EP0071084A1 - Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères - Google Patents

Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères Download PDF

Info

Publication number: EP0071084A1
Authority: EP; European Patent Office
Prior art keywords: chamber; fibers; stirrer; feed hopper; funnel
Prior art date: 1981-07-22
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.): Granted

Application number

EP82106300A

Other languages

German (de)

English (en)

Other versions

EP0071084B1 (fr

Inventor

Richard Dr. Bung

Karl Gans

Gerold Schreyer

Gerhard Dr. Welzel

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BASF SE

Original Assignee

BASF SE

Priority date (The priority date 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 date listed.)

1981-07-22

Filing date

1982-07-14

Publication date

1983-02-09

1982-07-14 Application filed by BASF SE filed Critical BASF SE

1982-07-14 Priority to AT82106300T priority Critical patent/ATE6875T1/de

1983-02-09 Publication of EP0071084A1 publication Critical patent/EP0071084A1/fr

1984-03-28 Application granted granted Critical

1984-03-28 Publication of EP0071084B1 publication Critical patent/EP0071084B1/fr

Status Expired legal-status Critical Current

Images

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
- D01D5/40—Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring

Definitions

the present invention relates to a device for the production of binding fibers, in particular for the production of nonwovens by the wet process with agents for bringing together polymer dispersions which contain anionic or nonionic dispersants and aqueous solutions containing cationic precipitants which cause fiber formation of precipitated polymer particles.
the polymer dispersion is injected under pressure in a thin jet through narrow nozzles into the moderately stirred precipitation bath, the polymer having to have a certain glass transition temperature (Tg).
Tg glass transition temperature
fibrils are obtained by precipitation in a shear field which is generated by nozzles and in which the individual jets had a speed of at least 5 m / s.
the precipitation in a shear field with an average energy density of at least 5 W.sec / cm 3 is also described in DOS 25 16 561.
the object of the present invention was to find a device which allows polymer dispersions of various chemical origins to be easily formed both into fibrils and into thin, at least 1 millimeter long fibers which are suitable as binding fibers for the consolidation of nonwovens to process. Smaller binding fibers can get into the filtrate during dewatering, become deposited in the water cycle and lead to malfunctions. In addition, they are lost as binders for the fleece.
a discharge space is preferably connected downstream of the homogenization space.
binding fibers or fibrils with a length of 1 to 6 mm and more can be produced in the laminar-flowing precipitation bath with low shear springs.
a stirrer 7 and the precipitant flowing in through a metering device 10 produce a drum 3 in the feed hopper 4 and a rotating precipitation bath in the homogenization chamber 8.
the polymer dispersion is produced in a thin jet from a container with a nozzle 1 connected downstream
the resulting dispersion thread 2 travels downward in the form of a spiral in the drum 3.
the surface of the thread is at least partially fixed by coagulation of the thread-shaped dispersion.
the coagulated dispersion thread is swirled into binding fibers or fibrils in a swirl chamber 5 and in the roller gap 6.
Im Homogenization chamber 8 in the rotating overflowing precipitation bath, the resulting fibers or fibrils are fixed by final coagulation and transported into a discharge chamber 9.
the pressure in the nozzle 1 and the width of the nip 6, fibers are formed with different lengths , possibly fibrils, with more or less strong ramifications on the surface and the ends.

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Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Mechanical Engineering (AREA)
Textile Engineering (AREA)
Nonwoven Fabrics (AREA)
Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Artificial Filaments (AREA)
Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

EP82106300A 1981-07-22 1982-07-14 Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères Expired EP0071084B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT82106300T ATE6875T1 (de)	1981-07-22	1982-07-14	Vorrichtung zur herstellung von bindefasern aus polymerisatdispersionen.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19813128873 DE3128873A1 (de)	1981-07-22	1981-07-22	Vorrichtung zur herstellung von bindefasern aus polymersatdispersionen
DE3128873		1981-07-22

Publications (2)

Publication Number	Publication Date
EP0071084A1 true EP0071084A1 (fr)	1983-02-09
EP0071084B1 EP0071084B1 (fr)	1984-03-28

Family

ID=6137426

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82106300A Expired EP0071084B1 (fr)	1981-07-22	1982-07-14	Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères

Country Status (5)

Country	Link
US (1)	US4534720A (fr)
EP (1)	EP0071084B1 (fr)
JP (1)	JPS5823912A (fr)
AT (1)	ATE6875T1 (fr)
DE (2)	DE3128873A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0384234A1 (fr) *	1989-02-18	1990-08-29	BASF Aktiengesellschaft	Procédé pour la fabrication de fibrilles à partir de mousses à alvéoles ouverts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
MX2008005226A (es) *	2005-10-20	2008-10-17	Dow Reichhold Specialty Latex	Material mixto de cuero.
CN111763996B (zh) *	2020-07-17	2023-08-29	中国科学技术大学	基于动态界面挤出的可编码水凝胶微纤维制备装置及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1505505A (fr) *	1965-11-03	1967-12-15	Du Pont	Procédé de fabrication de polyuréthane microporeux
DE1803897A1 (de) *	1967-04-28	1970-05-14	Konink Papierfabrieken Van Gel	Verfahren zur Herstellung eines faserfoermigen Bindemittels fuer Faservliesstoffe
DE2159871A1 (de) *	1970-12-02	1972-06-29	National Starch and Chemical Corp., New York, N.Y. (V.StA.)	Verfahren zur Herstellung von Faservlies

