Cov kev ceev ntawm daim ntawv thiab lwm yam ntawv

ntawm daim ntawv los yog daim ntawv ceeb thawj rau printing yog ib qho tseem ceeb heev. Qhov no txog kev paub yog txiav txim los ntawm lawv cov uas duav txhua yam ntawm kev siv, luam zoo, thiab txawm lub durability ntawm lub tshuab luam ntawv. Yuav ua li cas yog cov kev ceev ntawm ntau yam ntawv hom, thiab yuav ua li cas los xaiv tus yam rau cov hom ntawm kev ua hauj lwm?

Lub ceev thiab thickness - yog tsis tau tib yam

Hais txog kev ceev, ntau txhais li cas thickness ntawm daim ntawv, tab sis qhov no yog tsis ncaj ncees lawm. Thicker daim ntawv ntawm ib hom mas ntau tuab tshaj cov lwm yam, thaum lub sij hawm densities lawv tej zaum yuav zoo tib yam.

Nyob rau hauv qhov tseeb, daim ntawv tuab yog ntau xoob thiab ntxeem tau, nws yog kev kawm mus rau hnav sai thiab muaj tsawg durability. Thaum nyias siab ceev xav nias thiab kav ntev dua. Yog, thiab tus number case rau nws pw smoother, uas yog tus yuam sij rau ib tug ntshiab sau zoo. Yog li ntawd, nyias daim ntawv yuav tsis yeej ib txwm ua phem.

Uas daim ntawv yog siv qhov twg?

Nyob rau hauv cheeb tsam sib txawv ntawm applied ntau yam ntawm daim ntawv taw hnyav li. Piv txwv li, printing yuav tsum tau indices ntawm 60 mus rau 300 g / m ^2. Ntau tsawg no daim duab nyob rau hauv newsprint - tsuas yog 45-60 g / m ^2. Yog nqus tau daim ntawv los yog watercolor ntawv rau cov tsiaj ntawv thiab phaib - tag nrho tej yam hom muaj ib lub ceev, uas yog nruj me ntsis cai kev. Ib tug Whatman txawm tau tseeb ntsuas kaw mus ntsib ib tug.

Hais txog Whatman ntawv, yog tsim nyog sau cia hais tias qhov no yog qhov loj tshaj plaws luaj li cas ntawm daim ntawv siv nyob rau hauv lub tshav pob ntawm kev tsim thiab kev kos duab. Nws yog heev nrov nrog cov neeg ntawm txawv professions.

Ceev thiab sau zoo

Cov kev ceev ntawm daim ntawv thiab lub luam ntawv ntaus ntawv specifications yog zoo txuas. Cov lus qhia rau txhua lub tshuab luam ntawv chaw tsim tshuaj paus feem ntau qhia txog lub hom thiab pom zoo ceev. Npav A4, 64-163 g / m ^2, piv txwv li, txhais tau tias li ib daim ntawv yog tsim rau qhov no ntaus ntawv. Whatman nrog ib tug ntom siab tshaj tso cai yuav tsis ua hauj lwm - nws yuav txawm ua puas lub mechanism thiab puas lub tshuab luam ntawv.

Feem ntau, nyob rau hauv tus qauv chaw ua hauj lwm printers thiab copiers siv daim ntawv tawm tswv A3 thiab A4, nrog ib tug nruab nrab ceev ntawm 80 g / m ^2. Nws yog nyob rau tej cim no oriented manufacturers ua daim ntawv rau printing. Txhua yam ntawm lawv ua nws tus kheej hom, nrog ib tug high school cov sau zoo yog guaranteed rau ntawm daim ntawv ntawm lub hom. Piv txwv li, nws yog heev nrov nyob rau hauv peb chaw ua hauj lwm ntawm domestic khoom hom "Daus leej".

