Carbonless ntawv puas noj qab haus huv?

Carbonless luam ntawvyog siv los ua lag luam sau ntawv uas yuav tsum muaj ib lossis ntau daim ntawv theej, xws li cov ntawv xa nyiaj thiab cov ntawv txais nyiaj.Cov ntawv luam feem ntau yog ntawv ntawm cov xim sib txawv.

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Cov neeg feem coob xav li ntawdcarbonless luam ntawvyuav cuam tshuam rau tib neeg kev noj qab haus huv.PCB (polychlorinated biphenyl) nyob rau hauv carbonless ntawv raug txwv nyob rau hauv 1970s vim muaj kev txhawj xeeb txog kev noj qab haus huv.carbonless ntawvtsim tom qab xyoo 2000 yuav tsis ua rau muaj kev cuam tshuam tsis zoo rau tib neeg lub cev.Vim tias txoj kev loj hlob sai ntawm kev lag luam, cov ntawv carbonless uas tsim muaj ntau tus phooj ywg zoo thiab noj qab haus huv.
Feem ntau, cov ntawv tsis zoo carbonless muaj ib lub lat ntawm BPA, BPA tuaj yeem ua rau koj txoj kev noj qab haus huv.Tam sim no, cov ntawv zoo carbonless yog BPA dawb. Nrog rau cov khoom pheej yig inkjet thiab laser printers, kev siv cov ntawv carbonless multiparts tau poob rau hauv kev lag luam vim nws yooj yim dua los luam cov ntaub ntawv.

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Peb lub Hoobkasmuaj ntau xyoo ntawm kev paub hauv carbonless ntawv ntau lawm.Thiab cov ntawv carbonless tsis muaj BPA thiab PCB.Our Hoobkas ib txwm ua raws li kev tiv thaiv ib puag ncig thiab kev noj qab haus huv.


Post lub sij hawm: Mar-27-2023