CA2258575A1 - Laminated sheet and process for manufacture of a laminated sheet - Google Patents
Laminated sheet and process for manufacture of a laminated sheet Download PDFInfo
- Publication number
- CA2258575A1 CA2258575A1 CA002258575A CA2258575A CA2258575A1 CA 2258575 A1 CA2258575 A1 CA 2258575A1 CA 002258575 A CA002258575 A CA 002258575A CA 2258575 A CA2258575 A CA 2258575A CA 2258575 A1 CA2258575 A1 CA 2258575A1
- Authority
- CA
- Canada
- Prior art keywords
- metal foil
- image
- sheet
- paper
- laminated sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/12—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/24—Inking and printing with a printer's forme combined with embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
Abstract
A process for manufacturing a laminated sheet is disclosed. The first step of the process comprises adhering together a sheet of metal foil (3) and a sheet of paper (4). Thereafter, the process comprises printing an image on an outer surface of the paper (4) or embossing the image on the metal foil (3). Where the image is first printed on the paper (4), the process further comprises the step of embossing a mirror of the image on the metal foil (3) in registration with the printed image. Alternatively, where the image is first embossed on the metal foil (3), the method further comprises printing a mirror of the image on the outer surface of the paper (4) in registration with the embossed image on the metal foil (3).
Description
CA 022~8~7~ 1998-ll-2~
wo 97/45266 PCTISG96100005 T~ ~te~l ~eet a~ ~ 9 ~or ~nu~acture O r a am~ ~te ~ sheet .
q!h~ ~r~~~nt-, i~v~ on ~ te8 to a lam;~t~A
~e~ and to a ~oce~ for ~P~ aturi~g the ~ te~l 5 sheet.
ln Dart~ tbo ~ro~e~t in~n~on r--1~t~~ to a lam;~at~d ~heet co~r~ he-t~ oi~ m~tal ~oil anl pa~er ~rlA a ~ ~8 for ma~f~,~ t ~A ~h~et .
Lam; n~t~ ~heets, such a~ tho~e made o~ ~heets of 10 meta~ roil as~ll S~a~er, carL be u~ed for a ~ariety of fu~ct$oD~ inc~ ~Sr wrappln~ or ~a~ , ConBUmer ltems, BU~h a~ con~ect~ ~y, are ofte~ wra~ped indi~idually or in ~un~le~ in lam~nsted ~heets, P~A cigar~ttes and cigars are c~ten ~ol~ ln tl~ or boxe~ ha~ing laminsted s~oets a~ a liner. ~am;nA.6~ ~eet~ are ~art~ov~ly u~e~ul a~ l$ner~
hec~ae t~e metal ~oil Çormu a b~rrler to light and ~ lstur~ whic~ could degrade the toh~o~
~ amlDated ~h~;e~ are o~te~ ~rinted or em~o~e~
wlth ~ma~es" ~uch as trade marks, logos or com~any n~mes 2D o~ manu~acturer~ or distr;~to-~, or other in~ormation ~n order to ~n~ e the ~re~ tio~ o~ ~00~8 wrap~ed or D~ in the lam~ t-.
T~ ~ener 1, l~m~ ~A~ h-~tB aro ~ri~ted cz emkQ~S9A o~ O~Q ~de only. ~t~ y~ thQ 'pa~er ~ intoa or the metal fo~ ~mbo~-d, but occa~io~ally ~ot~ the metal foil iJ ~ ted ~nd the~aDer i~ embo~8~d. Th~
~rint~ng an~ ~mhos~ is carried out by ~ 8eB ~-h~ ~
are w~ ~u. ln ~r;~t~ te-hnology, s~ch as roll to roll em~o~ n~ lnta~llo ~r;~
Whlle it ~ w~ m in thQ ~rlnt~ a~
WO 97/45266 PCT/SC~C~ OS
lndu~t~y to ~-G~e a l~ te~ ~eet comDrl~ an embo~s~a me~al foil ~ ~rintod ~aper, it has not h~therto ~een ksun~l to ~rovlde a lam~n~t3~ sheet on whlch t~e ~r~nt~ng a~d emboss~g ~re ~n reglstr~ ~, that i8, on 5 W~h there 1~ exact ¢G~ea~Y~ F of th~ ted an~
embo~eCI imag~J,.
An object o~ the ~ ~~t in~ent;o~ ie tO prO~ae a l~ate~ ~he-t com~ri~in~ ~l~te~ p~r and em~Q-~eA
m~tal ~o~l wherein the ~r~n~ng a~ embossin~ are in registration.
A further object of the ~re~e~t invention i~ to ~ro~de a ~e~-gJ for ma~uf~cturing such a l~mi~ated ~eet.
