CA2076561A1 - Coated front for carbonless copy paper and method of use thereof - Google Patents

Abstract

Abstract of the Disclosure An improved carbonless copy paper for use in magnetic image character recognition (MICR). Carbonless copy paper according to the present invention contains a coated front (CF) layer which contains a latex binding component. The improved carbonless copy paper of the present invention provides a more durable CF coating which when imprinted with indicia prevents sorting errors in magnetic image character recognition.

Description

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~rh~ p~e~en~ lnw~ntelo~ a~ ooat0d fxon~) ~o~nula~lon ~or ecl~bor~ o~y pBp~3~ . Tho lnv~ntlon ~u~eth~r .,S ~ol~ Q a ~o~ nt: ~CP) PG~ ~ar~onlo~ opy p~pe~E ~0~ '.lf~13 :, ~n m~gn~tl~ h~ar~t~x roo~nlt~on ~SIC~) aE?~ tLon8 . Ro~
lcul~ly, ~h~ lnvon~iOn rel~te~ ~o an im~rovod C~ rormul~l~ion r ~ onl~6 ~ o~ u~ ~n ~ ppll~.tion~g ~
hUlAt~bn e ~ ln~n~ ne~t~K~ ph~n~ Ln ~nd R lat~x o ~=~ ' .~ . In ~che ~rep~tio~ o ~arb~ o~ py p~or ~ ~r o~
pr~aure ~u~tur~bl~ colorl~ dy~ p~u~o~ co~tod on ~)ie . tlndor~ o~ b~ id~ o~ ~ top ~heet, wh~r:3n lay~ i4 ~ r~d to A co~cocl ~?~lClC O~ ) 14ye~. Thls top ~h~t 1~ m~t~d w11:h a cto~n oh*~t whle~ oont~n~ ~ ~oat~nS wlth Q dyo O,~ pt~X fo~ tll0 dy~ pr~ux~o~, whio~ co~ln~ i~ r~ et ~o h~ el COB'C~d ~n~ or ~CP~ l~y~r. To ~o~r~lop a ~lo~ im~e ~re413Ur~ pllo~ to ~ho t-Jp f3h-3~t to ruptu~ th~ o~np~ul~ on tho b~ h~o~. ~h~
~O rol~~a th~ ~orooa~ul~ ~on~n~ lu~ oontainln~ eol~ed ~ol~ d~e pr0e~0r . ~h~ ~sless~d o~p6ule çon~csnt~ ~ dy~
p~cu~or w~eh ~lul~, oont~çt~ 'che dy~ ~c~ep~o~ ln tho ~F l~ye~
.~ ~h~ y C~v~lopln~ a colo~ im~ge. Multiple copi~ may ~o mc~ by th~ ~dclitior~ o~ e~nn~dl~t~ 0h~ts, ~ red to ~ (C~), which N~U~C~
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~rl~ o~ carbon~-~o oopy p~pe~ p~o~ld~d ol~nl~o~n~c pr~îo~l~ ~o con~ sr~ 3n ~l~od with ~h~ orc~r,g . -.
~ulp~oa~ andard CP ha~ eh~ coa~n~ ~dh~ v~/ ~$~:h~
~t~roh only ~lnde~ ~y~t~n or ~ d~r sy~ra aont~nln~
~, ln~lg~ n~ lA~ex to ~o u~ n MIC~ ~ppl~c~ æ . ~ h ~ck~3 th~ ~ ty ~a~d du~ab~ y s~e~d~d ~o ~i~o~and tho ~C~;
.:, G~ nt~n~ ac~
~n ~ nd~a C~ ~t u~d ~o~ C~ aQt~0~3, ~u~h ~0 ., .. ' w~en tSI~ h~r~ate~o ~o p~ æ~ o~to CF ~h~ C~ tick~
u~ a ~ sh Lmp~Lr~" nu~ae~ng S~ad, th~ ~quip~nt~ in ~oD~on . u~t ~ro~ ho C~ ~N~ e- dur~nç~ Lrnpr~nt p~OC~laB~ P~lor ~ ~ ~t 001l~tlons ~c~ th~- ~xo~ ~m ha~vo ~nclud~d ~n~ln~ t~o C~
.~ ooAt~r~g on~ in tho~o ~ ~hLch w~.ll no~ r~celva.~IC~ princi~
Wh~r~ u~ng ~ ~ull es~ o~nda~d CF ~od~lc1;, th~ d ar~ of m ~,~ ~np.act m~y ~ o~ 3pO~ ~0.g. tlny sr3R~ ol! ~cî~lo .1 nu~ ~r.oth~r ch~ z~o~ hl~ slng m~ay ha~0n l~modlately d2~rl~ p~l,ntln~ proceas o~ l~ter on ~lurl2~ n ~roldll ~O ç~ P~llure oacur ln ~æ p~inkocl al~r~at~4, orro~ k~ ~
co ~Q. t9~ ~n~ ~O~ t ~ ~ent . Th~ mag~neti~ g~ h~r~ r ~.- .
x~s:t~on~ o~ t25~C~ 40~nnor 1~ not ~ to co~-3o~cly l~la~ y ~he ,, ~ul~
llOhe~ e MIC~ cha~ao~ is on 2 ~n~c ah~c, th~ ~h~ ay b~
put thro~h æ~ ~or~ing pro~3~ ny ~0 30 ~ or more. ~ :h0 _........ c~ro.~t*r ~.~ n~t olscrly do~ln~d 'chsou~hout 'ch~ lL~Qtlm~ o u~ o~
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: ~ ~th~r4~o~ bg~t ~ ~het ~ n~c in~r0n~i~n o~r~omo ~nd o~:hel~ dl~loultlo~ on~ount~d in th~ p~lo~
,~ . o.~
d~otlrlo~ OD~ ; o~ tho p~nt ~nv~rlt~ to ~ rld~ h CF
~nnul~lon whleh i~ao lm~o~d du~ t~ ~nd lexl~ t~
A ~u~ r o~ o~ th~ ~nv~n~l~n ~i ~co pro~ r~onl~
~o~y p~ h ~ont~ln~ ~h~ ~p~o~od cF ~o~t~l~tlos~ .
~h0~ d o~h~: o~oct~ h~ boorl ~hlove~d ~y ~h~ p~a~o~t ~nr~né~on ~hl~h ~ &o ~ C~ ~or~ul~ion ~ mothod o~ u3~ .
., ~ Or~o~ whle~ ~ nç~r~oæ~te~ cele b~nd~ ng ~yJ-t~m to l~p~oYo duralb~ y Anel ~lox~ lLty.
~o ~oh~e-r~ th~ ob~e~t~ ~nd ln a~ordanc~ w~th.~sho pl~pose o t~ lnvon~$o~ 3mbo~ d ~nd bro~ly d~rL~q h~x~in, th~
l~ n~o~ co~p~is~ a co~t~d ~r~n~ o~mul~cion ~or cs~bonle~
c-~p,y 3~ A in~lude~ n~-lmhge d~vel4~ o~ponent ~om~ rom 70 tc 90 part~ ~y dry w~h~ dl~p~lon of ~ -~i~mffnt ~r~d ~rom 10 to 30 pa~ by dl~ ~elght o~ ~n ~cl~ m~
d~lopo~ 100 p~ o~ oA~d aomponont, ~ ~Lnd~r ~mp~l~lng ~Ohl ~out 4 ~o ~ou~ ~5 ~rt~ ~ ~*lght ~ 8 ~ x ~lndo~ ~nd '~
~rom O ~ 0 ~ y w~lgh~ o~ ~ ~tfl~ch ~n~e~, ~flch ~r lqo ~W ~'6~1~1 po.rt~ ~y dry ~ight o~! tho pt gmont ge d--Y~lO~ cc~mp~n~nt, . Id N O. p~ oon~ol ~fJont ln an ~mo~nt ef ~octL~v~ t3 pxo~lde ~ pN o~ : m ~j~6J~ nn~ . a~u~ 7 to 4~0ut Y-~h~ ~C ~ 1 . ~

