Product Name: Optical Brightener OB
Chemical Name: 2,5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular Formula: C26H26N2O2S
Molecular Weight: 430.2
UV absorption wavelength: 357nm
Cas No.: 7128-64-5
C.I. No.: 184
EC No.: 230-426-4
Specifications:
Appearance light yellowish green powder
Melting Point 198-202
Purity â?¥98.5%
Color Shade Blue
Fineness â?§400 mesh
Water insoluble Content â?¦0.5%
Optical brightener OB is a kind of benzoxazole compound, it is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze.
Package:
25kg per carton drum with double layer PE bag inside, or adjust according to clients demand.
Storage:
Store at cool and dry place.
Expiry date: 24 months.
Product NameOptical Brightening Agent OB Chemical Name2,5'-Bis[2-(5-tert-buty l-2 benzoxazoly)thiophene CAS No.7128-64-5 C.I. No.184 Structural Formula Molecular FormulaC26H26N2O2N2 Molecular Weight430 Technical IndexAppearance:slight greenish yellow powder Melting Point:200-202°C Purity:99% UsesMainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc. Pplastics:about 200g per 1000kgs Packing 25 kg per fiber drum
Optical brighteners, also known as fluorescent whitening agents (FWAs) or optical brightening agents (OBAs), are chemical compounds used in various industries, primarily in textiles, paper, and detergents. These substances absorb ultraviolet (UV) light and re-emit it as visible blue light, making colors and whites appear brighter and more vivid. Optical brighteners are often added to laundry detergents to give the illusion of cleaner and whiter clothing by enhancing their visual brightness. They are also used in the paper industry to improve the brightness and whiteness of paper products. Optical brighteners' ability to improve the appearance of materials under certain lighting conditions makes them valuable in enhancing the visual quality of a wide range of consumer and industrial products.
Supplier: Industrial chemicals likes tetra sulpho optical brightener and di sulpho optical brighteners for pulp and paper, caustic soda flakes / sodium hydroxide, caustic soda lye, asa sizing agent, akd sizing agent, wet strength resin agent / dry strength resin (polyamido polyamine epichlorohydrin resin with a high% of solids 25 35%), sae anionic for sizing agent (butyl acrylate styrene polymer 24 26%), sae cationic for sizing agent (copolymer n [3 (dimethylamino) propyl] methacrylamide / styrene ]]) for paper industry, fluorescent brightening agents, optical brighteners for paper, fluorescent whitening agents, optical brightener, carbomer, carbopol, polyaluminium chloride, carbon brushes and brush holders, pp granules, plastic granules and many more.
BRIGHTOMNI BBU-L is a Tetrasulpho type optical whitener used in Paper size press, coating and wet end applications,to achieve high whiteness and brightness properties of Paper. BRIGHTOMNI BBU-L Liquid is special Optical Brightener of medium affinity Tetra Sulpho OBA for paper. It is an innovative OBA for the WET END application in acidic to neutral media (pH 4-7). BBU-L has a broad spectrum of application and has good compatibility with Acids & Alum. Average dosage 0.2 to 6.0 g/L with size press liquor. BRIGHTOMNI BBU-L can perform with conventional Starch at the size press. Also together with CMC, PVA and anionic and slightly synthetic sizing additives. It can be a ready use optical whitener in size press. This product is used to attain moderate to high whiteness.
Product information Product name: OPTICALBRIGHTENER BA Color Index No: C.I.113 Synonyms: FBA 113; OBA 113,Fluorescent Brightener BA; Optical Brightener Agent BA Molecular Structure: Molecular Formula: C40H42N12O10S2Na2 Molecular Weight: 960.94 CAS No: 12768-92-2 C.I. No.: C.I.113 Appearance: straw yellow uniform powder E-value: 370 Features: Anionic, resistant to PH4.5-11. Applications Mainly used in pulp brightening, surface sizing and coating, etc, with high acid resistance. It is the first choice to produce paper of high brightness requirements Reference dosage: 1. When brighten in pulp, BA should be added before alum or cationic auxiliary agent; dosage: 0.05-0.4% (of absolute dry pulp). 2. In surface sizing, it can work with CMC, PVA, starch, or anionic or cationic synthetic sizing agent. 3. In coating, it can be used at any stage of coating production in the form of aqueous solution after dissolve. Package & Storage: 10kg or 25kg/ craft paper bags. It canbe packed in other forms according to user's requirements. Shelf life: not more than 24 months inthe room temperature.
