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Ballpoint pen ink and ballpoint pens using the ink

A ballpoint pen and ink technology, applied in the direction of ballpoint pen, ink, pen tip, etc., can solve the problems of easy movement of ink film, lack of smooth writing feeling, low fluidity of ink, etc.

Inactive Publication Date: 2011-12-21
PENTEL KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the ink has a low viscosity, the ink film formed between the ball and the ball receiver is prone to movement under the writing pressure, and the ink film is easily dislodged due to the ball directly colliding with the ball receiver during writing. The resulting rough feeling is transferred to the hand, so writing lacks a smooth feel
[0004] On the other hand, when the viscosity of the ink is increased by adding resin, etc. and the thickness of the ink film formed between the ball and the ball receiver is increased, although a smooth writing feeling may be obtained, due to the low fluidity of the ink, The rotation of the ball is subject to greater resistance, thus giving a laborious writing experience

Method used

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  • Ballpoint pen ink and ballpoint pens using the ink
  • Ballpoint pen ink and ballpoint pens using the ink
  • Ballpoint pen ink and ballpoint pens using the ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0126] Examples of actual preparation and evaluation of ballpoint pens according to the present invention will be described below. The following inks A to W were prepared. Incidentally, in each ink, when "part" is simply used, it means "part by weight". Inks A to Q are subject inks of the present invention, and inks R to W are not subject inks of the present invention.

[0127] (ink A)

[0128]

[0129]

[0130] Of the above ingredients, the entire amount of diethylene glycol monomethyl ether, the amount of ethylene glycol monoisopropyl ether, and the entire amount of S-LEC BL-1 were stirred, mixed and dissolved at 70°C, and the resulting solution was cooled to room temperature. The entire amount of Printex 35 was added thereto, and the mixture was subjected to 10 passes through Kyno-Mill (bead mill, manufactured by Shinmaru Enterprises Co., Ltd.) using zirconia beads with a diameter of 0.3 mm to obtain a black slurry.

[0131]Each remaining material was added to the...

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PUM

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Abstract

The present invention provides a ballpoint pen ink that ensures a very light and smooth writing feeling even when a large writing pressure is applied. An ink for a ballpoint pen, comprising: a colorant; a liquid medium; polyoxyethylene castor oil and / or polyoxyethylene hardened castor oil and their derivatives; and a compound selected from the following group, or two or more Mixture of compounds: monoalkyl ether phosphate, polyoxyethylene alkyl ether phosphate, dialkyl ether phosphate, polyoxyethylene dialkyl ether phosphate, trialkyl ether phosphate, polyethylene oxide Trialkyl ether phosphates and their neutralization products and solutions.

Description

technical field [0001] The invention relates to a ballpoint pen ink containing lubricating components. The present invention also relates to a ballpoint pen using the ink and having a ballpoint pen tip including at least one ball as a writing member and a ball supporting portion for supporting the ball so that the ball protrudes partially from the opening at the front end. technical background [0002] In order to obtain ballpoint pen inks that ensure a soft, smooth writing feel, efforts have been made to adjust ink viscosity or to add materials that can impart lubricity to inks. [0003] When the viscosity of the ink is reduced by adjusting the added amount of the thickener, since the resistance to the rotation of the ball during writing is reduced, this is beneficial to produce a soft writing feeling during writing. However, since the ink has a low viscosity, the ink film formed between the ball and the ball receiver is prone to movement under the writing pressure, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/18
CPCC09D11/18B43K1/08B43K7/00
Inventor 大坪绫高岸郁夫安池清德纪村浩希关根孝司
Owner PENTEL KK
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