Hais txog Textile pH

1.PH yog dab tsi?

Tus nqi pH yog ib qho kev ntsuas ntawm acid-base siv ntawm cov tshuaj. Nws yog ib txoj hauv kev yooj yim los qhia qhov concentration ntawm hydrogen ions (pH = -lg [H +]) hauv kev daws. Feem ntau, tus nqi yog los ntawm 1 ~ 14 thiab 7 yog tus nqi nruab nrab. Lub acidity ntawm cov kua yog muaj zog, tus nqi yog me me. Lub alkalinity ntawm kev daws yog muaj zog, tus nqi yog loj dua.

2.Qhov tseem ceeb ntawm pH nrhiav pom

Qhov saum npoo ntawm tib neeg daim tawv nqaij yog qaug zog acid nrog pH nqi 5.5 ~ 6.0. Acid ib puag ncig tuaj yeem cuam tshuam kev loj hlob thiab kev tsim tawm ntawm qee cov kab mob pathogenic thiab tiv thaiv kev cuam tshuam ntawm cov kab mob sab nraud, tiv thaiv daim tawv nqaij los ntawm kev kis kab mob. Yog tias tus nqi pH siab tshaj tus qauv, raws li cov kua qaub dhau los yog alkali dhau lawm, qhov tsis muaj zog acid ib puag ncig ntawm tib neeg cov tawv nqaij yuav raug puas tsuaj, uas ua rau khaus khaus lossis tawv nqaij ua xua.

3.Principle ntawm textile pH nrhiav kom tau

Tom qab lubtextileyog muab rho tawm nrog dej distilled los yog deionized, siv pH meter nrog iav electrode los ntsuas pH tus nqi ntawm cov cawv extract.

4.Qhov laj thawj ntawm textile pH nqi tshaj tus qauv

(1) Kev cuam tshuam ntawm dyes thaum lub sij hawm tsim khoom: Cov khoom siv siv tshuaj dyes, vat dyes thiab sulfur dyes ua haujlwm nyob rau hauv alkali mob. Txawm hais tias daim ntaub nto tuaj yeem kho tau zoo los ntawm kev ntxuav dej, nws yuav cuam tshuam los ntawm pH tus nqi ntawm cov dej ntau lawm.

(2) Kev cuam tshuam ntawm dyeing thiab luam ntawv txheej txheem: rau paj rwb, ntaub plaub, txhob lo lo ntxhuav, polyester, nylon thiab acrylic, thiab lwm yam.scouring, dyeing thiab luam ntawv, muaj cov residual alkali thiab acid tshuaj thiab auxiliaries ntawm cov ntaub, uas muaj pH sib txawv. Tom qab kho los ntawm kev ntxuav dej, soaping, acid neutralization thiab ziab txheej txheem, thiab lwm yam, yog tias cov tshuaj auxiliaries ntau dhau los yog dej ntxuav tsis txaus, pH tus nqi ntawm textiles yuav dhau tus qauv, uas cuam tshuam rau kev hnav thiab kev ua haujlwm ntawm textiles.

(3) Kev cuam tshuam ntawm cov ntaub: Lub thickness ntawm cov ntaub yuav cuam tshuam cov ntaub nto. Rau cov ntaub nyias nyias, nws yooj yim los ntxuav tom qab dyeing thiab pH tus nqi ntawm daim ntaub nto yog tsawg. Rau cov ntaub tuab, nws yog ib qho nyuaj rau ntxuav tom qab dyeing thiab pH tus nqi ntawm daim ntaub saum npoo yog siab dua.

(4) Kev cuam tshuam ntawm cov neeg ua haujlwm hauv kev ua haujlwm yuam kev: qhov sib txawv dryness thiab av ntawm cov ntaub kuaj, qhov sib txawv ntawm qhov kub thiab qhov sib txawv ntawm lub sijhawm rho tawm, thiab lwm yam.

5.Kev txhim kho kev ntsuas rau textiles nrog pH tsis tsim nyog

(1) Acid-base neutralization: Yog hais tias ib nrab acid, ntxiv alkali rau neutralize. Yog hais tias ib nrab alkali, ntxiv acid rau neutralize. Feem ntau, nws yog ntxiv acetic los yog citric acid thiab sodium carbonate.

(2) Txhim kho covdyeingthiab txheej txheem tiav: Siv dej ntxuav, thiab lwm yam.

(3) Xaiv cov khoom zoo raw khoom thiab dyes.

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