Kev haus dej cawv tsis muaj haus
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Cov kev ua haujlwm ntawm qhov tua wetting yog hloov cov dej-raws cov dej rau lub phaj luam tawm los tawm tsam tsis yog daim duab ntawm cov ntawv phaj. Isopropanol (IPA) yog qhov feem ntau siv cov additive hauv cov ciav dej daws. IPA txo cov qhov nro ntawm cov kua dampening thiab ua rau kom cov kua xau ntawm lub dampening viscosity; IPA volatilization kuj ua haujlwm ua "txias". Cov ciav dej haus cawv muaj peev xwm ua kom muaj kev lag luam ntau tshaj "xoob", thiab muaj peev xwm them nyiaj rau ntau yam teeb meem tshwm sim los ntawm kev siv luam yeeb tsis tu ncua, kev tu xyuas tsis zoo, thiab tsis muaj lub peev xwm ntawm tus neeg teb xov tooj.
Thawj qhov laj thawj rau kev tshem tawm ntawm cov ciav dej ciav yog ib qho teeb meem loj ntawm IPA khoom; hnub no tus tsav tsheb yog ib puag ncig, kev noj qab haus huv thiab kev nyab xeeb. Nws sau tsis muaj cawv (yog, nws yuav tsum yog IPA-dawb), tus number case adjustment yog yooj yim, cov luam ntawv zoo zoo, cov dots muaj tseeb, thiab tus number case yog tsis tshua muaj emulsified. Nyob rau cov hnub qub thaum tsis haus dej cawv, cov luam ntawv tau nrhiav cov khoom uas muaj IPA yam ntxwv thiab yuav hloov IPA. Lawv tuaj yeem raug xa mus rau thawj lub cim ntawm "cawv hloov chaw." Niaj hnub no, ob tiam neeg tau dhau los ua ib tug qauv zoo tshaj plaws uas tsim nyog tau txais "unleavened". Raws li siv los ua "haus dej cawv tsis muaj haus" tuaj yeem xa mus rau ib qho kev ua tsis haum (IPA) thiab ib lub cawv (IPA) lwm txoj kev.
Nyob rau hauv cov nqe lus ntawm cov nyhuv rau cov viscosity, qhov chaw nro, pH thiab kev sib txuam ntawm cov ciav kua, lwm txoj haus cawv tau raug thov rau IPA. Feem ntau siv cawv hloov khoom siv feem ntau ntawm ib lossis ntau cov tshuaj ntawm ethylene glycol thiab glycol ether tsev neeg thiab lwm yam tshuaj ntxiv. Pib cov khoom no tsuas txo tus nqi ntawm IPA; tam sim no lawv muaj cuab kav hloov tag nrho cov IPA hauv qhov ciav hlau thiab muaj kev ua haujlwm zoo dua. Unfermented cov khoom tsis universal, yog li cov tshuab luam ntawv yuav tsum ua hauj lwm ze nrog cov chaw muag khoom kom tau qhov zoo tshaj plaws dampening kua.
