partial images on flat, unbundled leaves to thereafter fold these, with optionally in between or thereafter a step of connecting the leaves at the spine side to form a book block of it. In this case, the printing can be skipped, for example when the partial images are only arranged after the folding.
The multiple leaves onto which the partial images are to be arranged can be folded back completely on themselves and the folded edges can be connected at a spine of the book block. The same can be done with all leaves of the book block.
It is further possible in the method to arrange the partial images via a sheet on the multiple leaves. For example, paper van be used for this sheet, preferably of a foldable and wear-resistant quality.
The method in any disclosed embodiment can comprise manufacturing a book block or a book as these are disclosed herein.
The invention is further elucidated with reference to some figures:
FIG. 1 -8 show a method of manufacturing a book block with an image at the edge conform the invention;
FIG. 9-12 show a variant of arranging a partial image on a leaf for a book block wherein the leaf is folded at the free circumference; FIG. 13-15 show a further variant of arranging a partial image on a leaf for a book block wherein the leaf is completely folded.
The following reference signs are used:
1 source image / image
11 deformed source image
2 partial image
22 cut-out
3 sheet
4 leaf
41 spine side
42 free circumference
43 free edge
44 head edge
45 front edge
46 tail edge
47 front- or rear-page face
5 book block
51 spine
53 edge
54 head side
55 front side
56 tail side
59 direction transverse to edge
6 book
7 cover
8 fold line
BO width
B1 deformed width
L0 length
L1 deformed length
FIG.1 shows an image or source image 1 that is to be reproduced at the edge 53 of a book block 5 (see FIG. 8). The source image 1 has a width BO and a length LO.
FIG. 2 shows the source image 1 after deformation to a width B1 and a length L1 , which can be determined based on the size of the edge 53 onto which the image 1 has to be arranged and other requirements or factors, for example such as described here- above. The source image 1 can thus be deformed into a deformed source image 11.
FIG. 3 shows the deformed source image 11 that is divided into multiple partial images 2. The partial images 2 are shown adjacent to each other here, so that the whole image 1 is comprised by the joint partial images 2. Alternatively, the partial images 2 can also exhibit an overlap in the source image 1 , with or without being deformed.
FIG. 4 shows the partial images 2 as cut-outs 22 of the deformed source image 11 . Each cut-out 22 is shown here with a fold line 8, illustrated by a broken line.
In FIG. 1 -4, the source image 1 , the deformed source image 11 , the partial images 2 and the cut-outs 22 are shown as physical objects. However, these and other steps can also relate to digital objects and digital processing.
FIG. 5 shows a single cut-out 22 with a single partial image 2 which is folded over its fold line 8. This process can for example be performed with a sheet 3 onto which the partial image 2 of the image 1 is arranged. The fold line 8 is indicated here in the middle of the partial image 2 formed as cut-out 22, but the fold line 8 can also be positioned off- centre.
FIG. 6 shows the sheet 3 of FIG. 5 arranged on a leaf 4 for a book block 5. The sheet 3 with the partial image 2 thereon extends over the free circumference 42 of the leaf 4, in particular over a front edge 45 thereof, and over the page face 47 of the leaf 4.
FIG. 7 shows a book block 5 that comprises multiple leaves 4 that are each provided with a sheet 3 with a partial image 2 thereon (see also FIG. 6). This concerns a view on the tail side 56 of the edge 53 of the book block 5. In other embodiments of the invention, not all leaves of the book block 5 are provided with a partial image 2.
FIG. 8 shows the same book as in FIG. 7 in a perspective view. The image 1 is positioned at the edge 51 of the book block 5 and is a rendition or reproduction of the source image 1 as shown in FIG. 1 . It is also clear here that the partial images 2 extend over the front- and rear-page face 47 of the leaves 4, whereby the image is also visible from an oblique perspective, even when the book block 5 is in an opened state.
As the sheet 3 is arranged around the free circumference 42 of the leaves 4, a thickening is present at the edge so that the book block 5 fans out in a certain measure from the spine 51 towards the edge 53. The book block 5 stands stably because of this to present the image 1 in an elegant way.
In FIG. 7 and 8, the book block 5 is comprised in a book 6 which further comprises a cover 7.
FIG. 1-8 shown an embodiment of the invention in which the partial images 2 are arranged on a separate sheet 3 before these are fixed at the free circumference 42 of multiple leaves 4 of the book block 5. The sheets 3 can also be omitted, wherein the partial images 2 are arranged directly on the leaves 4, for example by means of a graphical process. FIG. 9-15 show such variants.
FIG. 9 shows a leaf 4 with a partial image 2 at the free circumference 42 thereof which is preferably directly arranged on the leaf 4.
