M'makampani opanga mapepala, fiber morphology ndi chimodzi mwazinthu zazikulu zomwe zimatsimikizira zamkati komanso mtundu womaliza wa pepala. Fiber morphology imaphatikizapo kutalika kwa ulusi, chiŵerengero cha makulidwe a fiber cell khoma mpaka ma cell awiri (otchedwa khoma-to-cavity ratio), ndi kuchuluka kwa ma heterocyte opanda fibrous ndi mitolo ya ulusi mu zamkati. Zinthu izi zimalumikizana wina ndi mzake, ndipo zimakhudzanso mphamvu ya mgwirizano wa zamkati, kuchepa kwa madzi m'thupi, kukopera ntchito, komanso mphamvu, kulimba ndi khalidwe lonse la pepala.
1) Avereji ya utali wa fiber
Utali wapakati wa ulusi ndi chimodzi mwazizindikiro zofunika zamtundu wa zamkati. Ulusi wautali umapanga maunyolo otalikirapo mu zamkati, zomwe zimathandiza kukulitsa mphamvu zamagwirizano ndi mphamvu zamapepala. Pamene kutalika kwa ulusi kumawonjezeka, chiwerengero cha mfundo zosakanikirana pakati pa ulusi zimawonjezeka, zomwe zimapangitsa kuti pepalalo lifalitse bwino kupsinjika maganizo pamene likukumana ndi mphamvu zakunja, motero kumapangitsanso mphamvu ndi kulimba kwa pepala. Chifukwa chake, kugwiritsa ntchito ulusi wautali wautali, monga spruce coniferous zamkati kapena thonje ndi zamkati zansalu, zimatha kutulutsa mphamvu zambiri, kulimba kwa pepala, mapepalawa ndi oyenera kugwiritsidwa ntchito pakufunika kwa zinthu zapamwamba zamwambo, monga zoyikapo, mapepala osindikizira ndi zina zotero.
2) Chiyerekezo cha makulidwe a fiber cell khoma mpaka cell cavity diameter (khoma-to-cavity ratio)
Chiŵerengero cha khoma-to-cavity ndi chinthu china chofunikira chomwe chimakhudza zamkati. Chiŵerengero chochepa cha khoma-to-cavity chimatanthawuza kuti khoma la fiber cell ndilochepa kwambiri ndipo khungu la selo ndilokulirapo, kotero kuti ulusi mu pulping ndi papermaking umakhala wosavuta kuyamwa madzi ndi kufewetsa, zomwe zimathandizira kukonzanso kwa ulusi, kubalalitsidwa. ndi kukangana. Panthawi imodzimodziyo, ulusi wokhala ndi mipanda yopyapyala umapereka kusinthasintha bwino komanso kupindika popanga mapepala, zomwe zimapangitsa kuti pepala likhale loyenera kwambiri pokonza ndi kupanga njira. Mosiyana ndi zimenezi, ulusi wokhala ndi makoma a khoma-to-cavity ukhoza kupangitsa kuti pakhale mapepala olimba kwambiri, osasunthika, omwe sangagwirizane ndi kukonzanso ndi kugwiritsira ntchito.
3) Zomwe zili ndi ma heterocyte opanda fibrous ndi mitolo ya fiber
Maselo opanda ulusi ndi mitolo ya ulusi mu zamkati ndi zinthu zoyipa zomwe zimakhudza mtundu wa pepala. Zonyansazi sizidzangochepetsa chiyero ndi kufanana kwa zamkati, komanso popanga mapepala kuti apange mfundo ndi zolakwika, zomwe zimakhudza kusalala ndi mphamvu ya pepala. Ma heterocyte opanda fibrous angayambe kuchokera kuzinthu zopanda ulusi monga makungwa, utomoni ndi chingamu muzopangira, pamene mitolo ya fiber ndi fiber aggregates yomwe imapangidwa chifukwa cha kulephera kwa zopangira kuti zisiyanitse mokwanira panthawi yokonzekera. Choncho, zonyansazi ziyenera kuchotsedwa momwe zingathere panthawi ya pulping kuti zikhale bwino komanso zokolola za pepala.
Nthawi yotumiza: Sep-28-2024
