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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)見問(wen)答(da) 時(shi)間(jian):2020-04-26 10:00:24

不(bu)同(tong)結構、不(bu)同(tong)材質(zhi)的(de)(de)(de)紙(zhi)(zhi)(zhi)箱(xiang),其價(jia)格也截然不(bu)同(tong),并且價(jia)格與原紙(zhi)(zhi)(zhi)的(de)(de)(de)品種(zhong)、質(zhi)量等級關系較大(da)。制(zhi)作紙(zhi)(zhi)(zhi)箱(xiang)就是要根據紙(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)使用特點和(he)運輸(shu)條(tiao)件(jian)確定用紙(zhi)(zhi)(zhi)品種(zhong)和(he)質(zhi)量, 這是保持適度包裝(zhuang),控制(zhi)生(sheng)產成本所(suo)值得重視(shi)的(de)(de)(de)環節。制(zhi)作紙(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)原紙(zhi)(zhi)(zhi)主(zhu)要包括白紙(zhi)(zhi)(zhi)板(ban)、瓦(wa)楞紙(zhi)(zhi)(zhi)、茶板(ban)紙(zhi)(zhi)(zhi)、普(pu)通箱(xiang)紙(zhi)(zhi)(zhi)板(ban)和(he)牛皮掛(gua)面箱(xiang)紙(zhi)(zhi)(zhi)板(ban)等, 這些原紙(zhi)(zhi)(zhi)的(de)(de)(de)制(zhi)作工藝和(he)材料上的(de)(de)(de)不(bu)同(tong),標準也有所(suo)差異。

涂布白(bai)紙(zhi)板有白(bai)底(di)(di)和(he)(he)灰底(di)(di)兩種,質量等(deng)(deng)級也有優等(deng)(deng)品(pin)(pin)、一等(deng)(deng)品(pin)(pin)、合格(ge)品(pin)(pin)三種,檢測(ce)的(de)(de)項目有:水(shui)分、定(ding)量、定(ding)量偏差、橫(heng)幅定(ding)量差、緊度(du)(du)、亮度(du)(du)(白(bai)度(du)(du))、印(yin)刷(shua)表面(mian)粗糙度(du)(du)、平滑度(du)(du)、印(yin)刷(shua)光澤度(du)(du)、油墨吸收性(xing)、印(yin)刷(shua)表面(mian)強(qiang)度(du)(du)、吸水(shui)性(xing)、橫(heng)向挺(ting)度(du)(du)和(he)(he)塵埃度(du)(du)等(deng)(deng)。白(bai)紙(zhi)板是預(yu)印(yin)紙(zhi)箱(xiang)面(mian)紙(zhi)的(de)(de)采用(yong)材料, 白(bai)紙(zhi)板的(de)(de)質量對紙(zhi)箱(xiang)的(de)(de)印(yin)刷(shua)和(he)(he)強(qiang)度(du)(du)都有較大(da)的(de)(de)影響(xiang)。

白(bai)紙(zhi)(zhi)板(ban)(ban)(ban)的水(shui)分、印(yin)(yin)刷(shua)(shua)表(biao)面(mian)(mian)(mian)粗糙(cao)度(du)、平滑(hua)度(du)和(he)(he)表(biao)面(mian)(mian)(mian)強度(du)等, 對印(yin)(yin)刷(shua)(shua)質量(liang)(liang)的影(ying)響比較敏感(gan), 水(shui)分對印(yin)(yin)刷(shua)(shua)版面(mian)(mian)(mian)的套(tao)準會有一定的影(ying)響, 而(er)印(yin)(yin)刷(shua)(shua)表(biao)面(mian)(mian)(mian)粗糙(cao)度(du)、平滑(hua)度(du)和(he)(he)表(biao)面(mian)(mian)(mian)強度(du)指標對印(yin)(yin)刷(shua)(shua)質量(liang)(liang)影(ying)響較大(da), 如印(yin)(yin)刷(shua)(shua)油墨層能否飽和(he)(he)、紙(zhi)(zhi)面(mian)(mian)(mian)印(yin)(yin)刷(shua)(shua)后能否出現(xian)脫層和(he)(he)起泡問(wen)題。白(bai)紙(zhi)(zhi)板(ban)(ban)(ban)的橫向挺度(du)則影(ying)響到紙(zhi)(zhi)箱的抗壓強度(du);白(bai)紙(zhi)(zhi)板(ban)(ban)(ban)的緊度(du)不是越高越好,而(er)是規定不大(da)于一個標準值,如優(you)等品(定量(liang)(liang)≤300g/m 2)不大(da)于0.88g/cm3。

