Consummation et_
`Affanres commerciales Canada
`Bureau des brevets
`
`Consumer and
`Corporate Affairs Canada
`Patent Office
`
`Ottawa, Canada
`'“A°C9
`
`5
`
`(51)
`
`INTL.CL. B42D-015/00
`
`(21)
`
`(A1)
`
`2,091,109
`
`(22)
`
`(43)
`
`1993/03/05
`
`1994/09/06
`
`
`
`V:6/o?rsso"se
`
`(19) (CA) APPLICATION FOR CANADIAN PATENT (12)
`
`(54) Security Document Having Secure Binding Means and Method
`of Making same
`
`(72) Irwin, Glen R.
`
`- Canada ;
`
`(73) Canadian Bank Note Company, Limited - Canada ;
`
`(57) 12 Claims
`
`Notice:
`
`This application in as filed and may therefore contain an
`incomplete specification.
`Ifil
`. a, a,
`
`CCA326I (1o92)41 7530-21-938-3254
`
`1/11
`
`DOJ EX. 1015
`
`
`Affanres commerciales Canada
`Bureau des brevets
`
`Consumer and
`Corporate Affairs Canada
`Patent Office
`
`Ottawa, Canada
`'“A°C9
`
`5
`
`(51)
`
`INTL.CL. B42D-015/00
`
`(21)
`
`(A1)
`
`2,091,109
`
`(22)
`
`(43)
`
`1993/03/05
`
`1994/09/06
`
`
`
`V:6/o?rsso"se
`
`(19) (CA) APPLICATION FOR CANADIAN PATENT (12)
`
`(54) Security Document Having Secure Binding Means and Method
`of Making same
`
`(72) Irwin, Glen R.
`
`- Canada ;
`
`(73) Canadian Bank Note Company, Limited - Canada ;
`
`(57) 12 Claims
`
`Notice:
`
`This application in as filed and may therefore contain an
`incomplete specification.
`Ifil
`. a, a,
`
`CCA326I (1o92)41 7530-21-938-3254
`
`1/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`ABS'l'RAC'l'
`
`A security document, such as a passport, is provided
`
`with secure binding means to prevent unravelling or other form
`
`of manual removal of the binding thread. The document is
`
`thereby secured against tampering in the form of page
`
`removal/replacement. The security document comprises a
`
`plurality of sheets held together by means of stitching, the
`
`stitching comprised of successive loops of thread. At least
`
`portions of the thread of a plurality of the loops is fusible
`
`and those portions are subject to becoming, or have been,
`
`fused by application of heat. When the thread is fused it is
`
`secure and is not subject to becoming unravelled.
`
`.·;.
`
`,· .. ·
`': ..
`
`.
`
`2/11
`
`DOJ EX. 1015
`
`
`
`SECURITY DOCUMENT HAVING SECURE BINDING MEANS
`
`AND METHOD OF MAKING SAME
`
`2091109
`
`Field of the Invention
`
`This invention relates to security documents, such as
`
`passports, and in particular to the binding means used to hold
`
`in place the pages of the document.
`
`In accordance with the
`
`invention the binding means provides security to the document to
`
`protect it against tampering.
`
`Background
`
`Security documents such as passports often take the
`
`form of a booklet consisting of a number of inner pages, to which
`
`visas may be applied,
`
`and an identity page containing the
`
`bearer's personal details and photograph. Typically the identity
`
`page is covered by a transparent laminate sheet to protect and
`
`secure the data on the sheet.
`
`However, such lamination of the identity sheet does not
`
`provide full security to the document because it is possible to
`
`unravel or otherwise manually remove the stitched binding of the
`
`passport,
`
`remove the identity sheet and replace it with another
`
`and then restitch the pages of the passport back together again.
`
`This is because the preferred method of manufacturing such a
`
`security document is to assemble the individual preprinted inner
`
`pages and laminate sheet,
`
`and then sew them together with a
`
`cotton or synthetic thread.
`
`A reinforcing tape over the top
`
`page, along the stitching line,
`
`is sometimes also sewn in to
`
`prevent the stitches from tearing the pages.
`
`AA durable cover is
`
`then bonded to the outer pages and the entire assembly is trimmed
`
`3/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`or diecut to the desired final size. The several steps‘of this
`
`manufacturing method are, in practice, combined into a continuous
`
`manufacturing process.
`
`In the case of a passport, a number of means have been
`
`used to maintain the integrity of the stitching over the life of
`
`the passport which may be up to 10 years,
`
`including the use of
`
`complicated stitching techniques and the application of adhesives
`
`to the thread immediately after sewing. However, such methods
`
`increase the manufacturing time and cost significantly.
`
`It is
`
`therefore advantageous to provide a simple means of binding
`
`security documents,
`
`in a
`
`secure manner,
`
`according to the
`
`invention claimed herein.
