CA2156232C - Method for constructing a double face fabric - Google Patents
Method for constructing a double face fabric Download PDFInfo
- Publication number
- CA2156232C CA2156232C CA002156232A CA2156232A CA2156232C CA 2156232 C CA2156232 C CA 2156232C CA 002156232 A CA002156232 A CA 002156232A CA 2156232 A CA2156232 A CA 2156232A CA 2156232 C CA2156232 C CA 2156232C
- Authority
- CA
- Canada
- Prior art keywords
- fabric
- knit
- yarn
- layers
- double
- 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
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/34—Devices for cutting knitted fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/02—Pile fabrics or articles having similar surface features
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A method of constructing a double face fabric is provided. The first step in the method is to knit a three dimensional knit fabric which has a first fabric layer, a second fabric layer and a plurality of yarns that interconnect the two layers. The three dimensional knit fabric is prepared using a conventional double needle bar warp knitting machine. Then, the yarn connecting the two layers is cut, resulting in two pieces of fabric having a velvet surface on one side, and a flat knit surface on the other.
The flat knit surface is then raised by a conventional process such as napping, in order to form a pair of double face fabrics, each with a first velvet surface and a second fleece surface.
The flat knit surface is then raised by a conventional process such as napping, in order to form a pair of double face fabrics, each with a first velvet surface and a second fleece surface.
Description
METHOD FOR CONSTRUCTING A DOUBLE FACE FABRIC
Background Of The Invention This invention relates to a fabric that has a raised surface on both faces or sides, and more particularly to a method for making such fabric by utilizing a double needle bar warp knitting machine.
It is well known in the fabric field to use a warp knitting machine in the manufacture of velvet. A three-dimensional knit fabric is knit on a machine having two needle beds with multiple guide bars. Two warp knit fabrics with yarn connecting the two fabrics are formed (see U.S.
Patent No. 3,855,820). After knitting, the fabrics are split into two pile fabrics by cutting the yarn connecting them. Each of the two fabrics has a flat warp knit side and a pile side. The flat side is known as the technical back and the pile side is known as the technical face of the fabric (Raz, Dr. S.: "Warp Knitting Production," Verlag Melliand Textilberichte GmbH, Heidelberg).
Typically, the technical face is brushed to separate the individual fibers in each yarn bundle and create a face finished fabric often referred to as velvet. The flat side, the technical back, is typically not processed and remains in the as-knit state.
Because only one side of the fabric is face finished, its use is limited.to applications in which the technical back is unexposed. As an example, garments made with single sided face finished fabric with the pile to the outside must be lined to avoid contact of the harsher technical back with the wearer's skin.
It is generally understood in the textile community that double faced fabrics overcome the inherent disadvantag-es of single faced fabrics for end uses in which both sides are utilized.
Warp knit fabrics provide inherent technical features.
For example, they can be engineered to have as high a degree of dimensional stability and durability as woven fabrics, properties that are desirable in many end uses and that are not available in weft knit fabrics. Because the velvet on the pile side consists of individual fibers of yarn bundles that are anchored in the warp knit fabric, the velvet is more resilient than other pile fabrics in which the surface is raised by simply tearing fibers out of the stitch. This resilience is maintained, even after repeated laundering, with the result that the velvet look is maintained and fiber clumps are not formed. Warp knit fabrics made on double needle bar machines have the added benefit of providing enhanced thermal properties by control of fabric thickness and density. Warp knit fabrics made on tricot machines (see U.S. Patent No. 4,712,281) can also be face finished on both sides, but do not provide the range of thermal properties or resilience possible on double needle bar equipment.
Accordingly, it is desirable to provide fabric which overcomes the above disadvantages.
Summary Of The Invention Generally speaking, in accordance with the invention, a method of constructing a double face fabric is provided.
The first step in the method is to knit a three dimensional fabric using a conventional double needle bar warp knitting machine which has a first knit fabric layer, a second knit fabric layer and a plurality of yarns that interconnect the two knit layers. Then, the yarns connecting the two layers are cut, resulting in two pieces of fabric having a pile surface on one side (the technical face, the side that is cut), and a flat knit surface on the other (the technical back). The technical face is brushed to separate the indi-vidual fibers in each yarn bundle to create a velvet. The technical back of each fabric is raised by a conventional process such as napping to form two double face fabrics, each with a velvet surface on the technical face and a raised fleece surface on the technical back.
