Hauv cov saw hlau ntawm cov khob ntawv pov tseg, cov txheej txheem luam ntawv ncaj qha txiav txim siab qhov tsos thiab kev nyab xeeb ntawm cov khoom. Raws li cov khoom txhawb nqa tseem ceeb ntawm lub khob khob tshuab, kev xaiv cov ntaub ntawv luam ntawv yuav tsum coj mus rau hauv tus account kev nyab xeeb ntawm kev sib cuag zaub mov, txheej txheem kev sib raug zoo thiab kev phooj ywg ib puag ncig. Hauv daim ntawv no, cov yam ntxwv thiab kev siv thev naus laus zis ntawm cov ntaub ntawv khob luam ntawv tau txheeb xyuas los ntawm peb qhov tseem ceeb: substrate, txheej thiab number case.
Cov ntaub ntawv hauv paus: Lub cev - tshuaj muaj zog ntawm cov nroj tsuag fiber ntau substrate
daim ntawv khob luam ntawv yog ua los ntawm cov tshuaj ntoo pulp, feem ntau yog los ntawm cov nroj tsuag fibers (xws li cork thiab hardwood) pulped, defibrillated, refined thiab sifted. Raws li Daim Ntawv Sib Txuas Khoom Noj thiab Cardboard Khoom thiab Cov Qauv Khoom (GB4806.8), cov cim tseem ceeb hauv qab no yuav tsum tau ua raws li cov ntawv hauv qab:
- Qhov hnyav thiab qhov tawv nqaij: Lub hauv paus hnyav feem ntau yog nyob nruab nrab ntawm 140 thiab 350 350 g / m2, thiab qhov tawv nqaij yuav tsum tau ua kom lub khob zoo li qub nyob rau hauv qhov hnyav ntawm cov kua thiab nws cov qauv. Piv txwv li, lub khob ntawv 8-ounce yuav tsum muaj zog txaus los txhawb nws tus kheej qhov hnyav thiab lub siab ntawm cov kua uas nws muaj.
- Brightness thiab kev kho saum npoo: Brightness yuav tsum tau raws li kev luam ntawv kom pom tseeb, tab sis txwv tsis pub siv cov tshuaj fluorescent whitening. Kev kho mob Corona ntawm qhov chaw, qhov nro ntawm 29 mus rau 31 mN / m txog 40 mN / m, txhim khu cov adhesion ntawm number case.
- Kev nkag mus thiab qhov loj me: Cov txheej txheem sizing tswj cov dej permeability thiab tiv thaiv cov kua los ntawm softening lub khob. Cov iav dej txias, piv txwv li, yuav tsum tau starched los yog txheej los tiv thaiv condensation.
Functional Coatings: dual tiv thaiv mechanism ntawm PE zaj duab xis
Lub hauv paus ntawv yuav tsum dhau los ntawm polyethylene (PE) zaj duab xis txheej txheej txheej txheej txheej los tsim cov tub ntxhais tsis muaj dej thiab tiv thaiv- txheej txheej txheej txheej. Nyob ntawm daim ntawv thov, txheej txheej tuaj yeem muab faib ua ib zaug -sab PE thiab ob - sab PE:
- Ib leeg -Sided PE-Laminated Paper: PE tsuas yog siv rau sab hauv phab ntsa thiab haum rau cov khob haus dej kub. Polyethylene yuav tsum muaj cua sov- tiv taus (suav nrog qhov kub siab tshaj 100 degree) thiab ua raws li Txoj Cai Kev Nyab Xeeb rau Polyethylene Moulding Cov Khoom Noj Khoom Noj ((GB/T). Starbucks khob haus dej kub, piv txwv li, siv cov tshuaj PE tshwj xeeb los tiv thaiv cov khoom tsis zoo los ntawm kev tawm ntawm qhov kub thiab txias.
- Muab ob npaug rau-Sided PE-Laminated Paper: PE yog haum rau sab hauv thiab sab nrauv phab ntsa thiab feem ntau siv hauv cov khob dej txias. Sab nrauv PE yuav tsum tsis tshua muaj - kub embrittlement los tiv thaiv daim ntawv softening los ntawm cov dej txias. Piv txwv li McDonald's ice cream khob, tuaj nyob rau hauv ib ob -sab PE kev tsim kho uas tuav hardness ntawm -18C.
Txheej Txheem Risk Point: Cov khob ntawv tsis zoo tuaj yeem siv PE rov ua dua tshiab, uas tso tawm phthalate plasticizers thaum ua. Lub sijhawm ntev - noj cov tshuaj no tuaj yeem cuam tshuam kev ua haujlwm ntawm endocrine. Yog li ntawd, cov tuam txhab muaj koob npe yuav tsum tau lees paub los ntawm cov koom haum xws li SGS kom ntseeg tau tias cov ntsiab lus ntawm cov hlau hnyav (xws li txhuas, cadmium) hauv PE zaj duab xis tseem qis dua 0.01 mg / kg.
Printing Inks: Ntsuas kev ruaj ntseg thiab kev ua haujlwm
Daim ntawv khob luam ntawv inks yuav tsum ua tau raws li peb qhov tseem ceeb:
- Khoom noj khoom haus- Qib Kev Nyab Xeeb: Ink yuav tsum ua raws li National Food Safety Standards for Food Contact Materials and Product Additives (GB9685). Piv txwv li, cov kuab tshuaj yuav tsum yog cov tshuaj toxicity tsawg, xws li ethanol lossis ethyl acetate, thaum cov tshuaj tsw qab hydrocarbons, xws li toluene thiab xylene, raug txwv.
