Keeb Kwm Kev Txhim Kho ntawm Kraft Daim Ntawv Hnab

Feb 11, 2026 Tso lus

Nyob rau hauv lub xyoo pua 19th, ua ntej qhov tshwm sim ntawm loj - cov khw muag khoom loj, cov neeg feem ntau yuav tag nrho lawv cov khoom siv niaj hnub los ntawm cov khw muag khoom noj ze ntawm lawv qhov chaw ua haujlwm lossis chaw nyob. Cov khoom no, ntim rau hauv cov thawv ntoo, hnab ntaub, lossis lub thawv ntoo, tau thauj ntau mus rau cov khw muag khoom noj, thiab muag rau cov neeg siv khoom me me ua pov thawj tias mob taub hau. Cov neeg tsuas tuaj yeem mus yuav khoom nqa pob tawb lossis cov hnab ntim khoom hauv tsev. Nyob rau lub sijhawm ntawd, cov ntaub ntawv raw cov ntaub ntawv tseem yog jute fiber thiab qub linen scraps, tsis zoo thiab tsis tshua muaj, txawm tias tsis txaus los ua kom tau raws li cov kev xav tau ntawm cov ntawv xov xwm luam ntawv. Nyob ib ncig ntawm 1844, tus German Friedrich Köhler tau tsim cov ntoo pulp papermaking, txhawb txoj kev loj hlob ntawm daim ntawv kev lag luam thiab indirectly muab nce mus rau thawj coj mus muag hnab ntawv nyob rau hauv keeb kwm. Xyoo 1852, American botanist Francis Waller tau tsim thawj lub hnab ntawv ua tshuab, uas tau nce mus rau Fabkis, Tebchaws Askiv, thiab lwm lub tebchaws nyob sab Europe. Tom qab ntawd, qhov tshwm sim ntawm plywood hnab ntawv thiab kev nce qib hauv cov hnab ntawv tshuab xaws tau ua rau kev hloov cov hnab paj rwb, yav tas los siv rau kev thauj khoom ntau, nrog cov hnab ntawv.

 

Thawj kraft daim ntawv lub hnab ntim khoom tau tsim nyob rau xyoo 1908 hauv St. Paul, Minnesota, Tebchaws Asmeskas. Ib lub khw muag khoom noj hauv zos, Walter Duvina, nrhiav kev txhawb nqa kev muag khoom, pib nrhiav txoj hauv kev los txhawb cov neeg siv khoom kom yuav ntau dua ib zaug. Duvina ntseeg tias nws yuav tsum yog lub hnab prefabricated- pheej yig, siv tau yooj yim, thiab muaj peev xwm txhawb nqa tsawg kawg yog 75 phaus. Tom qab ntau qhov kev sim, nws txiav txim siab ntawm kraft ntawv ua cov khoom siv. Kraft daim ntawv yog tsim los ntawm cov tawv nqaij los ntawm ntev -fibered coniferous ntoo thiab tau txais kev kho mob me me nrog caustic soda thiab sodium sulfide thaum lub sijhawm ua noj. Qhov no txo ​​qis qhov kev puas tsuaj rau lub zog qub ntawm cov ntoo fibers, ua rau cov ntawv nrog cov fibers nruj nreem, muaj zog zoo nkauj, thiab muaj peev xwm tiv taus qhov nro thiab siab tsis tawg. Plaub xyoos tom qab, thawj kraft ntawv lub hnab khw tau yug los. Nws muaj cov duab plaub hauv qab, muab lub peev xwm loj dua li V- cov hnab ntawv hauv qab. Ib txoj hlua khiav los ntawm nws cov hauv qab thiab sab kom nws cov load-cov kabmob muaj peev xwm, thiab ob txoj hlua rub rau saum lub hnab ntawv kom yooj yim nqa. Duvina hu lub hnab khw no tom qab nws tus kheej thiab patented nws nyob rau hauv 1915. Los ntawm lub sij hawm ntawd, txhua xyoo kev muag khoom ntawm lub hnab khw no tau tshaj ib lab units.