calcined kaolin for paper ->White Barite

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calcined kaolin for paper

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Metals and minerals->Marble & Stone->White Barite

Product Specification

Model No:	GB-CK97

Country	CN
Brand	BRITEX
Materials	kaolin
Weight	1000 mt per month
Color	white
Packing	in 25 kg plastic bag
Minimum Order	26 mt
Payment Term	negotiable

Product Detail

Calcined kaolin is mainly used as coating and filler pigment in papermaking to improve the brightness, smoothness and printing performance of paper; Also to increase the opacity of it. Calcined kaolin is strong in covering and high in brightness due to its sheet structure. Meanwhile, calcined kaolin makes the coating having excellent bulk density and printing applicability due to its special porosity structure. Thus, the paper has better ink injection and it can obviously improve the printing performance. Calcined kaolin used in papermaking usually has higher requirement in the particle size, brightness, oil absorbency and bulk density.

As calcined kaolin pigment, GB series product with high brightness, excellent light scattering property and low abrasion value can be applied to filing and coating(the most applicable area). Its value is as following:
1. Replace titania or other high cost filling pigments and lower production cost.
2. Improve paper property, such as smoothness, glossiness and opacity.
3. Improve ink absorbency and print fitness.
4. Excellent compatibility with various additives.
5. Compared with other pigments, the consistency of GB-CK is 66.3%, while its viscosity is only 90 Mpa. S, so it can be compounded in high solid content coating and is applicable to high speed coatings.

Typical Physical Properties:
Brightness(T457): 88-89% min
Particle Size (-2micron): 88 (+/-2)%
Medium particle Size (micron): 0.8
Abrasion Value (mg/100, 000rev): 25-40
Refractivity: 1.62
Screen residue (325 mesh %): 0.003 max
Oil Absorbency (g/100g): 60+/-5
Dispersion (micron): 55 max
PH: 5.5-7.0
Bulk Density (kg/m3): 330
Moisure (%): 0.8 max

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