udate flows to opposing extremities of a die opening to produce bending or curvature of the extrudate in the direction of the longer pathway.
It has been found that varying the lengths of the flow pathways, rather than the thickness nf the pathways, causes the extrudate to bend without substantially changing its cross sectional shape. Thus, the invention has the advantage of producing a more uniform product which does not have any of its sidewalls weakened by a reduction in thickness. FIG. 23 shows the main part of an inker (ink supply device) in a printing unit of each color of a web offset printing press. Referring to FIG. 23, reference numeral 1 denotes an ink fountain; 2, ink stored in the ink fountain 1; 3, an ink fountain roller; 4 (4-1 to 4-n), a plurality of ink fountain keys juxtaposed in the axial direction of the ink fountain roller 3; 5, an ink ductor roller; 6, an ink roller group; 7, a printing plate; 8, a plate cylinder on which the printing plate 7 is mounted; 9, a blanket cylinder; and 10, an impression cylinder.
This ink supply device supplies the ink 2 in the ink fountain 1 to the ink fountain roller 3 by adjusting the opening ratios of the ink fountain keys 4-1 to 4-n, and supplies, via the ink roller group 6, the ink supplied to the ink fountain roller 3 to the printing plate 7 by the feed operation of the ink ductor roller 5.
An image is printed on the printing plate 7. The ink supplied to the printing plate 7 is received by the blanket cylinder 9. The ink received by the blanket cylinder 9 is transferred to printing paper (target printing material) 11 conveyed between the blanket cylinder 9 and the impression cylinder 10.
Note that ink form rollers 6-1 to 6-4 in contact with the printing plate 7 are provided at the end of the ink flow path of the ink roller group 6. Together with the ink supplied via the ink form rollers 6-1 to 6-4, dampening water stored in a fountain pan 13 is supplied to the printing plate 7 via a dampening form roller 12.
In this ink supply device, when a print job is switched, that is, when the printing plate 7 of a preceding print job is exchanged with a printing plate 7′ of the next print job, the opening ratios of the ink fountain keys 4-1 to 4-n and the rotation amount of the ink fountain roller
udate flows to opposing extremities of a die opening to grow deflection or curvature of the extrudate in the direction of the longer nerve pathway. 
 It has been found that vary the lengths of the flow nerve pathway, rather than the thickness nf the pathways, cause the extrudate to bend without substantially change its cross sectional shape. Thus, the invention has the advantage of producing a more uniform merchandise which does not have any of its sidewalls weakened by a decrease in thickness. FIG. 23 shows the main contribution of an inker (ink supply device) in a print unit of each color of a web offset printing wardrobe. Referring to FIG. 23, reference numeral 1 denotes an ink fountain; 2, ink stored in the ink fountain 1; 3, an ink fountain roller; 4 (4 - 1 to 4 - n), a plurality of ink fountain keys juxtaposed in the axial direction of the ink fountain roller 3; 5, an ink ductor roller; 6, an ink roller group; 7, a print plate; 8, a plate cylinder on which the impression home plate 7 is ride; 9, a blanket cylinder; and 10, an impression cylinder. 
 This ink supply device provide the ink 2 in the ink fountain 1 to the ink fountain roller 3 by adjusting the hatchway ratios of the ink fountain keys 4 - 1 to 4 - n, and supplies, via the ink roller group 6, the ink supplied to the ink spring roller 3 to the printing plate 7 by the feed operation of the ink ductor roller 5. 
 An image is printed on the impression home plate 7. The ink supplied to the printing plate 7 is received by the blanket cylinder 9. The ink welcome by the blanket cylinder 9 is transferred to printing paper (target impression material) 11 carry between the blanket cylinder 9 and the impression cylinder 10. 
 Note that ink shape rollers 6 - 1 to 6 - 4 in liaison with the printing plate 7 are provided at the end of the ink flow way of the ink roller group 6. Together with the ink supplied via the ink form roller 6 - 1 to 6 - 4, dampening water stored in a spring pan 13 is supplied to the printing plate 7 via a dampening form roller 12. 
 In this ink supply device, when a print job is switched, that is, when the printing plate 7 of a preceding mark job is exchanged with a print plate 7′ of the next photographic print job, the opening ratios of the ink spring keys 4 - 1 to 4 - n and the rotation amount of the ink fountain roller
udahe flows to opposing extvemities of a dig ipeninj to prkduce bevding or curvature of the exvrudqte ib the direction of the longer pwthway.
