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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(chang)見(jian)問答 時間:2020-04-26 10:00:24

不(bu)同(tong)結(jie)構、不(bu)同(tong)材質的紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang),其價格也(ye)截然不(bu)同(tong),并且(qie)價格與原紙(zhi)(zhi)(zhi)(zhi)的品種、質量等(deng)級(ji)關系較大。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)就是要根據紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)的使用特點和運輸條件確定用紙(zhi)(zhi)(zhi)(zhi)品種和質量, 這(zhe)是保持適度包(bao)(bao)裝,控制(zhi)生產成本所(suo)值得重(zhong)視(shi)的環(huan)節(jie)。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)的原紙(zhi)(zhi)(zhi)(zhi)主(zhu)要包(bao)(bao)括(kuo)白紙(zhi)(zhi)(zhi)(zhi)板、瓦楞紙(zhi)(zhi)(zhi)(zhi)、茶板紙(zhi)(zhi)(zhi)(zhi)、普通箱(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)板和牛(niu)皮掛面箱(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)板等(deng), 這(zhe)些原紙(zhi)(zhi)(zhi)(zhi)的制(zhi)作(zuo)工藝(yi)和材料上的不(bu)同(tong),標準也(ye)有(you)所(suo)差異。

涂(tu)布白紙(zhi)板(ban)(ban)有白底和(he)灰(hui)底兩種,質量(liang)(liang)等(deng)級也有優等(deng)品(pin)、一等(deng)品(pin)、合格品(pin)三(san)種,檢測的(de)項(xiang)目有:水(shui)分、定(ding)量(liang)(liang)、定(ding)量(liang)(liang)偏差、橫幅定(ding)量(liang)(liang)差、緊(jin)度(du)(du)、亮(liang)度(du)(du)(白度(du)(du))、印(yin)刷表(biao)面(mian)粗糙(cao)度(du)(du)、平滑度(du)(du)、印(yin)刷光澤度(du)(du)、油墨吸收性、印(yin)刷表(biao)面(mian)強度(du)(du)、吸水(shui)性、橫向(xiang)挺度(du)(du)和(he)塵埃度(du)(du)等(deng)。白紙(zhi)板(ban)(ban)是預(yu)印(yin)紙(zhi)箱(xiang)面(mian)紙(zhi)的(de)采用材料, 白紙(zhi)板(ban)(ban)的(de)質量(liang)(liang)對(dui)紙(zhi)箱(xiang)的(de)印(yin)刷和(he)強度(du)(du)都有較大的(de)影響。

白紙(zhi)板的(de)(de)(de)水分、印刷(shua)(shua)(shua)表面粗糙度(du)(du)(du)(du)、平滑度(du)(du)(du)(du)和(he)(he)表面強(qiang)度(du)(du)(du)(du)等, 對印刷(shua)(shua)(shua)質量的(de)(de)(de)影(ying)響比較敏(min)感(gan), 水分對印刷(shua)(shua)(shua)版面的(de)(de)(de)套準(zhun)會有(you)一定的(de)(de)(de)影(ying)響, 而(er)印刷(shua)(shua)(shua)表面粗糙度(du)(du)(du)(du)、平滑度(du)(du)(du)(du)和(he)(he)表面強(qiang)度(du)(du)(du)(du)指標對印刷(shua)(shua)(shua)質量影(ying)響較大(da), 如(ru)印刷(shua)(shua)(shua)油墨層能否飽和(he)(he)、紙(zhi)面印刷(shua)(shua)(shua)后能否出現(xian)脫層和(he)(he)起泡(pao)問(wen)題。白紙(zhi)板的(de)(de)(de)橫向挺度(du)(du)(du)(du)則影(ying)響到紙(zhi)箱的(de)(de)(de)抗(kang)壓強(qiang)度(du)(du)(du)(du);白紙(zhi)板的(de)(de)(de)緊度(du)(du)(du)(du)不(bu)是越(yue)高越(yue)好(hao),而(er)是規定不(bu)大(da)于一個標準(zhun)值,如(ru)優等品(定量≤300g/m 2)不(bu)大(da)于0.88g/cm3。

