Development
Countriesintheworldregardthedevelopmentofnewmaterialsasanimportantaspectofeconomicdevelopmentandtechnologicalprogress.Variousnewtextilefibersareusedasimportantmaterialsintoday'shigh-techfields.Theglobalmarketfornewfiberproductsexceeds100billionU.S.dollarsandhasbecomeoneofthenew"strategicpillarindustries"inthetextileindustry.
Thenewtextilefiberindustryhasthecharacteristicsofhightechnologycontent,largemarketscale,wideindustrycoverage,andsignificantpullingeffect.Atthesametime,thenewgenerationofnewfibertechnologyisalsoanimportantpartofthedevelopmentofemergingindustriesduringmycountry's"TwelfthFive-YearPlan"period.Vigorouslydevelopthenewtextilefiberindustryandachievebreakthroughsinkeytechnologiesandindustries,whichwillhelpenhancethecorecompetitivenessofmycountry'stextileindustryandpromoteindustrialtransformation.Theupgradeisofgreatsignificance.
Newfibersusedinknitwearindustryaccountedfor80%,andhouseholdtextilesaccountedfor20%.mycountry'snewfibermarketisnotonlylarge,buttheaverageprofitrateofitsproductsisrelativelyhigh,1-2timesthatofpurecottonproducts.Sinceitsmainproductionmaterialisanewtypeoffiber,thehugefluctuationsincottonpriceshavebasicallynegligibleimpactoncorporateprofits.Allrelevantenterprisesshouldpayattentiontothedevelopmentofnewtextilefiberindustrywhileimprovingthetextilefiberindustrychain,scientificallygraspthetrendandrhythmoftechnologicaldevelopment,anddeployhigh-techresearchinadvance,andstrivetorealizetheleapfromfollowingdevelopmenttoleadingdevelopmentinmycountry’stextileindustry.
Overview
Conceptualfeatures
1.Definition:Fiberisanaturalorsyntheticfilamentoussubstance,andtextilefiberreferstowhatisusedtoweavecloth.fiber.
2.Characteristicsoftextilefiber:textilefiberhasacertainlength,fineness,elasticity,strengthandothergoodphysicalproperties.Italsohasgoodchemicalstability.Forexample,naturalfiberssuchascotton,wool,silkandhempareidealtextilefibers.
Basicclassification
Textilefiberclassification:naturalfiberandchemicalfiber.
①Naturalfibersincludeplantfibers,animalfibersandmineralfibers.
APlantfibersuchascotton,hemp,fruitfiber.
BAnimalfiberssuchaswool,rabbithair,silk.
Cmineralfibersuchasasbestos.
②Chemicalfibersincluderegeneratedfibers,syntheticfibersandinorganicfibers.
ARegeneratedfibersuchasviscosefiber,acetatefiber.
BSyntheticfiberssuchas:nylon,polyester,acrylic,spandex,vinylon,polypropylene,polychloride
Cinorganicfiberssuchas:glassfiber,metalfiber,etc.
4.Textilepropertiesofcommontextilefibers:
(1)Wool:moistureabsorption,elasticity,wearabilityaregood,notresistanttoinsects,acidandmetal-bounddyes.
(2)Silk:goodmoistureabsorption,breathability,lusterandwearability,suitableforacidanddirectdyes.
(3)Cotton:breathable,moisture-absorbing,goodwearability,insect-resistant,suitablefordirect,reduction,azo,alkalinemedium,sulfur,andreactivedyes.
(4)Viscosefiber:hygroscopicity,goodairpermeability,brightcolor,widesourceofrawmaterials,lowcost,natureclosetonaturalfiber,applicabledyesarethesameascotton.
(5)Polyester:fabric,stiff,cool,goodshaperetention,abrasionresistance,dimensionalstability,easytowashanddry,suitablefordispersedyes,diazodispersedyes,solublevatdyes.
(6)Nylon:particularlygoodabrasionresistance,poorairpermeability,suitableforaciddyesandbulkdyes.
(7)Acrylicfiber:goodfluffy,furryfeel,suitablefordispersedyesandcationicdyes.
(8)Vinylon:Thebestmoistureabsorption,usuallyusedinropes,fishingnets,etc.
(9)Polypropylene:thelightesttexture,abrasion-resistant,durable,andnon-balling.