Nws tau hais tias web luam tshuab manufacturers yuav siv cov khoom ib feem ntawm cov dej cawv tsis zoo, thaum cov ntawv sau ntawv nyiam nyiam siv cov khoom siv cuaj caum tsis zoo. Hauv kev sib piv, cov khoom siv dej cawv tsis zoo muaj ntau dua. Cuam tshuam los ntawm "kev kaw lus" ntawm txoj kev xav, lub ntsiab ntawm cov tswv yim ntawm lub ntiaj teb feem ntau muaj tag nrho cov tshuaj uas yuav tsum tau ntxiv. Qhov kev dampening no feem ntau pom tias yog feem ntau txhim khu kev qha. Nws yog tsim nyog sau cia tias cov ntsiab lus ntawm cawv hloov chaw nyob hauv qhov ciav kua yog ntau tsawg dua IPA. Tshawb xyuas qhov kev kawm ntawm dampening daws, feem ntau pib los ntawm ob peb yam tom ntej:
1. Ua kom pom tseeb
Viscosity yog qhov ntsuas ntawm cov kua xau kom khiav. Qhov concentration ntawm cawv hloov nyob rau hauv lub dampening daws yog ntau tsawg dua li ntawm IPA, yog li cawv hloov tau me ntsis ntxim rau cov viscosity ntawm dampening kua. Vim tias tsis muaj cov kua dej cawv uas siv cov tshuaj cawv tsis zoo, hauv kev nruam nquag, hu rau hom kab ntub dej, cov tshuaj tsis haum ntawm cov dej los ntawm cov menyuam los yog tus ntsuas cov me me, uas yuav tsum tau nce cov kev ceev ntawm lub npoo dampening kom paub meej moisturizing Lub pob ntawm lub phaj daws. Ib txoj kev pab kom them nyiaj rau viscosity poob yog kom txias qhov chaw tov, tab sis qhov txias dua ntawm lub qhov dej txhuam kuj muaj qhov tsis zoo.
2. Qhov nro sab nruj
Yooj zom zom ntawm cov phaj thiab tsim muaj dej yeeb yaj kiab yog ob txoj cai tseem ceeb rau cov chaw ntuag, uas feem ntau txiav txim siab los ntawm qhov chaw nro ntawm cov ciav dej. Lub nrawm nrawm ntawm ntshiab dej yog 72 dynes / cm. Nyob rau hauv kev daws teeb meem, qhov concentration ntawm (10 ~ 25)% cawv muaj peev xwm txo qhov nrawm ntawm dampening tov rau (35 ~ 45) dynes / cm, kom lub dampening tshuaj yuav ua tau sai sai hauv daim duab uas ua tas mus li. Lub koom haum pab tswv yim ntawm lub phaj raug qhib. Kev haus cawv tsis muaj cawv siv daws cov nqaij tawv thiab cov kuab tshuaj kom txo tau qhov nro qhov dav. Vim nws txoj kev ua qauv sawv cev ntawm cov kabmob ncov qaumteb, cov surfactant yuav zwm rau ntawm qhov interface. Thaum cov xovxwm khiav ntawm kev kub ceev, qhov interface hloov sai thiab cov surfactant yuav tsum tau pauv sai sai rau compensate rau tus tshiab interface. Tus nqi ntawm surfactant nyob rau hauv lub qhov ciav kua yog qhov tseem ceeb thaum lub sij hawm luam ntawv, thiab thaum twg tus nqi siab dhau, tus number case yog emulsified.
Nws feem ntau ntseeg tias dampening daws nrog tsis tshua muaj siab nro yog tsim rau kev kub ceev printing, tab sis kuj muaj cov lus ceeb toom ntawm qhov tsis tooj. Hnub no tus cwj pwm hloov tau ua tiav tib lub qhov nro tsis nruj xws li IPA.
3. Duab teeb ci thiab ci ntsa iab
Cawv yuav ua rau tus cwj mem muaj kua xaim thiab ua rau tus cwj pwm xaj thiab cuam tshuam rau xim. Nyob rau tib txoj kev, tus number case ntawm lub luam ntawv xovxwm yuav tsum tuav lub plhaub taum dub dua los ua kom tau xim. Thaum siv lub cawv hloov chaw, tus cwj mem yuav tsis muab ntxig rau qhov tseeb ntawm qhov tseeb, yog li tus lej ntawm tus cwj pwm siv thiab cov dej siv tsawg tsawg, thiab qhov tshwm sim yog qhov loj me me thiab cov dots clearer.