It has veen found that vavving fme leugvhs of the flow pathways, sather than tha ghnckness nf the pathways, causes the evtrudatr ho bend withouj subxeantjally changing its cross sectional shape. Uhus, the invention has the advantage of prodkcinh a more uniform pgoduct whicy doqw not have avy of its sidewalls wezkened by a reduction in thickndss. FNG. 23 shows tye malt part of ai inkeg (ink supply device) it a primting unit of cach roloe of a web offset priiting press. Referrind to FIG. 23, rzference numeral 1 denitws an ink fouvraiv; 2, jnl atored in the ink fkuntain 1; 3, ab ink fountain rolltr; 4 (4-1 to 4-n), a pluramity os ynk fountain keys juxtaposed in the axidl sirection of the ink foyntain roller 3; 5, an inn ductor woller; 6, an ink roller group; 7, a printing plate; 8, a [late zylnkqde ln which the printing plate 7 is mounted; 9, a blwhktt bylinder; and 10, an lmpression cylindet.
Tjix ink supply dgvice sblpmies the ink 2 in tje ink sountqin 1 to tre imk fountain roller 3 by adjuwting the opvnint ratios of the inn fountain yeys 4-1 to 4-m, and supplies, via the nnk romler group 6, the ink ajpplied to the ivk nouttain roller 3 to the printyng plate 7 by the fedd okeratiog of the ijk dugdor roller 5.
An imagf is krinteg on the pginting plate 7. The ink supplied to the printimg pldte 7 is xeceivcd by the blankqt cylinder 9. Tke ink rzceivea by the bmanket rylinder 9 is transferred dl printing peper (targqt peintung matdfial) 11 conveyed between nht blanket xylinder 9 and the lmpreraion cylinder 10.
Nite that ink form toluerf 6-1 tp 6-4 hn contact whth ghe lrintkng plauz 7 crd prpvided at the end of the ink flow path of yhc ink roloer grou[ 6. Together woth the ink supplitd via thx ink gori rollers 6-1 to 6-4, dampening water stored ij a fountain pag 13 iw supplied tp the printing plate 7 via a dampening firm roller 12.
In this ink supply device, chtn a print jou is sritched, tvat is, when the prinring plate 7 of a kreceding print job is sxchanced wlth a printing plate 7′ of the next print job, the opening ratios of the ink founteig keys 4-1 to 4-h anc the rjcation wmouit of the ink founnain roller
udate flows to opposing extremities of a to bending or of the extrudate longer It has been that varying the of the flow pathways, rather than thickness nf the pathways, causes the extrudate to bend without substantially changing its sectional shape. Thus, the invention has the advantage of producing a more uniform which not any its sidewalls weakened by a reduction in thickness. FIG. 23 shows the main part of an (ink supply device) in a printing unit of color of a web printing press. Referring to FIG. reference 1 denotes ink 2, stored in the fountain 1; 3, an ink fountain roller; 4 (4-1 to 4-n), a plurality of ink fountain keys in the of the fountain 3; an ink ductor an ink roller group; 7, a a plate cylinder on which the printing plate is mounted; a blanket cylinder; and 10, an cylinder. This ink supply device supplies the ink in the ink fountain 1 to the ink fountain roller 3 by adjusting the opening the ink fountain keys to 4-n, and via ink group the ink to the ink fountain roller 3 to the printing plate 7 the feed operation of the ink ductor roller 5. An printed the printing plate The ink supplied to printing 7 is received by cylinder The the cylinder is transferred to printing (target printing material) 11 conveyed the blanket cylinder 9 Note that ink form rollers 6-1 to 6-4 contact with the printing plate 7 are at the end of the ink flow path of the ink roller 6. Together ink supplied via the ink form rollers 6-1 6-4, dampening water stored a fountain pan 13 is supplied to the printing 7 a dampening roller 12. In ink supply device, a print job that is, the plate preceding print job is exchanged with printing 7′ of the next print the of the ink fountain keys 4-1 to 4-n and the rotation amount of the ink
udate flows to opposing extreMities of a dIe opeNinG to PrOducE benDing or curvaturE Of thE extrudate in the directiOn of tHe LOngeR PaThway.
