印(yin)(yin)刷品在(zai)生產(chan)過(guo)程中(zhong)想(xiang)絕對(dui)的(de)完美就必(bi)須取保整個過(guo)程，沒有任何瑕疵，否則(ze)印(yin)(yin)刷出來的(de)產(chan)品東西都是不能算作優質(zhi)產(chan)品了。印(yin)(yin)刷刀線是比較常(chang)見的(de)印(yin)(yin)刷事故，這是怎么引(yin)起的(de)呢?

首先(xian)是油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)細度(du)的(de)(de)(de)影(ying)響，油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)顆粒的(de)(de)(de)細膩(ni)程(cheng)(cheng)(cheng)度(du)直接影(ying)響切(qie)割線(xian)的(de)(de)(de)出現(xian)頻(pin)率(lv)。例如(ru)，藍(lan)色油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)中(zhong)(zhong)(zhong)(zhong)使用(yong)的(de)(de)(de)顏料顆粒具有(you)(you)較高(gao)(gao)的(de)(de)(de)硬(ying)度(du)，并(bing)且即使在(zai)(zai)充(chong)分(fen)拋(pao)光(guang)后也難(nan)以(yi)達到(dao)非常細的(de)(de)(de)顆粒程(cheng)(cheng)(cheng)度(du)，所以(yi)在(zai)(zai)印(yin)(yin)刷過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)容易(yi)(yi)(yi)刮(gua)(gua)傷。刮(gua)(gua)刀(dao)(dao)或(huo)刮(gua)(gua)墨(mo)(mo)(mo)(mo)(mo)刀(dao)(dao)的(de)(de)(de)影(ying)響通常會導致油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)印(yin)(yin)版出現(xian)刀(dao)(dao)線(xian)故障。油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)粘度(du)的(de)(de)(de)影(ying)響油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)粘度(du)應(ying)與印(yin)(yin)刷速度(du)相匹配。油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)粘度(du)太(tai)高(gao)(gao)，滾筒附著(zhu)力(li)太(tai)強(qiang)。這不利于刮(gua)(gua)刀(dao)(dao)刮(gua)(gua)去刮(gua)(gua)板上(shang)多余的(de)(de)(de)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)，印(yin)(yin)刷線(xian)條的(de)(de)(de)概率(lv)很高(gao)(gao)。在(zai)(zai)印(yin)(yin)刷過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)，應(ying)定(ding)期測量和(he)控制油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)粘度(du)，通常每20分(fen)鐘至(zhi)30分(fen)鐘一次。墨(mo)(mo)(mo)(mo)(mo)水(shui)干(gan)(gan)(gan)得太(tai)快，容易(yi)(yi)(yi)干(gan)(gan)(gan)結(jie)。如(ru)果硬(ying)外殼在(zai)(zai)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)循環過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)不溶(rong)解(jie)，一旦與刮(gua)(gua)刀(dao)(dao)接觸，它(ta)將粘附在(zai)(zai)刀(dao)(dao)的(de)(de)(de)邊緣(yuan)或(huo)刀(dao)(dao)的(de)(de)(de)底部，形成印(yin)(yin)刷切(qie)割線(xian)。如(ru)果油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)循環系統(tong)采用(yong)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)槽，油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)結(jie)殼和(he)結(jie)塊的(de)(de)(de)可(ke)能性(xing)更大(da)。為了減少這種刀(dao)(dao)線(xian)故障的(de)(de)(de)發生，油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)槽中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)應(ying)經常攪(jiao)拌。根據(ju)需(xu)要加入(ru)適量的(de)(de)(de)緩(huan)干(gan)(gan)(gan)劑(ji)；如(ru)有(you)(you)必要，可(ke)增加密封面，以(yi)有(you)(you)效控制和(he)減少印(yin)(yin)刷刀(dao)(dao)線(xian)故障。油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)活(huo)性(xing)的(de)(de)(de)影(ying)響在(zai)(zai)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)生產過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)，通常要加入(ru)一定(ding)量的(de)(de)(de)活(huo)性(xing)劑(ji)。鍍鉻后的(de)(de)(de)印(yin)(yin)版滾筒具有(you)(you)一定(ding)的(de)(de)(de)活(huo)性(xing)。如(ru)果油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)和(he)印(yin)(yin)版滾筒太(tai)活(huo)，在(zai)(zai)印(yin)(yin)刷過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)會有(you)(you)生物(wu)緊緊地附著(zhu)在(zai)(zai)滾筒上(shang)，刮(gua)(gua)刀(dao)(dao)很難(nan)從刀(dao)(dao)上(shang)刮(gua)(gua)下。清潔印(yin)(yin)版滾筒以(yi)去除(chu)表面上(shang)的(de)(de)(de)活(huo)性(xing)物(wu)質，并(bing)將活(huo)性(xing)緩(huan)凝劑(ji)添加到(dao)油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)中(zhong)(zhong)(zhong)(zhong)以(yi)消除(chu)切(qie)割線(xian)。