Microstructured release liners
US-9353294-B2 · May 31, 2016 · US
Method of producing an adhesive sheet or a release liner
US12351749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12351749-B2 |
| Application number | US-202318162793-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2023 |
| Priority date | Sep 7, 2018 |
| Publication date | Jul 8, 2025 |
| Grant date | Jul 8, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A release liner which makes it difficult for an adhesive layer to impair slidability and makes it easy to exhibit an adhesive force suitably, a method of producing a release liner, an adhesive sheet, and a method of producing an adhesive sheet. A release liner has a surface provided with a ridge portion extending linearly, and on the surface, a plurality of recesses having different depths are randomly formed in a surface direction and are continuously connected.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing a release liner, comprising: providing a roller having a pattern on an outer peripheral surface of the roller, the pattern comprising: grooves extending linearly and seamlessly integrally formed with the outer peripheral surface of the roller, and a plurality of protrusions having different heights randomly formed between adjacent grooves in a surface direction, the plurality of protrusions being continuously connected; pressing a surface of a liner material against the outer peripheral surface of the roller; and deforming the surface of the liner material to form an inverted pattern corresponding to the pattern on the outer peripheral surface of the roller. 2. The method of producing a release liner according to claim 1 , wherein the plurality of protrusions having different heights are randomly formed and are connected even at an edge of an opening of the grooves. 3. A method of producing a release liner, comprising: providing a roller having a pattern on an outer peripheral surface of the roller, the pattern comprising: grooves that intersect with each other and are seamlessly and integrally formed with the outer peripheral surface of the roller, and a plurality of protrusions having different heights randomly formed between adjacent grooves in a surface direction, the plurality of protrusions being continuously connected; pressing a surface of a liner material against the outer peripheral surface of the roller; and deforming the surface of the liner material to form an inverted pattern corresponding to the pattern on the outer peripheral surface of the roller. 4. The method of producing a release liner according to claim 1 , wherein the grooves are separated at a predetermined pitch.
Assignees
Inventors
Classifications
Compression means for making articles of indefinite length · CPC title
Microembossing · CPC title
characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor · CPC title
Release layer · CPC title
- B29C59/04Primary
using rollers or endless belts · CPC title
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Frequently asked questions
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- What does patent US12351749B2 cover?
- A release liner which makes it difficult for an adhesive layer to impair slidability and makes it easy to exhibit an adhesive force suitably, a method of producing a release liner, an adhesive sheet, and a method of producing an adhesive sheet. A release liner has a surface provided with a ridge portion extending linearly, and on the surface, a plurality of recesses having different depths are …
- Who is the assignee on this patent?
- Lintec Corp
- What technology area does this patent fall under?
- Primary CPC classification B29C59/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 08 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).