Nadiifinta saxarka waxaa loola jeedaa heerka maadada cellulose-ka iyo cadadka wasakhda ku jirta saxarka. Saxarka ku habboon waa inuu qani ku ahaadaa cellulose, halka waxa ku jira hemicellulose, lignin, ash, soosaarayaasha iyo qaybaha kale ee aan unugyadu ahayn ay noqdaan kuwa hooseeya sida ugu macquulsan. Waxa ku jira cellulose ayaa si toos ah u go'aamiya nadiifnimada iyo qiimaha la isticmaali karo ee saxarka, waana mid ka mid ah tilmaamayaasha ugu muhiimsan ee lagu qiimeeyo tayada saxarka. Astaamaha saxarka nadiifnimada sare:
(1) adkeysiga sare, cellulose waa qaybta ugu muhiimsan ee ka kooban xoogga warqadda, saafiga sare ee nadiifka ah macnaheedu waa maadada cellulose sare, sidaas darteed warqadda la sameeyay ayaa leh caabbinta jeexjeexa oo xoog badan, caabbinta laalaabida iyo sifooyinka kale ee jirka iyo farsamada, kordhinta nolosha adeegga warqad.
(2) Isku-xidhka xooggan, fiilooyinka cellulose-ka saafiga ah waxay samayn karaan shabakad isku xidhan oo u dhaxaysa warqadda si kor loogu qaado isku-xidhka gudaha, si aanay warqaddu u fududayn in la daboolo ama la jebiyo marka la hoos geeyo xoogagga dibadda, si kor loogu qaado xoogga guud ee warqadda. .
(3) Cadaan sare, joogitaanka wasakhdu waxay inta badan saameeyaan cadaanka iyo dhalaalka warqadda. Saxarka nadiifka ah ee sarreeya, sababtoo ah ka saarista inta badan wasakhda midabka leh, waxay ka dhigaysaa warqaddu inay muujiso cadcad dabiici ah oo sarreeya, taas oo ku habboon daabacaadda, qorista iyo baakadaha, iwm, waxayna kor u qaadaysaa muuqaalka muuqaalka alaabta.
(4) sifooyinka korantada ee ka fiican, cellulose waxay leedahay sifooyin wanaagsan oo daboolaya, halka qaybaha aan cellulose-ka ahayn ee saxarka, sida lignin, laga yaabo inay ku jiraan walxo korantada ama hygroscopic, oo saameeya korantada korantada ee waraaqaha. Sidaa darteed, warqad ka samaysan saxarka nadiifka sare leh waxay leedahay codsiyo badan oo kala duwan oo ku saabsan injineernimada korantada, sida warqadda xargaha xargaha, xaashida capacitor, iwm.
Diyaarinta saxarka nadiifka ah ee sare, warshadaha waraaqaha casriga ah waxay isticmaalaan habab kala duwan oo heer sare ah oo garaacid, sida kiimikaad pulping (oo ay ku jiraan sulfate pulping, sulfite pulping, iwm.), dhuuqida farsamada (sida kuleyl shiidi saxarka farsamada TMP) iyo kiimikaad farsamaysan tuujin (CMP). ) iyo wixi la mida. Nidaamyadani waxay hagaajiyaan nadiifnimada saxarka iyagoo meesha ka saaraya ama beddelaya qaybaha aan unugga ahayn ee alaabta ceeriin.
Saxarka saafiga ah ee sareeya ayaa si weyn loogu isticmaalaa meelo badan sida warqad dhaqameed heer sare ah, warqad baakad ah, warqad khaas ah (tusaale, warqad dahaarka korantada, warqad filter, warqad caafimaad, iwm.) iyo waraaqaha guriga, kaas oo buuxinaya heerka sare ee tayada waraaqaha looga baahan yahay warshado kala duwan.
Waraaqda Yashi kaliya waxay samaysaa 100% saxarka bamboo bikrad ah, hal ci bamboo fibre ah, kaas oo ah doorashada ugu fiican ee nadiifnimo sare iyo warqad guri oo tayo sare leh.
Waqtiga post: Seb-27-2024
