KR20010025283A - composite of high glossy water ink used for writing implements - Google Patents

Abstract

PURPOSE: A water ink composition for writing utensils capable of exhibiting high gloss effect when discharged out from the tip of writing utensils during writing is provided which is improved in lubricity and maintains a favorable writing feeling for a long period of time. CONSTITUTION: This high gloss water ink composition comprises 1 to 20% by weight of a coloring material of a pigment and a dye, 1 to 20% by weight of a metal pigment having a particle diameter of 25 to 80 micrometer, 5 to 30% by weight of a moisturizing agent, 0.15 to 2% by weight of a pH controller, 0.2 to 1.0% by weight of a rust inhibitor, 0.2 to 1.0% by weight of an antiseptic and 0.1 to 10% by weight of a thickener based on 100% by weight of the water ink composition.

Description

Composition of high glossy water ink for writing implements

The present invention relates to a composition of a high gloss water-based ink that the aqueous ink flowing out when writing in the state filled in writing instruments can produce a high gloss effect.

Glossy water-based ink in which the ink flowing out of the tip of the writing instrument has a gloss effect during writing is already used in the writing instrument. Such a glossy aqueous ink was prepared to contain a composition made of a metal powder that reflects light or a gloss for reflecting light, and the gloss is expressed by the metal powder flowing out during writing. In this case, the metal powder has been used in the manufacture of water-based inks for polishing using a small particle size, for example, a puljo pigment and an aluminum powder having a particle size of 25 μm or less in order to prevent the writing process by blocking the space of the tip. Since the particles of the powder are too small, the gloss after writing is very weak, and the sedimentation phenomenon of the metal powder in the ink becomes a problem in the light-time stability of the ink, and in the case of aluminum powder, oxidation by contact with air There was a problem such as the risk of the emergence of a big problem and room for improvement.

In addition, the ballpoint pen using such an ink has been generally used as an ink receiving tube made of transparent polypropylene or polyethylene, but due to the fine metal powder pigment, the metal powder on the inner surface of the pipe due to the electrostatic attraction of the metal powder is used. A part of the pigment adhered to the inner diameter and was not discharged together with the aqueous ink, and there was a problem such that the inner diameter wall was attached and became dirty.

The present invention aims to solve the problems of the prior art and also to exhibit higher gloss than conventional aqueous ink.

The object of the present invention is to use a metal powder pigment and a puljo pigment with a large particle diameter, in order to take advantage of high gloss, to limit the colorant of the pigment and dye powder to 1 to 20% by weight based on the solid content, the viscosity of the ink BL-type viscometer It is sufficiently achieved by providing an aqueous ink composition having a viscosity of 200 to 8000 m.Pas (cps) at a temperature of 25 ° C.

In addition, the present invention is to set the flow distance of the ball and the ball seat of the tip to 100 ± 30㎛ to prevent the cause of writing impaired due to agglomeration in the tip can not cope with the particle size of the raw material contained in the ink prepared This is achieved.

Hereinafter, an embodiment according to the present invention will be described in detail.

The composition of the high-gloss water-based ink of the present invention is a colorant expressing color and a thickener for preventing sedimentation over time, a moisturizing agent for inhibiting drying of ink and drying at the seat of the tip, and stable water solubility and spillage retention of the aqueous ink. Preservatives, rust inhibitors, surfactants, water-soluble steam, pH adjusters, etc. are mixed with dl additives.

In the above, the colorant contains a pulzo pigment having an average particle diameter of 25 to 80 µm, and the pigment pigment having color by coating a colorant such as carbon oxide and carbon black and organic pigment on the surface of the mica plate and carbon oxide and iron oxide. This suitably having a particle diameter of 25 to 80 mu m is used, and the content is most preferably blended at 1-20% by weight with respect to 100% by weight of the aqueous ink.

Metallic pigments are metal pigments that have a concealment effect by aluminum treatment and coating of metal components on the thickness of about 0.25 ~ 4㎛ thickness of so-called plate-like structure of glass plate and magnetic plate inside. It is possible to use any of the non-ripping and ripping types selected from copper alloys, aluminum, copper, zinc, etc., treated with higher saturated fatty acids having 16 to 22 carbon atoms or salts thereof, as the case may be.