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I ln~ve~gon ~rLll ~ d ~ndl ~t~lned by moan~ ~ th~ ~lomo~t~ :
I and ~ on p~ u~arly po~nt~d out lrl ~he l~p911Cle~ im~. ;

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~r5 j Th0 CF ~ormul~ on ~or~ to ~l~a pr~nt in~ntl~n I ~n~ude~ ~ pl~t, An ~cld~c ~m~ d~lop~r ~t~rl~ p~
¦~b~Ol ~On~ an~ ind.er. ~:n ~he~ C~ ro~mul~tf,on ~cco~dln~,to ¦ ~cho px~e~n~ ln~ntlon, ~ x ~dln~ ~y~ u~ead to prov~de a prod~ rh~Lch ~ ~ultablv ~or ~C~ ~pp~lcatLon~. In ~d~ition tO
O th~ ~o~n~n~o ll~od abo~, tho C~ fonn~l~tLun ~eo~dln~ to ~h~
. pr~ nt ln~nti~on m8y op~;~on~lly ~on~ n ~ ~low o~ ooatln~ oontrol.
~nt, 4 dlspar~ng ~nt ~nd a ~areh c~ nkln~ e~t.
~bo ~l~ent ~o~ u~o ~n th~ pr~ n~ in~ro~tlon Jh~u~d prc~vii~
~od ~low c~ l ~clo~ hl~h sl~r ~ ln~n~ ~n ~b~ort~nt ~5 ~w e~ e~ ~llUXs~C~ o p~nent ~y ~ loc~co~ ~:som thc~ao ~ ntla ~U~. UII~W~N
srr mAt~ 10 wnic~ n~o rq~cllly ~cnow~ to thu ~ rtl~n.
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"O~ O'~O~O~O~ E~a~plo~ o~ ~u~h ~ n~ Lnalude pracl~l~a~ Al~l~um c~rbo::;

