Lub hnab ntim tshuaj yej hnab ntim

Raws li ib qho ntawm peb lub ntiaj teb cov dej haus tsis muaj cawv, tshuaj yej tau nyiam los ntawm tib neeg rau nws cov khoom noj muaj txiaj ntsig zoo, kev noj qab haus huv, thiab kev noj qab haus huv. Txhawm rau kom muaj txiaj ntsig zoo khaws cov duab, xim, aroma, thiab saj ntawm tshuaj yej, thiab ua tiav kev khaws cia thiab kev thauj mus los ntev, kev ntim tshuaj yej kuj tau dhau los ua ntau yam kev hloov kho thiab kev tsim kho tshiab. Txij li thaum nws pib, bagged tshuaj yej tau nrov nyob rau hauv European thiab American lub teb chaws vim nws muaj ntau yam zoo xws li yooj yim thiab huv si.

Bagged tshuaj yej yog ib hom tshuaj yej uas tau ntim rau hauv cov hnab lim nyias thiab muab tso ua ke nrog lub hnab ntawv hauv cov tshuaj yej teeb. Lub hom phiaj tseem ceeb ntawm kev ntim nrog cov hnab lim ntawv yog txhawm rau txhim kho tus nqi leaching thiab tseem siv cov tshuaj yej hmoov hauv lub Hoobkas tshuaj yej. Vim nws qhov zoo xws li ceev brewing, huv si, standardized dosage, yooj yim mixing, yooj yim tshem tawm residue, thiab portable, bagged tshuaj yej yog heev nyiam nyob rau hauv lub thoob ntiaj teb kev ua lag luam kom tau raws li ceev ceev txoj kev ua neej xav tau kev pab ntawm cov neeg niaj hnub. Tshuaj yej raw cov ntaub ntawv, cov ntaub ntawv ntim, thiab tshuaj yej hnab ntim tshuab yog peb lub ntsiab ntawm cov tshuaj yej hnab ntim khoom, thiab cov ntaub ntawv ntim khoom yog cov txheej txheem rau kev tsim cov tshuaj yej hnab.

Hom thiab cov kev xav tau ntawm cov khoom ntim rau cov hnab tshuaj yej

Cov khoom ntim rau cov hnab ntim tshuaj yej muaj xws li cov khoom ntim sab hauv xws litshuaj yej lim ntawv, cov ntaub ntawv ntim khoom xws li cov hnab ntim sab nraud, cov thawv ntim khoom, thiab cov hnab yas thiab cov iav pob tshab, cov tshuaj yej lim ntawv yog cov khoom tseem ceeb tshaj plaws. Tsis tas li ntawd, thaum lub sij hawm tag nrho cov txheej txheem ntim tshuaj yej hnab, tshuaj yej hnabpaj rwb xovrau xov lifting, daim ntawv lo, nplaum xov lifting, thiab acetate polyester nplaum rau cov ntawv tseem yuav tsum tau. Tshuaj yej feem ntau muaj cov khoom xws li ascorbic acid, tannic acid, polyphenolic compounds, catechins, rog, thiab carotenoids. Cov khoom xyaw no muaj kev cuam tshuam rau kev puas tsuaj vim ya raws, oxygen, kub, lub teeb, thiab ib puag ncig tsw. Yog li ntawd, cov ntaub ntawv ntim khoom siv rau cov hnab ntim tshuaj yej yuav tsum tau ua raws li qhov yuav tsum tau muaj ntawm cov dej noo tsis kam, oxygen tsis kam, kub tsis kam, tiv thaiv lub teeb, thiab roj thaiv kom txo lossis tiv thaiv kev cuam tshuam ntawm cov khoom saum toj no.

