EP0476193B1 - Stitch-stabilized nonwoven fabric - Google Patents

Stitch-stabilized nonwoven fabric Download PDF

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Publication number
EP0476193B1
EP0476193B1 EP90310260A EP90310260A EP0476193B1 EP 0476193 B1 EP0476193 B1 EP 0476193B1 EP 90310260 A EP90310260 A EP 90310260A EP 90310260 A EP90310260 A EP 90310260A EP 0476193 B1 EP0476193 B1 EP 0476193B1
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EP
European Patent Office
Prior art keywords
thread
stitches
bulkable
fabric
nonwoven fabric
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 - Lifetime
Application number
EP90310260A
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German (de)
English (en)
French (fr)
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EP0476193A1 (en
Inventor
Dimitri Peter Zafiroglu
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EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to DE1990615186 priority Critical patent/DE69015186T2/de
Publication of EP0476193A1 publication Critical patent/EP0476193A1/en
Application granted granted Critical
Publication of EP0476193B1 publication Critical patent/EP0476193B1/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/45—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by forming intermeshing loops or stitches from some of the fibres
    • 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
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • D04B21/165—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads with yarns stitched through one or more layers or tows, e.g. stitch-bonded 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
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/52—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by applying or inserting filamentary binding elements
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting

Definitions

  • This invention relates to a stitchbonded nonwoven fabric and a process for producing it by multi-needle stitching a nonwoven fibrous layer with two thread systems. More particularly, the invention concerns such a fabric and process for making it wherein one of the thread systems is a bulkable thread, the other is a substantially inextensible thread, and the threads are arranged in repeating patterns to form a drapable, durable, soft nonwoven fabric that is strong in both the longitudinal and transverse directions.
  • Nonwoven fabrics have long been used in a variety of applications.
  • Unbonded (i.e., not bonded) nonwoven fabrics most often have been used in applications that require little strength and durability. Such unbonded fabrics generally lack surface stability and often come apart when washed or laundered. To strengthen such fabrics, support layers often have been combined with the unbonded fabric. Strength has also been improved by bonding the fabric with a resin binder or binder fibers incorporated in the fabric. In addition to strengthening the fabric, bonding improves fabric stability and durability. However, bonding also makes the fabric stiff and boardy. Multi-needle stitching (i.e., stitchbonding) of unbonded nonwoven fabrics has also been used to increase fabric strength mainly in the direction of the stitching.
  • Multi-needle stitching machines such as “Arachne”, “Liba”, or “Mali” machines (including Malimo, Malipol and Maliwatt machines) have been used to insert stitches into a wide variety of fibrous substrates.
  • Such machines and some of the fabrics produced therewith are disclosed by K. W. Bahlo, "New Fabrics Without Weaving", Papers of the American Association of Textile Technology, Inc., pages 51-54 (November, 1965).
  • Other disclosures of the use of such machines appear for example, in Ploch et al, United States Patent 3,769,815, Hughes, United States Patent 3,649,428 and Product Licensing Index, Research Disclosure, "Stitchbonded products of continuous filament nonwoven webs", page 30 (June, 1968).
  • Multi-needle stitching of nonwoven fibrous layers with elastic thread (a type of bulkable thread) on one-bar stitchbonding machines is disclosed by Zafiroglu, United States Patent 4,773,238, to make dust cloths.
  • An object of this invention is to provide such an improvement.
  • the present invention provides a stitchbonded nonwoven fabric made with two thread systems.
  • the fabric comprises a nonwoven fibrous layer that is reinforced in a first direction with a bulkable thread which forms spaced-apart rows of stitches in the fibrous layer and is reinforced with substantially inextensible thread in a second direction which is at an angle of greater than 50 degrees with the first direction.
  • the bulkable and the substantially inextensible threads are each multi-needle stitched through the nonwoven fibrous layer.
  • the reinforcement in the second direction is provided by inlay stitches.
  • the weight of the threads amounts to no more than 20% of the total weight of the nonwoven fabric, but for economy, often 2 to 10%, and sometimes as little as 3 to 5%.
  • Suitable bulkable thread includes textured thread of polyester, nylon, polypropylene, or the like, and composite thread such as elastomeric yarn (e.g., spandex) in an extended state wrapped with inelastic nylon or polyester.
  • the stitchbonded nonwoven fabric has a unit weight in the range of 10 to 300 grams per square meter, preferably 20 to 200 g/m2.
  • the row spacing usually is in the range of 2 to 10 rows per centimeter, preferably 3 to 6 per cm.
  • the stitch spacing usually is in the range of 2 to 15 stitches/cm, preferably 4 to 12 per cm.
  • Bulking of the bulkable threads (a) increases entanglement of the threads with the fibrous layer and enhances fabric stability and durability, and (b) causes gathering of the fabric, which results in a softer hand, improved drape, and decreased stiffness.
  • the present invention also provides a process for making the above-described stitchbonded nonwoven fabric.
  • a fibrous layer weighing in the range of 15 to 150 grams per square meter, is fed to a multi-needle stitching machine equipped with a two-thread system.
  • the first thread system is a bulkable thread which is stitched into the fibrous layer in parallel rows of stitches at a spacing in the range of 2 to 8 rows per centimeter and with the stitches within each row having a spacing in the range of 1 to 7 stitches per centimeter, preferably 2 to 5 per cm.
  • the bulkable thread is stitched under sufficient tension so that, if the bulkable thread is a textured yarn, the textured yarn is essentially straight and, if the bulkable thread is wrapped elastomeric yarn, the wrapping thread is essentially straight.
  • the bulkable yarn reinforces the fabric in a first direction.
  • the second thread system is a substantially inextensible thread that is incorporated to provide reinforcement in a second direction which forms an angle of greater than 50 degrees with the first reinforcing direction.
  • the inextensible thread can be incorporated by stitching within the same ranges of the row spacing and stitch spacing as in the first thread system. In other embodiments of the process, the inextensible thread, rather than being stitched into the fibrous layer, is incorporated as inlay stitches.
  • the stitching thread is under sufficient tension to maintain, after stitching, its original length. After the stitching operation, tension on the stitching threads is released threads, the bulkable threads are bulked and the area of the fabric is thereby reduced by 5 to 80%.
  • the fabric is made from a fibrous layer and two thread systems, one thread system being of bulkable thread which provides reinforcement in a first direction, and the second thread system being of substantially inextensible thread which provides reinforcement in a second direction that is at an angle of at least 50 degrees with the first reinforcement direction.
  • fibrous layers are suitable for use in the present invention, such as batts of carded fibers, air-laid fiber batts, wood-pulp papers, lightly bonded and unbonded nonwoven sheets, and the like.
  • the term "fiber", as applied to the fibrous layer means staple fibers of textile denier, pulps, fibrids and the like.
  • the fibers can be natural fibers or of synthetic organic polymer.
  • the fibrous layer batts or sheets usually are supplied in wound-up rolls. If heavier fabrics are desired, two or more batts or sheets can be positioned upon each other to form the fibrous layer for subsequent stitching. However, a single batt or sheet is preferred for easier processing and lower cost.
  • the term "bulkable thread” refers to a thread or yarn which is “bulked” by being deformed out-of plane. The deformation is induced by releasing tension from the thread or by exposing the thread to chemical action, moisture and/or heat at a temperature of about 50 to 200°C.
  • gathered is used herein to describe the surface of the stitchbonded nonwoven fabric of the invention and to indicate that the final fabric area is no more than 95% of area of the fibrous layer from which it was made, (that is, the area before the fibrous layer was multi-needle stitched and/or bulked).
  • the stitching operation is performed with a conventional multi-needle stitching ("stitchbonding") machine, equipped to handle two yarn systems. Malimo or Liba stitching machines are particularly useful.
  • Substantially any strong bulkable thread is suitable as the stitching in the first direction.
  • the bulkable thread provides a force that causes the fibrous layer to contract or gather when the thread is subjected to a bulking treatment (e.g., exposure to moisture, steam, heat, or chemicals).
  • a particularly preferred bulkable thread is formed from spandex elastomeric yarn of high elongation and retractive power which has been wrapped with an inelastic, substantially inextensible yarn. Such threads are available commercially.
  • the bulkable thread is stitched into the sheet under substantial tension so that the substantially inextensible wrapping yarn is straight and so that the bulkable thread will retract during the bulking step to as little as 20 percent of its original length after bulking.
  • any substantially inextensible thread can be used for stitching in the second direction.
  • Inextensible threads of nylon or polyethylene terephthalate are preferred.
  • the substantially inextensible thread adds strength to the fabric in a direction that is at an angle of at least 50 degrees to the reinforcing direction of the bulkable thread stitching.
  • the substantially inextensible thread is substantially inextensible while being stitched and its length is not be substantially increased after stitching.
  • the substantially inextensible thread can be a bulkable thread which is substantially inextensible during the stitching but then retracts and becomes shorter and and as a result is extensible after bulking.
  • a preferred bulkable thread used in the capacity of a substantially inextensible thread is the aforementioned elastomeric yarn wrapped with inextensible yarn and stitched under tension sufficient to straighten the wrapping yarn.