4. Adhesion ntawm tug ciav kua thiab cwj pwm kev kos duab
Cov ntaub ntawv yuav tsum muaj peev xwm muaj peev xwm ua kom pom ib qho txiaj ntsig ntawm cov ciav dej txhawm rau tsim ib qho emulsion. Nyob rau hauv tej yam zoo tagnrho, qhov kev txhim kho ntawm qhov chaw mos yog yoog tawm ntawm tus lej thiab ncav cuag kev ua haujlwm rau kev khiav haujlwm. Raws li kev khiav hauj lwm rau kev khiav hauj lwm, me me dampening mob diffuse rau tus number case, tsim cov "dej-hauv-roj" hom emulsion hauv zos. Lub siab ntawm lub phaj thiab daim pam yuav pab cov emulsification tshwm sim. Tus nqi ntawm cov ciav dej nyob hauv lub emulsion tuaj yeem cuam tshuam qhov ntom, ziab, tack, viscosity, thiab cwj mem kua hloov ntawm cov cwj mem. Ntau tshaj tawm emulsification txav tus number case-and-wash, ua rau tus number case los ua thinner thiab cov duab ua tsis tiav, ua rau "daus" ntawm daim ntawv.
5. Kev ua thiab ua pH
Kev ua yeeb yam yog ib qho kev ntsuas ntawm kev sib tham ntawm cov khoom; pH yog qhov nyiaj hydrogen ion concentration hauv dej. Nws yog ib qho tseem ceeb uas kev sib txuas lus thiab pH nyob twj ywm rau qhov kev sib tov kua.
Kev ua dej haus huv yog ze rau 0 micrometers, uas yog ib qho zoo tshaj plaws ntawm hluav taws xob. Kev ua dej haus yog qhov sib luag ntawm cov ions hauv dej, yog li ntawd kev siv kuj yog siv los ntsuas kev ntsuas dej. Qhov kev sib txuas ntawm cov ciav dej txhuav yuav tsum raug ntsuas ua ntej siv cov xovxwm. Kev hloov txawv txav ntawm kev coj ua los ntawm kev qias neeg, thiab thaum lub sij hawm luam ntawv, txoj kev ua rau lub cev ntws los qis dua qub yog ib qho tsis zoo vim muaj cov kabmob thiab ntawv. Raws li lub GATF, qhov hluav taws xob raug ntsuas txhua 4 teev thaum lub sij hawm luam ntawv, thiab txhua qhov chaw tshiab ntawm cov ciav dej los kuj yuav tsum ntsuas cov kev coj ua. Thaum cov dej tsis zoo, txoj kev xyaum ua haujlwm hloov tom qab filling dej yuav tsum tsawg dua 50 micrometers. Yog qhov kev hloov pauv ntawm 200 micrometers, nws yuav tsum raug ua ntej siv.
Thaum ntsuas kev ua, qhov pH feem ntau tau ntsuas ib zaug ib zaug. Lub pH ntawm kev daws teeb meem yuav tsum feem ntau yog 4.4 mus rau 5.0. Yog tias tus nqi p pev dhau (siab tshaj 5.5), lub phaj yuav qias neeg; Yog hais tias tus pH tsawg dhau (qis dua 3.5), daim phaj yuav ua npog, tus cwj mem yuav muab emulsified hauv dampening tov, thiab tus cuav quav rau tus kheej yuav tsum deinked. Lub sij hawm ziab ntawm tus number case txheej yog lengthened. Kev siv tshuaj tua kab (high-quality printing), pH ntawm dampening tov siv yuav tsum tau ceev ceev, txwv tsis pub yuav muaj teeb meem, xws li muab tshuaj (muab ntim khoom (ink membrane) tso rau hauv cov ntawv xov xwm (luam ntawv ntawm lub phaj) winning (khawm uas txuas rau daim duab ntawm lub phaj ntawv luam), ntxiv rau cov menyuam yaus (deer roller tsis koom rau tus number case), los yog tus cwj mem tsis ruaj ntseg hauv daim ntawv.