`
`summary of the Invention
`
`In accordance with the invention there is provided a
`
`security document comprising a plurality of sheets held together
`
`by means of stitching. The stitching is comprised of successive
`
`loops of thread wherein at least portions of the thread of a
`
`plurality of the loops is fusible and those portions may be or
`
`have been fused to prevent unravelling or other form of manual
`
`removal of the stitching.
`
`Preferably the stitching is chain
`
`stitching and each loop thereof is comprised of two threads, at
`
`least one of which is fusible, and portions of the two threads
`
`are fused together.
`
`I
`
`The invention further provides a method of making a
`
`security document comprised of a plurality of sheets, the method
`
`comprising the step of stitching the sheets together using at
`
`least one fusible thread whereby at least portions of the thread
`
`may be caused to fuse on the application of heat to the thread
`
`4/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`and thereby prevent unravelling or other form of manual*removal
`
`of the stitched thread.
`
`Description of the Drawings
`
`Figure l is a schematic illustration of the assembly
`
`and stitching of a security document
`invention.
`
`in accordance with the
`
`Figure 2 is a plan view of chain stitching showing the
`
`arrangement of the two threads used therefor.
`
`Figure 3 is a plan view of lock stitching showing the
`
`arrangement of the two threads used therefor.
`
`Figure 4 is a schematic illustration of the folding of
`
`a security document following the stitching step illustrated by
`
`Figure 1.
`
`Figure 5 is a schematic illustration of a security
`
`document, of
`
`the type shown in Figure 4, passing through a
`
`laminating machine.
`
`Detailed Description of the Invention
`
`Figure 1 illustrates the assembly and stitching of a
`
`security document 5,
`
`being a passport
`
`in the embodiment
`
`illustrated. The components of the security document, comprising
`
`a plurality of sheets 40,50, are collated in the conventional
`
`manner in preparation for the binding process. The sheets of the
`
`passport
`
`shown include preprinted sheets 40
`
`and a pressure
`
`sensitive or heat activated laminate sheet 50.
`
`A Singer 300 W101
`
`(trade—mark)
`
`sewing machine (not
`
`shown)
`
`is fitted with a guiding mechanism to permit accurate
`
`placement of the needle 10 and stitching 30 relative to the edge
`
`of the sheets 40,50.
`
`To bind the sheets together the sewing
`
`5/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`method known as saddle sewing is used in which the needle 10 is
`
`passed through the center of the sheets 40,50 which will become
`
`the spine 70 of the finished document 5 as shown by Figure 4.
`
`A reinforcing tape 60 is, preferably, also stitched along the
`
`spine 70 and may be positioned to the spine area prior to
`
`stitching by using an adhesive (e.g. an adhesive-backed tapei.
`
`By using a reinforcing tape 60 accordingly the stitching 30 is
`
`less likely to tear the sheets 40. The needle 10 is loaded with
`
`a fusible thread. Thread supplied by Coates and sold under the
`
`trade-mark Stitch and Fuse, having a melt temperature of 173°F,
`
`is used by the inventor. The looper, if chain stitching is used,
`
`may also contain the same or a dissimilar thread. Similarly, if
`
`lock stitching is used the bobbin thread may also contain the
`
`same fusible thread or,
`
`instead, a dissimilar thread.
`
`For a
`
`dissimilar thread cotton, polyester, polypropylene, non-fusible
`
`nylon or a blend thereof may be selected.
`
`Figure 2
`
`illustrates the configuration of the chain
`
`stitch and Figure 3 illustrates the configuration of the lock
`
`stitch.
`
`The chain stitch method is usually preferred for use
`
`because the looper can be fed from a lengthy supply of thread to
`
`match that of.
`
`the needle thread whereas
`
`the bobbin thread
`
`required for lock stitching holds only a shorter, more limited
`
`supply of thread. Thus,
`
`the bobbin must be filled with thread
`
`more frequently than the needle thread in the case of
`
`lock
`
`stitching. As shown by Figure 2, the looper thread 15 and needle
`
`thread 10 form a connected series of loops.
`
`From the top side
`
`22 of the document adjacent
`
`the tape 60 both the looper and
`
`needle threads 15,10 are visible.
`
`From the bottom side 28 of the
`
`6/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`document only the needle thread 10 is visible. Alternatively
`
`lock stitching,
`
`in which the needle thread 10 and the bobbin
`
`thread 18 form a series of linked loops, may be employed.
`
`The collated sheets 40,50 are continuously loaded into
`
`the sewing machine
`
`and collectively sewn according to the
`
`foregoing. The sheets 40,50 are cut to the size desired for the
`
`intended security document. Following the sewing step sufficient
`
`heat is applied to the thread 10 to melt and fuse it. This is
`
`done by the inventor by means of directing a jet of hot air, at
`
`375°F,
`
`from a hot air gun such as a Leister 801-3000 (trade-mark)
`
`at the stitched threads for a period of 2.5 seconds per book to
`
`ensure the thread is fused.
