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如何根據原紙的特性合理安排瓦楞紙板加工工藝?

分類(lei):常見問答 時間(jian):2020-04-26 10:10:29

原紙(zhi)(zhi)(zhi)(zhi)(zhi)材(cai)料(liao)特(te)性的不同, 對紙(zhi)(zhi)(zhi)(zhi)(zhi)箱生產線的生產效率(lv)和質量(liang)的影(ying)響, 在(zai)日常工藝中也比較突出,如瓦(wa)楞生產線配紙(zhi)(zhi)(zhi)(zhi)(zhi)不合(he)理,容(rong)易造(zao)成瓦(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)板卷曲強(qiang)度下降:瓦(wa)楞層原紙(zhi)(zhi)(zhi)(zhi)(zhi)質量(liang)不好,則影(ying)響紙(zhi)(zhi)(zhi)(zhi)(zhi)箱的抗(kang)壓強(qiang)度較硬、不平整(zheng)的面紙(zhi)(zhi)(zhi)(zhi)(zhi)、瓦(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)板裱貼(tie)后容(rong)易出現脫膠(jiao)、起(qi)泡等質量(liang)問(wen)題(ti),裱貼(tie)消(xiao)耗將明顯(xian)增加。

一般(ban)瓦(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)板(ban)是(shi)由箱板(ban)紙(zhi)(zhi)(zhi)和(he)(he)(he)瓦(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)粘合組成的(de), 如果(guo)瓦(wa)(wa)(wa)紙(zhi)(zhi)(zhi)和(he)(he)(he)里紙(zhi)(zhi)(zhi)之(zhi)間(jian)的(de)含水率懸(xuan)殊(shu)過大(da),那么(me),原紙(zhi)(zhi)(zhi)在吸(xi)收粘合劑和(he)(he)(he)加熱以(yi)(yi)后,紙(zhi)(zhi)(zhi)的(de)伸(shen)縮變(bian)化將會有明(ming)顯差異(yi),這就(jiu)容易造成紙(zhi)(zhi)(zhi)板(ban)卷曲, 使紙(zhi)(zhi)(zhi)箱的(de)強度下降。所以(yi)(yi),合理(li)配(pei)紙(zhi)(zhi)(zhi)十分(fen)重要,原紙(zhi)(zhi)(zhi)上機前應(ying)對含水率進行檢測,將含水率相對比較(jiao)接近的(de)箱板(ban)紙(zhi)(zhi)(zhi)和(he)(he)(he)瓦(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)進行配(pei)套生(sheng)產, 以(yi)(yi)防止和(he)(he)(he)減少紙(zhi)(zhi)(zhi)板(ban)出現卷曲。

瓦(wa)楞(leng)層原紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)質(zhi)量(liang)如何,對(dui)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)整體抗(kang)(kang)(kang)壓(ya)強度(du)(du)的(de)(de)影響(xiang), 比里紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、面紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)對(dui)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)抗(kang)(kang)(kang)壓(ya)強度(du)(du)的(de)(de)影響(xiang)更(geng)(geng)大,所以, 選擇環壓(ya)指(zhi)數高的(de)(de)瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)或箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)作為瓦(wa)楞(leng)層的(de)(de)用紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),是生產工藝控制值得重視的(de)(de)問題(ti)。對(dui)長途運輸(shu)、、易爆商品的(de)(de)外(wai)包裝紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang),更(geng)(geng)好(hao)用高強度(du)(du)瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)或箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)作為瓦(wa)楞(leng)用紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi), 這樣可大大提高紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)抗(kang)(kang)(kang)壓(ya)強度(du)(du),較好(hao)地保護商品。此(ci)外(wai), 對(dui)預印面紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)裱(biao)貼(tie)(tie)時, 當面紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)較硬、平整度(du)(du)又不好(hao)時,若(ruo)安排在手工操作的(de)(de)貼(tie)(tie)面機上進行裱(biao)貼(tie)(tie),就容(rong)易出現起泡(pao)和(he)脫(tuo)膠質(zhi)量(liang)問題(ti)。

根據以往生產(chan)的實踐經驗, 將壓光的面紙安排在自動(dong)覆面機(ji)上進行裱貼比較合適, 因(yin)為這種(zhong)機(ji)器有加壓裝置(zhi)有利于(yu)保(bao)證裱貼的平整和牢(lao)固(gu),可較好地保(bao)證紙板的加工質量。

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