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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)見問答 時間:2020-04-26 10:00:24

不(bu)同(tong)(tong)(tong)結構(gou)、不(bu)同(tong)(tong)(tong)材質(zhi)的(de)紙(zhi)(zhi)箱,其價格也(ye)(ye)截然不(bu)同(tong)(tong)(tong),并且價格與原紙(zhi)(zhi)的(de)品(pin)種、質(zhi)量等級關系(xi)較(jiao)大(da)。制(zhi)作紙(zhi)(zhi)箱就是(shi)要(yao)根據紙(zhi)(zhi)箱的(de)使用特點(dian)和(he)運輸條件(jian)確定用紙(zhi)(zhi)品(pin)種和(he)質(zhi)量, 這是(shi)保(bao)持適度(du)包裝,控制(zhi)生產成本所(suo)值得重(zhong)視的(de)環節(jie)。制(zhi)作紙(zhi)(zhi)箱的(de)原紙(zhi)(zhi)主要(yao)包括(kuo)白紙(zhi)(zhi)板、瓦楞紙(zhi)(zhi)、茶板紙(zhi)(zhi)、普通箱紙(zhi)(zhi)板和(he)牛(niu)皮掛(gua)面箱紙(zhi)(zhi)板等, 這些原紙(zhi)(zhi)的(de)制(zhi)作工藝和(he)材料上的(de)不(bu)同(tong)(tong)(tong),標(biao)準(zhun)也(ye)(ye)有所(suo)差異。

涂布(bu)白紙板有(you)白底和(he)灰底兩種,質量等(deng)(deng)級也有(you)優等(deng)(deng)品(pin)、一等(deng)(deng)品(pin)、合格品(pin)三種,檢測的項目(mu)有(you):水分、定(ding)(ding)量、定(ding)(ding)量偏差、橫(heng)幅定(ding)(ding)量差、緊(jin)度(du)、亮度(du)(白度(du))、印刷表面(mian)粗糙度(du)、平滑度(du)、印刷光澤度(du)、油(you)墨(mo)吸收(shou)性(xing)(xing)、印刷表面(mian)強(qiang)度(du)、吸水性(xing)(xing)、橫(heng)向(xiang)挺度(du)和(he)塵埃度(du)等(deng)(deng)。白紙板是預印紙箱面(mian)紙的采(cai)用材料, 白紙板的質量對紙箱的印刷和(he)強(qiang)度(du)都有(you)較(jiao)大的影響。

白紙(zhi)板(ban)的(de)水分、印(yin)(yin)(yin)刷(shua)表(biao)面(mian)(mian)粗(cu)糙(cao)度(du)(du)(du)、平滑(hua)度(du)(du)(du)和(he)表(biao)面(mian)(mian)強度(du)(du)(du)等(deng)(deng), 對印(yin)(yin)(yin)刷(shua)質量的(de)影(ying)(ying)響(xiang)(xiang)比較敏感, 水分對印(yin)(yin)(yin)刷(shua)版(ban)面(mian)(mian)的(de)套準(zhun)會有一(yi)定(ding)(ding)的(de)影(ying)(ying)響(xiang)(xiang), 而印(yin)(yin)(yin)刷(shua)表(biao)面(mian)(mian)粗(cu)糙(cao)度(du)(du)(du)、平滑(hua)度(du)(du)(du)和(he)表(biao)面(mian)(mian)強度(du)(du)(du)指標對印(yin)(yin)(yin)刷(shua)質量影(ying)(ying)響(xiang)(xiang)較大, 如(ru)印(yin)(yin)(yin)刷(shua)油墨層能否飽和(he)、紙(zhi)面(mian)(mian)印(yin)(yin)(yin)刷(shua)后能否出現脫層和(he)起泡問題。白紙(zhi)板(ban)的(de)橫向挺度(du)(du)(du)則影(ying)(ying)響(xiang)(xiang)到紙(zhi)箱的(de)抗壓強度(du)(du)(du);白紙(zhi)板(ban)的(de)緊度(du)(du)(du)不(bu)(bu)是(shi)越高越好(hao),而是(shi)規定(ding)(ding)不(bu)(bu)大于一(yi)個標準(zhun)值(zhi),如(ru)優等(deng)(deng)品(定(ding)(ding)量≤300g/m 2)不(bu)(bu)大于0.88g/cm3。

