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纸箱印刷中常出现的问题解决办法

发布时间:2020-03-21 10:03:20   作者:保定J9九游会AG纸板厂家   来源:dawnstea.com   浏览量:92

纸箱印刷中常常会(hui)呈现(xian)(xian)重形(xing),笔迹模糊,字体曲解(jie)及(ji)套(tao)印禁绝(jue)的现(xian)(xian)象(xiang)呈现(xian)(xian),以下将逐(zhu)一(yi)研讨呈现(xian)(xian)以上问题(ti)的成因及(ji)处理办法:

  纸箱印(yin)(yin)刷过程(cheng)中假如调(diao)整(zheng)不(bu)妥,往往会生成(cheng)印(yin)(yin)刷字体(ti)有重形(xing)(xing)呈(cheng)现,形(xing)(xing)成(cheng)这种现象主要(yao)是设备(bei)振荡过大或机速不(bu)稳所致;另外一个成(cheng)因与墨(mo)辊(gun)的(de)压(ya)力也有很大联系,处理这个现象咱们常用(yong)方法就是在出产前把墨(mo)辊(gun)压(ya)力调(diao)至最(zui)佳,开机出产进行中匀(yun)速开机,且设备(bei)应无“带病”开机,关(guan)于(yu)字体(ti)曲解套印(yin)(yin)禁绝(jue)则彻底(di)(di)取(qu)决于(yu)操作人(ren)员(yuan)(yuan)对设备(bei)的(de)调(diao)整(zheng)是否彻底(di)(di)到达(da)最(zui)佳状(zhuang)况(kuang),且与操作人(ren)员(yuan)(yuan)的(de)熟练程(cheng)度有关(guan);

  现今因为(wei)产品包装各厂商都有(you)严(yan)格的要(yao)求,像纸(zhi)(zhi)箱(xiang)类关于纸(zhi)(zhi)箱(xiang)承(cheng)压(ya)(ya)都有(you)很高要(yao)求,这(zhei)就要(yao)求印刷出(chu)产过程中(zhong)会严(yan)格控制(zhi)送(song)纸(zhi)(zhi)辊的间(jian)隙压(ya)(ya)力(li),避免压(ya)(ya)力(li)过大导致纸(zhi)(zhi)板厚(hou)度(du)受损(sun),WL也(ye)会因受压(ya)(ya)形成(cheng)愣形受损(sun),这(zhei)样(yang)就会直接导致成(cheng)型后的纸(zhi)(zhi)箱(xiang)承(cheng)压(ya)(ya)下(xia)降(jiang);

  另一个原(yuan)因(yin)影(ying)响纸(zhi)板(ban)(ban)厚度成(cheng)因(yin)与版(ban)面(mian)所(suo)用(yong)的(de)(de)材(cai)版(ban)也有很大(da)联系,本(ben)来纸(zhi)板(ban)(ban)厚度WL成(cheng)型能到(dao)(dao)达7.0mm~7.5mm,但(dan)通(tong)过印(yin)刷(shua)这个工序(xu)后只有7mm,有时乃至(zhi)达不(bu)到(dao)(dao)7mm,这是因(yin)为假(jia)(jia)如版(ban)面(mian)选用(yong)橡胶版(ban)且(qie)版(ban)面(mian)假(jia)(jia)如规划图画(hua)文(wen)字过大(da),在出产中为了确保印(yin)刷(shua)版(ban)面(mian)作用(yong),就(jiu)会顾及(ji)不(bu)到(dao)(dao)纸(zhi)板(ban)(ban)厚度,乃至(zhi)压力过大(da)会直(zhi)接导致WL压溃破损。据此,主张在大(da)面(mian)积要求高的(de)(de)产品,尽或(huo)许选用(yong)柔(rou)性版(ban)印(yin)刷(shua),削减因(yin)版(ban)面(mian)压力形成(cheng)的(de)(de)纸(zhi)板(ban)(ban)不(bu)合格现象(xiang);

  许多时分碰到印迹(ji)模糊(hu)的(de)现(xian)(xian)象人们都(dou)会选用(yong)清(qing)洗胶(jiao)版(ban)(ban)来处理(li),其实,这样做(zuo)都(dou)疏(shu)忽(hu)了压力的(de)问(wen)题(ti)(ti)以及(ji)重复调试版(ban)(ban)面而(er)形成版(ban)(ban)面积墨的(de)问(wen)题(ti)(ti),对此主张出(chu)产前,调试完毕后(hou)再清(qing)洗胶(jiao)版(ban)(ban),且(qie)根据胶(jiao)版(ban)(ban)的(de)质量将压力调至最佳状况,像印迹(ji)模糊(hu),重形现(xian)(xian)象根本(ben)能够不呈现(xian)(xian),关于透楞(leng)现(xian)(xian)象,呈现(xian)(xian)这种情(qing)况不排除纸板用(yong)材问(wen)题(ti)(ti);另一方面在于用(yong)墨的(de)浓度(du)以及(ji)下辊压力也有很大联系,如用(yong)墨浓度(du)不行太稀,那样会增加版(ban)(ban)面的(de)覆盖率,下降(jiang)透楞(leng)现(xian)(xian)象发作(zuo);

  在(zai)纸(zhi)箱(xiang)(xiang)印(yin)刷中(zhong)有(you)(you)一(yi)个(ge)(ge)不(bu)(bu)(bu)行忽视的(de)(de)问题(ti),那就是(shi)开(kai)(kai)槽带挂,切(qie)角(jiao)不(bu)(bu)(bu)洁(jie)净的(de)(de)现象(xiang),还有(you)(you)就是(shi)把(ba)(ba)手有(you)(you)裂开(kai)(kai)现象(xiang)的(de)(de)发作,像咱(zan)们常(chang)见的(de)(de)开(kai)(kai)槽不(bu)(bu)(bu)洁(jie)净,有(you)(you)挂边(bian)是(shi)纸(zhi)箱(xiang)(xiang)印(yin)刷中(zhong)经常(chang)呈(cheng)现的(de)(de)现象(xiang),这与纸(zhi)板原(yuan)料有(you)(you)关;另(ling)一(yi)方面与设备的(de)(de)磨损也有(you)(you)关,像处理这个(ge)(ge)问题(ti)可选用提高切(qie)槽深度,削减上(shang)刀与下(xia)刀的(de)(de)间(jian)隙,切(qie)不(bu)(bu)(bu)行能盲目换刀,再一(yi)个(ge)(ge)关于(yu)(yu)把(ba)(ba)手有(you)(you)裂开(kai)(kai),一(yi)般内(nei)切(qie)式(shi)不(bu)(bu)(bu)会呈(cheng)现面纸(zhi)裂开(kai)(kai),但关于(yu)(yu)外切(qie)把(ba)(ba)手,因面纸(zhi)直接(jie)受力,所(suo)以咱(zan)们在(zai)印(yin)刷中(zhong)一(yi)定做到预压,缓冲一(yi)下(xia),面纸(zhi)直接(jie)受力(在(zai)不(bu)(bu)(bu)影响质量和强度的(de)(de)情况下(xia))。

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