丝网印刷ppt

ScreenProcessPrintingScreenprintingisthings,syntheticfibersilkfabricorwirestretchedovernetframe,usemanualcarvedpaintfilmorphotochemicalplatemakingmethodofmakingsilkscreenprintingblocks.Modernscreenprintingtechnology,istousephotographicmaterialsthroughthephotoengravingmethodofmakingscreenplate(tomakethescreenonthepartofthescreenandplateforthehole,andthegraphicpartofthescreenholebeblocked).Whenprintingbyscraperextrusion,maketheinkthroughgraphicpartofthenetsholetransferredtothethingonprinting,formationandtheoriginalofthesamepicturesandwords.Screenprintingequipmentissimple,theoperationisconvenient,printing,platemakingsimpleandcheap,strongadaptability.Screenprintingapplicationscopeisbroadcommonprinthave:colorpainting,poster,namecard,isdesignedtocover,commoditysignsandprintinganddyeingtextile,etc.丝网印刷是将丝织物、合成纤维织物或金属丝网绷在网框上，采用手工刻漆膜或光化学制版的方法制作丝网印版。现代丝网印刷技术，则是利用感光材料通过照相制版的方法制作丝网印版(使丝网印版上图文部分的丝网孔为通孔，而非图文部分的丝网孔被堵住)。印刷时通过刮板的挤压，使油墨通过图文部分的网孔转移到承印物上，形成与原稿一样的图文。丝网印刷设备简单、操作方便，印刷、制版简易且成本低廉，适应性强。丝网印刷应用范围广常见的印刷品有：彩色油画、招贴画、名片、装帧封面、商品标牌以及印染纺织品等。DefinitionOriginScreenprintingoriginatinginChina,overtwothousandyearsofhistory.AsearlyasinancientChineseqinandhandynastiesappearedclipJieprintingmethod.TotheeasternhandynastyJiewaxprintingmethodshavebeenperiodclipwidelypopular,andprintingproductthelevelhasalsobeenincreased.Fromthesuidynastytothegreat,peoplebegantousethestretchhavesilknetsofprintingonframe,maketheclipJieprintingtechnologydevelopmentforscreenprinting.Accordingtohistoryrecords,duringthetangdynastypalaceinthefineofadressisusefulthismethodtoprint.Inthesongdynastyscreenprintingandthedevelopment,andimprovedtheoriginaluseoilycoating,begantojoininthedyeofstarchpowder,tomakeitaslurryforscreenprinting,screenprintingthecoloroftheproductmorebeautiful.丝网印刷最早起源于中国，距今已有两千多年的历史了。早在中国古代的秦汉时期就出现了夹颉印花方法。到东汉时期夹颉蜡染方法已经普遍流行，而且印制产品的水平也有提高。至隋代大业年间，人们开始用绷有绢网的框子进行印花，使夹颉印花工艺发展为丝网印花。据史书记载，唐朝时宫廷里穿着的精美服饰就有用这种方法印制的。到了宋代丝网印刷又有了发展，并改进了原来使用的油性涂料，开始在染料里加入淀粉类的胶粉，使其成为浆料进行丝网印刷，使丝网印刷产品的色彩更加绚丽。BasicPrincipleScreenprintingbyfiveelements,namelythescreenplate,scrapingthescrapingboard,printingink,printingmachineandtheircontent.Screenprintingbasicprincipleis:usescreenplategraphicpartnetsholethroughprintingink,thegraphicpartnetsholethroughthebasicprincipleofprintingink.Whenprintingplateononeendintothescreenprintingink,scrapescrapingboardinthesilkscreenprintinginkpartsofexertsomepressure,andtheotherendplatemovingtowardthescreen.Inkonthemovewasscraperfromgraphicpartofthenetsholeinthesqueezethethingonprinting.