Easily removable paper tube, article using the paper tube, and method for successively using the articles

Patent metadata

Field	Value
Publication number	US-9708153-B2
Application number	US-201414650384-A
Country	US
Kind code	B2
Filing date	Oct 22, 2014
Priority date	Nov 6, 2013
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

The present invention relates to an easily removable paper tube used for winding material, such as fabric, a band, a film, and so forth, and a method for successively using articles, each of which uses the paper tube, and, more specifically, to an easily removable paper tube and a method for successively using articles that use the paper tube, in which the paper tube is effectively removed, without deforming a roll of material wound around the paper tube, such use of the material enabled by releasing it from the inside of the roll with the paper tube removed, thereby increasing the unrolling speed of the material, and a first article and a second article, each of which includes wound material, are connected to each other for use, thereby allowing successive provision of the articles, and thus remarkably increasing a rate of successive production.

First claim

What is claimed is:

1. An easily removable paper tube comprising:
a perforated portion formed by helically perforating a winding surface of the paper tube with a cylindrical shape,
wherein a winding surface of the paper tube further includes at least one additional sheet of source paper wrapped around an entire surface thereof, except the perforated portion.

2. The easily removable paper tube of claim 1 , wherein a length ratio of a perforation of the perforated portion to a non-perforated part is 0.5:1 to 10:1.

3. The easily removable paper tube of claim 1 , wherein an angle of the perforated portion relative to a horizontal plane is 20 degrees to 40 degrees.

4. The easily removable paper tube of claim 1 , wherein a distance between two perforated portions is 30 mm to 200 mm.

5. The easily removable paper tube of claim 1 , further comprising at least one sheet of film or paper that wraps around an outermost circumferential surface of the paper tube.

6. The easily removable paper tube of claim 5 , wherein a central line surface roughness of the film or paper is 0.03 μm to 10 μm.

7. The easily removable paper tube of claim 5 , wherein the film or paper is shorter than a length of the paper tube and longer than a length of material to be wound around the paper tube.

8. The easily removable paper tube of claim 5 , wherein the film or the paper is thermally contracted.

9. The easily removable paper tube of claim 1 , further comprising:
at least one sheet of film or paper that wraps around an outermost circumferential surface of the paper tube.

10. The easily removable paper tube of claim 9 , wherein a central line surface roughness Ra of the film or paper is 0.03 μm to 10 μm.

11. The easily removable paper tube of claim 9 , wherein the film or paper is shorter than a length of the paper tube and longer than a length of material to be wound around the paper tube.

12. The easily removable paper tube of claim 9 , wherein the film or paper has thermally contracted.

13. An article using an easily removable paper tube of claim 1 , the article comprising:
material wound around the paper tube.

14. The article of claim 13 , wherein the material wound around the paper tube is one of fiber, non-woven fabric, a film, or fabric.

Assignees

• Toray Advanced Mat Korea Inc

Inventors

• Kim Gwang-Su
• Lee Seung-Hun
• Kim Hwang-Yong
• Kim Sang-Pil

Classifications

• B65H16/00

  Unwinding, paying-out webs {(reel-to-reel type web winding and unwinding mechanisms B65H18/103, B65H18/145)} · CPC title

• B65H2701/5112

  Paper or plastic sheet material · CPC title

• B65H2701/532

  Tearable or frangible cores or reels · CPC title

• B65H49/12

  the reserve packages being mounted to permit manual or automatic transfer to operating position · CPC title

• B65H75/10 Primary

  without flanges, e.g. cop tubes · CPC title