~ c~o~ to th~ ~re~en~ in~ens~o~ th~re 18 provi~eO, a ~ 8 ~or m.~n~r~tur~g a l a~;r~te~ ~ah~t 15 co~risa~g the Bte~s of:
(i) adherlDy to~ether a ~heet o~ m~tal foil an~ a ~heet of ~a~er;
(11) ~r~ an lmag~ on a~ ouser ~urface o~ the ~a~er, and (liil embo~i~g a mirror o~ t~e lma~ o~
t~e ~etal ~oll ~ n ros7io~ c~-~ w~ th - the Drinted ~m~go on the ~aDer.
Accordln~ to the ~r~ t ln~nt;o~ ~ere ~
~ ro~e~ a ~ _~e0 for manu$actur~ a l~m~Dat~d sheet com~risi~g the 8te~ o~:
(i) a~he~ng tog~th~r a ~heet o~ ~etal ~oll a~d a ~heet o~ ~a~r:
WO 97/45266 PCI'/SG9610000~i (1~) A~O~ a~; ge on thA metal ~0~15 a~
(i~i) ~r~t~Sr a ~irror o~ ~e tm~ge on t~e out~r ~ur~sae of ~ S~er $~
reSJi~r~t~ with t~ e~bo--~d i~age on the metal foil.
~ noted ~bove, tlle order of th~ pri~t~ ~
embOE~ Ite~ iB not ~r~ .liT, it l8 prererr~d t~at t~eembossing ~te~ e ~:he printing step.
It i~ y ~r--~--rrea 1~ h~ ~ro~
compri~R detectiDg the first formed of the ~ri~ted and o30ed ~mage~ a~d co~tro~ the ~ub~equent embo~ pr~n~g ~t~ to e~8ur~ reg~stratio~ of the auontly ~o-meA rrin~ bo~e~l $mage~.
~e ~te~ of adherina together the ~he~ t- of ~aper an~ metal ~o~1 m~y be carrled out by any ~ultabl~ method.
In a ~referrod e~bod~me~t, the metal ~oil i8 r~r~A over a coatln~ roller wh~ch ~~11eB adh~ e to o~e surface o~ the metal ~oil. q!he ~er a~d metal ~'oil are the~ pala~ed 20 betweer~ a ~alr o~ rolls whlch ~ses~ the ~aDer a~d the ed~ ~e co~e-~ e~ o~ t~e metal ~o~ l tosrether to ~osm th~ 1 ~ ~ t - ' ~}~et .
q~e ~bo~uJ Jte~ ~y be carried out by a~y ~u~ta~lo me~od. Tn o~ t~o!l o~ l~g, a WO~ 9~' 25 (~u~ aB a roll~r) ~d eDlboB~i~g die i~ loc~ on eit~er ~d~ o~ the l~m;r~ te~ ~heet a~ brousJht to~et~er Bo t~at the die ~o~ t- a~d ~boJ~e~ t~e f oll . 1~ ~other m~thod of embo8~ the ~ "e $B 8tat~r -ry ~nt~ the dle 18 moved u~ a~d aO~ ~r ~ut the met-1 ~oil of t~e l~;~ate~
30 Bheet. I~ ~tL~ metho~ of em~r;nq~, the ~ ece i~
mo~r~d ~g~ t t~e ~c of the l~ 8heet, t~
~re~i~ the m~tal ~o~l aaa~t the ~~ho~sl~ e.
It ~8 ~sefer~d S~t, the ~"~oc~ Ing ~te~ CoD~?ri~
~di~g the 1~ t '~ U~ the ~$~ o~ two roll~, w~th ~- soll a~tl~ a~ a ~ r~ 8~ belru ~on~d ~!rom a 5 relati~ely ~o~t ~Ser;.~l auch a~ r~ a~d the oth~r roll aat~ng a~ a ai-- ~ be~;r fon~CI ~rom met~ uc~ a~ steel.
~ e ~r:-~t;~ ~t~ ~y be carr~e~l out ~y ~;y ~uitablo Dlethod. For ~xa~le, the ~r~nt~ng ~te~ ~ay co~ri~e rell~ or lett~y~c3~ -yrinti~SJ, ~ -n~sJra~hlc 10 ~r~n~ r or ~ntagllo ~r~ uch as ~hotoçrra~r~ or roll to roll gra~rure.
