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Low-field nuclear magnetic resonant technology method for designing water-based printing ink formula

A technology of low-field nuclear magnetic resonance and printing ink, which is applied in the fields of nuclear magnetic resonance analysis, material analysis through resonance, ink, etc., can solve problems such as large labor force, complicated experiments, and large consumption of chemical reagents, so as to speed up the research and development process, The operation process is simple and convenient

Inactive Publication Date: 2019-11-12
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the formulation development process of water-based printing inks currently on the market, the formulation adjustment is mainly based on experimental experience. In this process, a large number of orthogonal experiments are required, which has low efficiency, requires a lot of labor, complicated experiments, and consumes a large amount of chemical reagents. and a series of questions

Method used

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  • Low-field nuclear magnetic resonant technology method for designing water-based printing ink formula
  • Low-field nuclear magnetic resonant technology method for designing water-based printing ink formula
  • Low-field nuclear magnetic resonant technology method for designing water-based printing ink formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a method for screening direct-injection dispersed printing ink humectants based on low-field nuclear magnetic resonance technology, and the specific implementation steps are as follows:

[0047] (1) prepare different mass fractions of isopropyl alcohol, ethylene glycol, diethylene glycol, glycerin and propylene glycol aqueous solutions, and the concentration of each humectant aqueous solution is respectively 5wt%, 10wt%, 15wt%, 20wt%, 25wt% and 30wt% . Accurately weigh 1.5g of humectant aqueous solution and place it in a constant temperature (60°C) drying oven for 210min.

[0048] (2) Using PQ001 low-field nuclear magnetic resonance to conduct low-field nuclear magnetic analysis on the different moisturizing agent aqueous solutions in step (1). Using the CPMG pulse sequence method to collect nuclear magnetic resonance echo signals and measure the transverse relaxation time T of the humectant aqueous solution 2 , the parameters are set as: 90-d...

Embodiment 2

[0053] This example provides a method for screening direct-injection disperse printing inks based on low-field nuclear magnetic resonance technology. Through dynamic monitoring of water state distribution and moisturizing performance in direct-injection disperse printing inks, direct-injection disperse inks with the best water retention performance are screened out. printing ink. The specific implementation steps are as follows:

[0054] (1) Configure five kinds of direct-jet disperse printing inks, which are named R1, R2, R3, R4, and R5 respectively. Accurately weigh 1.5g of the prepared direct-jet dispersion printing ink sample, weigh 4 parts of each sample, and then place 4 parts of each sample in a constant temperature (60°C) drying oven for 0, 70, 140 and 210min .

[0055] (2) Use PQ001 low-field nuclear magnetic resonance to conduct low-field nuclear magnetic analysis on the direct-jet dispersion printing inks with different formulations in step (1). Using the CPMG pu...

Embodiment 3

[0059] This embodiment provides a method for screening direct-injection dispersion printing ink based on low-field nuclear magnetic resonance technology. According to the detection results, the relationship between the content and state of water in the ink and the outline definition of the printing pattern is deduced. Further, it is possible to screen out inks that can obtain higher-definition printing patterns, and the specific implementation steps are as follows:

[0060] (1) Configure direct-jet disperse printing inks with different formulas, named R-1, R-2, R-3, R-4, R-5, Y-1, Y-2, Y-3, Y- 4. Y-5, B-1, B-2, B-3, B-4, B-5, K-1, K-2, K-3, K-4, K-5. Accurately weigh 1.5 g of prepared direct-jet dispersion printing inks of different formulations.

[0061] (2) Use PQ001 low-field nuclear magnetic resonance to conduct low-field nuclear magnetic analysis on the direct-injection dispersion printing inks with different formulations in step (1). Use the CPMG pulse sequence method ...

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Abstract

The invention relates to application of a low-field nuclear magnetic resonant technology in design of a water-based printing ink formula, water-based printing ink screening or moisturizer screening. Water-based printing ink or a moisturizer is rapidly screened according to inversion data of transverse relaxation time (T2) of low-field nuclear magnetic resonant (LF-NMR), the distribution state of water (free water, association water and combination water) in the water-based printing ink or the moisturizer can be detected by LF-NMR, rapid and real-time detection can be performed, the water-basedprinting ink with excellent quality can be preferably selected, and design and research of the water-based printing ink are facilitated. The distribution state of the water in the printing ink and printing pattern cleanness also can be combined to control the state of water in the ink, and the cleanness of the printing pattern is ensured. In summary, the high-quality water-based printing ink is designed and researched by the low-field nuclear magnetic resonant technology.

Description

technical field [0001] The invention relates to the field of printing inks, in particular to a method for designing water-based printing ink formulas based on low-field nuclear magnetic resonance technology. Background technique [0002] Inkjet printing technology has many advantages, such as low investment in equipment, simple process, small footprint, convenient operation, no washing after printing, no sewage discharge, green environmental protection, fine patterns, high authenticity rate, and is very suitable for commercialization. The inkjet printing process is the process of accurately printing the designed pattern on the fiber fabric through an inkjet printer, and then baking the ink at a high temperature to better absorb or adhere to the fiber fabric. There are two key technologies in this process: 1. Preparation of color paste; 2. Preparation of printing ink. Printing ink has proper viscosity, pH, electrical conductivity, surface tension and other physical propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08G01N11/00D06P1/00D06P5/30
CPCG01N24/085G01N11/00D06P1/0032D06P5/30C09D11/38G01R33/448G01R33/445Y02A90/30G01N13/00G01N24/08
Inventor 陈国强高承永邢铁玲
Owner SUZHOU UNIV
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