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Paper composition and its production method

A composition and composite technology, applied in the direction of inorganic compound addition, papermaking, textiles and papermaking, etc., can solve the problem of reducing the light scattering efficiency of pigments

Inactive Publication Date: 2018-04-17
DOW GLOBAL TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reagglomeration of the pigment in the decor paper composition significantly reduces the light scattering efficiency of the pigment and the composition will require more pigment to obtain a satisfactory light scattering efficiency

Method used

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  • Paper composition and its production method
  • Paper composition and its production method
  • Paper composition and its production method

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Experimental program
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[0065] I. Raw materials

[0066]

[0067] II. Preparation and Methods

[0068] Stealth complex dispersions 1 to 3 were prepared according to the following method: Melt-kneading TI-PURE in a twin-screw extruder TM R105TiO 2 and INFUSE TM 9500 polymer to form a homogeneous solid compound in the form of pellets; the homogeneous solid compound, PRIMACOR TM 5980i An initial stream (IA) of polymer and water to form the high internal phase emulsion phase; and a dilution stream of the high internal phase emulsion phase with water melt kneaded in the same twin-screw extruder.

[0069] Preparation of Stealth Complex Dispersion 1

[0070] Aqueous TiO of ethylene / propylene olefin block copolymer stabilized with ethylene acrylic acid copolymer and neutralized with potassium hydroxide was prepared according to the following procedure 2 Dispersions.

[0071] 25,000 copies of TI-PURE TM R105TiO 2 powder and 10,000 parts of INFUSE TM 9,500 ethylene / propylene olefin block copoly...

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PUM

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Abstract

A new paper composition comprising, a) from 15 wt. % to 70 wt. % a hiding composite comprising based on the total weight of the hiding composite, from 30 wt. % to 75 wt. % pigment particles and from 25 wt. % to 70 wt. % a thermoplastic polymer. The pigment particles are hydrophobically treated with the surface tension of the pigment particles being from 0.1 to 50 mN / m, and the surface tension difference between the pigment particles and the thermoplastic polymer being less than 40 mN / m; and b) from 30 wt. % to 85 wt. % a paper pulp. Process of making such a new paper composition.

Description

technical field [0001] The present invention relates to a paper composition with improved light scattering efficiency and a method for its manufacture. Background technique [0002] Compositions containing pigments are widely used in architectural, automotive and industrial applications. The pigment is mixed with a dispersant in water so that the pigment agglomerates are wetted and dispersed into smaller pigment particles, the pigment grind. Mechanical shear is typically used to break down pigment agglomerates into separate individual pigment particles which in turn are stabilized by a dispersant to maximize the light scattering ability of the pigment, ie opacity. In high pigment content compositions, the pigment particles tend to re-agglomerate easily and their light scattering efficiency decreases. To compensate for reagglomeration, even higher pigment loadings would be required to achieve satisfactory light scattering efficiency. [0003] The decor paper composition re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/67D21H23/04
Inventor 王涛W·古陈军宇H·杜Y·严R·马
Owner DOW GLOBAL TECH LLC