(10)Chlorine:noteasytoburn,oftenusedasknittedunderwear,plush,industrialfiltercloth,workclothes,etc.
(11)Spandex:thehighestelasticity,highelongation,highelasticity,oftenusedastights,butitisnotcoloredandhastheloweststrength.
Identification
Identificationmethod
Theidentificationmethodsincludehandfeel,visualinspection,combustionmethod,microscopemethod,dissolutionmethod,drugcoloringmethodandinfraredspectroscopy,etc..Inactualidentification,itisoftennecessarytousemultiplemethodstoobtainresultsaftercomprehensiveanalysisandresearch.
Identificationsteps
A.First,usethecombustionmethodtoidentifynaturalfibersandchemicalfibers.
B.Ifitisanaturalfiber,usemicroscopeobservationtoidentifyvarioustypesofplantfiberandanimalfiber.Ifitisachemicalfiber,thedifferenceinmeltingpoint,specificgravity,refractiveindex,andsolubilityofthecombinedfiberwillbedistinguishedonebyone.
C.Whenidentifyingblendedfibersandblendedyarns,amicroscopecangenerallybeusedtoconfirmthatitcontainsseveralfibers,andthenuseappropriatemethodstoidentifythemonebyone.
D.Fordyedorfinishedfibers,dyeingstrippingorotherappropriatepretreatmentsaregenerallyrequiredtoensurereliableidentificationresults.
Recommendationofportablemicroscopeformicroscopyidentificationmethod
Comparedwiththetraditionalidentificationtooldesktopmicroscope,theidentificationoftextilefiberscanonlybelimitedtotheexperiment,butnotuniversalFactoryworkshops,farms,andtradedeliverysites,whiletheinspectionandidentificationoftextilefibersaregenerallycarriedouton-siteidentificationinfactoriesorfarms.PortablemicroscopesarenowmainlyAnytyportablemicroscopes,whosecuttingcangivetextilefibersThedetectionandidentificationprovidethelateston-sitedetectionandidentificationresults.
Thevaluebroughtbytheon-sitemicroscopetotextileidentification:
1.Datasharing;AnytyportablemicroscopeisgenerallyintegratedWiththefunctionofdigitalimaging,thedataobservedbythemicroscopecanbepresentedtoallpeoplepresentatthesametime,facilitatingdiscussionandcommunication.
2.Portabilityandsimpleoperation;Anytyportablemicroscopehasstrongportability,easytocarry,andsimpleoperation,whichcanbreakthroughthelimitationsoftimeandspace,andcanbecarriedoutinrealtimeinanyoccasionObservationisdifferentfromtheimmovabilityoftraditionalmicroscopes.
3.Inheritance,becausetheAnytyportablemicroscopehasthefunctionoftakingphotosandvideos,theimagesdetectedatanytimeandanywherecanbestoredandbackedup,Theidentificationresultofeachpicturecanbecomeanaccumulationofexperience,andprovidereferencematerialsforthenextappraiser!
Combustioncharacteristics
Combustionpropertiesofcommonfibers:
Thenear-flamephenomenonoffibersintheflamewillsmellashesafterleavingtheflame
Theflameburnsandburns.Thereisafterglow.Burningpapersmell.Ashesarerarelyfineandsoft.Greyblackflocculent
Thehairmeltsawayfromtheflameandmeltsandburns.Itisdifficulttoburnandself-extinguishing.Fragile
Thesilkmeltsawayfromtheflame.Thesilksoundisdifficulttocontinueburningandself-extinguishing.Singeingtasteisfragileandbrittle.Fluffyblackparticles.
Nylonsoftensandshrinks.Blueflame.Flavorlightbrowntransparentroundbead-likenoteasytobreak
Polyesternearflamemelting,dripping,bubbling,continuedburning,weakfragrance,hardroundblack,lightbrown,noteasytobreak
Combustion,rapidburning,splash,spicytaste,brittle,irregular,darkbrown,blockyorspherical,fragile
Calculationmethod
Textilefiber,yarnfinenesscalculation:
Fix-lengthsystem:
TEX:Theweightofa1000-meter-lengthyarnataconstantmoistureregainiscalledaspecialnumber.
Formula:TEX=(G/L)*1000
where:Gistheweightoftheyarn(grams)andListhelengthoftheyarn(meters)
Denier(Denier):Theweightingramsofa9000-meter-longsilkatagivenmoistureregainiscalleddenier.
