瓦楞(leng)板(ban)(ban)(ban)紙(zhi)(zhi)平(ping)整度(du)(du)是(shi)紙(zhi)(zhi)箱生產(chan)(chan)技術中(zhong)的(de)(de)重要指標之一，它直(zhi)接(jie)關系到產(chan)(chan)品印(yin)(yin)(yin)刷(shua)、模(mo)(mo)切或開槽切角的(de)(de)質量。瓦楞(leng)板(ban)(ban)(ban)紙(zhi)(zhi)平(ping)整度(du)(du)差，會產(chan)(chan)生瓦楞(leng)紙(zhi)(zhi)板(ban)(ban)(ban)多種拱形(xing)狀、機械化吸附式送(song)印(yin)(yin)(yin)時容易(yi)卡住及造成紙(zhi)(zhi)板(ban)(ban)(ban)報(bao)廢(fei)而被迫(po)停機清理;雙色(se)(se)印(yin)(yin)(yin)刷(shua)或多色(se)(se)印(yin)(yin)(yin)刷(shua)中(zhong)容易(yi)產(chan)(chan)生著墨不(bu)勻、套色(se)(se)不(bu)準、顏(yan)色(se)(se)疊(die)邊出現空隙(xi)等;印(yin)(yin)(yin)開機上(shang)開槽尺寸(cun)(cun)位移(yi)，紙(zhi)(zhi)箱上(shang)下搖蓋(gai)重疊(die)或不(bu)合縫;模(mo)(mo)切送(song)料同(tong)樣會產(chan)(chan)生卡住和(he)尺寸(cun)(cun)位移(yi)等弊(bi)病(bing)，均有可能導致正片(pian)紙(zhi)(zhi)板(ban)(ban)(ban)次(ci)廢(fei)、或設備損傷而被迫(po)停機整理。總之，紙(zhi)(zhi)板(ban)(ban)(ban)平(ping)整度(du)(du)差會使送(song)料不(bu)便(bian)并造成生產(chan)(chan)過程中(zhong)次(ci)廢(fei)品增多。

瓦楞(leng)紙板平(ping)整度差的外(wai)觀形(xing)(xing)狀大體(ti)分為(wei)三種：橫向(xiang)拱形(xing)(xing)、縱向(xiang)拱形(xing)(xing)和任意拱形(xing)(xing)。

橫(heng)向拱(gong)(gong)形，是指沿著(zhu)瓦(wa)楞(leng)方向產(chan)生的拱(gong)(gong)形。

縱向拱(gong)形(xing)，是指(zhi)紙板(ban)沿著生(sheng)產線速度方向產生(sheng)的拱(gong)形(xing)。

任意(yi)拱形(xing)，是(shi)指沿著任意(yi)方向產生起(qi)伏(fu)的(de)拱形(xing)。面紙(zhi)表(biao)面拱起(qi)的(de)稱(cheng)(cheng)為(wei)正拱形(xing)，里紙(zhi)表(biao)面拱起(qi)的(de)稱(cheng)(cheng)為(wei)負拱形(xing)，面里紙(zhi)表(biao)面各有起(qi)伏(fu)的(de)稱(cheng)(cheng)為(wei)正負拱形(xing)。