The ~ h~t o~ t~e ~rel~ent in~rentlon mz~y ha~e l?hy~lcal characteri~t~cs a~pro~rlate for the ~te~eA
~3e. For exa~le, whore ~t 18 ~n~ e~ ~or wra~;n 15 co~fect~o~ery, the l~nate~ ~eet may ne~d to b~ ~re~
?~ ~ltorn:~t~ely, wh~re lt i~ ;nt~n~el3 to l~n~
c~garette boxes, it ~ l~e noces~ that the l~mlnated ~heet be relati~ly ~ 1 60 that it ca~ be ~o~e~ a~
ma ~ nt~ t~e ~ol~ .
D~fer~t ~ c~l cS~s~acterl~t~ C8 of t~e l~mi~ate~l ~ et ~ay be ~rov~ 5 ln l?art b~r c~oice o~
adh~slvla and the ~Ira~ ~d t~e o~ ~aper asuVor metal foil.
It ;8 ~r~Serr~d t~at t~e ~etal ~oil compr~se a metal cho~ oml the m~ s~rou~ Of the c~oriodic table.
t i8 ~r'c;~ rly pr-~-rsed t~t t~ ~tal roil co~?ri~e~ or co~l~t~ o~ a~
o~t~ y, t~e ~rocees of t~ ~r~s~t i~v~r~t:o~
co~risos colour~g th~ ~t~l foil. Prefer~ly, tho CA 022~8~7~ 1998-11-2~
colour~ ~te~ co~rise~ a roll to roll ~ra~ure ~r~
prOCeBEI i~ wh;~h the w~ surfac- O~ the metal ~o~l iB
colo~ed by bei~g ~ass~a across a~ l~lced ora~ure roll. ~rhe coloured i~k ae~os~ea on eh- metal foil by t~e ~ra~ruse 5 roll ~ay b~ driod by ~,-~g~ ths ~etal ~o~l through ~ hot air c~ber or the lik~.
ThQ ~L~-r't' i~ ~ ~t'~~'' 28 ~le~cribed furthor by way of~ exa~l~ wit_ re~ ~ca to thQ accom~anyirL~ ClraWings i~
~-h; C'~':
F~gure 1 ~B a ~cbe~atla dla~ o~ a ~r~f~rr~d bodiD~s~t o~ a y~ in ~o~A~n~e with the ~reses~t ~n~n~ or ~ tur~n~ 8 ~ref-rred ~ ~:?; vnt 0~ a ted ~heet i~ ~aor~a~e w$th the ~re~ent lnv~ntion;
Fi~uro 2(a) i~ a ~lan view of the metal ~oil surface o~ th- lami~ate~ she~t ~nu~actured by the proce~
shown in Fl~ure l;
Figure 2(b) 1~ a ~lan ~lew of the pa~er ~ur~ac~
of the l~ sted sh~et ma~u~actured by the process shown in ~igure l; and Flgure 3 i~ a cro-- sect~on o~ the 1 a~; ~ted 8hRet ~hown ~n F~ur-~ 2(~) a~d 2(b).
~n ~h~ ~C_~JJ ~oWn ~n Figure 1 metal foil (3 an~ er (4) are ~ed fr ~ se-~ecti~e reel~ (1) and ~2) an~
are ~a~ed th~0~h a ~erl-~ o~ work~t~n~Q at ~ h th~
met~l fo~l (3) an~ the ~a~er t4) arQ la~n-t-d toget~er, an ~m~e iR ~ri~ted on the ~p~r (4), and a ~mirror~ imag8 i8 embos~ea on the metal fo~l (3) .
.
Wlth re~e~e ~~ to Fl9Nre 1, the me~al ~oi~ t3), ty~c~ly ~il~er alum~n~um f~ Rrea from the reel CA 022~8~7~ lsss-ll-W097/4S266 PCT/SG9610HN~
tl) o~er a coating roll (5) which deposits ad~esive, ~re~erably as an even ~lm, o~er one surface o~ the metal foil (3).
~he metal ~oil (3) and pa~er (4) ~rom the reel l2) are then ~a~ed between two ~am~natin~ rolls (6a,6b) which press the adhe~ive coated ~urface of the metal foil (3) evenly A~A~t one surface o$ the paper (4) to ~orm a ;~Ated sheet.
The outer surface of the metal foil (3) of the l~min~ted sheet iB then coloured by transporting the lAm;n~ted sheet in contact with a gravure roll (7) which deposits a layer of coloured ink on ~he outer surface o~
metal foil (3).
The wet ink is dried by pa~sing the laminated sheet through a drying chA~her (8) in which hot air iR
circulated.
~ he lAm;~te~ sheet i~ then passed acro~ a gravure cylinder (9) which lea~e~ a printed image on the outer ~urface of the paper (4).
The wet ink on the paper i~ then dried by passing the l~ ;~A ted sheet throu~h another drying C~r ' _r (10).
