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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(fen)類(lei):常見問答 時間:2020-04-26 10:00:24

不(bu)同(tong)結構、不(bu)同(tong)材質(zhi)的(de)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang),其價格(ge)也截然(ran)不(bu)同(tong),并且價格(ge)與原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)品(pin)種、質(zhi)量(liang)等級(ji)關系較大(da)。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)就(jiu)是(shi)要根據紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)使用(yong)特點(dian)和(he)運輸條件確定用(yong)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)品(pin)種和(he)質(zhi)量(liang), 這(zhe)(zhe)是(shi)保持適度包裝,控制(zhi)生產成本(ben)所值得重視的(de)環節。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)主(zhu)要包括白紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板、瓦楞紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、茶板紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、普(pu)通箱(xiang)(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板和(he)牛皮掛面箱(xiang)(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板等, 這(zhe)(zhe)些原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)制(zhi)作(zuo)工藝和(he)材料上(shang)的(de)不(bu)同(tong),標(biao)準也有所差異。

涂布白紙(zhi)板有白底和灰底兩種,質量等(deng)級也(ye)有優(you)等(deng)品(pin)、一等(deng)品(pin)、合格品(pin)三(san)種,檢測的項目有:水分、定量、定量偏差(cha)、橫幅定量差(cha)、緊度(du)(du)、亮(liang)度(du)(du)(白度(du)(du))、印刷(shua)(shua)表面(mian)粗糙度(du)(du)、平滑度(du)(du)、印刷(shua)(shua)光澤(ze)度(du)(du)、油墨吸收性、印刷(shua)(shua)表面(mian)強度(du)(du)、吸水性、橫向(xiang)挺度(du)(du)和塵埃度(du)(du)等(deng)。白紙(zhi)板是預印紙(zhi)箱(xiang)面(mian)紙(zhi)的采用材料, 白紙(zhi)板的質量對紙(zhi)箱(xiang)的印刷(shua)(shua)和強度(du)(du)都(dou)有較大的影響。

白紙板的水分(fen)、印刷(shua)(shua)(shua)表面粗糙度、平(ping)滑(hua)度和表面強(qiang)度等(deng), 對印刷(shua)(shua)(shua)質量的影響比較敏(min)感, 水分(fen)對印刷(shua)(shua)(shua)版面的套準會有一定(ding)的影響, 而印刷(shua)(shua)(shua)表面粗糙度、平(ping)滑(hua)度和表面強(qiang)度指標對印刷(shua)(shua)(shua)質量影響較大(da)(da), 如(ru)(ru)印刷(shua)(shua)(shua)油墨層(ceng)能(neng)否飽和、紙面印刷(shua)(shua)(shua)后(hou)能(neng)否出現脫層(ceng)和起泡問題(ti)。白紙板的橫(heng)向(xiang)挺度則影響到紙箱的抗(kang)壓強(qiang)度;白紙板的緊(jin)度不(bu)是越高(gao)越好,而是規定(ding)不(bu)大(da)(da)于一個標準值(zhi),如(ru)(ru)優等(deng)品(定(ding)量≤300g/m 2)不(bu)大(da)(da)于0.88g/cm3。

因(yin)為如果(guo)白紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)(de)(de)緊度(du)(du)(du)過高,紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)搖(yao)蓋的(de)(de)(de)(de)耐(nai)(nai)折(zhe)度(du)(du)(du)就(jiu)會明(ming)(ming)顯下(xia)降,使用(yong)過程(cheng)中(zhong)搖(yao)蓋就(jiu)容易(yi)出現斷裂現象。瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)多用(yong)于(yu)(yu)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)(de)瓦(wa)(wa)楞(leng)(leng)層,也有的(de)(de)(de)(de)用(yong)于(yu)(yu)瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板夾芯層或里層。用(yong)于(yu)(yu)瓦(wa)(wa)楞(leng)(leng)層的(de)(de)(de)(de)瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi), 它的(de)(de)(de)(de)質量(liang)(liang)如何直接影響(xiang)到紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)(de)抗壓(ya)強(qiang)度(du)(du)(du)。瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)標準分(fen)(fen)A、B、C、D 4個等級(ji),A 等質量(liang)(liang)指標更高,其(qi)常規檢驗的(de)(de)(de)(de)項目(mu)(mu)有: 水分(fen)(fen)、定量(liang)(liang)、緊度(du)(du)(du)、橫(heng)(heng)(heng)向(xiang)環壓(ya)指數和裂斷長(chang)等, 其(qi)中(zhong)橫(heng)(heng)(heng)向(xiang)環壓(ya)指數、定量(liang)(liang)和緊度(du)(du)(du)指標,對(dui)瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)(de)(de)邊壓(ya)強(qiang)度(du)(du)(du)影響(xiang)較(jiao)大。箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)一般用(yong)于(yu)(yu)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)面紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)或里紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),其(qi)質量(liang)(liang)對(dui)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)(de)強(qiang)度(du)(du)(du)影響(xiang)較(jiao)大。普(pu)通箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)和牛皮掛面箱(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板分(fen)(fen)為優等品、一等品、合(he)格(ge)品3種。檢測的(de)(de)(de)(de)項目(mu)(mu)有:水分(fen)(fen)、定量(liang)(liang)、緊度(du)(du)(du)、橫(heng)(heng)(heng)向(xiang)環壓(ya)指數、耐(nai)(nai)破(po)(po)指數、正反面吸水性、橫(heng)(heng)(heng)向(xiang)耐(nai)(nai)折(zhe)度(du)(du)(du)等, 其(qi)中(zhong)橫(heng)(heng)(heng)向(xiang)環壓(ya)指數、耐(nai)(nai)破(po)(po)指數和定量(liang)(liang)對(dui)瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)(de)(de)耐(nai)(nai)破(po)(po)度(du)(du)(du)、戳穿強(qiang)度(du)(du)(du)和邊壓(ya)強(qiang)度(du)(du)(du)影響(xiang)明(ming)(ming)顯,這些(xie)都(dou)是生產工藝實(shi)踐(jian)所證明(ming)(ming)的(de)(de)(de)(de)客觀事實(shi)。

所以,原紙(zhi)作為(wei)紙(zhi)箱質量的(de)(de)(de)源頭(tou)環(huan)節, 必須進行嚴密(mi)、有效的(de)(de)(de)控制。主要(yao)做法有:采購(gou)時(shi)在合同中要(yao)明確原紙(zhi)采購(gou)的(de)(de)(de)品(pin)種(zhong)、質量等級和標(biao)(biao)(biao)準(zhun)項(xiang)(xiang)目(mu)的(de)(de)(de)要(yao)求,檢驗項(xiang)(xiang)目(mu)、標(biao)(biao)(biao)準(zhun)值可(ke)以參照相關的(de)(de)(de)國標(biao)(biao)(biao), 也可(ke)以由供需雙方(fang)約定。應根據產品(pin)的(de)(de)(de)特點確定原紙(zhi)的(de)(de)(de)標(biao)(biao)(biao)準(zhun)和檢驗項(xiang)(xiang)目(mu),如可(ke)對瓦楞紙(zhi)、箱板(ban)紙(zhi)增加(jia)施膠度的(de)(de)(de)檢測(ce)項(xiang)(xiang)目(mu), 因為(wei)原紙(zhi)表(biao)面如果(guo)施膠度好, 原紙(zhi)就不易吸濕, 裱貼時(shi)粘合劑吸收(shou)量相應也少, 有利(li)于紙(zhi)板(ban)的(de)(de)(de)干(gan)燥(zao)和提高紙(zhi)箱強度。

此外(wai),就是(shi)要對采(cai)購(gou)的(de)原(yuan)紙(zhi)(zhi)進(jin)(jin)行(xing)驗(yan)收,按標準、按合同規定的(de)規則進(jin)(jin)行(xing)檢驗(yan),這是(shi)保證采(cai)購(gou)質量的(de)重要一環。因為買(mai)原(yuan)紙(zhi)(zhi)不是(shi)簡單(dan)的(de)買(mai)品種、買(mai)數量,而是(shi)買(mai)原(yuan)紙(zhi)(zhi)的(de)標準和質量, 可以說(shuo), 買(mai)合格的(de)原(yuan)紙(zhi)(zhi),是(shi)降低生產成本,提高紙(zhi)(zhi)箱質量的(de)基礎(chu)。

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