Process and device for producing an analytical tape for liquid samples

• US 20060002816A1
• Filed: 05/06/2005
• Published: 01/05/2006
• Est. Priority Date: 05/07/2004
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Hoenes, Joachim, Zimmer, Volker, Ruhl, Werner
• Granted Patent: US 8,226,793 B2
• Time in Patent Office: Days
• US Class Current: 422/56
• CPC Class Codes: B01L 2200/12 Specific details about manufacturing devices
• CPC Class Codes: B01L 2300/0812 Bands; Tapes
• CPC Class Codes: B01L 2300/0887 Laminated structure
• CPC Class Codes: B01L 3/505 flexible containers not provided for above
• CPC Class Codes: B31D 1/021 Making adhesive labels having a multilayered structure, e.g. provided on carrier webs
• CPC Class Codes: B31D 1/026 Cutting or perforating B31D1/022 takes precedence
• CPC Class Codes: G01N 2035/00108 Test strips, e.g. paper
• CPC Class Codes: G01N 33/48764 Test tape taken off a spool
• CPC Class Codes: Y10T 156/1089 of discrete laminae to single face of additional lamina
• CPC Class Codes: Y10T 156/1097 Lamina is running length web

Abstract

The invention concerns a process for producing an analytical tape for liquid samples in which a rollable transport tape is provided with test fields that are spaced apart in the direction of the tape for analyzing the liquid samples. A multilayered test label tape is prefabricated from at least a detection film and an adhesive tape and subsequently the test fields are transferred as self-adhesive test labels from the test label tape onto the transport tape.

Claims

1. :

A process for producing an analytical tape for liquid samples, the process comprising the steps of;

providing a rollable transport tape,

forming a test label tape including at least a detection film and an adhesive tape, and

transferring test fields as self-adhesive test labels from the test label tape onto the transport tape, wherein the test fields are spaced apart in the direction of the transport tape for analyzing the liquid samples.

2. :

The process of claim 1 wherein one adhesive side of a double-sided adhesive tape is bonded to the detection film and the other adhesive side is bonded to the transport tape.

3. :

The process of claim 2 wherein the adhesive tape is stabilized by an intermediate foil, which is coated on both sides with adhesive.

4. :

The process of claim 3 wherein the detection film is applied to the adhesive tape while keeping lateral adhesive strips free.

5. :

The process of claim 4 wherein the detection film is covered by a cover layer that is in the form of a fabric or fleece.

6. :

The process of claim 5 wherein the cover layer is wider than the detection film and is held by the adhesive tape.

7. :

The process of claim 5 wherein the absorbent cover layer is provided with a water-repellent impregnation outside a detection zone.

8. :

The process of claim 5 wherein an impregnation agent is printed in a strip shape at sides of the detection film by a printing process.

9. :

The process of claim 5 wherein a filament structure forming the cover layer is coated with an impregnation agent.

10. :

The process of claim 1 wherein the adhesive tape is processed from roll-to-roll by means of a carrier sheet.

11. :

The process of claim 1 wherein the test labels are produced as detachable generally flat structures on a carrier sheet of the adhesive tape by cutting or punching.

12. :

The process of claim 1 wherein the test labels are detached from the carrier sheet of the adhesive tape by deflection over a dispensing edge and labeled onto the transport tape as it is transported from roll-to-roll.

13. :

The process of claim 1 wherein a multitrack test label tape is formed by several detection films next to one another on an adhesive tape.

14. :

The process of claim 13 wherein the multitrack test label tape is divided in sections into multiple test labels by cutting or punching.

15. :

The process of claim 13 wherein the multitrack test label tape is divided in sections into label blocks comprising several individual test labels lying next to one another by cutting or punching.

16. :

The process of claim 14 wherein the multiple test labels or the label blocks are labeled spaced apart onto the transport tape and subsequently the transport tape is divided longitudinally into individual tracks.

17. :

A device for producing an analytical tape for liquid samples comprising;

a conveying device operating from roll-to-roll for a rollable transport tape, and

a labeling device for labeling test labels including at least a detection film and an adhesive tape onto the passing transport tape at a labeling site.

18. :

The device of claim 17 wherein the labeling device has a laser cutter located in front of the labeling site to divide the adhesive tape furnished with the detection film into self-adhesive test labels.

19. :

An analytical tape for liquid samples comprising;

a rollable transport tape and

test fields for analyzing liquid samples applied to the transport tape, the test fields being self-adhesive test labels including at least a detection film and an adhesive tape and are labeled onto the transport tape.