The l A~ i~ted shQet is then passed to an embossing station which com~rises a wor~piece ~12a) and a die ~12b) ~Jh;ch embosses on the metal $oil (3) a ~mirror~
image of the printed image on the ~aper (4). A control as~embly which includes a sensor ~11) u~stream of the embossing workstation detect~ the ~rinted image on the ~a~er (4) and controls the process by any suitable means to ensure that the embossed "mirror" image on the metal foil (3) i8 in registration with the ~rinted image on the ~a~er (4) Substitute Sheet (Rule 26) CA 022~8~7~ 1998-ll-2~
W097/45266 PCT/SG96/00~5 Finally, the embossed and printed laminated sheet is fed onto a large reel ~13) for storage prior to the sheet being cut and spooled onto smaller reels.
Figure 2 (a) shows the outer surface of the metal foil (3) of a section of the laminated sheet manufactured by the process described above on which is embossed an image (15) which comprises an array o~ the word "tobacco". Figure 2 (b) shows the outer surface of the paper (4) of the section of the laminated sheet shown in Figure 2 (a). The outer surface of the paper is marked with a printed image (17) which comprises an array of the word "tobacco". The arrangement is such that there is correspondence in shape, size and position of the embossed and printed images.
Figure 3 (a) is an enlargement of a cross section of part of the laminated sheet shown in Figures 2 (a) and 2 (b) which shows the metal foil (3) and the paper (4) held together by a thin layer of adhesive (18).
The metal foil (3) has impressions (l9)where the embossing die has made contact and depressed the surface of the metal foil. As the e~bossing and printing are in registration, the paper has deposits of ink ~20) which correspond to the impressions (l9)in the metal foil (3).
Figure 3 (b) is an enlargement of a cross section of part of the laminated sheet shown in Figures 2 (a) and 2 (b) which shows the metal foil (3) and the paper (4) held together by a thin layer of adhesi~e (18).
The metal foil (3) has impressions (14) where the - embossing die has not made contact and depressed the surface of the metal foil. As the embossing and printing are in registration, the paper has deposits of ink (16) which correspond to the impressions (14) in the metal foil (3).
CA 022~8~7~ 1998-ll-2~
W097/4~266 pcTlsGs6mw~s It is noted that the particular image shown in Figures 2 (a) and 2 (b) is an arbitrary selection and that any suitable image may be embossed and printed on the laminated sheet.
It is also noted that the production of a laminated sheet having embossed and printed mirror images that are in registration is believed to be an important means of enabling purchasers of products, such as tobacco, to distinguish between the products of different traders.
In the tobacco industry, the principal benefit is in enabling detection of non-genuine cigarettes.
While the invention has been explained in relation to its preferred embodiments it is to be understood that various modifications thereof will become apparent to those skilled in the technology upon reading the specification.
~rB
wo 97/45266 PCTISG96100005 T~ ~te~l ~eet a~ ~ 9 ~or ~nu~acture O r a am~ ~te ~ sheet .
q!h~ ~r~~~nt-, i~v~ on ~ te8 to a lam;~t~A
~e~ and to a ~oce~ for ~P~ aturi~g the ~ te~l 5 sheet.
ln Dart~ tbo ~ro~e~t in~n~on r--1~t~~ to a lam;~at~d ~heet co~r~ he-t~ oi~ m~tal ~oil anl pa~er ~rlA a ~ ~8 for ma~f~,~ t ~A ~h~et .
Lam; n~t~ ~heets, such a~ tho~e made o~ ~heets of 10 meta~ roil as~ll S~a~er, carL be u~ed for a ~ariety of fu~ct$oD~ inc~ ~Sr wrappln~ or ~a~ , ConBUmer ltems, BU~h a~ con~ect~ ~y, are ofte~ wra~ped indi~idually or in ~un~le~ in lam~nsted ~heets, P~A cigar~ttes and cigars are c~ten ~ol~ ln tl~ or boxe~ ha~ing laminsted s~oets a~ a liner. ~am;nA.6~ ~eet~ are ~art~ov~ly u~e~ul a~ l$ner~
hec~ae t~e metal ~oil Çormu a b~rrler to light and ~ lstur~ whic~ could degrade the toh~o~
~ amlDated ~h~;e~ are o~te~ ~rinted or em~o~e~
wlth ~ma~es" ~uch as trade marks, logos or com~any n~mes 2D o~ manu~acturer~ or distr;~to-~, or other in~ormation ~n order to ~n~ e the ~re~ tio~ o~ ~00~8 wrap~ed or D~ in the lam~ t-.