  • the threads supplied by the two thread systems amount to no more than 20% of the weight of the stitchbonded fabric.
  • the weight of stitching thread often amounts to only 2 to 10% of the total fabric weight and sometimes as little as 3 to 5%.
  • the first system of bulkable thread forms rows of chain stitches in and along the length of the fibrous layer.
  • the bulkable thread forms a series of interlocked loops on one surface of the fibrous layer and a parallel series of zigzag tricot stitches on the other surface.
  • Such rows of stitches are typical of those made by a "Mali” or an "Arachne” or “Liba” multi-needle stitching machine.
  • chain stitches cause almost all gathering to be in the longitudinal direction of the stitched layer and tricot stitches cause gathering across the width as well as along the length of the fabric.
  • the second thread system provides multi-needle stitching and reinforcement in the second direction with substantially inextensible thread.
  • the thread forms chain stitches, tricot stitches, inlay stitches or any other commonly used stitching, with the proviso that the angle between reinforcing directions of the bulkable and inextensible threads is at an angle of at least 50 degrees.
  • the rows of stitches generally have a spacing in the range of 1 to 7 stitches per cm, preferably 2 to 5.
  • Chain stitching with bulkable thread is preferred in the first direction thread and "tricot" stitching with substantially inextensible thread is preferred in the second direction.
  • Figure 1 represents a stitchbonded fabric of the invention in which bulkable thread 10 is in the form of chain stitching in the strong direction of the starting nonwoven fibrous layer and inextensible thread 20 is in the form of 1-0,3-4 "3-across tricot" stitching in the weak direction of the nonwoven fibrous layer.
  • the angle between the reinforcing directions of the two thread systems is greater than 50 degrees. (The method of determining the angle is given hereinafter with regard to Figure 3.) For the fabric represented in Figure 1, the angle would be at least 72 degrees, if the stitch spacing and needle spacing were equal.
  • the inextensible threads are stitched, laid in or arrayed in the transverse (i.e., the usually weaker) direction of the fibrous nonwoven layer.
  • the transverse direction may be the strong direction of the fabric. Under such circumstances, it is often preferable to use the bulkable thread in the transverse direction to apply tricot or other patterned stitches.
  • Unit weight of the starting fibrous layer and of the final stitchbonded fabric are measured in accordance with ASTM D 3776-79.
  • the weight of thread per unit area of fabric is determined by removing and weighing the thread from a given area of fabric.
  • Fabric weight is determined by weighing a known area of sheet which was cut while it was flattened between plates.
  • Washability is determined by exposing a fabric sample to repeated washing and drying cycles in a home laundry automatic washer and tumble dryer and when applicable, recording the total number of cycles until failure (i.e., until the samples show tears, holes, or other signs of disintegration, or more than 5% weight loss).
  • the washing and drying is conducted in accordance with AATCC Test Method 135-1978 for washing and tumble drying.
  • AATCC is the American Association of Textile Chemists and Colorists.
  • Grab strengths are measured at 70°F and 65% relative humidity using an Instron tensile testing machine. Grab strength is determined in general accordance with ASTM Method D-1117-80, on a 4-inch (10.2 cm) wide by 6-inch (15.2 cm) long sample. A gauge length of 3 inches (7.6 cm), clamps having 1-inch (2.5 cm) wide jaws, and an elongation rate of 12 inches (30.5 cm) per minute are used. The grab strength is reported in pounds force. For each reported measurement, ten determinations were made in the machine direction (MD) of the fabric and ten were made in the transverse direction (TD) (i.e., perpendicular to the MD). The average of the MD and the TD measurements are reported separately.
  • MD machine direction
  • TD transverse direction
  • the "hand split" test is a subjective evaluation of the handling strength of a fabric.
  • the fabric to be tested is pressed on a smooth, flat surface with two thumbs touching and the thumbs are repeatedly drawn apart in an attempt to cause the fabric to split. If the fabric splits without stitching thread breakage, the fabric fails the test. If the fabric cannot be split without breaking the stitching thread, the fabric passes the test.
  • the angle at which the direction spaced apart rows of stitches formed by the first thread system intersects the second direction of the spaced apart rows formed by the second thread system can be determined by plane geometry from the stitch diagrams of the two thread systems.
  • the angles can also be determined by simple geometry by examining the straight line segments of the threads between courses with the fabric held in an extended (but not deformed) condition.
  • the direction of the spaced apart rows is the direction that the straight line portions of the threads travel in proceeding between successive courses. In warp knitting, these straight line segments are often referred to as the "floats" of the stitches.
  • Figure 2 shows an intersection between vertical floats 10 of chain stitches falling along the longitudinal axis (MD) of a fabric of the invention and floats 20 of the second thread system of that fabric.