丝网印刷由五大要素构成，即丝网印版、刮印刮板、油墨、印刷台以及承印物。丝网印刷基本原理是：利用丝网印版图文部分网孔透油墨，非图文部分网孔不透墨的基本原理进行印刷。印刷时在丝网印版一端上倒入油墨，用刮印刮板在丝网印版上的油墨部位施加一定压力，同时朝丝网印版另一端移动。油墨在移动中被刮板从图文部分的网孔中挤压到承印物上。ScreenPrintingPrincipleDiagramPrintingMethodDirectplate-makingmethodisinfirstwhenmakingwiththesensitivematerialofphotographicfilm,wristisfacingupflatonworkbenchface,willbestretchedgoodwristnetsboxofflatonbase,andtheninthenetsintheboxinpulpandphotographicsoftsqueegeepressurecoating,thedryafterfullypeeloffpiecesofplasticbase,attachmentofphotographicfilmcanbeusedforaversionofthewristscreen,theenhancement,dryafterthescreenprintingproducenetedition.直接制版的方法是在制版时首先将涂有感光材料腕片基感光膜面朝上平放在工作台面上，将绷好腕网框平放在片基上，然后在网框内放入感光浆并用软质刮板加压涂布，经干燥充分后揭去塑料片基，附着了感光膜腕丝网即可用于晒版，经显影、干燥后就制出丝印网版。Directplate-makingmethod工艺流程：已绷网——脱脂——烘干——剥离片基——曝光——显影——烘干——修版——封网Indirectplate-makingmethodIndirectplatemakingmethodistheindirectfilmfirstexposure,with1.2%watersclerosiswithwarmwaterafterenhancement,drymadeafterablativegraphicsfilm,whenmakingthefilmsurfaceandgraphicsfilmwillstretchtightgoodscreentiejin,throughthesqueezefilmandwetpasteitscreen,repeatoffbase,withthewindisblowndryscreenprintingnetsversion.间接制版的方法是将间接菲林首先进行曝光，用1.2%的H2O2硬化后用温水显影，干燥后制成可剥离图形底片，制版时将图形底片胶膜面与绷好的丝网贴紧，通过挤压使胶膜与湿润丝网贴实，揭下片基，用风吹干就制成丝印网版。工艺流程：1）.已绷网——脱脂——烘干2）.间接菲林——曝光——硬化——显影1和2——贴合——吹干——修版——封网3）直间混合制版法ScreenPrintingFlowChart手工丝网印刷自动丝网印刷TheCharacteristicsOfTheScreenPrinting(1)screenprintingcanuseavarietyoftypesofprintingink.Namely:oily,water,syntheticresinemulsiontype,powderandsoonvarioustypesofprintingink.(2)thelayoutsoft.Screenprintinglayoutsoftandhavecertainflexibilityinnotonlysuitableforpaperandfabricsandsoftgoodsprinting,andisalsosuitableforprintingoninharditems,suchasglass,ceramic,etc.(3)screenprintingpressureseallittleforce.Asintheprintingintheuseofthepressureissmall,soalsoissuitableforeasybrokenshoppingbodyonprinting.①丝网印刷可以使用多种类型的油墨。即：油性、水性、合成树脂乳剂型、粉体等各类型的油墨。②版面柔软。丝网印刷版面柔软且具有一定的弹性不仅适合于在纸张和布料等软质物品上印刷，而且也适合于在硬质物品上印刷，例如：玻璃、陶瓷等。③丝网印刷压印力小。由于在印刷时所用的压力小，所以也适于在易破碎购物体上印刷。(4)theinklayerthick,coverageabilityisstrong.(5)fromtheirsurfacestotheshapeoftherestrictionsandareasizerestrictions.Bytheforegoing,itcannotonlyscreenprintinginplaneprinting,andcanbeincurvedorthesphereprinting;Itnotonlysuitableforsmallobjectandprinting,butalsosuitableforprintingonbiggerobjects.Theprintingmodehastheverybigflexibilityandwidespreadapplicability.④墨层厚实，覆盖力强。⑤不受承印物表面形状的限制及面积大小的限制。由前述可知，丝网印刷不仅可在平面上印刷，而且可在曲面或球面上印刷；它不仅适合在小物体上印刷，而且也适合在较大物体上印刷。这种印刷方式有着很大的灵活性和广泛的适用性。SuitableScopeOfPrintingScreenp