Kev siv cov formic acid hauv tawv

Daim ntawv thov ntawmformic acid hauv tawv

Tawv yog cov tawv nqaij denatured uas tau txais los ntawm lub cev thiab tshuaj ua haujlwm xws li tshem tawm cov plaub hau thiab tanning.Formic acid tau siv nyob rau hauv ntau yam sib txuas xws li kev tshem tawm cov plaub hau, tanning, xim kho thiab pH hloov nyob rau hauv tawv ua. Lub luag haujlwm tshwj xeeb ntawm formic acid hauv tawv yog raws li hauv qab no:

1. tshem tawm cov plaub hau

Formic acid tuaj yeem ua rau cov plaub mos mos, thiab txhawb kev tawg thiab tshem tawm cov protein, uas pab hauv kev ntxuav thiab ua cov tawv nqaij tom qab.

2. Tanning

Nyob rau hauv cov txheej txheem tanning ntawm tawv,formic acid tuaj yeem siv los ua tus neeg sawv cev nruab nrab los pab tus neeg sawv cev tanning hauv tawv kom ua tiav nws lub luag haujlwm, yog li txhim kho qhov tawv thiab softness ntawm tawv.

3. Kev teeb tsa thiab dyeing

Thaum lub sij hawm xim teeb thiab dyeing txheej txheem ntawm tawv,formic acid pab cov dyeing mus rau hauv tawv thiab txhim khu cov nyhuv dyeing, thaum tiv thaiv cov tawv nqaij los ntawm kev puas tsuaj los ntawm dye molecules. Kev siv rationalformic acid tuaj yeem txhim kho qhov kev ntxhib los mos ntawm tawv thiab ua rau saum npoo ntawm tawv dua du thiab ci.

4. Kho pH

Formic acid tuaj yeem siv los tswj cov pH thaum lub sijhawm ua cov tawv nqaij, uas txo qhov pore loj thiab ua kom cov tawv nqaij ntom ntom, yog li txhim kho cov dej tsis kam thiab ua haujlwm ntev. Feem ntau, pH tus nqi ntawm daim tawv nqaij liab qab tom qab desliming softening yog 7.5 ~ 8.5, thiaj li yuav ua rau cov tawv nqaij grey haum rau kev khiav hauj lwm ntawm cov txheej txheem softening, nws yog ib qhov tsim nyog los kho cov pH tus nqi ntawm daim tawv nqaij liab qab, txo nws mus rau 2.5 ~. 3.5, kom nws haum rau chrome tanning. Txoj kev tseem ceeb los kho tus nqi pH yog acid leaching, uas feem ntau yog sivformic acid. Formic acid muaj cov molecules me me, nkag mus sai, thiab muaj cov nyhuv npog ntawm chrome tanning kua, kom lub convergence ntawm me me tawv grain yog zoo thaum lub sij hawm tanning. Nws yog feem ntau siv ua ke nrog sulfuric acid thaum lub sij hawm acid leaching.