Preparation method for shear-thinning water-based ball-point pen inks shear-thinning water-based ball-point pen ink compositions, and ball-point pens employing the same

Preparation method for shear-thinning water-based ball-point pen inks shear-thinning water-based ball-point pen ink compositions, and ball-point pens employing the same

  • CN 1,144,848 C
  • Filed: 02/05/1997
  • Issued: 04/07/2004
  • Est. Priority Date: 02/05/1996
  • Status: Active Grant
First Claim
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1. one kind is used to prepare the method for shearing the shear-thinning type aqueous ball point ink, and said ink comprises tinting material and aqueous carrier, and aqueous carrier contains water and water soluble polar solvent, and this method comprises:

  • Add the nonionic surface active agent of a kind of HLB value in the 8-12 scope in aqueous carrier, its add-on is 2.81 weight %-12.4 weight % of aqueous carrier;

    Mix said tensio-active agent, tinting material and aqueous carrier equably by stirring, to obtain a kind of composition for ink, use EM type rotational viscosimeter in rotation number be as 100rpm, temperature measure this composition for ink under 25 ℃

    the condition viscosity in the scope of 25m Pas-160mPas, and it is sheared visbreaking index and is adjusted in the scope of 0.1-0.6.

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