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Pigmentary black neutral ink composition

A technology of neutral ink and composition, applied in the direction of ink, household utensils, application, etc., can solve the problems of dependence, inability to use the pen head, poor ink lubricity, etc.

Inactive Publication Date: 2015-07-29
LOTUS STATIONERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the disadvantage of existing neutral ink is that the ink has poor lubricity and cannot be applied to nibs of various materials.
[0008] However, the dependence of the above formula on raw materials makes this field need to further develop various alternative formulas with high quality and low price

Method used

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  • Pigmentary black neutral ink composition
  • Pigmentary black neutral ink composition
  • Pigmentary black neutral ink composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] Add 51.5 grams of deionized water, 0.5 grams of anti-corrosion and anti-fungal agents (Kathon LXE, benzotriazole), 15 grams of ethylene glycol (moisturizing agent), and 0.5 grams of Tween 20 (lubricant), to the belt In a stirring tank with paddle stirring, mix evenly at low speed; under low-speed stirring, slowly add 2.5 grams of xanthan gum (shear thinning viscosity modifier), after adding, increase the stirring speed and stir evenly, and finally add black Pigment paste Bayscript Black 30 grams (pigment paste). After continuing to stir and mix evenly, degassing—filtering—degassing to obtain the product.

Embodiment 2

[0113] Add 50.5 grams of deionized water, 0.5 grams of anti-corrosion and anti-fungal agents (Kathon LXE, benzotriazole) and 15 grams of ethylene glycol, 0.5 grams of Tween 20, and 1.0 grams of OP-50 In the stirred stirring tank, mix evenly at low speed; under low-speed stirring state, slowly add 2.5 grams of xanthan gum, after adding, increase the stirring speed and stir evenly, finally add 30 grams of black pigment paste Bayscript Black. After continuing to stir and mix evenly, degassing—filtering—degassing to obtain the product.

[0114] The formula for calculating the hybrid HLB is as follows:

[0115]

[0116] in,

[0117] HLB (1) is the HLB value of Tween 20, and its HLB value is 16.7; n1% is the weight percent of Tween 20;

[0118] HLB(2) is the HLB value of OP-50, and the HLB value is 18.5; n2% is the weight percentage of OP-20.

[0119] HLB (total) is the combined HLB value; calculated to be 17.8.

Embodiment 3

[0121] Add 52.5 grams of deionized water, 0.5 grams of anti-corrosion and anti-fungal agents (Kathon LXE, benzotriazole) and 15 grams of ethylene glycol, 0.5 grams of Tween 85 (HLB is 11) In a stirring tank, mix evenly at low speed; under low-speed stirring, slowly add 1.5 grams of alkali-swellable acrylic emulsion, after adding, increase the stirring speed and stir evenly, and finally add 30 grams of black pigment paste Bayscript Black. After continuing to stir and mix evenly, degassing—filtering—degassing to obtain the product.

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Abstract

The invention provides a pigmentary black neutral ink composition. The composition comprises, by weight, 20-50 parts of a pigment color paste which is a black pigment color paste, 2-10 parts of a shear thinning viscosity adjusting agent selected from xanthan gum, an alkali swelled acrylic emulsion or modified polysaccharide, 0-5 parts of a viscosity stability adjusting agent, 5-20 parts of a humectant, 0.05-0.5 parts of a corrosion and mildew inhibitor, 14.0-67.95 parts of deionized water, and 0.5-5 parts of a lubricant selected from a polyoxyethylene nonionic surfactant with the HLB value of 10-20, wherein the sum of weights of all above components is 95-100% of the total weight of the composition; and the HLB value of the lubricant is 16-18 if the shear thinning viscosity adjusting agent is xanthan gum, the HLB value of the lubricant is 10-15 if the shear thinning viscosity adjusting agent is the alkali swelled acrylic emulsion, and the HLB value of the lubricant is 15-20 if the shear thinning viscosity adjusting agent is modified polysaccharide.

Description

technical field [0001] The invention relates to an ink and a manufacturing method thereof, in particular to a neutral ink and a manufacturing method thereof. Background technique [0002] Neutral ink pen (gel pen) is a new type of ballpoint pen products. Compared with traditional oily ballpoint pens, although it has not been around for a long time, it has only been on the market for more than ten years. Smooth, light and comfortable writing, clear writing, good color, and writing resistance, light resistance, long shelf life and other characteristics and advantages, so it is quickly accepted by consumers and is now widely used at home and abroad. In addition, since the ink used for neutral ink pens has become more and more diverse, the use of neutral ink pens is becoming more and more extensive. In addition to being mainly used for writing, it can also be used for marking, art, painting, etc., so neutral ink pens are in the leading position. In the continuous and rapid deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16C09D11/17
CPCC09D11/16C09D11/17
Inventor 李玉娟周炜黄小喜
Owner LOTUS STATIONERY