Newsprint ine huremu hwakaderera, kuchena kwakaderera uye huwandu hwakanaka, nekufambira mberi kwehunyanzvi hwekugadzira, newsprint inoshandiswa zvishoma nezvishoma kudhinda kwemavara;bepa rakavharwa yakaputirwa pamusoro pepepa repasi, iyo ine kutsetseka kwepamusoro, kuchena kwepamusoro uye kupenya kwakakwirira, ruvara rwekudhinda rwakajeka, zvidimbu zvakajeka, uye zvinowanzoshandiswa pakudhindwa kwezvigadzirwa zvakanaka; iyo yakavharwa bhodhi chena ndeyekuputira pamusoro peiyo chena bhodhi, iyo ine yakanaka kutsvedzerera, yakanaka kupenya uye yakakwirira kuoma, uye inowanzoshandiswa pakurongedza chigadzirwa. Pane misiyano yezvinhu zvemuviri zvakaita sekutsvedzerera, kupenya, kunyudza inki, kuchena, uye kuwanda kwemapepa matatu aya.
Mushure mekuedza bvunzo, newsprint ine yakanyanya kuwanda, iyo yakaderera kuchena, yakanyanya PPS roughness, yakaipisisa gloss, uye yakaderera opacity; theart paper ine yakanyanya kusimba, yakanyanya kuchena, yakaderera PPS roughness, yakanakisa kupenya, uye kupenya. High; Yakavharwa chena mapepa ane zviri nani kuwanda, kuchena kwepamusoro, kuderera kwePPS roughness uye kupenya kuri nani. Iyo pulp yekugadzirwa kwebepanhau ndeye mechanical pulp, inochengeta lignin zvakanyanya sezvinobvira panguva yekugadzirwa, nekuchena kwakaderera uye huwandu hwakanaka, asi nhau ine huremu hwakaderera uye yakaderera opacity kana ichienzaniswa nebepa rakavharwa. Pepa rakaputirwa uye bhodhi jena rakaputirwa nepende pamusoro pechigadziko chebepa, uye pigment iri mumucheka inozadza kusaenzana kwakadzika pamapepa. Mushure mekuita calendering uye kupedza, pigment particles inorongwa nenzira inotungamira, iyo inoderedza kushata kwepepa rakaputirwa uye chena bhodhi PPS uye inowedzera kutsetseka. Sezvo kupenya kunonyanya kuenderana nekutsvedzerera kwepepa repamusoro, kupenya kwebepa (bhodhi) kuri mukupesana nekukasharara kwePPS, ndiko kuti, bepa rakaputirwa > chena kadhibhodhi > newsprint.
Kudhinda kupenya kunokanganiswa nekutsvedzerera kwepepa repamusoro uye inki absorption performance. Pepa rinoputira rinogona kuvandudza zvakanyanya kudhinda kupenya kwepepa. Kumusoro kwepepanhau kwakakasharara uye kunotora inki yakanaka. Kudhinda kupenya kunongova 17.6%, uye kutsetseka kwepamusoro kwepepa rakagadzirwa nemifananidzo zvakakwirira. , Kupinza kweinki kuri pakati nepakati, gloss yekudhinda i86.6%, uye gloss yekudhinda yebhodhi chena yakavharwa ndeye 82.4%.
Mapepa ane inki yakapfava zviri pakati nepakati, uye gloss yakakwirira, anoburitsa mavara akazara. Bepa rematte iro rinonyura 100% richadhinda mavara asina kunaka. Kushanda kwebepa pamusoro pepepa rakavharwa ndiro rakanyanya kukwirira, richiteverwa nekavharwa bhodhi jena, uye kushanda kwebepa pamusoro pepepanhau ndiro rakaderera. Kudzikisa zvakafanira kunyudzwa kweinki kwebepanhau uye kuderedza kushata kwePPS kwebepanhau kuchabatsira kuvandudza kunaka kwepepa rayo.
Nguva yekutumira: Aug-29-2022