Hauv kev lag luam ntawv, fiber ntau morphology yog ib qho tseem ceeb ntawm kev txiav txim siab ntawm cov ntaub so ntswg thiab cov ntawv kawg. Fiber morphology encompasses qhov nruab nrab ntev ntawm fibers, qhov ratio ntawm fiber cell phab ntsa thickness rau cell inch (hu ua phab ntsa-rau-kab noj hniav piv), thiab tus nqi ntawm non-fibrous heterocytes thiab fiber bundles nyob rau hauv lub pulp. Cov yam ntxwv no cuam tshuam nrog ib leeg, thiab sib koom ua ke cuam tshuam rau kev sib raug zoo ntawm cov ntaub so ntswg, kev ua kom lub cev qhuav dej, kev luam ntawv, nrog rau lub zog, toughness thiab tag nrho cov ntawv zoo.
1) Qhov nruab nrab fiber ntau ntev
Qhov nruab nrab ntev ntawm cov fibers yog ib qho tseem ceeb qhia ntawm pulp zoo. Cov fibers ntev ntev tsim cov hlua txuas ntev dua hauv cov ntaub so ntswg, uas pab txhim kho cov khoom sib txuas thiab tensile zog ntawm daim ntawv. Thaum qhov nruab nrab ntev ntawm fibers nce, tus naj npawb ntawm interwoven ntsiab lus ntawm cov fibers nce, cia daim ntawv kom zoo dua disperse kev ntxhov siab thaum raug rau sab nraud quab yuam, yog li txhim kho lub zog thiab toughness ntawm daim ntawv. Yog li ntawd, kev siv cov fibers ntev ntev ntev, xws li spruce coniferous pulp lossis paj rwb thiab linen pulp, tuaj yeem tsim lub zog ntau dua, zoo dua qhov tawv ntawm daim ntawv, cov ntaub ntawv no zoo dua rau kev siv nyob rau hauv kev xav tau ntau dua lub cev ntawm lub sijhawm, xws li cov ntaub ntawv ntim, ntawv luam ntawv thiab lwm yam.
2) Qhov ratio ntawm fiber cell phab ntsa thickness rau cell kab noj hniav txoj kab uas hla (wall-to-cavity ratio)
Qhov sib piv ntawm phab ntsa-rau-kab noj hniav yog lwm qhov tseem ceeb cuam tshuam rau cov khoom siv pulp. Qhov qis ntawm phab ntsa-rau-cavity piv txhais tau hais tias cov phab ntsa fiber ntau yog qhov nyias nyias thiab cov kab noj hniav ntawm tes loj dua, yog li cov fibers hauv cov txheej txheem pulping thiab papermaking yog yooj yim nqus dej thiab soften, conducive rau refinement ntawm fibers, dispersion. thiab intertwining. Nyob rau tib lub sijhawm, nyias-walled fibers muab kev yooj yim dua thiab foldability thaum tsim daim ntawv, ua rau daim ntawv tsim nyog rau kev ua haujlwm nyuaj thiab kev tsim cov txheej txheem. Piv txwv li, fibers nrog siab phab ntsa-rau-kab noj hniav sib piv tuaj yeem ua rau cov ntawv tawv tawv heev, uas tsis haum rau kev ua haujlwm tom qab thiab siv.
3) Cov ntsiab lus ntawm non-fibrous heterocytes thiab fiber ntau pob
Cov hlwb tsis muaj fiber ntau thiab cov pob fiber ntau hauv cov tawv nqaij yog qhov tsis zoo cuam tshuam rau daim ntawv zoo. Cov impurities no yuav tsis tsuas yog txo cov purity thiab uniformity ntawm lub pulp, tab sis kuj nyob rau hauv cov txheej txheem papermaking los tsim knots thiab tsis xws luag, cuam tshuam rau smoothness thiab lub zog ntawm daim ntawv. Non-fibrous heterocytes tuaj yeem tshwm sim los ntawm cov khoom tsis-fibrous xws li tawv tawv, resin thiab cov pos hniav hauv cov khoom siv raw, thaum fiber ntau yog fiber ntau aggregates tsim los ntawm qhov tsis ua haujlwm ntawm cov khoom siv raw kom tsis txaus thaum lub sijhawm npaj. Yog li ntawd, cov impurities yuav tsum tau muab tshem tawm kom ntau li ntau tau thaum lub sij hawm pulping txheej txheem los txhim kho pulp zoo thiab ntawv yield.
Post lub sij hawm: Sep-28-2024
