WRITING, MARKING, AND/OR DRAWING LIQUID FOR CAPILLARY SYSTEMS, ESPECIALLY FOR APPLICATOR IMPLEMENTS HAVING A CAPILLARY SYSTEM, AND APPLICATOR IMPLEMENT

Abstract

A writing, marking and/or drawing liquid, more particularly an aqueous, pigmented and/or water-blendable writing, marking and/or drawing liquid, is provided for capillary systems, more particularly for applicator implements having a capillary system. The liquid has a viscosity of less than 40 mPas, more particularly less than 10 mPas (Brookfield, 20 C., cone-plate CPE-40) and includes an aqueous pigment preparation, a binder, a base, and a dispersing wetting agent. The dispersing wetting agent includes an aqueous solution of a modified polymer having groups with pigment affinity. An applicator implement in which a writing, marking or drawing liquid of this kind is used is also provided.

Claims

1. A writing, marking and/or drawing liquid or an aqueous, pigmented and/or water-blendable writing, marking and/or drawing liquid, for capillary systems or for applicator implements having a capillary system, the liquid comprising: a viscosity of less than 40 mPas (Brookfield, 20 C., cone-plate CPE-40); an aqueous pigment preparation; a binder; a base; and a dispersing wetting agent including an aqueous solution of a modified polymer having groups with pigment affinity.

2. The writing, marking and/or drawing liquid according to claim 1, wherein said viscosity is less than 10 mPas (Brookfield, 20 C., cone-plate CPE-40).

3. The writing, marking and/or drawing liquid according to claim 1, wherein said pigment preparation is present in a concentration of 1 to 30 wt %.

4. The writing, marking and/or drawing liquid according to claim 3, wherein said pigment preparation is present in a concentration of 1 to 25 wt %.

5. The writing, marking and/or drawing liquid according to claim 1, wherein said pigment preparation has a solids content of between 30 and 60 wt %.

6. The writing, marking and/or drawing liquid according to claim 1, wherein said pigment preparation includes at least one of organic or inorganic pigments.

7. The writing, marking and/or drawing liquid according to claim 1, wherein said binder is at least one of a water-soluble resin or a polymeric dispersion selected from at least one of the group of modified, low molecular mass maleate resins or a polymeric dispersion selected from the group of styrene-acrylic resins or a saturated polyester resin.

8. The writing, marking and/or drawing liquid according to claim 1, wherein said binder is present in a concentration of 1 to 30 wt %.

9. The writing, marking and/or drawing liquid according to claim 8, wherein said binder is present in a concentration of 2 to 25 wt %.

10. The writing, marking and/or drawing liquid according to claim 1, wherein said base includes an amine or at least one of monoethanolamine or triethanolamine.

11. The writing, marking and/or drawing liquid according to claim 1, wherein said base is present in a concentration of 0.5 to 20.0 wt %.

12. The writing, marking and/or drawing liquid according to claim 11, wherein said base is present in a concentration of 0.5 to 15.0 wt %.

13. The writing, marking and/or drawing liquid according to claim 1, wherein said dispersing wetting agent is present in a concentration of 0.2 to 10.0 wt %.

14. The writing, marking and/or drawing liquid according to claim 13, wherein said dispersing wetting agent is present in a concentration of 0.2 to 4.0 wt %.

15. The writing, marking and/or drawing liquid according to claim 1, which further comprises at least one of a sugar or sugar alcohol.

16. The writing, marking and/or drawing liquid according to claim 15, wherein said sugar or sugar alcohol is at least one of fructose, glucose, mannose, invert sugar, sucrose, sorbitol, xylitol or mannitol.

17. The writing, marking and/or drawing liquid according to claim 15, wherein said sugar or sugar alcohol is present in a concentration of 0.5 to 12 wt %.

18. The writing, marking and/or drawing liquid according to claim 1, which further comprises a preservative.

19. The writing, marking and/or drawing liquid according to claim 18, wherein said preservative is present in a concentration of not more than 1.5 wt %.