T~ ~ener 1, l~m~ ~A~ h-~tB aro ~ri~ted cz emkQ~S9A o~ O~Q ~de only. ~t~ y~ thQ 'pa~er ~ intoa or the metal fo~ ~mbo~-d, but occa~io~ally ~ot~ the metal foil iJ ~ ted ~nd the~aDer i~ embo~8~d. Th~
~rint~ng an~ ~mhos~ is carried out by ~ 8eB ~-h~ ~
are w~ ~u. ln ~r;~t~ te-hnology, s~ch as roll to roll em~o~ n~ lnta~llo ~r;~
Whlle it ~ w~ m in thQ ~rlnt~ a~
WO 97/45266 PCT/SC~C~ OS
lndu~t~y to ~-G~e a l~ te~ ~eet comDrl~ an embo~s~a me~al foil ~ ~rintod ~aper, it has not h~therto ~een ksun~l to ~rovlde a lam~n~t3~ sheet on whlch t~e ~r~nt~ng a~d emboss~g ~re ~n reglstr~ ~, that i8, on 5 W~h there 1~ exact ¢G~ea~Y~ F of th~ ted an~
embo~eCI imag~J,.
An object o~ the ~ ~~t in~ent;o~ ie tO prO~ae a l~ate~ ~he-t com~ri~in~ ~l~te~ p~r and em~Q-~eA
m~tal ~o~l wherein the ~r~n~ng a~ embossin~ are in registration.
A further object of the ~re~e~t invention i~ to ~ro~de a ~e~-gJ for ma~uf~cturing such a l~mi~ated ~eet.
~ c~o~ to th~ ~re~en~ in~ens~o~ th~re 18 provi~eO, a ~ 8 ~or m.~n~r~tur~g a l a~;r~te~ ~ah~t 15 co~risa~g the Bte~s of:
(i) adherlDy to~ether a ~heet o~ m~tal foil an~ a ~heet of ~a~er;
(11) ~r~ an lmag~ on a~ ouser ~urface o~ the ~a~er, and (liil embo~i~g a mirror o~ t~e lma~ o~
t~e ~etal ~oll ~ n ros7io~ c~-~ w~ th - the Drinted ~m~go on the ~aDer.
Accordln~ to the ~r~ t ln~nt;o~ ~ere ~
~ ro~e~ a ~ _~e0 for manu$actur~ a l~m~Dat~d sheet com~risi~g the 8te~ o~:
(i) a~he~ng tog~th~r a ~heet o~ ~etal ~oll a~d a ~heet o~ ~a~r:
WO 97/45266 PCI'/SG9610000~i (1~) A~O~ a~; ge on thA metal ~0~15 a~
(i~i) ~r~t~Sr a ~irror o~ ~e tm~ge on t~e out~r ~ur~sae of ~ S~er $~
reSJi~r~t~ with t~ e~bo--~d i~age on the metal foil.
~ noted ~bove, tlle order of th~ pri~t~ ~
embOE~ Ite~ iB not ~r~ .liT, it l8 prererr~d t~at t~eembossing ~te~ e ~:he printing step.
It i~ y ~r--~--rrea 1~ h~ ~ro~
compri~R detectiDg the first formed of the ~ri~ted and o30ed ~mage~ a~d co~tro~ the ~ub~equent embo~ pr~n~g ~t~ to e~8ur~ reg~stratio~ of the auontly ~o-meA rrin~ bo~e~l $mage~.
~e ~te~ of adherina together the ~he~ t- of ~aper an~ metal ~o~1 m~y be carrled out by any ~ultabl~ method.
In a ~referrod e~bod~me~t, the metal ~oil i8 r~r~A over a coatln~ roller wh~ch ~~11eB adh~ e to o~e surface o~ the metal ~oil. q!he ~er a~d metal ~'oil are the~ pala~ed 20 betweer~ a ~alr o~ rolls whlch ~ses~ the ~aDer a~d the ed~ ~e co~e-~ e~ o~ t~e metal ~o~ l tosrether to ~osm th~ 1 ~ ~ t - ' ~}~et .
q~e ~bo~uJ Jte~ ~y be carried out by a~y ~u~ta~lo me~od. Tn o~ t~o!l o~ l~g, a WO~ 9~' 25 (~u~ aB a roll~r) ~d eDlboB~i~g die i~ loc~ on eit~er ~d~ o~ the l~m;r~ te~ ~heet a~ brousJht to~et~er Bo t~at the die ~o~ t- a~d ~boJ~e~ t~e f oll . 1~ ~other m~thod of embo8~ the ~ "e $B 8tat~r -ry ~nt~ the dle 18 moved u~ a~d aO~ ~r ~ut the met-1 ~oil of t~e l~;~ate~
30 Bheet. I~ ~tL~ metho~ of em~r;nq~, the ~ ece i~
mo~r~d ~g~ t t~e ~c of the l~ 8heet, t~
~re~i~ the m~tal ~o~l aaa~t the ~~ho~sl~ e.
