CS273756B1 - Writing liquid for writing means - Google Patents

Abstract

The invention concerns the composition of ink based on water base, which is marked by high lubricity, which is provided by addition of polyalkylene glycols. It is suitable for all kinds of writing media where contact with the writing surface and transfer of the writing fluids is provided by a rotating ball in a socket of various material, most often plastic or metal. The ink is composed of l to 10 % by weight colour, 0 to 40 % by weight glycols, 0.05 to 10 % by weight polyalkylene glycols, 1 to 5 % anticorrosive agents and residue to 100 % is formed by water.

Description

SUMMARY OF THE INVENTION The present invention provides a writing fluid for writing devices known as ball or tube markers.

These markers are characterized in that a metal or ceramic ball is housed in a conical or tubular sleeve of various metals or plastics.

The prior art ball pen inks are mostly low viscosity aqueous inks produced by dissolution in water. soluble dyes in an aqueous solution of a water-soluble organic solvent. Anti-rotting agents or surfactants are added to the solution as necessary. When writing with these inks, high friction occurs when the ball is rotated between the ball and the ball bed in the sleeve. This has resulted in the scratching of the marker, the hacking of piemo. With prolonged use, the ball bed is blackened, resulting in a higher trigger of ink and font breakage and subsequent dropping of the ball with deterioration of the writing device. It is necessary to reduce the frictional resistance when writing to avoid this phenomenon. Some birds of the fluid are dealt with by adding various oleaginous or surfactants, which, however, have an adverse effect, reducing the surface tension of the writing fluid, and severely breaking the trace of the writing.

The above disadvantages are overcome by the baking fluid according to the invention.

The essence of the invention is that the writing fluid is composed of 1 to 10 wt. % dyes,

0 to 40 wt. % of glycols or mixtures thereof, 0.01 to 10 wt. % of polyalkylene glycol or mixtures thereof, ¹ preferably polyethylene or polypropylene glycol, 1 to 5% anticorrosive agents, the remainder to 100% being water. The addition of polyalkylene glycol significantly reduces the friction between the ball and the bed and removes the above ink deficiencies.

Oako dye can be used natural or synthetic dyes! which are soluble in water, preferably free of additives * in the form of inorganic salts.

Oako viceaocnó alcohols are most commonly used alone or a combination of glycols.

Of the polyalkylene glycols, it is preferable to use polyethylene glycols which are characterized by excellent solubility in aqueous systems, high intermediate and non-corrosive effects.

The writing fluid of the present invention provides a number of advantages. Polyalkylene glycols provide a reduction in friction when writing, which has a positive effect on the flow of writing fluid through the marker, creating a smooth writing feeling. At the same time, ee does not black out the ball bed and greatly extends the life of the pen and the quality of the questions.

The invention is illustrated by the following examples.

Example 1

AZ08ARVIV0 - 3.00

DIETYLENGLYCOL - 30,00 POLYETHYLENGLYCOL 300 - 10,00 DEION. WATER - 57, 'OO 100.00 Example 2 TRIFENYLMETANQVfi Dyes - 5,00 Ethylene glycol - 10,00 POLYETYTENGLYCOL 300 - 5,00 POLYETHYLENGLYCOL 600 - 5,00 DEION. WATER - 75,00

Parts Parts Parts Parts Parts Parts Parts Parts Parts Parts

You, too

100, (00 parts

AND·.

fi · ~ -ί

CS 273756 Bl

Example 3 ΑΖ0BARVIVO PROPYLENGLYCOL POLYPROPYLENEGLYKQL DEXO. WATER - 10.00 parts - 20/00 parts - 5.00 parts - 65.00 parts · I Ol · ··· 100,00 parts Example 4 AZOBARVIVO - 5/00 parts POLYETHYLENGLYCOL 400 - 30.00 parts DEZON. WATER - 65.00 parts 100,00 parts Example 5 TRIFENYL METHANE DYE - 3,00 parts Ethylene glycol - 30/00 parts DIETYLENGLYCOL - 8/00 parts POLYETHYLENGLYCOL 300 - 2/00 parts BENZTRIAZOL - 0/1 part OEION, WATER - 56/9 part

100/00 parts

Claims (1)

Dye-solvent based ink composition ink containing from 1 to 10% by weight of dyes / up to 40% by weight of glycols or salts thereof (0/01 to 10% by weight) of polyalkylene glycols or their ansai / s preferably polyethylene or polypropylene glycol (1 to 5% anticorrosive agents), the remainder to 100% being water.