1. Cov khoom ntim sab hauv rau cov hnab tshuaj yej - tshuaj yej lim ntawv

Tshuaj yej hnab lim ntawv, tseem hu ua tshuaj yej hnab ntim ntawv, yog ib daim ntawv uas tsis tshua muaj nyias nyias nrog cov qauv, huv si, xoob thiab ntxeem tau, tsis tshua muaj nruj, muaj zog nqus, thiab lub zog ntub dej. Nws yog tsuas yog siv rau kev tsim khoom thiab ntim khoom ntawm "tea hnab" hauv cov tshuab ntim tshuaj yej tsis siv neeg. Nws yog lub npe hu ua tom qab nws lub hom phiaj, thiab nws cov kev ua tau zoo thiab kev ua tau zoo ua lub luag haujlwm tseem ceeb hauv qhov zoo ntawm cov hnab tshuaj yej tiav.

1.2 Cov kev cai yooj yim rau tshuaj yej lim ntawv

Raws li cov khoom ntim rau tshuaj yej hnab, tshuaj yej lim ntawv yuav tsum tsis tsuas yog xyuas kom meej tias cov khoom xyaw zoo ntawm cov tshuaj yej tuaj yeem sai sai rau hauv cov tshuaj yej kua zaub thaum lub sij hawm brewing, tab sis kuj tiv thaiv cov tshuaj yej hmoov nyob rau hauv lub hnab los ntawm seeping rau hauv tshuaj yej kua zaub. Cov kev cai tshwj xeeb rau nws cov yam ntxwv yog raws li hauv qab no.
(l) Muaj lub zog txhua yam txaus (lub zog tensile siab) hloov mus rau lub zog qhuav thiab elasticity ntawm cov tshuab ntim tsis siv neeg rau cov hnab tshuaj yej;
(2) Muaj peev xwm tiv taus immersion hauv dej npau npau tsis tawg;
(3) Bagged tshuaj yej muaj cov yam ntxwv ntawm kev ntxeem tau, moist, thiab permeable. Tom qab brewing, nws tuaj yeem ntub dej sai thiab cov ntsiab lus soluble ntawm cov tshuaj yej tuaj yeem leached sai sai;
(4) Cov fibers yuav tsum zoo, sib xws thiab zoo ib yam.
Lub thickness ntawm cov ntawv lim feem ntau yog 0.003-0.009in (lin = 0.0254m)
Qhov pore loj ntawm daim ntawv lim yuav tsum nyob nruab nrab ntawm 20-200 μ m, thiab qhov ntom thiab porosity ntawm daim ntawv lim yuav tsum sib npaug.
(5) Tsis muaj ntxhiab tsw, tsis muaj ntxhiab, tsis muaj tshuaj lom, ua raws li kev nyiam huv;
(6) Lub teeb yuag, nrog daim ntawv dawb.

1.3 Hom Tshuaj yej Lim Ntawv

Cov khoom ntim rau cov hnab tshuaj yej hauv ntiaj teb niaj hnub no tau muab faib ua ob hom:tshav kub kaw tshuaj yej lim ntawvthiab tsis yog cua sov ntim tshuaj yej lim ntawv, nyob ntawm seb lawv puas yuav tsum tau rhuab thiab sib koom ua ke thaum lub hnab ntim khoom. Feem ntau siv tam sim no yog cov tshuaj yej kub ntim cov ntawv lim ntawv.

