Kev siv cov fluorescent whitening agents rau viscose fibers
Txij li thaum viscose fiber tau bleached los ntawm sodium hypochlorite thaum lub sij hawm tsim cov ntaub so ntswg thiab muaj ib tug siab heev whiteness, nyob rau hauv ib txwm muaj xwm txheej, nws tsis tas yuav bleached thiab yuav ncaj qha whitened nrog ib tug fluorescent whitening agent. Piv txwv li, viscose fiber ntau cov ntaub uas xav tau tshwj xeeb siab dawb tuaj yeem bleached nrog oxygen bleach thiab ces whitened. Thaum lub sijhawm ua haujlwm ntxuav hniav dawb, cov neeg kho tshuab nro yuav tsum raug txo kom tsim nyog, thiab dip dyeing feem ntau yog siv los txo cov deformation ntawm cov ntaub.
Daim ntawv thov piv txwv 1:
Fluorescent whitening agent PRS (CI Fluorescent whitening agent 134) muaj cov nyhuv whitening zoo ntawm viscose fiber. Nws tus nqi pH muaj ntau daim ntawv thov thiab muaj cov tshuaj chlorine zoo. Oxygen bleaching, chlorine bleaching, thiab lwm yam yog txhua yam ruaj khov. Viscose fiber tuaj yeem ua kom dawb los ntawm dip dyeing, pad dyeing thiab lwm txoj hauv kev. Qhov ntau npaum li cas nyob ntawm qhov xav tau whiteness thiab degree ntawm bleaching.
(1) Dip dyeing thiab whitening formula:
Fluorescent whitening agent PRS {{0}}. 2% ~ 0.8% (omf)
Anhydrous Yuanming hmoov 1% ~ 10% (omf)
cawv piv 1:10 ~ 1:40
pH tus nqi 7-10
Cov txheej txheem ntxuav hniav dawb: txheej txheem ntawm 40-60 rau 10-30 feeb.
(2) Pad dyeing thiab whitening mis:
Fluorescent whitening agent PRS 1 ~ 4g / L
Anhydrous Yuanming hmoov 1-10g/L
Cov txheej txheem ntxuav hniav dawb: txheej txheem ntawm 20-50 rau 5 vib nas this.
Daim ntawv thov piv txwv 2:
Fluorescent whitening agent VBL kuj yog siv los ua kom cov viscose fibers. Cov txheej txheem ntxuav hniav dawb muaj xws li dip dyeing, pad dyeing thiab jig dyeing, thiab lwm yam, thiab tseem siv rau hauv cov xim luam ntawv.
(1) Viscose fiber silk whitening dip dyeing formula:
Fluorescent whitening agent VBL 0. 2 g / L
Hydrogen peroxide (30%) 6g / L
Sodium silicate (tus txheeb ze ntom ntom 1. 4) 5g / L
Txheej txheem whitening:Dip cov moistened viscose fiber rau hauv cov tshuaj ntxuav hniav dawb ntawm chav tsev kub kom nthuav tawm cov tshuaj zas xim thiab ua kom sov. Thaum kub nce mus txog 40 ntxiv hydrogen peroxide thiab sodium silicate. Tshav kub rau 80 degree hauv 20 feeb, incubate rau 60 feeb, tshem tawm, yaug nrog dej, thiab qhuav.
(2) Pad dyeing thiab whitening mis rau viscose luv fibers:
Fluorescent whitening agent VBL 1. 5 ~ 2. 5g / L
Trisodium phosphate 0. 5g / L
Sodium thiosulfate 0. 2 g / L
Indigo tov ({0}}. 2%) 5mL/L
(3) Viscose rayon ntaub yog woven nrog glossy viscose yarn. Raws li qhov yuav tsum tau ua, fluorescent whitening tus neeg sawv cev tuaj yeem siv ib leeg rau kev ntxuav hniav dawb, lossis nws tuaj yeem ua kom dawb hauv tib lub da dej raws li cov pa bleaching. Yog hais tias hypochlorite yog siv rau bleaching thiab whitening, sodium bicarbonate yuav tsum tau siv rau dechlorination ua ntej whitening. Qhov koob tshuaj yog 0. 6 g/l. Vim lub me me da dej piv ntawm dye vat jig dyeing thiab whitening, qhov ntau npaum ntawm fluorescent whitening tus neeg sawv cev yuav raug txo me ntsis.
Curl Dye Whitening Formula:
Fluorescent whitening agent VBL {{0}}. 5% ~ 0.7% (omf)
Detergent 1g / L
Sodium perborate 1 ~ 2g / L
cawv ratio 1:3
(4) Muaj ntau ntau yam ntawm viscose fibers, thiab cov mis ntawm cov xim luam ntawv paste yog txawv me ntsis nyob ntawm seb hom ntaub. Hauv qab no yog ib daim ntawv qhia rau pigment printing paste rau rayon fabrics.
Pigment printing formula (mass feem):
Xim Dawb FTW 20%
Optical brightener VBL 2%
Cov hmoov nplej hmoov nplej slurry 25%
Acetic acid 0. 2%
Carapace kua 50%
