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Single-component biodegradable printing ink for plastic printing and preparation method thereof

A biodegradable plastic, one-component technology, applied in the field of printing ink, can solve the problems of difficult biodegradation, organic solvent pollution, heavy metal pollution, etc., and achieve the effect of wide application range and strong bonding

Inactive Publication Date: 2020-05-22
JIANGMEN PROUDLY WATER SOLUBLE PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When conventional printing inks are printed on the surface of biodegradable PVA plastics and bio-based modified plastics, the ink adhesion after being placed in an environment of normal temperature and high humidity (15-30°C, 90-98% RH) for 4-24 hours Reduced, causing the plastic printed products to be prone to ink shedding when they are rubbed and peeled off by foreign objects or external forces, which seriously affects the normal use of plastic printed products. It is important to focus on research
[0004] In summary, there is no special printing ink for biodegradable PVA plastics and bio-based modified plastics in the prior art, and the existing conventional printing inks have poor adhesion to biodegradable PVA plastics and bio-based modified plastics, and Conventional printing inks have defects such as heavy metal pollution, organic solvent pollution, and difficulty in biodegradation. Therefore, the current technical problem that needs to be solved urgently is how to prepare a new type of environmentally friendly printing ink for biodegradable PVA plastics and bio-based modified plastics. By adjusting the components and proportions of the special ink, while improving its adhesion on the surface of biodegradable PVA plastics and bio-based modified plastics, it can also be used for printed products of biodegradable PVA plastics and bio-based modified plastics. Whole material biodegradation provides a pathway for

Method used

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  • Single-component biodegradable printing ink for plastic printing and preparation method thereof
  • Single-component biodegradable printing ink for plastic printing and preparation method thereof
  • Single-component biodegradable printing ink for plastic printing and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0049] A second aspect of the present invention provides a method for preparing the above-mentioned one-component biodegradable plastic printing ink, which includes the following steps:

[0050] (1) Dissolution of film-forming agent and linking resin: add water to the dissolution kettle, add film-forming agent under stirring, add linking resin and continue stirring until the linking resin is completely dissolved, cool the obtained mixed solution and discharge , the filtrate obtained after filtration obtains solution A after natural cooling;

[0051] (2) Mixing of other components: Add colorant and remaining preparation raw materials to solution A, pre-disperse and mix the resulting mixture with a disperser to obtain mixed solution B;

[0052] (3) Sand milling of the mixed solution: put the mixed solution B in a sand mill and add a solvent for sanding, and filter the obtained mixed solution to obtain the single-component biodegradable plastic printing ink.

[0053] Further, in...

Embodiment 1

[0066] A sample of environmentally friendly printing ink dedicated to biodegradable PVA plastics and bio-based modified plastics 1

[0067] 1) Dissolution of film-forming agent and linking resin: add 480g of water to the dissolution tank, and add 15g of N,N-dimethylformamide and 5g of polypropylene glycol (molecular weight: 200) under stirring at a speed of 350rpm , then after adding 70g of PVA resin (specification 088-05), 20g of PVA resin (specification 088-08) and 10g of PVA resin (specification 088-20), after the rotation speed is 400rpm and continuous stirring for 30min, in the dissolution tank Heat the resulting mixture with hot oil in the jacket, keep a constant temperature of 95°C, stir at a speed of 800rpm for 30min, then stir at a speed of 350rpm for 3h, take a sample through a scraper and visually check that there are no solid particles, and immediately close the clamp Heating the jacket, opening the jacket circulating cooling water system, cooling the obtained mixe...

Embodiment 2

[0072] A sample of environmentally friendly printing ink dedicated to biodegradable PVA plastics and bio-based modified plastics 2

[0073] 1) Dissolution of the film-forming agent and the linking resin: add 400g of water to the dissolving tank, and add 5g of N,N-dimethylformamide and 25g of N-ethylpyrrolidone under the stirring state of 350rpm, and then After adding 100g of PVA resin (specification 088-05), continue stirring at a speed of 400rpm for 30 minutes, then heat the mixture with hot oil in the jacket of the dissolution kettle, keep the constant temperature at 95°C, and stir at a speed of 800rpm After 30 minutes, stir at a speed of 350rpm for 3 hours, take a sample through a scraper and visually check that there are no solid particles, immediately turn off the jacket heating, turn on the jacket circulating cooling water system, and cool the resulting mixed solution to 30°C before entering the diaphragm pump. After filtering with a filter membrane with a pore size of 4...

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Abstract

The invention belongs to the technical field of printing ink, and particularly relates to single-component biodegradable printing ink for plastic printing and a preparation method thereof. The printing ink has the performance of being completely dissolved in water and also has the complete biodegradability. The printing ink is prepared from the following raw materials in parts by weight: 100 partsof vehicle resin, 5-40 parts of a film-forming aid, 5-40 parts of pigment, 2-30 parts of a pigment dispersing agent and 150-1600 parts of a solvent, wherein the vehicle resin is PVA resin. By reasonably selecting, regulating and controlling the film-forming aid, the pigment dispersing agent and a functional assistant, the phenomena of rough pattern lines, fluffing, excessive oil and the like during printing can be remarkably avoided while the adhesive force and the anti-sticking performance of the printing ink are not influenced, and the printing quality is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of printing ink, and in particular relates to a single-component biodegradable plastic printing ink and a preparation method. Background technique [0002] With the increasingly stringent environmental protection requirements, the advantages of biodegradable PVA plastics and bio-based modified plastics are prominent. Compared with ordinary plastics, biodegradable PVA plastics and bio-based modified plastics have good transparency, antistatic properties, and oil resistance. , organic solvent resistance and printability, and more importantly, biodegradable PVA plastics and bio-based modified plastics are biodegradable and environmentally friendly. Therefore, printed products of biodegradable PVA plastics and bio-based modified plastics are widely used Widely used in food packaging, building materials, medicine, cosmetics and other industries. [0003] The main materials or modified fillers of biodegradable PV...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/106C09D11/033C09D11/03
CPCC09D11/03C09D11/033C09D11/106
Inventor 李先笔莫雄勋
Owner JIANGMEN PROUDLY WATER SOLUBLE PLASTIC CO LTD
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