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~' C~lolu~ r~on~ add~ ~:o whlton~ nd ~ htno6~ o~ t~d ~3 . Oe.~ a~on~ h~ ~ hL~b~ bin~e~ d~m~nd th4n l:~olln alo~
~ ~ FU~th~X ~X~pll~ 0~ pl~ t~ ~0~ U~ ln th~ in~ntlon ~nclud~
s ~ c~leln~d ~olln, ~nd C:~lGitlm o~rb~n~, hyd~ l~ine~ i ., ~ n~ t~hyd~A~ a~lo~t~ A12O3 - 3 ~L02 2 H20~
~, (~g ~ ~S~2 -~2~ ~inc oxid~, D~ glo~ (~ t~ ed k~olln , ~.
p~gmont ~ ucæd by ~.c.~. Amer~c~ ~nc. ), ~orpla~g 604 ~h~silcally 0.rt~ctu~d k~olln ~o~uc~d ~y No~d X~olial comE~y)~ ~x~lon ,:~10 (~h~m~ y nQOd1~1B~ Xao~n p~oduc~d ~y ~r~golh~rd Co~p. ) ~nd .~ ~ n~ ~iio~cl~o.
Th~ ~o~c3lc ~go d~v~ll op~r nult~s~ m~y ~o ~r~y type CII~ CO~IO~
~v~lopo~ ~hloh i~ ~a~r di~Qr~ n~ a~ a~lcll~ l~
o~ r, ~.e. ~l~ctr~ c~pt~ ?xoducin~ A colo~ wher. lr.
~15 oom~ln~ n w1th ~ dy~ p~e~l~r~or. Pr~rr~ ph~nol$~ ro~
and 8~ 11ayl~t~.
on~ ~o~r~ed ph~noli~ ln tGr USI~il ln th~ p~s~nt 1nve~tion ~3 ~ zlnq~ lkyl~onol nov~l~o ~e~ Ai~h o~n ~- ob~
und~ th~ :tr~d~n~mo ~-245G ~xom ~hene~tady ~h~mie~ na. ~:
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$ . . Ul~ n ~ddf ~lc~n, ~ r~t,od wlth o~ r ~Ip~rops~ ca~lono .
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2~ ,.",~,. ~x~le~ in U.~. P~t~nt tlO. 3,723,156.
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1 ~ m~t~ y. sz~no ~ or ~ o::m whl~h il~ ~tuZalay r~ct~
w~th a ~t41, ~ ln~ ao~n~un~, ln ord~x to ~u~ o.
~ln~co~ ln~ h~ p~efer~d ~tlon, ~h~ a~
o~tlonu ml-y ~l~o b~ u~ uoh i/33'4 ~:ad~ ), zLr~onlwn (IIJ~
~o~lt ~), o~cront~ a~ num t~T3, Co~ r ~ And ~n ;;' (XI)- !
mount~ ~30g~ tt3 t~F ~t~ula~l~n acoo~in~ to ~cho pr~zlt 3 Ln~r~ht~orl ar~ g~vllDn ~R53~d Oupon 100 E~rtu (dry weLgh~ 8~.3) O~ the n~ do~ ~r c~mpon#n~ H~ th~ ~!or~ul~tlon. q~hl~ .
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~om3pon~n~ ofora,bly ~o~ 80~ ~o ~7~. ~h~ ra~lnd~r 1~ éh~ b, lo~r 3~
~h~ p~ ~ont~ gont ~ uo~ in ~ho pro~ nvor.tLon i4 ~o~ ro~T~ 'ehQs~ whtch ~r~ r~etd~ly rel~o~n~blo to ~hs~ ~klll~d . ~rt~n . ~ ~313 0~E e3Uqh p3~ c30n~41 ~ ts lncludl~ ~unonlum, 1~n o,nd ~o~i~ hyd~o:c~d~. ~he ~ contr~ ns ~ ~dded ~n ~n ~m4~rlt to pr~vl~ ~ p~ ab~ut 7 to ~
~n ~d~ Lon ~c~ o~ ln ~:h~a plao~ o~ ~h~ st~r~h h~nd~n~ :
o eom~n6~n~ lD ttlO ~an~ C~ r~ on~ ~h~ n~ lnv~tlon Adds ~ 9~tox ~ ln~ ~o~pon~nt wh$~h ~prov~ d-.arab~l~ty ~nd ~lox~bS~ tho ¢oatl.ng ~al~ngf co.i:~onl~ opy p~ to .. wL~'nst~n~ ~ch~ ~r~ npr~ in~, p~o~o o~ R.
~rh~ ox b~n~a~ m~y b~ ~lo~t~ ~rom ~yronebu~àL~n~
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.~O~c~ ~o~ u~ ln ~ho lnwn~lon ~;re ~adlly r~3oo~1~abl~ to the ~kil l~d . -7_ .
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. i ~r~ ~e~o l~te~ ~lnd~r~ y l~ ~ h~l und~ the , .
:~ t~ ~ 6aO f~om l:~ow ~h~lo~l u.~ J ~F~ ~osa~ a~o ~i SOB6 ~ G~F~O sloo 2~on~ ~n Co~p. Rolymor ~rodu~t~J ~U 1003 ~!~om Nlppo~ ~oorl ~o.~ ~td.~ P~P ~G 1~121 ~nd RP ~G 19232 ~om ~hDno Poul~n~ ~4~ ChO7~ h~ b~nde~ ~y b~ ~d~ u~ of vn~ o~ ~O~o;
o~ t1~o l~te;lto~ au~ ~v~ 1n c~abln~éior~ n~ ~ or ~lt~