因為如(ru)果白紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)(ban)的(de)(de)緊(jin)(jin)度(du)(du)過(guo)高,紙(zhi)(zhi)(zhi)(zhi)箱搖蓋(gai)的(de)(de)耐折度(du)(du)就會明顯下降(jiang),使(shi)用(yong)(yong)(yong)過(guo)程中(zhong)搖蓋(gai)就容易出(chu)現斷裂(lie)現象。瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)多用(yong)(yong)(yong)于(yu)(yu)紙(zhi)(zhi)(zhi)(zhi)箱的(de)(de)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)層(ceng),也有的(de)(de)用(yong)(yong)(yong)于(yu)(yu)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)(ban)夾芯層(ceng)或里層(ceng)。用(yong)(yong)(yong)于(yu)(yu)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)層(ceng)的(de)(de)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi), 它的(de)(de)質(zhi)量(liang)(liang)如(ru)何直接影(ying)響(xiang)到(dao)紙(zhi)(zhi)(zhi)(zhi)箱的(de)(de)抗壓(ya)強度(du)(du)。瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)的(de)(de)標準(zhun)分A、B、C、D 4個等級,A 等質(zhi)量(liang)(liang)指(zhi)(zhi)標更高,其常規檢驗的(de)(de)項(xiang)目有: 水(shui)分、定量(liang)(liang)、緊(jin)(jin)度(du)(du)、橫向環壓(ya)指(zhi)(zhi)數(shu)和裂(lie)斷長等, 其中(zhong)橫向環壓(ya)指(zhi)(zhi)數(shu)、定量(liang)(liang)和緊(jin)(jin)度(du)(du)指(zhi)(zhi)標,對(dui)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)(ban)的(de)(de)邊壓(ya)強度(du)(du)影(ying)響(xiang)較大。箱板(ban)(ban)(ban)紙(zhi)(zhi)(zhi)(zhi)一般用(yong)(yong)(yong)于(yu)(yu)紙(zhi)(zhi)(zhi)(zhi)箱面(mian)紙(zhi)(zhi)(zhi)(zhi)或里紙(zhi)(zhi)(zhi)(zhi),其質(zhi)量(liang)(liang)對(dui)紙(zhi)(zhi)(zhi)(zhi)箱的(de)(de)強度(du)(du)影(ying)響(xiang)較大。普(pu)通箱板(ban)(ban)(ban)紙(zhi)(zhi)(zhi)(zhi)和牛皮掛面(mian)箱紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)(ban)分為優等品(pin)、一等品(pin)、合格品(pin)3種。檢測(ce)的(de)(de)項(xiang)目有:水(shui)分、定量(liang)(liang)、緊(jin)(jin)度(du)(du)、橫向環壓(ya)指(zhi)(zhi)數(shu)、耐破指(zhi)(zhi)數(shu)、正反(fan)面(mian)吸水(shui)性(xing)、橫向耐折度(du)(du)等, 其中(zhong)橫向環壓(ya)指(zhi)(zhi)數(shu)、耐破指(zhi)(zhi)數(shu)和定量(liang)(liang)對(dui)瓦(wa)(wa)(wa)楞(leng)(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)(ban)的(de)(de)耐破度(du)(du)、戳穿強度(du)(du)和邊壓(ya)強度(du)(du)影(ying)響(xiang)明顯,這(zhe)些都是生產工藝實(shi)踐(jian)所證明的(de)(de)客觀事(shi)實(shi)。

所以,原(yuan)紙(zhi)(zhi)(zhi)(zhi)作為紙(zhi)(zhi)(zhi)(zhi)箱質量的源(yuan)頭環(huan)節, 必須進行(xing)嚴密、有效(xiao)的控制。主要(yao)做法有:采(cai)購時在合同(tong)中(zhong)要(yao)明確(que)原(yuan)紙(zhi)(zhi)(zhi)(zhi)采(cai)購的品種、質量等(deng)級(ji)和(he)標(biao)(biao)(biao)準項(xiang)目(mu)的要(yao)求(qiu),檢(jian)驗項(xiang)目(mu)、標(biao)(biao)(biao)準值可(ke)(ke)以參照相(xiang)關的國標(biao)(biao)(biao), 也可(ke)(ke)以由供(gong)需雙(shuang)方約定。應(ying)根據產品的特點確(que)定原(yuan)紙(zhi)(zhi)(zhi)(zhi)的標(biao)(biao)(biao)準和(he)檢(jian)驗項(xiang)目(mu),如可(ke)(ke)對瓦楞(leng)紙(zhi)(zhi)(zhi)(zhi)、箱板(ban)紙(zhi)(zhi)(zhi)(zhi)增加施膠(jiao)(jiao)度的檢(jian)測項(xiang)目(mu), 因為原(yuan)紙(zhi)(zhi)(zhi)(zhi)表面如果(guo)施膠(jiao)(jiao)度好(hao), 原(yuan)紙(zhi)(zhi)(zhi)(zhi)就不(bu)易吸(xi)濕(shi), 裱貼時粘合劑(ji)吸(xi)收(shou)量相(xiang)應(ying)也少, 有利于(yu)紙(zhi)(zhi)(zhi)(zhi)板(ban)的干燥和(he)提(ti)高紙(zhi)(zhi)(zhi)(zhi)箱強度。

此外,就是(shi)要(yao)對采購的(de)(de)(de)(de)(de)原(yuan)紙進(jin)行驗收(shou),按標準、按合(he)同規定的(de)(de)(de)(de)(de)規則進(jin)行檢驗,這是(shi)保證采購質量(liang)(liang)(liang)的(de)(de)(de)(de)(de)重要(yao)一環。因(yin)為買(mai)(mai)(mai)原(yuan)紙不是(shi)簡單(dan)的(de)(de)(de)(de)(de)買(mai)(mai)(mai)品種、買(mai)(mai)(mai)數量(liang)(liang)(liang),而是(shi)買(mai)(mai)(mai)原(yuan)紙的(de)(de)(de)(de)(de)標準和質量(liang)(liang)(liang), 可以說, 買(mai)(mai)(mai)合(he)格的(de)(de)(de)(de)(de)原(yuan)紙,是(shi)降低生產(chan)成本,提(ti)高紙箱質量(liang)(liang)(liang)的(de)(de)(de)(de)(de)基礎。

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