Method of manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle
US-2017355550-A1 · Dec 14, 2017 · US
Method for manufacturing reinforcing fiber strand
US9528200B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9528200-B2 |
| Application number | US-201214367248-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2012 |
| Priority date | Dec 22, 2011 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A method for manufacturing a reinforcing fiber strand is provided, in which a strand including reinforcing fibers passes through an uneven jig and a widening jig in this order, the uneven jig including a plurality of uneven portions having notched and protrusion portions, and the strand is divided by the protruding portions.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a reinforcing fiber strand, wherein a strand including reinforcing fibers passes through an uneven jig and a widening jig in this order, the uneven jig including a plurality of uneven portions having notched and protrusion portions which are disposed to generate unevenness in fiber density of the strand in a direction perpendicular to a strand travelling direction, and the strand is divided by the protruding portions. 2. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the uneven jig is a jig having an uneven portion of a height that is 0.01 to 10 times of a strand thickness. 3. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein a strand delivering distance (L), which is a distance between the uneven jig and the widening jig, satisfies the following Inequality (1): L≦ 20× W (1) wherein L is the strand delivering distance (mm) between the uneven jig and the widening jig, and W is a fiber strand width (mm) before the strand is widened. 4. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the strand passes through a convergence jig before the uneven jig. 5. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the widening jig has one convex portion. 6. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the strand passes through a second uneven jig after the widening jig. 7. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the reinforcing fibers comprise carbon fibers. 8. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein a strand width before the strand is widened ranges from 1 mm to 300 mm. 9. The method for manufacturing a reinforcing fiber strand according to claim 1 , wherein the uneven jig comprises a roll or a pin. 10. The method for manufacturing a reinforcing fiber strand according to claim 4 , wherein the convergence jig has one concave portion.
Assignees
Inventors
Classifications
Carbon fibres · CPC title
characterised by the structure of fibrous reinforcements {, e.g. hollow fibres} · CPC title
Aromatic polyamides · CPC title
Glass yarns or filaments · CPC title
- D02J1/18Primary
Separating or spreading · CPC title
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Frequently asked questions
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- What does patent US9528200B2 cover?
- A method for manufacturing a reinforcing fiber strand is provided, in which a strand including reinforcing fibers passes through an uneven jig and a widening jig in this order, the uneven jig including a plurality of uneven portions having notched and protrusion portions, and the strand is divided by the protruding portions.
- Who is the assignee on this patent?
- Teijin Ltd
- What technology area does this patent fall under?
- Primary CPC classification D02J1/18. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Dec 27 2016 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).