Qhia Kom Meej Puv 11 Lub Cev Muaj Zog Cov Khoom Siv

1. Hais txog

Quantitative feem ntau paub lub luj, yog qhov nyhav ntawv ntawm cheeb tsam hauv chav kawm, qhia hauv grams ib square meter. Feem ntau, qhov phaus zis yog poob qab 250 g / m2, uas yog hu ua ntawv; qhov phaus yog qhov siab tshaj 250 g / m2, uas yog hu ua cardboard los yog paperboard. Quantitative yog qhov tseem ceeb ntawm lub cev ntawv, nws qib thiab nws cov uniformity, cuam tshuam tag nrho lub cev thiab luam ntawv kev ua tau zoo.

2. Thickness thiab ceev nrooj

Thickness qhia tias cov ntaub ntawv ntawm cov ntawv tuab, nws yog hais txog qhov tuab ntawm daim ntawv los yog duab los qhia hauv kev ncaj ntawm kev ntsuas ntawm ob qho ntawv xov hluav taws xob, hauv hli lossis μm. Nyob rau hauv dav dav, lub thickness ntawm ib tug ncaj qha feem on lub opacity ntawm daim ntawv, qhov ntau dua lub thickness ntawm lub opacity lub zoo dua. Thickness uniformity yog ib qho tseem ceeb rau daim ntawv, unevenness hauv thickness cuam tshuam cov txo thiab gluteness, thiab cov laus thiab xim reproduction instability.

Tightness yog hais txog qhov hnyav ntawm qhov ntawv ntim qhov ntim, los yog kev ceev, yog xam los ntawm kev faib cov thickness calculated.

Tightness yog ib qho kev ntsuas ntawm lub cev ntawm cov qauv ntaub ntawv, tib daim ntawv fiber ntau ntawv, ntau dua qhov ceev ceev, daim ntawv ntau qhov ntom, ntawm qhov tawm tsam, daim ntawv ntau xoob. Qhov ceev nruj ntawm ntawv yog proportional rau lub zog tensile.

3. Tensile zog thiab elongation

Tensile zog yog qhov siab tshaj plaws uas rub tawm tau los ntawm tus neeg teb xov tooj ua ntej yuav rhuav tshem ntawm cov ntawv xov xwm dav dav los yog cov duab los qhia raws li cov txheej txheem teev tseg. Thaum daim ntawv ncav los ntawm nro, daim ntawv yuav tsum ncav rau hauv kev coj ntawm kev quab yuam. Thaum lub zog quab yuam tau nce kom lub phaj rho tawm, lub elongation ncav lub txwv. Nyob rau lub sij hawm no, qhov sib piv ntawm qhov ntev ntawm elongation mus rau thawj qhov ntev yog hu ua elongation, qhia raws li ib feem pua.

Rau qhov web printing, lub zog tensile thiab elongation ntawm daim ntawv yog ib qho tseem ceeb qhia. Vim tias daim ntawv yob hauv cov lus teb, cov ntawv yuav nyob hauv nro zoo. Yog tias lub zog tensile tsawg dhau, nws yuav ua rau cov ntawv tawg; thiab yog hais tias lub elongation loj dhau lawm, nws yuav hloov qhov loj ntawm daim ntawv los ua qhov kev yuam kev overlay. Yog li, kev siv cov ntawv uas muaj zog tensile thiab tsis tshua muaj elongation tuaj yeem tiv thaiv thiab txo qhov kev cuam tshuam ntawm breakage ntawm daim ntawv thaum luam ntawv, thiab txo qhov yuam kev yuam kev.

4. Ua siab ntev folding

Daim ntawv folding endurance hais txog cov kev mob uas tau hais tseg, hauv cov cuab yeej tshwj xeeb, cov qauv yuav muab khi ua ntej yuav rhuav cov zauv ntawm lub sij hawm, uas hais txog ob chav folding.

Kev sib txhuam ntawm kev sib tw yog ib qho tseem ceeb tshaj plaws ntawm kev ua tau zoo ntawm daim ntawv thiab ntawv qhia. Nws yog kev ntsuas ntawm lub zog thiab yooj yim ntawm daim ntawv. Qhov kev ntsuas no tsim nyog rau ntau hom ntawv thiab ntawv tso cai, tab sis rau cov ntawv xov xwm, ntawv teev nyiaj txiag, daim ntawv ntawv, phau ntawv npog yog qhov tseem ceeb, vim tias lawv tab tom siv cov teeb meem rov qab folding, thiaj li yuav ntev tau nws lub neej, koj yuav tsum lawv muaj xws li ib tug ntau ntawm folding.

