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Cov Khoom Siv Khoom Ntim: Nkag siab txog tus yam ntxwv ntawm Ntawv, Txhim Kho Cov Ntim Ntim thiab Luam Ntawv

Abstract: Ntawv yog cov khoom siv feem ntau siv rau kev ntim ntawv luam tawm. Nws lub cev lub cev muaj qhov cuam tshuam ncaj qha lossis tsis ncaj rau ntawm kev luam ntawv. Kho cov kev nkag siab thiab ua kom zoo ntawm cov ntawv, raws li cov yam ntxwv ntawm cov khoom, siv cov ntawv tsim nyog los txhim kho cov khoom luam ntawv, yuav ua lub luag haujlwm zoo hauv kev tshaj tawm. Daim ntawv no yuav qhia txog cov yam ntxwv ntawm daim ntawv cuam tshuam cov ntsiab lus, rau cov phooj ywg siv:

Luam ntawv ntawv

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Txhua yam ntawm ntau hom ntawv luam ntawv uas muaj cov khoom tshwj xeeb, nyob ntawm txoj kev luam ntawv.

Ntawv tshwj xeeb uas siv rau kev luam ntawv. Raws li kev siv tuaj yeem faib ua: ntawv xov xwm, phau ntawv thiab daim ntawv sau cov ntawv, cov ntawv npog, kev nyab xeeb ntawv thiab lwm yam. Raws li txoj kev luam ntawv sib txawv tuaj yeem muab faib ua ntawv xovxwm ntawv luam ntawv, gravure luam ntawv, ntawv offset luam ntawv thiab lwm yam.

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1 Quantitative

Nws hais txog qhov hnyav ntawm daim ntawv rau ib cheeb tsam, qhia los ntawm g / ㎡, uas yog, lub gram hnyav ntawm 1 square meter daim ntawv. Cov ntawv qib lus ntau txiav txim siab lub cev lub zog ntawm daim ntawv, xws li lub zog tensile, kua muag qib, nruj, tawv tawv thiab tuab. Qhov no kuj yog qhov laj thawj tseem ceeb vim li cas lub tshuab luam ntawv siab ceev tsis zoo rau qhov ntau ntawm cov ntawv hauv qab 35g / ㎡, yog li ntawd nws yooj yim kom tshwm li daim ntawv tsis txaus siab, overprint tsis pub thiab lwm yam laj thawj. Yog li ntawd, raws li cov yam ntxwv ntawm cov khoom siv, qhov ntau qhov ntau ntawm cov luam ntawv ntu kom haum rau nws qhov kev ua tau zoo tuaj yeem ua tau, thiaj li ua kom zoo dua qub kev noj, txhim kho cov khoom zoo thiab ua kom zoo dua ntawm cov khoom siv.

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2 Thickness

Puas yog cov tuab tuab ntawm daim ntawv, chav tsev ntawm kev ntsuas feem ntau qhia hauv μm lossis hli. Thickness thiab quantitative thiab compactness muaj kev sib raug zoo heev, feem ntau, daim ntawv tuab yog qhov loj, nws qhov ntau sib haum muaj ntau, tab sis kev sib raug zoo ntawm ob yog tsis meej. Qee cov ntawv, txawm hais tias nyias, sib npaug lossis ntau dua li cov tuab. Qhov no qhia tau tias nruj ntawm daim ntawv fiber ntau qauv txiav txim qhov ntau thiab tuab ntawm daim ntawv. Txij li qhov pom ntawm kev luam ntawv thiab ntim zoo, cov tuab tuab ntawm daim ntawv yog qhov tseem ceeb heev. Txwv tsis pub, nws yuav cuam tshuam rau daim ntawv rov ua haujlwm tsis siv neeg, luam ntawv siab thiab tus cwj mem zoo. Yog tias koj siv cov tuab sib txawv ntawm cov ntawv luam ntawv, yuav ua rau cov phau ntawv tiav ua cov thickness txawv.

