Technology for printing water-based ink on PET (polyethylene terephthalate)

A water-based ink and process technology, applied in printing, ink, copying/marking methods, etc., can solve problems such as blurred patterns, inaccurate color registration, and affecting printing effects

Active Publication Date: 2019-01-18
江苏尚珩达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the current environmentally friendly inks have greatly improved environmental performance compared with traditional inks, they still cannot achieve satisfactory results in terms of substrate adhesion and friction coefficient stability.
[0004] Ordinary printing film is made of PVC, and its heating temperature is not high. During the production process, it will deform if it exceeds 60°C, which will seriously affect the printing effect, resulting in inaccurate color registration and blurred patterns; while the drying temperature of water-based ink needs to be above 100°C. cannot match each other

Method used

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  • Technology for printing water-based ink on PET (polyethylene terephthalate)
  • Technology for printing water-based ink on PET (polyethylene terephthalate)
  • Technology for printing water-based ink on PET (polyethylene terephthalate)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of water-based ink PET transfer printing technique, described technique comprises the steps:

[0027] (1) Put 8 parts of montmorillonite, 5 parts of barium sulfate, and 40 parts of water into the dispersion kettle in sequence, and stir at a speed of 200rpm, then add 10 parts of water-based color masterbatch, stir and mix evenly at a speed of 200rpm, and then use Three-roll mill grinding to a particle size of less than 500nm to obtain an inorganic premix;

[0028] (2) At room temperature, the inorganic premix prepared in step (1), 30 parts of polyvinyl alcohol resin, 8 parts of glycerin rosin ester, 30 parts of sodium hydroxypropyl cellulose, 5 parts of polydimethylsiloxane Stir at a speed of 300rpm for 30min, then filter and discharge to obtain the water-based ink.

[0029] (3) on the PET polyester film, first coat one deck release agent, then use the water-based ink printing pattern, dry;

[0030] (4) Spread the thermal transfer film obtained in step (3) on th...

Embodiment 2

[0032] A kind of water-based ink PET transfer printing technique, described technique comprises the steps:

[0033] (1) Add 2 parts of montmorillonite, 10 parts of barium sulfate, and 35 parts of water into the dispersion kettle in sequence, and stir at a speed of 100rpm, then add 5 parts of water-based color masterbatch, stir and mix evenly at a speed of 150rpm, and then use Three-roll mill grinding to a particle size of less than 500nm to obtain an inorganic premix;

[0034] (2) At room temperature, the inorganic premix prepared in step (1), 30 parts of polyvinyl alcohol resin, 6 parts of glycerin rosin ester, 40 parts of hydroxypropyl cellulose sodium, 1.5 parts of polydimethylsiloxane Stir at a speed of 200rpm for 40min, then filter and discharge to obtain the water-based ink.

[0035] (3) on the PET polyester film, first coat one deck release agent, then use the water-based ink printing pattern, dry;

[0036] (4) Spread the thermal transfer film obtained in step (3) on ...

Embodiment 3

[0038] A kind of water-based ink PET transfer printing technique, described technique comprises the steps:

[0039] (1) Put 6 parts of montmorillonite, 8 parts of barium sulfate, and 40 parts of water into the dispersing kettle in turn, stir at a speed of 150rpm, then add 8 parts of water-based color masterbatch, stir and mix evenly at a speed of 150rpm, and then use Three-roll mill grinding to a particle size of less than 500nm to obtain an inorganic premix;

[0040] (2) At room temperature, the inorganic premix prepared in step (1), 25 parts of polyvinyl alcohol resin, 2 parts of glycerin rosin ester, 50 parts of hydroxypropyl cellulose sodium, 4 parts of polydimethylsiloxane Stir at a speed of 250rpm for 50min, then filter and discharge to obtain the water-based ink.

[0041] (3) on the PET polyester film, first coat one deck release agent, then use the water-based ink printing pattern, dry;

[0042] (4) Spread the thermal transfer film obtained in step (3) on the substra...

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Abstract

The invention discloses a technology of transfer printing of water-based ink on PET (polyethylene terephthalate). The technology comprises the following steps: (1) preparation of the water-based ink;(2) printing of the water-based ink on the PET; (3) transfer printing, wherein the water-based ink comprises the following raw materials in parts by weight: 5-10 parts of water-based color master batches, 10-30 parts of polyvinyl alcohol resin, 2-8 parts of montmorillonite, 5-10 parts of barium sulfate, 2-8 parts of ester gum, 30-50 parts of hydroxy propyl cellulose, 1.5-5 parts of polydimethylsiloxane and 35-40 parts of water. In the technology, the water-based color master batches are adopted, and the water is taken as a dispersion medium, so that the release of an organic solvent is reduced,and the technology is an environmentally-friendly printing technology.

Description

technical field [0001] The invention relates to a printing process, in particular to a transfer printing process using water-based ink. Background technique [0002] With the continuous improvement of people's quality of life and living environment, people's requirements for energy-saving, low-consumption, non-toxic, non-polluting, and easily degradable products are getting higher and higher, and printing ink is one of the most polluting materials. Solvent-based printing inks contain a large number of toxic and harmful chemicals, including heavy metals, residual solvents, organic volatiles, and polycyclic aromatic hydrocarbons. These toxic and harmful substances can send chemical transfer, so that people are contaminated with toluene, xylene, lead, mercury, arsenic, chromium and other harmful substances in life, work and study. [0003] At present, environmentally friendly inks represented by water-based inks, alcohol-soluble inks, and UV inks are increasingly favored by pr...

Claims

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Application Information

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IPC IPC(8): B41M5/035C09D11/033C09D11/14C09D11/106C09D11/03
CPCB41M5/0353C09D11/03C09D11/033C09D11/106C09D11/14
Inventor 严育冬
Owner 江苏尚珩达科技有限公司
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