5. Ntawv ua kom muaj zog

Lub zog ntawm daim ntawv hais txog ntawm daim ntawv fibers, fillers, pigments, thiab lwm yam ntaub ntawv nrog rau cov ntawv, qhov kev sib txuas ruaj ruaj, uas yog hais txog lub zog ntawm cov ntaub ntawv siv rau sab nraud.

Feem ntau, daim ntawv xov hluav taws xob muaj zog qis dua, thaum coated daim ntawv saum npoo zog siab dua. Feem ntau tshwm sim nyob rau hauv cov hmoov luam tawm ntawm qhov tshwm sim ntawm cov plaub hau poob thiab cov nplaim ntawm daim ntawv no zoo rau kev siv. Nyob rau hauv ntawv xov xwm luam ntawv, feem ntau ntawm cov ntawv xov xwm tawm ntawm cov ntawv luam tawm thiab sab laug rau ntawm tus number plays, uas ua rau cov khoom siv tsis zoo, cov pob dawb pom, cov nplua fibers ntawm cov khoom poob hauv cov ntaub ntawv yuav thaiv qhov nraaj ntawm daim luam phaj, kom luam ntawv Daim duab no tau txais tsawg dua meej.

6.Quajsiab

Kev sib sib zog nqus, nyob rau hauv ib qho chaw ntawm lub tshuab nqus tsev, lub ntim ntawm huab cua, los ntawm lub siab, ib qho piv txwv ntawm thaj tsam ntawm thaj chaw ntawm lub khob ntom ntom thiab lub sij hawm uas yuav tsum tau muaj, qhia rau hauv vib nas this.

Lub smoothness ntawm lub saum npoo ntawm daim ntawv muaj ib feem ncaj qha rau cov luam tawm. Thaum daim ntawv uas muaj qhov sib txig sib luag yooj yim heev yuav tsum tau them los ntawm tus cwj pwm zaj duab xis, cov nyhuv luam tawm ntawm daim ntawv coated zoo dua li ntawm qhov ntawv offset. Qhov ntau dua qhov smoothness ntawm daim ntawv, rau ntau sophisticated printing dot siv, zus tau zoo dua sau. Peb xav kom muaj ntawv nrog smoothness, ua raws li kev siab-smoothness ntawv. Chav tsev ntawm smoothness yog huab cua ntws sij hawm. Lub hauv paus ntsiab lus yog siv lub zog ntawm huab cua nyob rau ntawm daim ntawv ntawm cheeb tsam square inch ntawm daim ntawv nplaum los xam cov huab cua ntws raws lub sij hawm. Lub sijhawm ntev dua, nws lub siab dua.

7. Kev pom zoo

Lub absorbency ntawm daim ntawv hais txog qhov peev xwm ntawm daim ntawv los nqus dej los yog cov kuab tshuaj. Tus cwj mem yog nyob rau ntawm lub peev xwm absorption peev xwm, nws muaj peev xwm hais tau tias tus number case nyob rau hauv daim ntawv lub peev xwm mus penetrate. Nws tsis yog hais txog looseness thiab capillary xeev ntawm daim ntawv, tab sis kuj muaj feem xyuam rau cov khoom siv deg, cov ntsiab lus ntawm cov ntaub so ntswg, cov xim thiab lub hnab roj hmab, cov kab ntxwv thiab cov yam ntxwv ntawm tus cwj mem, thiab tseem muaj feem xyuam rau hom ntawv luam tawm thiab kev luam ntawv siab.

Daim ntawv yuav tsum tau nqus dej los mus txhawb kev muab hloov number case. Txawm li cas los xij, yog hais tias lub cev tsis txaus siab heev, tus lej number case ntim yuav kis mus rau hauv sab hauv ntawm daim ntawv ntau dhau, thiab cov khoom siv pigment rau ntawm daim ntawv, ua nyuaj rau tsim ib zaj duab xis, uas ua rau tsis muaj gloss ntawm cov khoom luam tawm thiab txawm tias pulverization ntawm tus number case txheej. Feem ntau, qhov ntau dua qhov tsis txaus, qhov nthuav dav pom zoo ntxiv, thaum lub caij nyoog tsis muaj zog, tab sis kuj ua rau kom muaj cov ntaub ntawv luam tawm, uas cuam tshuam qhov zoo ntawm cov ntawv luam tawm.