Txheej txheem Compatibility:
- Kev Tswjhwm Kub Qhuav: Ink drying temperature yuav tsum tau khaws cia hauv qab ntawm cov tshuaj tiv thaiv peroxide ntawm PE zaj duab xis (feem ntau Tsawg dua lossis sib npaug li 80 degree) kom tsis txhob muaj cua sov tsis zoo. Piv txwv li, ib hom ntawv khob tshuab siv qhov kub ceev ceev - ziab kom qhuav, lub sij hawm ziab kom txo tau 3 vib nas this, ntau lawm efficiency nce 40%.
- Residual solvent limit: Cov kuab tshuaj nyob hauv tus number case yuav tsum tsis pub tshaj 0.5 mg / dm2 los tiv thaiv qhov muag tsis pom ntawm tus number case los yog cov adhesion tsis zoo rau cov npoo kaw. Ib lub tuam txhab siv roj chromatography los txo cov kuab tshuaj residue tsawg dua 0.2 mg / dm2.
Functional Requirements:
- Thermal resistance: tus number case ntawm lub khob dej kub yuav tsum tsis txhob ploj ntawm 85 degree, thaum tus number case ntawm lub khob dej txias yuav tsum ruaj khov ntawm -18 degree.
- Abrasion Resistance: Qhov sib ntxiv ntawm nano-silica particles tsub kom lub abrasion tiv thaiv cov number case txheej mus rau ntau tshaj 500 cycles (kev sib txhuam tus qauv: CS-10 log, siab 1 kg).
INTRODUCTION txheej txheem Synergy: Dynamic Matching ntawm cov khoom rau cov cuab yeej
Kev xaiv ntawm cov ntawv khob luam ntawv cov ntaub ntawv yuav tsum zoo sib xws nrog cov khoom siv:
- Printing Machine Compatibility: Piv txwv li, ib yam ntawm cov ntawv khob xovxwm siv 17 cov roj hmab chais uas disperse number case los tuav cov luam ntawv tsis tu ncua ntawm 4-rau 24-ounce khob. Txawm li cas los xij, qhov no yuav tsum tau hais tias daim ntawv nto roughness roughness (Ra) yuav tsum Tsawg dua los yog sib npaug li 1.6 microns, txwv tsis pub tej zaum yuav muaj qhov sib npaug ntawm tus number case thickness.
- Tuag txiav precision tswj: qhov kev ua yuam kev ntawm qhov seem ntawm seem yuav tsum tau tswj kom ± 0.1 hli los tiv thaiv qhov dislocation ntawm lub cev seams. Ib lub tuam txhab siv laser tuag- txiav tshuab los txo qhov yuam kev ntawm 0.5 feem pua rau 0.02 feem pua.
- Cov txheej txheem kub nias: Thaum lub khob lub cev tsim, qhov kub ntawm thermal siab yuav tsum tau hloov kho raws li qhov chaw melting ntawm PE zaj duab xis (feem ntau yog 110-130℃). Piv txwv li, lub khob khob tshuab siv cov ntsuas kub infrared los muab cov lus qhia txog qhov kub thiab txias, ua kom lub zog sib khi rau 12/15 hli (tus qauv kev lag luam Ntau dua lossis sib npaug li 8 N / 15mm).
Kev lag luam Trends: Dual Upgrades ntawm Environmental Protection thiab Function.
Nrog rau kev ua raws li "Tshaj Tsib Tsib- Xyoo Plan" rau Plastic Pollution Control, cov ntaub ntawv khob luam ntawv tau tsim nyob rau hauv ob qho kev qhia:
- Biobased coatings: Qee lub tuam txhab tab tom sim tshuaj polylactic acid (PLA) txheej txheej biodegradation ntau dua 90 feem pua. Txawm li cas los xij, kev cov nyom tseem nyob, xws li kev tiv thaiv tshav kub tsawg (txog 60 degree).
- Digital Printing Technology: UV number case digital luam ntawv tuaj yeem ua tus kheej customization yam tsis tas yuav ua phaj. Txawm li cas los xij, cov txheej txheem ntawm tus number case curing ozone emissions yuav tsum tau daws. Ib lub tuam txhab siv LED txias lub teeb kho tshuab kom txo cov ozone concentration rau 0.01 ppm (zoo hauv qab lub teb chaws tus qauv ntawm 0.1 ppm).
Xaus:
Kev xaiv cov ntawv khob ntawv luam ntawv suav nrog qhov sib npaug ntawm kev nyab xeeb, kev ua tau zoo thiab tus nqi -kev ua tau zoo. Los ntawm cov khoom ntawm lub cev ntawm cov nroj tsuag -raws li daim ntawv mus rau cov tshuaj stability ntawm polyethylene films thiab cov zaub mov - qib compatibility ntawm inks, txhua theem yuav tsum tau nruj me ntsis kev ntsuam xyuas thiab cov txheej txheem tswj. Nrog rau cov kev cai ib puag ncig nruj dua thiab hloov cov kev xav tau ntawm cov neeg siv khoom, lub neej yav tom ntej ntawm cov ntaub ntawv khob luam ntawv yuav txav mus rau hauv kev nyab xeeb dua, muaj txiaj ntsig zoo, thiab muaj kev nyab xeeb dua, muab siab dua - cov kev xaiv ntim khoom zoo rau lub ntiaj teb ceev ceev - kev lag luam cov neeg siv khoom loj hlob.