Cov hnab yas ntim tau ua los ntawm cov khoom siv ua dua tshiab feem ntau muaj qee cov yam ntxwv uas txawv ntawm nkauj xwb. Cov kev sib txawv no feem ntau yog los ntawm cov khoom siv ua dua tshiab, kev siv tshuab thiab hom kev sib ntxiv. Cov hauv qab no yog muaj kev sib txawv ntawm kev sib txawv thiab kev sib txawv ntawm kev sib txawv:
1. Cov xim thiab pob tshab
Greyish / daj laus:
Siv cov plastics (tshwj xeeb yog siv ntau lub sijhawm) feem ntau tsis tuaj yeem ua tiav lub xeev dawb lossis pob tshab lub xeev nkauj xwb, thiab yuav tshwm sim greyish dawb, teeb daj lossis lub teeb xim av. Qhov no yog vim tias cov khoom lag luam yas lossis cov khoom lag luam ntawm cov xim sib txawv tau sib xyaw rau hauv cov txheej txheem rov ua dua tshiab.
Txo cov pob tshab:
Lub pob tshab ntawm cov hnab me los yog PE hnab yog feem ntau tsis zoo li tias ntawm cov khoom nkauj nkauj xwb, thiab tuaj yeem tshwm sim post (zoo li cov nyhuv frombgy (zoo li rau cov khoom siv frosted), tshwj xeeb rau cov khoom siv rov qab muaj impurities.
Xim me ntsis lossis kev sib cog lus:
Cov khoom siv tsis muaj txiaj ntsig zoo yuav muaj kev hloov maj mam dub / tsaus nti (impurities uas tsis siv tag nrho) lossis pom cov xim tsis sib xws) lossis pom cov xim tsis sib xws) lossis pom cov xim tsis xwm yeem.
2. Nto Kev ntxhib los mos
Nce roughness:
Qhov saum npoo ntawm cov qauv plastics yuav yog kev ntxhib los yog cov qauv ua kom zoo nkauj, tsis yog ib qho zoo li cov nkauj xwb, thiab ua qoob loo me ntsis thaum kov lub hnab).
Glusy Gloss: Siv cov plastics feem ntau muaj cov ntsej muag qis dua, pom tias muaj kev sib daj sib deev, thaum lub sij hawm nkauj xwb (xws li cov nplaim hluav taws xob.
3. Cov Ntawv Tshaj Tawm
Qes xim tsawg: thaum luam ntawv ncaj qha rau ntawm lub hnab ntim khoom, cov xim xim yuav tshwm sim tsaus ntuj lossis lub teeb ci ntsa iab (tshwj xeeb yog kev cuam tshuam ntawm cov xim hauv paus.
Kev luam tawm luam tawm: Cov chaw tsis sib xws yuav ua rau cov qauv ntawm cov ntawv sau lossis cov ntaub ntawv tshwj xeeb ntawm cov khoom siv high-xaus siv tau tuaj yeem zam qhov no).
4. Cov Qauv Txheej Txheem
Unreken thickness: cov hnab ntim khoom tsis muaj txiaj ntsig yuav muaj cov qauv tsis sib xws, thiab cov qauv huab cua zoo li pom thaum pom kev.
Elasticity Txawv: Siv lub hnab ntim yas muaj zog kom muaj zog thaum ncav tau thiab muaj kev sib cav sib ceg (nkauj xwb yog hloov tau).
5. Logos thiab ntawv pov thawj
Kev ua dua lub logo: cov khoom siv hluav taws xob siv hluav taws xob feem ntau muaj cov ntaub ntawv ua dua tshiab (xws li "
Kev tiv thaiv kev tiv thaiv ib puag ncig:
Nws tuaj yeem luam tawm nrog cov ntawv nyeem npaj siab xws li "ua los ntawm cov khoom siv rov ua dua" thiab "eco phooj ywg".
6. High-kawg ua cov khoom siv rov ua dua:
Cov khoom siv ua tau zoo dua (xws li cov khoom noj-qib-rpet) uas tau xau thiab ntxiv nrog cov tshuaj ntxuav dawb zoo ib yam li kev sim.
7. Txheeb xyuas sai sai?
Lub Teeb Tshaj Tawm Kev Xeem: Saib lub teeb pom yog tias muaj cov xim tsis xwm yeem lossis huab
Rhaub soj ntsuam: lub kua muag qhib ntug ntawm lub hnab, cov ntoo khaub lig-seem ntawm cov khoom siv ua rov qab yog feem ntau yog cua
Cov Cim Npe: Cov khoom siv ua tau tsawg yuav muaj qhov ntxhiab tsw me me ntawm cov yas ua kom tsis taus (tsis yog)
Yog tias nws yog ib lub hnab ntim khoom siv hauv kev ua raws li, cov tsos sib txawv tsis cuam tshuam rau qhov ua tau zoo.