Formula:NTEX=(G/L)*9000
where:Gistheweightoftheyarn(grams)andListhelengthofthesilk(meters)
Constantweightsystem:
Metriccount(publiccount):thelengthof1gramofyarn(silk)inmeters,whichisthepubliccountoftheyarn(silk).Ä
Formula:NM=L/G
Where:Listhelength(yards)oftheyarn(silk),andGistheweight(lbs)oftheyarn(silk)
p>Inchcount(Englishcount):Thenumberof840yardsinlengthof1poundofyarnistheBritishcountoftheyarn.
Formula:NE=(L/G)*840
where:Listhelengthoftheyarn(silk)(meters),andGistheweightoftheyarn(silk)(grams))
Commonrawmaterials
Purecottonyarn:36TEX(16S),28TEX(21S),18*2TEX(32S/2),15TEX(40S),14*2TEX(42S/2),10*2TEX(60S/2)
Developmentstatus
Chinaisabigcountryintheproductionandexportoftextiles.Afteryearsofdevelopment,theChinesetextileindustryhasaverycompetitiveadvantage.Obviously,withtheworld'smostcompleteindustrialchain,thehighestlevelofprocessingandsupportingfacilities,theself-adjustmentabilityofmanydevelopedindustrialclusterstorespondtomarketriskshasbeencontinuouslyenhanced,whichprovidesasolidguaranteefortheindustrytomaintainasteadypaceofdevelopment.
Fromtheperspectiveoftheinternationalenvironment,thereisstillmuchroomandopportunityforexpansionintheinternationalmarket.WiththeexpirationofChina-EUtextilequotasattheendof2007andtheendofChina-UStextilequotasattheendof2008,theeraofquota-freetextilesinChinaisapproaching,andregionsthataccountformorethan60%oftheglobaltextilemarketwillbefullyopenedup,whichwillbringtoChina'stextiletrade.Greatopportunity.Inthenextfewyears,theworldeconomywillstillbeintherisingrange,whichwillsurelypromotethegrowthofinternationaltrade,whichwillbringfavorableinternationalmarketprotectiontothegrowthofChina'stextileandapparelexports.
Fromtheperspectiveofthedomesticeconomicenvironment,domesticdemandwillbecomeanimportantdrivingforceforindustrygrowth.About80%ofChinesetextilesareconsumeddomestically.Withthesustainedandrapidgrowthofthedomesticeconomy,thesteadyincreaseinresidents'incomewillstimulatethefurtherdevelopmentofthedomesticdemandmarket.
Chinesetextilecompaniesshouldovercomethedifficultiesofrisingrawmaterials,appreciationoftherenminbiandadjustmentofexporttaxrebates,seizeopportunitiesinthedevelopmentofthetextileindustry,increaseindustrialconcentration,curbtheblindexpansionofinefficientproductioncapacity,andincreasespecialtyindustriesTheconstructionoftheparkwillstrengthenthepaceofindependentinnovation,enhancethebrandbuildingofChina'stextileindustry,andcarryoutindustrialadjustmentsandupgrades.MakeChinafromatextilepowertoatextilepower.
QuestionsandAnswers
Q:Whatistheconceptoffiberspinnability?
Answer:Textilefibersarerelatedtoyarnqualityandspinningdifficulty.Thecomprehensivephysicalpropertiesarecalledspinnability.Undernormalproductionconditions,thebetterthespinnabilityofthefiber,thebetterthequalityoftheyarn,andtheeasierthespinningprocess.Thespinningmethodsaredifferent,thequalityofthespunyarnandtherequirementsforthespinnabilityofthefiberarealsodifferent.Thespinnabilityofmodernspinningyarnsisevaluatedbasedonproductqualityandtechnicalandeconomicindicators.Thevariousindividualphysicalpropertiesofthefiberalludetoitsspinnability.
Length:Whenthenaturalfiberislongandtheregularityisgood,theyarnhashighstrength,uniformevenness,smoothsurfaceandlesshairiness.Lengthisanimportantfactorindeterminingspinnability.Inadditiontothelengthofthemainbody,theshortfibercontenthasagreaterimpactonthestrengthofthespunyarnandtheuniformityofthesliver.Thelengthanduniformityofchemicallycutfibercanbecontrolled.Toolonglengthwillnotimprovethequalityoftheyarn,butwillcauseprocessingdifficultiesandincreaseyarndefects.