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3 Cov Ntu

Nws hais txog qhov hnyav ntawm daim ntawv ib cubic centimeter, qhia hauv g / C㎡. Qhov kev nruj ntawm daim ntawv yog suav los ntawm qhov ntau thiab tuab raws li cov qauv hauv qab no: D = G / D × 1000, qhov twg: G sawv cev kom muaj nuj nqis ntawm daim ntawv; D yog cov ntawv tuab tuab. Kev nruj nruj yog qhov ntsuas ntawm qhov ntom ntawm daim ntawv qauv, yog tias nruj dhau, ntawv tawg brittle, opacity thiab number case kev nqus yuav raug txo kom tsawg, kev luam ntawv tsis yooj yim qhuav, thiab yooj yim los tsim cov nplaum qias neeg hauv qab tshwm sim. Yog li no, thaum luam ntawv daim ntawv nrog lub siab ntom ntom, yuav tsum tau them rau qhov kev tswj hwm tus nqi tsim nyog ntawm tus number case txheej, thiab kev xaiv ntawm kev ziab thiab tus number case sib xws.

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4 Lub Zog

Yog qhov kev ua tau zoo ntawm daim ntawv tsis kam mus rau lwm qhov khoom xoom, tab sis kuj yog cov ntawv fiber ntau cov ntaub qhwv lub zog. Daim ntawv hardness yog tsawg, tuaj yeem tau txais ntau lub cim tseeb. Cov txheej txheem ntawv luam ntawv feem ntau haum rau luam ntawv nrog ntawv nrog tsis tshua tawv, kom luam ntawv luam ntawv zoo zoo, thiab luam ntawv phaj kuj tsis txaus siab.

 

5 Leej Neej Neeg

Hais txog qib kawm ntawv qib pob hauv av, chav tsev hauv vib nas this, ntsuas tau. Cov ntsiab lus tshawb pom yog: nyob rau qee qhov nqus thiab qhov siab, ib qhov ntim ntawm cov huab cua dhau los ntawm iav saum npoo thiab cov qauv piv txwv sib txawv nruab nrab ntawm lub sijhawm coj. Daim ntawv smoother yog, qeeb qeeb ntawm huab cua txav nws, thiab hloov ua lwm yam. Kev luam ntawv yuav tsum muaj ntawv nrog kev sib txig, siab du, lub dot me me yuav rau siab yug me nyuam, tab sis cov ntawv luam tag nrho yuav tsum mob siab tiv thaiv kom tsis txhob rov nplaum dua. Yog hais tias daim ntawv smoothness yog tsawg, yuav tsum tau luam tawm lub siab yog loj, number case noj kuj yog loj.

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6 Plua Txawv Qib

Hais txog qhov tsis meej ntawm sab npoo ntawm daim ntawv pob, xim thiab ntawv xim muaj qhov sib txawv. Hmoov av kawm ntawv yog qhov ntsuas ntawm qhov tsis txaus ntawm daim ntawv, qhia los ntawm cov naj npawb ntawm cov hmoov av hauv ib qhov thaj tsam ntawm ib lub 'meter' ntawm thaj chaw ntawv. Cov ntawv plua plav yog qhov siab, luam ntawv number case, dot cov nyhuv luam tawm yog qhov tsis zoo, qhov chaw tsis huv cuam tshuam rau kev zoo nkauj ntawm cov khoom.

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7 Sizing Degree

Feem ntau ntawv seem ntawm daim ntawv sau ntawv, txheej txheej xim thiab ntawv ntim khoom yog tsim los ntawm sizing ib txheej tiv thaiv nrog dej tsis kam. Yuav ua li cas thov sizing, feem ntau siv cov cwj mem duck dipped hauv cov qauv tshwj xeeb number case hauv ob peb lub vib nas this, kos ib kab rau ntawm daim ntawv, pom qhov dav siab tshaj plaws ntawm nws tsis nthuav dav, impermeability, chav tsev yog hli. Daim ntawv nto sizing yog siab, luam ntawv number case txheej brightness yog siab, tsawg dua kev siv number case.

 

8 Kev tsis taus

Nws yog peev xwm ntawm daim ntawv los nqus cov kua mem. Kev du, sizing ntawv zoo, number case nqus tau tsis muaj zog, number case txheej qhuav qeeb, thiab yooj yim lo lo luam ntawv. Ntawm qhov tsis sib thooj, number case nqus tau muaj zog, luam ntawv yog yooj yim kom qhuav.