It ~8 ~sefer~d S~t, the ~"~oc~ Ing ~te~ CoD~?ri~
~di~g the 1~ t '~ U~ the ~$~ o~ two roll~, w~th ~- soll a~tl~ a~ a ~ r~ 8~ belru ~on~d ~!rom a 5 relati~ely ~o~t ~Ser;.~l auch a~ r~ a~d the oth~r roll aat~ng a~ a ai-- ~ be~;r fon~CI ~rom met~ uc~ a~ steel.
~ e ~r:-~t;~ ~t~ ~y be carr~e~l out ~y ~;y ~uitablo Dlethod. For ~xa~le, the ~r~nt~ng ~te~ ~ay co~ri~e rell~ or lett~y~c3~ -yrinti~SJ, ~ -n~sJra~hlc 10 ~r~n~ r or ~ntagllo ~r~ uch as ~hotoçrra~r~ or roll to roll gra~rure.
The ~ h~t o~ t~e ~rel~ent in~rentlon mz~y ha~e l?hy~lcal characteri~t~cs a~pro~rlate for the ~te~eA
~3e. For exa~le, whore ~t 18 ~n~ e~ ~or wra~;n 15 co~fect~o~ery, the l~nate~ ~eet may ne~d to b~ ~re~
?~ ~ltorn:~t~ely, wh~re lt i~ ;nt~n~el3 to l~n~
c~garette boxes, it ~ l~e noces~ that the l~mlnated ~heet be relati~ly ~ 1 60 that it ca~ be ~o~e~ a~
ma ~ nt~ t~e ~ol~ .
D~fer~t ~ c~l cS~s~acterl~t~ C8 of t~e l~mi~ate~l ~ et ~ay be ~rov~ 5 ln l?art b~r c~oice o~
adh~slvla and the ~Ira~ ~d t~e o~ ~aper asuVor metal foil.
It ;8 ~r~Serr~d t~at t~e ~etal ~oil compr~se a metal cho~ oml the m~ s~rou~ Of the c~oriodic table.
t i8 ~r'c;~ rly pr-~-rsed t~t t~ ~tal roil co~?ri~e~ or co~l~t~ o~ a~
o~t~ y, t~e ~rocees of t~ ~r~s~t i~v~r~t:o~
co~risos colour~g th~ ~t~l foil. Prefer~ly, tho CA 022~8~7~ 1998-11-2~
colour~ ~te~ co~rise~ a roll to roll ~ra~ure ~r~
prOCeBEI i~ wh;~h the w~ surfac- O~ the metal ~o~l iB
colo~ed by bei~g ~ass~a across a~ l~lced ora~ure roll. ~rhe coloured i~k ae~os~ea on eh- metal foil by t~e ~ra~ruse 5 roll ~ay b~ driod by ~,-~g~ ths ~etal ~o~l through ~ hot air c~ber or the lik~.
ThQ ~L~-r't' i~ ~ ~t'~~'' 28 ~le~cribed furthor by way of~ exa~l~ wit_ re~ ~ca to thQ accom~anyirL~ ClraWings i~
~-h; C'~':
F~gure 1 ~B a ~cbe~atla dla~ o~ a ~r~f~rr~d bodiD~s~t o~ a y~ in ~o~A~n~e with the ~reses~t ~n~n~ or ~ tur~n~ 8 ~ref-rred ~ ~:?; vnt 0~ a ted ~heet i~ ~aor~a~e w$th the ~re~ent lnv~ntion;
Fi~uro 2(a) i~ a ~lan view of the metal ~oil surface o~ th- lami~ate~ she~t ~nu~actured by the proce~
shown in Fl~ure l;
Figure 2(b) 1~ a ~lan ~lew of the pa~er ~ur~ac~
of the l~ sted sh~et ma~u~actured by the process shown in ~igure l; and Flgure 3 i~ a cro-- sect~on o~ the 1 a~; ~ted 8hRet ~hown ~n F~ur-~ 2(~) a~d 2(b).
~n ~h~ ~C_~JJ ~oWn ~n Figure 1 metal foil (3 an~ er (4) are ~ed fr ~ se-~ecti~e reel~ (1) and ~2) an~
are ~a~ed th~0~h a ~erl-~ o~ work~t~n~Q at ~ h th~
met~l fo~l (3) an~ the ~a~er t4) arQ la~n-t-d toget~er, an ~m~e iR ~ri~ted on the ~p~r (4), and a ~mirror~ imag8 i8 embos~ea on the metal fo~l (3) .
