Neutral ink and ball-point pen containing same

A neutral ink, ballpoint pen technology, applied in ink, household appliances, applications, etc., can solve the problems of lack of anti-leakage neutral ink, damage to the writing performance of the neutral pen, damage to the fluidity of ink discharge, etc., and achieve excellent anti-leakage. performance, excellent low temperature writing performance, not easy to deform the effect

A neutral ink, ballpoint pen technology, applied in ink, household appliances, applications, etc., can solve the problems of lack of anti-leakage neutral ink, damage to the writing performance of the neutral pen, damage to the fluidity of ink discharge, etc., and achieve excellent anti-leakage. performance, excellent low temperature writing performance, not easy to deform the effect

CN109575685AActive Publication Date: 2019-04-05SHANGHAI M&G STATIONERY INC
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  • Neutral ink and ball-point pen containing same
  • Neutral ink and ball-point pen containing same
  • Neutral ink and ball-point pen containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] thickening intermediate preparation

[0054] Add 0.7 parts of triethanolamine to 25 parts of deionized water under stirring, and then add 0.45 parts of acrylic thickener HS1152 and 0.15 parts of polyethylene glycol POLYOX WSR N-80 (number average molecular weight: 200,000). The molecular chain segment of the thickener is gradually opened, the viscosity of the system increases, and the stirring speed is gradually increased until the system is uniformly mixed to obtain a thickening intermediate.

[0055] Color paste preparation

[0056] Add 5.0 parts of 1,3-butanediol and 4.5 parts of polymer dispersant Disperbyk-2012 (40% effective concentration) into 24.0 parts of deionized water, stir evenly, then add 8.0 parts of medium pigment carbon black Orilonte Black 5 After the addition, continue to stir for 2 hours to fully wet the carbon black, transfer the above mixture to a horizontal sand mill filled with 0.3mm diameter zirconium beads, and start circulating grinding. Duri...

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Abstract

The invention provides neutral ink and a ball-point pen containing the same. The neutral ink comprises, by weight, 6.0-10.0 parts of pigments, 1.5-3.0 parts of polymeric dispersants, 0.2-1.0 part of thickening materials, 0.01-0.1 part of lubricants, 5.0-10.0 parts of cosolvents, 10.0-20.0 parts of humectants, 0.1-0.3 part of sterilizing agents, 0.5-2.0 parts of pH (potential of hydrogen) regulators and 53.6-76.7 parts of deionized water. The neutral ink adopts specific thickening materials, has shear thinning and tensile hardening viscosity properties and is good in leak resistance and excellent in low-temperature writing property.

Description

technical field [0001] The invention relates to the field of writing instruments, in particular to a neutral ink and a ballpoint pen containing the neutral ink. Background technique [0002] The ballpoint pen is a writing tool that is commonly used at present. The evaluation of the writing performance of the ballpoint pen involves many items. One of the important tests is the performance test of dripping ink, which simulates the state that the consumer temporarily stops writing and keeps the pen head down during the writing process. (For the push-type ballpoint pen, the tip of the pen is always in a downward state). At this time, it is required that the tip of the pen should not have ink dripping or serious accumulation of ink, that is, ink leakage. The oil-based ink used in oil-based ballpoint pens has a relatively high apparent viscosity, usually above 10Pa·s, and the fluidity of the ink is poor, so generally no ink will flow out from the mouth of the pen head in a static ...

Claims

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Application Information

Patent Timeline
05 Apr 2019
Publication
CN109575685A
IPC
C09D11/18; C09D11/16; C09D11/17
CPC
C09D11/16; C09D11/17; C09D11/18
Inventors
郭亨长; 陈义军