Tianli brand FWA (VBL)

型号tianli brand fwa (vbl)品牌tianli brand有效物质含量99.9（％）产品规格drum packing: 25kg执行标准international standards主要用途printing paper coating应用范围printing paper coating

tianlibrand fwa

molecularformula:c36h34o8n12s2na2

molecularweight:872.84 (according to 1991 international relativeatomic mass)

the maximum uv absorptionwavelength:348nm

executivestandard:gb/t10061-2004

:

projectindicators

1)appearance ~ yellow uniform light yellow powder

2)fluorescence intensity (e to standard), sub-100

3)the relative intensity (as standard), the sub-100

4)shade, (as standard) 100

5)whiteness (as standard)≥-3

6)moisture,% ≤ 5.0

7)water insoluble matter,%≤ 0.5

8)fineness (250um aperture sieve residue amount),%≤10.0

9)23 kinds of harmful aromatic amines limit, mg / kg foundgb/t10661-2004 standards .0

features:

vbl is a two fluorescent whitening agent(triazinylamino) typical fluorescent brighteners products can bedissolved in the soft water 80 times, was the nature of anions,acid degree of ph = 6 ~ 11, the dye bath ph of 8 9 appropriate. inacidic solution, due to acid enhance the fluorescence graduallyweakened, and yellow. resistant to hard water to 300ppm, resistanceto free chlorine to 0.25%, intolerant of copper, iron and othermetal ions, sodium hydrosulfite is stable, but not high temperaturebaking.it can be used with anionic surfactants or dyes, non-ionicsurfactant, hydrogen peroxide using the same bath. fluorescentcolors for glaucoma slightly purple (blue-purple). fluorescentbrightener vbl not with cationic dyes and surfactants, syntheticresin bath first shrink used the same body.

scope:

for the paper industry, paper pulp or paintwhitening, brightening. the paper product can solve the hair black,blue, hair black, not white sheet of paper cut and otherissues.

how to use:

inthe paper industry, with 80 times the water soluble fluorescentwhitening agent added to pulp or coating, the amount of dry pulp ordry coating weight of 0.1-0.3%.

packaging:

fluorescent brightener vbl cardboard drum linedwith plastic bags or covered with plastic paper bag, net weight25kg.

transportation:

transport and impact should be to preventexposure.

storage:

product should be stored in a cool, dry,ventilated warehouse, the storage period of twoyears.