Pigments and dyes as colorants in the present invention can be used as long as they are generally used, but specific examples thereof include CI PIGMENT YELLOW-1,3,12,65,74,83,93,120,154, CI PIGMENT RED-2,5, 9,49,53: 1, organic pigments such as CI PIGMENT ORANGE-17,36,40, CI PIGMENT GREEN-7,36, inorganic pigments such as carbon black, nitric oxide, yellow iron oxide, titanium yellow, ultramarine blue Fluorescent pigments, etc., in which acrylic resin particles are colored with a dye that emits fluorescence, are suitable. In addition, known acid dyes, direct dyes, and basic dyes used in the related art can also be used, and the content thereof is preferably 1 to 20% by weight based on solid content to achieve the most suitable high gloss effect.

In the present invention, the thickener used to prevent the sedimentation of the ink over time is a guar gum (Gu-a Gum), Rocastbean-Gum, Chiantan gum (a type of aqueous gum used as a dispersion stabilizer and thickener) Xanthan-Gum), karaki male gum, and saxinoglycan are suitable. The amount of the medium used is the BL-type viscometer, the viscosity of which is 200 ~ 8000m.Pas (cps) at the temperature of 25 ℃ and maintains the most suitable viscosity, and the content is 100% by weight of the aqueous ink. It is suitable to ship at 0.1-10% by weight.

Examples of the moisturizer used to suppress the drying of the ink of the present invention and particularly the drying at the pen line include ethylene glycol (Glycole), propylene glycol (Glycole), and ethylene glycol (Diethylene-Glycole). ), Selected from refractory water-soluble organic solvents such as glycerin, 2-pyrrolidone and dimethylsulfoxide can be used alone or in combination of two or more thereof. As for the usage-amount, 5-30 weight% is suitable with respect to ink total weight%.

In the ink composition of the present invention, a small amount of additives such as a preservative, a rust preventive agent, a surfactant, a water-soluble steamer, and a pH adjuster may be added as necessary.

As the ballpoint pen is generally used, the high-gloss water-soluble ink cannot be written out, and thus it is impossible to write. Therefore, the ball and ball seat flow distance (so-called, clearance) is considered in consideration of the village relationship between the ball and the seat surface formed at the tip of the ballpoint pen. Can be used in the range of 100 ± 30 μm.

It will be described in more detail through the following examples.

Example: 100% by weight of high gloss water-soluble ink

Karakinan gum: 0.45 wt%

Preservative: 0.3 wt%

Antirust agent: 0.3% of stock

Surfactant: 0.2 wt%

Metal powder pigment with particle diameter 60 ± 30㎛: 5% by weight

Yellow pigment: 10 wt% based on solid content

Griserin: 10% by weight

Ionized water: remaining weight%

As a result of stirring the above-mentioned compounding components and measuring by BL viscometer Rhoda NO3, the high gloss ink composition of viscosity 4500CPS gold was obtained at 25 degreeC.

Example 2 Based on 100% by weight of high-gloss water-soluble ink

Guar gum: 0.2

Locust Bean Sword: 0.2

Preservative: 0.3

Antirust Agent: 0.3

Surfactant: 0.2

Metal powder pigment with particle diameter 50 ± 20㎛: 5

Green pigment: 10% by weight of solids

Griserin: 10

Ionized Water: Balance

As a result of stirring the above-mentioned compounding components and measuring with BL-type viscometer Rhoda NO3, the high gloss ink composition of viscosity 3500CPS green was obtained at 25 degreeC.

Example 3: 100 wt% of the high gloss water-soluble ink

Xanthan Gum: 0.1

Locust Bean Sword: 0.35

Preservative: 0.3

Antirust Agent: 0.3

Surfactant: 0.2

Metal powder pigment with particle diameter 40 ± 20㎛: 5

Red pigment: 10 wt% based on solid content

Ethylene Glycol: 20% by weight

Ionized Water: Balance

As a result of stirring the above-mentioned compounding components and measuring with BL-type viscometer Rhoda NO3, the high gloss ink composition of viscosity 2800CPS red was obtained at 25 degreeC.

Comparative Example 1

Karakinan Sword: 0.45

Preservative: 0.3

Antirust Agent: 0.3

Surfactant: 0.2

Metal powder pigments with a particle diameter of 10 ± 5㎛: 5

Yellow pigment: 10 wt% based on solid content

Griserin: 10% by weight

Ionized Water: Balance

As a result of stirring the above-mentioned compounding components and measuring with BL-type viscometer rod NO3, the high gloss ink composition of viscosity 4500CPS green was obtained at 25 degreeC.