The double face fabric produced by the inventive method ~1~~23~
Background Of The Invention This invention relates to a fabric that has a raised surface on both faces or sides, and more particularly to a method for making such fabric by utilizing a double needle bar warp knitting machine.
It is well known in the fabric field to use a warp knitting machine in the manufacture of velvet. A three-dimensional knit fabric is knit on a machine having two needle beds with multiple guide bars. Two warp knit fabrics with yarn connecting the two fabrics are formed (see U.S.
Patent No. 3,855,820). After knitting, the fabrics are split into two pile fabrics by cutting the yarn connecting them. Each of the two fabrics has a flat warp knit side and a pile side. The flat side is known as the technical back and the pile side is known as the technical face of the fabric (Raz, Dr. S.: "Warp Knitting Production," Verlag Melliand Textilberichte GmbH, Heidelberg).
Typically, the technical face is brushed to separate the individual fibers in each yarn bundle and create a face finished fabric often referred to as velvet. The flat side, the technical back, is typically not processed and remains in the as-knit state.
Because only one side of the fabric is face finished, its use is limited.to applications in which the technical back is unexposed. As an example, garments made with single sided face finished fabric with the pile to the outside must be lined to avoid contact of the harsher technical back with the wearer's skin.
It is generally understood in the textile community that double faced fabrics overcome the inherent disadvantag-es of single faced fabrics for end uses in which both sides are utilized.
Warp knit fabrics provide inherent technical features.
For example, they can be engineered to have as high a degree of dimensional stability and durability as woven fabrics, properties that are desirable in many end uses and that are not available in weft knit fabrics. Because the velvet on the pile side consists of individual fibers of yarn bundles that are anchored in the warp knit fabric, the velvet is more resilient than other pile fabrics in which the surface is raised by simply tearing fibers out of the stitch. This resilience is maintained, even after repeated laundering, with the result that the velvet look is maintained and fiber clumps are not formed. Warp knit fabrics made on double needle bar machines have the added benefit of providing enhanced thermal properties by control of fabric thickness and density. Warp knit fabrics made on tricot machines (see U.S. Patent No. 4,712,281) can also be face finished on both sides, but do not provide the range of thermal properties or resilience possible on double needle bar equipment.
Accordingly, it is desirable to provide fabric which overcomes the above disadvantages.
Summary Of The Invention Generally speaking, in accordance with the invention, a method of constructing a double face fabric is provided.
The first step in the method is to knit a three dimensional fabric using a conventional double needle bar warp knitting machine which has a first knit fabric layer, a second knit fabric layer and a plurality of yarns that interconnect the two knit layers. Then, the yarns connecting the two layers are cut, resulting in two pieces of fabric having a pile surface on one side (the technical face, the side that is cut), and a flat knit surface on the other (the technical back). The technical face is brushed to separate the indi-vidual fibers in each yarn bundle to create a velvet. The technical back of each fabric is raised by a conventional process such as napping to form two double face fabrics, each with a velvet surface on the technical face and a raised fleece surface on the technical back.
The double face fabric produced by the inventive method ~1~~23~
may be used in a variety of applications, including coats, sweaters, blazers, blankets, throws and slippers. Either surface of the fabric may be worn against the skin or under-garment of the wearer. If the connecting yarn is treated to be hydrophilic, the velvet side may be worn on the inside and will wick liquid moisture away from the wearer's skin.
If the connecting yarn is treated to be water repellent, the velvet side may be worn on the outside to provide the wearer protection from rain. Alternatively, the double face fabric may be treated for durable water repellency by a conven-tional padding operation during finishing, in which event, either side may be worn on the outside.
Accordingly, it is an object of the invention to pro-vide a method for preparing a double face fabric.
Another object of the invention is to nap the flat side of the fabric made on a double needle bar warp knitting machine in order to form a double face fabric.
A further object of the invention is to provide a double face fabric for enhancing the transport of moisture away from the wearer's skin.
Still another object of the invention is to provide a double face fabric having durable water repellency.
Yet a further object of the invention is to provide a double face fabric having thermal and insulative properties.
Yet another object of the invention is to provide a double face fabric having a velvet surface whose appearance is unaltered even after repeated laundering.
