Nonwoven sterile packaging
US-2019210754-A1 · Jul 11, 2019 · US
Nonwoven fabric for sterilization packaging material
US12017442B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12017442-B2 |
| Application number | US-202017439840-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2020 |
| Priority date | Mar 22, 2019 |
| Publication date | Jun 25, 2024 |
| Grant date | Jun 25, 2024 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
The present disclosure provides: a non-woven fabric for a sterilization packaging material, the non-woven fabric being capable of being compatible with all sterilization treatment methods and maintaining a sterile state in the interior without breaking even in a variety of environments in which the non-woven fabric can be assumed to be used as a sterilization packaging material; and a non-woven fabric for a sterilization packaging material, the non-woven fabric achieving both easy-peel properties that enable easy handling without breakage and barrier properties for retaining the sterile state in the interior.
First claim
Opening claim text (preview).
The invention claimed is: 1. A nonwoven fabric for a sterilization packaging material having a fiber layer (I) with a void percentage of 30% to 60%, as a surface layer heat seal surface, and a fiber layer (II) with a fiber specific surface area of 1.0 m 2 /g to 10 m 2 /g and a 1 cm-equivalent thread count of between 800 and 1,000,000 per 1 mg, as a barrier layer, wherein the fiber layer (I) and the fiber layer (II) are layered and a surface coverage of 50% to 95% and the heat seal strength of the fiber layer (I) is 8 N/25 mm to 23 N/25 mm. 2. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the fibers composing the fiber layer (II) are polypropylene fibers. 3. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the fiber diameters of the fibers composing the fiber layer (I) are 5 μm to 30 μm, and the fiber diameters of the fibers composing the fiber layer (II) are 0.05 μm to 5 μm. 4. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the fiber diameters of the fibers composing the fiber layer (I) are 5 μm to 20 μm. 5. The nonwoven fabric for a sterilization packaging material according to claim 1 , which includes at least one layer of the fiber layer (I) and at least two layers of the fiber layer (II). 6. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the total basis weight is 20 g/m 2 to 100 g/m 2 . 7. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the gas permeability in a Gurley gas permeability test is 0.1 sec/100 mL to 100 sec/100 mL. 8. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the gas permeability in a Gurley gas permeability test is 0.1 sec/100 mL to 20 sec/100 mL. 9. The nonwoven fabric for a sterilization packaging material according to claim 1 , wherein the total thickness is 50 μm to 300 μm.
Assignees
Inventors
Classifications
Medical; Hygiene · CPC title
Load-responsive characteristics · CPC title
Heat-responsive characteristics · CPC title
polyesters, e.g. polyethylene terephthalate [PET] · CPC title
polypropylene · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12017442B2 cover?
- The present disclosure provides: a non-woven fabric for a sterilization packaging material, the non-woven fabric being capable of being compatible with all sterilization treatment methods and maintaining a sterile state in the interior without breaking even in a variety of environments in which the non-woven fabric can be assumed to be used as a sterilization packaging material; and a non-woven…
- Who is the assignee on this patent?
- Asahi Chemical Ind, Mitsui Chemicals Asahi Life Mat Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D04H3/16. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jun 25 2024 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).