1、模(mo)切起(qi)毛、起(qi)塵　　

問(wen)題原因(yin)：在模(mo)(mo)切(qie)時(shi)(shi)，經(jing)常會(hui)出(chu)(chu)現(xian)模(mo)(mo)切(qie)產品切(qie)邊(bian)不光潔、起毛(mao)的現(xian)象，特別(bie)是離壓(ya)(ya)痕線較近的一些切(qie)邊(bian)處(chu)情(qing)況更為嚴重。這是由于在模(mo)(mo)切(qie)合壓(ya)(ya)時(shi)(shi)，模(mo)(mo)切(qie)版上的膠條、壓(ya)(ya)痕鋼線對紙張(zhang)產生了拉(la)力(li)，紙張(zhang)在未(wei)被(bei)完全切(qie)穿時(shi)(shi)就(jiu)被(bei)產生的拉(la)力(li)拉(la)斷，出(chu)(chu)現(xian)了毛(mao)邊(bian)。　　

解決方法：

首先要(yao)根據紙(zhi)(zhi)張選(xuan)(xuan)用(yong)(yong)不(bu)同(tong)(tong)類型(xing)的(de)模切刀。模切刀包(bao)括直紋(wen)刀和橫紋(wen)刀，兩種紋(wen)路的(de)刀鋒(feng)又(you)有高(gao)矮(ai)之分，刀鋒(feng)形成的(de)紋(wen)路和高(gao)矮(ai)不(bu)同(tong)(tong)，直接(jie)關系到(dao)模切質量和模切刀的(de)使用(yong)(yong)壽(shou)命(ming)。在避免模切起毛方面，直紋(wen)刀比橫紋(wen)刀好；在使用(yong)(yong)壽(shou)命(ming)方面，矮(ai)鋒(feng)刀比高(gao)鋒(feng)刀好。在模切覆膜卡紙(zhi)(zhi)時(shi)，應選(xuan)(xuan)用(yong)(yong)直紋(wen)高(gao)鋒(feng)刀，且(qie)要(yao)求刀鋒(feng)是磨(mo)制(zhi)的(de)，最好不(bu)要(yao)采用(yong)(yong)壓凹凸一次成型(xing)工藝，否則壓力太大(da)(da)會(hui)對模切產(chan)生很大(da)(da)影響；而在加工普通卡紙(zhi)(zhi)時(shi)宜選(xuan)(xuan)用(yong)(yong)矮(ai)鋒(feng)刀，并根據紙(zhi)(zhi)張纖維的(de)質量來確(que)定(ding)刀鋒(feng)的(de)紋(wen)路。

2、模切(qie)(qie)機壓(ya)(ya)(ya)痕(hen)產生(sheng)“爆線(xian)”和(he)(he)“暗(an)線(xian)”　　問(wen)題(ti)原(yuan)因：“爆線(xian)”是指由于模切(qie)(qie)壓(ya)(ya)(ya)痕(hen)的壓(ya)(ya)(ya)力過大，超(chao)過了紙張纖維的承受極限，使(shi)紙張纖維斷裂或(huo)部分斷裂；“暗(an)線(xian)”是指不應有的壓(ya)(ya)(ya)痕(hen)線(xian)，一般是由于模切(qie)(qie)版和(he)(he)壓(ya)(ya)(ya)痕(hen)鋼線(xian)選擇(ze)不合適、模切(qie)(qie)壓(ya)(ya)(ya)力調節不當、紙張質(zhi)量差、紙張纖維方向與模切(qie)(qie)版排刀方向不一致、紙張含水(shui)量低導致柔韌性(xing)下降等原(yuan)因所(suo)引起(qi)的。　

解決方法：選擇合適(shi)(shi)的(de)(de)模切(qie)(qie)版；適(shi)(shi)當調(diao)節模切(qie)(qie)壓(ya)力；在模切(qie)(qie)之前(qian)先把(ba)待模切(qie)(qie)的(de)(de)印刷品(pin)在車間里放置一段時間；提(ti)高車間環境的(de)(de)相對(dui)濕(shi)度。較好的(de)(de)方法是降低(di)壓(ya)痕(hen)(hen)鋼線的(de)(de)高度，降低(di)的(de)(de)高度通(tong)常為0.1～0.2mm，具體要根(gen)據紙張(zhang)(zhang)定(ding)量(liang)確定(ding)，定(ding)量(liang)在350g/m2以上的(de)(de)紙張(zhang)(zhang)需降低(di)的(de)(de)壓(ya)痕(hen)(hen)鋼線的(de)(de)高度為0.2mm，定(ding)量(liang)在350g/m2以下的(de)(de)紙張(zhang)(zhang)宜降低(di)0.1mm。

1, cutting fluff, dust from　　

Cause of the problem: when in the cutting, trimming cutting products often do not appear smooth, raising phenomenon, especially away from the crease line at the cutting edge closer to some of the more serious. This is due to meet the pressure in the mold, the die on the tape, steel wire indentation produced tension on the paper, the paper has not been completely cut through the tension generated when it was pulled off, the emergence of flash.　　Solution: First, we must choose different types of paper cutting knife. Straight knife cutting knives, including knives and stripes, two lines of the height of the blade there are points, lines and the formation of the blade height difference is directly related to the cutting quality and cutting tool life. Avoid cutting the fluff side, straight blade knife better than stripes; in service life, high and low front front knife a good knife. Coated paperboard in the die, the knife should be used Ruled Gao Feng, and asked the blade is polished, it is best not to use embossing a molding process, or cutting too much pressure will have a significant impact; in the processing should use short when ordinary cardboard front knife, based on the quality of the paper fibers to determine the blade's lines.　　

2, die-cutting machine creasing a "critical line" and "dark line"　　

Cause of the problem: "burst line" refers to cutting indentation pressure, exceeding the tolerance limits of the paper fibers, so that part of the paper fiber breakage or fracture; "dark line" refers to the undue indentation line, usually As the die and the indentation steel wire selection is inappropriate, improper cutting pressure regulation, poor quality paper, paper fiber direction and die-cutting direction inconsistent row, due to the low water content of paper decreased flexibility caused by other reasons.　　

Solution: Choose the appropriate die; proper cutting pressure adjustment; in the cutting die before the first print to be placed in the workshop for some time; increase the relative humidity of the workshop environment. A better approach is to reduce the height of indentation steel wire, reducing the height is usually 0.1 ~ 0.2mm, the specific quantitative determination according to the paper, quantitative in 350g/m2 paper to be lower than the indentation height of 0.2mm steel wire quantitative in the following paper 350g/m2 should reduce 0.1mm.