Fineness:finefiber,uniformyarnevennessandhighstrength.Butthefiberistoothin,thefiberiseasytotwistandformneps,nepsandotherdefectsduringprocessing.Thefiberisthick,thefabricisstiff,abrasion-resistantandelastic.Forrelativelycoarsenaturalfiberssuchaswoolandhemp,finenessisthemainfactordeterminingspinnability.Woolfibersdeterminetheirspinnablecountsaccordingtotheirdiameter.Finenessisalsothemainbasisforwoolgradeassessment.
Strength:Itisthemostimportantfactorthatdeterminesthestrengthoftheyarn.Whenotherconditionsremainunchanged,thehigherthefiberstrength,thehighertheyarnstrength.
Impuritiesanddefects:Impuritiesanddefectsaffectthespinningprocessandproductquality.Althoughthereareimpurityremovalmeasuresinthespinningprocess,theimpurityremovalprocesswillcausefurthersplittingofimpuritiesandnewdefects.Therefore,thehigherthecontentofimpuritydefectsintherawmaterial,theworsethespinnability.
Sugar,cottonwaxincottonfiber,hempglueinhempfiber,etc.willaffectthespinnabilityofthefiber,therebyaffectingthespinningprocessandproductquality.
Fibercrimping,fiberfrictionandelectricalconductivitywillaffectthespinnabilityofthefiber.
Q:Whatistheprincipleofbatchingcotton?
Answer:Therulesforbatchinglintcottonaremoredetailed.Thebatchtype,ginningmethod,mainbodygrade,lengthgrade,andmainmicronaireleveloflintcottonshouldbethesame.Thetypeherereferstowhitecotton,yellowcotton,andgraycotton;theginningmethodreferstorollercottonandserratedcotton.
Theoriginalstandardstipulates:"Inthesamebatchofcotton,34%ofadjacentgradecottonisallowed.Whenthisnumberisexceeded,itshallbepricedseparately."Inordertoimprovethequalityofcotton,thenewstandardstipulates:"Inthesamebatchofcotton,cottonthatcrossesthemaingradeisnotallowed;theproportionofcottonofthegradeadjacenttothemaingradeshallnotexceed20%.Thosewhodonotconformshouldbesortedoutornegotiated."Thenewstandardabolishestheunreasonable"34/66"regulationsoftheoriginalstandard,whichisalsooneofthemajorreformsofthenewstandard.
Here,"Thosewhodonotmatchshouldbesortedoutornegotiatedanddealtwith"herefortwosituations.Forapairofvisainspections,whencottonbatchesareassembled,iftheinspectionfindsthatthegradedoesnotmeettherequirementsofthenewstandard,itshouldbesortedoutsothatthebatchofcottongradescanmeetthestandardrequirementsbeforethecertificatecanbegroupedandapproved.Forexample,themaingradeisgradethree,andgradetwoandgradefourcottonareallowed,andthesumofgradetwoandgradefourshallnotexceed20%.Inthisbatchofcotton,nogradesotherthangradetwo,threeandfourareallowedOfcotton.Whenthecottoncertificateisissued,oncethereisacross-subjectgradeofcottonorthesumofthesecondandfourthgradesexceeds20%,itisrequiredtopickupandarrangetomakethebatchofcottongrademeetthestandardrequirements.Second,foruserinspection,iftheuser'sinspectionfindsthatthequalityofcottondoesnotmeetthestandardqualityrequirements,itshouldbedealtwiththroughconsultationwiththesupplier.Ofcourse,ifthenegotiationfails,youcanapplytoaprofessionalfiberinspectionagencyforinspection,andtheinspectioncertificateissuedbytheprofessionalfiberinspectionagencyshallprevail.
Batchofcottoncanbecertificatedseparately,andthecottonafterthecertificateiscalculatedaccordingtotheinspectionresultsoftheoriginalcertificate.Itisnotappropriatetoagreebetweenbatches.Whenacertificateisrequiredforsporadiccotton,thetype,ginningmethod,mainbodygrade,lengthgradeandmainmicronairelevelmustbethesame.Thedifferenceinmoistureregainbetweenthebagandtheroomisnomorethan1%,andthedifferenceinimpuritycontentisnomorethan0.5%.Alltheaboveconditionsmustbemetbeforethecertificationcanbecombined,otherwisethecertificationcannotbecombined.Themoistureregainrateandimpuritycontentrateaftercertificationarecalculatedaccordingtotheweightedaverageofthenetweight.
