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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(wen)答 時間:2020-04-26 10:00:24

不(bu)同(tong)結構、不(bu)同(tong)材質的(de)(de)(de)紙(zhi)(zhi)(zhi)(zhi)箱(xiang),其(qi)價格(ge)也截然不(bu)同(tong),并且價格(ge)與原(yuan)紙(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)品種(zhong)(zhong)、質量(liang)等級關系較大。制作紙(zhi)(zhi)(zhi)(zhi)箱(xiang)就是要根(gen)據紙(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)使用(yong)特點和(he)運輸(shu)條(tiao)件(jian)確定用(yong)紙(zhi)(zhi)(zhi)(zhi)品種(zhong)(zhong)和(he)質量(liang), 這是保持適(shi)度包(bao)(bao)裝,控(kong)制生產成本所(suo)值得重視的(de)(de)(de)環節(jie)。制作紙(zhi)(zhi)(zhi)(zhi)箱(xiang)的(de)(de)(de)原(yuan)紙(zhi)(zhi)(zhi)(zhi)主(zhu)要包(bao)(bao)括白紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)、瓦楞紙(zhi)(zhi)(zhi)(zhi)、茶(cha)板(ban)(ban)紙(zhi)(zhi)(zhi)(zhi)、普通箱(xiang)紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)和(he)牛皮掛面箱(xiang)紙(zhi)(zhi)(zhi)(zhi)板(ban)(ban)等, 這些原(yuan)紙(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)制作工(gong)藝和(he)材料(liao)上的(de)(de)(de)不(bu)同(tong),標準也有所(suo)差(cha)異(yi)。

涂布(bu)白(bai)紙(zhi)(zhi)板(ban)有白(bai)底和(he)(he)灰底兩(liang)種,質量等(deng)級也有優等(deng)品、一等(deng)品、合格品三種,檢(jian)測的項目(mu)有:水分(fen)、定(ding)量、定(ding)量偏差(cha)、橫幅定(ding)量差(cha)、緊度(du)(du)(du)、亮度(du)(du)(du)(白(bai)度(du)(du)(du))、印(yin)刷表面(mian)粗糙度(du)(du)(du)、平(ping)滑度(du)(du)(du)、印(yin)刷光澤(ze)度(du)(du)(du)、油(you)墨吸收性、印(yin)刷表面(mian)強度(du)(du)(du)、吸水性、橫向挺度(du)(du)(du)和(he)(he)塵埃度(du)(du)(du)等(deng)。白(bai)紙(zhi)(zhi)板(ban)是預印(yin)紙(zhi)(zhi)箱面(mian)紙(zhi)(zhi)的采用材料, 白(bai)紙(zhi)(zhi)板(ban)的質量對紙(zhi)(zhi)箱的印(yin)刷和(he)(he)強度(du)(du)(du)都有較大的影響。

白紙板(ban)的(de)(de)水(shui)分(fen)、印(yin)(yin)刷(shua)(shua)表(biao)面(mian)(mian)粗(cu)糙(cao)度(du)(du)、平滑度(du)(du)和表(biao)面(mian)(mian)強度(du)(du)等, 對(dui)印(yin)(yin)刷(shua)(shua)質量(liang)(liang)的(de)(de)影(ying)響(xiang)比較敏(min)感, 水(shui)分(fen)對(dui)印(yin)(yin)刷(shua)(shua)版面(mian)(mian)的(de)(de)套準(zhun)會有一(yi)(yi)定(ding)的(de)(de)影(ying)響(xiang), 而印(yin)(yin)刷(shua)(shua)表(biao)面(mian)(mian)粗(cu)糙(cao)度(du)(du)、平滑度(du)(du)和表(biao)面(mian)(mian)強度(du)(du)指標對(dui)印(yin)(yin)刷(shua)(shua)質量(liang)(liang)影(ying)響(xiang)較大, 如(ru)印(yin)(yin)刷(shua)(shua)油墨層(ceng)能否飽(bao)和、紙面(mian)(mian)印(yin)(yin)刷(shua)(shua)后(hou)能否出現(xian)脫層(ceng)和起泡問(wen)題。白紙板(ban)的(de)(de)橫(heng)向挺度(du)(du)則(ze)影(ying)響(xiang)到紙箱的(de)(de)抗壓強度(du)(du);白紙板(ban)的(de)(de)緊度(du)(du)不(bu)(bu)是(shi)越(yue)高越(yue)好,而是(shi)規定(ding)不(bu)(bu)大于(yu)(yu)一(yi)(yi)個標準(zhun)值,如(ru)優等品(定(ding)量(liang)(liang)≤300g/m 2)不(bu)(bu)大于(yu)(yu)0.88g/cm3。

