Transfer printing ink with release function

An ink and functional technology, applied in inks, household appliances, applications, etc., can solve the problems of unclear pattern printing, insufficient color density and vividness, and inability to peel off, and achieve excellent printability and heat resistance. Production printing process, the effect of saving production costs

Inactive Publication Date: 2014-02-26
BAUHINIA VARIEGATA INK ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transfer printing process can be divided into cold transfer printing and thermal transfer printing according to the transfer temperature. The traditional transfer film printing process is PET film / / release agent / / transfer printing ink / / glue. It plays the role of peeling off from the PET film. If there is no release agent, the PET film / / transfer printing ink / / glue process will occur, and the ink layer and the PET film layer will be peeled off during the transfer. The ink layer and the PET film will not be clean The adhesion of the layer is too good and cannot be peeled off, or the abnormal force is too large when peeling off
[0003] Although the traditional transfer film printing process is relatively mature now, its printing sequence is slightly complicated, and the release agent and glue take up two printing sequences (some need to apply glue twice to get three printing sequences), and the general six-color The printing machine can only leave four printing sequences for color overprinting, so more complex patterns need to be printed on the machine twice to complete. At the same time, there are many transfer film manufacturers and the product competition is extremely fierce. Membrane manufacturers have very urgent requirements for cost reduction
However, if you only save costs from the traditional point of view, it will cause many bad quality problems: reducing the amount of release agent will cause poor peeling during transfer printing; less ink amount will cause insufficient color density and vividness, and the pattern printing will not be clear ;Reducing the amount of glue will cause poor transfer fastness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of transfer printing ink with release function, its composition is as shown in table 1:

[0023] Table 1. Each component of the transfer printing ink of embodiment 1 and its weight percentage

[0024]

[0025]

[0026] The molecular weight of polymethyl methacrylate is 90,000, and the glass transition temperature is 80°C. The preparation method of the transfer printing ink with release function is as follows: first, the resin and a part of the solvent are dispersed and dissolved into a resin liquid, and then the pigment and auxiliary Put the agent into the resin liquid and disperse evenly, then grind it through a sand mill until the fineness is acceptable, then add the remaining solvent, matte powder and wax powder, stir and disperse at high speed for 20 minutes.

Embodiment 2

[0028] A kind of transfer printing ink with release function, its composition is as shown in table 2:

[0029] Table 2. Each component of the transfer printing ink of embodiment 2 and weight percent thereof

[0030]

[0031]

[0032] Among them, the molecular weight of polymethyl methacrylate is 70,000, and the glass transition temperature is 100°C; the molecular weight of polybutyl methacrylate is 50,000, and the glass transition temperature is 60°C. The transfer printing ink can be prepared in the following way: first, disperse and dissolve the resin and a part of the solvent to form a resin liquid, then put the pigment and additives into the resin liquid to disperse evenly, and then grind to a qualified fineness by a sand mill, and then Add the remaining solvent, matte powder and wax powder, stir at high speed and disperse for 20 minutes.

Embodiment 3

[0034] The composition of the transfer printing ink with release function according to this embodiment is shown in Table 3.

[0035] Table 3. Each component of the transfer printing ink of embodiment 3 and weight percent thereof

[0036]

[0037] Among them, the molecular weight of polymethyl methacrylate is 90,000, and the glass transition temperature is 120°C; the molecular weight of polybutyl methacrylate is 70,000, and the glass transition temperature is 75°C. The transfer printing ink can be prepared in the following way: first, disperse and dissolve the resin and a part of the solvent to form a resin liquid, then put the pigment and additives into the resin liquid to disperse evenly, and then grind to a qualified fineness by a sand mill, and then Add the remaining solvent, matte powder and wax powder, stir at high speed and disperse for 20 minutes.

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Abstract

The invention relates to a transfer printing ink with a release function. The transfer printing ink comprises, by weight, 16 to 25% of a polymethacrylate resin, 1.5 to 2.5% of a cellulose acetate resin, 7 to 30% of a pigment, 50 to 62.5% of a mixed solvent, 0 to 2% of an auxiliary agent, 0 to 1% of matt powder and 0 to 2% of wax powder, wherein the mixed solvent is a mixture of two or more selected from the group consisting of ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, toluene, butanone, methyl isobutyl ketone, isopropanol, propylene glycol monomethyl ether and propylene glycol monomethyl ether acetate mixed at any ratio, the auxiliary agent is one or a mixture of more selected from the group consisting of a dispersant, an antistatic agent and an organosilicon leveling agent, the matt powder is gas phase silica, and the wax powder is polymer micro wax powder. The transfer printing ink provided by the invention has all the properties of a traditional transfer printing ink, e.g., pigment concentration, brilliance and good printability and heat resistance, further has excellent release performance and can be used as a release agent in a transfer printing process.

Description

technical field [0001] The invention relates to an ink, in particular to a transfer printing ink with release function. Background technique [0002] Transfer printing technology refers to printing ink on a specific substrate (such as polyethylene terephthalate (PET) film) to make a transfer film, and then passing the patterned transfer film through a certain temperature and pressure. , a process technology that transfers patterns to target substrates (such as gussets, photo frames, furniture facades, stationery plastics, etc.). The transfer printing process can be divided into cold transfer printing and thermal transfer printing according to the transfer temperature. The traditional transfer film printing process is PET film / / release agent / / transfer printing ink / / glue. It plays the role of peeling off from the PET film. If there is no release agent, the PET film / / transfer printing ink / / glue process will occur, and the ink layer and the PET film layer will be peeled off dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/107C09D11/03
Inventor 施泓豪
Owner BAUHINIA VARIEGATA INK ZHEJIANG
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