Method of making a rod for use as an aerosol-forming substrate having controlled porosity distribution
US-2018177228-A1 · Jun 28, 2018 · US
Lyocell material for cigarette filter and method for preparing same
US10806174B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10806174-B2 |
| Application number | US-201916370152-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2019 |
| Priority date | Sep 26, 2013 |
| Publication date | Oct 20, 2020 |
| Grant date | Oct 20, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
Disclosed are a lyocell material for a cigarette filter and a method of preparing the same, wherein a crimped tow is manufactured using a lyocell multifilament including low-strength lyocell monofilaments, and thus the ultimately prepared lyocell material for a cigarette filter can exhibit low strength, thereby increasing processing efficiency during the manufacture of the cigarette filter.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cigarette filter component material comprising a crimped tow of a multiplicity of lyocell filaments, wherein the crimped tow has a tensile strength of 1 to 1.32 g/d and an elongation at break of 5 to 5.5%. 2. The cigarette filter component material of claim 1 , wherein an individual lyocell filament of the multiplicity of lyocell filaments has a strength of 2.0 to 3.5 g/d. 3. The cigarette filter component material of claim 1 , wherein the crimped tow has 15 to 30 crimps per inch. 4. The cigarette filter component material of claim 2 , wherein the individual lyocell filament has a fineness of 1.0 to 8.0 denier. 5. The cigarette filter component material of claim 2 , wherein the individual lyocell filament has an elongation of 5 to 13%.
Assignees
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Classifications
Preparation of spinning solutions · CPC title
Domestic or personal · CPC title
characterised by functional properties · CPC title
combined with shaping by flattening, folding or bending · CPC title
Wet spinning methods {(D01D5/0046 takes precedence)} · CPC title
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Frequently asked questions
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- What does patent US10806174B2 cover?
- Disclosed are a lyocell material for a cigarette filter and a method of preparing the same, wherein a crimped tow is manufactured using a lyocell multifilament including low-strength lyocell monofilaments, and thus the ultimately prepared lyocell material for a cigarette filter can exhibit low strength, thereby increasing processing efficiency during the manufacture of the cigarette filter.
- Who is the assignee on this patent?
- Kolon Inc, Kt & G Corp
- What technology area does this patent fall under?
- Primary CPC classification A24D3/0204. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Oct 20 2020 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).