CA2395462C - Thermal nonwoven fabric - Google Patents
Thermal nonwoven fabric Download PDFInfo
- Publication number
- CA2395462C CA2395462C CA002395462A CA2395462A CA2395462C CA 2395462 C CA2395462 C CA 2395462C CA 002395462 A CA002395462 A CA 002395462A CA 2395462 A CA2395462 A CA 2395462A CA 2395462 C CA2395462 C CA 2395462C
- Authority
- CA
- Canada
- Prior art keywords
- thermofleece
- endless filaments
- multicomponent
- filaments
- manufacture
- 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 - Fee Related
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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/02—Linings
- A41D27/06—Stiffening-pieces
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to a thermal nonwoven fabric consisting of a microfilament nonwoven fabric having a weight of 60 to 300 g/m2 and a resistance to tearing > 150 N. The nonwoven fabric consists of melt-spun, drafted endless filaments that consist of several components and are directly placed to form a nonwoven, whereby the titre amounts to 1.5 to 5 dtex. After optional pre-bonding, at least 80 % of the endless filaments that consist of several components are split to form micro-endless filaments having a titre of 0.1 to 1.0 dtex and are bonded.
Description
THERMAL NONWOVEN FABRIC
DESCRIPTION
The invention relates to a thermofleece consisting of a microfilament nonwoven with surface weights of 60-300 g/mZ and a tear resistance > 150 N.
Very different demands are placed in the textile industry on nonwoven materials used in the manufacture of winter clothing. Apart from the stress resistance, which is expressed in the tear resistance of the material used, good workability, drapability and softness, as well as, depending on the intended use, the smallest possible material thickness with at the same time a good heat insulation capacity are of interest. So far, materials with a good heat insulation capacity are woven from different fibre mixtures or felts of animal hair are produced. While the woven materials have a tendency to unravel or fray and therefore must be hemmed, the felt materials have a very high surface weight. With woven materials, one must also always consider the orientation of the fabric with respect to its stress resistance.
It is an object of the invention to provide a low cost thermofleece which has a breaking strength or tear resistance > 150 N as well as a process for its manufacture.
This object is achieved in accordance with the invention by a thermofleece which consists of a microfilament nonwoven with basis weights or surface weights of 60-300 g/m2 as well as a tear resistance >150 N, whereby the microfilament nonwoven consists of meltspun, stretched multicomponent endless filaments which are immediately laid down in a fleece and have a titre of 1.5-5 dtex, and whereby the multicomponent endless filaments, optionally after a preconsolidation, are split at least to 80% into micro endless filaments with a titre of 0.1-1.0 dtex and consolidated.
With the thermofleece in accordance with the invention, a hemming is no longer necessary because of the endless filaments and no unraveling occurs.
The thermofleece is preferably one in which the nonwoven consists of meltspun, aerodynamically stretched multicomponent endless filaments laid down immediately into a fleece and having a titre of 1.5-3 dtex and the multicomponent endless filaments, optionally after a preconsolidation, are split at least to 80% into micro endless filaments with a titre of 0.1-0.8 dtex and consolidated. The thermofleece has an isotropic filament distribution in the fleece. Thus, a consideration of the machine direction during the cutting of the thermofleece is not required.
The thermofleece is preferably one wherein the multicomponent endless filament is a bicomponent endless filament made of two incompatible polymers, especially a polyester and a polyamide. Such a bicomponent endless filament has a good splittability into micro endless filaments and causes an advantageous ratio of strength to surface weight. At the same time, the thermofleece in accordance with the invention is wrinkle resistant, easily washable and fast drying, which means easy care, because of the polymers used and their filament structure.
The thermofleece is preferably one in which the multicomponent endless filaments have a cross-section with an orange-type multisegment structure also called "pie"
structure whereby the segments altematingly contain respectively one of the two incompatible polymers. Apart from this orange-type multisegment structure of the multicomponent endless filaments, a side by side (s/s) segment placement of the incompatible polymers in the multicomponent endless filament is also possible, which preferably is used for the production of crimped filaments.
Such segment placements of the incompatible polymers in the multicomponent endless filament have proven to be very easily splittable. The thermofleece has a very good heat insulation capacity in relation to its thickness and/or the weight, so that soft and warm winter clothing can be produced especially with subsequent treatment steps such as roughing or sanding.
The thermofleece is preferably one in which one of the incompatible polymers forming the multicomponent endless filaments includes an additive, such as color pigments, permanently active anti-statics, fungicides, bactericides, acaricides and/or additives which influence the hydrophilic or hydrophobic properties in amounts up to 10% per weight. The thermofleece consisting of spun colored fibres has a very good wash fastness. Furthermore, static charging can be reduced or prevented by the additives and the humidity transferred properties can be improved. The thermofleece has very good care properties with respect to its washability and a short drying time.
DESCRIPTION
The invention relates to a thermofleece consisting of a microfilament nonwoven with surface weights of 60-300 g/mZ and a tear resistance > 150 N.
Very different demands are placed in the textile industry on nonwoven materials used in the manufacture of winter clothing. Apart from the stress resistance, which is expressed in the tear resistance of the material used, good workability, drapability and softness, as well as, depending on the intended use, the smallest possible material thickness with at the same time a good heat insulation capacity are of interest. So far, materials with a good heat insulation capacity are woven from different fibre mixtures or felts of animal hair are produced. While the woven materials have a tendency to unravel or fray and therefore must be hemmed, the felt materials have a very high surface weight. With woven materials, one must also always consider the orientation of the fabric with respect to its stress resistance.
It is an object of the invention to provide a low cost thermofleece which has a breaking strength or tear resistance > 150 N as well as a process for its manufacture.
This object is achieved in accordance with the invention by a thermofleece which consists of a microfilament nonwoven with basis weights or surface weights of 60-300 g/m2 as well as a tear resistance >150 N, whereby the microfilament nonwoven consists of meltspun, stretched multicomponent endless filaments which are immediately laid down in a fleece and have a titre of 1.5-5 dtex, and whereby the multicomponent endless filaments, optionally after a preconsolidation, are split at least to 80% into micro endless filaments with a titre of 0.1-1.0 dtex and consolidated.
With the thermofleece in accordance with the invention, a hemming is no longer necessary because of the endless filaments and no unraveling occurs.
The thermofleece is preferably one in which the nonwoven consists of meltspun, aerodynamically stretched multicomponent endless filaments laid down immediately into a fleece and having a titre of 1.5-3 dtex and the multicomponent endless filaments, optionally after a preconsolidation, are split at least to 80% into micro endless filaments with a titre of 0.1-0.8 dtex and consolidated. The thermofleece has an isotropic filament distribution in the fleece. Thus, a consideration of the machine direction during the cutting of the thermofleece is not required.
The thermofleece is preferably one wherein the multicomponent endless filament is a bicomponent endless filament made of two incompatible polymers, especially a polyester and a polyamide. Such a bicomponent endless filament has a good splittability into micro endless filaments and causes an advantageous ratio of strength to surface weight. At the same time, the thermofleece in accordance with the invention is wrinkle resistant, easily washable and fast drying, which means easy care, because of the polymers used and their filament structure.
The thermofleece is preferably one in which the multicomponent endless filaments have a cross-section with an orange-type multisegment structure also called "pie"
structure whereby the segments altematingly contain respectively one of the two incompatible polymers. Apart from this orange-type multisegment structure of the multicomponent endless filaments, a side by side (s/s) segment placement of the incompatible polymers in the multicomponent endless filament is also possible, which preferably is used for the production of crimped filaments.
Such segment placements of the incompatible polymers in the multicomponent endless filament have proven to be very easily splittable. The thermofleece has a very good heat insulation capacity in relation to its thickness and/or the weight, so that soft and warm winter clothing can be produced especially with subsequent treatment steps such as roughing or sanding.
The thermofleece is preferably one in which one of the incompatible polymers forming the multicomponent endless filaments includes an additive, such as color pigments, permanently active anti-statics, fungicides, bactericides, acaricides and/or additives which influence the hydrophilic or hydrophobic properties in amounts up to 10% per weight. The thermofleece consisting of spun colored fibres has a very good wash fastness. Furthermore, static charging can be reduced or prevented by the additives and the humidity transferred properties can be improved. The thermofleece has very good care properties with respect to its washability and a short drying time.
The process in accordance with the invention for the manufacture of a thermofleece material consists in that the multicomponent endless filaments are spun from the melt, stretched and immediately laid into a fleece, a preconsolidation is carried out and the fleece material is consolidated by high pressure fluid jets and simultaneously split into micro endless filaments with a titre of 0.1-1.0 dtex, preferably into micro endless filaments with a titre of 0.1-0.8 dtex. The thermofleece so obtained is very even with respect to its thickness, has an isotropic thread distribution, has no propensity to delaminate and is characterized by high module values.
The process for the manufacture of the thermofleece is preferably carried out in such a manner that the consolidation and splitting of the micro component endless filaments is carried out such that the preconsolidated fleece material is impacted at least one on each side by high pressure water jets. The thermofleece thereby has a good surface and a degree of splitting of the micro component endless filaments >80%.
A process is especially preferred in which the multicomponent endless filaments are spin colored. The binding of the pigments into the polymer filaments leads to exceptional wash fastness.
The thermofleece manufactured according to the invention is especially used for the manufacture of inner pockets, inner lining materials or upper materials. It is further suited for use as wadding or padding.
Example 1 A filament mat with a surface weight of 120 g/mZ is produced from a polyester-polyamide (PES-PA) bicomponent endless filament and on both sides subjected to a water jet needling at pressures up to 230 bar. The bicomponent endless filaments after the water jet needling, which leads to a simultaneous splitting of the starting filaments, have a titre of 1.0 dtex. The micro endless filament nonwoven obtained has a water vapor pass-through index iNT of 0.56.
The heat insulation capacity expressed by the heat transfer resistance Rt is 42.5 x 10-3 mZK/W and the water vapor pass-through resistance Re, is 4.58 m2Pa/W.
The process for the manufacture of the thermofleece is preferably carried out in such a manner that the consolidation and splitting of the micro component endless filaments is carried out such that the preconsolidated fleece material is impacted at least one on each side by high pressure water jets. The thermofleece thereby has a good surface and a degree of splitting of the micro component endless filaments >80%.
A process is especially preferred in which the multicomponent endless filaments are spin colored. The binding of the pigments into the polymer filaments leads to exceptional wash fastness.
The thermofleece manufactured according to the invention is especially used for the manufacture of inner pockets, inner lining materials or upper materials. It is further suited for use as wadding or padding.
Example 1 A filament mat with a surface weight of 120 g/mZ is produced from a polyester-polyamide (PES-PA) bicomponent endless filament and on both sides subjected to a water jet needling at pressures up to 230 bar. The bicomponent endless filaments after the water jet needling, which leads to a simultaneous splitting of the starting filaments, have a titre of 1.0 dtex. The micro endless filament nonwoven obtained has a water vapor pass-through index iNT of 0.56.
The heat insulation capacity expressed by the heat transfer resistance Rt is 42.5 x 10-3 mZK/W and the water vapor pass-through resistance Re, is 4.58 m2Pa/W.
Claims (16)
1. Thermofleece for heat insulation consisting of a microfilament nonwoven with basis weights of 60-300 g/m2 and a breaking strength >150 N, whereby the nonwoven consists of meltspun, aerodynamically stretched multicomponent endless filaments immediately laid down in a fleece and having a titre of 1.5-5 dtex and at least 80% of the multicomponent endless filaments being split by high pressure fluid jets into micro endless filaments with a titre of 0.1-1.0 dtex and consolidated, wherein the thermofleece has an isotropic filament distribution in the fleece.
2. Thermofleece according to claim 1, characterized in that the multicomponent endless filament is a bicomponent endless filament of two incompatible polymers.
3. Thermofleece according to one of claims 1 to 2, characterized in that the multicomponent endless filaments have a cross-section with orange-type multisegment structure, whereby the segments alternatingly respectively include one of the two incompatible polymers, or have a side-by-side structure.
4. Thermofleece according to claim 3, characterized in that two sides of the thermofleece material have a different segment structure.
5. Thermofleece according to claim 2, characterized in that at least one of the incompatible polymers forming the multicomponent endless filament includes an additive.
6. Thermofleece according to claim 5, wherein the additive is color pigments, permanently active antistatics, fungicides, bactericides, acaricides or additives influencing the hydrophilic or hydrophobic properties added in amounts of up to 10% by weight.
7. Process for the manufacture of a thermofleece for heat insulation characterized in that the multicomponent endless filaments are spun from a melt, stretched and immediately laid down in a fleece, and the nonwoven is consolidated by high pressure fluid jets, as well as simultaneously split into micro endless filaments with a titre of 0.1-1.0 dtex, and a degree of splitting of >80%.
8. Process according to claim 7 further comprising the step of a preconsolidation of the filaments.
9. Process according to claim 8, characterized in that the splitting of the multicomponent endless filaments is carried out such that the preconsolidated nonwoven is impacted at least once from each side by high pressure fluid jets.
10. Process according to any one of claims 7 to 9, characterized in that the dyeing of the multicomponent endless filaments is carried out by spin coloring.
11. Process according to any one of claims 7 to 10, characterized in that two spinning beams are used of which one produces multicomponent endless filaments with a pie segment structure and the other produces those with a side-by-side segment structure.
12. Thermofleece according to any one of claims 1 to 5, characterized in that it is used for the manufacture of inner liner materials.
13. Thermofleece according to any one of claims 1 to 5, characterized in that it is used for the manufacture of upper materials.
14. Thermofleece according to any one of claims 1 to 5, characterized in that it is used for the manufacture of inner pockets.
