Microform

Classification

Canbeclassifiedfrom3aspects.①Accordingtoitsexternalform:a.Reeltype,includingopen-typereel,single-coreboxedreel,double-coreboxedreel;b.Producttype,includingstrips,envelopes,windowcards,Microfiche,microfiche,microfiche,microfiche.

②Accordingtothephotosensitivematerialsused,itisdividedintosilversaltfilm,drysilverfilm,diazofilm,andmicrobubblefilm.

③Accordingtowhetherthelightpenetratesitornot:a.Transparentparts,includingrolltypeandflatsheettype;b.Opaqueparts,includingmicroficheandmicroprint.

Features

Largeinformationcapacity,smallsizeandlightweight;eachpieceofinformationisfixedinoneofthepositioningsequences,andwillnotbelostormessedup;easytoachievemechanizationandautomationofretrieval;easytocopy,Enlargedorconvertedintoanothertypeofmicroform;canmaintainthetrueshapeoftheoriginalimage;canbestoredforalongtime,noteasytodeteriorate;theproductioncostandthecostofstorage,management,anddeliveryarelow;thespecificationsareneatandeasytoclean.

Function

Itcanbesummarizedas6points:

①Savestorageandsearchspace,generallyitcansavemorethan90%ofspacecomparedtopaper;

②Convenientretrievalandfiling,whichcangreatlysavemanpowerandtime;

③Improvetheeffectivenessofdistributinginformation,becauseofitssmallsize,lightweightanddenseinformation;④Protectrarematerials,andtheoriginalsarecapturedAfterthemicroforms,theycanbecollectedandused,andinformationcanbeprovidedfromthemicroforms;

⑤Replacealargenumberofout-of-dateandinfrequentpublicationdocumentsandaccountingvouchers,andtheoriginalscanbedestroyed;

⑥Asameansoffastandtimelypublicationanddistributionofthelatestliterature.Itcanalsobeusedasaformof"republishing"alargenumberofbackissuesofmanyimportantnewspapersandperiodicals.

⑦Canreducetheenvironmentalpollutionofthepaperindustry,helpreducepublichazardsandimprovetheecologicalenvironment.

Storageconditions

Ifthemicroformscanbestoredforalongtimewithoutdiscoloration,deformationanddamage,theremustbeproperstorageconditionsandstrictstoragesystems.Storagefactorsthataffectthelifeofmicroformsinclude:temperatureandhumidityatstorageanduse,containersofmicroforms,harmfulgasesanddustintheenvironment,thegeneralstandardtemperatureofthestorageroomis15-25℃,andtherelativehumidityis30-40%..Microformcontainerscanbedividedintoopen,airtight,andairtight,allofwhichmustbemadeofmaterialsthatarenotharmfultothefilm.Harmfulgasesintheenvironmentare:hydrogensulfide,sulfurousacid,hyposulfite,ammonia,nitrogendioxide,etc.,sowhenusingairconditioning,usewateroractivatedcarbontofilter.Alsopayattentiontothehazardsofthegasproducedbythepaint.Dustintheaircanscratch,contaminatethefilm,andalsobringinharmfulsubstances,soyoumustoftensuckthedust.Strictstoragesystem,firstofall,wemustdoagoodjobinindoorsanitation,smokingisstrictlyprohibited,waterpipesarepreventedfromleaking,operatingproceduresforcontactwithmicroformsareobserved,andthestorageofmicroformsisregularlyinspectedandsoon.