Macheke Ogulira Tishu ya Virgin Wood Pulp

Kufewa kwa chinthu chopangidwa ndi minofu, kuyamwa kwake, ndi kugwira ntchito kwake kosintha zinthu nthawi zambiri zimasankhidwa chisanafike pa chinthu chobwezeretsanso. Kwa ogula, funso lenileni silili loti chopangidwacho chimapangidwa ndi matabwa achilengedwe, koma ngati malipoti a ogulitsa amatsimikizira kuti chingagwire ntchito bwino ndikukwaniritsa muyezo womwe msika ukufuna.Kapangidwe ka ulusi, GSM, kuwala, chinyezi, miyeso ya mipukutu, kuyamwa, ndi deta ya mphamvuZonsezi zimakhudza kuchuluka kwa zinthu, nthawi yogwira ntchito, komanso kusinthasintha kwa zinthu zomwe zamalizidwa. Bukuli likufotokoza zomwe magulu ogula ndi akatswiri ayenera kutsimikizira mu pepala lofotokozera za tissue parent roll, momwe angatanthauzire manambala ofunikira monga 12–42 GSM ndi chinyezi cha 4%–7%, komanso zolakwika zakuthupi zomwe zingasokoneze kusintha.

Mafotokozedwe Ofunika Otsimikizira

Mukafuna kugulaminofu ya matabwa a virgin pulp parent rollKutsimikizira zofunikira zoyambira ndikofunikira kuti zitsimikizire kuti ntchito zosinthira sizimasokonekera. Mipukutu yayikulu iyi ndi maziko akupanga minofuKaya malo opangira zinthu zapamwamba pankhope kapena zinthu zopukutira m'mafakitale, chinthu choloweracho chimayang'anira mtundu wake. Magulu ogula ayenera kutsimikizira miyezo inayake mu malipoti a ogulitsa asanapereke oda yogulira.

Kuchuluka kwa Ulusi, Kuwala, ndi GSM

Muyeso woyamba wotsimikizira pa lipoti lililonse la ogulitsa ndi kapangidwe kake. Minofu yodziwika bwino imafuna kusakaniza bwino kwa ulusi wolimba ndi wa softwood virgin. Chiŵerengero chabwino kwambiri chimasiyana malinga ndi momwe amagwiritsidwira ntchito: softwood pulp imapereka mphamvu yofunikira yogwirira ntchito kuti makina azigwira ntchito bwino komanso kuti makina azigwira ntchito bwino.matawulo olemera a m'manja, pomwe phala la matabwa olimba limathandizira kufewa ndi kukula kwa minofu ya nkhope. Kuphatikiza pa kapangidwe ka ulusi, ogula ayenera kuwunika kulemera kwake, komwe nthawi zambiri kumakhala pakati pa 12 ndi 42 GSM kutengera ngati kugwiritsa ntchito ndi kwabwino.minofu yofewa ya nkhopekapena chopukutira cholemera.

Kuwala ndi chinthu china chofunikira kwambiri chomwe chimakopa makasitomala m'misika yapamwamba komanso yochereza alendo. Malipoti a labotale a magiredi a bleached virgin ayenera kutsimikizira mulingo wa kuwala kwa ISO pakati pa 86% ndi 90%. Mosiyana ndi zimenezi, pulp ya virgin yosadetsedwa nthawi zambiri imagwiritsidwa ntchito m'mafakitale enaake komanso m'mafakitale operekera chakudya, omwe ali ndi zofunikira zosiyana kwambiri pa kuwala. Ngati malo akugula zinthu,mipukutu yoyambirira ya makoloKuonetsetsa kuti miyezo iyi ya kuwala ndi yolondola kudzasunga mawonekedwe omwe akufunidwa mu zinthu zomalizidwa.

Magulu ogula ayeneranso kutsimikizira kuchuluka kwa chinyezi chomwe chaperekedwa. Monga chinthu chofunikira kwambiri,mndandanda wa makolo apamwamba kwambiriayenera kukhala ndi chinyezi cha 4% mpaka 7%. Chinyezi chopitirira 7% chingayambitse kuwonongeka panthawi yoyenda, pomwe milingo yochepera 4% imapangitsa pepalalo kukhala losweka, zomwe zimawonjezera chiopsezo cha kusweka kwa ukonde panthawi yocheka kapena kukongoletsa.

Kukula kwa Mpukutu, M'mimba mwake, ndi Kukula kwa Pakati

Miyeso yeniyeni imalamulira momwe makina angagwirizanire ndi fakitale ndipo imakhudza momwe zinthu zimayendera. Mipukutu yoyambira imatha kupangidwa ndi miyeso yoopsa kwambiri—monga m'lifupi mpaka 5,520 mm—koma izi zikuyimira mphamvu zazikulu za makina osati kukula kwa masheya wamba. Ogula nthawi zambiri amafunika kutchula zofunikira zenizeni za m'lifupi mwa kudula zomwe zimagwirizana ndi zomangira zawo. Ma diameter amayambira pa 1,000 mpaka 2,560 mm; pomwe mainchesi a 1,150 mm nthawi zambiri amasankhidwa kuti akwaniritse malo mkati mwa zotengera zoyendera zapanyanja, kukula koyenera kuyenera kugwirizana ndi zoletsa za zida za wogula.

Kukula kwa pakati n'kofunika kwambiri. Ngakhale kuti pakati pa 76 mm (3-inch) ndi kofala, sikofala kwambiri; ma roll ambiri amagwiritsa ntchito ma core a 150 mm kapena kuposerapo. Kutsimikizira kukula kwa pakati kumatsimikizira kuti zikugwirizana ndi ma chuck omasuka a malo ogwirira ntchito ndipo kumasunga kulamulira kolimba kwa mphamvu panthawi yokonza. Kuteteza kuyenda, pakadali pano, kumadalira njira zoyenera zokutira ndi kugwirira ntchito m'malo mwa kukula kwa pakati komweko.

Kupitilira muyeso wamba, ogula ayenera kuyang'ana zolakwika zazikulu pakati pa makolo. Zinthu zodziwika bwino zomwe ziyenera kutsatiridwa ndi monga momwe zimakhalira ndi reel-edge, mawonekedwe a makina (MD) caliper, komanso kusowa kwa makwinya kapena mabowo. Kuphwanya pakati kuyeneranso kupewedwa, chifukwa pakati powonongeka kumalepheretsa kugwedezeka koyenera. Izi ndizofunikira kwambiri kuti munthu asamavutike.

Kuyerekeza Magwiridwe Antchito ndi Ubwino

Kupitilira pa zofunikira za kukula kwake, ogula ayenera kuwunika momwe mpukutu wa makolo umagwirira ntchito pamizere yosinthira yothamanga kwambiri. Mpukutu wa makolo umagwira ntchito ngati gawo lomalizidwa pang'ono lomwe liyenera kupirira kudula, kukongoletsa, kupukuta, ndi kubowola mwamphamvu. Kumvetsetsa momwe ulusi wa virgin umagwirira ntchito kumathandiza kutsimikizira kusankhidwa kwake m'malo mwa zinthu zina ndikutsimikizira kuti ntchito yake ndi yodalirika pansi pa mphamvu ya makina.

Kuyera kwa Ulusi, Kuyamwa, ndi Mphamvu

Virgin wood pulp imapereka magwiridwe antchito abwino kwambiri amakina, omwe ayenera kutsimikiziridwa pogwiritsa ntchito mayeso okhazikika monga mndandanda wa ISO 12625. M'malo motchula muyezo wonse, otembenuza ayenera kuyang'ana miyezo yeniyeni: ISO 12625-4 ya Machine Direction (MD) ndi Cross Direction (CD) tensile strength, ISO 12625-8 yanthawi yoyamwa madzindi mphamvu, ndi ISO 12625-3 ya makulidwe, kukula, ndi kuchuluka kwapadera. Kufewa kuyenera kuyesedwa padera pogwiritsa ntchito njira zoyesera zapadera monga EMTEC Tissue Softness Analyzer (TSA) kapena Handle-O-Meter. Zinthu izi ndizofunikira kwambiri posinthathaulo lamanja lopangidwa ndi makolo, komwe kuyamwa mwachangu ndi kulimba thupi ndizofunikira kwambiri.

Kuphatikiza apo, ma converter ayenera kuwunika kupanga kwa lint ndi fumbi pamodzi ndi kufanana kwa mbiri ya cross-directional (CD) basis-weight profile. Fumbi lochepa ndilofunika kwambiri kuti malo osinthira akhale oyera komanso kuti zinthu zikhale bwino kwambiri, pomwe mbiri ya CD basis-weight profile imatsimikizira kuti makinawo amapindika nthawi zonse komanso kuti asatuluke pa telescoping.

Kusinthanitsa Pakati pa Virgin ndi Magiredi Ena

Ngakhale madipatimenti ogula zinthu angayesere kuchuluka kwa zinthu zobwezerezedwanso kuti achepetse ndalama, kusinthana kwa zinthu zopangira n’kofunika kwambiri. Virgin wood pulp ili ndi kapangidwe ka ulusi wofanana kwambiri komwe kumatanthauza kuti makina amatha kugwira ntchito bwino, zomwe zimapangitsa kuti pakhale kusweka kochepa kwa intaneti komanso nthawi yochepa yogwira ntchito. Komabe, virgin pulp nthawi zambiri imakhala ndi mtengo wokwera, zomwe zikutanthauza kuti kusweka ndi kutayika kwa zinthu kumagwira ntchito pokhapokha ngati malo oyambira ndi kupitirira kwa zinthuzo zikugwirizana ndi mtengo wokwera wa zinthu zomwe zalowetsedwa.

*Zindikirani: Kutayika kwa zinthu zosinthika ndi zitsanzo; zinyalala zenizeni zimasiyana kwambiri kutengera momwe makina alili, kuwongolera kupsinjika, ndi magiredi enaake a pepala.

Popeza mtengo wa pulp wa virgin umasinthasintha malinga ndi momwe msika ulili, ogula ayenera kuwerengera kuchuluka kwa break-even m'malo moganiza kuti virgin fiber nthawi zonse imapereka mtengo wotsika wa umwini (TCO). Chitsanzo champhamvu cha TCO chiyenera kuganizira nthawi yocheperako yogwira ntchito ya makina komanso kuchuluka kwa zinyalala za virgin rolls poyerekeza ndi zizindikiro za pulp zomwe zilipo pamsika kuti adziwe momwe ndalama zimagwiritsidwira ntchito.

Kutsimikizira kwa Wogula ndi Njira Zosankhira

Kukhazikitsa zofunikira zoyambira ndi miyeso ya magwiridwe antchito ndi gawo loyamba lokha la kugula. Ogula ayenera kuwunika ogulitsa kuti atsimikizire kuti akwaniritsa zomwe zafotokozedwa mu malipoti awo a labu. Kugwiritsa ntchito njira yokhazikika yotsimikizira kumateteza unyolo wogulitsa ku zolakwika zokwera mtengo.

Kuwunikanso Chitsanzo ndi Zolemba za Ogulitsa

Asanapereke chilolezo chogula zinthu zambiri zamalonda, ogula ayenera kupempha chitsanzo cha bukuli kuti ayesere kugwiritsa ntchito zipangizo zawo zosinthira.

Mfundo Zofunika Kwambiri

• Tsimikizirani kuchuluka kwa ulusi wa hardwood ndi softwood virgin chifukwa softwood imalimbitsa mphamvu ya tensile pomwe hardwood imathandizira kufewa ndi kukula.
• Yerekezerani kulemera kwa 12 mpaka 42 GSM ndi chinthu chomwe mukufuna kugwiritsa ntchito, kuyambira minofu yopepuka ya nkhope mpaka matawulo olemera a m'manja kapena zopukutira.
• Pamafunika chinyezi pakati pa 4% ndi 7% kuti muchepetse kuwonongeka kwa njira yoyendera, kusweka, komanso kusweka kwa ukonde panthawi yosintha.
• Tsimikizirani kuwala kwa ISO kwa 86% mpaka 90% pa mitundu ya bleached virgin yomwe imagwiritsidwa ntchito mu zinthu zapamwamba, zokopa alendo, komanso zogulira minofu.
• Yang'anani m'lifupi mwa mpukutu, m'mimba mwake, ndi kukula kwa pakati pa chidebecho pogwiritsa ntchito zida zanu zopumulira, popeza m'mimba mwake mwa mpukutuwo mungakhale pakati pa 1,000 ndi 2,560 mm.
• Yang'anani m'mphepete mwa chitsulo chokulungira, makwinya, mabowo, kulimba kwa caliper, ndi kuphwanya kwapakati musanavomereze kuti muteteze kuthamanga ndi khalidwe la chinthu chomalizidwa.

Mafunso Ofunsidwa Kawirikawiri

Kodi ndi zinthu ziti zomwe ogula ayenera kufunsa asanagule ma tissue parent rolls?

Ogula ayenera kupempha kuti agwiritse ntchito ulusi wosakanizidwa, kuphatikizapo chiŵerengero cha matabwa olimba ndi matabwa ofewa. matabwa olimba amathandiza kuti azitha kugwira ntchito bwino komanso kuti azitha kugwira ntchito mosavuta, pomwe matabwa olimba amathandiza kuti minofu ya nkhope kapena zinthu zapamwamba zikhale zofewa komanso zolemera.

Kodi ndi mtundu wanji wa GSM womwe umapezeka pa ma roll a maparent tissue a virgin wood pulp tissue?

Kulemera kwanthawi zonse kumakhala pakati pa 12 ndi 42 GSM, kutengera mtundu wa chinthu chomwe chagwiritsidwa ntchito. GSM yotsika imakwanira minofu yofewa ya nkhope kapena chimbudzi, pomwe GSM yokwera imayenerera kwambiri matawulo amanja ndi zinthu zopukutira.

N’chifukwa chiyani chinyezi chili chofunika kwambiri mu lipoti la makolo?

Chinyezi nthawi zambiri chiyenera kukhala pakati pa 4% ndi 7%. Mipukutu yoposa 7% imatha kuwonongeka panthawi yoyenda; pansi pa 4%, pepalalo likhoza kusweka ndikuyambitsa kusweka kwa ukonde panthawi yocheka, kukongoletsa, kapena kubweza.

Kodi mipukutu ya minofu ya bleached virgin iyenera kufika pa mulingo wotani wowala?

Pa mitundu ya minofu yoyera bwino, ogula nthawi zambiri ayenera kutsimikizira kuwala kwa ISO kwa pafupifupi 86% mpaka 90%. Izi ndizofunikira makamaka pamalonda ogulitsa, alendo, minofu ya nkhope, ndi zinthu zapamwamba zaukhondo.

Ndi miyeso iti ya mipukutu yomwe iyenera kufufuzidwa kuti igwirizane ndi kusintha?

Ogula ayenera kutsimikizira m'lifupi mwa mipukutu, m'mimba mwake, ndi kukula kwa pakati poyerekeza ndi zomangira zawo zolumikizira. Ma dayamita ofanana amakhala kuyambira 1,000 mpaka 2,560 mm, pomwe ma dayamita amatha kukhala 76 mm, 150 mm, kapena kukulirapo kutengera zida.