GB1225824A - - Google Patents
Info
- Publication number
- GB1225824A GB1225824A GB1225824DA GB1225824A GB 1225824 A GB1225824 A GB 1225824A GB 1225824D A GB1225824D A GB 1225824DA GB 1225824 A GB1225824 A GB 1225824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- strands
- web
- fibrils
- march
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 206010061592 cardiac fibrillation Diseases 0.000 abstract 2
- 230000001413 cellular effect Effects 0.000 abstract 2
- 230000002600 fibrillogenic effect Effects 0.000 abstract 2
- 239000004604 Blowing Agent Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- -1 polypropylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
1,225,824. Making fibrous lace-like webs by film fibrillation. EASTMAN KODAK CO. 14 March, 1968 [20 March, 1967], No. 12367/68. Heading B5B. A fibrous product formed from an oriented film of a crystalline cellular thermoplastic synthetic organic material comprises a plurality of strands integrally connected with one another at points along their lengths, a plurality of fibrils integrally connected with one another and integral with and connecting adjacent strands between said points of connection, the strands and fibrils forming a lace-like web in which substantially all of the fibrils and strands have both their ends integral with and connected to the web whereby to provide less than 20 loose ends per square inch of web. The web may be twisted into cord-like form. The average diameter of the cells formed in the film may be not greater than the thickness of the film. The thickness of the film may be between 1À0 and 5À0 mils. The celular material may be a polyolefin such as polypropylene. The fibrous product may be made by melt extruding a mixture of the thermoplastic material and a small proportion (e.g. not exceeding 0À35% by weight) of a blowing agent to form a flat cellular film, stretching the film in the longitudinal direction at a draw ratio which is within the range of 3:1 to 15:1 and which is sufficiently high to render the film fibrillatable, and thereafter subjecting the oriented film to a fracturing force to separate the film into strands and fibrils. The stretching of the film may be effected in an oven maintained at a temperature within the range 300‹ to 375‹ F. The fibrillation of the film may be effected by subjecting the film to pulsating jets of air at 5-90 p.s.i. applied to both sides of the film at the same time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62456467A | 1967-03-20 | 1967-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225824A true GB1225824A (en) | 1971-03-24 |
Family
ID=24502470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1225824D Expired GB1225824A (en) | 1967-03-20 | 1968-03-14 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1694058A1 (en) |
| FR (1) | FR1582039A (en) |
| GB (1) | GB1225824A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140276512A1 (en) * | 2013-03-15 | 2014-09-18 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US9504610B2 (en) | 2013-03-15 | 2016-11-29 | The Procter & Gamble Company | Methods for forming absorbent articles with nonwoven substrates |
| US11090407B2 (en) | 2017-03-09 | 2021-08-17 | The Procter & Gamble Company | Thermoplastic polymeric materials with heat activatable compositions |
| US11110013B2 (en) | 2014-09-10 | 2021-09-07 | The Procter & Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
| US11129919B2 (en) | 2016-03-09 | 2021-09-28 | The Procter & Gamble Company | Absorbent article with activatable material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2213151A1 (en) * | 1973-01-10 | 1974-08-02 | Genin Paul | Synthetic fibre production by extruding film - containing bubbles and exploding the bubbles to rip the film into fibres |
-
1968
- 1968-03-14 GB GB1225824D patent/GB1225824A/en not_active Expired
- 1968-03-19 DE DE19681694058 patent/DE1694058A1/en active Pending
- 1968-03-20 FR FR1582039D patent/FR1582039A/fr not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140276512A1 (en) * | 2013-03-15 | 2014-09-18 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US9205006B2 (en) * | 2013-03-15 | 2015-12-08 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US9504610B2 (en) | 2013-03-15 | 2016-11-29 | The Procter & Gamble Company | Methods for forming absorbent articles with nonwoven substrates |
| US9974700B2 (en) | 2013-03-15 | 2018-05-22 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US10016319B2 (en) | 2013-03-15 | 2018-07-10 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US10993855B2 (en) | 2013-03-15 | 2021-05-04 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
| US11110013B2 (en) | 2014-09-10 | 2021-09-07 | The Procter & Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
| US11839531B2 (en) | 2014-09-10 | 2023-12-12 | The Procter And Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
| US11129919B2 (en) | 2016-03-09 | 2021-09-28 | The Procter & Gamble Company | Absorbent article with activatable material |
| US11090407B2 (en) | 2017-03-09 | 2021-08-17 | The Procter & Gamble Company | Thermoplastic polymeric materials with heat activatable compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1582039A (en) | 1969-09-26 |
| DE1694058A1 (en) | 1970-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |