WO2005035856A1 - Schrumpffreies vlies - Google Patents
Schrumpffreies vlies Download PDFInfo
- Publication number
- WO2005035856A1 WO2005035856A1 PCT/EP2004/008622 EP2004008622W WO2005035856A1 WO 2005035856 A1 WO2005035856 A1 WO 2005035856A1 EP 2004008622 W EP2004008622 W EP 2004008622W WO 2005035856 A1 WO2005035856 A1 WO 2005035856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core
- sheath
- fibers
- nonwoven
- component
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
Definitions
- the invention relates to: a nonwoven fabric made of bicomponent fibers which is shrink-free or at most has a low shrinkage.
- Nonwovens containing bicomponent fibers have been known for a long time. These can be nonwovens made from so-called continuous fibers; but corresponding nonwovens made from staple fibers are also known.
- Bicomponent fibers are generally only used as an additive in the production of nonwovens, ie they are made with normal fibers, ie from fibers which consist of only one component, e.g. B. polyethylene terephthalate, mixed and then processed into a fleece, which is then thermally treated for binding and fixing at a higher temperature, for example at ' 180-220 °.
- normal fibers ie from fibers which consist of only one component, e.g. B. polyethylene terephthalate, mixed and then processed into a fleece, which is then thermally treated for binding and fixing at a higher temperature, for example at ' 180-220 °.
- the lower melting component of the bicomponent fiber acts as an adhesive and connects the fibers to each other. With this treatment, however, not only is the fibers bonded and thus the fleece solidified, but the fleece also shrinks considerably during this heat treatment.
- This shrinkage is disadvantageous in many ways.
- the shrinkage is often not uniform, so that there are irregularities in the structure and the width of the finished, fixed fleece is not constant over the entire length. Also, it is not always possible to predict how high the shrinkage will be. B. when cutting the wide fleece into individual narrower webs problems arise because the knives must be set to a certain distance and it can happen that the outer cut webs turn out too narrow. These webs can then only be treated as waste.
- Another consequence of the irregular shrinkage is that the basis weight of the nonwoven is not uniform or does not correspond to the target value.
- Japanese patent application JP 11050337 A2 describes a dimensionally stable nonwoven made of bicomponent fibers with a polyester core and a jacket made of polyolefin, which has a surface shrinkage of 2.1%.
- Japanese patent application JP 2001003256 A2 describes a nonwoven made of polyester-based bicomponent filaments which has a surface shrinkage of 4% at a temperature 30 ° C. below the melting temperature of the jacket (copolymer with melting temperatures of 130-180 ° C.). There is no reference to nonwovens that have a surface shrinkage of 0%, especially at higher consolidation temperatures.
- nonwovens which do not have the disadvantages mentioned above for fixing and binding, ie nonwovens based on bicomponent fibers which have no or at most negligible shrinkage.
- the object of the invention is therefore to provide such nonwovens.
- non-shrinking or only slightly shrinking non-woven fabric which is characterized in that the non-woven fabric is made up of staple fibers of the core sheath type, the core consisting of a polyester which has a higher melting point than the sheath component and the sheath Polybutylene terephthalate exists.
- the fleece is shrink-free and consists entirely of core sheath fibers and the core is made of polyethylene terephthalate and the sheath is made of polybutylene terephthalate.
- nonwoven contains core sheath staple fibers with polyethylene terephthalate as the core component and polybutylene terephthalate as the sheath component as well as up to 30% of other fibers as an admixture.
- Nonwovens which have been thermally treated at a temperature of 180 to 220 ° C. are preferred.
- the invention allows the production of nonwovens not only with the same width but also with the same basis weight over the entire length of the nonwoven, which is of great advantage for further processing.
- staple fibers can be used with conventional staple lengths, z. B. 28-80 mm.
- a bicomponent spinning machine was used to produce spun fabric with standard polyester in the core and polybutylene terephthalate in the jacket.
- the total throughput with a core / shell ratio of 50/50 was 570 g / min per spinning station with an 827 hole nozzle.
- the single spin titer set was 4.92 dtex.
- the take-off speed was 1400 m / min.
