Daim ntawv absorbency thiab nws cov nyhuv ntawm kev luam zoo
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.
Yog xav paub ntxiv, thov mus saib
http://www.joyful-printing.com. HMONG xwb
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
Cov xaj kua mis ntawm daim ntawv yog hais txog lub peev xwm ntawm daim ntawv los ntawm cov ntawv nyeem ntawm tus lej. Nws muaj feem xyuam rau kev nqus cov khoom uas tsis muaj viscosity hauv tus cwj pwm ntawm cov hlwv capillary ntawm daim ntawv thiab qhov nkag mus ntawm tej cheebtsam hauv tus cwj mem rau hauv ntawv. Nws yog qhov zoo tshaj ntawm cov teeb meem luam tawm. Ib qho ntawm cov tseem ceeb.
Kev nqus tau cov ntawv
Cov cwj mem kua ntim quav ntawm daim ntawv tsis yog tsuas yog ntsig txog lub looseness ntawm daim ntawv thiab lub xeev ntawm cov capillary, tab sis kuj muaj feem xyuam rau cov khoom ntim ntawm cov ntawv xov xwm, cov ntsiab lus ntawm cov muab tub lim, cov xim, cov roj hmab, cov yam ntxwv ntawm tus cwj mem, txoj kev luam tawm, kev luam ntawv thiab cov zoo li. Hauv cov ntawv luam, cov cim ntawm cov ntawv nyeem tau muab faib ua ob theem.
Thawj theem pib ntawm lub luam ntawv tom qab lub sij hawm luam tawm, uas tso siab rau ntawm lub tshuab luam ntawv mus luam ib feem ntawm tus cwj pwm pauv mus rau saum npoo ntawm daim ntawv rau hauv lub qhov loj ntawm daim ntawv, uas yog, tag nrho cov lej (nrog rau cov xim hauv tus cwj mem ) nkag ntawm daim ntawv qhov ncauj. Cov txheej txheem no feem ntau hu ua Kev Ntxhais Siab Siab. Nyob rau theem no, qhov cim ntawm cov ntawv nyeem ntawm cov ntawv nyeem yog nyob ntawm cov yam ntxwv xws li luam tawm siab, qauv ntawm daim ntawv, thiab viscosity ntawm tus cwj mem. Yog hais tias lub tshuab luam ntawv loj los yog cov qauv ntawm daim ntawv yog xoob, daim ntawv yuav nqus tus lej ntau dua. Feem ntau, cov ntaub ntawv nrog cov qauv ntaub xoob, xws li ntawv ceeb toom, ntawv xa ntawv, thiab lwm yam., Yuav tsum tau muaj kev luam tawm siab thiab muaj kua qis dua. Kev luam ntawv nrog ceev qauv, xws li cov ntaub ntawv coated, lub tshuab luam ntawv yuav ua tau zoo dua, thiab cov ink viscosity yuav ua tau me ntsis siab dua.
Qhov thib ob theem yog tawm hauv cheeb tsam ntawm daim ntawv ntim ntawm daim ntawv kom txog thaum tus number case yog qhuav. Cov theem no tsuas yog siv rau hauv qhov kev txiav txim ntawm capillary ntawm daim ntawv los nqus tus cwj mem, uas yog hu ua dawb osmosis theem. Hauv qib no, cov phau ntawv tus kheej cais tawm ntawm tus lej los ua ke thiab nkag mus rau sab hauv ntawm daim ntawv ntawm tus nqi qis dhau los ntawm qhov ntxhib qhov me me ntawm lub me pores thiab daim fibers. Yog li no, txoj kev no yog ib txoj hauv kev uas cov kab ntawv tau los ntawm tus cwj pwm mus rau hauv daim ntawv qhov ntxa, vim hais tias tus binder yog sib cais los ntawm tus lej cim raws li tus lej, thiab lub conjunctival zog tshuav ntawm daim ntawv cuav zaj duab xis yuav raug hloov. Kev kho kom zoo thiab ziab ntawm tus cwj pwm kuj tseem nyob hauv tus txheej txheem. nqa tawm. Nyob rau qib no, tus nqi uas daim ntawv nkag mus rau tus lej txiav txim siab txog cov ntaub ntawv ntawm lub luam tawm thiab seb puas muaj kev sib tw, kev sib tw, thiab lwm yam. Thaum tus cwj pwm muab xa mus rau hauv daim ntawv, lub khob phaus nyhav nyhav nyhav (solvent) yuav pib nkag mus rau hauv cov ntawv txheej thaum lub sij hawm dhau mus, yog li ntawd cov ntsiab lus hnyav hauv ink number txheej rau hauv daim ntawv yuav txo, thiab tus lej viscosity yuav nce. Tus number case txheej yog ntxo.
Tus cwj mem absorbency ntawm daim ntawv nyob ntawm seb muaj pes tsawg daim ntawv capillaries thiab qhov loj ntawm lub taub capillary. Daim ntawv yog cov khoom ntxeem tau. Muaj ntau qhov sib txawv ntawm cov fibers thiab fibers hauv daim ntawv, nruab nrab ntawm cov fibers thiab cov muab tub lim, thiab nruab nrab ntawm cov xim ua pigment. Cov khoob no yog sib npaug rau ntau lub hlab ntsha hlaub. Nyob rau hauv qhov kev txiav txim ntawm cov capillaries, tus binder nyob rau hauv tus number case yuav absorbed, thiab thicker lub kab hla ntawm lub capillary, ceev tus absorb ntawm tus number case. Vim li no, cov qauv ntawm cov ntawv sau tau txiav txim tias nws lub xaj kua mis.
Lub looser daim ntawv, qhov loj dua qhov pores thiab lub zog muaj tus cwj pwm absorption. Piv txwv, newsprint yog tus xoob xoob thiab muaj tus cwj pwm zoo haum. Yog li no, tus number case muab xa mus rau cov ntawv xov xwm yog ceev ceev ceev, uas yog qhov zoo rau kev txhim kho ntawm kev ceev ceev. Cov ntawv coated tsis yog xoob ibqho npuaj ntawv, thiab qhov khwb qhov muag tsis loj li cov ntaub ntawv offset. Txawm li cas los xij, kev kho ntawm cov lej cim thaum lub sij hawm luam ntawv tsis yog qeeb qeeb dua ntawv. Muaj ob yam tseem ceeb. Ua ntej, tus nqi ntawm tus cwj pwm uas muab los ntawm daim ntawv coated yog me me; Qhov thib ob, muaj ntau plab me me thiab me me hlaub ntawm cov xim uas txuas nrog rau ntawm daim ntawv coated. Lub peev xwm nqus ntawm ntau cov hlab ntsha hauv cov hlab ntsha yog loj dua li ntawm ob peb lub hlab loj capillary. Tsis tas li ntawd, cov ntawv coated muaj lub zog xaiv xim rau cov phom, uas yog cov khoom uas tsis tshua muaj siab khov kho muaj zog hauv cov phom mus rau hauv daim ntawv, thiab cov ntawv pov thawj nyob hauv lub binder tseem nyob hauv tus number case txheej, tuaj yeem kho tau. Kev ruaj khov thiab gloss.