Depletion device for bag in box containing viscous liquid

a technology of depletion device and viscous liquid, which is applied in the direction of rigid containers, containers, packaging, etc., can solve the problems of difficult to achieve performance, high residue of ink, and high viscosity of ink, and achieves the effect of improving viscosity and viscosity

Inactive Publication Date: 2006-06-01
G R ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the liquid contained within the bag is viscous, such performance is difficult to achieve.
Typically during the process of depletion under suction the difficulty in moving liquid out of the extremities of the bag allows the opposing walls of the bag to close together until a point is reached where the bag orifice becomes blocked and no further liquid can be removed.
However a recently developed ink, which has a higher viscosity than those used to date in bag-in-box packaging, was found to have very high residues when used with known depletion devices.

Method used

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  • Depletion device for bag in box containing viscous liquid
  • Depletion device for bag in box containing viscous liquid
  • Depletion device for bag in box containing viscous liquid

Examples

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[0029] Ink samples of varying viscosity were filled into 1000 cc bag-in-box cartridges of identical design except that one group had a flow directing device according to the above described embodiment and a second group had a fitment according to GB-A-2 331 065. The cartridges were allowed to equilibrate overnight in a test environment with a temperature of 10° C. For each ink and fitment variation ink, depletion performance was assessed by carrying out printing tests using a Priport JP5500 digital duplicator (Ricoh Company of Japan). Printing was continued until an ‘out of ink’ signal was given by the printing machine. At this point the cartridge was weighed and the ink residue was calculated by subtracting the average weight for the cartridge packaging. A ‘Pass’ result was recorded when all 10 cartridges within a test group achieved a residue of 5% or less. Results are tabulated below to confirm the superior performance of the present invention.

Depletion Test ResultsFitment AsIn...

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PUM

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Abstract

A depletion device of a bag-in-box container for viscous ink comprises an elongated tube extending into the bag. The tube is preferably cylindrical and has a plurality of holes in its side wall. The holes are arranged in columns so as to define longitudinal ribs in the side wall of the tube. Holes in adjacent columns are offset relative to one another. The depletion device maximizes the amount of ink that can be extracted from the bag by preventing the collapsing bag closing off the depletion device.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to depletion devices for use with bag-in-box type containers for viscous liquids, in particular inks. [0002] It is known to use bag-in-box packaging designs to contain viscous liquids such as ink, especially ink for use in digital duplicators. Such designs offer many benefits in terms of ease of use and protection of the product during transit and storage. Also, it has been possible to achieve designs which enable virtually all the liquid to be depleted from the bag in order to maximize product availability to the user and to minimize issues relating to disposal of the used packaging. When the liquid contained within the bag is viscous, such performance is difficult to achieve. Typically during the process of depletion under suction the difficulty in moving liquid out of the extremities of the bag allows the opposing walls of the bag to close together until a point is reached where the bag orifice becomes blocked and n...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D35/56B65D77/06
CPCB65D77/065B65D2231/004
Inventor SMITH, DEREK JOHN
Owner G R ADVANCED MATERIALS
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