Non-coated airbag base fabric, coated airbag base fabric, and airbag using same
US-11746446-B2 · Sep 5, 2023 · US
Airbag base fabric and production method therefor
US12252091B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12252091-B2 |
| Application number | US-202118252929-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2021 |
| Priority date | Nov 16, 2020 |
| Publication date | Mar 18, 2025 |
| Grant date | Mar 18, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present disclosure describes using additional yarn having a boiling-water shrinkage rate less than that of the base yarn, thereby suppressing shrinkage at the sides in the width direction of the fabric and thus reducing the difference in the crimp ratio between the center in the width direction of the fabric and the sides in the width direction. This enables the production of a fabric for airbags with high uniformity in the width direction.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fabric for airbags comprising unremoved fringe at both sides in the width direction of the fabric, the fabric comprising at least two additional yarns at each of the sides in the width direction, wherein the crimp ratio of warp yarn aligned in the center in the width direction of the fabric is within the range of 7 to 20%, the crimp ratio of warp yarn aligned at the sides in the width direction of the fabric is 3 to 15% or less, the difference in the crimp ratio between the warp yarn aligned at the sides and the warp yarn aligned in the center is 5.0% or less, and the additional yarn has a boiling-water shrinkage rate less than that of a base yarn, which constitutes the fabric for airbags, and the difference in the boiling-water shrinkage rate between the additional yarn and the base yarn is 0.8% or more. 2. A method for producing the fabric for airbags of claim 1 , comprising incorporating, at each side in the width direction of the fabric, at least two additional yarns in which the boiling-water shrinkage rate of a base yarn is greater than the boiling-water shrinkage rate of the additional yarn, and the difference in the boiling-water shrinkage rate between the base yarn and the additional yarn is 0.8% or more, and then performing scouring and shrinking.
Assignees
Inventors
Classifications
- D03D1/02Primary
Inflatable articles · CPC title
Shapes or effects upon shrinkage · CPC title
Setting · CPC title
Fabric · CPC title
polyamides (D10B2331/08 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US12252091B2 cover?
- The present disclosure describes using additional yarn having a boiling-water shrinkage rate less than that of the base yarn, thereby suppressing shrinkage at the sides in the width direction of the fabric and thus reducing the difference in the crimp ratio between the center in the width direction of the fabric and the sides in the width direction. This enables the production of a fabric for a…
- Who is the assignee on this patent?
- Toyo Boseki
- What technology area does this patent fall under?
- Primary CPC classification D03D1/02. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Mar 18 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).