FIG. 10 shows the leaf 4 of FIG. 9 with a fold line 8 at the free circumference of the leaf 4. In this example, the fold line 8 runs through the partial image 2. The leaf 4 is folded back onto itself about this fold line 8.
FIG. 11 shows the result of the folding step of FIG. 10. The partial image 2 extends from a front-page face 47 of the leaf 4 over the now folded free circumference 42 of the leaf 4 to the rear-page face 47 of the leaf 4. Alternatively, the partial image 2 can extend over only one of the front- and arear-page face 47.
FIG. 12 shows a detailed view of FIG. 11 of the folded free circumference 42 of the leaf 4.
FIG. 13 shows, similar to FIG. 9, a leaf 4 with a partial image 2 arranged thereon. A fold line 8 runs in the middle of the leaf 4 over which the leaf 4 is to be folded double or in half.
FIG. 14 shows the doubly folded leaf 4 with the partial image 2 at the free circumference 42 of the leaf 4. In this example, the partial image 2 is arranged at the front edge 45 of the leaf 4 and extends from this front edge 45 over the front- and rear-page face 47 of the leaf 4. As is also clearly visible in FIG. 6, 12 and 15, the partial image 2 can extend over both the front- as well as rear-page face 47 via the free circumference 42 of the respective leaf 4. The partial image 2 then runs continuously from the front-page face 47, over the free circumference 42 to the rear-page face 47.
FIG. 15 shows a detailed view of FIG. 14 of the front edge 45 of the leaf 4 folded in half. This double-folded leaf 4 can be bound with multiple, similar leaves 4 into a book block 5 that comprises an image 2 at the edge 53. In this embodiment, the book block 5 can be closed flush as conventional book blocks without the edge fanning out as in FIG. 7 and 8.
The embodiment of FIG. 1-8 with the sheet 3 can be combined with the embodiments of FIG. 9-15.
The figures show methods that can be performed manually. Machine steps are also possible, in particular when manufacturing the image 1 , 11 and the partial images 2 and when performing the folding steps with technology known in the fields of book printing and book binding. The method of FIG. 1-8 is especially suitable for manual production of the book block 5 while the methods of FIG. 9-15 are also suitable for production by machine in addition to a manual implementation and moreover do not require a separate sheet 3 to arrange the partial images 2 on the leaves 4. The invention can thus be practised in many ways.

Claims

Claims
1 . Book block, comprising :
- leaves that are mutually connected at a spine side and each further comprise a free circumference, wherein the spine side and the free circumference enclose a front- and rear-page face of each leaf;
- an edge that is defined by the free circumference of the leaves;
- wherein multiple leaves are provided with a partial image that is arranged at the free circumference and extends inward therefrom over the front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form an image at the edge.
2. Book block according to claim 1 , wherein the free circumference of each leaf is defined by one or more than one free edge.
3. Book block according to claim 1 or 2, wherein the free circumference of each of the leaves comprises a head edge, a front edge opposite the spine side and a tail edge that jointly define a head side, a front side and a tail side, respectively, of the edge.
4. Book block according to claim 3, wherein the partial images are arranged at at least one of the head edges, the front edges and the tail edges of the multiple leaves, whereby the image is formed at at least one of the head side, the front side and the tail side of the edge.
5. Book block according to one or more than one preceding claim, wherein the partial images are arranged at subsequent leaves of the book block.
6. Book block according to one or more than one preceding claim, wherein the partial images connect to each other to form the image as one connected whole in at least a closed state of the book block in which all leaves of the book block are in contact at the free circumference and the image is visible at the edge.
7. Book block according to one or more than one preceding claim, wherein the partial images are cut-outs of the image.
8. Book block according to one or more than one preceding claim, wherein the partial images are deformed cut-outs of the image.
9. Book block according to claim 8, wherein the deformed cut-outs are configured to reproduce the image undeformed at the edge in the closed state of the book block.
10. Book block according to claim 8 or 9, wherein the deformed cut-outs of the image are elongated in a direction transverse to the edge
11 . Book block according to one or more than one of the claims 8-10, wherein subsequent cut-outs of the image and the leaves provided with the partial images exhibit a corresponding order.
12. Book block according to one or more than one preceding claim, wherein the partial images extend inward from the free circumference over the front- and/or rear-page face of the respective leaf over a length which is selected such that subsequent partial images are connected to each other in an opened state of the book block.
13. Book block according to one or more than one preceding claim, wherein the partial images extend to at most the whole margin of the front- and/or rear-page face.
