Cov Kua Nplaum Muaj Zog Nplua Nuj Muag Kub

Kev piav qhia txog khoom

Kev siv viscose shellac

Ua ntej, siv los ua cov nplaum yoov siv, cov phaj kab nplaum, thiab lwm yam. Cov nplaum sib txawv siv tau los tsim cov ntawv nplaum, cov ntawv nplaum, cov nplaum yoov siv, lub tsev kab laum, thiab lwm yam. Qhov tseem ceeb rau qhov teeb meem yog: cov khoom sib txawv yuav tsum siv cov viscose shellac sib txawv, tsis tuaj yeem siv tau thoob ntiaj teb. Cov txheej txheem tsim khoom lag luam ntawm cov khoom no tau loj hlob thiab tsim cov saw hlau kev lag luam tiav.
Ob, thov ncaj qha rau ntawm lub cev ntoo. Qhov teeb meem feem ntau nrog kev thov ncaj qha ntawm shellac rau ntawm cov ntoo yog tias nws nyuaj heev rau thov. Txhawm rau daws qhov teeb meem no, cov chaw tsim khoom sib txawv tau sim ntau txoj hauv kev, thiab tsis muaj kev daws teeb meem pheej yig tau ntau xyoo. Kev daws teeb meem feem ntau yog kho cov mis viscose shellac kom ua kua. Txawm li cas los xij, kev ua haujlwm ntawm cov khoom raug txo qis heev, thiab nws tsis tuaj yeem hu ua viscose shellac. ""Injectable shellac" daws cov teeb meem saum toj no.
Qhov thib peb, raws li cov duab sib txawv ntawm cov kab tsuag sib txawv, ua los ntawm ntau xim sib txawv los nyiam cov kab tsuag. Cov nplaum daj nplaum yog siv rau ntawm lub rooj tsavxwm dawb los ua lub rooj tsavxwm daj, thiab cov nplaum xiav yog siv rau ntawm lub rooj tsavxwm dawb los ua lub rooj tsavxwm xiav, uas yog siv los rhuav tshem cov kab tsuag xws li thrips. Cov nplaum dawb milky viscose yog siv rau ntawm lub rooj tsavxwm dawb, uas yog siv los ua lub rooj tsavxwm dawb armyworm, uas yog siv los rhuav tshem cov kab tsuag xws li pob zeb diamond-moth.

Kev faib tawm ntawm viscose shellac

Viscose shellac Raws li qhov chaw siv sib txawv, viscose shellac tuaj yeem muab faib ua ob hom hauv qab no:
(1) Cov nplaum nplaum sab hauv tsev uas tsim nyog rau kev siv hauv qhov chaw nyob, xws li: kua nplaum yoov, kua nplaum kab laum, thiab lwm yam. Nws yog tus cwj pwm los ntawm kev nplaum qis dua li hom teb, thev naus laus zis yooj yim tsim khoom thiab cov qauv yooj yim.
(2) Cov nplaum hom teb siv rau hauv qab ntuj tsim los tua cov kab tsuag, xws li: haha ​​kua nplaum, rab phom nplaum shellac, txhaj tshuaj nplaum shellac. Nws cov yam ntxwv yog: muaj zog nplaum, tiv thaiv kev laus, cov txheej txheem tsim khoom nyuaj, qhov yuav tsum tau ua kom raug.

Raws li cov qauv sib txawv, nws muab faib ua cov hom hauv qab no:

(1) Kev tiv thaiv ib puag ncig kub yaj siab rhiab heev cov khoom lag luam ntawm hom no yog qhov nyuaj rau npaj thiab tus nqi siab.
(2) Cov khoom siv rosin uas rhiab siab ib txwm muaj ntawm hom no feem ntau yog siv rau hauv kev npaj cov viscose shellac sab hauv tsev. Feem ntau cov chaw tsim khoom hauv tsev siv cov nplaum shellac no. (3) Lwm hom viscose shellac uas rhiab siab tsis sib xws hauv qhov zoo thiab qhov phem, thiab nws nyuaj rau qhov txawv ntawm qhov tseeb thiab cuav.

Raws li qhov tsos ntawm cov nplaum shellac, nws tuaj yeem muab faib ua:

(1) Cov kua nplaum no tsis muaj xim los yog dawb zoo li mis nyuj, thiab nws muaj cov kua nplaum zoo tshaj plaws. Nws tsis ua rau ib puag ncig puas tsuaj thiab siv tau rau hauv thaj chaw uas muaj av noo ntau.
(2) Cov kua nplaum daj daj, ib feem loj ntawm cov kua nplaum no yog rosin nplaum, ib feem me me yog cov khoom sib xyaw polybutene qis, thiab qee qhov siv polypropylene, polybutene sib xyaw rau hauv viscose shellac.
(3) Kua nplaum dub, hom kua nplaum no yog cov kua nplaum uas rhiab heev rau siab, uas muaj ntxhiab tsw tsis zoo thiab feem ntau yog siv rau kev kho nas.

Txoj kev tshem tawm:

1. Thaum nyuam qhuav nplaum, nws tuaj yeem muab tso rau hauv dej sov thiab tom qab ntawd ntxuav nrog xab npum ntxuav tais diav.
2. Yog tias cov kua nplaum tau lo rau ntawm tes, koj tuaj yeem siv roj ua noj los ntxuav thiab ua kom mos, ntxuav cov kua nplaum, thiab tom qab ntawd ntxuav cov roj tawm ntawm tes nrog xab npum.
3. koj tuaj yeem txhuam nrog cawv dawb, thiab tom qab ntawd tsau rau hauv dej sov kom tshem tawm cov nplaum. Cov ntaub ntawv txuas ntxiv Ib hom ntawv nplaum siv los ntes cov yoov. Thaum siv, cov ntawv nplaum ua los ntawm cov yoov raug tsa los ntawm ntug ntawm daim ntawv los ntawm tes, thiab muab tso rau hauv qhov chaw uas yoov feem ntau ya lossis ntom, tsuav yog cov yoov kov lossis poob rau ntawm daim ntawv, nws yuav raug lo rau ruaj khov. Yog tias dai ze ntawm lub teeb, nws kuj tuaj yeem lo cov yoov thiab lwm yam kab ya. Kev npaj daim kab xev ntawv: Muab cov roj Arabic rau hauv lub thawv, ntxiv 1/3 ntawm cov dej hauv cov mis, kom nws yaj tag, tom qab ntawd txiav daim ntawv kraft ua daim kab xev, txhuam cov kua nplaum rau ntawm daim ntawv kraft a thiab B, qhuav. Ua cov kua nplaum ya: muab rosin rau hauv lub lauj kaub porcelain, ntxiv 2/3 dej seem, cua sov, tos kom rosin yaj, thiab tom qab ntawd cua sov cov dej evaporation, thaum cov dej hauv lub lauj kaub qhuav sai, sai sai ntxiv cov roj paulowne thiab roj castor, do zoo, thiab tom qab ntawd ntxiv cov zib ntab kom sib npaug, txuas ntxiv cua sov cov dej ntau dhau.