20. An applicator implement or writing, marking or drawing implement, comprising: a writing, marking or drawing tip formed of a capillary material; a reservoir formed of a capillary material; and a liquid according to claim 1 for at least one of writing, marking or drawing, said liquid being disposed in said reservoir.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0046] The FIGURE of the drawing is a longitudinal-sectional view of a capillary applicator implement.

DETAILED DESCRIPTION OF THE INVENTION

[0047] Referring now in detail to the single FIGURE of the drawing, there is seen an applicator implement which is substantially pen-shaped and has a shaft 1 in which a reservoir 2 made of a capillary material, or a fiber reservoir of low density, such as a polyester fiber reservoir, for example, is disposed. The front end of the pen carries a writing tip 3 made of a capillary material, or a fiber tip, which at its rear end is in communication with and/or projects into the fiber reservoir 2.

[0048] The manufacture of the writing, marking and/or drawing liquid takes place predominantly in mixing tanks, in which the constituents of the writing, marking and/or drawing liquid are added. In this case, all the while, stirring tools provide for intensive commixing and sufficiently uniform distribution. The resultant writing, marking and/or drawing liquid is subsequently introduced into the capillary-material reservoir 2 of the above-described writing implement.

[0049] The tests were carried out by using the applicator implement to apply the writing, marking and/or drawing liquid onto various substrates, including watercolor paper and Bristol board. After a short initial drying time of at least 1 minute, the drawn line produced was treated by using a further applicator implement, in the present case a wet brush. The drawn line was subsequently evaluated in relation in particular to its water-blendability.

[0050] Set out below are five example formulations of writing, marking and/or drawing liquids. The values in the example formulations in percent by weight are based in each case on the total mass of the writing, marking and/or drawing liquid.

Example 1

[0051] Example formulation of a black, pigmented, water-blendable writing, marking and/or drawing liquid having a viscosity of 4.0 mPas (Brookfield, 20 C., cone-plate CPE-40) and a pH of 8.2:

TABLE-US-00001 Hostatint Black GR 500 .sup.2) 16.5 wt % Erkamar 4170 .sup.8) 10.0 wt % Monoethanolamine 2.9 wt % Tego Dispers 750 W .sup.1) 2.0 wt % Sorbitol 0.8 wt % Acticide SR 7034 .sup.12) 0.5 wt % Acticide LT2 .sup.13) 0.3 wt % Water, demineralized 67.0 wt %

[0052] In the manufacture of the writing, marking and/or drawing liquid according to example 1, the solid resin Erkamar 4170 is converted into a water-soluble form using monoethanolamine in an aqueous medium, with gentle heating. A writing, marking and/or drawing liquid having a composition corresponding to example 1 has a low fraction of sugar alcohol and a high fraction of aqueous pigment preparation. It is possible as a result to generate particularly intensely colored lines, and to do so in particular after use of watercolor techniques as well.

Example 2

[0053] Example formulation of a yellow, pigmented, water-blendable marking liquid having a viscosity of 3.5 mPas (Brookfield, 20 C., cone-plate CPE-40) and a pH of 8.8:

TABLE-US-00002 Colanyl Yellow 5 GX 500 .sup.3) 16.5 wt % Rokrapol 7095 .sup.9) 10.0 wt % Monoethanolamine 1.6 wt % Triethanolamine 1.6 wt % Tego Dispers 750 W .sup.1) 0.5 wt % Glucose 1.5 wt % Acticide SR 7034 .sup.12) 0.8 wt % Water, demineralized 67.5 wt %

[0054] In this case again, the solid resin Rokrapol 7095, during the manufacture of the writing, marking and/or drawing liquid, is converted into a water-soluble form using monoethanolamine in an aqueous medium, with gentle heating. A writing, marking and/or drawing liquid having a composition corresponding to example 2 has the lowest dispersing wetting agent content; nevertheless, it is possible to achieve sufficient distribution and stabilization of the pigments and an acceptable storage stability. The addition of triethanolamine brings about an improvement in particular in the long-term water-paintability.