Thaum tshav kub kub sealed tshuaj yej lim ntawv yog ib hom tshuaj yej lim ntawv uas haum rau ntim nyob rau hauv lub tshav kub ntim tshuaj yej tsis siv neeg ntim tshuab. Nws yuav tsum muaj li ntawm 30% -50% ntev fibers thiab 25% -60% tshav kub kaw fibers. Kev ua haujlwm ntawm cov fibers ntev yog muab cov tshuab ua kom muaj zog txaus los lim ntawv. Thaum tshav kub kub sealed fibers yog tov nrog lwm cov fibers thaum lub sij hawm tsim cov ntawv lim, tso cai rau ob txheej ntawm cov ntawv lim kom sib koom ua ke thaum rhuab thiab pressurized los ntawm lub tshuab ntim cov cua sov sealing rollers, yog li tsim ib lub hnab ntim cua sov. Hom fiber ntau nrog cov khoom cua sov sealing tuaj yeem tsim los ntawm copolymer ntawm polyvinyl acetate thiab polyvinyl chloride, los yog los ntawm polypropylene, polyethylene, hluavtaws silk, thiab lawv cov khoom sib xyaw. Qee cov tuam txhab lag luam kuj ua cov ntawv lim dej no rau hauv cov txheej txheem ob txheej, nrog rau ib txheej uas muaj tag nrho cov cua sov kaw sib xyaw fibers thiab lwm txheej uas tsis muaj cua sov kaw. Qhov kom zoo dua ntawm txoj kev no yog tias nws tuaj yeem tiv thaiv cov cua sov kaw cov fibers los ntawm adhering rau lub sealing rollers ntawm lub tshuab tom qab melted los ntawm tshav kub. Daim ntawv thickness yog txiav txim raws li tus qauv ntawm 17g / m2.

Nonheat sealed filter paper yog cov tshuaj yej lim ntawv uas haum rau ntim rau hauv cov tshuaj yej tsis siv tshuaj yej ntim tshuab. Cov ntawv tsis muaj cua sov ntim tshuaj yej lim ntawv yuav tsum muaj 30% -50% ntev fibers, xws li Manila hemp, kom muaj zog txhua yam txaus, thaum tus so yog tsim los ntawm luv luv fibers thiab txog 5% resin. Lub luag haujlwm ntawm resin yog los txhim kho lub peev xwm ntawm cov ntawv lim kom tiv taus cov dej kub npau npau. Nws cov tuab yog feem ntau txiav txim siab raws li tus qauv hnyav ntawm 12 grams ib square meter. Cov kws tshawb fawb los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb Hav Zoov ntawm Shizuoka Agricultural University hauv Nyij Pooj tau siv Suav ua hemp bast fiber soaked hauv dej ua raw khoom, thiab kawm txog cov khoom ntawm hemp bast fiber ntau uas ua los ntawm peb txoj kev ua noj sib txawv: alkaline alkali (AQ) pulping, sulfate pulping, thiab atmospheric alkaline pulping. Nws xav tias atmospheric alkaline pulping ntawm hemp bast fiber tuaj yeem hloov Manila hemp pulp hauv kev tsim cov tshuaj yej lim ntawv.

Tsis tas li ntawd, muaj ob hom tshuaj yej lim ntawv: bleached thiab unbleached. Yav dhau los, chloride bleaching tshuab tau siv, tab sis tam sim no, oxygen bleaching los yog bleached pulp feem ntau yog siv los tsim tshuaj yej lim ntawv.

Nyob rau hauv Suav teb, mulberry bark fibers feem ntau yog ua los ntawm siab dawb lub xeev pulping thiab ces ua tiav nrog resin. Nyob rau hauv xyoo tas los no, Suav cov kws tshawb fawb tau tshawb nrhiav ntau txoj hauv kev pulping raws li qhov sib txawv ntawm kev txiav, o, thiab cov txiaj ntsig zoo ntawm cov fibers thaum lub sij hawm pulping, thiab pom tias txoj kev pulping zoo tshaj plaws rau kev ua tshuaj yej hnab ntawv pulp yog "ntev fiber ntau dawb pulping". Txoj kev ntaus pob no tsuas yog tso siab rau qhov thinning, txiav kom tsim nyog, thiab sim ua kom muaj qhov ntev ntawm cov fibers yam tsis tas yuav muaj cov fiber ntau zoo. Cov yam ntxwv ntawm daim ntawv yog zoo nqus thiab siab breathability. Vim lub fibers ntev, lub uniformity ntawm daim ntawv yog tsis zoo, nto ntawm daim ntawv yog tsis heev du, lub opacity yog siab, nws muaj zoo tsim kua muag zog thiab durability, qhov loj stability ntawm daim ntawv yog zoo, thiab lub deformation yog zoo. me me.