Daim ntawv tus cwj mem nqus tsis yog tsuas yog cuam tshuam nrog xoob degree thiab capillary lub xeev ntawm daim ntawv, tab sis kuj muaj feem xyuam rau cov khoom nto ntawm daim ntawv fiber, cov ntsiab lus ntawm muab tub lim, xim, kua nplaum, muaj pes tsawg leeg thiab cov yam ntxwv ntawm tus number case, luam ntawv txoj kev, luam ntawv siab thiab Lwm yam tseem ceeb.Hauv kev luam ntawv tiag tiag, qhov nqus ntawm tus number case tuaj yeem muab faib ua ob theem.
Thawj theem yog lub sijhawm nias ntawm lub tshuab luam ntawv, tso siab rau qhov kev txiav txim ntawm kev luam ntawv siab, ib feem ntawm tus number case hloov mus rau saum npoo ntawm daim ntawv mus rau hauv lub qhov hws loj, uas yog, tag nrho cov number case (xws li cov xim hauv tus number case) rau hauv daim ntawv pores. Cov txheej txheem no feem ntau hu ua lub siab infiltration theem. Nyob rau theem no, daim ntawv nqus ntawm tus number case feem ntau yog nyob ntawm qhov loj ntawm kev luam ntawv siab, cov qauv ntawm daim ntawv thiab tus number case viscosity thiab lwm yam.
Qhov thib ob theem yog los ntawm daim ntawv los ntawm qhov chaw imprint kom txog rau thaum tus number case qhuav tag. Cov theem no feem ntau yog nyob ntawm qhov kev txiav txim ntawm capillary ntawm daim ntawv kom nqus cov number case, hu ua dawb infiltration theem. Nyob rau theem no, qhov txuas sib cais los ntawm cov kua nplaum ntau thiab nkag mus rau hauv daim ntawv sab hauv es maj mam los ntawm cov pores me me thiab qhov ntxhib ntawm daim ntawv fibers.
Daim ntawv yog cov khoom ntxeem tau, thiab muaj ntau qhov sib txawv me me ntawm fiber ntau thiab fiber ntau, thiab nruab nrab ntawm fiber ntau thiab muab tub lim, uas yog sib npaug rau ntau cov hlab ntsha. Nyob rau hauv qhov kev txiav txim ntawm cov capillaries, cov khoom sib txuas hauv tus cwj mem tuaj yeem nqus tau, thiab qhov tuab ntawm txoj kab uas hla ntawm capillary, qhov nrawm dua tus number case nqus tus nqi. Yog li ntawd, cov qauv ntawm daim ntawv txiav txim siab nws nqus ntawm tus number case. Cov ntawv xoob dua, qhov pores loj dua, thiab qhov muaj zog ntawm tus cwj mem nqus.