當(dang)墨(mo)(mo)(mo)(mo)(mo)水(shui)儲(chu)存時間過長時，溶(rong)劑(ji)平衡會發生變化(hua)(hua)，導致墨(mo)(mo)(mo)(mo)(mo)水(shui)溶(rong)解(jie)，或(huo)者墨(mo)(mo)(mo)(mo)(mo)水(shui)的(de)(de)(de)配比和(he)使用(yong)不當(dang)，導致化(hua)(hua)學反(fan)應(ying)和(he)墨(mo)(mo)(mo)(mo)(mo)水(shui)沉淀(dian)。在(zai)(zai)印(yin)(yin)刷過程(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)，油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)沉淀(dian)物(wu)很容易(yi)(yi)(yi)在(zai)(zai)刮(gua)(gua)刀(dao)(dao)處積聚，從而形成刀(dao)(dao)紋(wen)，需(xu)要更換油(you)(you)(you)墨(mo)(mo)(mo)(mo)(mo)。

印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)布(bu)局平滑度的(de)影響；如果(guo)凹版(ban)(ban)(ban)(ban)(ban)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)板(ban)(ban)在(zai)拋(pao)光(guang)(guang)過(guo)(guo)(guo)程(cheng)中(zhong)(zhong)不拋(pao)光(guang)(guang)毛刺，印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)過(guo)(guo)(guo)程(cheng)中(zhong)(zhong)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)板(ban)(ban)毛刺上(shang)的(de)油墨(mo)不容(rong)(rong)易(yi)(yi)被刮除，刮刀嚴重損(sun)壞(huai)(huai)形成刀具。對于(yu)因印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)表面(mian)粗糙造成的(de)切(qie)刀，可(ke)以(yi)用1200目(mu)細砂紙(zhi)輕輕打磨(mo)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)，但一般最(zui)好(hao)不要打磨(mo)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)，以(yi)免(mian)損(sun)壞(huai)(huai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)。制版(ban)(ban)(ban)(ban)(ban)時(shi)，如果(guo)鍍鉻時(shi)間過(guo)(guo)(guo)長(chang)，印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)表面(mian)鍍鉻層的(de)硬度過(guo)(guo)(guo)高，容(rong)(rong)易(yi)(yi)損(sun)壞(huai)(huai)刮刀，印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)上(shang)的(de)鋼(gang)網也會發(fa)生(sheng)變化。相反(fan)，如果(guo)鍍鉻過(guo)(guo)(guo)短，印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)表面(mian)的(de)鍍鉻層太軟，刮墨(mo)容(rong)(rong)易(yi)(yi)損(sun)壞(huai)(huai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)，印(yin)(yin)(yin)(yin)(yin)(yin)(yin)品上(shang)出現(xian)固定的(de)切(qie)割(ge)線(xian)。印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)滾筒的(de)加工精度差，也會導致印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)刀線(xian)故(gu)障(zhang)(zhang)(zhang)，難以(yi)檢(jian)(jian)測或檢(jian)(jian)查，容(rong)(rong)易(yi)(yi)被忽視。在(zai)實際(ji)操作中(zhong)(zhong)，可(ke)以(yi)在(zai)機器(qi)上(shang)進行(xing)檢(jian)(jian)查。另外，可(ke)以(yi)嚴格控制印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)的(de)安裝精度，避免(mian)高速印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)時(shi)同心度誤(wu)差超標對刮刀造成太大(da)沖擊而(er)導致印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)刀線(xian)故(gu)障(zhang)(zhang)(zhang)的(de)發(fa)生(sheng)。印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)研磨(mo)過(guo)(guo)(guo)程(cheng)中(zhong)(zhong)產生(sheng)的(de)碎片未完全清除并(bing)粘附在(zai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)上(shang)，這可(ke)能會在(zai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)過(guo)(guo)(guo)程(cheng)中(zhong)(zhong)損(sun)壞(huai)(huai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)和刮刀，從而(er)產生(sheng)切(qie)割(ge)線(xian)。在(zai)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)上(shang)印(yin)(yin)(yin)(yin)(yin)(yin)(yin)刷(shua)(shua)(shua)之前，最(zui)好(hao)用溶(rong)劑徹底清洗印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)，去除油污和雜質，減少印(yin)(yin)(yin)(yin)(yin)(yin)(yin)版(ban)(ban)(ban)(ban)(ban)切(qie)割(ge)線(xian)的(de)故(gu)障(zhang)(zhang)(zhang)。