Yuav ua li cas kho cov txheej txheem luam ntawv flexo nrog cov ntawv thawv sib txawv
Cov ntawv sau feem ntau siv rau cov ntawv corrugated muaj xws li: ntawv thawv ntawv, ntawv liner, ntawv kraft, ntawv tshuaj yej, ntawv dawb thiab ntawv dawb ib sab. Vim muaj qhov sib txawv ntawm cov ntaub ntawv ua ntawv thiab cov txheej txheem ua ntawv ntawm txhua hom ntawv sau, cov cim qhia lub cev thiab tshuaj lom neeg, cov yam ntxwv ntawm qhov chaw thiab kev luam tawm ntawm cov ntawv sau saum toj no txawv heev. Cov hauv qab no yuav tham txog cov teeb meem uas cov khoom ntawv saum toj no ua rau cov txheej txheem luam ntawv corrugated cardboard pib.
1. Teeb meem tshwm sim los ntawm daim ntawv qis-gram lub thawv chocolate
Thaum siv daim ntawv qis-gram ua daim ntawv saum npoo ntawm cov ntawv corrugated, cov cim corrugated yuav tshwm sim rau ntawm qhov chaw ntawm cov ntawv corrugated. Nws yooj yim ua rau muaj flute thiab cov ntsiab lus duab xav tau tsis tuaj yeem luam tawm ntawm qhov concave qis ntawm lub flute. Vim tias qhov tsis sib xws ntawm cov ntawv corrugated tshwm sim los ntawm lub flute, lub phaj resin yooj ywm nrog kev ua kom zoo dua yuav tsum tau siv ua lub phaj luam ntawv kom kov yeej qhov tsis sib xws ntawm kev luam ntawv. Pom tseeb thiab pom qhov tsis zoo. Tshwj xeeb tshaj yog rau A-hom corrugated cardboard tsim los ntawm daim ntawv qis-grammage, lub zog compressive ntawm cov ntawv corrugated yuav raug puas tsuaj loj heev tom qab luam tawm los ntawm lub tshuab luam ntawv. Muaj kev puas tsuaj loj.cov hniav nyiaj hniav kublub thawv
Yog tias qhov chaw ntawm daim ntawv corrugated txawv ntau dhau, nws yooj yim ua rau daim ntawv corrugated warping tsim los ntawm kab ntawv corrugated. Daim ntawv warped yuav ua rau overprinting tsis raug thiab tawm ntawm-ntawm-gauge luam ntawv qhov rau kev luam ntawv, yog li daim ntawv warped yuav tsum tau flattened ua ntej luam ntawv. Yog tias daim ntawv corrugated tsis sib npaug raug yuam luam tawm, nws yooj yim ua rau tsis sib xws. Nws tseem yuav ua rau qhov tuab ntawm daim ntawv corrugated txo qis.
2. Teeb meem tshwm sim los ntawm qhov sib txawv ntawm qhov chaw roughness ntawm cov ntawv hauv paus ntawv-khoom plig-ntim
Thaum luam ntawv rau ntawm daim ntawv uas muaj qhov chaw ntxhib thiab cov qauv xoob, cov kua mem muaj permeability siab thiab cov kua mem luam ntawv qhuav sai, thaum luam ntawv rau ntawm daim ntawv uas muaj qhov chaw du thiab muaj fiber ntau thiab tawv, qhov ceev ntawm cov kua mem qhuav qeeb. Yog li ntawd, ntawm daim ntawv ntxhib dua, yuav tsum nce qhov ntau ntawm cov kua mem siv, thiab ntawm daim ntawv du, yuav tsum txo qhov ntau ntawm cov kua mem siv. Cov kua mem luam ntawv rau ntawm daim ntawv tsis loj qhuav sai, thaum cov kua mem luam ntawv rau ntawm daim ntawv loj qhuav qeeb, tab sis qhov rov ua dua ntawm cov qauv luam ntawv zoo. Piv txwv li, qhov nqus cov kua mem ntawm daim ntawv dawb coated qis dua li ntawm daim ntawv boxboard thiab daim ntawv teaboard, thiab cov kua mem qhuav qeeb, thiab nws qhov du siab dua li ntawm daim ntawv boxboard, daim ntawv liner, thiab daim ntawv teaboard. Yog li ntawd, qhov kev daws teeb meem ntawm cov dots zoo luam tawm rau ntawm nws Tus nqi kuj siab, thiab qhov rov ua dua ntawm nws cov qauv zoo dua li ntawm daim ntawv liner, daim ntawv cardboard, thiab daim ntawv teaboard.
3. Teeb meem tshwm sim los ntawm qhov sib txawv ntawm kev nqus cov ntawv hauv paus lub thawv hnub tim
Vim muaj qhov sib txawv ntawm cov ntaub ntawv raw ua ntawv thiab qhov loj ntawm daim ntawv, calendering, thiab txheej txheej, lub zog nqus dej sib txawv. Piv txwv li, thaum luam ntawv ntau dhau ntawm daim ntawv dawb ib sab thiab daim npav kraft, qhov ceev ziab ntawm cov kua mem qeeb vim qhov kev ua tau zoo nqus dej tsawg. Qis dua, yog li qhov concentration ntawm cov kua mem dhau los yuav tsum txo qis, thiab qhov viscosity ntawm cov kua mem overprint tom ntej yuav tsum nce ntxiv. Luam cov kab, cov cim, thiab cov qauv me me hauv thawj xim, thiab luam tag nrho cov phaj hauv cov xim kawg, uas tuaj yeem txhim kho qhov cuam tshuam ntawm kev luam ntawv ntau dhau. Tsis tas li ntawd, luam cov xim tsaus nyob rau pem hauv ntej thiab cov xim kaj nyob rau sab nraub qaum. Nws tuaj yeem npog qhov yuam kev overprint, vim tias cov xim tsaus muaj kev npog zoo, uas yog qhov zoo rau tus qauv overprint, thaum cov xim kaj muaj kev npog tsis zoo, thiab nws tsis yooj yim rau kev soj ntsuam txawm tias muaj qhov tshwm sim khiav tawm hauv kev luam ntawv tom qab. lub thawv hnub tim
Cov xwm txheej sib txawv ntawm qhov loj ntawm daim ntawv tseem yuav cuam tshuam rau kev nqus cov kua mem. Daim ntawv uas muaj qhov loj me me nqus tau cov kua mem ntau dua, thiab daim ntawv uas muaj qhov loj dua nqus cov kua mem tsawg dua. Yog li ntawd, qhov sib txawv ntawm cov menyuam roj mem yuav tsum tau kho raws li qhov xwm txheej ntawm daim ntawv, uas yog, qhov sib txawv ntawm cov menyuam roj mem yuav tsum tau txo kom tswj tau lub phaj luam ntawv. Nws tuaj yeem pom tias thaum daim ntawv pib nkag mus rau hauv lub Hoobkas, qhov kev ua tau zoo ntawm daim ntawv pib yuav tsum tau sim, thiab ib qho parameter ntawm qhov kev ua tau zoo ntawm daim ntawv pib yuav tsum tau muab rau lub tshuab luam ntawv thiab lub tshuab faib kua mem, kom lawv tuaj yeem faib cov kua mem thiab kho cov khoom siv. Thiab raws li qhov xwm txheej nqus ntawm cov ntawv pib sib txawv, kho qhov viscosity thiab PH tus nqi ntawm cov kua mem.
Lub sijhawm tshaj tawm: Lub Peb Hlis-28-2023
