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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:常見問答 時間:2020-04-26 10:00:24

不(bu)同(tong)(tong)(tong)結構、不(bu)同(tong)(tong)(tong)材(cai)質的(de)(de)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang),其價格也截然不(bu)同(tong)(tong)(tong),并(bing)且價格與(yu)原紙(zhi)(zhi)(zhi)(zhi)的(de)(de)品種(zhong)、質量等級(ji)關系較大(da)。制(zhi)作(zuo)(zuo)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)就(jiu)是(shi)(shi)要根據紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)(de)使(shi)用特(te)點(dian)和運輸(shu)條件(jian)確定(ding)用紙(zhi)(zhi)(zhi)(zhi)品種(zhong)和質量, 這是(shi)(shi)保(bao)持適(shi)度包(bao)裝(zhuang),控制(zhi)生產成本所值得重視的(de)(de)環節(jie)。制(zhi)作(zuo)(zuo)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)(de)原紙(zhi)(zhi)(zhi)(zhi)主要包(bao)括白紙(zhi)(zhi)(zhi)(zhi)板、瓦楞紙(zhi)(zhi)(zhi)(zhi)、茶(cha)板紙(zhi)(zhi)(zhi)(zhi)、普通箱(xiang)(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)板和牛皮掛面箱(xiang)(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)板等, 這些原紙(zhi)(zhi)(zhi)(zhi)的(de)(de)制(zhi)作(zuo)(zuo)工藝和材(cai)料(liao)上的(de)(de)不(bu)同(tong)(tong)(tong),標準也有所差異。

涂布白(bai)紙(zhi)板有白(bai)底和(he)灰(hui)底兩種,質量等(deng)級也有優(you)等(deng)品(pin)、一等(deng)品(pin)、合格品(pin)三種,檢測(ce)的(de)(de)項目有:水(shui)分(fen)、定量、定量偏差(cha)、橫幅定量差(cha)、緊度(du)(du)、亮(liang)度(du)(du)(白(bai)度(du)(du))、印(yin)(yin)刷表面粗糙(cao)度(du)(du)、平滑度(du)(du)、印(yin)(yin)刷光(guang)澤度(du)(du)、油墨吸(xi)收性、印(yin)(yin)刷表面強(qiang)度(du)(du)、吸(xi)水(shui)性、橫向挺度(du)(du)和(he)塵埃(ai)度(du)(du)等(deng)。白(bai)紙(zhi)板是預印(yin)(yin)紙(zhi)箱面紙(zhi)的(de)(de)采(cai)用材(cai)料, 白(bai)紙(zhi)板的(de)(de)質量對紙(zhi)箱的(de)(de)印(yin)(yin)刷和(he)強(qiang)度(du)(du)都有較大的(de)(de)影(ying)響(xiang)。

白(bai)紙板的水分(fen)、印(yin)刷(shua)表面(mian)(mian)粗糙度(du)(du)(du)(du)、平滑度(du)(du)(du)(du)和表面(mian)(mian)強度(du)(du)(du)(du)等(deng), 對印(yin)刷(shua)質量(liang)的影響比較敏感, 水分(fen)對印(yin)刷(shua)版面(mian)(mian)的套準會有一定(ding)的影響, 而印(yin)刷(shua)表面(mian)(mian)粗糙度(du)(du)(du)(du)、平滑度(du)(du)(du)(du)和表面(mian)(mian)強度(du)(du)(du)(du)指標(biao)對印(yin)刷(shua)質量(liang)影響較大, 如印(yin)刷(shua)油墨層能(neng)否(fou)飽和、紙面(mian)(mian)印(yin)刷(shua)后(hou)能(neng)否(fou)出現脫層和起泡問(wen)題。白(bai)紙板的橫向挺度(du)(du)(du)(du)則(ze)影響到(dao)紙箱的抗壓強度(du)(du)(du)(du);白(bai)紙板的緊度(du)(du)(du)(du)不(bu)是越(yue)高(gao)越(yue)好,而是規定(ding)不(bu)大于(yu)一個標(biao)準值,如優(you)等(deng)品(定(ding)量(liang)≤300g/m 2)不(bu)大于(yu)0.88g/cm3。

因為(wei)如果(guo)白紙(zhi)(zhi)(zhi)(zhi)板的緊(jin)度(du)(du)(du)(du)過高(gao),紙(zhi)(zhi)(zhi)(zhi)箱搖蓋(gai)(gai)的耐(nai)折(zhe)度(du)(du)(du)(du)就(jiu)會明(ming)(ming)(ming)顯下降,使用過程中(zhong)(zhong)搖蓋(gai)(gai)就(jiu)容易出現斷裂(lie)現象。瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)多用于紙(zhi)(zhi)(zhi)(zhi)箱的瓦(wa)楞(leng)層(ceng),也(ye)有(you)的用于瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)板夾芯層(ceng)或里(li)層(ceng)。用于瓦(wa)楞(leng)層(ceng)的瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi), 它的質量(liang)(liang)(liang)(liang)如何直(zhi)接影(ying)響到紙(zhi)(zhi)(zhi)(zhi)箱的抗(kang)壓(ya)強(qiang)(qiang)度(du)(du)(du)(du)。瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)的標(biao)準分A、B、C、D 4個等(deng)級,A 等(deng)質量(liang)(liang)(liang)(liang)指(zhi)標(biao)更高(gao),其常規檢(jian)驗的項(xiang)目(mu)有(you): 水分、定(ding)(ding)量(liang)(liang)(liang)(liang)、緊(jin)度(du)(du)(du)(du)、橫向環壓(ya)指(zhi)數(shu)(shu)(shu)和(he)(he)裂(lie)斷長等(deng), 其中(zhong)(zhong)橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、定(ding)(ding)量(liang)(liang)(liang)(liang)和(he)(he)緊(jin)度(du)(du)(du)(du)指(zhi)標(biao),對(dui)瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)板的邊壓(ya)強(qiang)(qiang)度(du)(du)(du)(du)影(ying)響較(jiao)大。箱板紙(zhi)(zhi)(zhi)(zhi)一般用于紙(zhi)(zhi)(zhi)(zhi)箱面(mian)紙(zhi)(zhi)(zhi)(zhi)或里(li)紙(zhi)(zhi)(zhi)(zhi),其質量(liang)(liang)(liang)(liang)對(dui)紙(zhi)(zhi)(zhi)(zhi)箱的強(qiang)(qiang)度(du)(du)(du)(du)影(ying)響較(jiao)大。普通箱板紙(zhi)(zhi)(zhi)(zhi)和(he)(he)牛皮掛面(mian)箱紙(zhi)(zhi)(zhi)(zhi)板分為(wei)優等(deng)品、一等(deng)品、合格品3種。檢(jian)測的項(xiang)目(mu)有(you):水分、定(ding)(ding)量(liang)(liang)(liang)(liang)、緊(jin)度(du)(du)(du)(du)、橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、耐(nai)破指(zhi)數(shu)(shu)(shu)、正反面(mian)吸水性、橫向耐(nai)折(zhe)度(du)(du)(du)(du)等(deng), 其中(zhong)(zhong)橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、耐(nai)破指(zhi)數(shu)(shu)(shu)和(he)(he)定(ding)(ding)量(liang)(liang)(liang)(liang)對(dui)瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)板的耐(nai)破度(du)(du)(du)(du)、戳穿強(qiang)(qiang)度(du)(du)(du)(du)和(he)(he)邊壓(ya)強(qiang)(qiang)度(du)(du)(du)(du)影(ying)響明(ming)(ming)(ming)顯,這些都是生產工藝實(shi)踐所(suo)證明(ming)(ming)(ming)的客觀事實(shi)。

所以(yi),原(yuan)紙(zhi)(zhi)作(zuo)為(wei)紙(zhi)(zhi)箱(xiang)質量(liang)的(de)(de)源頭環節, 必(bi)須進(jin)行嚴密、有(you)效的(de)(de)控制。主要(yao)做法有(you):采購時(shi)在合同中要(yao)明確(que)原(yuan)紙(zhi)(zhi)采購的(de)(de)品種、質量(liang)等級和標(biao)準項目(mu)的(de)(de)要(yao)求,檢驗項目(mu)、標(biao)準值可(ke)以(yi)參照相關的(de)(de)國標(biao), 也可(ke)以(yi)由供需雙方約定。應(ying)(ying)根據產品的(de)(de)特點確(que)定原(yuan)紙(zhi)(zhi)的(de)(de)標(biao)準和檢驗項目(mu),如(ru)可(ke)對瓦楞紙(zhi)(zhi)、箱(xiang)板紙(zhi)(zhi)增加(jia)施(shi)膠度的(de)(de)檢測項目(mu), 因(yin)為(wei)原(yuan)紙(zhi)(zhi)表面如(ru)果施(shi)膠度好, 原(yuan)紙(zhi)(zhi)就不易吸濕, 裱(biao)貼時(shi)粘合劑吸收量(liang)相應(ying)(ying)也少(shao), 有(you)利于紙(zhi)(zhi)板的(de)(de)干燥和提高紙(zhi)(zhi)箱(xiang)強度。

此外(wai),就(jiu)是(shi)要對采(cai)購(gou)的原(yuan)紙進行(xing)驗收,按標(biao)準、按合同規(gui)定的規(gui)則(ze)進行(xing)檢(jian)驗,這是(shi)保證采(cai)購(gou)質(zhi)量(liang)的重要一環。因為買(mai)(mai)原(yuan)紙不是(shi)簡單的買(mai)(mai)品(pin)種、買(mai)(mai)數量(liang),而是(shi)買(mai)(mai)原(yuan)紙的標(biao)準和質(zhi)量(liang), 可以說(shuo), 買(mai)(mai)合格的原(yuan)紙,是(shi)降低生產成(cheng)本(ben),提(ti)高(gao)紙箱質(zhi)量(liang)的基礎。

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