- the melt temperature of the polyester was 275 ° C. and that of the polybutylene terephthalate was 265 ° C.
- the spun filaments were cooled with an inside and outside air blowing over a blowing length of 40 ° C. Before being folded together, the filaments were prepared with a conventional finishing agent.
- the spun fabric was then presented to a conventional sliver mill and processed further.
- the stretching in the specified range especially in the specific case for a final titer of 2.2 dtex, was carried out at a stretching ratio of 2.55 between rotating rollers.
- the temperature of the rolls at which the stretching was initiated was 58 ° C.
- the fiber cable was mechanically crimped in a stuffer box crimping machine and then dried at 130 ° C. in a plate belt dryer.
- the fibers were cut using a conventional staple fiber cutting machine.
- the fibers were carded and the nonwovens were cut into areas of a defined size and 5 of these samples in a wire cage were subjected to a thermal treatment at 160 ° C. and 200 ° C. for 3 minutes.
- the area shrinkage results from the percentage difference of the area after the thermal treatment to the starting area.
- the nonwovens described had a surface shrinkage of 0% at both consolidation temperatures.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10343032A DE10343032B4 (de) | 2003-09-16 | 2003-09-16 | Schrumpffreies Vlies |
DE10343032.6 | 2003-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005035856A1 true WO2005035856A1 (de) | 2005-04-21 |
Family
ID=34398779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/008622 WO2005035856A1 (de) | 2003-09-16 | 2004-07-31 | Schrumpffreies vlies |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10343032B4 (de) |
WO (1) | WO2005035856A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006034730A1 (de) * | 2006-07-27 | 2008-01-31 | Carl Freudenberg Kg | Aufgussbeutel |
DE102006041772B4 (de) | 2006-09-04 | 2010-07-01 | Carl Freudenberg Kg | Aufgussbeutel und Verwendung desselben |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167418A (en) * | 1981-04-03 | 1982-10-15 | Kuraray Co Ltd | Heat bonding composite spun fiber |
JPH04343747A (ja) * | 1991-05-16 | 1992-11-30 | Toray Ind Inc | ソフトなポリエステル系不織布 |
JP2000248430A (ja) * | 1999-02-25 | 2000-09-12 | Toray Ind Inc | 潜在捲縮発現性ポリエステル繊維および製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2546537B1 (fr) * | 1983-05-25 | 1985-08-16 | Rhone Poulenc Fibre | Membrane d'etancheite et son procede de fabrication |
US5082720A (en) * | 1988-05-06 | 1992-01-21 | Minnesota Mining And Manufacturing Company | Melt-bondable fibers for use in nonwoven web |
DE4240516A1 (de) * | 1992-08-26 | 1994-03-03 | Freudenberg Carl Fa | Innenausstattungsteil für Fahrzeuge |
JPH1150337A (ja) * | 1997-07-29 | 1999-02-23 | Nippon Ester Co Ltd | 熱接着性複合繊維の製造方法 |
JP2001003256A (ja) * | 1999-06-22 | 2001-01-09 | Unitika Ltd | 長繊維不織布およびその製造方法 |
-
2003
- 2003-09-16 DE DE10343032A patent/DE10343032B4/de not_active Expired - Lifetime
-
2004
- 2004-07-31 WO PCT/EP2004/008622 patent/WO2005035856A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167418A (en) * | 1981-04-03 | 1982-10-15 | Kuraray Co Ltd | Heat bonding composite spun fiber |
JPH04343747A (ja) * | 1991-05-16 | 1992-11-30 | Toray Ind Inc | ソフトなポリエステル系不織布 |
JP2000248430A (ja) * | 1999-02-25 | 2000-09-12 | Toray Ind Inc | 潜在捲縮発現性ポリエステル繊維および製造方法 |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 011 (C - 145) 18 January 1983 (1983-01-18) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 195 (C - 1049) 16 April 1993 (1993-04-16) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) * |
Also Published As
Publication number | Publication date |
---|---|
DE10343032B4 (de) | 2011-12-01 |
DE10343032A1 (de) | 2005-05-04 |
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