Comparative Example 2

Starch (aka: Dexrine) 10% by weight

Preservative: 0.3

Antirust Agent: 0.3

Surfactant: 0.2

Metal powder pigment with particle size 40 ± 10㎛: 5

Yellow pigment: 10 wt% based on solid content

Griserin: 10

Ionized Water: Balance

As a result of stirring the above-mentioned compounding components and measuring with BL-type viscometer ROD NO3, the gloss ink composition of viscosity 400CPS gold was obtained at 25 degreeC.

Comparative Example 3

Karakinan Sword: 0.45

Preservative: 0.3

Antirust Agent: 0.3

Surfactant: 0.2

Metal powder pigments with a particle diameter of 10 ± 5㎛: 5

Yellow powder: 30 wt% based on solid content

Griserin: 10

Ionized Water: Balance

As a result of stirring the above-mentioned compounding components and measuring with BL-type viscometer Rhoda NO3, the high gloss ink composition of viscosity 2800CPS gold was obtained at 25 degreeC.

In Comparative Example 1, the particle size of the brightener was used in Comparative Example 1, and the comparative example 2 had a lower viscosity than the standard value of the present invention. This is an example of excessive use of solids.

result

1) Glossiness: The above examples and comparative examples were handwritten to 20 students, and then the glossiness was expressed by the following symbols. The results are summarized in Table 1 below.

(Symbol)

◎ Very good gloss and texture

□ Excellent gloss and texture

△ Very low gloss and texture

× No gloss or drift at all.

2) Ink preservation safety: Ink was put into a glass bottle of about 50ml, and each "Example" and "Comparative Example" were put in, and the change of appearance was observed at 50 ± 5 ℃ for one month under the following standards. The results are summarized.

◎ Change of appearance of ink (no precipitation and separation of water and ink layer)

□ Change in appearance of ink (precipitation and separation of water and ink layer slightly)

△ Appearance change of ink (remarkable ink precipitation phenomenon)

× Appearance change of ink (sedimentation and separation from water completely separated)

3) ink handwriting

After measuring the clearance (ball flow distance) using a metal pen attachment tip of 0.7 mm Ball made in Japan (pilot), which is commercially available in the ink of the above example (approx. Press the ball with a pin and measure the distance as long as the ball is pressed with a dial gauge. The handwriting was performed using a ball flow distance of about 100 μm, and the handwriting performance was compared with Table 3 below.

As can be seen from the above results, the ink of the present invention is not only excellent in gloss, but also a high gloss water-based ink having a very good anti-settling effect due to long-term preservation of the ink by maintaining an appropriate viscosity. Set the flow distance of the ball used in the tip of the gloss to a wider range to provide the effect of high gloss enough to show a high gloss effect in the handwriting after writing has the advantage of raising children's interest in learning and creative activities. .

Claims (4)

In the composition of the aqueous ink flowing out of the tip of the writing instrument, the aqueous ink is 100% by weight, and the pigment and dye for high gloss are blended in an amount of 1 to 20% by weight based on the total weight of the ink, the composition of the ink 1 to 20% by weight of metal powder pigment having particles having a particle diameter of 25 to 80 μm, 5 to 30% by weight of moisturizer, 0.15 to 2% by weight of pH adjuster, 0.2 to 1.0% of antiseptic 0.2 to 1.0% by weight, thickener High gloss aqueous ink composition, characterized in that it comprises 0.1 to 10% by weight The high gloss aqueous ink composition according to claim 1, wherein the puljoin and metal powder pigment having a particle size of 25 to 80 µm in the composition of the aqueous ink is any one of copper alloy, aluminum, copper, and zinc. The viscosity of the ink is 200-8000 m.Pas (cps) at a temperature of 25 DEG C with a BL type viscometer in order to prevent sedimentation of the pearlescent pigments and aluminum powder having a high gloss particle size in the composition of the aqueous ink. High gloss water-based ink composition The high gloss water-based ink composition according to claim 1, wherein a distance between the ball and the ball seat formed in the writing instrument tip is in a range of 100 ± 30 μm.