Ntawv nyhav thiab kev ua tau zoo GOST

Yog hais tias cov kev ceev yog lub npe hu, tus luj ntawm lub daim ntawv no kuj yooj yim rau taw. Piv txwv li, A4 ntawv uas muaj cov xov tooj nyob rau hauv lub hnab 80 g / m ² yuav hnyav txog 5 grams. Nyob rau hauv ib tug txheej txheem pawg ntawm tej daim ntawv los xij 500, nws txhais tau tias lub pob yuav hnyav kwv yees li 2.5 kilograms. Yog hais tias lub sij hnyav tshaj no daim duab, feem ntau yuav, tsis tau fwm cia tej yam kev mob thiab cov av noo ntau dua li ib txwm daim ntawv.

Ntawv rau chaw ua hauj lwm luam ntawv, cov phau ntawv, ntawv sau, nrog ib tug ntom ntawm 160 g / m² yuav muaj indices ntawm los ntawm 800 mus 900 kg ib cubic Meter. Tsawg 160 - 750 rau 850 kg / m³ yog nrov tsuas yog raws li offset ntawv thiab Whatman. Standard Ceev teev nws nyob rau theem ntawm 850-950 kg / m³. Nws tus kheej muaj ib tug tsawg dua kev ceev ntawm newsprint - nws tseem yog lub feem ntau pheej yig. Nws lub sij hawm ntawm "lub neej" tsuas yog ib tug ob peb hnub, tom qab uas kom durability qhov chaw tsim tshuaj paus tsis tau: daim ntawv no yuav pib rau crumble thiab tig daj.

Nyob rau hauv lub sau ceev ntawm cov paub tab yuav sib txawv, li zoo raws li lub rigidity thiab thickness ntawm daim ntawv. Niaj hnub no, muaj ntau cov qauv, thiab yuav khaws tag nrho ntawm cov kev zuj zus yuav tsis tau yooj yim.

Whatman - hwm qib daim ntawv

Whatman ceev yog siab tshaj uas ntawm lwm yam ntawv, yog li nws yog suav tias yog ib tug thawj-class khoom. Ib tug ob peb txheej txheem hom: A1 rau A4 (kuj muaj nyob A5 nqus daim ntawv), lawv txhua tus nws muaj nws tus kheej ceev - nyob rau hauv lub chav 120 rau 200 g / m². Thiab tseem muaj ib daim ntawv A0 daim ntawv nrog impressive chaw 841h1189 cm. Qhov no yog nqus daim ntawv loj loj tshaj tag nrho lwm hom ua ke.

Nyob rau hauv tas li ntawd mus ntsuas xws li qhov nyhav thiab ceev ntawm daim ntawv tseem ceeb heev uniformity ntawm sis plawv hniav, uas tsub kom sau zoo. Ib tug siab opacity ntawv tso cai rau sau los yog kos rau nws on ob sab.

Yuav ua li cas los mus txiav txim hais tias ua ntej koj ib tug tiag tiag high-quality nqus daim ntawv? Feem ntau nyob rau hauv tsos: daim ntawv no yog dawb, tuab thiab du. Yog hais tias nyob rau hauv tsis ntseeg, muab ib tug loj daim ntawv ntawm ib tug me ntsis dej huv. Los ntawm nws duab ntawv yuav tsum tsis txhob yuav deformed. Nws yog ib qhov kev siv tsis tau tsuas yog rau yog nqus, tab sis kuj mus rau xim - xim, Number case los yog xaum rau. Txawm hais tias cov hom phiaj los ntawm kev ntxias yuav mus yuav ib tug tshwj xeeb watercolor ntawv, nrog kev kub ceev thiab zoo heev zoo ntawm dej haum.

Nyob qhov twg thiab yuav ua li cas npaum li cas mus yuav Whatman?

Yog li ntawd, koj paub tias, dab tsi paub tab uas koj xav tau daim ntawv no, koj paub, dab tsi yuav tsum ceev ntawm daim ntawv, tab sis qhov twg mus yuav nws? Raws li ib tug txoj cai, nyob rau hauv lub chaw ua hauj lwm khw los yog tsev muag ntawv nyeem. Whatman yog muag nyob rau ntawm ib tus nqi pheej yig - rau hom ntawv A1 yuav tau them tsis tau ntau tshaj 20 rubles. lub me me luaj li los xij yuav raug nqi koj txawm tsawg.