浙江海運紙箱爆線問題可通過空氣濕度變化調整紙板下線水分改善
分類:公司新聞 時間(jian):2020-05-06 13:24:00
海(hai)運紙箱(xiang)爆線(xian)(xian)(xian)跟紙板(ban)(ban)(ban)(ban)水(shui)分(fen)(fen)有(you)直(zhi)接(jie)關系,解決(jue)爆線(xian)(xian)(xian)問題(ti)就是解決(jue)紙板(ban)(ban)(ban)(ban)水(shui)分(fen)(fen)問題(ti),在冬(dong)季空(kong)氣濕度為零的(de)時(shi)候,生產的(de)紙板(ban)(ban)(ban)(ban)在空(kong)氣停留(liu)一段時(shi)間后紙板(ban)(ban)(ban)(ban)的(de)水(shui)分(fen)(fen)就會流失(shi),當紙板(ban)(ban)(ban)(ban)水(shui)分(fen)(fen)小(xiao)于(yu)8% 時(shi),印刷開槽(cao)時(shi)壓線(xian)(xian)(xian)就會出(chu)現爆線(xian)(xian)(xian),跟蹤紙板(ban)(ban)(ban)(ban)24 小(xiao)時(shi)水(shui)分(fen)(fen)變化,當紙板(ban)(ban)(ban)(ban)水(shui)分(fen)(fen)小(xiao)于(yu)8% 時(shi)就要增加紙板(ban)(ban)(ban)(ban)的(de)下線(xian)(xian)(xian)水(shui)分(fen)(fen),滿足紙板(ban)(ban)(ban)(ban)印刷開槽(cao)時(shi)紙板(ban)(ban)(ban)(ban)水(shui)分(fen)(fen)不低于(yu)8% 的(de)要求,防(fang)止海(hai)運紙箱(xiang)爆線(xian)(xian)(xian)。
紙(zhi)板的(de)(de)下線(xian)水分(fen)跟(gen)制膠(jiao)的(de)(de)倍水率(lv)有直接(jie)關系,倍水率(lv)增加時紙(zhi)板的(de)(de)下線(xian)水分(fen)就會增加,通(tong)過淀(dian)粉(fen)用(yong)量的(de)(de)統計AB 楞(leng)的(de)(de)淀(dian)粉(fen)用(yong)量:20 g/m2,原(yuan)紙(zhi)水分(fen)為:8%。五層紙(zhi)板配紙(zhi):200g×120g×120g×120g×200g=760g。(AB 楞(leng)淀(dian)粉(fen)=20g/m2,原(yuan)紙(zhi)水分(fen)=8%,紙(zhi)板
重量=760g)
當水與淀粉為3.2比1時通過計算,紙板(ban)的下線(xian)水分:14.78%。
當(dang)水(shui)與淀粉為3.5比(bi)1時通(tong)過計算,紙板(ban)的下線(xian)水(shui)分(fen):15.3%。
當(dang)水(shui)比(bi)淀粉為4.0比(bi)1時(shi)通過計算,紙板(ban)的下(xia)線(xian)水(shui)分:16.3%。
根據(ju)空氣(qi)濕度的(de)變(bian)化(hua),調整制膠中的(de)水(shui)與淀粉(fen)的(de)比例,滿(man)足紙板的(de)下線(xian)水(shui)分(fen),達到紙板印刷前的(de)紙板水(shui)分(fen)不小(xiao)于8% 的(de)要求,防止海(hai)運(yun)紙箱爆線(xian)。
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