因為(wei)如(ru)果白(bai)紙(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)緊(jin)度(du)(du)過高(gao),紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)搖(yao)蓋(gai)的(de)(de)耐(nai)折(zhe)度(du)(du)就會明(ming)顯下降,使用(yong)過程中搖(yao)蓋(gai)就容易出現斷裂現象。瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)多用(yong)于紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)瓦(wa)(wa)(wa)楞(leng)層(ceng),也有(you)的(de)(de)用(yong)于瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板夾芯層(ceng)或(huo)里層(ceng)。用(yong)于瓦(wa)(wa)(wa)楞(leng)層(ceng)的(de)(de)瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi), 它的(de)(de)質(zhi)(zhi)量如(ru)何直接影響(xiang)(xiang)到紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)抗壓(ya)(ya)(ya)強度(du)(du)。瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)標(biao)準分A、B、C、D 4個等(deng)(deng)級,A 等(deng)(deng)質(zhi)(zhi)量指(zhi)(zhi)標(biao)更(geng)高(gao),其(qi)常規檢驗(yan)的(de)(de)項目有(you): 水分、定量、緊(jin)度(du)(du)、橫(heng)向(xiang)環(huan)壓(ya)(ya)(ya)指(zhi)(zhi)數和裂斷長等(deng)(deng), 其(qi)中橫(heng)向(xiang)環(huan)壓(ya)(ya)(ya)指(zhi)(zhi)數、定量和緊(jin)度(du)(du)指(zhi)(zhi)標(biao),對瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)邊(bian)壓(ya)(ya)(ya)強度(du)(du)影響(xiang)(xiang)較大。箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)一般用(yong)于紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)面(mian)紙(zhi)(zhi)(zhi)(zhi)(zhi)或(huo)里紙(zhi)(zhi)(zhi)(zhi)(zhi),其(qi)質(zhi)(zhi)量對紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)強度(du)(du)影響(xiang)(xiang)較大。普通箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)(zhi)和牛皮掛面(mian)箱(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)板分為(wei)優(you)等(deng)(deng)品(pin)、一等(deng)(deng)品(pin)、合格品(pin)3種。檢測的(de)(de)項目有(you):水分、定量、緊(jin)度(du)(du)、橫(heng)向(xiang)環(huan)壓(ya)(ya)(ya)指(zhi)(zhi)數、耐(nai)破(po)指(zhi)(zhi)數、正反面(mian)吸水性、橫(heng)向(xiang)耐(nai)折(zhe)度(du)(du)等(deng)(deng), 其(qi)中橫(heng)向(xiang)環(huan)壓(ya)(ya)(ya)指(zhi)(zhi)數、耐(nai)破(po)指(zhi)(zhi)數和定量對瓦(wa)(wa)(wa)楞(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板的(de)(de)耐(nai)破(po)度(du)(du)、戳穿強度(du)(du)和邊(bian)壓(ya)(ya)(ya)強度(du)(du)影響(xiang)(xiang)明(ming)顯,這些(xie)都是(shi)生產工藝實踐所證(zheng)明(ming)的(de)(de)客(ke)觀事實。

所(suo)以(yi),原紙(zhi)(zhi)(zhi)(zhi)作為紙(zhi)(zhi)(zhi)(zhi)箱(xiang)質量(liang)的源頭環節, 必須進行嚴密(mi)、有效的控(kong)制。主要做法有:采購(gou)時在合(he)同(tong)中要明(ming)確(que)原紙(zhi)(zhi)(zhi)(zhi)采購(gou)的品(pin)種、質量(liang)等級和標準項目(mu)的要求,檢(jian)驗項目(mu)、標準值(zhi)可以(yi)參照相(xiang)關(guan)的國標, 也(ye)(ye)可以(yi)由供(gong)需雙方約定(ding)。應根據(ju)產品(pin)的特點確(que)定(ding)原紙(zhi)(zhi)(zhi)(zhi)的標準和檢(jian)驗項目(mu),如可對瓦楞紙(zhi)(zhi)(zhi)(zhi)、箱(xiang)板紙(zhi)(zhi)(zhi)(zhi)增加施膠度的檢(jian)測項目(mu), 因為原紙(zhi)(zhi)(zhi)(zhi)表面如果施膠度好(hao), 原紙(zhi)(zhi)(zhi)(zhi)就不(bu)易(yi)吸濕, 裱貼時粘合(he)劑吸收(shou)量(liang)相(xiang)應也(ye)(ye)少(shao), 有利(li)于紙(zhi)(zhi)(zhi)(zhi)板的干燥和提高紙(zhi)(zhi)(zhi)(zhi)箱(xiang)強度。

此外,就是(shi)要對采(cai)購(gou)的(de)(de)原紙進(jin)(jin)行(xing)(xing)驗(yan)收,按(an)標(biao)準、按(an)合同規定的(de)(de)規則進(jin)(jin)行(xing)(xing)檢驗(yan),這是(shi)保證采(cai)購(gou)質量的(de)(de)重要一環。因(yin)為買(mai)原紙不(bu)是(shi)簡(jian)單(dan)的(de)(de)買(mai)品種、買(mai)數(shu)量,而是(shi)買(mai)原紙的(de)(de)標(biao)準和質量, 可以說, 買(mai)合格的(de)(de)原紙,是(shi)降低生產成(cheng)本,提高紙箱質量的(de)(de)基礎。

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