  • the float and reinforcing directions coincide with each other.
  • the angles formed between the two directions of floats are “a” and “b” and the angle that the floats make with the transverse direction (TD) is “c".
  • the present invention requires that the angle between between the directions the two thread systems be greater than 50 degrees.
  • the angle "a” and "b” each must be greater than 50°.
  • fibrous starting layers are used to prepare the fabrics described in each example.
  • the fibrous layers range from the weakest and least durable wood-pulp paper of Example 1 which falls apart when soaked in water, to the fairly strong and durable, but not washable and launderable, point-bonded web of a blend of staple fibers of Example 5. Further specific details of the fibrous layers are given in each example.
  • two nonwoven fabrics of the invention are made from a fibrous layer of pure pine wood paper pulp containing no binder resins and nominally weighing 1.2 oz/yd2 (40.7 g/m2).
  • the samples of the invention (1-1 and 1-2) are stitchbonded with a two thread system, one of which supplies bulkable thread.
  • the stitchbonded samples are compared to the fibrous layer without stitching (A-1) and with stitchbonding that is outside the invention (A-2, A-3).
  • A-1 and 1-2 of the invention are highly suited for use as wet or dry wipe-cloths Table 1 below summarizes the preparation of the samples and their resultant properties.
  • A-1 through A-3 are comparison samples which lack adequate stitching to stabilize the fabric in accordance with the invention.
  • the 1-across tricot stitching is made with an angle of 39° between the threads of the two directions (i.e., angle alpha between the longitudinal direction of the row of chain stitches with their vertical floats and the float of the tricot stitches, as illustrated in Figure 1).
  • the 2-across stitching is made with an angle of 59° and the 4-across, with an angle of 73°. Results of the testing are reported in Table 1.
  • This example illustrates preparation of nonwoven fabric by multi-needle stitching a fibrous starting layer in the form of a reinforced paper of 1.2 oz/yd2 (40.7 g/m2) made from a mixture of 75 weight % paper pulp and 25% 1.35-den (1.5-dtex), 0.5-inch (1.27-cm) long fibers of polyethylene terephthalate.
  • Table 2 The construction and measured properties of the samples are summarized in Table 2 below.
  • Table 2 In contrast to the strength and washability of the samples of the invention 2-1, 2-2 and 2-3, all comparison samples failed to survive more than five washing cycles tests and all failed the hand splittability test. Note that comparison sample B-1 had no stitchbonding threads and B-2 and B-3 each had only one yarn system.
  • This example describes preparation of two stitchbonded samples of the invention (3-1 and 3-2) from a fibrous layer which is a 1.9 oz/yd2 (64.4 g/m2), spunlaced, two-layer reinforced paper, one layer being of pine wood paper pulp and amounting to 60 % of the composite weight and the other layer being of 1.35-den (1.5-dtex), 7/8-inch (2.2-cm) long fibers of polyethylene terephthalate and amounting to 40% of the composite weight.
  • a fibrous layer which is a 1.9 oz/yd2 (64.4 g/m2), spunlaced, two-layer reinforced paper, one layer being of pine wood paper pulp and amounting to 60 % of the composite weight and the other layer being of 1.35-den (1.5-dtex), 7/8-inch (2.2-cm) long fibers of polyethylene terephthalate and amounting to 40% of the composite weight.
  • two stitchbonded samples of the invention (4-1 and 4-2) are prepared with two yarn systems and a 1.2-oz/yd2 (40.7-g/m2) lightly spunlaced web of 7/8-inch (2.2-cm) long, 1.35-den (1.5-dtex)fibers of polyethylene terephthalate.
  • Three comparison samples are also prepared with the same fibrous layer: D-1 which has no stitching; samples D-2 which is stitched with only one yarn system; and D-3 which is stitched with two thread systems that do not provide the minimum angle between between the reinforcing directions of the stitching.
  • This example illustrates the advantages of the invention with stitchbonded fibrous layer which is point-bonded carded web.
  • the web is formed from a blend of 75 weight percent of 1.5-inch (3.8-cm) long, 1.5-den (1.7-dtex) acrylic fibers and 25 % of 3-inch (7.6-cm) long, 3-den (3.3-dtex) polyester fibers of lower melting temperature than the acrylic fibers.
  • the web was point bonded at 100 psi (689 kPa) and 160°C with a regular pattern of 625 points per in2 (96.9/cm2), each point having a diameter of 0.020 inch (0.05 mm). Two such samples of the invention, 5-1 and 5-2, are compared with three comparison samples.
  • the comparisons are: E-1, the point-bonded web without stitching; and E-2 and E-3, which are each stitched with only one thread system.
  • Table 5, below summarizes the construction and properties of the samples and again shows the clear advantages in strength, resistance to splitting and repeated washability of the fabrics of the invention over the comparison samples.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Knitting Of Fabric (AREA)
  • Sewing Machines And Sewing (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP90310260A 1989-09-13 1990-09-19 Stitch-stabilized nonwoven fabric Expired - Lifetime EP0476193B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1990615186 DE69015186T2 (de) 1990-09-19 1990-09-19 Durch Steppen stabilisiertes Gewebe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40657689A 1989-09-13 1989-09-13