`
`The air temperature used can be
`
`altered, as necessary for the application,
`
`to suit production
`
`requirements.
`
`A durable cover (not shown) may then be applied
`
`to the cut sheets and the passport document 5 finished by folding
`
`the sheets 40,50 and cover along the spine 30 as shown by Figure
`4.
`
`The heat fusing of the thread 10 causes the thread
`
`fibers of the heated portions of the thread 10 to melt into a
`
`homogeneous mass causing them to adhere to the adjacent thread,
`
`being in the case of chain stitching the looper thread 15, and
`
`in the case of lock stitching the bobbin thread 18. This then
`
`results in an irreversible closing of the affected thread loops
`
`of the stitching and prevents unravelling or other form of manual
`removal of the stitching.
`The fusing of the thread 10 also
`
`provides the advantage that the usual need for backstitching, to
`
`prevent unravelling of the stitching at the ends of the document,
`
`is no longer necessary since the fusing itself prevents such.
`
`7/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`Alternatively, particularly in the making of passport
`
`documents, fusing of the thread may, advantageously, be left for
`
`completion at the time the passport is issued and the laminate
`
`sheet 50 is heat fused 90 to its adjacent printed sheet 40 by
`
`means of a laminator 80 as shown in Figure 5. This would avoid
`
`duplication of the required step of heating the sewn sheets to
`
`fuse the thread.
`
`(This assumes that a heat activated laminate
`
`sheet 50 is used, for example the laminate material manufactured
`
`by Transilwrap Company
`
`and provided under
`
`the trade-mark
`
`Transkote.) The laminate sheet 50 of passport documents is fused
`
`to the adjacent personal data sheet 40 only after the data sheet
`
`40 is completed with the passport holder's personal particulars
`
`just prior to issuance of
`
`the passport
`
`to the holder.
`
`A
`
`laminator such as the General Binding Corporation 1000 P.L.A.
`
`(trade-mark) , set
`
`to an external
`
`temperature of 180°F, will
`
`simultaneously laminate the sheets 40,50 and fuse the thread to
`
`secure the binding of the security document.
`
`8/11
`
`DOJ EX. 1015
`
`
`
`What is Claimed is:
`
`2091109
`
`1.
`
`A security document comprising a plurality of sheets
`
`held together by means of stitching, said stitching comprised of
`
`successive loops of thread wherein at least portions of said
`
`thread of a plurality of said loops is fusible and said portions
`
`are subject to becoming, or have been,
`
`fused by application of
`
`heat
`
`thereto to prevent unravelling or other form of manual
`
`removal of said stitching.
`
`2.
`
`A security document according to claim 1 wherein each
`
`said loop is comprised of two threads, at least one of which is
`
`fusible, and portions of said two threads are fused together.
`
`3.
`
`A security document according to claim 2 wherein one
`
`of said threads is comprised of a heat meltable nylon and the
`
`second of said threads is comprised of a dissimilar material
`
`selected from the group consisting of cotton, polyester,
`
`polypropylene, non-fusible nylon and blends thereof.
`
`4.
`
`A security document according to claim 2 wherein said
`
`fusible thread is a monofilament.
`
`5.
`
`A security document according to claim 2 wherein said
`
`stitching is chain stitching.
`
`6.
`
`A security document according to claim 2 wherein said
`
`stitching is lack stitching.
`
`7.,
`_
`A method of making a security document comprised of a
`plurality of sheets, said method comprising the step of stitching
`
`said sheets together using at least one fusible thread whereby
`
`at least portions of the thread may be caused to fuse on the
`
`application of heat
`
`to said thread and
`
`thereby prevent
`
`unravelling or other form of manual
`
`removal of said stitched
`
`9/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`8.
`
`A method of making a security document according to
`
`claim 7 including the step of applying sufficient heat to said
`
`thread to cause said thread to fuse.
`
`9.
`
`A method of making a security document according to
`
`claim:
`
`8 whereby said stitching is performed by means chain
`
`stitching.
`
`10.
`
`A method of making a security document according to
`
`claim 8 whereby said stitching is performed by means of lock
`
`stitching.
`
`11.
`
`A method of making a security document according to
`
`claim 8 whereby one of said threads is comprised of a heat
`
`meltable nylon and the second of said threads is comprised of a
`
`dissimi1ar'materia1 selected from the group consisting of cotton,
`
`polyester, polypropylene, non-fusible nylon and blends thereof.
`
`12.
`
`A method of making a security document according to
`
`claim 7 wherein said fusible thread is a monofilament.
`
`BARRIGAR & OYEN
`81 Metcalfe St., 7th Floor
`Ottawa, Ontario
`K1P 6K7
`
`Agents for the Applicant
`Y
`
`10/11
`
`DOJ EX. 1015
`
`
`
`2091109
`
`i3
`Agents .0: the Ap
`
`canf
`
`11/11
`
`DOJ EX. 1015
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