Erasable neutral ink and manufacturing method thereof

A neutral ink, neutral pen technology, applied in ink, home appliances, applications, etc., can solve problems such as poor hand feel, poor writing, blocked pen tips, etc.

Inactive Publication Date: 2015-09-09
LOTUS STATIONERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the friction between the pigment particles and the nib of the erasable neutral ink much larger than that of ordinary neutral ink during the writing process, and the nib wear is also more serious, which leads to poor writing, clogging of the nib, and poor hand feeling. Decreased writing performance

Method used

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  • Erasable neutral ink and manufacturing method thereof
  • Erasable neutral ink and manufacturing method thereof
  • Erasable neutral ink and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0065] The third aspect of the present invention provides a kind of preparation method of erasable neutral ink as described in the present invention, it comprises the steps:

[0066] Provide each component described in the present invention;

[0067] The pigments of the components are dispersed;

[0068] Mix the remaining components evenly to obtain the erasable neutral ink.

[0069] technical effect

[0070] Factors that affect the lubricity of writing include ink viscosity, rheology such as shear thinning, humectants, lubricants, etc. Published patent CN101451037 An erasable neutral ink and its manufacturing method. A moisturizing lubricant is designed in the formula, and ethylene glycol, diethylene glycol, triethylene glycol, glycerin, propylene glycol, polyethylene glycol, polyol and other compositions are selected. . The lubricants described herein are not the above conventional moisturizing lubricants. In order to reduce the frictional resistance during writing, slo...

Embodiment 1

[0087] a) Prepare color paste according to Comparative Example 1. b) 15 grams of deionized water, add 0.8 grams of isomeric alcohol surfactant (XP-90 purchased from BASF, HLB value = 14.5), and add 9.2 grams of oleic acid under stirring to emulsify to a milky white homogeneous liquid; c) Then the remaining 13.3 grams of deionized water, 0.2 grams of anti-corrosion and anti-fungal agent (Proxel XL2, benzotriazole purchased from United Colloids Co., Ltd., the weight ratio of the two is 1:0.5), 2 grams of polycarboxylate Acid sodium salt dispersant (molecular weight 200-2000), 10 grams of ethylene glycol, and 2.0 grams of ammonia water were added to a stirring tank with paddle stirring, and mixed evenly; under stirring, slowly added 2.5 grams of xanthan gum, and the addition was complete After increasing the stirring speed and stirring evenly, finally add the prepared b) and a). Continue to stir and mix evenly, defoaming-filtering-degassing to obtain the product.

Embodiment 2

[0091] a) Prepare color paste according to Comparative Example 1. b) The remaining 28.3 grams of deionized water, 0.2 grams of anti-corrosion and anti-mold agent (Proxel XL2, benzotriazole purchased from United Colloids Co., Ltd., the weight ratio of the two is 1:0.5), 2 grams of poly Carboxylic acid sodium salt dispersant (molecular weight 200-2000), 10 grams of ethylene glycol, 2.0 grams of ammonia water and 10 grams of 2500-mesh talcum powder are added to a stirring tank with paddle stirring, and mixed evenly; under stirring, slowly add After adding 2.5 grams of xanthan gum, increase the stirring speed and stir evenly, then add the prepared pigment slurry at last. Continue to stir and mix evenly, defoaming-filtering-defoaming to obtain the product.

[0092] performance example

[0093](1) The ink sample prepared by the embodiment is equipped with a 640 / 0.4 nib for writing test, and then the sinking amount of the nib ball is measured, so as to analyze the lubricating perfo...

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Abstract

The invention provides an erasable neutral ink composition used for gel ink pens. The composition comprises the following components: (a) 5-40 parts by weight of a pigment; (b) 0.5-5 parts by weight of a dispersant; (c) 1-10 parts by weight of a shear thinning viscosity modifier; (d) 0-5 parts by weight of a stable viscosity regulator; (e) 5-30 parts by weight of a moisturizing agent; (f) 0.2-15 parts by weight of a lubricant; (g) 0.02-0.5 part by weight of an antiseptic and antimildew agent; and (h) 15-85 parts by weight of deionized water. The (a) pigment is selected from resin encapsulated pigments with a dispersion size of 0.1-50 micrometers, and the (f) lubricant is selected from lubricants which control the pen point ball sinkage generated after line drawing and writing by a gel ink pen at 2-5micrometers and the ink producing amount at 0.35-0.45g.

Description

technical field [0001] The invention relates to a neutral ink and a manufacturing method thereof, in particular to an erasable neutral ink and a manufacturing method thereof. Background technique [0002] At present, neutral ink is generally accepted by people because of its excellent writing performance, but it is inevitable that mistakes will occur when writing. Erasable gel pens with pencil-like erasable and re-writing performance and neutral ink performance are neutral inks. The new development direction of ink. [0003] There are also some erasable gel pens on the market, but according to the analysis, there are more or less areas that need to be improved, such as poor writing performance and short storage time. The gel pen product is a ball pen head. Due to the particularity of the coloring substance particles in the erasable neutral ink, the average particle size distribution of the pigment particles is controlled at 0.1-50 microns to achieve a high coloring strength...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D11/18
CPCC09D11/18C09D11/17
Inventor王莉周炜黄小喜
OwnerLOTUS STATIONERY