因為(wei)如(ru)果白紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)的(de)緊度(du)(du)(du)過高(gao),紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)搖(yao)蓋的(de)耐(nai)(nai)折度(du)(du)(du)就(jiu)會明顯下降(jiang),使用(yong)(yong)過程中搖(yao)蓋就(jiu)容易出(chu)現斷裂現象(xiang)。瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)多用(yong)(yong)于(yu)紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)瓦楞(leng)(leng)層,也有(you)(you)的(de)用(yong)(yong)于(yu)瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)夾芯層或里層。用(yong)(yong)于(yu)瓦楞(leng)(leng)層的(de)瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi), 它的(de)質(zhi)量如(ru)何直接影(ying)響(xiang)到(dao)紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)抗壓(ya)強度(du)(du)(du)。瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)標(biao)準分A、B、C、D 4個(ge)等級(ji),A 等質(zhi)量指標(biao)更高(gao),其(qi)常(chang)規檢(jian)驗的(de)項(xiang)目有(you)(you): 水分、定(ding)(ding)量、緊度(du)(du)(du)、橫(heng)向(xiang)環壓(ya)指數(shu)和(he)(he)裂斷長等, 其(qi)中橫(heng)向(xiang)環壓(ya)指數(shu)、定(ding)(ding)量和(he)(he)緊度(du)(du)(du)指標(biao),對(dui)瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)的(de)邊壓(ya)強度(du)(du)(du)影(ying)響(xiang)較大(da)。箱(xiang)(xiang)(xiang)板(ban)紙(zhi)(zhi)(zhi)(zhi)(zhi)一(yi)般用(yong)(yong)于(yu)紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)面紙(zhi)(zhi)(zhi)(zhi)(zhi)或里紙(zhi)(zhi)(zhi)(zhi)(zhi),其(qi)質(zhi)量對(dui)紙(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)(xiang)(xiang)的(de)強度(du)(du)(du)影(ying)響(xiang)較大(da)。普(pu)通箱(xiang)(xiang)(xiang)板(ban)紙(zhi)(zhi)(zhi)(zhi)(zhi)和(he)(he)牛皮(pi)掛(gua)面箱(xiang)(xiang)(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)分為(wei)優等品、一(yi)等品、合格(ge)品3種。檢(jian)測的(de)項(xiang)目有(you)(you):水分、定(ding)(ding)量、緊度(du)(du)(du)、橫(heng)向(xiang)環壓(ya)指數(shu)、耐(nai)(nai)破指數(shu)、正反面吸水性(xing)、橫(heng)向(xiang)耐(nai)(nai)折度(du)(du)(du)等, 其(qi)中橫(heng)向(xiang)環壓(ya)指數(shu)、耐(nai)(nai)破指數(shu)和(he)(he)定(ding)(ding)量對(dui)瓦楞(leng)(leng)紙(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)的(de)耐(nai)(nai)破度(du)(du)(du)、戳穿強度(du)(du)(du)和(he)(he)邊壓(ya)強度(du)(du)(du)影(ying)響(xiang)明顯,這些都是(shi)生(sheng)產工藝實踐所證明的(de)客(ke)觀事實。

所以,原(yuan)紙(zhi)(zhi)作(zuo)為(wei)紙(zhi)(zhi)箱質量(liang)的源頭(tou)環節, 必須進(jin)行嚴密、有效的控制(zhi)。主(zhu)要(yao)做法有:采(cai)購(gou)時在合同中要(yao)明(ming)確(que)原(yuan)紙(zhi)(zhi)采(cai)購(gou)的品種、質量(liang)等級和(he)標(biao)準(zhun)(zhun)項(xiang)(xiang)目的要(yao)求,檢(jian)(jian)驗(yan)項(xiang)(xiang)目、標(biao)準(zhun)(zhun)值可以參照相關的國標(biao), 也可以由(you)供需(xu)雙方約定。應(ying)根據產品的特點確(que)定原(yuan)紙(zhi)(zhi)的標(biao)準(zhun)(zhun)和(he)檢(jian)(jian)驗(yan)項(xiang)(xiang)目,如(ru)可對瓦楞紙(zhi)(zhi)、箱板(ban)紙(zhi)(zhi)增加施膠度的檢(jian)(jian)測項(xiang)(xiang)目, 因為(wei)原(yuan)紙(zhi)(zhi)表面如(ru)果施膠度好(hao), 原(yuan)紙(zhi)(zhi)就不易吸(xi)濕, 裱貼時粘合劑(ji)吸(xi)收量(liang)相應(ying)也少, 有利于紙(zhi)(zhi)板(ban)的干(gan)燥(zao)和(he)提高紙(zhi)(zhi)箱強度。

此外,就是(shi)(shi)要對采(cai)(cai)購的(de)(de)原(yuan)紙(zhi)進(jin)行驗收,按(an)標準、按(an)合(he)同規(gui)定的(de)(de)規(gui)則進(jin)行檢驗,這是(shi)(shi)保證采(cai)(cai)購質量的(de)(de)重要一(yi)環。因(yin)為買原(yuan)紙(zhi)不是(shi)(shi)簡單的(de)(de)買品種、買數量,而是(shi)(shi)買原(yuan)紙(zhi)的(de)(de)標準和質量, 可以說, 買合(he)格(ge)的(de)(de)原(yuan)紙(zhi),是(shi)(shi)降低生產成本,提高紙(zhi)箱質量的(de)(de)基礎。

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