Kodi pali kusiyana kotani pakati pa bolodi la Ivory ndi Duplex board?

Duplex board amapangidwa kuchokera pamwamba zamkati ndi pansi zamkati. Kapangidwe kake kameneka kagawika m'munsi, chigawo chapakati, chosanjikiza, pamwamba, ndi ❖ kuyanika. Mtundu wa pansi pa pepala loyera ndi wotuwa. Zimapangidwa kuchokera ku nyuzipepala ya zinyalala ndi deinking, kotero kuti mapangidwe a pansi ndi osakanikirana kwambiri; pamwamba ndi yoyera, ndi ❖ kuyanika kopyapyala kosakanikirana ndi zinthu zopangidwa ndi mankhwala monga ufa wa kaolin ndi zomatira. Chosanjikiza chapamwamba (chokutidwa pamwamba) chimakhala ndi kuyera kwakukulu, kuyamwa kwa inki yabwino, kusalala ndi gloss yosindikiza, ndipo makatoni omwewo amakhala ndi kuuma kwabwino komanso kukana kupindika. Pambuyo pa pepala la duplex litakutidwa, ntchito yapamtunda yakhala yabwino kwambiri. Ikhoza kukwaniritsa zofunikira za mtundu wosindikizira wapamwamba kwambiri, ukhoza kukhala wamtengo wapatali kwa mabokosi opangira zinthu zapakati komanso zapamwamba.

Foling box board ndi makatoni oyera okhuthala komanso olimba. Amapangidwa ndi 100% bleached kraft wood zamkati ndipo adamenyedwa kwaulere. Amapangidwa powonjezera zodzaza zoyera monga talc ndi barium sulfate pamakina a pepala a Fourdrinier ndikukonzedwa ndi ma Calendar kapena embossing.

Pali kusiyana koonekeratu mu absorbency ndi roughness pakati pa duplex board ndi FBB.FBB ali ndi absorbency yapamwamba komanso kutsika kwapakati. Kuchuluka kwa absorbency kungapangitse kuti madontho apindule mosavuta, pamene kutsika kwapakati kumapangitsa kuti pepala likhale lochepa kwambiri posindikiza, ndipo zimafuna filimu yochepetsetsa ya inki, yomwe imathandizira kuchepetsa madontho. Chifukwa chake, duplex board ndi yotsika kwa FBB potengera kubwezeredwa kwa kamvekedwe.

Kusalala kwa mapepala, gloss ndi absorbency ndizofunikiranso. Kusalala kwapamtunda kwa FBB ndikokwera kwambiri. Inkiyo ikasindikizidwa pamapepala, capillary mu nsanjika yokutira imatenga mofanana, ngakhale kuchuluka kwa inki kumakhala kochepa, kungathe kutsimikizira kuti kusuntha kwakukulu. Ndizokhazikika ndipo zimatha kupanga filimu yofananira komanso youma ya inki. Kuwala kwa nkhani yosindikizidwa ndi yabwino kwambiri, mtundu wake ndi wowala, ndipo zigawozo zimakhala zolemera. Pepalali limakhala losalala kwambiri, lowoneka bwino kwambiri, lonyezimira bwino, ndipo kuwalako kukadutsa pansanjika ya inki ndikugunda papepala, kuwala kochuluka kumadutsanso mu inki wosanjikiza mwa mawonekedwe owoneka bwino, ndikulowa mkati mwa wowonera. maso. Ndi gawo ili lokha la kuwala lomwe lingawonetse mawonekedwe amtundu wa inki. Kumbali ina, bolodi la duplex lili ndi pores lalikulu kwambiri, pamwamba pake, voliyumu ya inki yochepa, pepala silingathe kukhudzana ndi inki yosindikizira, ndipo kutengerako kumakhala kochepa; pamene voliyumu ya inki ndi yayikulu, kutengerako kumakhala kokwera kwambiri, kuyamwa kumakhala kopitilira muyeso, ndipo zomangira zambiri mu inki zimatengedwa ndi pepala, tinthu tating'ono ta pigment sitetezedwa mokwanira, inkiyo sifulumira, komanso mtundu wake. ndi zopusa.