Example 3

[0055] Example formulation of a red, pigmented, water-blendable marking liquid having a viscosity of 5.5 mPas (Brookfield, 20 C., cone-plate CPE-40) and a pH of 8.3:

TABLE-US-00003 Hostafine Red HF3S .sup.5) 10.0 wt % Hostafine Magenta E .sup.5) 5.0 wt % Joncryl HPD 496 MEA .sup.10) 16.0 wt % Triethanolamine 1.0 wt % Tego Dispers 750 W .sup.1) 1.0 wt % Sucrose 10.0 wt % Acticide SR 7034 .sup.12) 0.5 wt % Acticide LT2 .sup.13) 0.3 wt % Water, demineralized 56.2 wt %

[0056] The binder used in the present case is a 35% solution of resin (Joncryl HPD 496 MEA.sup.10)), and so the binder content is only 5.6% solids. A writing, marking and/or drawing liquid having a composition corresponding to example 3 also has an increased sugar fraction relative to the preceding examples. The composition exhibits good storage stability and water-blendability.

Example 4

[0057] Example formulation of a blue, pigmented, water-blendable marking liquid having a viscosity of 3.9 mPas (Brookfield, 20 C., cone-plate CPE-40) and a pH of 8.9:

TABLE-US-00004 Hostafine Blue B2G .sup.5) 3.8 wt % Hostafine Magenta E .sup.5) 3.7 wt % Joncryl HPD 496 MEA .sup.10) 16.0 wt % Monoethanolamine 3.0 wt % Tego Dispers 750 W .sup.1) 2.0 wt % Fructose 6.0 wt % Acticide LT2 .sup.13) 0.8 wt % Water, demineralized 64.7 wt %

[0058] A writing, marking and/or drawing liquid having a composition corresponding to example 4 contains a comparatively low fraction of pigments, but continues to exhibit good water-blendability and also good storage stability.

Example 5

[0059] Example formulation of a violet, pigmented, water-blendable marking liquid having a viscosity of 5.5 mPas (Brookfield, 20 C., cone-plate CPE-40) and a pH of 7.8:

TABLE-US-00005 Colanyl Violet RL 500 .sup.3) 7.9 wt % Joncryl HPD 396 MEA .sup.11) 20.0 wt % Monoethanolamine 0.5 wt % Tego Dispers 750 W .sup.1) 2.0 wt % Glucose 10.0 wt % Acticide SR 7034 .sup.12) 0.8 wt % Water, demineralized 58.8 wt %

[0060] A writing, marking and/or drawing liquid having a composition corresponding to example 5 has by comparison the smallest fraction of a base, in the present case, monoethanolamine, which, nevertheless, is sufficient to establish a slightly alkaline pH so as to stabilize the liquid ink. Furthermore, the comparatively high sugar fraction in combination with the binder employed, a 35% solution of resin with a binder content of about 6.4% solids, ensures good water-blendability.

MANUFACTURERS

[0061] 1) Evonik Industries AG, Goldschmidtstr. 100, 45127 Essen [0062] 2), 3), 4), 5) Clariant AG, Industriepark Hchst, 65926 Frankfurt [0063] 6) Heubach GmbH, Heubachstrae 7, 38685 Langelsheim [0064] 7) Lanxess AG, Kennedyplatz 1, 50569 Cologne [0065] 8), 9) Robert Kraemer GmbH & Co. KG, Zum roten Hahn 9, 26180 Rastede [0066] 10), 11) BASF AG, BASF BV Resins and Additives PO. Box 390, 844AJ Heerenveen, Netherlands [0067] 12), 13) Thor GmbH, Landwehrstrae 1, 67346 Speyer, Germany