14. Book block according to one or more than one preceding claim, wherein the multiple leaves are inwardly folded back on themselves at the free circumference at which the partial images are arranged.
15. Book block according to one or more than one preceding claim, wherein the multiple leaves are folded double substantially completely with a fold at the free circumference.
16. Book block according to one or more than one preceding claim, wherein the partial images are arranged on the multiple leaves via a sheet which is folded around at least a portion of the free circumference.
17. Book block according to one or more than one preceding claim, wherein the partial images of the multiple leaves extend over both the front- and rear-page face via the free circumference.
18. Book comprising a cover and a book block according to one of the preceding claims.
19. Book according to the preceding claim, wherein the cover is provided with a further partial image, a supplemental part of the image or a variant of the image.
20. Method of manufacturing a book block with an image at an edge thereof, comprising the step of arranging partial images at a free circumference of multiple leaves of the book block in such a way that the partial image extends inward from the free circumference over a front- and/or rear-page face of the respective leaf, wherein the partial images of the multiple leaves jointly form the image at the edge.
21 . Method according to claim 20, comprising the step of generating the partial images based on the image.
22. Method according to claim 20 or 21 , comprising generating the partial images as cut-outs of the image.
23. Method according to one or more than one of the claims 20-22, comprising generating the partial images as deformed cut-outs of the image.
24. Method according to claim 23, comprising generating the deformed cut-outs in such a way that these, as the joint partial images after being arranged at the book block, reproduce the image undeformed at the edge in the closed state of the book block.
25. Method according to claim 23 or 24, comprising elongating the image and/or the cut-outs of the image in a direction transverse to the edge to obtain the partial images as deformed cut-outs.
26. Method according to one or more than one of the claims 23-25, comprising deforming the image and/or the cut-outs of the image to obtain the partial images in dependency of at least one of the size of the edge relative to the undeformed image, the number of leaves at which partial images are arranged, the thickness of these leaves and the length over which the partial images extend inward from the free circumference of each leaf over the front- and/or rear-page face.
27. Method according to one or more than one of the claims 22-26, wherein the partial images generated as cut-outs of the image are arranged at the multiple leaves in an order corresponding to that of the cut-outs.
28. Method according to one or more than one of the claims 20-27, comprising determining a length over which the partial images extend inward from the free circumference over the front- and/or rear-page face of the respective leaf.
29. Method of claim 28, wherein the length is determined such that at least one of the following requirements is met:
- subsequent partial images are connected to each other in an opened state of the book block;
- the partial images extend to at most the whole margin of the front- and/or rear-page face;
- the length is at least 2 mm, preferably at least 4 mm.
30. Method of one or more than one of the claims 20-29, comprising arranging the partial images on the multiple leaves and subsequently folding the multiple leaves back on themselves at the free circumference on which the partial images are arranged to arrange the partial images in such a way that that these extend inward from the free circumference over the front- and/or rear-page face of the respective leaf.
31 . Method of claim 30, wherein the multiple leaves are completely folded back on themselves and the folded edges are connected at a spine of the book block.
32. Method of one or more than one of the claims 20-31 , wherein the partial images are arranged on the multiple leaves via a sheet.
33. Method according to one or more than one of the claims 20-32, wherein the partial images are arranged such that these extend over both the front- and rear-page face via the free circumference.
34. Method of one or more than one of the claims 20-33, wherein the method comprises manufacturing a book block according to one or more than one of the claims 1- 17 or a book according to claim 18 or 19.
PCT/NL2023/050195 2022-04-14 2023-04-14 Book block with edge image WO2023200339A1 (en)

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NL2031596A NL2031596B1 (en) 2022-04-14 2022-04-14 Book block with cutting image
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080012917A1 (en) * 2006-04-06 2008-01-17 Benard James J Method of printing an image on the side of publication
WO2014072778A1 (en) * 2012-11-07 2014-05-15 Unibind Limited Method for binding a bundle of leaves, a bundle of leaves, method and device for forming such a bundle of leaves
DE102019219192A1 (en) * 2019-12-09 2021-06-10 Richard Mayer, Buchbindermeister GmbH Process for creating a stack of papers held together with cut finishing and concealed printing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080012917A1 (en) * 2006-04-06 2008-01-17 Benard James J Method of printing an image on the side of publication
WO2014072778A1 (en) * 2012-11-07 2014-05-15 Unibind Limited Method for binding a bundle of leaves, a bundle of leaves, method and device for forming such a bundle of leaves
DE102019219192A1 (en) * 2019-12-09 2021-06-10 Richard Mayer, Buchbindermeister GmbH Process for creating a stack of papers held together with cut finishing and concealed printing

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