CZ296589B6 - Ink exhibiting increased resistance to drying - Google Patents

Abstract

In the present invention, there is disclosed an ink exhibiting increased resistance to drying containing 0.1 to 25 percent by weight of organic dyestuff or pigment, 0.1 to 40 percent by weight of glycols or polyethylene glycols having molecular weight in the range of from about 100 to about 6000, 0.1 to 20 percent by weight of glycol ethers having boiling point above 150 degC and further 15 percent by weight of adjuvants and additives of the biocide, defoamer, spreading agent, film-forming agent or separator type, whereby the balance to 100 percent by weight is water or lower aliphatic alcohols or mixtures thereof. The ink according to the present invention does not dry in a writing means uncovered writing tip for a period up to 60 days.

Description

Technical field

The invention relates to ink intended for the filling of writing devices such as pens, markers, rollers, liners, markers, highlighters and the like.

BACKGROUND OF THE INVENTION

The currently used inks are characterized by the fact that they bear the application properties to which their development is directed. This means that they are washable from textile materials, washable from leather, not wipable from non-porous materials, abrasion resistant and others. These main application properties of the inks have some negative properties which have been addressed by the present invention. It is a desiccation removal, especially in alcohol-based inks, which consist of a mixture of lower aliphatic alcohols, pigments and other ingredients, but also in water-based inks containing organic dye and other ingredients (examples of water-based inks are described in CZ 289 465 "Washable ink, easily washable from leather").

A disadvantage of these known writing fluids is that the writing means must have a protected writing tip to prevent it from drying out. If the tip is not fitted on the tip for a long time, it will dry relatively quickly and will reduce the functionality of the whole product, after a longer period of its complete depreciation.

SUMMARY OF THE INVENTION

This drawback removes the ink according to the invention, with increased drying resistance.

SUMMARY OF THE INVENTION The ink consists of 0.1 to 25% by weight of an organic dye or pigment, 0.1 to 40% by weight of glycols or polyethylene glycols having a molecular weight of 100 to 6000, 0.1 to 20% by weight of glycol ethers having a boiling point. above 150 ° C; and up to 15% by weight of biocide adjuvants, defoamers, flow agents, film formers or separators, the remainder being up to 100% by weight being water or lower aliphatic alcohols or mixtures thereof.

The inks of the present invention in the writing compositions into which they are filled do not dry even upon prolonged removal of the guard, unless written with the composition, thereby greatly enhancing the performance of the articles. The increased resistance to drying is mainly due to the use of combinations of polyethylene glycols and high-boiling glycol ethers which form a layer on the surface of the ink level and prevent evaporation of the lower-boiling solvents and the gradual drying of the ink in the pen tip. The ink according to the invention lasts up to 60 days without drying in the exposed tip.

DETAILED DESCRIPTION OF THE INVENTION

It is to be understood that the specific embodiments of the invention described and illustrated below are presented by way of illustration and not by way of limitation of the examples to the examples. Those skilled in the art will find, or will be able to ascertain, using routine experimentation, more or less equivalents to specific embodiments of the invention specifically described herein. These equivalents will also be included within the scope of the following claims.

-1 CZ 296589 B6

Example 1 - non-drying ink, black shade

Acid blue 9 (according to Color Index)

Acid orange 7 (according to Color Index)

Acid red 1 (according to Color Index)

Sodium dioctylsulfosuccinate

A water-polyglycol ether solution of a mixture of quaternary ammonium salts

Propylene glycol phenyl ether

Tetraethylene glycol

Water

Example 2 - non-drying ink, shade of red

Acid red 18 (according to Color Index)

Acid red 1 (according to Color Index)

Food yellow 4 (by Color Index)

Sodium dioctylsulfosuccinate

A water-polyglycol ether solution of a mixture of quaternary ammonium salts

Propylene glycol phenyl ether

Tetraethylene glycol

Water

Example 3 - non-drying ink, blue o

Acid red 52 (according to Color Index)

Acid blue 9 (according to Color Index)

Sodium dioctylsulfosuccinate

A water-polyglycol ether solution of a mixture of quaternary ammonium salts

Propylene glycol phenyl ether

Tetraethylene glycol

Water

Example 4 - non-drying ink, shade of red

Solvent red 160 (according to Color Index)

Caprylic and capric acid triglyceride

Propylene glycol phenyl ether n-propanol

2.22% by weight.

4.00% by weight.

1.78% by weight.

0.02% by weight.

0.27% by weight.

0.44% by weight.

26.87% by weight.

64.40% by weight.

1.22% by weight.

0.94% by weight.

0.47% by weight.

0.02% by weight.

0.28% by weight.

0.47% by weight.

26.39% by weight.

70.21% by weight.

0.43% by weight.

0.77% by weight.

0.02% by weight.

0.29% by weight.

0.48% by weight.

26.78% by weight.

71.23% by weight.

4.00% by weight.

0.50% by weight.

2.00% by weight, up to 100% by weight.

-2GB 296589 B6

Example 5 - non-drying ink, shade of blue

Basic blue 26 (according to Color Index)

Caprylic and capric acid triglyceride

Propylene glycol phenyl ether n-propanol butanol

4.00 wt.

0.50 wt.

1.50 wt.

50.00 wt. % to 100 wt.

Example 6 - non-drying ink, shade of blue

Solvent blue 44 (according to Color Index)

Basic violet 1 (according to Color Index) Caprylic and capric acid triglyceride Tripropylene glycol n-butyl ether n-propanol

Example 7 - non-drying ink, shade of green

Mixture Solvent yellow 83: 1, Solvent blue 44 (according to Color Index) Caprylic and capric acid triglyceride Propylene glycol phenyl ether n-propanol butanol

Example 8 - non-drying ink, black shade

Mixture Basic Violet 10, Basic Orange 59, Basic Violet 3, Basic Blue 26 (according to Color Index)

Caprylic and capric acid triglyceride

Propylene glycol phenyl ether n-propanol

Industrial applicability

7.00 wt.

1.00 wt.

2.50 wt.

0.50 wt. % to 100 wt.

8.00 wt.

3.20 wt.

1.80 wt.

47.00 wt. % to 100 wt.

9.00 wt.

2.70 wt.

3.30 wt. % to 100 wt.

The ink with increased drying resistance according to the invention is particularly useful as a filling for writing instruments such as pens, markers, rollers, liners, markers, highlighters and the like.

Claims (1)

PATENT CLAIMS 1. An ink with improved drying resistance, characterized in that it consists of 0.1 to 25% by weight of an organic dye or pigment, 0.1 to 40% by weight of glycols or polyethylene glycols having a molecular weight of 100 to 6000, 0.1 to 25% by weight. 20% by weight of glycol ethers with a boiling point above 150 ° C and up to 15% by weight of biocides, defoamers, leveling agents, film formers or separators, the balance being up to 100% by weight of water or lower aliphatic alcohols, or mixtures thereof.