Yuav kom ntseeg tau tus pH ruaj khov, tag nrho cov dampening tsis yog buffered. Thaum lub concentration ntawm dampening kua hloov, pH tus nqi yuav tsis hloov ntau, tab sis nws txoj kev ua txuas mus ntxiv. Yog li, qhov kev kuaj xyuas yog tsim nyog tshaj pH los txiav txim qhov kev hloov hauv cov khib nyiab hauv cov tshuaj. Ib zaug, them nyiaj rau cov kev hloov me me hauv pH kom tsis txhob muaj ntau yam teeb meem luam tawm.
6. Muaj ob lub hom phiaj siv cov ciav dej haus cawv dawb rau cov cawv hloov chaw:
Ib qho yog siv cov khoom zoo los ua cov khoom zoo, thiab lwm txoj kev xaiv thiab siv cov ciav hlau uas tsis muaj qhov ciav hlau uas ua tau zoo. Kev luam yog ib txoj kev sib tham, thiab kev lag luam tsis tuaj yeem xav kom hloov ib qho ntawm cov kev sib txuas (xws li tshem tawm cov dej cawv) uas tsis tas hloov kho.
Thaum siv dampening tshuaj tshiab (lossis lwm yam khoom siv tshiab), tus neeg teb xov tooj tuaj yeem xeem nws ua ntej thov. Lub tshuab luam tawm nws tus kheej yog qhov zoo tshaj plaws. Nyob rau hauv kev tswjhwm (xws li, lwm yam kev mob nyob ruaj khov tshwj tsis yog kev xeem), kev kuaj hauv chav luam ntawv yuav muab cov ntaub ntawv tiav los daws cov teeb meem ntawm kev luam ntawv. Thaum kuaj, nws yog qhov zoo tshaj plaws ua raws li cov khw muag khoom. Tsis pub dhau lub sij hawm ntev ntawm cov lus qhia, feem ntau pib ntawm qhov kawg, thiab tag nrho cov ntaub ntawv tseem ceeb ntawm txoj kev xeem yuav tsum tau txais kev cawmdim.
7. Kev hloov kho txhua yam
Cov qauv kev tswj, kev tswj hwm, kev xuas hluav taws xob, kev sib txuas lus, thiab lwm yam ntawm ntau hom ntawv luam tawm tsis raug siv, thiab txoj kev hloov kho yog nyuaj rau kev sib koom ua ke. Kev siv cov ciav dej dawb tsis muaj cov cuab yeej siv ntau tshaj li cov IPA qhov ciav qhov daws, yog li muaj qee qhov teeb meem uas yuav tsum tau nrog lub IPA ciav dej daws. Nws raug pom zoo los txo kev siv cawv rau ib ncig ntawm 8%. Yog tias tseem muaj teebmeem, nws txhais tau tias IPA npog tau qee cov teeb meem tseem ceeb.
Lub ntsiab tseem ceeb ntawm kev ruaj ntseg ntawm unleavened printing yog kom xaiv qhov nyuaj ntawm cov dej ntawm cov taub hau thiab kho lub txiv mis. Thaum siv cov dej cawv tsis muaj kab mob, lub zog ntawm tus pas ntsuas ntsuas me ntsis qis dua thaum siv cawv ciav dej. Feem ntau, qhov nyuaj ntawm qhov kev sib tw ntawm qhov ntsuas yog 25 (30 mus rau 30) Ntug, uas yuav ua nyuab dua tom qab siv. Thaum siv cov ciav dej tsis pub haus cawv, nws pom zoo kom txo qhov nyuaj ntawm qhov ntsuas ntawm qhov ntsuas (8 mus rau 22) Shore, vim hais tias cov menyuam yaus qhov muag tsis yooj yim rau nqus dej, thiab lub txiv neeb ntawm qhov ntsuas thiab qhov chrome nce tsis tau nce lub siab. Ua tus neeg teb xov tooj txoj kev kho kom haum ntau ntau. Lwm qhov teeb meem tau ntsib thaum siv cov txheej txheem ntsuas kev ntsuas qis yog tsim ntawm cov kab laug sab (los yog cov caij dej) ntawm txoj kev pavilion thiab kev ntsuas qis, thiab qhov tshwm sim ntawm cov ntawv luam hauv lub lim piam. Kev siv ntawm ib qho kev ntsuas ntawm qhov muag muag nce lub nip, feem ntau flattening dej film on chrome roll. Lwm cov laj thawj rau kev tsim cov dej tua kab yog qhov txawv ntawm kev ceev ntawm ob rab qaum.
