Chemical Name 1,1'-biphenyl-4,4'-bis-benzoxazole
CAS No. 40470-68-6
C.I. No. 378
Technical Index
Appearance:slight yellow powder
Melting Point:219-221�°C
Purity:â?¥99%
Maximum UV Spectrum Absorption:359nm
Uses Mainly be used in whitening of plastics such as PVC,PS,ABS,TPR,etc.
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.
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
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.
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.
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.
Dove prism is a kind of reflection prism used for image reflection.Dove prisms are formed by truncated rectangular prisms.A beam of light enters one of the slanted faces of the prism, fully reflects from inside the longest (bottom) face, and then exits from the opposite slanted face.The image through the prism is flipped, and since only one reflection occurs, the handedness of the image is reversed.Dove prisms have an interesting property that when they rotate along the vertical axis, the transmitted image rotates twice as fast as the prism.It is very important that applications use parallel or collimating beams and keep the large square reflector very clean.Another application is as an inverse.
Dove Prism
Specifications
Material BK7, UV Fused Silica, Sapphire, ZnSe, Caf2, Si, Ge, etc.
Size 2mm-300mm
Size tolerance +/-0.02mm or customer request
Clear Aperture 90%
S/D 60-40 40-20 20/10 10/5
Flatness 1/10lambda at 632.80nm
Chamfer 0.25mmx45
Angle tolerance