因為如果白紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)緊(jin)(jin)度(du)(du)(du)過高(gao),紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)搖蓋的(de)(de)耐(nai)(nai)折度(du)(du)(du)就會明(ming)顯下降(jiang),使用(yong)過程中(zhong)搖蓋就容易出現(xian)斷裂(lie)現(xian)象(xiang)。瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)多(duo)用(yong)于紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)瓦(wa)(wa)(wa)(wa)楞層,也有(you)的(de)(de)用(yong)于瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)(ban)夾芯層或里層。用(yong)于瓦(wa)(wa)(wa)(wa)楞層的(de)(de)瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi), 它的(de)(de)質量(liang)(liang)(liang)(liang)如何直(zhi)接影響到(dao)紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)抗壓(ya)強(qiang)度(du)(du)(du)。瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)標準分A、B、C、D 4個等級,A 等質量(liang)(liang)(liang)(liang)指(zhi)標更(geng)高(gao),其(qi)常(chang)規檢(jian)驗的(de)(de)項目有(you): 水分、定(ding)量(liang)(liang)(liang)(liang)、緊(jin)(jin)度(du)(du)(du)、橫向環壓(ya)指(zhi)數(shu)(shu)(shu)和(he)(he)裂(lie)斷長等, 其(qi)中(zhong)橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、定(ding)量(liang)(liang)(liang)(liang)和(he)(he)緊(jin)(jin)度(du)(du)(du)指(zhi)標,對瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)邊壓(ya)強(qiang)度(du)(du)(du)影響較大。箱(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)(zhi)(zhi)一般(ban)用(yong)于紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)面紙(zhi)(zhi)(zhi)(zhi)(zhi)或里紙(zhi)(zhi)(zhi)(zhi)(zhi),其(qi)質量(liang)(liang)(liang)(liang)對紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)強(qiang)度(du)(du)(du)影響較大。普通(tong)箱(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)(zhi)(zhi)和(he)(he)牛皮掛面箱(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)(ban)分為優等品(pin)、一等品(pin)、合格品(pin)3種。檢(jian)測(ce)的(de)(de)項目有(you):水分、定(ding)量(liang)(liang)(liang)(liang)、緊(jin)(jin)度(du)(du)(du)、橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、耐(nai)(nai)破指(zhi)數(shu)(shu)(shu)、正反面吸(xi)水性、橫向耐(nai)(nai)折度(du)(du)(du)等, 其(qi)中(zhong)橫向環壓(ya)指(zhi)數(shu)(shu)(shu)、耐(nai)(nai)破指(zhi)數(shu)(shu)(shu)和(he)(he)定(ding)量(liang)(liang)(liang)(liang)對瓦(wa)(wa)(wa)(wa)楞紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)耐(nai)(nai)破度(du)(du)(du)、戳(chuo)穿強(qiang)度(du)(du)(du)和(he)(he)邊壓(ya)強(qiang)度(du)(du)(du)影響明(ming)顯,這些都是生產工藝(yi)實踐所證明(ming)的(de)(de)客觀(guan)事(shi)實。

所以(yi)(yi),原(yuan)(yuan)紙(zhi)(zhi)作為紙(zhi)(zhi)箱(xiang)質(zhi)(zhi)量的源(yuan)頭環節, 必須進行嚴密、有效的控制(zhi)。主要做法有:采(cai)購時(shi)在合同中要明確(que)原(yuan)(yuan)紙(zhi)(zhi)采(cai)購的品種、質(zhi)(zhi)量等級和(he)標(biao)準(zhun)項目(mu)的要求,檢(jian)驗(yan)項目(mu)、標(biao)準(zhun)值可(ke)以(yi)(yi)參照相(xiang)關的國標(biao), 也可(ke)以(yi)(yi)由供(gong)需雙方約定(ding)(ding)。應根據產品的特點確(que)定(ding)(ding)原(yuan)(yuan)紙(zhi)(zhi)的標(biao)準(zhun)和(he)檢(jian)驗(yan)項目(mu),如(ru)可(ke)對瓦(wa)楞紙(zhi)(zhi)、箱(xiang)板紙(zhi)(zhi)增(zeng)加施(shi)膠度(du)的檢(jian)測項目(mu), 因(yin)為原(yuan)(yuan)紙(zhi)(zhi)表面(mian)如(ru)果施(shi)膠度(du)好, 原(yuan)(yuan)紙(zhi)(zhi)就(jiu)不易(yi)吸(xi)濕, 裱貼時(shi)粘合劑(ji)吸(xi)收量相(xiang)應也少, 有利于紙(zhi)(zhi)板的干燥(zao)和(he)提高紙(zhi)(zhi)箱(xiang)強度(du)。

此外(wai),就是(shi)(shi)(shi)要對采購(gou)的(de)(de)(de)原紙(zhi)進(jin)行驗收,按(an)標準、按(an)合(he)同規定(ding)的(de)(de)(de)規則進(jin)行檢驗,這是(shi)(shi)(shi)保證采購(gou)質量的(de)(de)(de)重(zhong)要一(yi)環。因為(wei)買原紙(zhi)不是(shi)(shi)(shi)簡(jian)單的(de)(de)(de)買品種(zhong)、買數(shu)量,而是(shi)(shi)(shi)買原紙(zhi)的(de)(de)(de)標準和(he)質量, 可以說(shuo), 買合(he)格的(de)(de)(de)原紙(zhi),是(shi)(shi)(shi)降低(di)生產成本,提高紙(zhi)箱質量的(de)(de)(de)基礎。

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