Pharmaceutical ink: Difference between revisions
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'''Pharmaceutical ink''' is an ingestible form of [[water]]-based ink used on most medicine [[ |
'''Pharmaceutical ink''' is an ingestible form of [[water]]-based ink used on most medicine [[Tablet (pharmacy)|pill]]s to indicate which drug it is, and/or how many [[milligram]]s the pill contains. |
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== History == |
== History == |
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The first U.S. patent for pharmaceutical inks was filed on 28 June 1966, and its method involved [[ethanol|ethyl alcohol]], [[shellac]], [[titanium dioxide]] and [[propylene glycol]]. |
The first U.S. patent for pharmaceutical inks was filed on 28 June 1966, and its method involved [[ethanol|ethyl alcohol]], [[shellac]], [[titanium dioxide]] and [[propylene glycol]]. |
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Most pharmaceutical inks since the early 1990s eliminate ethyl alcohol in |
Most pharmaceutical inks since the early 1990s eliminate ethyl alcohol in favour of faster ink drying times, and may include [[methanol|methyl alcohol]] and [[isopropanol]] in addition to the traditional ingredients titanium dioxide and propylene glycol. |
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Aluminium foils is generally used in different form of lamination with PE and PVC,that is called blister packaging. aluminium foil is greasy because of processing the aluminium in to foil and during the making it in foil form,oil is rinsed on aluminium sheet for pressing it and making in to thin foil,there fore during printing that creates the problem to set the inks,to get it repaired the foil surface,the aluminium foil is washed with NC or shellac,after washing the aluminium foil can be printed using rotogravure printing process,flexographic printing process and offset printing process. |
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special non carcinogenic printing inks used to print on aluminum foil and all the ingredients of printing inks should not be contend any harmful pigments,resins and solvents. |
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specially organic pigment is used to prepare the printing inks. |
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== External links == |
== External links == |
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* [http://www.freepatentsonline.com/3258347.pdf U.S. Patent no. 3,258,347] - original pharmaceutical ink patent |
* [http://www.freepatentsonline.com/3258347.pdf U.S. Patent no. 3,258,347] - original pharmaceutical ink patent |
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* [http://www.patentstorm.us/patents/5006362-description.html U.S. Patent no. 5,006,362, filed 9 April 1991] - eliminates ethanol in favor of faster ink drying times |
* [https://web.archive.org/web/20070929083016/http://www.patentstorm.us/patents/5006362-description.html U.S. Patent no. 5,006,362, filed 9 April 1991] - eliminates ethanol in favor of faster ink drying times |
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== See also == |
== See also == |
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*[[Pharmaceutical glaze]] |
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[[Category: |
[[Category:Inks]] |
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[[Category:Pharmacy]] |
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Latest revision as of 06:23, 17 July 2022
Pharmaceutical ink is an ingestible form of water-based ink used on most medicine pills to indicate which drug it is, and/or how many milligrams the pill contains.
History
[edit]The first U.S. patent for pharmaceutical inks was filed on 28 June 1966, and its method involved ethyl alcohol, shellac, titanium dioxide and propylene glycol.
Most pharmaceutical inks since the early 1990s eliminate ethyl alcohol in favour of faster ink drying times, and may include methyl alcohol and isopropanol in addition to the traditional ingredients titanium dioxide and propylene glycol.
External links
[edit]- U.S. Patent no. 3,258,347 - original pharmaceutical ink patent
- U.S. Patent no. 5,006,362, filed 9 April 1991 - eliminates ethanol in favor of faster ink drying times