Method of transferring film

Patent metadata

Field	Value
Publication number	US-11465406-B2
Application number	US-201917289324-A
Country	US
Kind code	B2
Filing date	Oct 28, 2019
Priority date	Oct 29, 2018
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A film transferring method according to an embodiment of the present invention of transferring a film adhered to a substrate to a roller in a state that a first adhesion force between the roller and the film and a second adhesion force between the film and the substrate are substantially the same includes: a transporting step of transporting the substrate and the film of which a first adhesion surface formed on one surface is adhered to the substrate in a first direction; a close contacting step of closely contacting the front end of the second adhesion surface formed on the other surface of the film that is transported with the roller rotating in the first rotation direction; and a transferring step of peeling the film from the substrate and simultaneously transferring it to the roller by peeling the front adhesion surface of the first adhesion surface from the substrate, while simultaneously transferring the front end of the second adhesion surface to the roller and continuously transporting the substrate in the first direction, wherein a first weak adhesion force that is smaller than the second adhesion force is formed between the front adhesion surface and the substrate.

First claim

The invention claimed is:

1. A film transferring method of transferring a film adhered to a substrate to a roller in a state that a first adhesion force between the roller and the film and a second adhesion force between the film and the substrate are substantially the same, comprising:
transporting the substrate and the film of which a first adhesion surface formed on one surface is adhered to the substrate in a first direction;
contacting a front end of a second adhesion surface formed on another surface of the film that is transported with the roller rotating in a first rotation direction; and
peeling the film from the substrate and simultaneously transferring the film to the roller by peeling a front adhesion surface of the first adhesion surface from the substrate, while simultaneously adhering the front end of the second adhesion surface to the roller and continuously transporting the substrate in the first direction,
wherein a third adhesion force smaller than the second adhesion force is formed between the front adhesion surface and the substrate,
wherein the third adhesion force is generated by
providing an adhesion force layer having weaker adhesion force than the second adhesion force on the front adhesion surface or
forming the first adhesion surface to be shorter than the second adhesion surface and the front adhesion surface to be inclined in the second adhesion surface direction.

2. A film transferring method of transferring a film adhered to a roller to a substrate in a state in which a first adhesion force between the roller and the film and a second adhesion force between the film and the substrate are substantially the same, comprising:
rotating the roller and the film of which a first adhesion surface formed on one surface is adhered to the roller in a first rotation direction;
transporting the substrate in a first direction and contacting a front end of a second adhesion surface formed on another surface of the rotated film with the transported substrate; and
peeling the film from the roller and simultaneously transferring the film to the substrate by peeling a front adhesion surface of the first adhesion surface from the roller, while simultaneously adhering the front end of the second adhesion surface to the substrate and continuously transporting the substrate in the first direction,
wherein a third adhesion force smaller than the first adhesion force is formed between the front adhesion surface and the roller,
wherein the third adhesion force is generated by
providing an adhesion force layer having weaker adhesion force than the second adhesion force on the front adhesion surface or
forming the first adhesion surface to be shorter than the second adhesion surface and the front adhesion surface to be inclined in the second adhesion surface direction.

3. A film transferring method of transferring a film adhered to a substrate to a roller in a state that a first adhesion force between the roller and the film and a second adhesion force between the film and the substrate are substantially the same, comprising:
transporting the substrate and the film of which a first adhesion surface formed on one surface is adhered to the substrate in a first direction;
contacting a front end of a second adhesion surface formed on another surface of the transported film with the roller rotating in a first rotation direction; and
peeling the film from the substrate and simultaneously transferring the film to the roller by adhering a front adhesion surface of the second adhesion surface to the roller, while simultaneously peeling a front end of the first adhesion surface from the substrate and continuously transporting the substrate in the first direction,
wherein a third adhesion force larger than the first adhesion force is formed between the front adhesion surface and the roller,
wherein the third adhesion force is generated by providing an adhesion force layer having stronger adhesion force than the first adhesion force on the front adhesion surface.

4. A film transferring method of transferring a film adhered to a roller to a substrate in a state that a first adhesion force between the roller and the film and a second adhesion force between the film and the substrate are substantially the same, comprising:
rotating the roller and the film of which a first adhesion surface formed on one surface is adhered to the roller in a first rotation direction;
transporting the substrate in a first direction and contacting a front end of the second adhesion surface formed on another surface of the rotated film with the transported substrate; and
peeling the film from the roller and simultaneously transferring the film to the substrate by adhering a front adhesion surface of the second adhesion surface to the substrate, while simultaneously peeling a front end of the first adhesion surface from the roller and continuously transporting the substrate in the first direction,
wherein a third adhesion force larger than the second adhesion force is formed between the front adhesion surface and the substrate,
wherein the third adhesion force is generated by providing an adhesion force layer having stronger adhesion force than the second adhesion force on the front adhesion surface.

Assignees

• Korea Inst Mach & Materials

Inventors

• Jang Bongkyun
• Kim Jae-Hyun
• Park Hyun-Sung
• Lee Seung-Mo
• Kim Kwangseop
• Choi Byung-Ik

Classifications

• B65H2701/1752

  Polymer film · CPC title

• B65H29/56 Primary

  for stripping from elements or machines {(for electrographic machines G03G)} · CPC title

• B65H2301/51122

  peeling layer of material · CPC title

• B44C1/105

  comprising an adhesive layer (decalcomania B44C1/16; adhesive tapes C09J7/20) · CPC title

• B41F16/002 Primary

  Presses of the rotary type · CPC title