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9 Sab Sij Huam

Nws yog hais txog daim ntawv fiber ntau lub koom haum txheej txheem kev taw qhia. Hauv cov txheej txheem los ua daim ntawv, daim fiber ua ke raws cov kev coj ua ntev ntev ntawm lub tshuab ntawv. Nws tuaj yeem lees paub los ntawm Cov Ntse ntawm lub ntsej muag ntse. Ntsug rau ntsug yog transverse. Qhov deformation tus nqi ntawm longitudinal ntawv lis grain luam ntawv yog me me. Nyob rau hauv cov txheej txheem ntawm transverse daim ntawv luam ntawv luam ntawv, kev sib txawv ntawm kev nthuav dav yog qhov loj, thiab lub zog tensile thiab kua muag kawm tsis zoo.

 

10 Tus Nqi Txo

Nws yog hais txog daim ntawv hauv qhov nqus lossis noo noo poob tom qab qhov loj me ntawm kev hloov. Lub softer lub fiber ntau cov ntawv ntawm daim ntawv, qhov qis qis ntawm qhov kev coj nruj, ntau qhov kev nthuav txav ntxiv ntawm daim ntawv; Hloov siab, qhov qis dua qib scaling qib. Ntxiv rau, smoothness, sizing ntawv zoo, nws nthuav dav yog me me. Xws li ob mog cov ntawv coated, daim iav thiab Daim Ntawv Offset, thiab lwm yam.

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11 Porosity

Feem ntau, daim nyias nyias thiab tsis nruj ntawm daim ntawv, nws yuav nqus tau ntau dua. Chav tsev ntawm kev ua pa muaj peev xwm yog ml / min (milliliter ib feeb) lossis s / 100ml (thib ob / 100ml), uas hais txog qhov ntau npaum li cas ntawm huab cua kis tau los ntawm daim ntawv hauv 1 feeb lossis lub sijhawm uas xav kom dhau ntawm 100ml ntawm huab cua. Daim ntawv nrog huab cua loj permeability yog nquag ua ob npaug ntawv nqus hauv kev luam ntawv.

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12 Dawb Kawm Txuj Ci

Nws hais txog qhov ci ntawm daim ntawv, yog tias txhua lub teeb pom kev los ntawm daim ntawv, qhov muag liab qab tuaj yeem pom tias dawb. Kev txiav txim siab ntawm daim ntawv dawb, feem ntau whiteness ntawm magnesium oxide yog 100% raws li tus qauv, coj daim ntawv piv txwv los ntawm xiav lub teeb irradiation, lub whiteness ntawm me reflectivity tsis zoo. Photoelectric whiteness meter tseem tuaj yeem siv los ntsuas lub whiteness. Cov koog ntawm whiteness yog 11 feem pua. High whiteness ntawv, luam ntawv number case zoo li tsaus, thiab yooj yim rau cov khoom lag luam los ntawm qhov tshwm sim.

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13 Pem hauv ntej thiab nraub qaum

Hauv ntawv txiav, sis plawv hniav yog zoo li tus los ntawm pom thiab lub cev qhuav dej los ntawm adhering rau ib daim phiaj steel. Nyob rau hauv txoj kev no, raws li sab ntawm lub vas vim qhov poob zoo ntawm cov nplua thiab cov ntsaws ntsej muag nrog dej, yog li tawm hauv cov kab cim, daim ntawv saum npoo yog tuab dua. Thiab lwm tog tsis muaj lub vas yog finer. Tus du, kom daim ntawv ua qhov sib txawv ntawm ob sab, txawm hais tias kev tsim kom qhuav, lub teeb nyem, tseem muaj qhov sib txawv ntawm ob tog. Daim iav ntawv yog txawv, uas cuam tshuam ncaj qha rau kev nqus ntawm tus number case thiab qhov zoo ntawm cov khoom luam ntawv. Yog hais tias cov ntawv sau ntawv siv cov ntawv luam ntawv nrog tuab sab rov qab, phaj yuav coj los ua ntau. Hauv ntej ntawm daim ntawv luam ntawv siab yog lub teeb, kev siv cwj mem los yog tsawg dua.

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Sijhawm lub sijhawm: Jul-07-2021