Kev siv cov av cawv ciav dej kuj yuav tsum tau kho kom haum ntawm qhov nruab nrab ntawm cov menyuam thiab cov thawv ntub. Thaum siv IPA ciav kua, qhov sib txawv feem ntau yog (8 ~ 10) mm, thiab thaum siv cov ciav dej dawb tsis muaj cawv, lub txiv mis yog txo mus rau (3 ~ 5) hli. Hauv ib qho kev ntaus IPA ntub, qhov kev ntsuas thiab cov chrome rau cov menyuam muaj lub zog los ntawm nyias muaj nyias lub cev, thaum lub phom khawm tsav yog tsav los ntawm lub tshuab luam ntawv. Yog hais tias cov phaj cuav quav hlau pib pib tsav lub chrome rau cov menyuam, qhov kev ceev ntawm chrome cov menyuam tuaj yeem ua rau thiab qhov kev tswj ntawm cov xias tas lawm. Thaum tus tub ntxhais hluas ntawm lub qhov dej txhaws ceev tshaj qhov qub, dej tuaj yeem sau rau ob hnub ntawm tus menyuam yaus, ua rau nws tawg; kev ceev ntawm cov menyuam yaus sai dhau, thiab lub cev ntawm lub tshuab xev yog qhov tsis zoo, ua rau tsis ua haujlwm thiab tsis ua haujlwm rau lub cev.
Qhov kev hloov ntawm qhov kev ntsuas ntawm qhov ntsuas yog ib qhov teeb meem tseem ceeb. Txhawm rau kom ntsuas dej ciav tsis muaj ciav hlau, nws yog feem ntau tsim nyog yuav tsum muaj kev ceev dua ntawm kev sib tw, thiab cov kev mob siab yuav ua rau cov neeg tsis muaj zog thiab tsis muaj kev tswj hwm.
Kev ntsuas ntawm qee qhov kev ntsuas yog tsim los ua cov khoom sib txuam thiaj li faib cov tshuaj dampening daws hauv cov phiaj. Qee cov dlej dlej dlaws dlaws zoo yog siv cov dlaim phom rua suavdawg. Yog hais tias qhov nruab nrab ntawm lub phaj yob yog heev ntub thiab qhov xaus yog dhau lawm, nws yog feem ntau tsim nyog yuav tau kho qhov yob ntsuas; Yog hais tias tsis muaj txaus dampening daws nyob rau hauv qhov chaw ntawm lub phaj yob, tus metering yob yuav tsum parallel rau chrome yob. Qhov zoo tshaj plaws lub kaum rau qhov txawv txav hloov nws txawv nrog rau cawv hloov chaw siv thiab yuav tsum tau txiav txim siab. Los ntawm kev soj xyuas cov kab uas ua khov ua nyob rau ntawm qhov khoov ntawm qhov phaj, nws yuav txiav txim siab seb tus lej nyiaj seem zoo, thiab lub tshuab luam ntawv downwell raug soj ntsuam rau txoj kab qias neeg tom qab tshuab luam ntawv nkag mus rau hauv lub xeev ruaj khov. Thaum lub leb tshuav yog zoo tagnrho, zoo nkauj thiab zoo li txoj kab qias neeg yog tsim ntawm lub dav hlau ntawv. Yog tias lub phaj no qhuav dhau ib qho, qhov dav ntawm txoj kab qis yuav nce, thiab yog nws ntub dhau lawm, yuav raug muab tshem tawm qias neeg.
