Xyoo 1868, Hyatt tau tsim cov khoom yas uas nws hu ua celluloid. Celluloid tau tsim los ntawm Alexander Parkes hauv xyoo 1851. Hyatt tau txhim kho rau nws, ua rau nws tuaj yeem ua tiav cov duab tiav. Xyoo 1872, Hyatt thiab nws tus tij laug Yaxayas patented thawj plunger txhaj tshuaj molding tshuab. Lub tshuab no kuj yooj yim piv rau cov siv nyob rau hauv lub xyoo pua 20th. Nws ua haujlwm tseem ceeb zoo li rab koob hypodermic loj. Cov koob no loj heev (diffuser) txhaj cov yas rau hauv pwm los ntawm lub tog raj kheej rhuab.
Kev Tsov Rog Thoob Ntiaj Teb thib Ob hauv xyoo 1940 tau tsim qhov kev thov loj heev rau cov khoom pheej yig, loj- tsim cov khoom.
Xyoo 1946, Asmeskas tus neeg tsim khoom James Watson Hendry tau tsim thawj lub tshuab txhaj tshuaj molding, uas tso cai rau kev tswj xyuas ntau dua ntawm kev txhaj tshuaj nrawm thiab qhov zoo ntawm cov khoom tsim. Lub tshuab no kuj tau tso cai rau kev sib xyaw ua ke ntawm cov xim lossis cov khoom siv rov ua dua tshiab nrog cov khoom siv nkauj xwb ua ntej txhaj tshuaj. Xyoo 1951, Tebchaws Meskas tau tsim thawj tus ntsia hlau- hom txhaj tshuaj molding tshuab, uas tsis muaj patented, thiab cov cuab yeej no tseem siv niaj hnub no.
Nyob rau xyoo 1970, Hendry tau mus tsim thawj cov pa roj- pab txhaj tshuaj molding txheej txheem, tso cai rau kev tsim cov khoom sib txawv, hollow nrog cua txias sai. Qhov no tau txhim kho kev tsim qauv yooj yim thiab lub zog thiab qhov kawg - cov khoom tsim khoom ntawm qhov chaw, thaum txo cov sij hawm tsim khoom, nqi, qhov hnyav, thiab pov tseg.