Q:Howtoreducethecostofcottonassembling?
Answer:Intermsofequipment:maintainingthenormalmechanicalstateofeachprocessistocorrectlyhandlethecontradictionbetweenimprovingqualityandsavingcottonImportantpremise.Especiallyforthecontradictionbetweennepsandimpuritiesandsavingcotton,the"fivequickandonestandard"cardingandneedlegrindingoperationmethodmustbemaintained.Thisisanextremelyimportantbasicworkthatmustbepaidcloseattentiontofrequently.Inaddition,strengtheningthenoiltestandtimelyoverhaulingthecleaningandcardingnoilmachineinresponsetothenoilsituationisalsoaregularmeasuretosavecottonfromtheaspectofequipment.
Intermsofcraftsmanship
1.Improvethecleaningefficiencyandnoilcontentrateofeachblowerandcardingmachine.Thenoilcontentrateofthecleaningmachines(exceptthecottonboxmachinery)isrequiredtobecontrolledatmorethan60%.Ifitislow,therewillbewhitening.Thecleaningefficiencyofthecleaningmachineisrequiredtoreach65%,andthenoilmixingrateofthecarbellyafterthecardingmachineisrequiredtoreach40%.Ifitislow,therewillbewhitening.Thetotalremovalefficiencyofthecardingmachineisrequiredtoreach92%ormore.Ifitfailstomeettherequirements.Measuresmustbetakentoimprovetheprocessandmachinery.
2.Accordingtotheperformanceofrawcotton,thecleaningandcardingcanbearthenoilreasonably.Ifthematurityoftherawcottonisgood,thefinenessisrelativelythick,therearefewsmalldefectsandalotofcoarseimpurities,itissuitableforclearingthecottonwithmorefall:cardedcottonhaslessfall;onthecontrary,iftherawcottonhaspoormaturity,fineness,andmanysmallimpuritiesbutfewlargeimpurities,Thecleaningcottonshouldnotbedroppedtoomuch,itisbettertocardthecottontoomuch.
3.Reducetheproductionofshortlintintheprocessesofcleaning,combing,sliveringandthickening.Shortlintisproducedduringthegrowthofcottonandbadginningprocess,butitwillcontinuetobeproducedduringthevariousprocessesofcottonspinning.Thecleaningprocessproducesabout1%,andthecardingprocessproducesabout3%.ThisisNormalphenomenon,iftoomuchlintisproducedduetopoormechanicalconditionandimproperprocessdesign(eveninthethicksliverprocess),itwillcausetoomuchflying,increaseinslubs,deteriorationofsliver,andyarnbreakageIncreasesandotherills,whichaffecttheoutput,qualityandcostoftheproduct.Therefore,itisnecessarytostudyhowtoreducetheincreaserateofshortlintasmuchaspossibleinthevariousprocessesofcottonspinning,andmainlygraspthefollowingtwolinksintermsofmechanicalconditions:(1)Theblowandcardingelementsoftheblowingandcardingmachinesaresharpandsmooth.,Thedistanceiscorrect;(2)Reducethechanceofsqueezing,returningandhittingback.
Intermsofoperation
Startingfromcleaningandunpacking,whethertheoperationsofeachprocessandeachtypeofworkarecarriedoutinaccordancewiththeoperatingprocedures,notonlyforthequality,butalsowithThecostimpactisgreat.Forexample,excessivebloomingisoftencausedbypooroperation,whichwillincreasethecostoflaborandpower.Whenchemicalfiberandpurecottonareblended,thecorrectcontrolofthespecifiedblendingratioisoftenrelatedtotheoperation.Iftheblendedproductsandpurecottonproductsareaccidentallymixed,causingqualityaccidents,theproblemisevenmoreserious.