.
Wlth re~e~e ~~ to Fl9Nre 1, the me~al ~oi~ t3), ty~c~ly ~il~er alum~n~um f~ Rrea from the reel CA 022~8~7~ lsss-ll-W097/4S266 PCT/SG9610HN~
tl) o~er a coating roll (5) which deposits ad~esive, ~re~erably as an even ~lm, o~er one surface o~ the metal foil (3).
~he metal ~oil (3) and pa~er (4) ~rom the reel l2) are then ~a~ed between two ~am~natin~ rolls (6a,6b) which press the adhe~ive coated ~urface of the metal foil (3) evenly A~A~t one surface o$ the paper (4) to ~orm a ;~Ated sheet.
The outer surface of the metal foil (3) of the l~min~ted sheet iB then coloured by transporting the lAm;n~ted sheet in contact with a gravure roll (7) which deposits a layer of coloured ink on ~he outer surface o~
metal foil (3).
The wet ink is dried by pa~sing the laminated sheet through a drying chA~her (8) in which hot air iR
circulated.
~ he lAm;~te~ sheet i~ then passed acro~ a gravure cylinder (9) which lea~e~ a printed image on the outer ~urface of the paper (4).
The wet ink on the paper i~ then dried by passing the l~ ;~A ted sheet throu~h another drying C~r ' _r (10).
The l A~ i~ted shQet is then passed to an embossing station which com~rises a wor~piece ~12a) and a die ~12b) ~Jh;ch embosses on the metal $oil (3) a ~mirror~
image of the printed image on the ~aper (4). A control as~embly which includes a sensor ~11) u~stream of the embossing workstation detect~ the ~rinted image on the ~a~er (4) and controls the process by any suitable means to ensure that the embossed "mirror" image on the metal foil (3) i8 in registration with the ~rinted image on the ~a~er (4) Substitute Sheet (Rule 26) CA 022~8~7~ 1998-ll-2~
W097/45266 PCT/SG96/00~5 Finally, the embossed and printed laminated sheet is fed onto a large reel ~13) for storage prior to the sheet being cut and spooled onto smaller reels.
Figure 2 (a) shows the outer surface of the metal foil (3) of a section of the laminated sheet manufactured by the process described above on which is embossed an image (15) which comprises an array o~ the word "tobacco". Figure 2 (b) shows the outer surface of the paper (4) of the section of the laminated sheet shown in Figure 2 (a). The outer surface of the paper is marked with a printed image (17) which comprises an array of the word "tobacco". The arrangement is such that there is correspondence in shape, size and position of the embossed and printed images.
Figure 3 (a) is an enlargement of a cross section of part of the laminated sheet shown in Figures 2 (a) and 2 (b) which shows the metal foil (3) and the paper (4) held together by a thin layer of adhesive (18).
The metal foil (3) has impressions (l9)where the embossing die has made contact and depressed the surface of the metal foil. As the e~bossing and printing are in registration, the paper has deposits of ink ~20) which correspond to the impressions (l9)in the metal foil (3).
Figure 3 (b) is an enlargement of a cross section of part of the laminated sheet shown in Figures 2 (a) and 2 (b) which shows the metal foil (3) and the paper (4) held together by a thin layer of adhesi~e (18).
The metal foil (3) has impressions (14) where the - embossing die has not made contact and depressed the surface of the metal foil. As the embossing and printing are in registration, the paper has deposits of ink (16) which correspond to the impressions (14) in the metal foil (3).
CA 022~8~7~ 1998-ll-2~
W097/4~266 pcTlsGs6mw~s It is noted that the particular image shown in Figures 2 (a) and 2 (b) is an arbitrary selection and that any suitable image may be embossed and printed on the laminated sheet.
It is also noted that the production of a laminated sheet having embossed and printed mirror images that are in registration is believed to be an important means of enabling purchasers of products, such as tobacco, to distinguish between the products of different traders.
In the tobacco industry, the principal benefit is in enabling detection of non-genuine cigarettes.
While the invention has been explained in relation to its preferred embodiments it is to be understood that various modifications thereof will become apparent to those skilled in the technology upon reading the specification.
~rB
Claims (8)
1. A process according for manufacturing a laminated sheet comprising the steps of:
(i) adhering together a sheet of metal foil and a sheet of paper;
(ii) printing an image on an outer surface of the paper, and (iii) embossing a mirror of the image on the metal foil in registration with the printed image on the paper.
