Letterpress yog Letterpress luam ntawv thev naus laus zis, theem niaj hnub ntawm kev txhim kho, cov cuab yeej tsim nyog, qhov zoo thiab qhov tsis zoo ntawm hom luam ntawv no

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Letterpress yog ib txoj hauv kev siv cov ntaub ntawv siv cov matrix nyem. Cov ntsiab lus uas protrude yog them nrog xim nyob rau hauv daim ntawv ntawm ib tug muab tshuaj txhuam, thiab ces nias rau ntawm daim ntawv. Nyob rau hauv no txoj kev, ntau yam huab hwm coj lub sij hawm, siv cov phau ntawv, phau ntawv thiab ntawv xov xwm yog replicated.

Kev tsim kho thev naus laus zis

Thaum ntxov, cov ntaub ntawv yog nyob rau hauv daim ntawv ntawm cov laug cam, uas yog kos duab thiab cov lus. Hom kev luam ntawv no hu ua xylography. Nws yog qee zaum siv peb lub sijhawm, yog tias koj xav tsim cov duab kos duab. Lub invention ntawm typesetting daim hlau coj mus rau txoj kev loj hlob ntawm printing. Txhua nplooj ntawv tau tsim los ntawm tus kheej cov cim thiab cov ntawv. Cov ntsiab lus cim tau raug nrum los ntawm cov hlau lead lossis carved los ntawm ntoo. Tom qab ntawd muaj cov tshuab luam ntawv, qhov twg cov ntawv nyeem tau nrawm dua. Cov ntawv protruding tau dov nrog cov xim, thiab nyob rau hauv cov xovxwm lawv ua ib tug imprint rau ntawm daim ntawv.

Ib theem kawg ntawm kev txhim kho yog kev siv cov ntawv luam tawmlos ntawm photopolymer. Muaj aluminium-raws li daim hlau - rau kev luam ntawv tiaj tus, zaj duab xis - teb.

cov pwm hlau tam sim no yog tsim los ntawm kev siv:

• milling;
• etching;
• engravings (cliches, stamps).

Lawv siv yog txwv. Qhov no yog vim lub fact tias cov muaj pes tsawg leeg muaj txhuas, ib tug hlau heev teeb meem rau kev noj qab haus huv. Cov ntawv zoo sib xws yog siv rau:

• tsim tawv nqaij zoo nkauj;
• embossed;
• foiling.

Ib qho ntawm cov paub zoo ntawm cov ntawv luam ntawv yog flexography. Txoj kev ntawv no siv cov ntaub ntawv hloov pauv tau ua los ntawm photopolymer nrog me me 0.5-0.7 mm sib sib zog nqus ntawm cov ntsiab lus dawb. Ib qho kev xav nrog txoj kev no yog tau siv lub tog raj kheej, lub polymer matrix taag rau ntawm nws qhov chaw. Raws li qhov tshwm sim, tus qauv yog txuas ntxiv nrog rov ua ntu ntawm cov qauv. Daim ntawv dav thiab lub tog raj kheej txoj kab uas hla txiav txim siab seb nws yuav yog:

• wallpaper;
• packaging;
• labels.

Impression specifications

High daws teeb meem luam ntawv hauv:

• paper;
• foil;
• tus kheej nplaum zaj duab xis;
• Ypolyethylene;
• vinyl;
• duab los qhia nrog rau corrugated.

Cov duab ci ntsa iab muaj cov duab plaub me me lossis cov duab puag ncig. Xim luam ntawv siv 4 inks. Ntawm cov duab no, pom raster rosette - tus qauv sib txawv.

Yogsaib ntawm daim duab letterpress, koj tuaj yeem nkag siab tias kev siv thev naus laus zis hauv kev luam ntawv tsis mus dhau qhov kev daws teeb meem ntawm kev luam ntawv. Qhov kev txwv rau txoj kev no yog lub tsev luam tawm ntawm cov ntawv xov xwm thiab cov ntawv nyeem, nrog rau cov duab kos ib- thiab ntau xim. Yog tias koj kawm cov ntawv luam tawm ntawm cov ntawv luam tawm los ntawm lub iav tsom iav, koj tuaj yeem pom cov xim tuab ntawm cov duab ntawm cov khoom. Raws li qhov tshwm sim, cov duab bitmap tau txais cov xim saturation, thiab cov cim thiab cov ntawv muaj cov qauv zoo. Serrated fonts thiab nyias strokes yog du thiab nruam.

Hom kev luam ntawv no (ib daim ntawv ntawm cov ntawv luam ntawv) qhia tias yuav tsum muaj lub siab xav hloov tus cwj mem mus rau daim ntawv. Raws li qhov tshwm sim, ib daim duab convex yog tsim nyob rau sab nraub qaum ntawm lub hauv paus luam ntawv, uas yog pom tau, thiab tuaj yeem hnov los ntawm tes. Cov ntawv luam tawm tshiab tsw zoo li roj av vim tias cov binders hauv cov ntawv luam tawm yog tsim los ntawm cov khoom siv roj av.

Qhov zoo thiab qhov tsis zoo ntawm letterpress

Letterpress thev naus laus zis sawv tawm rau nws txoj kev yooj yim, uas yog ib qho ntawm cov ntsiab lus ntxiv. Lwm cov txiaj ntsig suav nrog:

• stable duab zoo;
• txhim khu kev qha technology;
• kev ywj pheej ntawm cov av ntawm cov ntawv luam tawm;
• kev paub tseeb thiab meej ntawm kev sau ntawv ntawm cov ntawv luam;
• nqi ntau lawm;
• khoom siv qis.

Qhov zoo ntawm letterpress yog tias koj tuaj yeem siv dej-soluble, cawv thiab rojpleev xim.

Txawm hais tias qhov kev daws teeb meem siab duab luam ntawv zoo li zoo meej li qhov ua tau, cov cuab yeej no muaj qee qhov tsis zoo, ib qho ntawm lawv yog cov khoom siv daws teeb meem tsawg. Ib qho convex nyem yog tsim rau ntawm qhov luam tawm ntawm sab nraub qaum. Lub downside yog qis kev ua tau zoo, nyob rau hauv lwm yam lus, tsawg ceev. Kev luam tawm hom kev daws teeb meem no yog kev lag luam siv tau los tsim cov ntawv thiab ntawv xov xwm. Nws tau raug sau tseg tias txhawm rau txhawm rau txhawm rau hloov pauv hloov pauv photopolymer matrix, koj yuav tsum siv sijhawm 1-2 teev, thiab hlau clichés yuav tsum tau ua rau ntau tshaj ib hnub, vim tias cov txheej txheem zoo li no yog mob hnyav thiab raug nqi.

Scope of letterpress printing

Letterpress yog hom luam ntawv uas cov ntawv luam tawm nyob siab dua qhov chaw dawb. Tsis siv rau hauv kev tshaj tawm. Nws tseem luam tawm cov ntawv xov xwm, phau ntawv qhia, daim ntawv lo, daim ntawv tshaj tawm thiab cov ntawv sau hauv cov khw luam ntawv nrog cov khoom siv qub.

Hnub no, flexo luam ntawv ntau dua, qhov twg siv daim ntawv luam tawm yooj yim. Nws yog siv hauv kev tsim khoom:

• daim nplaum thiab daim nplaum;
• daim ntawv lo rau cov khoom noj thiab cov khoom lag luam, daim ntawv cim npe;
• daim pib nrog kev sib kis thiab tus lej;
• khoom qab zib wrappers;
• khoom siv pov tseg;
• labels rau khaub ncaws;
• hnab yas thiab ntawv;
• ntim tau yooj yim rau zaub mov, dej haus thiab lwm yam.

Tim cov cuab yeej siv ntawv

Txoj kev lojkev luam ntawv suav nrog kev siv ntau yam khoom siv, ib qho ntawm cov tshuab luam ntawv platen. Nyob rau hauv nws, daim ntawv yog txuas mus rau ib tug immovable tiaj tus nto, uas lub printing rollers yob number case. Tom ntej no los ntawm daim ntawv thiab nias tawm tsam daim ntawv.

Nyob rau hauv lub tshuab luam ntawv teb, lub phaj luam ntawv tsis tiaj tus. Nws yog nyob rau ntawm lub tog raj kheej, uas thaum lub sij hawm tus txheej txheem yog nyob rau hauv kev sib cuag nrog lub thib ob lub tog raj kheej. Nws yog lwm lub tog raj kheej uas siv cov xim rau cov pwm. Hauv qhov no, kev ntaus ntawv tuaj yeem nce ntxiv.

Nyob rau hauv ib lub flatbed xovxwm, daim ntawv txav rov qab mus rau hauv kev sib cuag nrog lub cylinder luam.

Servo tsav tshuab

Lub tshuab servo yog lub tshuab hluav taws xob tswj hluav taws xob tsis siv neeg. Cov qauv no suav hais tias yog cov khoom tsim tau zoo heev, thiab txhua tus ua tsaug rau kev txhim kho kev luam ntawv zoo thiab qhov tsawg kawg nkaus ntawm cov khoom pov tseg. Cov tshuab zoo li no txawv ntawm kev pom kev ywj pheej ntawm txhua chav luam ntawv. Lawv muaj ib qho yooj yim to taub kov screen thiab ib tug winder thiab unwinder uas tso cai rau koj mus kho qhov nro. Los ntawm lub hauv paus tswj ntawm lub tshuab servo, nrog rau hauv zos, cov ntawv luam ntawv tuaj yeem hloov tau sai.

Servo tsav tshuab teb

Lub HTC 260/460 servo-tsav tshuab rotary tso cai rau ntau tshaj 12 xim siv. Xws li multicolor yog ib txwm rau letterpress printing thiab flexography. Cov cuab yeej tuaj yeem ua tiav nrog rotary stencils. Cov ntawv luam tawm tseem ceeb yog laminates thiab daim ntawv nplaum rau tus kheej. Qhov nolub tshuab yog tsim los rau kev tsim cov blanks rau laminated raj thiab saj zawg zog ntim. Lub ntsiab nta ntawm HTC 260/460 yog:

• yuav tsis muaj pov tseg;
• ua tiav cov ntawv txias txias stamping;
• Lamination lees txais.

Txhua lub tshuab luam ntawv yob-rau-yob lub vev xaib yog qhov kev daws teeb meem zoo tshaj plaws rau cov ntawv ntim siab thiab ntim cov ntawv thov. Kev tsim khoom siab ntawm cov tshuab teb yog vim siv cov yob.

Qhov txawv ntawm offset thiab letterpress

Cov neeg siv khoom ntawm cov tshuab luam ntawv uas tsis paub txog kev siv tshuab feem ntau cuam tshuam ob hom luam ntawv. Offset printing tshuab tsis muab rau lub xub ntiag ntawm protruding qhov chaw nyob rau saum npoo ntawm daim ntawv. Kev hloov ntawm tus cwj mem mus rau daim ntawv tshwm sim los ntawm lub tog raj kheej offset, uas yog ib qho nruab nrab ntawm cov khoom. Thaum lub sij hawm luam ntawv, cov khoom no moistened. Cov khoom siv sib txawv ntawm lub cev yog siv los ua cov cim thiab qhov chaw.

Nyob rau hauv cov ntawv luam ntawv cov cim nce saum qhov chaw dawb. Cov txheej txheem luam ntawv yuav siv qhov chaw nrog lub zog siab ntawm daim ntawv rau daim ntawv. Cov luam ntawv matrix yog ua los ntawm ib qho khoom siv. Nws tsis tas yuav moistened thaum lub sij hawm txheej txheem.

Qhov feem ntau ntawm ob hom kev luam ntawv no yog tias lawv kho cov khoom ntim ntim. Cov ntawv luam tawm raug xa mus rau daim ntawv los ntawm convex matrix, siv lub tog raj kheej offset.

Zaj lus

Lab ntawv yog qhov pib ntawm txhua yam thev naus laus zisluam tawm ntau lawm. Niaj hnub no nws tau txhim kho tas li.

Cov thev naus laus zis no siv cov xim viscous uas tsis kis rau hauv daim ntawv, uas txhais tau hais tias qhov khoob tsis tas yuav tsum tau ntxuav. Yog li ntawd, cov ntawv luam tawm tau yooj yim dua los siv. Txawm hais tias flexo thiab offset yog cov niaj hnub versions ntawm letterpress, lub tom kawg yog tseem siv niaj hnub no nyob rau hauv cov ntawv xov xwm thiab phau ntawv.