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紙箱原紙品種、標準對紙箱產品質量和價格會造成什么影響?

分類:常見(jian)問答(da) 時(shi)間:2020-04-26 10:00:24

不(bu)(bu)同(tong)(tong)(tong)結構、不(bu)(bu)同(tong)(tong)(tong)材質(zhi)的紙(zhi)(zhi)箱(xiang),其(qi)價格也截然(ran)不(bu)(bu)同(tong)(tong)(tong),并(bing)且價格與(yu)原(yuan)紙(zhi)(zhi)的品(pin)種(zhong)(zhong)、質(zhi)量(liang)等級關系較大。制(zhi)作紙(zhi)(zhi)箱(xiang)就是要根據紙(zhi)(zhi)箱(xiang)的使用(yong)特點和運輸條件確定用(yong)紙(zhi)(zhi)品(pin)種(zhong)(zhong)和質(zhi)量(liang), 這(zhe)(zhe)是保持適(shi)度包(bao)裝(zhuang),控制(zhi)生產成本所值得重視的環節。制(zhi)作紙(zhi)(zhi)箱(xiang)的原(yuan)紙(zhi)(zhi)主要包(bao)括白紙(zhi)(zhi)板(ban)、瓦楞紙(zhi)(zhi)、茶板(ban)紙(zhi)(zhi)、普通(tong)箱(xiang)紙(zhi)(zhi)板(ban)和牛皮掛面箱(xiang)紙(zhi)(zhi)板(ban)等, 這(zhe)(zhe)些(xie)原(yuan)紙(zhi)(zhi)的制(zhi)作工藝和材料上(shang)的不(bu)(bu)同(tong)(tong)(tong),標準也有所差異。

涂布(bu)白(bai)(bai)紙(zhi)(zhi)板有(you)(you)白(bai)(bai)底(di)(di)和灰底(di)(di)兩種(zhong),質量等級也(ye)有(you)(you)優等品、一等品、合格品三種(zhong),檢測(ce)的項目有(you)(you):水(shui)分、定(ding)量、定(ding)量偏差、橫(heng)幅(fu)定(ding)量差、緊(jin)度(du)(du)、亮度(du)(du)(白(bai)(bai)度(du)(du))、印(yin)刷表(biao)(biao)面粗糙度(du)(du)、平滑度(du)(du)、印(yin)刷光澤度(du)(du)、油墨吸(xi)收性(xing)、印(yin)刷表(biao)(biao)面強度(du)(du)、吸(xi)水(shui)性(xing)、橫(heng)向挺度(du)(du)和塵埃(ai)度(du)(du)等。白(bai)(bai)紙(zhi)(zhi)板是預印(yin)紙(zhi)(zhi)箱(xiang)面紙(zhi)(zhi)的采(cai)用材料, 白(bai)(bai)紙(zhi)(zhi)板的質量對紙(zhi)(zhi)箱(xiang)的印(yin)刷和強度(du)(du)都有(you)(you)較大的影響。

白(bai)紙板的(de)(de)水(shui)分(fen)(fen)、印(yin)(yin)刷(shua)(shua)表(biao)(biao)面(mian)粗糙(cao)度(du)(du)(du)、平(ping)滑度(du)(du)(du)和(he)表(biao)(biao)面(mian)強(qiang)度(du)(du)(du)等(deng), 對印(yin)(yin)刷(shua)(shua)質量的(de)(de)影響(xiang)比較敏感, 水(shui)分(fen)(fen)對印(yin)(yin)刷(shua)(shua)版面(mian)的(de)(de)套準會有一定(ding)的(de)(de)影響(xiang), 而印(yin)(yin)刷(shua)(shua)表(biao)(biao)面(mian)粗糙(cao)度(du)(du)(du)、平(ping)滑度(du)(du)(du)和(he)表(biao)(biao)面(mian)強(qiang)度(du)(du)(du)指標(biao)對印(yin)(yin)刷(shua)(shua)質量影響(xiang)較大, 如(ru)印(yin)(yin)刷(shua)(shua)油墨層能否(fou)(fou)飽和(he)、紙面(mian)印(yin)(yin)刷(shua)(shua)后能否(fou)(fou)出現脫層和(he)起泡問題。白(bai)紙板的(de)(de)橫向挺度(du)(du)(du)則影響(xiang)到紙箱的(de)(de)抗壓強(qiang)度(du)(du)(du);白(bai)紙板的(de)(de)緊度(du)(du)(du)不(bu)是越高越好(hao),而是規定(ding)不(bu)大于(yu)一個標(biao)準值,如(ru)優等(deng)品(定(ding)量≤300g/m 2)不(bu)大于(yu)0.88g/cm3。

