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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(lei):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(zhi)的紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang),其價(jia)格也截然不(bu)同(tong),并且價(jia)格與原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的品種(zhong)、質(zhi)量等級(ji)關系較大。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)就是要根據紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的使用(yong)(yong)特點(dian)和(he)(he)運(yun)輸條(tiao)件確(que)定用(yong)(yong)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)品種(zhong)和(he)(he)質(zhi)量, 這是保持適度(du)包裝(zhuang),控制(zhi)生產成本(ben)所值(zhi)得重視的環節。制(zhi)作(zuo)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)箱(xiang)的原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)主要包括白紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)、瓦楞紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、茶板(ban)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、普(pu)通箱(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)和(he)(he)牛(niu)皮(pi)掛(gua)面箱(xiang)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)板(ban)等, 這些(xie)原(yuan)紙(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的制(zhi)作(zuo)工藝和(he)(he)材料上(shang)的不(bu)同(tong),標準也有所差異。

涂布白(bai)紙板有(you)白(bai)底和灰(hui)底兩種,質量等(deng)級也(ye)有(you)優等(deng)品、一等(deng)品、合格品三種,檢(jian)測(ce)的項目(mu)有(you):水分、定(ding)量、定(ding)量偏(pian)差、橫幅(fu)定(ding)量差、緊度、亮度(白(bai)度)、印刷(shua)表面粗(cu)糙度、平滑度、印刷(shua)光(guang)澤度、油墨吸(xi)(xi)收性、印刷(shua)表面強度、吸(xi)(xi)水性、橫向挺度和塵埃度等(deng)。白(bai)紙板是預(yu)印紙箱面紙的采用材料, 白(bai)紙板的質量對紙箱的印刷(shua)和強度都有(you)較大的影響。

白紙(zhi)板(ban)的(de)水(shui)分、印刷(shua)(shua)表(biao)(biao)面(mian)粗糙度(du)、平滑(hua)度(du)和(he)(he)(he)表(biao)(biao)面(mian)強(qiang)度(du)等(deng), 對(dui)印刷(shua)(shua)質量的(de)影(ying)(ying)響(xiang)比(bi)較敏(min)感, 水(shui)分對(dui)印刷(shua)(shua)版面(mian)的(de)套準(zhun)會有一定的(de)影(ying)(ying)響(xiang), 而印刷(shua)(shua)表(biao)(biao)面(mian)粗糙度(du)、平滑(hua)度(du)和(he)(he)(he)表(biao)(biao)面(mian)強(qiang)度(du)指標對(dui)印刷(shua)(shua)質量影(ying)(ying)響(xiang)較大, 如印刷(shua)(shua)油墨(mo)層能否(fou)飽和(he)(he)(he)、紙(zhi)面(mian)印刷(shua)(shua)后(hou)能否(fou)出現脫(tuo)層和(he)(he)(he)起泡問題。白紙(zhi)板(ban)的(de)橫向挺度(du)則影(ying)(ying)響(xiang)到(dao)紙(zhi)箱(xiang)的(de)抗壓強(qiang)度(du);白紙(zhi)板(ban)的(de)緊度(du)不(bu)(bu)是越高越好,而是規定不(bu)(bu)大于(yu)一個(ge)標準(zhun)值,如優等(deng)品(定量≤300g/m 2)不(bu)(bu)大于(yu)0.88g/cm3。

