Rau txhua tus neeg ua lag luam hauv kev lag luam molded pulp, kev xaiv ntawm cov khoom siv raw yog qhov tseem ceeb ntawm cov khoom zoo thiab cov txiaj ntsig. Cov lus nug nquag nug los ntawm cov neeg ua haujlwm tshiab yog: hom ntawv pov tseg zoo tshaj plaws rau lub tshuab qe tais? Cov khoom siv zoo tagnrho rau lub tshuab qe tais yogTsis muaj coated, corrugated cardboard (OCC), tshwj xeeb yog qib zoo li qub Corrugated Containers (OCC 11). Thaum lub tshuab qe tais tuaj yeem ua cov txheej txheem ntau yam ntawm cov ntaub ntawv pov tseg, OCC muab cov txiaj ntsig zoo ntawm fiber ntau lub zog, tus nqi qis, thiab yooj yim ntawm pulping, ua rau cov khoom ruaj khov, siab - cov tais zoo nrog cov qauv zoo heev.
Yog vim li cas corrugated cardboard yog superior nyob rau hauv nws fiber ntev. Cardboard thawv yog tsim los ntawm ntev, muaj zog nkauj xwb fibers uas tau ua tiav tsawg kawg nkaus. Thaum pub rau hauv lub hydrapulper ntawm lub tshuab qe tais, cov fibers ntev no cuam tshuam nruj thaum lub sij hawm tsim, tsim cov tais uas tiv taus crushing thiab pncturing. Qhov no yog qhov tseem ceeb rau kev tiv thaiv qe thaum lub sij hawm stacking thiab kev thauj mus los. Hauv qhov sib piv, cov ntaub ntawv xws li ntawv xov xwm lossis cov ntawv xov xwm muaj cov fibers luv uas ua rau cov tais tsis muaj zog uas tawg yooj yim.
Thaum OCC yog qhov zoo tshaj plaws, lub tshuab qe tais muaj ntau yam thiab tuaj yeem siv cov dej khib nyiab sib xyaw. Ntawm no yog ib daim ntawv teev npe ceev ntawm hom ntawv:
Qhov zoo tshaj plaws: Corrugated Cardboard (Carton Boxes, Shipping Boxes):Lub zog siab tshaj plaws, dej ntws zoo.
Zoo: Kraft Daim Ntawv (Brown Paper Bags, Wrapping Paper):Lub zog zoo, huv si pulp.
Fair: Office Paper (White Copier Paper):kim dhau; fibers tej zaum yuav nruj dhau rau qee cov pwm.
Poor: Glossy Magazines/Newspapers:luv fibers, tsis muaj zog; feem ntau muaj av nplaum fillers uas tuaj yeem txhaws cov pwm ntawm lub qe tais tshuab.
Ib qho kev xav tseem ceeb rau koj lub tshuab qe tais yog qhovpulp sib xws. Txij li cov duab los qhia yog thicker, nws yuav tsum tau nruj nreem ntaus hauv lub pulper kom tawg mus rau hauv fibers. Nws kuj nqus dej ntau dua. Cov neeg ua haujlwm yuav tsum saib xyuas qhov sib xws ntawm cov nqaij mos (feem ntau yog 0.8% - 1.2%) ze ze. Yog tias siv cov ntaub ntawv sib xyaw, nws raug nquahu kom sib tov siab - lub zog cardboard nrog cov ntaub ntawv softer kom ua tiav qhov sib npaug ntawm qhov tawv thiab formability.
Hauv kev xaus, thaum lub tshuab qe tais tuaj yeem siv ntau hom ntawv, ua ntejUncoated corrugated cardboard (OCC)yuav tawm los qhov muaj zog tshaj plaws, feem ntau cov tais ntim khoom lag luam. Los ntawm kev xaiv cov khoom siv raw, koj xyuas kom koj lub tshuab qe tais ua haujlwm zoo, txo cov pwm txhaws, thiab tsim cov khoom lag luam uas ua tau raws li qhov xav tau ntawm kev lag luam ntim khoom.