Ntau txhiab lub khob ntawv tau noj txhua hnub hauv cov khw kas fes, nrawm- cov khw noj mov, chaw ua haujlwm thiab tsev neeg uas yog ib qho ntawm lub ntiaj teb feem ntau siv cov thawv ntim khoom pov tseg. Txawm hais tias daim ntawv khob yuav zoo li yooj yim, nws cov khoom tsim muaj kev sib koom ua ke ntawm ntau cov kauj ruam, suav nrog kev ua cov khoom siv raw, luam ntawv, tuag- txiav, molding thiab curling hauv qab. Nkag siab txog qhov ua tiav kev tsim khoom ua haujlwm pab cov kws ntim khoom ua kom zoo tshaj plaws kev tswj hwm kev tsim khoom thiab ua rau cov neeg ua haujlwm muag khoom los ntsuas cov khoom lag luam zoo tshaj plaws. Daim ntawv no muab cov txheej txheem txheej txheem ntawm tag nrho cov saw hlau tsim los ntawm cov ntawv qub mus rau lub khob ntawv tiav.
I. Raw Materials: cardboard rau khob ntawv
Cov khoom siv tseem ceeb ntawm cov khob ntawv yog substrate (tseem hu ua ib qho -ib sab lossis ob sab -sided PE coated ntawv), uas yog cov khoom noj sib xyaw ua ke - qib nkauj nkauj paj ntaub ntawv thiab polyethylene (PE) zaj duab xis. PE txheej muab dej thiab roj tsis kam tso cai rau cov dej haus kom nkag mus rau hauv cov duab los qhia, ua rau lub khob tawg lossis xau.
Specifications ntawm substrate sib txawv raws li kev siv:
Txias khob: Paperboard (phab ntsa sab hauv) coated nrog ib leeg -sab PE, nrog lub hauv paus hnyav ntawm 155 thiab 210 g / m2.
Kub khob: Ob chav sided PE txheej yuav tsum tau tiv thaiv cov ntawv thiab PE txheej los ntawm kev sib cais vim qhov kub thiab txias; Qhov hnyav yog feem ntau ntawm 190g thiab nruab nrab ntawm 190 thiab 300 g / m2. Qee cov khoom siv siab- kawg siv polylactic acid (PLA) coatings es tsis txhob ntawm polyethylene los txhim kho biodegradability.
Qhov zoo ntawm lub substrate ncaj qha cuam tshuam rau cov dej tsis kam, rigidity, luam ntawv thiab molding raug ntawm lub khob, uas yog lub hauv paus ntawm tag nrho cov txheej txheem ntau lawm.
II. Txheej txheem luam ntawv
Kev tsim ntawm lub khob luam ntawv yog nqa tawm ua ntej lub hauv paus ntawv tsim. Cov txheej txheem muaj xws li web offset lossis flexo luam ntawv, qhov twg cov duab kos duab, cov ntaub ntawv noj zaub mov thiab barcodes raug siv rau sab nrauv ntawm daim duab los qhia (tsis muaj PE txheej).
Offset printing yog zoo tagnrho rau intricate designs thiab multicolored speckled prints, muab siab xim fidelity; nws yog feem ntau siv los ntawm kas fes chains thiab hwm cov dej haus hom, uas yog qhov tseem ceeb ntawm cov khoom muag pom. Flexographic luam ntawv yog tsim nyog rau ntau lawm, ceev ceev ceev, tsawg peev hauv cov cuab yeej, hloov pauv phaj, yog qhov kev xaiv tseem ceeb rau cov tuam txhab me thiab nruab nrab - khob khob loj. Tom qab luam ntawv, cov ntawv sau ntawv yuav tsum tau ua kom tiav cov number case kom qhuav thiab kho kom nkag mus rau theem tom ntej, uas tuaj yeem tiv thaiv cov kuab tshuaj seem los ntawm kev ua phem rau zaub mov kev nyab xeeb thiab tsis txhob muaj kuab stains thaum tuag- txiav thiab molding.
