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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)結構、不(bu)同(tong)材(cai)質的(de)紙(zhi)(zhi)箱(xiang)(xiang)(xiang),其(qi)價格也(ye)截然不(bu)同(tong),并且價格與原(yuan)紙(zhi)(zhi)的(de)品種(zhong)、質量等(deng)級關(guan)系較大(da)。制(zhi)(zhi)作(zuo)紙(zhi)(zhi)箱(xiang)(xiang)(xiang)就是要(yao)根據紙(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)使用特點(dian)和運輸條(tiao)件確定用紙(zhi)(zhi)品種(zhong)和質量, 這(zhe)是保持(chi)適度包裝,控制(zhi)(zhi)生產成本所值得重視的(de)環(huan)節(jie)。制(zhi)(zhi)作(zuo)紙(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)原(yuan)紙(zhi)(zhi)主要(yao)包括(kuo)白(bai)紙(zhi)(zhi)板(ban)(ban)、瓦(wa)楞紙(zhi)(zhi)、茶板(ban)(ban)紙(zhi)(zhi)、普通箱(xiang)(xiang)(xiang)紙(zhi)(zhi)板(ban)(ban)和牛皮(pi)掛面箱(xiang)(xiang)(xiang)紙(zhi)(zhi)板(ban)(ban)等(deng), 這(zhe)些原(yuan)紙(zhi)(zhi)的(de)制(zhi)(zhi)作(zuo)工(gong)藝和材(cai)料上的(de)不(bu)同(tong),標準(zhun)也(ye)有所差異。

涂(tu)布白紙(zhi)(zhi)板有(you)白底(di)和灰底(di)兩種,質量(liang)(liang)等(deng)(deng)級(ji)也有(you)優(you)等(deng)(deng)品(pin)、一等(deng)(deng)品(pin)、合格品(pin)三種,檢測的項(xiang)目(mu)有(you):水分(fen)、定量(liang)(liang)、定量(liang)(liang)偏差、橫(heng)幅定量(liang)(liang)差、緊度(du)、亮度(du)(白度(du))、印(yin)(yin)(yin)刷表面粗糙度(du)、平(ping)滑度(du)、印(yin)(yin)(yin)刷光(guang)澤(ze)度(du)、油墨吸(xi)收性(xing)、印(yin)(yin)(yin)刷表面強(qiang)度(du)、吸(xi)水性(xing)、橫(heng)向(xiang)挺度(du)和塵(chen)埃度(du)等(deng)(deng)。白紙(zhi)(zhi)板是預印(yin)(yin)(yin)紙(zhi)(zhi)箱(xiang)面紙(zhi)(zhi)的采用材料, 白紙(zhi)(zhi)板的質量(liang)(liang)對紙(zhi)(zhi)箱(xiang)的印(yin)(yin)(yin)刷和強(qiang)度(du)都(dou)有(you)較大的影響。

白紙板的(de)(de)(de)水分(fen)、印刷表面(mian)(mian)粗(cu)糙(cao)度(du)(du)、平滑度(du)(du)和(he)表面(mian)(mian)強度(du)(du)等, 對(dui)印刷質(zhi)量的(de)(de)(de)影(ying)(ying)響(xiang)比較(jiao)敏(min)感, 水分(fen)對(dui)印刷版面(mian)(mian)的(de)(de)(de)套準(zhun)會(hui)有一定(ding)的(de)(de)(de)影(ying)(ying)響(xiang), 而(er)印刷表面(mian)(mian)粗(cu)糙(cao)度(du)(du)、平滑度(du)(du)和(he)表面(mian)(mian)強度(du)(du)指標(biao)對(dui)印刷質(zhi)量影(ying)(ying)響(xiang)較(jiao)大, 如印刷油墨層(ceng)能否(fou)飽和(he)、紙面(mian)(mian)印刷后能否(fou)出現脫(tuo)層(ceng)和(he)起泡問題。白紙板的(de)(de)(de)橫向(xiang)挺度(du)(du)則影(ying)(ying)響(xiang)到(dao)紙箱的(de)(de)(de)抗壓(ya)強度(du)(du);白紙板的(de)(de)(de)緊(jin)度(du)(du)不是(shi)越高越好,而(er)是(shi)規(gui)定(ding)不大于一個標(biao)準(zhun)值(zhi),如優等品(定(ding)量≤300g/m 2)不大于0.88g/cm3。

