常用的包裝材料性能差異的影響因素

1、灰底白板紙和白卡紙是兩種常用的包裝材料。白板紙是由面漿與各層底漿抄制而成的。其結(jié)構(gòu)主要分為底層、芯層、襯層、面層和涂層等部分?；业装装寮埖酌骖伾珵榛疑蓮U舊報紙經(jīng)脫墨而成，所以底層的成分很雜；表面為白色，是一層由高嶺土粉、黏合劑等化工原料混合而成的薄涂料面。表層（涂布面）白度較高，油墨吸收性、平滑度和印刷光澤度都很好，紙板本身又具有很好的挺度和耐折度，既能直接用來印刷，又能滿足包裝的要求。灰底白板紙表面經(jīng)涂布處理后，表面性能有了很大的提高，既能夠滿足高質(zhì)量的彩色印刷要求，又是中高檔商品包裝盒的優(yōu)質(zhì)材料。白卡紙是一種較厚實堅挺的白色卡紙，采用100%漂白硫酸鹽木漿為原料，經(jīng)過游離狀打漿，較高程

2、度地施膠（施膠度為1.01.5arm）,加入滑石粉、硫酸鋇等白色填料，在長網(wǎng)造紙機上抄造，并經(jīng)壓光或壓紋處理而制成。白卡紙一般為單面涂布，市場上主要分為sbs和fbb兩種，前者以漂白化學(xué)漿為原料，兩層結(jié)構(gòu)，特點是白度較高，但同等定量紙板的挺度和厚度較差；后者以漂白化學(xué)漿作為紙板的表層和底層，而以機械漿為原料構(gòu)成中間層，形成三層結(jié)構(gòu)的紙板，其特點是在同等定量的條件下，厚度高，硬度好，Grey,whitepaperandwhitecardboardistwokindsofcommonlyusedpackagingmaterials.WhiteboardpaperismadefromMianJian

3、gandeachlayerbottomslurryascopy.Itsstructureismainlydividedintothebottomlayer,corelayer,lining,coatingandsurfaceparts.Manilaboardbottomcolortogrey,composedofwastenewspapersafterdeinking,soatthebottomofthecompositionisverycomplex;Surfaceiswhite,itisalayerofkaolinpowder,binderandotherchemicalrawmateri

4、als,mixtureofthincoatingsurface.Surface(coatedsurface)highwhiteness,printinginkabsorbency,smoothnessandglossaregood,stiffnessofthepaperitselfalsohastheverygoodandfolding,canusetoprintdirectly,andcansatisfytherequirementofpackaging.Manilaboardsurfaceaftercoatingtreatment,surfaceperformancehasgreatlyi

5、mproved,bothcansatisfytherequirementofthehighqualitycolorprinting,packagingofhighqualitymaterialishigh-gradegoods.Whitecardboardisarelativelythicksolidwhitepaperboard,using100%bleachedsulphatewoodpulpasrawmaterial,afterbeatingYouLiZhuang,higherdegreetoglue(gluedegreeis1.01.5arm),jointhetalcumpowder,

6、bariumsulfate,suchaswhitepacking,inthelongnetsmanufacturepaperwithpulponpapermachine,andthepressureorembossingprocessing,madeofalight.Generalforsingle-sidecoatedwhitecardboard,mainlyonthemarketisdividedintoSBSandFBBtwokinds,theformertothebleachedchemicalpulpasrawmaterial,twolayerstructure,characterizedbywhitedegreeishigher,butthesamequantitativestiffnessandthicknessofthecardboardispoorer;Forbleachedchemicalpulpasasurfaceandthebottomboard,andusingmechanicalpulpasrawmaterialsformthemiddletier,cardboardformthreelayerstructure,itscharacteristicisunderth