Unlock instant, AI-driven research and patent intelligence for your innovation.

Neutral writing ink

A kind of neutral ink and ink technology, applied in the field of ink, can solve the problems of not meeting the technical requirements, corroding the metal nib, expensive price, etc., and achieve the effect of unimpeded writing and good adhesion

Inactive Publication Date: 2005-01-26
WENZHOU CITY TIANHENG WRITING PEN & INK RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no matching neutral ink on the market in China. Imported neutral ink is expensive, 150,000 yuan per ton
The gel pens produced in China all use imported neutral inks. Domestic manufacturers, such as the trial products of Tianjin Ink Factory, do not meet the technical requirements. The defect is that the metal nib corrodes, leaks when writing, and has a short storage time. etc. Therefore, the current situation that domestically produced gel pens must use imported gel inks has not yet been broken through.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Neutral writing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1, neutral black ink

[0008] 1. Reagent selection: black ink slurry, choose domestic famous brand black ink slurry containing 4.5% petroleum carbon black (HBB) colloid slurry; thickener choose sodium bentonite, such as water-based BP188 type; viscosity regulator choose non-ionic type Surfactant polyethylene glycol; PH value stabilizer selects sodium hydroxide; sodium acetate produced after the reaction of sodium hydroxide and glacial acetic acid has buffering, neutralizing and antiseptic effects. The fungicide is selected from butanediol or 1.3 butanediol.

[0009] 2, composition formula: the black ink slurry that contains petroleum carbon black 4.5% weight is 65% weight, and sodium bentonite is 10% weight, and polyethylene glycol is 0.5% weight, and glacial acetic acid is 0.1% weight, and sodium hydroxide is 0.2 % by weight, the right amount of butylene glycol, and deionized water are 23% by weight.

[0010] 3. Process and related parameters:

[0011] ...

Embodiment 2

[0015] Embodiment 2, the formula composition of red neutral ink is as follows: the red ink slurry 53% weight that contains acid scarlet 4.5% weight, sodium bentonite 15% weight, macrogol 0.8% weight, glacial acetic acid 0.5% weight, hydroxide 0.8% by weight of sodium, an appropriate amount of butanediol, and 30% by weight of deionized water.

Embodiment 3

[0016] Embodiment 3, the formula composition of blue color neutral ink is as follows: the blue ink slurry that contains 0.6% weight acid blue+1.2% weight acid green+2.7% weight direct blue is 64% weight, and sodium bentonite is 13% weight, 0.5% by weight of polyethylene glycol, 0.2% by weight of glacial acetic acid, 0.5% by weight of sodium hydroxide, an appropriate amount of butylene glycol, and 20% by weight of deionized water.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A neutral ink based on existing ink is prepared through proportionally adding thickening agent, (10-15 wt.), viscosity regulator, (0.5-1 wt.%), pH value stabilizer (0.3-1.3 wt.%), and purified water (20-25 wt.%) to existing ink. Its pH value is equal to 7. Its advantages are no corrosion to pen tip, smooth writing, and long quality guarantee period.

Description

technical field [0001] The invention relates to an ink, in particular to a neutral ink matched with a gel pen for writing. Background technique [0002] The gel pen is a new type of pen that has just emerged in the world. Because it has many superior properties, it has a broad market prospect. But at present, there is no matching neutral ink on the market in China, and the imported neutral ink is expensive, 150,000 yuan per ton. The gel pens produced in China all use imported neutral inks. Domestic manufacturers, such as the trial products of Tianjin Ink Factory, do not meet the technical requirements. The defect is that the metal nib corrodes, leaks when writing, and has a short storage time. Etc. Therefore, the gel pen of domestic production will use the present situation of the gel ink of import, still not breaking through. Contents of the invention [0003] The purpose of the present invention is to aim at the existing defect of domestic neutral ink, and trial-produc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/16
Inventor 单汉定
Owner WENZHOU CITY TIANHENG WRITING PEN & INK RES INST