Patent EP0136897A2 successfully refreshed from Google Patents.
EP0136897A2
Expired / Lapsed
EP
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Mixing of printing inks
Assignee: Cherlyn Electronics Ltd
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Filing: 1984-09-28
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Granted: —
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Expires: 2004-09-28
Abstract
Abstract A special purpose microprocessor based system, comprising weighing element, stored printing ink formulation data, and operator interface designed to aid the process of mixing defined colours and shades of printing inks from a small number of constituent basic colour inks. Once the colour and quantity of ink have been entered, the system prompts the operator through the mixing process by displaying constituent basic colour inks and quantity to be added. The actual amount of constituent basic colour ink then added is monitored by the weighing element. Repeated operation for each constituent thus ensures accurate, reproducible and error free mixing to the required formulation.
Inventors
- 👤 David John Swann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:14
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/22; G01G19/34; G01G19/343; B; B01; B01F; B01F33/00; B01F33/80; B01F33/84; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/133; G05D11/134
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
A system for making a selected printing ink formulation from a plurality of printing ink formulations, each said formulation having predetermined proportions of constituent basic colour inks by weight, the system comprising weighing means for weighing the constituent basic colour inks, memory means storing the predetermined proportions of each of the plurality of formulations, user interface means enabling a user to select one of said formulations, and display means for displaying the weight of each constituent basic colour ink to be added to the weighing means and for monitoring the weight addition of each successive constituent basic colour ink, to enable the user to make the selected formulation.
Claim 2
Independent Claim
108 words
A system for making a selected printing ink formulation from a plurality of printing ink formulations, each said formulation having predetermined proportions of constituent basic colour inks by weight, the system comprising weighing means for weighing the constituent basic colour inks, memory means storing the predetermined proportions of each of the plurality of formulations, user interface means enabling a user to select one of said formulations, and display means for displaying the weight of each constituent basic colour ink to be added to the weighing means and for monitoring the weight addition of each successive constituent basic colour ink, to enable the user to make the selected formulation.
Claim 3
Dependent Claim
16 words
A system according to claim 1 and in the form of a single, portable, stand-alone unit.
Claim 4
Dependent Claim
15 words
A system according to claim 2, wherein the user interface means is a keyboard. ·
Claim 5
Dependent Claim
14 words
A system according to claim 1, wherein the weighing means is a load cell.
Claim 6
Dependent Claim
25 words
A system according to claim 3, wherein the ink formulations stored in the memory means correspond to the PANTONE (Registered Trade Mark) colour matching system.
Claim 7
Dependent Claim
172 words
A system according to claim 5, wherein the user interface means includes three function keys and the display means includes an ink constituent display panel showing constituent basic colour inks of the PANTONE colour matching system, a first of the function keys being operative to enable a desired PANTONE number to be entered in the keyboard, a second of the function keys being operative to enable a desired weight of the formulation to be entered on the keyboard and a third of the keys being operative to cause the successive colour constituent basic colour inks to be illuminated on the constituent display panel, the illumination of each constituent ink on the display panel being accompanied by an indication on the display means of the weight of that constituent basic colour ink to be added to the weighing means, whereby as each constituent basic colour ink is added to the weighing means the displayed amount to be added correspondingly decreases until the displayed amount to be added shows zero on the display means.
Claim 8
Dependent Claim
40 words
A system according to claim 6, wherein the display means indicate the weight of any constituent basic colour ink to be removed, if more constituent ink is added than is required for the desired formulation and the desired weight thereof.
Claim 9
Independent Claim
102 words
A method of making a selected printing ink formulation from a plurality of printing ink formulations, each of which has predetermined proportions of constituent basic colour inks by weight, the formulations and their predetermined proportions being held in memory means, the method comprising selecting one of the formulations on user interface means, noting on display means the constituent basic colour inks to be added and their respective weights, and adding the successive constituent basic colour inks to weighing means whilst the weight addition of each successive constituent basic colour ink is monitored by the display means, thereby to make the selected formulation.
Claim 10
Independent Claim
102 words
A method of making a selected printing ink formulation from a plurality of printing ink formulations, each of which has predetermined proportions of constituent basic colour inks by weight, the formulations and their predetermined proportions being held in memory means, the method comprising selecting one of the formulations on user interface means, noting on display means the constituent basic colour inks to be added and their respective weights, and adding the successive constituent basic colour inks to weighing means whilst the weight addition of each successive constituent basic colour ink is monitored by the display means, thereby to make the selected formulation.
Claim 11
Dependent Claim
29 words
A method according to claim 8, wherein the user interface means, the weighing means, the display means and the memory means are incorporated in a single, portable, stand-alone unit.
References Cited (Backward Citations)
No citation records indexed.
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