.~ ot~rc:h oom~n~n~. ~h~ l~tex ~lnd~ pre~nt ln f~o~ t ~ tO
2!S ~r'cc p~r lDO pe~ d~ ~n~t~ l, ~or~ o~al~lx, th-la~x b~,~d~ pro~on~ in ~rom abo~t 6 to Rl~o~lt lO p~r~c~ s~h .-;L0 ~or u~o ~rS thc pr~ t $ n~entlo~ ~n bo obt~n~ n~ e ~i tradon~o P0~380, ~ hy~roxyat~yl~t~d ~o~n ~tJIr~h p~od~oed ~y P~ rodts~ aroh G~n ~e p~e~3~nt ~o~ o~t O ~o 20 p~
per lOU p~rt~ of c~ al, ~nore) pr~fo~bly froln ~bout 5 tO ao part~O ~n ~dd~lon to or in ll~u o~ th~ l~tc~x l~nd ~ta~c:h ~5 d~o~rl~d al~o~e, tl~o ~indo~ Inay 1~ ~vmpo~d o~ a ~t~l~ch/ ~.-. ~r~no~uc~d~no ~ uoh a~ P~nglo~ llS~ ~odu~d by ord ~rod~a~t~.
~n ~ddlt~ ~n to th~ ~on~nen~ te~d ab~vo, 'ch~ C~
oom~o~ n ~c~ g ~ 'cb~ pr~ont irl~ntlD~ ~y ~urt21or ir,ql~ld~ -flow o~ ~oætlr~c ~c~nt~l ~g~nt, a ~rch c~o~o~lln~ g 4~nt, ~
g~nt ~3~d ~ ~oa$d~. ThQ ~low cont~ol a~ t ~or u~e ln th~ pr~en~ ~n~ tLon, ~rhlah m~ ~e ~n ~dd~tl~;3n Co or in li~u o~ `
th~ f~t~rch ao~nporl-nt o~ th~ r, 1~ t~ m st~ch, ~ ro~ h~l C~14l0~ c~lrboxymothyl a~llulo~e~ yl Ic~,H~uD~l ~ ohc71, ~ ln ~ p~ot~ln ~rl~r~d m~t-e~ ch~tl~ polym~rs ~O ~ s 4~uch A8 DQ~ yd~ld~ tyrene copolymer prod~ on~n ,~Joo~ co~ oo~ ~ 0r th~ d~nAmo ~c~Ps~ od~ al~n~ke, g~m ~rab~c or . ~ .
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~UG-20-'92 THU 17:17 ID:~OORE RES CTR G I NY TEL NO:716-773-2016 #527 P11 ... ...
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oom~7~n~t.1 0n~ th~ n ~eldltl~n~ th4 ~ nçr ~g~onl:~ ou~h ;~
~oa~ a~nu~ u~od by ~hom ~n~ N~s ~ polya~yllc ~cl~n ~
~c~d~u~, ~ t~ nd ~non~u~ E~llto l:hlsreo~ und~ th~ t~ad~n~ o ~C~ 0~ low mc~ x~ th~t s~y bl~ us~d ln the pr~oont ~nqr~nt~Lon. ~ho ~aounk of ~ow or eoa~ng aont~41 ~ ont to b~ Rd~ dsapend~ ~pon th~ lcul~ a~ont or a~t~ ~ho~n Rnd.
th~ bln~ u~d. o~en ~en oh~n~ing flo~ contro~ aq~nt~ ænd~or l~ , t~o ~dd ~ ~ion a~nt of ~ h componon~ nus~ b~ di~l~d .
0~ ha~ng ordin~ ktll Ln ~ho ~r'c ~uld 1~ o~Qbl~ c~
optlmlzing ~h~ addi~lon ~mounts o~ 'ch~ eo~p~n~n~
Di~ ln~ nt~ for u~0 $n the pre~n~ ln~ent$oa ar s~l~ct~d rom tho~ wh~h ars ~e~lly xec~gn~;sa~l~ to ~h~ ~Xillad art ~ xu~ ' o~ ~uch d~ lnç~ aS7~en~ ~nc!lude ~ um polyac:ryls~ 00~ ~o~ lon~ Co~lo~ 30 ~roe~ue~ y ~ono-~oulenc~5 t)~e l~a~t~d ~orl~ m~nu~Ac~ur~d ~y ~.lt. C;~ao- C~.
$nclud~n~ llum pOlyiBl:lbUtyle~n~ eic anhyclrid~ cOpO~ d~
o~ thal~ne ~ul~n~c ~Ic~d ~on~n~a~s, poly~Qth~ aolds ~fld sodium ~n~ ~mnonlum s~41S~ th~r~o~, ~n~ p~ly~yla~o ancl ~lodl~ and l~monlum oRlte th~$eo~ ~nd, ~mo~ mu~actux--d ~r Rh~ an~ H~
Cc~ . ln~ ( n5~, T~l~ hl~h ~ ~odlum ~salt o~ con~n~d n~pt~ .an~ ~ul~ori~o ~e~ mol 850 ~nd 731 whleh n~ m~thn~ryli~
poly~r~ itlon~ p~ ag~nt~ for u-o ln th~ lnY~ntion ~e d~sc~bo~ ln ~ob~rt D. ~tl~ey, ~x. I'~ol~rlc t)~nlc DL~ o~nt~ ~or Pi~m~n~ t uso~ul ~é2~c~ure~ ~Ind ~he~ r ev~lua~; n~
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O~ q!Rp~ ,rol~ 58, No. 10,Octc~ber 1~75~ which 1~ hexsln incorp~ ed jG~N, U~DU4C~
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Claims (11)