Still other objects and advantages of the invention will in part be obvious, and will in part be apparent from the following description.
The invention accordingly comprises the several steps and the relation of one or more steps with respect to each of the others, and the material or materials having the fea-tures, properties, and relation of constituents which are exemplified in the following detailed disclosure, and the scope of the invention will be set forth in the claims.
~1~~~~~
If the connecting yarn is treated to be water repellent, the velvet side may be worn on the outside to provide the wearer protection from rain. Alternatively, the double face fabric may be treated for durable water repellency by a conven-tional padding operation during finishing, in which event, either side may be worn on the outside.
Accordingly, it is an object of the invention to pro-vide a method for preparing a double face fabric.
Another object of the invention is to nap the flat side of the fabric made on a double needle bar warp knitting machine in order to form a double face fabric.
A further object of the invention is to provide a double face fabric for enhancing the transport of moisture away from the wearer's skin.
Still another object of the invention is to provide a double face fabric having durable water repellency.
Yet a further object of the invention is to provide a double face fabric having thermal and insulative properties.
Yet another object of the invention is to provide a double face fabric having a velvet surface whose appearance is unaltered even after repeated laundering.
Still other objects and advantages of the invention will in part be obvious, and will in part be apparent from the following description.
The invention accordingly comprises the several steps and the relation of one or more steps with respect to each of the others, and the material or materials having the fea-tures, properties, and relation of constituents which are exemplified in the following detailed disclosure, and the scope of the invention will be set forth in the claims.
~1~~~~~
Brief Description of the Drawings For a fuller understanding of the invention, reference is made to the following description in connection with the attached drawings, in which:
FIG. 1 is a side view showing the loop structure of a pile fabric produced on a double needle bar warp knitting machine:
FIG. 2 is a side view in which knitting of a double needle bar fabric with six guide bars is shown; and FIG. 3 is a side view in which the splitting of a double needle bar fabric is shown.
Detailed Description of the Preferred Embodiment The double face fabric of the invention is prepared by first knitting a three dimensional knit fabric on a double needle bar warp knitting machine commonly used in the manu-facture of single faced velvet and well known in the art.
The three dimensional knit fabric includes a first fabric layer, a second fabric layer and a plurality of yarn or yarn elements interconnecting the two layers (Figure 1).
After fabric formation, the fabric may be dyed or printed, or the yarns that are used for the layers as well as to connect the layers may be dyed before fabric forma-tion. The yarns may be either a synthetic material such as polyester, acrylic, nylon or olefin, and may be spun or filament (textured or oriented), or natural fibers such as cotton or wool, or modified natural materials such as rayon or acetate. The synthetic yarn to connect the layers should be in the range of 0.3 to 6.0 denier per filament or per staple if spun yarn is used. The yarn connecting the layers 30. may have been rendered hydrophilic if wicking properties are required, or it may have been treated to enhance fabric finishing. The yarn for the layers may be any commercially available yarn since the layers have virtually no effect on the performance characteristics of the fabric.
After producing the three dimensional knit, the yarn connecting the two surfaces is cut with a splitter (Figures 2 and 3). The result is two single faced fabrics with a velvet on the technical face and a flat surface on the technical back.
Thereafter, the technical back of each of the fabric pieces is raised by a conventional process such as napping, brushing or sanding. Thus, this surface becomes a fleece with those attributes and advantages associated with such fabric.
Preferably, after raising the flat knit surface of each fabric piece, the raised surface can then be cleaned of loose fibers by additional brushing or napping and sheared to even the height therealong. Each resulting fabric piece thus comprises a velvet fabric surface on one side and a raised fleece surface that is a non-pilling functional velour on the other.
It will thus be seen that the objects set forth above, and those made apparent from the preceding description, are efficiently attained, and since certain changes may be made in both the process and products described above without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific fea-tures of the invention herein described, and all statements of the scope of the invention which, as a matter of lan-guage, might be said to fall therebetween.
FIG. 1 is a side view showing the loop structure of a pile fabric produced on a double needle bar warp knitting machine:
FIG. 2 is a side view in which knitting of a double needle bar fabric with six guide bars is shown; and FIG. 3 is a side view in which the splitting of a double needle bar fabric is shown.