Publications (2)

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EP0476193A1 EP0476193A1 (en) 1992-03-25
EP0476193B1 true EP0476193B1 (en) 1994-12-14

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EP90310260A Expired - Lifetime EP0476193B1 (en) 1989-09-13 1990-09-19 Stitch-stabilized nonwoven fabric

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EP (1) EP0476193B1 (ko)
JP (1) JP2972837B2 (ko)
KR (1) KR0133848B1 (ko)
CN (1) CN1050236A (ko)
AU (1) AU6259390A (ko)
CA (1) CA2025126C (ko)
GB (1) GB2236771B (ko)

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AU3004400A (en) * 1999-02-22 2000-09-14 Tietex International, Ltd. Stitchbonded upholstery fabric and process for making same
DE10034113A1 (de) * 2000-07-13 2002-01-31 Freudenberg Carl Fa Voluminöser Vliesstoff
JP2004256923A (ja) * 2003-02-24 2004-09-16 Du Pont Toray Co Ltd ストレッチを有する布帛
DK176051B1 (da) * 2004-01-26 2006-02-27 Lm Glasfiber As Fibermåtte og en metode til fremstilling af en fibermåtte
US8834984B2 (en) * 2009-12-22 2014-09-16 Tietex International, Ltd Stitch bonded wipe
CN104941320B (zh) * 2015-06-19 2017-05-31 苏州佳亿达电器有限公司 吸尘器用低阻力过滤片
CN104939752B (zh) * 2015-06-19 2017-09-26 苏州佳亿达电器有限公司 吸尘器用过滤片
US11220086B2 (en) 2018-04-13 2022-01-11 Amtex Innovations Llc Stitchbonded, washable nonwoven towels and method for making
US10822578B2 (en) 2018-06-01 2020-11-03 Amtex Innovations Llc Methods of washing stitchbonded nonwoven towels using a soil release polymer
US11884899B2 (en) 2018-06-01 2024-01-30 Amtex Innovations Llc Methods of laundering stitchbonded nonwoven towels using a soil release polymer
CN111719230A (zh) * 2020-02-28 2020-09-29 精密纺织有限责任公司 阻燃床垫芯帽及其制造方法
CN112064191A (zh) * 2020-09-10 2020-12-11 泉州市隆连亿鞋材科技有限公司 一种弹性缝编布及其制备方法

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US3649428A (en) * 1970-03-12 1972-03-14 Beacon Mfg Co Stitched composite nonwoven fabric having a self-bonded fibrous supporting layer and outer fibrous layers
US4682480A (en) * 1985-10-04 1987-07-28 Burlington Industries, Inc. Warp-knit, weft-inserted fabric with substrate and method and apparatus to produce same
US4737394A (en) * 1987-06-17 1988-04-12 E. I. Du Pont De Nemours And Company Article for absorbing oils
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Also Published As

Publication number Publication date
CN1050236A (zh) 1991-03-27
EP0476193A1 (en) 1992-03-25
GB2236771B (en) 1994-02-02
KR0133848B1 (ko) 1998-04-24
JP2972837B2 (ja) 1999-11-08
JPH03206162A (ja) 1991-09-09
CA2025126C (en) 2000-05-02
GB9019941D0 (en) 1990-10-24
KR910006542A (ko) 1991-04-29
CA2025126A1 (en) 1991-03-14
AU6259390A (en) 1991-03-28
GB2236771A (en) 1991-04-17

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