8. Whiteness

Daim ntawv whiteness hais txog lub ntsiab lus ntawm cov ntawv yog qhov tag nrho ntawm qhov pom ntawm lub teeb nyob rau hauv tag nrho cov kab tshav puam ntws los ntawm kev ua haujlwm tsis txaus. Lub ntsiab tseem ceeb uas cuam tshuam lub whiteness yog lignin cov ntsiab lus thiab cov tshuaj dawb ntawm daim ntaub ntawv pulp. Vim yog lub txheej txheem daj ntawm lignin, nws tsim nyog los txo cov ntsiab lus hauv lignin hauv daim ntawv kom tau txais daim ntawv muaj lub siab dawb.

Lub qhov dawb ntawm daim ntawv tau muaj feem ntau ntawm cov xim ntawm cov khoom luam tawm dhau los. Qhov siab dua ntawm qhov ntawv ntawm qhov ntawv, qhov tseeb dua qhov xim ntawm tus cwj mem yog. Qhov sib npaug tshaj qhov xim ntawm cov ntawv luam tawm yog, wider xim gamut yog. Cov ntaub ntawv tseem ceeb tshaj plaws yog cov qis, daj, thiab qhov dawb ntawm cov ntawv qhwv ntaub ntawv thiab cov ntawv coated kuj zoo ib yam.

9. Qhib

Qhov no txhais tau hais tias cov lus thiab cov ntawv luam tawm ntawm ib sab ntawm daim ntawv, hos lwm sab kuj tau luam tawm cov ntawv los yog cov duab, lawv yuav tsis tshwm ntsej muag zoo nkauj. Cov neeg tsis paub lus zoo heev, yog li ntawd ntawm phau ntawv thiaj li nyeem tau cov ntsiab lus ntawm nplooj ntawv, yuav tsis raug ntaus rau ob sab ntawm cov nyhuv ntawm kev dim kom lub qhov muag nkees. Cov yam ntxwv uas cuam tshuam rau kev tawm tsam yog: i. Lub thickness ntawm daim ntawv xwb; ii) txawm tias tsis yog cov kua nplaum los thov; iii. Lub smoothness thiab roughness ntawm daim ntawv saum npoo; iv. Qhov kev ntsuam xyuas no yog ntsuas los ntsuas ntau npaum li cas teeb rau ntawm daim ntawv nws tus kheej, chav tsev yog qhov feem pua.

10. Glossiness

Gloss yog cov ntaub ntawv ntim rau hauv qhov rov qab teeb pom kev zoo thiab daim iav rov qab muaj peev xwm nyob ze ntawm daim ntawv yog daim ntawv ntawm lub kaum ntse ntse ntawm lub iav rov qab tus nqi thiab txheem dub iav ntawm tib lub kaum sab nrauv ntawm lub iav rov qab piv Said.

Ntawv mills feem ntau ntsuas cov teeb ntawm lub teeb pom los ntawm qhov saum npoo ntawm ntawv dawb thiab feem pua ​​ntawm cov kev xav. Kev lag luam yuav siv tus nqi no rau qib ntawv, qhov siab tshaj ntawm daim ntawv rau qhov zoo tshaj qhov khoom tiav. Daim ntawv lwv, daim duab xim zoo nkauj dua. Qee cov ntawv xov xwm thiab cov phau ntawv xov xwm siv cov ntawv ci ntsa iab los thaij lawv cov ntawv nyeem thiab cov duab kom nyiam mloog, tab sis cov phau ntawv tau ua nrog daim ntawv qis qis kom txo tau cov teeb meem ntawm lub teeb ci ntau dhau ntawm lub qhov muag Ib qho yooj yim mus hnav.

Los ntawm cov saum toj no, nws yuav pom tau tias cov khoom ntawm daim ntawv muaj feem xyuam rau cov ntawv pov thawj ntawm daim ntawv, uas paub tag nrho cov tshuab luam ntawv. Txawm li cas los xij, tus nqi ntawm qhov cuam tshuam loj tshaj plaws rau kev luam thiab kev luam, tus nqi thiab qhov sib txheeb ntawm txoj kev sib raug zoo ntawm luam tawm thiab kev luam tiam sis tsis yog txhua tus paub. Yog hais tias qhov nyiaj ntawm qhov kev cuam tshuam txog kev luam ntawv yuav yog ib qho txiaj ntsig zoo los piav txog qhov loj, tom qab ntawd qhov kev lag luam luam ntawv yuav coj tus cwj pwm tsis txaus ntseeg yuav pab tau zoo.

11. Cov hluav taws xob ua haujlwm

Kev ua haujlwm deg yog qhov tsis yog qhov muag uas ua rau lub suab nrov ntawm daim ntawv.

- cov ntaub ntawv ntim ntawv (ntim kev ua haujlwm)

Ink absorption peev xwm ntawm daim ntawv

- Glossiness ntawm daim ntawv.