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Neutral ink and its preparation method

A neutral ink, ink technology, applied in ink, household appliances, applications, etc., can solve the problems of large difference in viscosity measurement results, low scrap rate, small difference, etc.

Inactive Publication Date: 2011-04-27
上海乐美文具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, due to the relatively backward processing equipment and processing tools, in order to be easy to manufacture and take into account the cost problem, the lead brass material that is the same as the oil-based pen head is used to manufacture the neutral nib, but the lead brass is compatible with the existing neutral ink. not good
[0005] Since most domestic nib production uses automatic instrument lathes to process lead brass nibs, due to factors such as equipment and knives, it is difficult for the nibs produced by this method to achieve consistent ink output when using existing neutral inks. sex
However, the existing neutral ink relies on imports, and its viscosity, consistency, surface tension, etc. are all fixed, and even some imported inks must require stainless steel (iron) or nickel-nickel-nickel copper nibs in terms of quality, so that the quality can be guaranteed.
[0006] Therefore, the disadvantage of existing neutral ink is that it cannot meet the needs of various nibs, and causes the problem of high scrap rate
The disadvantage of this method is: due to the error of different viscometers, the viscosity measurement results are very different, and the information cannot be provided accurately in the matching experiment of the nib. It can only be proved by repeated writing tests in the laboratory, which is time-consuming and troublesome.
[0008] In summary, this area lacks a kind of neutral ink suitable for various nibs, with little difference between product batches and low scrap rate, and the preparation method and quality control method of this neutral ink

Method used

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preparation example Construction

[0084] The preparation method of the ink is not particularly limited, as long as it does not limit the purpose of the invention.

[0085] In a specific embodiment of the present invention, it is prepared according to the following method:

[0086] (A) Add deionized water, anti-corrosion and anti-mold agent, moisturizing lubricant and viscosity stabilizing regulator into the container with a paddle stirrer in the order required by the formula measurement; after stirring evenly, slowly add shear Thin the viscosity modifier, and with the increase of viscosity, increase the stirring speed appropriately, when the system is evenly mixed; add the pigment paste, stir and mix for a certain period of time.

[0087] (B) Vacuum defoaming the ink prepared above, then centrifuging and filtering at high speed, collecting the filtrate for secondary defoaming to obtain the finished ink.

[0088] quality control method

[0089] The control index of the quality control method of the present in...

preparation Embodiment 1

[0101] 52.0 grams of deionized water, 0.5 grams of anticorrosion and antifungal agent (KathonLXE, benzotriazole purchased from Rohm and Haas, weight ratio is 1:1)) and 15 grams of ethylene glycol were added to the belt In a stirring tank with paddle stirring, mix evenly; under stirring, slowly add 2.5 grams of xanthan gum + Brunei gum (1:1 weight ratio), after adding, increase the stirring speed and stir evenly, and finally add black Pigment paste BayscriptBlack 30g. After continuing to stir and mix evenly, degassing—filtering—degassing to obtain the product.

[0102] The resulting product was rated as "good" in writing performance and had a shear thinning index of 3.0.

preparation Embodiment 2

[0104] 55.4 grams of deionized water, 0.2 grams of anti-corrosion and anti-fungal agent (Proxel XL2, benzotriazole purchased from United Kingdom Colloids Co., Ltd., the weight ratio of the two is 1:0.5), 10 grams of glycerin and 1.8 grams Add 2-methyl-2-amino-propanol into a stirring tank with paddle stirring, and mix evenly; under stirring, slowly add 4.6 grams of alkali-swellable acrylic acid emulsion (TT-615), after adding, increase After stirring evenly at a stirring speed, finally add 25 grams of Hostafine Blue and 3 grams of Bayscript Magenta into the pigment paste. After continuing to stir and mix evenly, degassing—filtering—degassing to obtain the product.

[0105] The resulting product was rated as "good" in writing performance and had a shear thinning index of 2.8.

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Abstract

A neutral ink composite and its quality control are disclosed. It consists of pigment color paste 20 -50 proportion, shearing thinned viscosity regulator 2-10 proportion, viscosity stabilizer 0-5 proportion, moisture-remaining lubricant 5-20 proportion, antiseptic mildew inhibitor 0.05-0.5 proportion, deionized water 14.5-72.95 proportion. It has less condemnation factor and can be used for various pen tips.

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 Patents(China)
IPC IPC(8): C09D11/16C09D11/18
Inventor 金斗植周炜黄小喜
Owner 上海乐美文具有限公司
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