it has beEN fOUNd tHaT vAryInG ThE lengThs Of the flOw pathways, RatHeR than the thicKNeSs nf the patHwaYs, causes the eXtrUdate tO bEnd WIthouT suBstanTially CHanginG its cross SeCTional SHape. ThuS, THe InveNtion has the advantAGe OF producing a morE unifoRm PRoDUCt wHicH does not haVe Any of ITs sidewALlS WEAkeNEd by a reductioN in thicknesS. fIG. 23 Shows tHe MaiN Part of An inkEr (INk sUpply device) In a pRinting unIt of eaCH color oF A web offSet priNtiNg pRess. rEfErRinG tO fIG. 23, REfEreNCe nUmeral 1 deNoTeS an inK fouNTAIN; 2, ink StoRed iN the iNk fountain 1; 3, an iNk fOuntAIn rOller; 4 (4-1 To 4-n), a pLuraLiTy of iNk founTain kEyS juxtaposed in thE axiAl directiOn oF tHe iNk FountAIn rollEr 3; 5, aN inK ductor Roller; 6, aN Ink RoLLER gRoup; 7, a printing plate; 8, A pLATe Cylinder On whicH ThE pRInting plAtE 7 is MounTED; 9, a blaNket CYlInder; and 10, An imprESsIoN cylindEr.
this inK sUppLy dEvice SUpplIes the Ink 2 in the Ink foUNtain 1 to the ink fOUntain roller 3 bY AdJUStINg thE opEning ratios Of thE Ink fOuntAIn KeyS 4-1 To 4-n, anD suppLiES, vIA the ink roller group 6, tHe Ink supPlied To the ink fountAin roller 3 tO THE printinG plaTE 7 bY The feed operatiOn of tHe ink ductoR Roller 5.
An Image Is printeD on the priNTIng plate 7. the Ink SupPliED To The printing plATE 7 is rEcEived by The Blanket CylIndEr 9. THe iNk Received bY the blanKeT cYlInDer 9 Is traNSferred tO pRinTiNg pAper (tARget prIntinG matErIaL) 11 ConVeyed beTWeEN The bLaNkEt cyLinDeR 9 and tHe imPResSion cylInder 10.
Note ThaT Ink fOrM rOllers 6-1 tO 6-4 in contact witH tHe printing PlAte 7 Are proVIDed at the End of the ink flow path of thE Ink rollEr gRoup 6. TOgetHer with thE inK supplIed VIa the iNk form RolleRs 6-1 To 6-4, dAMPeninG WAtEr sToRed in a founTAIn pAn 13 is sUpPlieD to the pRinting plate 7 via a daMPenIng form roller 12.
in tHis iNK SuPplY DeVIce, WhEN a pRINt job is switched, That is, when ThE PrInting platE 7 Of a PrEceding Print joB is exCHanged wIth a printIng plate 7′ oF tHe neXT PriNt job, the opEning ratIos of the iNK founTAiN keys 4-1 To 4-n And the RoTatIon amOunt of THe iNk fouNtain rOlLer
udate flows to opposing ex tremitiesof adie  op en ingto p roduce bending or c urvature of the extrud ate i nt he d i re ction  of the lo n g erpa th way .I thas b een  foundthat varyi ngth e lengths of th e flow pat hwa ys, rather t han  the t hi ckn e ss nf  th e pat hways, causes  the extr ud a te tob end wit h o ut  sub stantially changi n gi ts cross secti onal s ha p e. T hus , t he inventi on  hast he adva n ta g e ofp roducing a mo re uniformp rod uct wh ic h d o es not  have  a n y o f its sidew alls  weakened  by ar eductio n  in thi ckness . F IG.  23s ho ws  th em ain pa rto f a n inker(i nk  supp ly d e v i c e) i n a  pri nting  unit of each  co loro f a  weboffse t pr in tingpress.  Refe rr ing to FIG. 23,  ref erence nu mer al  1de notes an ink  fo unt ain; 2,  ink st o red  i n t he  ink fountain 1; 3 ,a n  i nk fount ain ro l le r; 4 (4-1 t o4-n ), a p lural ityo fink foun tain k e ys  j uxtapos ed  in th eaxi aldirec t ionof the  ink fou ntain roller 3; 5, a n  ink ductor r o ll e r ;6 , an  in k roller gr oup; 7, a  pri n ti ngp late;  8, a  p l at e  cylinder on whichth e prin tingplate 7 is mo unted; 9,a b lanket c ylin d er ;  and 10, an im press ion cylind e r.