Product information Product name:Tonex white SWN Color Index No: C.I.140 Synonyms: FBA 140; OBA 140,Fluorescent Brightener SWN; Optical Brightener Agent MDAC, Optical Brightener MDAC Molecular Structure: Molecular Formula : C14H17NO2 Molecular Weight: 231.28 CAS No 91-44-1/61968-71-6 C.I. No.: C.I.140 Appearance off white powder Melting point :70.5-73 Assay: 98% Fineness 200 meshes Features: 1.Multipurpose brightener with excellent whiteness, soluble in ethanol but insoluble in water. 2.having properties of good solubility and compatibility. Applications This product is mainly used for whitening of wool,natural silk, nylon, acetate fiber and triacetate fiber. It can also be usedfor whitening of cotton and cyanamide, and can be used for whitening ofcellulose fiber by adding resin. Reference dosage: The dosage is: nylon 0.05-0.3%, wool 0.05%-0.35%,acetate fiber 0.05-1.4%, triacetate fiber 0.1-2%, cylandex 0.05%-0.8%. In addition, this product can be added to soap and detergent for washingfabrics, effective in the PH=3-11 range, can improve the appearance of thefabric after washing. It can also be used for coated paper, plastic andchromatic printing coatings. Package & Storage: 25kg fiber drumor for the special demand . Should be storedin cool, dry and ventilate place, and storage time should not exceed 24 months
Product information Product name: OPTICALBRIGHTENER CBS-X (CBS-351) Color Index No: C.I.351 Synonyms: FBA 351; OBA 351,Fluorescent Brightener CBS-X (CBS-351); Optical Brightener Agent CBS-X(CBS-351) MolecularStructure: Molecular Formula: C28H20S2O6Na2 Molecular Weight: 562.5643 CAS No: 27344-41-8 EINECS No: 248-421-0 Appearance: canary yellow powder (Granular) E-value: 1140 Features: 1.It has high whitening effect on cellulose fiber in cold and warm water. 1. Repeated washing does not causeyellowing or discoloration of the fabric. 2. It has excellent stability in super concentrateddetergen Applications Mainlyused in high-grade synthetic washing powder, super concentrated liquiddetergent, can also be used for soap, soap whitening. Reference dosage: Fluorescentbrightener CBS-X can be added to any process in the production of the type ofdetergent, such as dry mixing, spray drying, agglomeration, spray mixing, etc. Dosage: 0.1, 0.5%. Package & Storage: 10kg or 25kg/ fiber drums. It can bepacked in other forms according to user's requirements. Shelf life: not more than 24 months inthe room temperature.
Supplier: Optical brightener ob(c.I.184), optical brightener ob1(c.I.393), optical brightener cbs(c.I.351), optical brightener ksn(c.I.368), optical brightener kcb(c.I.367), basic red 1, basic red 1:1, basic violet 11, basic violet 11:1
Product information Product name: OPTICALBRIGHTENER ER Liquid(PS-1. ER330) Color Index No: C.I.199 Synonyms: FBA 199; OBA 199,Fluorescent Brightener PS-1(ER330); Optical Brightener Agent PS-1(ER330) Molecular Structure: Molecular Formula: C24H16N2 Molecular Weight: 332.3972 CAS No: 13001-39-3 C.I. No.: C.I.199 Appearance: yellowish pulpy liquid E-value: 330 Features: Thisproduct is mainly used for whitening and brightening of blending fabrics suchas polyester and polyester cotton, polyester silk, polyester yarn, polyesterramie, polyester wool as well as whitening of chemical fiber and plastic. Thisproduct applies to pad dyeing and HTHP dip dyeing, especially low temperatureadsorption and high temperature setting process. Applications 1. Pad-dyeing hot melt method: Use quantity: 1.5-3g/L Process flow: two dip dyeing and two paddyeing (mangle expression 70) pre-drying (100) curing and setting (180 190, 40-30s). 2. HTHP dip dyeing method: Use quantity: 0.2 0.5% (o.w.f) Dyeing temperature: 120 130 Dyeing time: 30 - 60 minutes PH value: 4.5 - 5.5 (adjusted withacetic acid) Low temperature adsorption and hightemperature color development dyeing method: Use quantity: 0.5 1.0% (o.w.f) Dyeing temperature: 50 60 Dyeing time: 30 minutes PH value: 4.5 - 5.5 (adjusted withacetic acid) Process flow: add BC-100 whitening agentand additive (anhydrous sodium sulphate 1-2% relative weight of dyed cloth,acetone is adjusted in PH) and fabric to dye bath at room temperature temperature rises to 50, deying for 30min washing dehydration and pre-drying (100) setting and baking (180-190, 40-30s). Package & Storage: 25kg/50kg plastic drums. It can be packedin other forms according to user's requirements. Shelf life: not more than 12 months inthe room temperature. Cautions: 1.If suspension liquid is foundprecipitated and separated, just shake it before use, which does not affect theuse effect. 2.Please note that use this product within its yellow spot, i.e. paddyeing 5g/l,dip dyeing 0.8%(o.w.f). If use this product beyond its yellow spot, it will be easy to becomeyellow.