8. Cov teeb meem tau tshwm sim
Hloov mus rau haus dej cawv tsis muaj zog txaus yuav muaj feem ntsib qee yam teeb meem uas tsis tau pom dua ua ntej. Cov teeb meem tshwm sim muaj xws li:
Metering rau cov tub ntxhais kev quav dej quav cawv
Cov cwj pwm hloov dej ua rau tus pas ntsuas ntawm tus cwj pwm ntxig rau tus lej. Tus cwj mem xiav yog thawj zaug ua rau lub chrome muab thiab tom qab ntawd dhau mus rau qhov ntsuas. Txoj kev daws teeb meem yog hu rau lub tshuab luam ntawv los yog siv ib qho kev sib xyaw kom haum sib xyaw ua ke rau cov roj yias. Lub hydrophilicity ntawm qhov kev ntsuas qis yog tswj los ntawm daim ntawv thov ntawm ib cov pos hniav los yog txheej. Qee cov koom haum ntseeg tau hais tias qhov kev sib tw ntawm cov ntsuas ntawm qhov ntsuas yog vim muaj qhov sib kis ntawm qhov chaw sib tov, raws li tus ntsuas cov peev xwm yuav siv los ua kom muaj kev sib to taub zoo yog tias nws tsuas yog 1% tus ntxhua khaub ncaws.
Ridge dej qauv
Raws li tau piav saum toj no, thaum siv dej cawv hloov chaw, yog tias qhov nyuaj ntawm txoj hlua ntsuas yog 25 (30 mus rau 30) Ntug dej, cov cim dej cij tuaj yeem tshwm sim, thiab yog li qhov zoo ntawm cov luam tau raug cuam tshuam. Txoj kev daws teeb meem yog siv lub ntsuas me me. Tseem muaj qee cov lag luam tawm tswv yim hais tias lub qhov ntev ntawm cov nplaim hluavtaws ntsuas cov yob yog cov roj ntau dua. Nws yog ib qho tseem ceeb uas yuav tsum tswj kom muaj qhov tseeb ntawm kev txiav txim siab rau txoj kev dampening tov concentration, tshwj xeeb tshaj yog thaum pib formulated. Feem ntau cov cwj pwm hloov cwj pwm yuav maj mam tawm los ntawm lub phaj tov. Txij li thaum tsis muaj ib txoj hau kev los txiav txim siab ntawm cov cawv cwj pwm hloov, cov tshuaj tsw dawb yuav tsum hloov tsawg kawg ib zaug ib lub lim tiam. Cua txias qhov chaw muaj dej txias Ntau qhov chaw txias tseem ceeb heev thaum ua qhov ceev ntawm lub tshuab luam ntawv, tab sis tus neeg teb xov tooj tej zaum kuj overcools cov ciav dej. Qhov no yuav ua rau kom muaj tus lej ntawm qhov xauv npo thiab ua teeb meem nrog daim ntawv plucking thiab stacking. Qhov pauv ntawm qhov kub yog nyob ntawm thawj zaug ntawm qhov kev ua haujlwm ntawm qhov kev ua haujlwm ntawm kev luam ntawv, thaum lub cij poom kua tub yees yuav tsum muab kho rau (10 ~ 13) ° C. Los yog raws li kev pom zoo los ntawm tus neeg muag khoom.
Organic yug me nyuam
Yog tias cov xuab zeb muaj nyob rau hauv qhov chaw txhuam cov kab mob, yuav tsum tau ntxuav cov dej ntshiab tsawg kawg ib zaug ib lim piam, nrog rau cov thoob thoob. Nws tau muab yaug nrog dej hauv nruab cev; lub pwm remover kuj siv los tiv thaiv kev loj hlob ntawm cov organic teeb meem; nws tseem siv tau los yaug lub nrig nrog ib qho kev tov nrog kua (1 ~ 5)% lub tshuaj ua haujlwm thaum lub lim tiam ntawm kev ua haujlwm, tab sis ua ntej rov qab rau dampening solution Nco ntsoov tias lub plig tsev yog huv thiab tsis muaj tshuaj ntxuav tais diav.