III. Tuag- txiav
Cov ntawv luam ntawv yob lossis daim ntawv mus rau hauv lub tshuab txiav tuag thiab raug txiav rau hauv kiv cua- zoo li qhov khoob. Es tsis txhob ua duab plaub, sab phab ntsa ntawm lub khob Lub unfolded zoo nyob rau hauv ib tug meej ntxuam zoo; qhov curvature tsis ntawm tus kiv cua no txiav txim siab lub khob zaum kawg taper thiab ntim.
Kev tuag- txheej txheem txiav yuav tsum nrog cov hauv qab no:
Contour txiav: Txiav cov ntawv ntawv rau hauv cov duab zoo nkauj.
Txo: Ua ntej-nias lub ntsej muag ntawm lub khob ntug kom yooj yim rau cov txheej txheem dov tom ntej.
Kev tshem tawm cov ntawv pov tseg: Tshem tawm cov khoom seem ntawm cov ntawv pov tseg ntawm cov kiv cua.
Tuag txiav raug ncaj qha cuam tshuam qhov zoo ntawm lub khob tsim. Yog hais tias qhov sib txawv me me ntawm seem dawb paug dhau qhov kev txwv, qhov tsis xws luag xws li cov hlua khi tsis sib xws, lub cev tsis sib haum xeeb lossis cov dej xau tuaj yeem tshwm sim thaum lub sijhawm molding; yog li ntawd, qhov tseeb ntawm daim ntawv khob tuag- feem ntau yuav tsum tau txiav nyob rau hauv ± 0.15 hli.
IV. INTRODUCTION khob lub cev ua txheej txheem
Tom qab tus kiv cua billet nkag mus rau hauv lub khob ntawv lub tshuab, cov kauj ruam tseem ceeb hauv qab no yuav tsum tau ua kom tiav cov txheej txheem tsis siv neeg ntawm daim ntawv khob lub cev:
1. Pub thiab dov
Lub caj npab neeg hlau siv lub scalloped dawb paug los ntawm lub hopper thiab ib tug tsim mandrel (ib tug conical steel core) sai sai qhwv lub tiaj tus duab los qhia rau hauv lub conical profile ntawm lub khob.
2. Sab Seam Kub Sealing
Adhesive sab seam yog thawj kauj ruam tseem ceeb hauv kev ua kom lub khob ntawv tsis txhob xau. Tam sim no muaj ob txoj haujlwm tseem ceeb:
Cua kub foob: Cov cua kub heats PE txheej ntawm lub seam mus rau lub xeev molten thiab adheres thiab solidifies nyob rau hauv siab; qhov no muab cov nyhuv sealing ruaj khov thiab yog cov txheej txheem kev sib khi feem ntau.
Ultrasonic welding: Ultrasonic vibrations tsim kev sib txhuam kub, fuses PE txheej, ceev, haum rau siab - ceev daim ntawv khob ntau lawm kab.
3. Hauv qab blanking thiab hauv qab curling
Circular paperboard blanks (hauv qab discs) siv rau hauv qab ntawm lub khob yog tsis tu ncua punched tawm los ntawm ib tug tshwj xeeb tuag cutter thiab tam sim ntawd xa mus rau hauv qab curling rooj. Ntawm no, cov ntug hauv qab ntawm lub khob folds inwards, txuas mus rau ib tug mandrel thiab lub ntug ntawm lub hauv qab disc, tom qab tshav kub sealing thiab compression los tsim ib tug ruaj ntseg, leak{1}} pov thawj puag qauv. Qhov zoo ntawm cov txheej txheem hauv qab curling ncaj qha txiav txim siab qhov dej tsis kam ntawm lub khob thiab sawv cev rau theem xav tau tshaj plaws hauv cov txheej txheem.
4. Lub ntug ntawm lub khob curls;
Lub ntug sab sauv ntawm lub khob yog dov tawm sab nraud los ntawm cov cuab yeej curling los tsim ib lub voj voog ncig (curl). Ntxiv nrog rau kev txhim kho kev haus dej haus cawv, cov txheej txheem curling tseem txhim kho lub zog ntawm cov rims, tiv thaiv lub khob los ntawm kev ntes thaum deformed.
