Dual pressure sensitive adhesive sheet for instore signage

• US 10,525,687 B2
• Filed: 04/09/2018
• Issued: 01/07/2020
• Est. Priority Date: 04/09/2018
• Status: Active Grant

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Herrmann, Douglas K, Ruiz, Erwin, Fromm, Paul M
• Primary Examiner(s): Edwards, Laura
• Application Number:
  US15/947,953
• Publication Number:
  US 20190308401A1
• Time in Patent Office: 638 Days
• Field of Search: 118 35, 118 37, 118 58, 118 66- 68, 118211, 118221, 118224, 118244, 118249, 118255, 118259, 156578, 156510, 156548, 156549
• CPC Class Codes: B05C 1/027 only at particular parts of the articles at particular parts of work of indefinite length B05C1/16
• CPC Class Codes: B05C 1/0808 Details thereof, e.g. surface characteristics
• CPC Class Codes: B05C 1/0813 characterised by means for supplying liquid or other fluent material to the roller
• CPC Class Codes: B05C 1/0821 characterised by driving means for rollers or work
• CPC Class Codes: B05C 1/0834 the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
• CPC Class Codes: B05C 1/16 only at particular parts of the work at particular parts of separate articles B05C1/027
• CPC Class Codes: B05C 9/06 for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
• CPC Class Codes: B05D 1/28 performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
• CPC Class Codes: B05D 5/10 to obtain an adhesive surface
• CPC Class Codes: B05D 7/04 to surfaces of films or sheets producing layered products by applying coatings of pasty or pulverulent plastics B29C41/00
• CPC Class Codes: B29C 65/526 by printing or by transfer from the surfaces of elements carrying the adhesive, e.g. using brushes, pads, rollers, stencils or silk screens
• CPC Class Codes: B32B 2037/1253 curable adhesive
• CPC Class Codes: B32B 2405/00 Adhesive articles, e.g. adhesive tapes labels B32B2519/00
• CPC Class Codes: B32B 2590/00 Signboards, advertising panels, road signs
• CPC Class Codes: B32B 37/0053 Constructional details of laminating machines comprising rollers; Constructional features of the rollers
• CPC Class Codes: B32B 37/025 Transfer laminating
• CPC Class Codes: B32B 37/1284 Application of adhesive
• CPC Class Codes: B32B 37/1292 selectively, e.g. in stripes, in patterns B32B37/0076 takes precedence
• CPC Class Codes: B32B 38/0004 Cutting, tearing or severing, e.g. bursting; Cutter details cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence
• CPC Class Codes: B32B 38/10 Removing layers, or parts of layers, mechanically or chemically
• CPC Class Codes: C09J 7/38 : Pressure-sensitive adhesives [PSA]

Abstract

A tandem system of metering and donor rolls is used to apply two different adhesives to a fully adhesive backed multilayer sheet to produce variably distributed adhesives and properties. Each of the two adhesives is unique and is cured differently to create a layer of adhesive that has differing adhesive properties on the sheet. A clear adhesive is applied to a top portion of cards before they are cut from the sheet and has a higher tackiness than the adhesive applied to the rest of the cards on the sheet in order to reduce glue buildup on blades cutting the cards from the sheet.

Claims

1. An apparatus for applying dual pressure sensitive adhesives to separate portions of a sheet, comprising:

a sheet driven by drive rolls to receive different pressure sensitive adhesives onto either first or second portions thereof;

a first sump having a first pressure sensitive adhesive therein;

a first metering roll positioned to remove said first pressure sensitive adhesive from said first sump;

a first transfer roll;

a first donor roll including multiple spaced and continuous raised rings of a first width surrounding said first donor roll and corresponding to said first portions of said sheet positioned in contact with said first metering roll and said first transfer roll and adapted to transfer said first pressure sensitive adhesive from said first metering roll to said first transfer roll with said first transfer roll transferring said first pressure sensitive adhesive onto said first portions of said sheet;

a second sump having a second pressure sensitive adhesive therein;

a second metering roll positioned to remove said second pressure sensitive adhesive from said second sump;

a second transfer roll; and

a second donor roll including multiple spaced and continuous raised rings of a second width surrounding said second donor roll and corresponding to said second portions of said sheet positioned in contact with said second metering roll and said second transfer roll and adapted to transfer said second pressure sensitive adhesive from said second metering roll to said second transfer roll with said second transfer roll transferring said second pressure sensitive adhesive onto said second portions of said sheet wherein applied first and second pressure sensitive adhesives are non-overlapping on said sheet.

2. The apparatus of claim 1, wherein said pressure sensitive adhesive of said first portions of said first donor roll is different from said pressure sensitive adhesive of said second portions of said second donor roll.

3. The apparatus of claim 2, wherein said first pressure sensitive adhesive has adhesion that is different from the adhesion of said second pressure sensitive adhesive.

4. The apparatus of claim 2, wherein said first and second transfer rolls form a nip with said drive rolls.