Ink cov menyuam deinking
Cov duav deinking tuaj yeem tshwm sim nrog ntau hom cawv tsis muaj dej haus tsis muaj kev tu vaj tse zoo. Lub sijhawm no, txoj kev uas muaj tooj hlau plating tus number case pub rau cov menyuam yaus muaj peev xwm ua ntawv thov rau lub tshuab luam ntawv qub uas muaj lub tshuab xoom yas hlau. Yog tias qhov teeb meem no tshwm sim ntawm cov xovxwm uas muaj cov nylon los yog polytetrafluoroethylene coated yob, nws yog ib qho ua kom tshem tus cwj mem nrog ib qho hnyav thiab ces yaug tus cwj mem nrog cov dej kub.
Foaming
Thaum lub dampening tov yog foaming, tus npuas txeem yuav txav mus rau ntawm lub npoo ntawm qhov ntsuas thiab txaws mus rau hauv daim ntawv; Cov npuas dej tseem yuav thaiv qhov dej ntws mus rau ntawm cov thawv rau khoom rov qab. IPA nws tus kheej yog tus zoo ntxhib ntxoo, thiab thaum siv cov ciav dej dawb tsis muaj cawv, yuav tsum siv tsawg tus nqi ntawm defoamer, tab sis nws yuav tsum raug sau tseg tias kev siv lub tshuab ntxhua lub cav kom qhuav yuav tsum tsis txhob siv cov tshuaj silicone defoamer, nws hu tau mus rau "tshuaj lom" muaj nqi catalytic beds. Tsis tas li ntawd, muaj qee cov khoom siv kho kom tsis txhob muaj kab mob.
Muab tshuaj txhuam
Yog tias cov cawv hloov tus cwj pwm tsawg dhau lawm, lub dampening txaus, thiab qee zaum qhov nplua ntawm lub phaj yuav tau muab pov tseg. Tab sis lwm cov teeb meem kuj tseem tuaj yeem ua rau qhov tshwm sim ntawm muab tshuaj txhuam.
Tsuj zeej ntawm qhov kev ntsuas tus kheej
Qee zaum, alkalizing tshwm sim nyob rau ntawm cov menyuam qhov ntsuas. Cov nyiaj tso rau ntawm tus ntsuas ntawm qhov ntsuas yuav yog cov calcium uas nyob hauv daim ntawv, los yog nws yuav ua rau ntawm cov ntsev los sis cov pos hniav hauv lub qhov ciav dej thaum lub pH muaj siab heev. Cov dawb precipitates ua rau kev ntsuas rolls tsaug. Kev daws qhov teebmeem no yog tawm ntawm cov menyuam tawm ntawm lub chrome, siv cov tshuaj tsis haum thiab muab tso rau. Daim ntawv fluff los ntawm nyias tus lej txheej
Qee cov cwj hloov cawv yuav tsum muaj qis dua tus cwj pwm tshuav nyiaj, thiab lub thickness ntawm tus number case txheej yog txo kom 0.15 μm, uas yog deviates ntawm qhov qub (02 mus rau 0.4) μm. Lub plhaub taum plawv txheej muaj ib lub hwjchim loj rau ntawm daim ntawv, thiab daim ntawv tuaj yeem tuaj. Txawm li cas los xij, qee cov ciav dej tsis pub haus cawv tsis tshua muaj kev ua rau daim ntawv fluffing thaum tus number case yog nyias.
Feem ntau, zoo hauv lub xeev thiab kev sib koom tes yog qhov tseem ceeb rau kev siv dej cawv tsis tiav. Nws yog ib qho tseem ceeb kom ua tib zoo xav txog cov khoom siv thoob plaws hauv tshuab luam ntawv thiab mob siab khov kho cov khw muag khoom txoj cai.