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1、http://www.talwhw.cnhttp://www.cntcb.cnhttp://www.jxynj.comhttp://www.shanguo0538.com常用的包装材料性能差异的影响因素http://www.talwhw.cnhttp://www.cntcb.cnhttp://www.jxynj.comhttp://www.shanguo0538.com灰底白板纸和白卡纸是两种常用的包装材料。白板纸是由面浆与各层底浆抄制而成的。其结构主要分为底层、芯层、衬层、面层和涂层等部分。灰
2、底白板纸底面颜色为灰色,由废旧报纸经脱墨而成,所以底层的成分很杂;表面为白色,是一层由高岭土粉、黏合剂等化工原料混合而成的薄涂料面。表层(涂布面)白度较高,油墨吸收性、平滑度和印刷光泽度都很好,纸板本身又具有很好的挺度和耐折度,既能直接用来印刷,又能满足包装的要求。灰底白板纸表面经涂布处理后,表面性能有了很大的提高,既能够满足高质量的彩色印刷要求,又是中高档商品包装盒的优质材料。白卡纸是一种较厚实坚挺的白色卡纸,采用100%漂白硫酸盐木浆为原料,经过游离状打浆,较高程度地施胶(施胶度为1.0~1
3、.5arm),加入滑石粉、硫酸钡等白色填料,在长网造纸机上抄造,并经压光或压纹处理而制成。白卡纸一般为单面涂布,市场上主要分为sbs和fbb两种,前者以漂白化学浆为原料,两层结构,特点是白度较高,但同等定量纸板的挺度和厚度较差;后者以漂白化学浆作为纸板的表层和底层,而以机械浆为原料构成中间层,形成三层结构的纸板,其特点是在同等定量的条件下,厚度高,硬度好,从而带来良好的模切效果和折痕效果。WwW.11665.coMGrey,whitepaperandwhitecardboardistwokind
4、sofcommonlyusedpackagingmaterials.WhiteboardpaperismadefromMianJiangandeachlayerbottomslurryascopy.Itsstructureismainlydividedintothebottomlayer,corelayer,lining,coatingandsurfaceparts.Manilaboardbottomcolortogrey,composedofwastenewspapersafterdeinki
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7、cntcb.cnhttp://www.jxynj.comhttp://www.shanguo0538.comcolorprinting,packagingofhighqualitymaterialishigh-gradegoods.Whitecardboardisarelativelythicksolidwhitepaperboard,using100%bleachedsulphatewoodpulpasrawmaterial,afterbeatingYouLiZhuang,higherdegr
8、eetoglue(gluedegreeis1.0~1.5arm),jointhetalcumpowder,bariumsulfate,suchaswhitepacking,inthelongnetsmanufacturepaperwithpulponpapermachine,andthepressureorembossingprocessing,madeofalight.Generalforsingle-sidecoatedwhitecardboard,mainlyonthemarketisdi