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4211737A (en) *	1974-11-19	1980-07-08	Montedison S.P.A.	Process for producing synthetic fibers for use in paper-making

1981
- 1981-07-22 DE DE19813128873 patent/DE3128873A1/de not_active Withdrawn
1982
- 1982-07-14 EP EP82106300A patent/EP0071084B1/fr not_active Expired
- 1982-07-14 DE DE8282106300T patent/DE3260084D1/de not_active Expired
- 1982-07-14 AT AT82106300T patent/ATE6875T1/de active
- 1982-07-19 JP JP57124545A patent/JPS5823912A/ja active Pending
- 1982-07-20 US US06/400,045 patent/US4534720A/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1505505A (fr) *	1965-11-03	1967-12-15	Du Pont	Procédé de fabrication de polyuréthane microporeux
DE1803897A1 (de) *	1967-04-28	1970-05-14	Konink Papierfabrieken Van Gel	Verfahren zur Herstellung eines faserfoermigen Bindemittels fuer Faservliesstoffe
DE2159871A1 (de) *	1970-12-02	1972-06-29	National Starch and Chemical Corp., New York, N.Y. (V.StA.)	Verfahren zur Herstellung von Faservlies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0384234A1 (fr) *	1989-02-18	1990-08-29	BASF Aktiengesellschaft	Procédé pour la fabrication de fibrilles à partir de mousses à alvéoles ouverts

Also Published As

Publication number	Publication date
EP0071084B1 (fr)	1984-03-28
US4534720A (en)	1985-08-13
JPS5823912A (ja)	1983-02-12
DE3128873A1 (de)	1983-02-10
ATE6875T1 (de)	1984-04-15
DE3260084D1 (en)	1984-05-03

Publication	Publication Date	Title
DE2052224A1 (de)	1971-05-13	Faserprodukt aus regenerierter Cellulose und Verfahren zu dessen Her stellung
DE2543824C3 (de)	1980-05-14	Verfahren zur Herstellung von Fibrillen aus Poly(amid-imid)-harzen und die Fibrillen aus diesen Harzen
EP0624665A2 (fr)	1994-11-17	Procédé et dispositif pour la production de fibres selon un procédé de filage par centrifugation
DE2208921B2 (de)	1975-04-10	Vorrichtung zur Herstellung von Kurzfasern aus einer thermoplastischen Kunststoff schmelze
DE2516561C3 (de)	1979-10-11	Verfahren zur Herstellung von Fibrillen aus Polymerisaten
DE2646332B2 (de)	1979-04-12	Verfahren zur Herstellung von Fibrillen aus fluorhaltigen Polymerisaten
EP0811087A1 (fr)	1997-12-10	Procede et dispositif de production de fibres de cellulose
EP0071084B1 (fr)	1984-03-28	Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères
EP1299459B1 (fr)	2004-09-29	Procede et dispositif pour la production de particules de cellulose
EP1268888A1 (fr)	2003-01-02	Procede et dispositif pour produire des fibres de cellulose et des fils continus de cellulose
DE2006398C3 (de)	1974-06-06	Verfahren zur Herstellung von hochspannungsfestem, öldichtem und wärmebeständigem Isolierpapier für elektrische Kraftkabel
DE3515346A1 (de)	1986-10-30	Vorrichtung zur herstellung von feinen mineralfasern
DE2543816A1 (de)	1977-04-14	Verwendung von fibrillen aus poly (amid-imid)harzen zur herstellung von papier- und textilaehnlichen flaechengebilden
EP0824105A2 (fr)	1998-02-18	Particules de cellulose
WO2024002880A1 (fr)	2024-01-04	Procédé et dispositif pour produire une bande de matière fibreuse
DE102022131868A1 (de)	2024-06-06	Vorrichtung zum Herstellen einer Faserbahn
DE69316585T2 (de)	1998-04-23	Vorrichtung und verfahren zur herstellung von faserigem material aus staerke
EP0071086B1 (fr)	1984-03-28	Procédé pour la fabrication de fibres liantes à partir de dispersions de polymères
DE2254898B2 (fr)	1979-07-19
DE2252758A1 (de)	1973-05-03	Verfahren zum erzeugen von fuer die papierherstellung geeigneten fibrillen
DE2257586A1 (de)	1973-05-30	Verfahren zum erzeugen von fuer die papierherstellung geeigneten fibrillen
EP0806500A1 (fr)	1997-11-12	Procédé pour la fabrication de fibrilles
DE2253752B2 (de)	1979-08-02	Verfahren zur Herstellung von Fasergebilden
EP4575081A1 (fr)	2025-06-25	Procédé et dispositif de fabrication d'une bande fibreuse
DE489481C (de)	1930-01-16	Verfahren-zur Herstellung von Kunstfasern

Legal Events

Date	Code	Title	Description
1982-12-10	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1983-02-09	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI NL SE
1983-02-23	17P	Request for examination filed	Effective date: 19821210
1983-11-17	ITF	It: translation for a ep patent filed
1984-01-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1984-03-28	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI NL SE
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1985-04-10	26N	No opposition filed
1991-07-31	ITTA	It: last paid annual fee
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EP0071084A1 - Appareil pour la fabrication de fibres liantes à partir de dispersions de polymères - Google Patents

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Classifications

Definitions

Landscapes

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6137426

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (2)

Citations (3)

Family Cites Families (1)

Patent Citations (3)

Cited By (1)

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