Crosslinked fibers and method of making same by extrusion
US-9421296-B2 · Aug 23, 2016 · US
Method of producing ADM collagen fiber, ADM collagen fiber produced using method, and apparatus for producing ADM collagen fiber
US12583909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12583909-B2 |
| Application number | US-202117792608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 8, 2021 |
| Priority date | Jan 14, 2020 |
| Publication date | Mar 24, 2026 |
| Grant date | Mar 24, 2026 |
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- Title
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Abstract
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The present invention relates to a method of producing an ADM collagen fiber, an ADM collagen fiber produced using the method, and an apparatus for producing the ADM collagen fiber. More particularly, the present invention relates to a method of producing an ADM collagen fiber including a step of extruding an acidic ADM collagen solution into a basic solution to form filaments. The present invention has an effect of providing a method of producing an ADM collagen fiber, an ADM collagen fiber produced using the method, and an apparatus for producing the ADM collagen fiber. According to the present invention, since a collagen solution raw material having a required concentration may be prepared by immediately pulverizing ADM collagen shells, economic efficiency and productivity may be increased through reduction in production cost and time. In addition, mass production is possible by using a continuous process apparatus with a simple structure.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method of producing an acellular dermal matrix (ADM) collagen fiber, comprising: extruding an acidic ADM collagen solution into a basic solution to form filaments, dehydrating the formed filaments with an organic solvent, drying the dehydrated filaments under vacuum or atmospheric pressure, and winding the dried filaments to produce the ADM collagen fiber, wherein the acidic ADM collagen solution comprises 1 to 15% by weight of an ADM collagen, 0.1 to 20% by weight of an organic acid, and a remainder of water, and wherein the extruding is performed under conditions of a nozzle diameter of 0.1 to 2.5 mm and a discharge rate of 1.0 to 30 ml/h per a nozzle. 2 . The method according to claim 1 , wherein the organic acid is acetic acid. 3 . The method according to claim 1 , wherein the basic solution has a pH of 9 to 12. 4 . The method according to claim 1 , wherein the basic solution comprises a base and an organic solvent. 5 . The method according to claim 4 , wherein the base is ammonia water. 6 . The method according to claim 4 , wherein the organic solvent comprises one or more selected from the group consisting of ethanol, methanol, isopropanol, butanol, and ethyl acetate. 7 . The method according to claim 1 , wherein the organic solvent comprises one or more selected from the group consisting of ethanol, methanol, isopropanol, butanol, and ethyl acetate. 8 . The method according to claim 1 , wherein, when performing the extrusion, multi-nozzles are applied.
Assignees
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Classifications
Collagen fibres · CPC title
Washing or drying · CPC title
using organic materials · CPC title
Other agents for modifying properties · CPC title
Wet spinning methods {(D01D5/0046 takes precedence)} · CPC title
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- What does patent US12583909B2 cover?
- The present invention relates to a method of producing an ADM collagen fiber, an ADM collagen fiber produced using the method, and an apparatus for producing the ADM collagen fiber. More particularly, the present invention relates to a method of producing an ADM collagen fiber including a step of extruding an acidic ADM collagen solution into a basic solution to form filaments. The present inve…
- Who is the assignee on this patent?
- Genewel Co Ltd, Univ Industry Cooperation Group Kyung Hee Univ
- What technology area does this patent fall under?
- Primary CPC classification D01F4/00. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Mar 24 2026 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).