Label with adhesive and silicone-free release coating

Patent metadata

Field	Value
Publication number	US-10920114-B2
Application number	US-201916721585-A
Country	US
Kind code	B2
Filing date	Dec 19, 2019
Priority date	Dec 10, 2013
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A label having a silicone-free (water-based) release coating and compatible adhesive patch is provided. The label includes a thermally coated substrate having a silicone-free substrate overlaid thereon of a first surface. A second surface includes a microsphere adhesive layer.

First claim

The invention claimed is:

1. A method, comprising:
applying, by a press, a microsphere adhesive to a first surface of a substrate at a location defined by printed contour lines printed on the substrate and deposited on the substrate as a first adhesive bump on the first surface representing a first adhesive patch, and applying, by the press, a second adhesive as a second adhesive bump on top of the first adhesive bump, the microsphere adhesive applied as an adhesive patch to the first surface;
coating, by the press, a second surface of the substrate with a water-based non-silicon release coating formulation, wherein the water-based non-silicon release coating formulation comprises approximately 5% or less of silicon by weight; and
drying, by the press, the microsphere adhesive and the second adhesive on the first surface of the substrate.

2. The method of claim 1 , wherein applying further includes adjusting one or of: a rheology of the microsphere adhesive, a tack of the microsphere adhesive, and a color of the microsphere adhesive by adding chemicals to the microsphere adhesive.

3. The method of claim 2 , wherein adjusting further includes adding the chemicals as one or more of: rheology modifiers, optical brightening agents, and runnability enablers.

4. The method of claim 1 , wherein drying further includes drying, by the press, the microsphere adhesive without using chill rolls during the drying.

5. The method of claim 4 , wherein drying further includes adhesive drying, by the press, the microsphere with fans after initially drying, by the press, the microsphere adhesive with driers to assist in the drying of the microsphere adhesive on the first surface.

6. A method, comprising:
formulating a water-based non-silicon release coating at least comprising a fluorochemical and a non-silicone release agent, wherein the water-based non-silicon release coating formulation comprises approximately 5% or less of silicon by weight;
obtaining a water-based adhesive comprising a repositionable microsphere adhesive;
obtaining a second adhesive;
depositing the water-based adhesive as a first adhesive patch printed as a first adhesive bump on a first surface of a substrate;
printing the second adhesive as a second adhesive patch on top of the first adhesive bump; and
coating the water-based non-silicon free release coating on a second surface of the substrate;
wherein the depositing, the printing, and the coating, are performed by a press against a web of the substrate defining a plurality of individual labels.

7. The method claim 6 , further comprising winding a web of the substrate into a roll of labels.

8. The method of claim 6 , wherein formulating further includes formulating the water-based non-silicon release coating as a mixture comprising the fluorochemical, a starch, a defoamer, the non-silicon release agent, and a catalyst.

9. The method of claim 6 , wherein the second surface of the substrate is pre-coated with thermal print-activated layer.

10. The method of claim 6 , wherein depositing further includes drying the first adhesive with driers on the first surface and thereafter further drying the first adhesive with fans.

11. The method of claim 10 , wherein printing further includes applying a chiller roll to the substrate after the drying with the fans to cool down the substrate before printing the second adhesive on the first surface on top of the first adhesive.

12. The method of claim 6 , wherein depositing further includes adding a brighten agent to the first adhesive to identify the first adhesive bump on the first surface of the substrate before depositing the first adhesive on the first surface of the substrate.

Assignees

• Iconex Llc

Inventors

• Wild Martha Patricia
• Wilker Marcus Eugene
• Le Tuan Anh Nguyen
• Watkins Jessica Darlene

Classifications

• Y10T156/11

  Methods of delaminating, per se; i.e. , separating at bonding face · CPC title

• Y10T428/2839

  with release or antistick coating · CPC title

• Y10T428/28

  Web or sheet containing structurally defined element or component and having an adhesive outermost layer · CPC title

• C09J2301/412

  presence of microspheres · CPC title

• Y10T156/19

  Delaminating means · CPC title