1. A coated front (CF) formulation for carbonless copy paper which comprises:
a pigment-image developer component comprising from 70 to 90 parts by dry weight of a dispersion of a pigment and from 10 to 30 parts by dry weight of an acidic image developer, a binder comprising from about 4 to about 25 parts by weight of a latex binder and from 0 to 20 parts by weight of a starch binder, each per 100 parts by dry weight of the pigment-image developer component, and a pH control agent in an amount effective to provide a pH of from about 7 to about 9.

2. A method of making carbonless copy paper for use in magnetic image character recognition (MICR) systems comprising, applying to said carbonless copy paper a coated front formulation according to claim 1, wherein said carbonless copy paper is imprinted with indicia to be read by magnetic image character recognition,

3. The method according to claim 1, wherein the later binder is carboxylated styrenebutadiene.

4. The method according to claim 1, wherein said acidic image developer is a phenolic resin.

5. The method according to claim 4, wherein said phenolic resin component is a sincated phenolic resin.

6. The method according to claim 1, wherein said coated front formulation further comprises a flow or coating control agent.

7. The method according to claim 6, wherein said flow or coating control agent is starch.

8. The method according to claim 1, wherein said binder comprises from about 5 to about 20 parts of starch.

9. The method according to claim 8, wherein said coated front formulation further comprises a starch cross-linking agent.

10. The method according to claim 1, wherein said coated front formulation further comprises a dispersing agent.

11. The method according to claim 11, wherein said dispersing agent is a sodium polyacrylate copolymer.