Detailed Description of the Preferred Embodiment The double face fabric of the invention is prepared by first knitting a three dimensional knit fabric on a double needle bar warp knitting machine commonly used in the manu-facture of single faced velvet and well known in the art.
The three dimensional knit fabric includes a first fabric layer, a second fabric layer and a plurality of yarn or yarn elements interconnecting the two layers (Figure 1).
After fabric formation, the fabric may be dyed or printed, or the yarns that are used for the layers as well as to connect the layers may be dyed before fabric forma-tion. The yarns may be either a synthetic material such as polyester, acrylic, nylon or olefin, and may be spun or filament (textured or oriented), or natural fibers such as cotton or wool, or modified natural materials such as rayon or acetate. The synthetic yarn to connect the layers should be in the range of 0.3 to 6.0 denier per filament or per staple if spun yarn is used. The yarn connecting the layers 30. may have been rendered hydrophilic if wicking properties are required, or it may have been treated to enhance fabric finishing. The yarn for the layers may be any commercially available yarn since the layers have virtually no effect on the performance characteristics of the fabric.
After producing the three dimensional knit, the yarn connecting the two surfaces is cut with a splitter (Figures 2 and 3). The result is two single faced fabrics with a velvet on the technical face and a flat surface on the technical back.
Thereafter, the technical back of each of the fabric pieces is raised by a conventional process such as napping, brushing or sanding. Thus, this surface becomes a fleece with those attributes and advantages associated with such fabric.
Preferably, after raising the flat knit surface of each fabric piece, the raised surface can then be cleaned of loose fibers by additional brushing or napping and sheared to even the height therealong. Each resulting fabric piece thus comprises a velvet fabric surface on one side and a raised fleece surface that is a non-pilling functional velour on the other.
It will thus be seen that the objects set forth above, and those made apparent from the preceding description, are efficiently attained, and since certain changes may be made in both the process and products described above without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific fea-tures of the invention herein described, and all statements of the scope of the invention which, as a matter of lan-guage, might be said to fall therebetween.
Claims (6)
1. A method of constructing a double face fabric comprising the steps of:
knitting a three dimensional knit fabric on a double bar knitting machine having a first fabric layer, a second fabric layer, and a plurality of yarn fibers interconnecting the two fabric layers;
cutting along the plurality of yarn fibers to separate said fabric layers in order to form a pair of fabric pieces each with a first velvet surface defined by said cut yarn fibers and a second opposite flat surface: and raising the second flat surface in order for said second fabric surface to be fleeced.
knitting a three dimensional knit fabric on a double bar knitting machine having a first fabric layer, a second fabric layer, and a plurality of yarn fibers interconnecting the two fabric layers;
cutting along the plurality of yarn fibers to separate said fabric layers in order to form a pair of fabric pieces each with a first velvet surface defined by said cut yarn fibers and a second opposite flat surface: and raising the second flat surface in order for said second fabric surface to be fleeced.
2. The method of Claim 1, further including the step of brushing and shearing the fleeced fabric surface of each of the fabric pieces.
3. The method of Claim 1, wherein said fabric is made from synthetic yarn selected from the group consisting of polyester, acrylic, nylon and olefin.
4. The method of Claim 1, wherein said fabric is made from natural yarn selected from the group consisting of wool and cotton.
5. The method of Claim 1, wherein said fabric is made from modified natural materials selected from the group consisting of rayon and acetate.