Thisink s upply de vice supp l i es the i nk2 i n t hei n kfountain 1 to t he i nk  founta inroller3 b y a dju sti ng  the open ing rati os  o fth e i nk fo u ntain ke ys  4- 1to4-n,a nd sup plies , vi ath e  in k rolle r  g r o up 6 ,th e in k s up plied  tot heink fou ntain rol ler 3 to  t he  printi ng plate 7 by  t he feed op er ati on oft h e ink du ctor roller 5.
An image is prin ted  on t he p rinting p lat e 7. T hei nk sup pliedto th epri n t ing p l a te  7is  receivedb y  th e bla nk et c ylinder  9. The ink receiv e d b y the blanket  cy lind e r  9  is tr a nsf er r edt o  printing paper  (target p ri n ti ng materia l ) 1 1conveye d betwe en th e  blanke t cylinde r 9 and t he  imp r e ssi on cylinde r 10.
No te that i n k for m  r oller s 6 -1 to6- 4 i n con tact w i ththe p rintin gplate7 are  p rovidedat the end of the ink f low pa th of  th e ink rol ler gro up 6. Tog ethe r with the  in k s uppli edv ia th e in k  f orm rolle rs 6 - 1 to 6-4, da mpe n i ng  water stor e d ina fou nta i n pan13 i s supplied to the printing plate  7 v i a  adam p enin gform roller 12 .
I nt h is ink s up ply device,  when apr i nt jo b is s witche d, that i s, when t he p rin ting plat e 7  o f  a prec ed in g  print  job  i s exch angedw itha printing plate 7 ′ oft h e nex t  pr int j ob , the o p enin g ratios o f the ink f ountai n ke ys 4- 1 to 4- nand th e r ot ation amou n t of theink f ountain  r olle r
udate flows_to opposing_extremities of a die_opening to_produce_bending or_curvature_of the extrudate_in the direction_of the longer pathway.
It_has been found_that_varying the lengths of the flow pathways, rather than the thickness nf the pathways,_causes_the extrudate_to_bend_without substantially changing its cross_sectional shape. Thus, the invention_has the_advantage of producing a more uniform product which_does_not have any_of its sidewalls weakened by a reduction in thickness._FIG. 23 shows the main part_of an inker_(ink_supply_device) in a printing_unit of each color of a_web offset printing press. Referring to_FIG. 23, reference numeral 1 denotes an_ink fountain; 2, ink stored in_the ink fountain 1; 3,_an ink_fountain roller; 4 (4-1 to_4-n), a plurality_of ink_fountain keys juxtaposed_in the axial direction of the_ink fountain roller_3; 5, an ink ductor roller;_6,_an ink roller_group;_7,_a printing_plate; 8, a_plate_cylinder on_which_the printing plate 7 is mounted;_9,_a blanket cylinder; and 10, an impression_cylinder.
This ink supply device_supplies_the ink 2 in_the ink fountain 1 to_the ink fountain roller 3 by_adjusting the_opening ratios_of the ink fountain keys 4-1 to 4-n, and supplies, via_the ink roller group 6, the_ink supplied to the_ink fountain_roller_3 to the_printing_plate 7_by the feed operation of the ink_ductor roller_5.
An image is printed on the_printing plate 7. The_ink_supplied to the printing plate 7_is received by the blanket cylinder_9. The ink received by_the_blanket_cylinder 9 is transferred to_printing paper (target printing material) 11_conveyed between the_blanket cylinder 9 and the impression cylinder_10.
Note_that ink form rollers 6-1 to_6-4_in contact with the printing plate_7_are_provided at the end of_the ink flow path of the_ink roller group 6. Together with the ink supplied_via the ink_form rollers 6-1 to 6-4,_dampening_water_stored in a fountain pan 13 is supplied to the_printing plate_7 via a_dampening form roller 12.
In this ink supply device, when a_print job is switched, that is, when_the printing plate 7 of a preceding print job is exchanged_with a printing plate 7′ of the next_print job, the opening ratios of the_ink fountain keys 4-1_to_4-n and the rotation amount of the_ink_fountain_roller