Inthetreatmentofwastecotton
Reuseandreusecottonreasonably.Replacerawcottonwithreusedcotton,whichisoneoftheimportantwaystoreducethecostofcotton.Theso-calledrationalreuseandreuseofcotton,firstlyreferstotheneedtobeprocessed,andsecondlyreferstotheamountofrecycledcottontobecontrolled,soasnottoaffectthequality.Generally,theimpurities,harmfuldefects,neps,linters,etc.inthereusedcottonareproperlyremovedbeforereuse.Somecanbereusedintheoriginalexpenditure,andmostcanbereducedandreused.Thisincludesneedle-cutting,combingnoil,net-bellyflowerthatcanbereusedforlow-thicknessyarn,top-qualitybrokenseeds,etc.Whenarrangingtheplan,asmallnumberofmachinescanbeusedtospincoarseyarnorsub-brandyarn,sothatthereusedcottonproducedbytheenterprisecanbereusedintheenterpriseasmuchaspossible,whichwillreducetheamountanduseofcottonusedbytheentireenterpriseCottoncostsarebeneficial.
Strictlymanagethetemperatureandhumidityoftheprivateroom.Thetimeandfrequencyofmoistureregaindeterminationshouldbedeterminedaccordingtothepackagingtimeandfrequency,especiallyinthecaseofhighatmospherichumidity.Boththeelectricmoistureregainmeterandthescalemustbecheckedfrequently,andadedicatedpersonshallberesponsiblefortheweighing.Itisalsoveryimportanttomeasureandcorrectthefixedlengthoftheyarnframe.Dotheaboveworktoavoidweightloss.
Q:Howabouttheperformancetestandspinnabilityofnaturalcoloredcotton?
Answer:Althoughnaturalcoloredcottonhasalonghistoryofplanting,itisduetoitslowyieldandfiberlength.Duetoshortcomingsandlowstrength,thedevelopmenthasbeenslowforalongtime.Inrecentyears,withhumanbeingsadvocatingenvironmentalprotection,healthandenergyconservation,asmoderngeneticengineeringtechnologyiswidelyusedinbreedingtechnology,thecomprehensivequalityofnaturalcoloredcottonhasbeensignificantlyimprovedandimproved.
Onthewhole,themicronairevalueofnaturalcoloredcottonvarietiesislower,thefinenessisfiner,andthebreakingstrengthislower.Thecontentofneps,cottondustandimpuritiesareobviouslyhigher,butthereisnoobviousdifferenceinmaturity;mostofXinjiangnaturalcoloredcottonhasgoodphysicalandmechanicalpropertiesandcomprehensivequality,andhasgoodspinnability.
Amongthefournewcolorcottonvarietiesthathavebeenfinalized,thebrownlineXinCaimianNo.1andthegreenlineXinCaimianNo.3havegoodlength,fineness,lengthuniformityandmaturity.Thequalityisbetter,thespinnabilitycoefficientishigher,andthespinnabilityisbetter.
ThebestphysicalandmechanicalpropertiesofXinjiangnaturalcoloredcottonisZayou224.Exceptfortheimpurityanddustcontenthigherthanordinarywhitecotton,theotherindicatorsareclosetoorbetterthanordinarywhitecotton.Inparticular,the2.5%spanlengthindexofthefiberisnotonlysuperiortoordinarywhitecottonvarieties,butalsoclosetonewvarietiesofwhitecotton,whichhasgoodcomprehensivequalityandspinnability.
ThepooreroverallqualityofXinjiangnaturalcoloredcottonisGreen402.Itsfiberlengthistheshortest,thelengthistheworst,theshortfibercontentbelow16mmisthehighest,thestrengthisthelowest,thequalityispoor,andthespinnabilityisbetter.Low,needsfurtherimprovement.
Repeatwashingprocesscandeepenthecolorofnaturalcoloredcotton.Browncottonhasamoreuniformcolorthangreencotton.Whenexposedtosunlight,thecolorofbrowncottonwilldeepen,whilegreencottonwillfade.
Q:Willchemicalfibersreplacenaturalfibers?
Answer:Cotton,hemp,silk,andwool,asthefourmajornaturalfibersinthetraditionalsense,havebeenusedinthehistoryofclothing.Thousandsofyearsofhistory.Beforethe1980s,naturalfibersstillmonopolizedthehigh-endapparelfabricmarket.However,sincethelate1980s,thestatusofsyntheticfiberproductshasgraduallyincreasedduetoimprovementsintheperformanceofchemicalfibers,especiallysyntheticfiberfabrics,intermsofthermal,wetcomfort,handfeel,glossandappearance.Theappearanceandwearabilityofsomechemicalfiberimitationcotton,silkandwoolproductsaresimilartothoseofnaturalfiberfabrics,andsomewearpropertiesareevenbetterthannaturalfibers.Therefore,itisdeeplylovedbyconsumers.Therapidgrowthofchemicalfiberproductionhascausedtheproportionofnaturalfibertodecline,butitstillaccountsformorethanhalfoftheproportion.