V. Kev Tshawb Fawb thiab Kev Tswj Xyuas Zoo
Tom qab cov ntawv khob tau tsim, nws dhau los ntawm kev tshuaj xyuas zoo thiab tom qab ntawd mus rau theem ntim:
Txheeb xyuas qhov tshwm sim: Tshawb xyuas qhov kev ncaj ncees ntawm kev luam ntawv, qhov zoo ntawm cov seams, uniformity ntawm cov npoo, tawg lossis deformation ntawm lub khob.
Kev ntsuas kev ruaj ntseg: Sau lub khob nrog dej, tawm rau ib lub sijhawm (feem ntau 30 feeb mus rau 1 teev) thiab xyuas cov hauv qab thiab sab seams kom xau.
Kev kuaj kev nyab xeeb thiab kev nyab xeeb: Kev ntsuam xyuas yog ua raws li cov qauv ntawm cov khoom noj khoom haus (xws li GB4806 series) los ntsuas PE txheej tsiv teb tsaws, fluorescent residue thiab number case kev nyab xeeb kom ua raws li cov kev cai ntawm kev nyab xeeb khoom noj.
Dimensional soj ntsuam: xyuas tias rim txoj kab uas hla, lub hauv paus txoj kab uas hla, khob qhov siab thiab ntim yog nyob rau hauv lub kam rau ua.
VI. INTRODUCTION Ntim thiab shipping
Tom qab cov khob ntawv tau raug tshuaj xyuas thiab tsim nyog, lawv raug suav thiab muab tso rau hauv cov txheej txheem, tom qab ntawd ntim rau hauv cov txheej txheem hauv cov hnab yas lossis ntsws- cov hnab ntim ua ntej ntim rau hauv cov thawv sab nrauv, cov tais thiab xa mus. Cov khob ntawv yuav tsum muaj dej noo- tiv taus thaum khaws cia thiab thauj, thiab lub tsev khaws khoom kub thiab av noo yuav tsum tau tswj kom tsis pub dhau qhov txwv kom tsis txhob nqus dej thiab deformation ntawm cov khob ntawv thiab PE txheej adhesion.
Cov lus nug nquag
Nqe Lus Nug 1: Dab tsi yog qhov ua rau cov dej xau hauv lub npoo ntawm lub khob ntawv?
A: Sab seam to feem ntau yog tshwm sim los ntawm qhov tsis txaus thermalsealing kub, uas tiv thaiv PE txheej los ntawm kev sib xyaw kom zoo; tsis sib npaug sealing siab, uas ua rau tsis zoo adhesion nyob rau hauv qee qhov chaw; tsis raug scalloped ntxhib txiav, uas ua rau tsis txaus seam sib tshooj; los yog pinhole defects nyob rau hauv lub substrate PE txheej. Yog hais tias huab cua xau tshwm sim, qhov ntsuas kub ntawm qhov ntsuas kub, qhov ntsuas siab thiab cov txheej txheem substrate yuav tsum tau kuaj xyuas.
Cov khob ntawv puas tuaj yeem siv sib hloov rau cov dej kub thiab txias?
A: Kev hloov pauv tsis pom zoo siv. Cov khob haus dej kub muaj qhov kub siab tiv thaiv ob npaug - sab PE txheej (feem ntau Tsawg dua lossis sib npaug li 85 degree), thaum lub khob dej txias tsuas muaj PE txheej ntawm lawv cov phab ntsa sab hauv; Kev cia ntev ntawm cov dej kub hauv cov dej haus txias tuaj yeem ua rau cov ntaub ntawv sab nrauv kom nqus dej noo thiab muag muag, cuam tshuam rau kev ncaj ncees thiab kev nyab xeeb ntawm cov mugs.
Q4: Puas yog qhov hnyav ntawm daim ntawv zoo dua?
Teb: Tsis tas. Cov grammage siab dua txhais tau tias siv cov ntawv yooj yim dua, uas feem ntau ua rau zoo dua rigidity thiab rwb thaiv tsev, tab sis kuj nce nqi. Qhov kub, ntim thiab kev siv cov dej haus yuav tsum raug coj mus rau hauv tus account hauv kev xaiv, thiab xaiv cov qauv sau ntawv tsim nyog rau kev ua haujlwm yuav pab kom tsis txhob muaj cov khoom pov tseg.