6. The method of Claim 1, wherein said raising step comprises napping said second flat surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50780095A | 1995-07-26 | 1995-07-26 | |
| US08/507,800 | 1995-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2156232A1 CA2156232A1 (en) | 1997-01-27 |
| CA2156232C true CA2156232C (en) | 2005-05-10 |
Family
ID=24020186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002156232A Expired - Fee Related CA2156232C (en) | 1995-07-26 | 1995-08-16 | Method for constructing a double face fabric |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0756030B1 (en) |
| AT (1) | ATE231573T1 (en) |
| CA (1) | CA2156232C (en) |
| DE (1) | DE69529460T2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654002A (en) * | 2013-11-26 | 2014-03-26 | 河南海鑫毛毯纺织有限公司 | Moon-curved woven blanket manufacturing technology |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020158A (en) * | 1999-07-02 | 2001-01-23 | Malden Mills Ind Inc | Double face velour cloth product having improved thermal insulation performance |
| ES2176072B1 (en) * | 2000-03-08 | 2004-02-01 | S D Genoves Miralles S L | PROCEDURE FOR MANUFACTURE OF TWO-SIDED HAIR FABRICS AND FABRIC OBTAINED WITH THIS PROCEDURE |
| DE602005024059D1 (en) * | 2005-09-01 | 2010-11-18 | Corp As | METHOD FOR PRODUCING FLEECE WITH FRONT AND BACK DIFFERENT FIBERS |
| CN102352545B (en) * | 2011-07-01 | 2013-11-06 | 临沂绿因工贸有限公司 | Developing process of water wave wool blanket |
| CN107435185A (en) * | 2017-06-28 | 2017-12-05 | 任新庄 | A kind of preparation method of wool felt |
| IT201700107672A1 (en) * | 2017-09-26 | 2019-03-26 | Ger Elettr S R L | Improved machine for the treatment, handling and / or management of laminar products. |
| CN107723918A (en) * | 2017-10-31 | 2018-02-23 | 宿迁市神龙家纺有限公司 | One kind is soaped mould proof warp knitted blanket and its production technology |
| US12281419B2 (en) | 2018-10-17 | 2025-04-22 | Dmitry Valeryevich Marchenkov | Three-dimensional knitted material |
| CN109371560A (en) * | 2018-11-13 | 2019-02-22 | 中原工学院 | Method for making 3D wigs by warp-knitted spacer fabrics with different thicknesses |
| CN109505056A (en) * | 2018-11-13 | 2019-03-22 | 中原工学院 | A kind of two-needle bar shapes the preparation facilities and method of 3D Multifunctional composite carpet entirely |
| CN111088593A (en) * | 2019-12-28 | 2020-05-01 | 宁波大军长毛绒有限公司 | Preparation process of rabbit hair-imitated fabric and glue used by preparation process |
| CN111648020B (en) * | 2020-04-17 | 2024-08-23 | 东莞超盈纺织有限公司 | Sports lace fabric with adjustable moisture conduction in fabric thickness direction |
| CN112725980A (en) * | 2020-12-18 | 2021-04-30 | 常州均悦纺织科技有限公司 | Production method of thin type burred cloth and thin type burred cloth manufactured by production method |
| CN112981693A (en) * | 2021-02-24 | 2021-06-18 | 浙江真爱时尚家居有限公司 | Warp knitting and cut pile production method of Raschel blanket |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1286258B (en) * | 1966-01-14 | 1969-01-02 | Guesken Fa J | Process for the production of fluffy warp knitted fabrics for blankets or the like. |
| DE2226005A1 (en) | 1972-05-29 | 1973-12-13 | Mayer Textilmaschf | DOUBLE-CONTOURED RUSHING MACHINE |
| FR2211019A5 (en) * | 1972-11-21 | 1974-07-12 | Florin Michel | Knitted fabric with reinforcing yarn - and a pile yarn which is brushed to form a pile |
| DE2857400C3 (en) * | 1978-07-24 | 1981-10-29 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Process for the production of two pile fabric webs on a warp knitting machine with two needle bars |
| US4712281A (en) | 1986-10-30 | 1987-12-15 | Guilford Mills, Inc. | Napped warp-knitted fabric and method of producing same |
| FR2705974A1 (en) * | 1993-06-02 | 1994-12-09 | Eurl Ertec | Double-sided discarded knit and method for obtaining it. |
-
1995
- 1995-08-16 CA CA002156232A patent/CA2156232C/en not_active Expired - Fee Related
- 1995-08-24 AT AT95305933T patent/ATE231573T1/en not_active IP Right Cessation
- 1995-08-24 DE DE69529460T patent/DE69529460T2/en not_active Expired - Lifetime
- 1995-08-24 EP EP95305933A patent/EP0756030B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654002A (en) * | 2013-11-26 | 2014-03-26 | 河南海鑫毛毯纺织有限公司 | Moon-curved woven blanket manufacturing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0756030B1 (en) | 2003-01-22 |
| EP0756030A1 (en) | 1997-01-29 |
| CA2156232A1 (en) | 1997-01-27 |
| DE69529460T2 (en) | 2003-10-02 |
| DE69529460D1 (en) | 2003-02-27 |
| ATE231573T1 (en) | 2003-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140818 |