Ballistic translation efficiency of high performance fibers
US-11530513-B2 · Dec 20, 2022 · US
Method for producing flexible sheet
US8945452B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8945452-B2 |
| Application number | US-201013498822-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 29, 2010 |
| Priority date | Oct 9, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for producing a flexible sheet includes a stretching step in which a base sheet ( 10 ) is fed from between a pair of first drive rollers ( 42, 43 ) into the bite of a pair of intermeshing corrugated rollers ( 2, 3 ) and stretched in the machine direction between the corrugated rollers ( 2, 3 ). In the method, the peripheral velocity V 1 of the first drive rollers ( 42, 43 ) and the peripheral velocity V 2 of the corrugated rollers ( 2, 3 ) have a relation of V 1 >V 2.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a flexible sheet comprising a stretching step in which a base sheet is fed from between a pair of first drive rollers into the bite between a pair of intermeshing corrugated rollers to be stretched in the machine direction, the peripheral velocity V 1 of the first drive rollers and the peripheral velocity V 2 of the corrugated rollers having a relation of V 1 >V 2 , and the ratio of the peripheral velocity V 2 of the corrugated rollers to the peripheral velocity V 1 of the first drive rollers (V 2 /V 1 )*100, is 60% to 90%. 2. The method according to claim 1 , wherein the base sheet to be fed into the bite of the pair of intermeshing corrugated rollers is under tension applied in the machine direction between the first drive rollers and the intermeshing corrugated rollers. 3. The method according to claim 1 , further comprising a taking-off step in which the stretched base sheet is conveyed to the nip between a pair of second drive rollers and taken off from the pair of intermeshing corrugated rollers under tension applied by the pair of second drive rollers in the machine direction, the peripheral velocity V 3 of the second drive rollers and the peripheral velocity V 1 of the first drive rollers having a relation of V 3 >V 1 . 4. The method according to claim 1 , wherein the pair of intermeshing corrugated rollers is configured to stretch the base sheet at a stretch ratio of 1.1 to 5.0. 5. The method according to claim 1 , wherein the base sheet is nonwoven fabric containing elastic fibers and is processed by the stretching step to have stretchability in the machine direction.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8945452B2 cover?
- A method for producing a flexible sheet includes a stretching step in which a base sheet ( 10 ) is fed from between a pair of first drive rollers ( 42, 43 ) into the bite of a pair of intermeshing corrugated rollers ( 2, 3 ) and stretched in the machine direction between the corrugated rollers ( 2, 3 ). In the method, the peripheral velocity V 1 of the first drive rollers ( 42, 43 ) and the pe…
- Who is the assignee on this patent?
- Morita Shinnosuke, Ando Kenji, Kao Corp
- What technology area does this patent fall under?
- Primary CPC classification D06C3/06. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).