15. Thermofleece according to any one of claims 1 to 5, characterized in that it is used for the manufacture of wadding.
16. Thermofleece according to any one of claims 1 to 5, characterized in that it is used for the manufacture of padding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19962359.7 | 1999-12-23 | ||
| DE1999162359 DE19962359B4 (en) | 1999-12-23 | 1999-12-23 | Thermo nonwoven |
| PCT/EP2000/011461 WO2001048295A1 (en) | 1999-12-23 | 2000-11-17 | Thermal nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2395462A1 CA2395462A1 (en) | 2001-07-05 |
| CA2395462C true CA2395462C (en) | 2009-01-13 |
Family
ID=7934053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002395462A Expired - Fee Related CA2395462C (en) | 1999-12-23 | 2000-11-17 | Thermal nonwoven fabric |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1252384B1 (en) |
| CN (1) | CN100383308C (en) |
| AU (1) | AU1702801A (en) |
| CA (1) | CA2395462C (en) |
| DE (2) | DE19962359B4 (en) |
| WO (1) | WO2001048295A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50306052D1 (en) * | 2003-10-16 | 2007-02-01 | Kannegiesser Garment & Textile | Method for reinforcing textile fabrics |
| DE102005015550C5 (en) * | 2005-04-04 | 2013-02-07 | Carl Freudenberg Kg | Use of a thermally bonded nonwoven fabric |
| CN101219307B (en) * | 2007-09-27 | 2010-05-19 | 上海博格工业用布有限公司 | Method for manufacturing non-woven filter material combined of filature fleece formation and water fluid jet reinforce |
| DE202008018139U1 (en) | 2007-10-26 | 2011-12-13 | Hänsel Textil GmbH | Textile fabric |
| CN107964802B (en) * | 2017-11-03 | 2020-07-31 | 江苏尚科聚合新材料有限公司 | Orange segment type artificial leather and preparation method thereof |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0749619B2 (en) * | 1990-04-12 | 1995-05-31 | ユニチカ株式会社 | Entangled nonwoven fabric and method for producing the same |
| US5718972A (en) * | 1992-10-05 | 1998-02-17 | Unitika, Ltd. | Nonwoven fabric made of fine denier filaments and a production method thereof |
| TW246699B (en) * | 1992-10-05 | 1995-05-01 | Unitika Ltd | |
| FR2705698B1 (en) * | 1993-04-22 | 1995-06-30 | Freudenberg Spunweb Sa | Method of manufacturing a nonwoven web consisting of continuous filaments bonded together and the web thus obtained. |
| US5759926A (en) * | 1995-06-07 | 1998-06-02 | Kimberly-Clark Worldwide, Inc. | Fine denier fibers and fabrics made therefrom |
| US5672415A (en) * | 1995-11-30 | 1997-09-30 | Kimberly-Clark Worldwide, Inc. | Low density microfiber nonwoven fabric |
| FR2749860B1 (en) * | 1996-06-17 | 1998-08-28 | Freudenberg Spunweb Sa | NON WOVEN TABLECLOTH FORMED OF VERY THIN CONTINUOUS FILAMENTS |
| US6200669B1 (en) * | 1996-11-26 | 2001-03-13 | Kimberly-Clark Worldwide, Inc. | Entangled nonwoven fabrics and methods for forming the same |
| US5970583A (en) * | 1997-06-17 | 1999-10-26 | Firma Carl Freudenberg | Nonwoven lap formed of very fine continuous filaments |
| JPH11217757A (en) * | 1998-01-30 | 1999-08-10 | Unitika Ltd | Staple fiber nonwoven fabric and its production |
| JP3294558B2 (en) * | 1998-10-05 | 2002-06-24 | 富士通株式会社 | Subscriber equipment of burst optical transmission system |
| DE19934442C2 (en) * | 1999-07-26 | 2001-09-20 | Freudenberg Carl Fa | Process for producing a nonwoven and nonwoven for producing cleanroom protective clothing |
-
1999
- 1999-12-23 DE DE1999162359 patent/DE19962359B4/en not_active Expired - Fee Related
-
2000
- 2000-11-17 EP EP00979597A patent/EP1252384B1/en not_active Expired - Lifetime
- 2000-11-17 DE DE50012739T patent/DE50012739D1/en not_active Expired - Fee Related
- 2000-11-17 AU AU17028/01A patent/AU1702801A/en not_active Abandoned
- 2000-11-17 WO PCT/EP2000/011461 patent/WO2001048295A1/en active IP Right Grant
- 2000-11-17 CN CNB008175330A patent/CN100383308C/en not_active Expired - Fee Related
- 2000-11-17 CA CA002395462A patent/CA2395462C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1413276A (en) | 2003-04-23 |
| DE19962359B4 (en) | 2004-07-08 |
| WO2001048295A1 (en) | 2001-07-05 |
| CA2395462A1 (en) | 2001-07-05 |
| EP1252384A1 (en) | 2002-10-30 |
| EP1252384B1 (en) | 2006-05-10 |
| CN100383308C (en) | 2008-04-23 |
| AU1702801A (en) | 2001-07-09 |
| DE50012739D1 (en) | 2006-06-14 |
| DE19962359A1 (en) | 2001-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |