CMC imagwiritsa ntchito Pakampani Yamapepala

Mapepala a CMCzachokera mapadi monga chuma chachikulu zopangira, pambuyo alkalization ndi kopitilira muyeso-zabwino mankhwala, ndiyeno kudzera angapo mankhwala zimachitikira monga crosslinking, etherification ndi acidification zopangidwa anion polima ndi dongosolo etere chomangira. Chomaliza chake ndi ufa woyera kapena wopepuka wachikasu kapena granular kanthu. Zopanda poizoni, zosakoma, zopanda fungo, zosunga madzi bwino, komanso kumeta ubweya wabwino kwambiri.

Udindo Waukulu wa CMCSodium carboxymethyl cellulose m'makampani opanga mapepala:

CMC imagwiritsidwa ntchito popanga zokutira zamapepala. Carboxymethyl cellulose imatha kuonjezera kuchuluka kwa chinyezi cha zokutira kuti ziteteze kusuntha kwa zomatira zosungunuka m'madzi kupita ku pepala, kuti muwonjezere kuchuluka kwa zokutira ndikuwongolera mtundu wa zokutira.

Chifukwa CMC ndi zomatira zabwino ndithu, kotero mphamvu zomatira ndi zabwino kwambiri, carboxymethyl mapadi akhoza m'malo 3-4 kusinthidwa wowuma kapena 2-3 wowuma zotumphukira, pa nthawi yomweyo akhoza kuchepetsa kuchuluka kwa latex, kuthandiza kusintha ❖ kuyanika olimba okhutira. .

Pa nthawi yopaka imatha kusewera zokometsera, kulimbitsa kupatukana kwa filimuyo, chiŵerengero chopanga filimu ndi chabwino kwambiri, chingapangitse filimu yolimba yopitilira kukhala ndi kuwala kwabwino, kupewa "peel lalanje" mkhalidwe. Mankhwala a sodium carboxymethyl cellulose CMC adatchulapo pseudoplastic, katundu wa carboxymethyl cellulose amatha kupanga zokutira kukhala ndi "pseudoplastic", zomwe zimapangitsa kuti zokutira zoonda pakumeta ubweya wambiri, makamaka zoyenera zokutira zolimba kwambiri kapena zokutira zothamanga kwambiri.

Chifukwa njira amadzimadzi a CMC ali kukana enzymatic hydrolysis ndi inert kagayidwe, ❖ kuyanika ali bata wabwino, amene akuwonetseredwa kukhalabe homogeneity wa ❖ kuyanika, kotero kuti ❖ kuyanika si kophweka kuwonongeka pa nthawi yosungirako. Chachiwiri, CMC imagwiritsidwa ntchito ngati kukula kwa mapepala. Kukula kwa pepala kumatha kukulitsa kuuma, kusalala, komanso kukulitsa kulimba kwake komanso kupezeka kwake.

CMCImatha kuwongolera kupindika ndikupeza kukwanira bwino kosindikiza. Kuonjezera gawo lina la CMC pakukula kwapamwamba kumatha kupangitsa kuti pamwamba pakhale kusindikiza bwino, ndipo nkhope yosindikiza imatha kumveketsa bwino kusindikiza kwamitundu ndikusunga inki. Yankho lamadzi la CMC lili ndi mapangidwe abwino kwambiri a filimu, chifukwa chake CMC pamlingo wocheperako imathandizira kupanga filimu yopangira singing papepala, kuti ipititse patsogolo kukula kwa mawonekedwe.

Komabe, chifukwa cha mtengo wapamwamba wa CMC, nthawi zambiri amagwiritsidwa ntchito pamapepala omwe ali ndi zofunikira zapadera (mapepala a banknote, mapepala achitetezo, mapepala okongoletsera, mapepala otulutsa pansi ndi mapepala apamwamba omatira awiri).

CMC ntchito mu chonyowa mapeto a pepala makina kuwonjezera, m'mbuyomu, sodium carboxymethyl mapadi CMC mu papermaking mafakitale zimagwiritsa ntchito ❖ kuyanika ndi pamwamba sizing, zamkati ndi luso la sayansi ndi luso, m'zaka zaposachedwapa mayiko ali kwambiri. opanga mapepala kudzera kumapeto konyowa CMC idawonjezedwa kuti zinthu zizikhala bwino ndipo zomwe apindula nazonso ndizofunikira kwambiri.

Kuonjezera CMC kumapeto kwamvula kumapereka maubwino ambiri:

1.Kuwongolera evenness wa pepala CMC ndi dispersant wabwino kwambiri, kupasuka kukhala colloidal reagent CMC ndi anawonjezera pa matenda a slurry pambuyo mosavuta pamodzi ndi zamkati CHIKWANGWANI ndi kudzaza particles zakuthupi, chifukwa cha ntchito electronegative CMC ndi kusungunuka m'madzi, izo zidzapanga yokha. ali kale ndi ulusi wa pepala ndi tinthu tating'onoting'ono tomwe timatulutsa ma electronegativity, Tinthu tating'onoting'ono tomwe timapanga timadzi timene timatulutsa timadzi timene timatulutsa timadzi timene timatulutsa timadzi timene timatulutsa timadzi tambiri tomwe timapangana, ndipo ulusi ndi kudzaza mu kuyimitsidwa kwa pepala zidzagawidwa mofanana, zomwe zimakhala zabwino kwambiri pakupanga pepala. makampani, ndiyeno kukulitsa kufanana kwa pepala.

2. Kupititsa patsogolo mphamvu ya thupi la zamkati kumapangitsanso kufanana kwa zamkati kumathandiza kuonjezera kuchulukana kwa thupi (monga: kachulukidwe kawonekedwe, kung'ambika, kutalika kwa fracture, kukana kusweka ndi kupindika), CMC pakusintha kufanana kwa pepala nthawi yomweyo kumawonjezera thupi mphamvu zamkati. CMC dongosolo lili carboxymethyl akhoza kumwa hydroxyl pa CHIKWANGWANI kutsogolera pawiri anachita, phatikiza mphamvu zomangira pakati ulusi, mwa thupi kupanga ndondomeko kupanga kuseri kwa makina pepala, mphamvu zomangira pakati ulusi adzakhala kwambiri kuchuluka, zotsatira za thupi lalikulu pa pepala tsamba ndi zonse kuwonjezeka kwa thupi kuuma.

Mapepala a CMC amagwiritsa ntchito:

M'makampani opanga mapepala, CMC imagwiritsidwa ntchito popanga, zomwe zimatha kupititsa patsogolo kusungirako ndikuwonjezera mphamvu yonyowa. Amagwiritsidwa ntchito ngati kukula kwa pigment, kuwongolera zomatira mkati, kuchepetsa fumbi losindikiza, kukonza zosindikiza; Ntchito ❖ kuyanika pepala, ndi yabwino kwa kubalalitsidwa ndi fluidity wa pigment, kumapangitsanso pepala kusalala, kusalala, katundu kuwala ndi kusinthasintha kusindikiza. M'makampani opanga mapepala monga mtengo wothandiza komanso zowonjezera zambiri, makamaka chifukwa cha mapangidwe ake a filimu ya polima osungunuka ndi madzi komanso kukana mafuta.

●Amagwiritsidwa ntchito popanga mapepala, kuti pepala likhale ndi kachulukidwe kwambiri, kukana bwino kwa inki, kusonkhanitsa sera komanso kusalala.

●Ikhoza kusintha boma lamkati la fiber viscosity, kuti lipititse patsogolo mphamvu ya pepala ndi kukana kupindika.

●Pakupanga utoto pamapepala ndi mapepala, CMC imathandizira kuwongolera kutuluka kwa phala lamtundu komanso kuyamwa kwa inki.

Nthawi zambiri, mlingo woyenera ndi 0.3-1.5%.