因為如果(guo)白紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)(de)緊度(du)(du)(du)(du)(du)過高,紙(zhi)(zhi)(zhi)箱(xiang)搖(yao)(yao)蓋(gai)的(de)(de)(de)耐(nai)折度(du)(du)(du)(du)(du)就會明(ming)顯(xian)下降,使用(yong)(yong)(yong)過程(cheng)中(zhong)搖(yao)(yao)蓋(gai)就容易出(chu)現(xian)斷裂(lie)現(xian)象。瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)多用(yong)(yong)(yong)于紙(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)瓦(wa)(wa)楞(leng)(leng)(leng)層,也(ye)有的(de)(de)(de)用(yong)(yong)(yong)于瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)夾芯層或里(li)層。用(yong)(yong)(yong)于瓦(wa)(wa)楞(leng)(leng)(leng)層的(de)(de)(de)瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi), 它的(de)(de)(de)質(zhi)量(liang)(liang)(liang)如何(he)直接影響到紙(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)抗壓強(qiang)(qiang)(qiang)度(du)(du)(du)(du)(du)。瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)的(de)(de)(de)標(biao)準分(fen)A、B、C、D 4個等(deng)級(ji),A 等(deng)質(zhi)量(liang)(liang)(liang)指(zhi)(zhi)標(biao)更高,其(qi)常規檢驗的(de)(de)(de)項目(mu)有: 水(shui)分(fen)、定(ding)量(liang)(liang)(liang)、緊度(du)(du)(du)(du)(du)、橫向(xiang)(xiang)環壓指(zhi)(zhi)數和(he)(he)裂(lie)斷長等(deng), 其(qi)中(zhong)橫向(xiang)(xiang)環壓指(zhi)(zhi)數、定(ding)量(liang)(liang)(liang)和(he)(he)緊度(du)(du)(du)(du)(du)指(zhi)(zhi)標(biao),對瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)(de)邊壓強(qiang)(qiang)(qiang)度(du)(du)(du)(du)(du)影響較(jiao)大。箱(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)一般用(yong)(yong)(yong)于紙(zhi)(zhi)(zhi)箱(xiang)面(mian)紙(zhi)(zhi)(zhi)或里(li)紙(zhi)(zhi)(zhi),其(qi)質(zhi)量(liang)(liang)(liang)對紙(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)強(qiang)(qiang)(qiang)度(du)(du)(du)(du)(du)影響較(jiao)大。普(pu)通箱(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)和(he)(he)牛皮(pi)掛面(mian)箱(xiang)紙(zhi)(zhi)(zhi)板(ban)(ban)分(fen)為優(you)等(deng)品、一等(deng)品、合(he)格品3種。檢測的(de)(de)(de)項目(mu)有:水(shui)分(fen)、定(ding)量(liang)(liang)(liang)、緊度(du)(du)(du)(du)(du)、橫向(xiang)(xiang)環壓指(zhi)(zhi)數、耐(nai)破指(zhi)(zhi)數、正反面(mian)吸水(shui)性、橫向(xiang)(xiang)耐(nai)折度(du)(du)(du)(du)(du)等(deng), 其(qi)中(zhong)橫向(xiang)(xiang)環壓指(zhi)(zhi)數、耐(nai)破指(zhi)(zhi)數和(he)(he)定(ding)量(liang)(liang)(liang)對瓦(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)(de)耐(nai)破度(du)(du)(du)(du)(du)、戳穿強(qiang)(qiang)(qiang)度(du)(du)(du)(du)(du)和(he)(he)邊壓強(qiang)(qiang)(qiang)度(du)(du)(du)(du)(du)影響明(ming)顯(xian),這些都是生產(chan)工藝實踐所證明(ming)的(de)(de)(de)客觀事實。

所以(yi),原紙(zhi)(zhi)(zhi)(zhi)作(zuo)為(wei)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)質(zhi)量(liang)的(de)(de)源頭環節, 必須(xu)進行嚴密、有效的(de)(de)控制(zhi)。主要(yao)做法有:采購時在合同中(zhong)要(yao)明(ming)確(que)原紙(zhi)(zhi)(zhi)(zhi)采購的(de)(de)品種、質(zhi)量(liang)等(deng)級和(he)標(biao)準項目的(de)(de)要(yao)求,檢(jian)驗項目、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。應根據(ju)產品的(de)(de)特點確(que)定原紙(zhi)(zhi)(zhi)(zhi)的(de)(de)標(biao)準和(he)檢(jian)驗項目,如(ru)可(ke)對瓦(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)、箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)增加(jia)施(shi)膠度的(de)(de)檢(jian)測項目, 因為(wei)原紙(zhi)(zhi)(zhi)(zhi)表(biao)面如(ru)果施(shi)膠度好, 原紙(zhi)(zhi)(zhi)(zhi)就(jiu)不易吸濕(shi), 裱貼(tie)時粘合劑吸收量(liang)相應也少, 有利于紙(zhi)(zhi)(zhi)(zhi)板的(de)(de)干燥(zao)和(he)提高紙(zhi)(zhi)(zhi)(zhi)箱(xiang)強度。

此外,就是(shi)要對采(cai)購(gou)的(de)原(yuan)(yuan)(yuan)紙(zhi)進行驗收,按標(biao)準(zhun)、按合同規(gui)定的(de)規(gui)則(ze)進行檢驗,這是(shi)保證采(cai)購(gou)質量的(de)重(zhong)要一環。因為買(mai)原(yuan)(yuan)(yuan)紙(zhi)不(bu)是(shi)簡單的(de)買(mai)品種、買(mai)數量,而是(shi)買(mai)原(yuan)(yuan)(yuan)紙(zhi)的(de)標(biao)準(zhun)和(he)質量, 可以說, 買(mai)合格的(de)原(yuan)(yuan)(yuan)紙(zhi),是(shi)降低生產成本(ben),提高紙(zhi)箱質量的(de)基礎(chu)。

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