解決方案

　　無(wu)碳復(fu)寫紙(zhi)(zhi)多應(ying)用(yong)于單(dan)據(ju)上。現有發(fa)票、合同(tong)、條約等(deng)有法律(lv)效(xiao)應(ying)的(de)正規單(dan)據(ju)已全(quan)部用(yong)上了(le)無(wu)碳復(fu)寫紙(zhi)(zhi)。傳統的(de)單(dan)據(ju)只(zhi)是普通的(de)紙(zhi)(zhi)張，所以必須要在單(dan)據(ju)下面加上一張復(fu)寫層。而無(wu)碳復(fu)寫紙(zhi)(zhi)，則是用(yong)特殊的(de)紙(zhi)(zhi)張裝訂的(de)。

　　就以三聯的無(wu)碳(tan)復寫紙(zhi)(zhi)(zhi)收據來說(shuo)，可以分(fen)為上紙(zhi)(zhi)(zhi)、中(zhong)紙(zhi)(zhi)(zhi)、下紙(zhi)(zhi)(zhi)。上紙(zhi)(zhi)(zhi)又(you)稱(cheng)背涂(tu)(tu)(tu)紙(zhi)(zhi)(zhi)(代號CB，即(ji)Coated Back),紙(zhi)(zhi)(zhi)的背面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)有(you)含力敏色(se)素(su)油的微(wei)膠囊;中(zhong)紙(zhi)(zhi)(zhi)又(you)稱(cheng)正反(fan)雙(shuang)涂(tu)(tu)(tu)紙(zhi)(zhi)(zhi)(代號CFB，即(ji)Coated Front and Back)，紙(zhi)(zhi)(zhi)的正面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)有(you)顯色(se)劑，背面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)有(you)含力敏色(se)素(su)油的微(wei)膠囊;下紙(zhi)(zhi)(zhi)又(you)稱(cheng)面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)紙(zhi)(zhi)(zhi)(代號CF，即(ji)Coated Front)，紙(zhi)(zhi)(zhi)面(mian)(mian)(mian)(mian)(mian)只涂(tu)(tu)(tu)有(you)顯色(se)劑。自(zi)顯色(se)紙(zhi)(zhi)(zhi)(代號SC，即(ji)Self-Contained)是在紙(zhi)(zhi)(zhi)的背面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)含力敏色(se)素(su)油的微(wei)膠囊層，正面(mian)(mian)(mian)(mian)(mian)涂(tu)(tu)(tu)顯色(se)劑和含力敏色(se)素(su)油的微(wei)膠囊。

　　上紙(zhi)和下紙(zhi)是不(bu)具備復寫(xie)效(xiao)(xiao)果的(de)，只(zhi)有(you)中紙(zhi)才具有(you)復寫(xie)效(xiao)(xiao)果。在使用(yong)(yong)由(you)無碳紙(zhi)印制出來的(de)單(dan)據時，一般(ban)都配有(you)一小塊紙(zhi)板(ban)隔(ge)在聯單(dan)上，以免書寫(xie)用(yong)(yong)力過大而造(zao)成墊在下面的(de)其他(ta)聯單(dan)被復寫(xie)到。

　　無碳紙大致(zhi)有(you)4種顏(yan)(yan)色(se)(se)之分;白(bai)/紅/藍/綠(lv)等四種顏(yan)(yan)色(se)(se)，起到區分聯(lian)單的作用。