(i) adhering together a sheet of metal foil and a sheet of paper;
(ii) printing an image on an outer surface of the paper, and (iii) embossing a mirror of the image on the metal foil in registration with the printed image on the paper.
2. A process for manufacturing a laminated sheet comprising the steps of:
(i) adhering together a sheet of metal foil and a sheet of paper;
(ii) embossing an image on the metal foil;
and (iii) printing a mirror of the image on the outer surface of the paper in registration with the embossed image on the metal foil.
(i) adhering together a sheet of metal foil and a sheet of paper;
(ii) embossing an image on the metal foil;
and (iii) printing a mirror of the image on the outer surface of the paper in registration with the embossed image on the metal foil.
3. The process defined in claim 1 or claim 2 comprises detecting the first formed of the printed and embossed images and controlling the subsequent embossing/printing step to ensure registration of the subsequently formed printed and embossed images.
4. The process defined in any one of the preceding claims wherein step (i) comprises passing the sheet of metal foil in contact with a coating roll which applies adhesive to one surface of the metal foil and passing the adhesive-coated metal foil and the sheet of paper between the nip of a pair of rolls which press together the paper and the adhesive-coated metal foil to form the laminated sheet.
5. The process defined in any one of the preceding claims wherein the metal foil comprises a metal chosen form the main group of the periodic table.
6. The process defined in claim 5 wherein the metal foil comprises of consists of aluminium.
7. The process defined in any one of the preceding claims process comprises colouring the metal foil.
8. A laminated sheet manufactured by the process defined in any one of the preceding claims.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96180377A CN1229384A (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of laminated sheet |
| PCT/SG1996/000005 WO1997045266A1 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
| CA002258575A CA2258575A1 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
| AU62480/96A AU715285B2 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
| IDP962316A ID16700A (en) | 1996-05-27 | 1996-08-15 | LAMINATION SHEET AND THE PROCESS OF MAKING |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96180377A CN1229384A (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of laminated sheet |
| PCT/SG1996/000005 WO1997045266A1 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
| CA002258575A CA2258575A1 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2258575A1 true CA2258575A1 (en) | 1997-12-04 |
Family
ID=27170910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002258575A Abandoned CA2258575A1 (en) | 1996-05-27 | 1996-05-27 | Laminated sheet and process for manufacture of a laminated sheet |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1229384A (en) |
| AU (1) | AU715285B2 (en) |
| CA (1) | CA2258575A1 (en) |
| ID (1) | ID16700A (en) |
| WO (1) | WO1997045266A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI116687B (en) * | 2000-08-15 | 2006-01-31 | Avenira Oy | Method and arrangement of cardboard manufacture and cardboard product |
| JP5284603B2 (en) * | 2007-05-31 | 2013-09-11 | 株式会社小森コーポレーション | Sheet-fed printing machine |
| JP6658106B2 (en) * | 2016-03-01 | 2020-03-04 | コニカミノルタ株式会社 | Image forming apparatus, image forming method, image forming management apparatus, and control program |
| CN113427875A (en) * | 2021-07-09 | 2021-09-24 | 云南名博包装印刷有限公司 | Composite film with three-dimensional effect and manufacturing process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU76649A1 (en) * | 1977-01-27 | 1978-09-13 | ||
| CA1143614A (en) * | 1978-04-14 | 1983-03-29 | Joseph C. Harkins, Jr. | Process for producing texture resinous sheet |
| US4312686A (en) * | 1980-02-11 | 1982-01-26 | American Biltrite Inc. | Printed and embossed floor covering and method and apparatus for its manufacture |
| MY108715A (en) * | 1992-09-09 | 1996-11-30 | Hilglade Pty Ltd | Self inking embossing system. |
| JPH06344649A (en) * | 1993-06-04 | 1994-12-20 | Dainippon Printing Co Ltd | Production of printing and emboss-processing label paper |
-
1996
- 1996-05-27 AU AU62480/96A patent/AU715285B2/en not_active Ceased
- 1996-05-27 CA CA002258575A patent/CA2258575A1/en not_active Abandoned
- 1996-05-27 WO PCT/SG1996/000005 patent/WO1997045266A1/en not_active Application Discontinuation
- 1996-05-27 CN CN96180377A patent/CN1229384A/en active Pending
- 1996-08-15 ID IDP962316A patent/ID16700A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU6248096A (en) | 1998-01-05 |
| AU715285B2 (en) | 2000-01-20 |
| ID16700A (en) | 1997-11-06 |
| WO1997045266A1 (en) | 1997-12-04 |
| CN1229384A (en) | 1999-09-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |