Dab tsi yog offset tshuab luam ntawv

Offset luam ntawv yog ib qho kev siv tshuab luam ntawv uas feem ntau siv rau hauv cov duab kos (lossis "offset") los ntawm lub phaj mus rau daim pam roj hmab, tom qab ntawd mus rau qhov chaw luam ntawv. Nws kuj tseem hu ua offset lithography, raws li nws yog raws li lub hauv paus ntsiab lus uas cov roj thiab dej tsis sib tov. Txoj kev luam ntawv no muaj ntau yam thiab muaj txiaj ntsig zoo tau ua tus qauv kev lag luam rau ntau xyoo thiab tseem yog qhov kev xaiv mus rau ntau qhov haujlwm luam ntawv.

Dab tsi yog offset printing tshuab?

Offset printing tshuab yog ib qho tseem ceeb ntawm cov txheej txheem luam ntawv offset. Cov tshuab no yog lub luag haujlwm rau kev xa cov duab kos los ntawm lub phaj luam ntawv mus rau qhov chaw luam ntawv, ua cov ntawv luam tawm zoo, meej, thiab zoo ib yam. Hauv tsab xov xwm no, peb yuav tshawb txog ntau yam ntawm cov tshuab luam ntawv offset, nrog rau lawv cov khoom, cov qauv kev ua haujlwm, hom, thiab qhov zoo.

Cheebtsam ntawm offset tshuab luam ntawv

Offset tshuab luam ntawv muaj ntau yam tseem ceeb uas ua haujlwm ua ke los tsim cov ntawv luam tawm zoo. Cov khoom no muaj xws li cov hauv qab no:

1. Printing phaj:

Cov phaj luam ntawv yog ib qho tseem ceeb ntawm cov txheej txheem luam ntawv offset. Nws feem ntau yog ua los ntawm cov ntawv nyias nyias (xws li txhuas) thiab siv los hloov cov duab mus rau qhov chaw luam ntawv. Cov duab ntawm lub phaj yog tsim los ntawm kev siv cov emulsion photosensitive uas raug rau lub teeb los ntawm cov yeeb yaj kiab tsis zoo. Cov cheeb tsam raug ua kom tau txais dej, thaum cov cheeb tsam tsis tau nthuav tawm cov dej thiab nyiam cov cwj mem.

Lub phaj luam ntawv yog mounted rau ntawm lub phaj lub tog raj kheej ntawm lub tshuab luam ntawv offset, qhov twg nws tau txais cov number case los ntawm cov number case rollers thiab hloov cov duab mus rau hauv daim pam roj hmab. Muaj ntau hom ntawv luam ntawv, suav nrog cov paib, CTP (lub computer-rau-phaj) daim hlau, thiab cov phaj tsis muaj txheej txheem, txhua qhov muab qhov tshwj xeeb zoo ntawm kev ua haujlwm thiab kev luam ntawv zoo.

2. Daim pam lub tog raj kheej:

Daim pam lub tog raj kheej yog ib qho tseem ceeb ntawm lub tshuab luam ntawv offset uas ua lub luag haujlwm tseem ceeb hauv kev xa cov duab kos los ntawm lub phaj mus rau qhov chaw luam ntawv. Nws yog npog nrog ib daim pam roj hmab tuab uas tau txais cov duab kos los ntawm lub phaj thiab tom qab ntawd hloov mus rau hauv daim ntawv lossis lwm yam khoom siv luam ntawv. Daim pam lub tog raj kheej ua kom muaj qhov sib luag thiab meej hloov ntawm cov duab, ua rau cov ntawv luam tawm zoo nrog cov ntsiab lus ntse thiab cov xim vibrant.

Lub tog raj kheej lub tog raj kheej yog tsim los ua kom muaj zog thiab ruaj khov, muaj peev xwm tiv taus cov kev kub ntxhov thiab kev sib txhuam cuam tshuam rau hauv cov txheej txheem luam ntawv offset. Nws tseem yog ib qho tseem ceeb rau kev tswj xyuas qhov tseeb thiab kev sib cuag nrog daim ntawv kom ntseeg tau tias kev hloov pauv tus cwj mem zoo ib yam thiab zoo sib xws.

3. Ink unit:

Lub ink unit ntawm lub tshuab luam ntawv offset yog lub luag haujlwm muab tus number case rau lub phaj luam ntawv thiab tswj cov qib number case uas tsim nyog thiab kev faib tawm thoob plaws hauv cov txheej txheem luam ntawv. Nws muaj cov cwj pwm ntawm tus cwj mem, tus cwj mem chais, thiab tus cwj mem cwj mem uas ua haujlwm ua ke los tswj cov dej ntws ntawm tus cwj mem mus rau lub phaj thiab xyuas kom muaj kev tiv thaiv tus cwj mem zoo ib yam.

Cov cwj pwm ntawm tus cwj mem tuav tus cwj mem thiab tau nruab nrog cov cwj mem hloov tau uas tswj tau tus lej ntawm tus lej hloov mus rau tus cwj mem. Cov number case rollers ces faib cov number case sib npaug ntawm qhov chaw ntawm lub phaj, kom ntseeg tau qhov kev hloov pauv ntawm cov duab. Lub ink unit yog tsim los xa cov naj npawb ntawm tus number case kom ua tiav cov xim vibrant thiab cov ntsiab lus nkig hauv cov ntawv luam tawm kawg.

4. Press unit:

Lub tsev xovxwm ntawm lub tshuab luam ntawv offset yog lub luag haujlwm rau kev siv lub siab tsim nyog los hloov cov duab kos los ntawm lub phaj mus rau qhov chaw luam ntawv. Nws muaj cov phaj thiab daim pam lub tog raj kheej, nrog rau lwm yam khoom xws li lub tog raj kheej lub tog raj kheej thiab cov tshuab dampening. Lub tsev xovxwm xyuas kom meej tias cov duab inked yog pauv kom raug thiab tsis tu ncua mus rau hauv daim ntawv, ua rau cov ntawv luam tawm zoo nrog cov ntsiab lus ntse thiab cov xim zoo nkauj.

Lub tsev xovxwm tau nruab nrog cov kev tswj xyuas nruj thiab cov txheej txheem los tswj qhov tseeb siab thiab ua kom zoo ntawm cov khoom luam ntawv, kom ntseeg tau tias cov ntawv sau npe thiab cov cwj mem hloov pauv. Nws yog tsim los kom haum rau ntau qhov ntau thiab tsawg thiab thicknesses, tso cai rau ntau yam thiab muaj peev xwm luam ntawv.

5. Chav tsev xa khoom:

Lub chaw xa khoom ntawm lub tshuab luam ntawv offset yog lub luag haujlwm kom tau txais cov ntawv luam tawm los ntawm chav xovxwm thiab xa lawv mus rau pawg lossis cov khoom tso tawm. Nws muaj cov khoom xa tuaj, cov ntawv qhia, thiab lwm yam txheej txheem uas tswj kev txav ntawm cov ntawv luam tawm thiab xyuas kom muaj kev sib dhos thiab sib sau. Chav tsev xa khoom yog tsim los tswj cov ntawv ntau qhov ntau thiab tsawg, uas tso cai rau cov khoom siv tau zoo thiab txhim khu kev qha.

Chav tsev xa khoom ua lub luag haujlwm tseem ceeb hauv tag nrho cov khoom tsim tau thiab kev ua haujlwm ntawm cov txheej txheem luam ntawv offset, vim nws yog lub luag haujlwm los sau cov ntawv luam tawm thiab npaj lawv rau kev ua haujlwm ntxiv lossis kev faib tawm. Nws yog ib qho tseem ceeb rau kev ua kom cov khoom zoo sib xws, txo qis qis qis, thiab ua kom lub peev xwm luam ntawv tag nrho ntawm lub tshuab.

Kev ua haujlwm ntawm cov tshuab luam ntawv offset

Cov qauv kev ua haujlwm ntawm cov tshuab luam ntawv offset yog ua raws li cov txheej txheem ntawm offset lithography, uas cuam tshuam nrog kev sib cuam tshuam ntawm tus number case, dej, thiab cov chaw luam ntawv los tsim cov ntawv luam tawm zoo. Cov kauj ruam hauv qab no qhia txog cov qauv kev ua haujlwm ntawm cov tshuab luam ntawv offset:

- Duab nthuav tawm thiab npaj phaj:

Cov txheej txheem luam ntawv offset pib nrog kev npaj ntawm lub phaj luam ntawv, uas cuam tshuam nrog kev nthuav tawm cov duab emulsion ntawm lub phaj kom pom los ntawm cov yeeb yaj kiab tsis zoo. Cov chaw raug ntawm lub phaj ua dej-receptive, thaum lub unexposed cheeb tsam repelled dej thiab nyiam number case. Qhov no tsim cov duab uas yuav raug xa mus rau qhov chaw luam ntawv.

- Ink thiab dej sib npaug:

Thaum lub phaj tau npaj, nws tau muab tso rau ntawm lub phaj lub tog raj kheej ntawm lub tshuab luam ntawv offset, qhov twg nws tau txais cov number case los ntawm tus number case rollers thiab dej los ntawm lub tshuab dampening. Cov cwj mem chais faib cov number case rau ntawm lub phaj, thaum lub dampening system ntub cov cheeb tsam uas tsis yog duab los tua tus number case. Qhov sib npaug ntawm tus cwj mem thiab dej no ua kom ntseeg tau tias tsuas yog cov duab hauv cheeb tsam nyiam tus cwj mem, thaum qhov chaw tsis yog duab tawm tsam nws, ua rau kev hloov pauv huv thiab meej.

- Hloov cov duab thiab daim pam offset:

Raws li lub phaj tig, cov duab inked yog pauv mus rau daim pam roj hmab ntawm daim pam lub tog raj kheej. Daim pam lub tog raj kheej ces hloov cov duab kos rau hauv daim ntawv lossis lwm yam khoom siv luam ntawv, uas ua rau cov ntawv luam tawm zoo nrog cov ntsiab lus ntse thiab cov xim zoo nkauj. Lub hauv paus ntsiab lus offset yog hais txog kev hloov pauv tsis ncaj ntawm cov duab los ntawm lub phaj mus rau qhov chaw luam ntawv ntawm daim pam roj hmab, uas tso cai rau kev hloov pauv tus cwj mem zoo ib yam.

- Printing thiab xa khoom:

Lub tshuab xovxwm siv lub siab tsim nyog los hloov cov duab kos rau hauv daim ntawv, ua kom cov ntawv sau npe meej thiab muaj peev xwm sib npaug. Cov ntawv luam tawm tom qab ntawd xa mus rau pawg lossis cov khoom tso tawm los ntawm chav tsev xa khoom, qhov chaw lawv tuaj yeem sau, ua tiav, thiab npaj rau kev faib tawm.

Zuag qhia tag nrho, cov qauv kev ua haujlwm ntawm cov tshuab luam ntawv offset yog ua raws li kev hloov pauv tau zoo thiab meej ntawm cov duab kos los ntawm lub phaj mus rau qhov chaw luam ntawv, ua rau cov ntawv luam tawm zoo nrog cov xim zoo nkauj thiab nthuav dav.

Hom offset tshuab luam ntawv

Offset tshuab luam ntawv tuaj nyob rau hauv ntau hom thiab configurations kom haum raws li txawv printing xav tau kev pab thiab kev siv. Cov hauv qab no yog qee yam ntawm cov tshuab luam ntawv offset:

1. Sheet-fed offset tshuab luam ntawv:

Sheet-fed offset tshuab luam ntawv yog tsim los luam tawm ntawm ib daim ntawv ntawm cov ntawv lossis lwm yam khoom siv luam ntawv, ua rau lawv zoo tagnrho rau cov ntawv sau me thiab nruab nrab thiab cov ntawv tshwj xeeb. Cov tshuab no tuaj yeem ua ntau yam ntawm cov ntawv loj thiab tuab, muab ntau yam thiab yooj yim hauv kev luam ntawv muaj peev xwm. Lawv feem ntau yog siv rau kev lag luam luam ntawv, ntim khoom, thiab cov haujlwm tshwj xeeb luam ntawv.

Sheet-fed offset tshuab luam ntawv muaj nyob rau hauv ntau yam kev teeb tsa, suav nrog ib qho xim, ntau xim, thiab UV luam ntawv xaiv. Lawv tau nruab nrog kev tswj hwm qib siab thiab automation nta kom ntseeg tau tias cov ntawv luam tawm tau zoo thiab txhim khu kev qha. Lawv tsim nyog rau kev tsim cov ntawv luam tawm zoo nrog cov ntawv sau npe thiab cov xim raug.

2. Web offset tshuab luam ntawv:

Web offset tshuab luam ntawv yog tsim los luam tawm cov ntawv txuas ntxiv ntawm cov ntawv lossis lwm cov ntaub ntawv luam tawm hauv web, ua rau lawv zoo tagnrho rau cov ntawv luam tawm ntau thiab cov chaw tsim khoom ceev ceev. Cov tshuab no feem ntau yog siv rau cov ntawv xov xwm, ntawv xov xwm, thiab cov ntawv luam tawm, nrog rau kev lag luam luam ntawv thiab daim ntawv thov xa ncaj qha.

Web offset tshuab luam ntawv muaj peev xwm luam ntawv ceev thiab muaj txiaj ntsig ntau lawm, ua rau lawv zoo rau kev luam ntawv loj. Lawv muaj nyob rau hauv ntau yam kev teeb tsa, suav nrog ib lub vev xaib thiab ob lub vev xaib xaiv, nrog rau cov khoom siv hluav taws xob thiab cov tshuab luam ntawv txias. Lawv tau nruab nrog kev tswj hwm lub vev xaib siab thiab kev tswj xyuas nruj kom ntseeg tau tias cov ntawv luam tawm raug thiab zoo ib yam.

3. Digital offset tshuab luam ntawv:

Cov tshuab luam ntawv digital offset muab cov txiaj ntsig ntawm offset luam ntawv nrog ntau yam thiab kev ua haujlwm ntawm cov tshuab luam ntawv digital. Cov tshuab no siv computer-to-phaj (CTP) thev naus laus zis los tsim cov ntawv luam tawm zoo nrog lub sijhawm xa rov qab sai thiab tsim cov nqi tsim nyog. Lawv zoo tagnrho rau kev sau luv luv, cov ntaub ntawv sib txawv ntawm cov ntawv luam tawm, thiab daim ntawv thov luam ntawv raws li xav tau.

Cov tshuab luam ntawv digital offset muab cov xim luam tawm meej, nthuav dav, thiab cov ntawv luam zoo ib yam, ua rau lawv tsim nyog rau ntau yam kev lag luam, ntim khoom, thiab kev tshaj tawm luam ntawv. Lawv tau nruab nrog cov kev yees duab siab heev thiab kev tswj xim kom paub meej tias cov ntawv luam tawm muaj tseeb thiab muaj zog. Lawv kuj yog tus phooj ywg ib puag ncig, vim tias lawv txo cov khoom pov tseg thiab siv tshuaj lom neeg tsawg dua piv rau cov txheej txheem luam ntawv offset.

4. Hybrid offset tshuab luam ntawv:

Hybrid offset tshuab luam ntawv muab cov peev txheej ntawm offset thiab digital luam thev naus laus zis los muab cov kev daws teeb meem ntau yam thiab hloov tau yooj yim. Cov tshuab no tau tsim los tswj cov txheej txheem offset thiab digital luam ntawv, tso cai rau kev sib xyaw ua ke thiab ua haujlwm tau zoo. Lawv yog cov zoo tagnrho rau cov chaw luam ntawv tab tom nrhiav kom nthuav lawv lub peev xwm thiab ua tau raws li ntau yam kev cai luam ntawv.

Hybrid offset luam ntawv tshuab muab cov txiaj ntsig ntawm kev luam ntawv offset, xws li kev tsim cov xim zoo nkauj thiab cov nqi tsim nyog, nrog rau qhov zoo ntawm cov luam ntawv digital, xws li cov ntawv luam tawm luv luv thiab cov ntaub ntawv sib txawv. Lawv tau nruab nrog kev tswj hwm qib siab thiab automation nta kom ua tiav cov khoom lag luam thiab txo qis qis. Lawv tsim nyog rau ntau hom kev luam ntawv, suav nrog kev lag luam, ntim khoom, thiab cov haujlwm luam ntawv tus kheej.

5. UV offset tshuab luam ntawv:

UV offset tshuab luam ntawv siv ultraviolet (UV) kho tshuab kom qhuav tam sim ntawd thiab kho cov number case thaum lub sij hawm luam ntawv, tso cai rau kom ceev ceev ceev thiab cov xim zoo nkauj. Cov tshuab no zoo tagnrho rau kev luam ntawv ntawm cov khoom tsis nqus dej thiab tshwj xeeb substrates, nrog rau cov ntawv thov uas xav tau lub sijhawm hloov pauv sai thiab ua tiav zoo.

UV offset tshuab luam ntawv muab cov ntawv luam tawm zoo, nthuav dav, thiab cov xim zoo ib yam, ua rau lawv haum rau ntau yam tshwj xeeb thiab ntim cov ntawv luam tawm. Lawv tau nruab nrog cov txheej txheem UV kho siab heev thiab cov kev xaiv hauv kab tiav los txhim kho cov ntawv luam tawm thiab ntxiv tus nqi rau cov ntawv luam tawm kawg. Lawv kuj yog tus phooj ywg ib puag ncig, vim tias lawv txo qis kev siv hluav taws xob thiab pov tseg piv rau cov txheej txheem luam ntawv offset.

Zuag qhia tag nrho, ntau yam ntawm cov tshuab luam ntawv offset muaj ntau yam thiab muaj txiaj ntsig luam ntawv daws teeb meem kom tau raws li kev xav tau luam ntawv sib txawv thiab kev siv. Txawm hais tias rau kev luam ntawv me lossis loj, kev lag luam lossis kev luam ntawv tshwj xeeb, cov tshuab luam ntawv offset muab cov txiaj ntsig zoo thiab zoo sib xws.

Qhov zoo ntawm offset tshuab luam ntawv

Offset tshuab luam ntawv muaj ntau yam zoo uas ua rau lawv muaj kev xaiv nrov rau ntau hom kev luam ntawv. Cov hauv qab no yog qee qhov zoo ntawm kev siv cov tshuab luam ntawv offset:

- High quality prints:

Offset tshuab luam ntawv muaj peev xwm tsim tau cov ntawv luam tawm zoo nrog rau kev sau npe meej, nthuav dav, thiab muaj xim zoo nkauj. Cov txheej txheem luam tawm offset tso cai rau kev hloov pauv tus cwj mem zoo ib yam, ua rau cov ntawv luam tawm zoo heev thiab kev ua tiav. Txawm hais tias rau kev lag luam, ntim khoom, lossis cov haujlwm tshwj xeeb luam ntawv, cov tshuab luam ntawv offset xa cov txiaj ntsig zoo tshaj plaws.

- Tus nqi tsim khoom:

Offset tshuab luam ntawv yog tus nqi tsim nyog rau kev luam ntawv loj, vim lawv muab cov khoom tsim tau zoo thiab cov nqi sib tw. Nrog lub peev xwm los lis ntau yam ntawm cov ntawv ntau thiab tsawg, nrog rau ntau yam ntaub ntawv luam ntawv, offset luam ntawv tshuab muab ntau yam thiab yooj yim hauv kev tsim khoom. Lawv kuj muab cov txiaj ntsig zoo sib xws thiab txhim khu kev luam ntawv, txo cov khib nyiab thiab rov luam dua.

- Ntau yam peev xwm luam ntawv:

Offset tshuab luam ntawv muaj ntau yam thiab tuaj yeem ua raws li kev xav tau luam ntawv sib txawv thiab kev siv. Txawm hais tias rau ib qho xim lossis ntau xim luam ntawv, tus qauv lossis cov txheej txheem tshwj xeeb, cov tshuab luam ntawv offset muab qhov yooj yim kom tau raws li ntau yam kev xav tau. Lawv ua tau zoo rau kev lag luam, ntim khoom, thiab kev tshaj tawm cov ntawv luam tawm, nrog rau cov ntawv luam tawm tus kheej thiab raws li qhov xav tau.

- Sustainable thiab eco-phooj ywg:

Offset tshuab luam ntawv yog ib puag ncig tus phooj ywg, raws li lawv txo cov khib nyiab thiab tshuaj siv piv rau lwm txoj kev luam ntawv. Cov txheej txheem luam ntawv offset siv cov zaub raws li inks thiab qis-VOC (volatile organic compound) cov kuab tshuaj, txo cov kev cuam tshuam ib puag ncig ntawm kev luam ntawv. Tsis tas li ntawd, cov khoom tsim tau zoo ntawm cov tshuab luam ntawv offset ua rau muaj kev ruaj ntseg thiab lub luag haujlwm luam ntawv.

- Kev tsim khoom sib xws thiab txhim khu kev qha:

Offset tshuab luam ntawv muab cov khoom tsim tau zoo ib yam thiab txhim khu kev qha, kom ntseeg tau tias txhua qhov luam tawm yog qhov zoo thiab ua tau raws li qhov xav tau tshwj xeeb. Cov txheej txheem luam ntawv offset tso cai rau cov xim sib xws, kev sau npe kom raug, thiab cov duab ntse tsim tawm, ua rau muaj txiaj ntsig zoo thiab muaj txiaj ntsig luam ntawv. Txawm hais tias luv luv lossis ntev luam ntawv sau, offset tshuab luam ntawv xa cov khoom tsim tau zoo.

Hauv cov ntsiab lus, offset tshuab luam ntawv muab ntau qhov zoo uas ua rau lawv nyiam xaiv rau ntau qhov haujlwm luam ntawv. Nrog cov ntawv luam tawm zoo, cov nqi tsim nyog, muaj peev xwm ua tau ntau yam, kev coj ua kom ruaj khov, thiab cov txiaj ntsig zoo, cov tshuab luam ntawv offset yog cov khoom muaj txiaj ntsig zoo rau cov chaw luam ntawv thiab cov lag luam nrhiav kom tau raws li lawv cov kev cai luam ntawv.

Hauv kev xaus, offset tshuab luam ntawv yog ib feem tseem ceeb ntawm kev lag luam luam ntawv, muab ntau yam, zoo, thiab cov nqi luam ntawv daws teeb meem. Nrog rau lawv cov khoom sib txawv, cov qauv kev ua haujlwm, hom, thiab qhov zoo, cov tshuab luam ntawv offset ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntawv tshaj lij thiab zoo ib yam rau ntau yam kev siv. Txawm hais tias rau kev lag luam, ntim khoom, kev tshaj tawm, lossis cov haujlwm luam ntawv tus kheej, cov tshuab luam ntawv offset xa cov txiaj ntsig tshwj xeeb thiab pab txhawb rau kev lag luam luam tawm kom ruaj khov thiab muaj lub luag haujlwm. Raws li thev naus laus zis txuas ntxiv mus, cov tshuab luam ntawv offset yuav txuas ntxiv txhim kho thiab hloov kho kom tau raws li cov kev xav tau hloov pauv ntawm kev lag luam luam ntawv, muab cov kev daws teeb meem zoo thiab txhim khu kev qha rau xyoo tom ntej.