Willnaturalfibersbegraduallyreplacedbychemicalfibers?Infact,consumerspsychologicallyprefernaturalfibers.Aslongastheperformanceisnotlowerthanchemicalfiberproducts,consumerswillchoosenaturalfiberproducts.However,naturalfabricscannotstayattheoriginallevelofdevelopment.Naturalfiberfabricsarebeingimprovedanddevelopedfromthefollowingaspects.
1.Genemutationandperformanceimprovement:Thecombinationofnaturalfibersandgeneticengineeringhaschangedthetruecolorsofnaturalfibers,expandedtheapplicationrangeoffibers,andincreasedtheircompetitivenesswithchemicalfibers.Forexample;throughhybridization,geneticmutationandothermeans,developedcoloredcottonwithnaturallightyellow,green,pinkandothercolors;theShanghaiInstituteofPlantPhysiologyandEcology,ChineseAcademyofSciencesusedkeratingenesisolatedfromrabbitstotransferintocotton.Thecottonfiberhasthequalityofrabbithair:thedevelopmentofcoloredwool,RussiaandAustraliahavebredcoloredsheep,thecolorsofwhichare:blue,red,yellowandbrown.Theemergenceofthesecoloredmaterialswillundoubtedlybringrevolutionarychangestothetextileindustry.Mexicohascultivatedanultra-longcottonvarietywithparticularlylongfibers,goodneatness,softtouchandbeautifulluster.Japanisusingthisultra-longfibertomakehigh-endfabricsandclothing.
2.Fiberblendingandimprovedwearability:Duetothedifferentpropertiesofnaturalfibers,man-madefibers,andsyntheticfibers,theyallhavecertainadvantagesanddisadvantages,andtheresourcesofnaturalfibersarelimited.Fiberdrawsonitsstrengthstomakeupforitsweaknesses,greatlyimprovingtheusabilityoftheproduct.Forexample:woolcanbeblendedwithavarietyoffiberstomeetavarietyofneeds.Woolblendedproductswithawoolcontentoflessthan35%canimpartcertaincharacteristicstotheblendedfabric.Blendedfabricswithhighwoolcontentaregenerallyblendedwithwoolandothernaturalfibers.
3.Payattentiontofinishingandhighlightindividualization:naturalfibercotton,wool,silkandotherfabricsaresandwashedthroughphysicalorchemicalmethodstoachievelightnessandsoftness;naturalfibersareprintedanddyedtoproduceQualitychanges,suchassandingfinishingtomaketheproductfeeldelicate,washingwithbiologicalenzymefinishingtomakeitsofttothetouch,deepfinishingtomakethefabricwaterproofandbreathable,andshapememoryfinishingtomakethefabricshrink-proofandwrinkle-proof.Sothatnaturalfiberscanachievethefunctionsofcomfortablewearing,antibacterial,anti-ultraviolet,disinfection,anti-mold,mothproof,etc.,hasbecomeanewgrowthpointofnaturalfibersandamajortrendinthedevelopmentofnaturalfiberfabrics.
Four.Developmentandapplicationofbiologicalenzymes:Thedevelopmentandapplicationofbiologicalenzymesisasuccessfulcombinationoftextileandbiotechnology.Itisaspecialenzymeagentforvariousfibers,suchascellulose.Enzymesandproteasescangreatlyincreasetheeffectivenessoffinishingandreduceenvironmentalpollution.Forsomefabricswovenwithpoorqualitycottonyarn,properenzymewashingprocesscanbecarriedouttoreducethehairandfluffoftheyarnwithoutdamagingthefabric,therebymakingupforthelackofcottonyarnqualitytosomeextent;inaword,,Theenzymewashingprocessisnotonlysimple,butalsomoderateincost.Withbleaching,brightening,andsoftfinishing,itcanwashoutdifferentstylesanddifferentgradesoffabrics.