ntawv A
Daim ntawv yog ib yam tseem ceeb uas cov neeg ua haujlwm yuav tsum tau ua tib zoo saib xyuas, thiab nws txiav txim siab ntau yam ntawm cov khoom luam tawm.
1, ntawm cov lus sau ntawm daim ntawv
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muab txhua phau ntawv nthuav tawm, cov duab thaij duab, cov duab kos duab, cov tsiaj ntawv, lub thawv ntawv, daim ntawv qhia hnub, txhua yam ntawm PVC, cov khoom ntawv, ntawv sau, Cov menyuam phau ntawv, cov ntawv nplaum, txhua yam ntawv tshwj xeeb xim xim luam ntawv, daim card cardand li.
Yog xav paub ntxiv, thov tuaj xyuas
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Ntawv yog ib hom khoom siv ntxiv los ntawm cov nroj tsuag fibers mus rau fillers, roj hmab txuas, pigments, thiab lwm yam khoom.
Cov ntaub ntawv raw li cov ntawv sau yog cov quav cab, xyoob ntoo, paj rwb, thiab muaj pov tseg. Nyob ntawm cov ntaub ntawv raw, qhov xwm txheej ntawm cov ntawv ua kuj yuav txawv.
Fillers yog cov ntaub ntawv siv los ua kom cov ntawv yooj yim, kom tsis txhob muaj daim ntawv nplaum thiab lub ntsej muag, thiab ua rau daim ntawv xeb thiab txawm tias, xws li cov ntawv xov xwm luam ntawv, kaolin rau qib siab, thiab barium sulfate. Kev siv cov ntxhuav yuav tsum tsim nyog, feem ntau yog li ntawm 20% ntawm daim ntawv, ntau dhau lawm yuav txo qhov kev ua haujlwm thiab ua kom yooj yim ntawm cov xov, thiab yuav hla tus xaj kua mis, uas ua rau hmoov tawm thaum luam ntawv.
Cov khoom siv roj hmab yog siv los ua cov pores me hauv daim ntawv los txhim kho cov dej tsis zoo ntawm daim ntawv, thiab nws tseem tuaj yeem txhim kho lub zog thiab lub zog ntawm daim ntawv thiab tiv thaiv daim ntawv los ntawm kev haus dej. Feem ntau yog siv cov roj hmab txuas rau rosin, alum thiab starch.
Cov xim siv yog siv los txhim kho cov xim purity ntawm daim ntawv, thiab feem ntau lawv siv cov pigments inorganic los yog organic dyes.