因為(wei)如(ru)(ru)果白紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)緊度(du)過高,紙(zhi)(zhi)(zhi)箱(xiang)(xiang)搖蓋的(de)(de)耐(nai)折(zhe)度(du)就會明(ming)顯下(xia)降,使用(yong)過程中搖蓋就容易出現斷(duan)裂(lie)(lie)現象。瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)多(duo)用(yong)于紙(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)(de)瓦(wa)(wa)楞(leng)(leng)層,也有(you)的(de)(de)用(yong)于瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)夾芯層或里(li)層。用(yong)于瓦(wa)(wa)楞(leng)(leng)層的(de)(de)瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi), 它的(de)(de)質(zhi)(zhi)量如(ru)(ru)何直接(jie)影(ying)響(xiang)到紙(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)(de)抗(kang)壓強(qiang)度(du)。瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)的(de)(de)標(biao)準(zhun)分A、B、C、D 4個(ge)等級,A 等質(zhi)(zhi)量指(zhi)(zhi)標(biao)更高,其(qi)常規檢驗的(de)(de)項目有(you): 水(shui)分、定(ding)量、緊度(du)、橫(heng)(heng)向(xiang)環壓指(zhi)(zhi)數和裂(lie)(lie)斷(duan)長(chang)等, 其(qi)中橫(heng)(heng)向(xiang)環壓指(zhi)(zhi)數、定(ding)量和緊度(du)指(zhi)(zhi)標(biao),對瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)邊壓強(qiang)度(du)影(ying)響(xiang)較大。箱(xiang)(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)一般用(yong)于紙(zhi)(zhi)(zhi)箱(xiang)(xiang)面(mian)紙(zhi)(zhi)(zhi)或里(li)紙(zhi)(zhi)(zhi),其(qi)質(zhi)(zhi)量對紙(zhi)(zhi)(zhi)箱(xiang)(xiang)的(de)(de)強(qiang)度(du)影(ying)響(xiang)較大。普通箱(xiang)(xiang)板(ban)(ban)紙(zhi)(zhi)(zhi)和牛皮掛(gua)面(mian)箱(xiang)(xiang)紙(zhi)(zhi)(zhi)板(ban)(ban)分為(wei)優(you)等品、一等品、合格品3種(zhong)。檢測的(de)(de)項目有(you):水(shui)分、定(ding)量、緊度(du)、橫(heng)(heng)向(xiang)環壓指(zhi)(zhi)數、耐(nai)破指(zhi)(zhi)數、正(zheng)反面(mian)吸水(shui)性、橫(heng)(heng)向(xiang)耐(nai)折(zhe)度(du)等, 其(qi)中橫(heng)(heng)向(xiang)環壓指(zhi)(zhi)數、耐(nai)破指(zhi)(zhi)數和定(ding)量對瓦(wa)(wa)楞(leng)(leng)紙(zhi)(zhi)(zhi)板(ban)(ban)的(de)(de)耐(nai)破度(du)、戳穿強(qiang)度(du)和邊壓強(qiang)度(du)影(ying)響(xiang)明(ming)顯,這些都是生產(chan)工藝實踐所證明(ming)的(de)(de)客觀(guan)事實。

所(suo)以(yi),原紙(zhi)作(zuo)為紙(zhi)箱質量(liang)的(de)(de)(de)源頭環節, 必須進行嚴密、有(you)(you)效的(de)(de)(de)控制。主要做法有(you)(you):采(cai)購(gou)時在合同(tong)中要明確原紙(zhi)采(cai)購(gou)的(de)(de)(de)品(pin)種、質量(liang)等級和標(biao)準(zhun)(zhun)項(xiang)目的(de)(de)(de)要求,檢(jian)(jian)驗(yan)項(xiang)目、標(biao)準(zhun)(zhun)值可(ke)(ke)以(yi)參照相關的(de)(de)(de)國標(biao), 也可(ke)(ke)以(yi)由供需雙方約定。應根據產(chan)品(pin)的(de)(de)(de)特點(dian)確定原紙(zhi)的(de)(de)(de)標(biao)準(zhun)(zhun)和檢(jian)(jian)驗(yan)項(xiang)目,如可(ke)(ke)對瓦(wa)楞紙(zhi)、箱板紙(zhi)增加施膠(jiao)(jiao)度的(de)(de)(de)檢(jian)(jian)測項(xiang)目, 因為原紙(zhi)表面如果(guo)施膠(jiao)(jiao)度好, 原紙(zhi)就不(bu)易吸濕, 裱貼時粘合劑吸收(shou)量(liang)相應也少(shao), 有(you)(you)利于紙(zhi)板的(de)(de)(de)干燥和提高紙(zhi)箱強度。

此(ci)外,就是(shi)要對采(cai)購(gou)(gou)的(de)(de)原(yuan)(yuan)(yuan)紙進行(xing)驗收,按標準、按合同規定(ding)的(de)(de)規則(ze)進行(xing)檢(jian)驗,這是(shi)保證采(cai)購(gou)(gou)質量(liang)(liang)的(de)(de)重要一環。因為買原(yuan)(yuan)(yuan)紙不(bu)是(shi)簡(jian)單的(de)(de)買品種(zhong)、買數量(liang)(liang),而是(shi)買原(yuan)(yuan)(yuan)紙的(de)(de)標準和質量(liang)(liang), 可以說(shuo), 買合格(ge)的(de)(de)原(yuan)(yuan)(yuan)紙,是(shi)降(jiang)低生(sheng)產(chan)成本,提高紙箱質量(liang)(liang)的(de)(de)基(ji)礎。

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