因為(wei)(wei)如(ru)果白紙(zhi)(zhi)(zhi)(zhi)板(ban)的(de)緊(jin)(jin)度(du)(du)(du)(du)過(guo)(guo)高,紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)搖蓋的(de)耐折(zhe)度(du)(du)(du)(du)就會(hui)明顯下降,使用(yong)(yong)(yong)過(guo)(guo)程中搖蓋就容易(yi)出現(xian)斷裂現(xian)象。瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)多(duo)用(yong)(yong)(yong)于紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)瓦(wa)(wa)楞(leng)(leng)(leng)層(ceng)(ceng),也有的(de)用(yong)(yong)(yong)于瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)夾(jia)芯(xin)層(ceng)(ceng)或(huo)里層(ceng)(ceng)。用(yong)(yong)(yong)于瓦(wa)(wa)楞(leng)(leng)(leng)層(ceng)(ceng)的(de)瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi), 它(ta)的(de)質量(liang)(liang)如(ru)何(he)直接影響(xiang)到(dao)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)抗壓強(qiang)(qiang)度(du)(du)(du)(du)。瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)的(de)標準分(fen)(fen)A、B、C、D 4個等(deng)(deng)(deng)(deng)級,A 等(deng)(deng)(deng)(deng)質量(liang)(liang)指(zhi)(zhi)標更高,其(qi)(qi)常規(gui)檢驗(yan)的(de)項(xiang)目有: 水分(fen)(fen)、定量(liang)(liang)、緊(jin)(jin)度(du)(du)(du)(du)、橫(heng)向(xiang)(xiang)環(huan)壓指(zhi)(zhi)數(shu)和(he)裂斷長等(deng)(deng)(deng)(deng), 其(qi)(qi)中橫(heng)向(xiang)(xiang)環(huan)壓指(zhi)(zhi)數(shu)、定量(liang)(liang)和(he)緊(jin)(jin)度(du)(du)(du)(du)指(zhi)(zhi)標,對瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)的(de)邊壓強(qiang)(qiang)度(du)(du)(du)(du)影響(xiang)較(jiao)大。箱(xiang)(xiang)板(ban)紙(zhi)(zhi)(zhi)(zhi)一般(ban)用(yong)(yong)(yong)于紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)面紙(zhi)(zhi)(zhi)(zhi)或(huo)里紙(zhi)(zhi)(zhi)(zhi),其(qi)(qi)質量(liang)(liang)對紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)強(qiang)(qiang)度(du)(du)(du)(du)影響(xiang)較(jiao)大。普通箱(xiang)(xiang)板(ban)紙(zhi)(zhi)(zhi)(zhi)和(he)牛皮掛(gua)面箱(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)板(ban)分(fen)(fen)為(wei)(wei)優(you)等(deng)(deng)(deng)(deng)品、一等(deng)(deng)(deng)(deng)品、合格品3種。檢測的(de)項(xiang)目有:水分(fen)(fen)、定量(liang)(liang)、緊(jin)(jin)度(du)(du)(du)(du)、橫(heng)向(xiang)(xiang)環(huan)壓指(zhi)(zhi)數(shu)、耐破(po)指(zhi)(zhi)數(shu)、正(zheng)反(fan)面吸水性、橫(heng)向(xiang)(xiang)耐折(zhe)度(du)(du)(du)(du)等(deng)(deng)(deng)(deng), 其(qi)(qi)中橫(heng)向(xiang)(xiang)環(huan)壓指(zhi)(zhi)數(shu)、耐破(po)指(zhi)(zhi)數(shu)和(he)定量(liang)(liang)對瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)的(de)耐破(po)度(du)(du)(du)(du)、戳穿強(qiang)(qiang)度(du)(du)(du)(du)和(he)邊壓強(qiang)(qiang)度(du)(du)(du)(du)影響(xiang)明顯,這些(xie)都是生產工藝實踐所(suo)證明的(de)客觀事實。

所以(yi),原紙(zhi)(zhi)(zhi)(zhi)作為紙(zhi)(zhi)(zhi)(zhi)箱(xiang)質量(liang)的(de)源(yuan)頭(tou)環節(jie), 必須進行嚴密、有效的(de)控制。主要(yao)做法(fa)有:采(cai)購時在(zai)合同中要(yao)明確原紙(zhi)(zhi)(zhi)(zhi)采(cai)購的(de)品(pin)種、質量(liang)等級(ji)和(he)(he)標(biao)準(zhun)項(xiang)目(mu)的(de)要(yao)求,檢(jian)驗(yan)項(xiang)目(mu)、標(biao)準(zhun)值可(ke)以(yi)參照相(xiang)關的(de)國(guo)標(biao), 也可(ke)以(yi)由供(gong)需(xu)雙方(fang)約定。應根據產品(pin)的(de)特點確定原紙(zhi)(zhi)(zhi)(zhi)的(de)標(biao)準(zhun)和(he)(he)檢(jian)驗(yan)項(xiang)目(mu),如可(ke)對瓦楞(leng)紙(zhi)(zhi)(zhi)(zhi)、箱(xiang)板(ban)紙(zhi)(zhi)(zhi)(zhi)增加施(shi)膠度(du)(du)的(de)檢(jian)測項(xiang)目(mu), 因為原紙(zhi)(zhi)(zhi)(zhi)表面如果施(shi)膠度(du)(du)好, 原紙(zhi)(zhi)(zhi)(zhi)就不易吸濕, 裱貼時粘合劑吸收量(liang)相(xiang)應也少, 有利于紙(zhi)(zhi)(zhi)(zhi)板(ban)的(de)干燥和(he)(he)提高紙(zhi)(zhi)(zhi)(zhi)箱(xiang)強(qiang)度(du)(du)。

此外,就是要(yao)對采(cai)購的(de)原紙進行驗收,按標準、按合同規(gui)定的(de)規(gui)則進行檢驗,這是保證采(cai)購質量(liang)(liang)的(de)重要(yao)一環。因為買(mai)(mai)原紙不是簡單的(de)買(mai)(mai)品(pin)種、買(mai)(mai)數量(liang)(liang),而(er)是買(mai)(mai)原紙的(de)標準和質量(liang)(liang), 可以說, 買(mai)(mai)合格的(de)原紙,是降低(di)生(sheng)產成本,提(ti)高紙箱(xiang)質量(liang)(liang)的(de)基礎(chu)。

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