Method of loading a cushioning conversion machine and sheet stock material supply useful therein

• US 6,756,096 B2
• Filed: 11/19/2001
• Issued: 06/29/2004
• Est. Priority Date: 11/17/2000
• Status: Expired due to Term

• Current Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Original Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Inventors: Harding, Joseph J.
• Primary Examiner(s): Ahmad, Nasser
• Application Number:
  US09/992,536
• Publication Number:
  US 20020100539A1
• Time in Patent Office: 953 Days
• Field of Search: 428/40.1, 428/42.1, 428/42.2, 428/42.3, 428/192, 428/194, 428/906, 428/43
• US Class Current: 428/40.1
• CPC Class Codes: B31D 2205/0023 as web from a roll
• CPC Class Codes: B31D 2205/0035 as fan folded web
• CPC Class Codes: B31D 2205/0047 Feeding, guiding or shaping the material
• CPC Class Codes: B31D 5/0047 involving toothed wheels
• CPC Class Codes: B31F 5/06 by adhesive tape
• CPC Class Codes: B65H 19/1852 taking place at a distance from the replacement roll
• CPC Class Codes: B65H 2301/46017 involving several layers
• CPC Class Codes: B65H 2301/4621 Overlapping article or web portions
• CPC Class Codes: B65H 2301/4622 Abutting article or web portions, i.e. edge to edge
• CPC Class Codes: Y10S 428/906 Roll or coil
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/1486 Ornamental, decorative, pattern, or indicia
• CPC Class Codes: Y10T 428/149 Sectional layer removable
• CPC Class Codes: Y10T 428/1495 Adhesive is on removable layer
• CPC Class Codes: Y10T 428/15 Sheet, web, or layer weakened to permit separation through thickness
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24793 Comprising discontinuous or differential impregnation or bond

Abstract

A supply of sheet stock material for use in a cushioning conversion machine is disclosed. The supply of stock material includes at least one ply of sheet stock material rolled or folded into a compact configuration such as a roll of wound stock material or a stack of fan-folded stock material. The ply has disposed on a leading or trailing end thereof, a pressure sensitive adhesive layer and a removable release liner covering the pressure sensitive adhesive layer. When a supply of sheet stock material is almost spent, a succeeding supply of stock material may be spliced to the almost spent supply by removing the release liner to expose the adhesive and then applying the leading or trailing end, having the adhesive thereon, to a trailing end of the almost spent supply of stock material or leading end of the succeeding supply of stock material.

Claims

1. A supply of sheet stock material for use in a cushioning conversion machine, comprising:

a multi-ply sheet stock material rolled or folded into a compact configuration, and

each ply of the multi-ply sheet stock material having on a leading or trailing end thereof a pressure sensitive adhesive layer and a removable release liner covering the pressure sensitive adhesive layer.

2. A supply of sheet stock material as set forth in claim 1, wherein the removable release liner is formed by a next adjacent ply of the sheet stock material.

3. A supply of sheet stock material as set forth in claim 2, wherein said adjacent ply has on its surface facing the adhesive layer a surface treatment for permitting removal of the adhesive layer from the adjacent ply.

4. A supply of sheet stock material as set forth in claim 1, wherein the pressure sensitive adhesive layer has a plurality of adhesive portions spaced apart across the width of said ply.

5. A supply of sheet stock material as set forth in claim 1, wherein the pressure sensitive adhesive layer extends substantially across the width of said ply of sheet stock material.

6. A supply of sheet stock material as set forth in claim 1, wherein the sheet stock material is fan-folded into said compact configuration.

7. A supply of sheet stock material as set forth in claim 1, wherein the sheet stock material is rolled into said compact configuration.

8. A supply of sheet stock material as set forth in claim 1, wherein the pressure sensitive layers are are aligned with one another in a direction perpendicular to the longitudinal extent of the sheet stock material.

9. A supply of sheet stock material as set forth in claim 1, wherein trailing or leading edges of the plies of sheet stock material are longitudinally offset from one another, and the pressure sensitive adhesive layers are positioned within the longitudinal offsets.

10. A supply of sheet stock material as set forth in claim 1, wherein trailing or leading edges of the pressure sensitive adhesive layers are longitudinally offset from trailing or leading edges of adjacent plies.

11. A supply of sheet stock material as set forth in claim 1, wherein the pressure sensitive adhesive layer is formed by one side of a double-sided adhesive strip.

12. A supply of sheet stock material as set forth in claim 1, wherein the pressure sensitive adhesive layer includes a reduced strength adhesive.

13. A supply of sheet stock material for use in a cushioning conversion machine, comprising:

at least one ply of kraft paper rolled or folded into a compact configuration,

each ply of kraft paper having on a leading or trailing end thereof a pressure sensitive adhesive layer and a removable release liner covering the pressure sensitive adhesive layer.

14. A supply of sheet stock material as set forth in claim 13, wherein the kraft paper is 30# kraft paper.

15. A supply of sheet stock material as set forth in claim 13, wherein the kraft paper is 50# kraft paper.