Ink composition for inkjet printing by the continuous deflected ink jet technique notably for safety markings

a technology of inkjet printing and composition, applied in the field of ink composition, can solve the problems of inability to erase the use-by date, particularly difficult to solve, etc., and achieve the effect of improving the solubility

Inactive Publication Date: 2020-01-09
MARKEM IMAJE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The ink composition achieves unerasable markings on polyolefin substrates within a short time after printing, maintaining resistance to solvent-based erasure over an extended period, addressing the limitations of prior art by using a unique combination of a binding resin, plasticizer, and anthraquinone dye.

Problems solved by technology

The particular case of products for which the origin and traceability of the production should be guaranteed, poses a problem which is particularly difficult to solve.
In particular, the use-by date should not be able to be erased, for example by spraying with a solvent, so as to not be modified by unscrupulous actors for fraudulent purposes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

examples

[0146]The following ink compositions were prepared by mixing the products mentioned in the Table I below, in the indicated proportions.

[0147]The ink compositions prepared are ink compositions according to the invention (Compositions of Examples No. 1, No. 2, and No. 3), and a comparative ink composition not compliant with the invention (composition of the Comparative Example).

[0148]The viscosities and the conductivities of the inks obtained are also given in Table I below.

TABLE IConstituentsComparativeExampleExampleExample(percentage by weight)ExampleNo. 1No. 2No. 3Methyl-ethyl ketone89.178.9579.4579.45Cellulosic resin (cellulose5.43.234.54.5acetobutyrate CAB553.04)Polyurethane resin 12.93(Unithane ® 672S65)Tributyl citrate11.5Carbamic resin 11.5(Resamine ® HF480)Solvent Black 33.93.453.23.2Solvent blue 1040.50.480.450.45Tetrabutylannnnoniunn1.10.960.90.9hexafluorophosphateViscosity (mPa · s)4.84.64.34.6Conductivity (μS / cm)844840802770CAB553.04 manufactured by Eastman ®.Unithane ® 6...

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PUM

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Abstract

An ink composition for printing by the continuous deflected ink jet technique, liquid at room temperature, including a method for marking or printing on a substrate, support or object using said ink composition, and a substrate, support, or object provided with a marking obtained by drying, and / or absorption of said ink composition, in which the ink composition includes a solvent including one or several organic solvent compounds, and optionally water; a binder comprising at least one binding resin; at least one plasticizer of said binding resin; at least one dye which belongs to the family of anthraquinone dyes; and optionally, at least one or several other dyes and / or pigments which do not belong to the family of anthraquinone dyes.

Description

TECHNICAL FIELD[0001]The invention relates to an ink composition for which the properties are particularly well adapted to the marking or to the printing with a liquid jet, and most particularly to the marking by a deviated, deflected continuous ink jet.[0002]The ink composition according to the invention may be used for marking of substrates, supports and objects of all kinds.[0003]The ink composition according to the invention is notably suitable for marking substrates, supports, and objects in organic polymers, in particular in thermoplastic polymers («plastic materials»), such as polyolefins like polyethylenes (PE) or polypropylenes (PP), or further poly(ethylene terephthalate) (PET). The ink composition according to the invention is particularly suitable for marking bottles, flasks or stoppers in organic polymers, notably in polyolefins, such as polyethylenes or polypropylenes.[0004]The ink composition according to the invention gives the possibility of obtaining markings which...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): C09D11/328C09D11/52C09D11/14C09D11/38C08J7/04
CPCC08J2475/04C09D11/328C08J7/0427C09D11/52C09D11/14C08J2401/14C09D11/38C08J2323/06C09D11/32C09D11/36
InventorINSULAIRE, MICKAELLEGUILLOT-PATRIQUE, GREGORY
OwnerMARKEM IMAJE HLDG