EP0854213A1 - Fibre composite thermofusible et tissus non-tissés et produits absorbants obtenus à partir de celle-ci - Google Patents

Fibre composite thermofusible et tissus non-tissés et produits absorbants obtenus à partir de celle-ci Download PDF

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Publication number
EP0854213A1
EP0854213A1 EP98100922A EP98100922A EP0854213A1 EP 0854213 A1 EP0854213 A1 EP 0854213A1 EP 98100922 A EP98100922 A EP 98100922A EP 98100922 A EP98100922 A EP 98100922A EP 0854213 A1 EP0854213 A1 EP 0854213A1
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Prior art keywords
component
heat
composite fiber
melting
percent
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EP98100922A
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German (de)
English (en)
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EP0854213B1 (fr
Inventor
Mitsuru Kojima
Yukinori Kataoka
Masayasu Suzuki
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JNC Corp
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Chisso Corp
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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
    • D04H3/14—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
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent

Definitions

  • the present invention relates to a heat-fusible composite fiber having a profiled cross-section, and to non-woven fabrics and absorbent products produced from such a composite fiber.
  • the present invention relates to a polyolefin-based heat-fusible composite fiber having a profiled cross-section, requiring a low heat-treatment temperature for producing non-woven fabrics, and having an excellent hiding property; and to non-woven fabrics and absorbent products produced from such a composite fiber.
  • Non-woven fabrics manufactured from a low-melting-point resin serving as the sheath component and a high-melting-point resin serving as the core component have been well received for their properties such as feeling (touch) and non-woven tenacity, and have widely been used as the surface materials for hygienic products such as paper diapers and sanitary napkins.
  • such non-woven fabrics are typically manufactured by processing a heat-fusible composite fiber into a web through carding or air-flow opening, then melting the sheath component by heat and pressure and bonding fiber intermingling points.
  • typical non-woven fabrics can be easily produced from long fibers by spun bonding.
  • Long fibers discharged from a spinneret are typically introduced into an air sucker or the like, stretched and elongated, opened, accumulated on a collecting conveyor and processed into a web, and then the sheath component is melted by heat and pressure and fiber intermingling points are bonded.
  • Processes for bonding fiber intermingling points are roughly divided into the heat-pressure method, which uses heat embossing rolls, and the hot-air bonding method, which uses a suction band dryer or a suction drum dryer.
  • Non-woven fabrics manufactured by these methods are called point-bonded non-woven fabrics and through-air non-woven fabrics, respectively, and are used according to their applications.
  • Such fibers known as heat-fusible (sheath-and-core) composite fibers include, for example, a composite fiber consisting of high-density polyethylene/polypropylene (hereafter referred to as HDPE/PP), a composite fiber consisting of high-density polyethylene/polyester (hereafter referred to as HDPE/PET), and a composite fiber consisting of a sheath component of a propylene-based copolymer and a core component of polypropylene (hereafter referred to as co-PP/PP), as disclosed in Japanese Patent Publication No. 55-26203, and Japanese Patent Application Laid-open Nos. 2-91217 and 2-191720.
  • HDPE/PP high-density polyethylene/polypropylene
  • co-PP/PP composite fiber consisting of a sheath component of a propylene-based copolymer and a core component of polypropylene
  • co-PP/PP since the co-PP/PP has propylene components in both resins constituting the sheath and those constituting the core, strong affinity exists between the sheath and core components, and, in contrast to HDPE/PP or HDPE/PET, the sheath and the core are not prone to delamination.
  • co-PP in the sheath component excels in the ability of heat-sealing with other resins, non-woven fabrics produced from the co-PP/PP-based heat fusible composite fiber are highly evaluated for their high strength when processed into paper diapers or other hygienic products together with non-woven fabrics or films produced from other resins.
  • Non-woven fabrics used for surface materials for example, those used for the manufacture of disposable diapers and hygienic napkins, become marked with yellowish stain from infants' excrement or urine, or reddish stain from women's menstrual discharge. Since such stain has significant influence on the comfort of use, the hiding property, which is a function of making such stain less visible, is essential for recent surface materials. For this reason, methods for improving the hiding property in conventional non-woven fabrics include the increase of whiteness by adding pigments such as TiO 2 in fibers constituting the non-woven fabrics.
  • An object of the present invention is to provide a composite fiber which can be processed into a non-woven fabric having high strength and soft feeling even by heat treatment at a low temperature and a high speed, and which has a good heat-sealing property and a good hiding property.
  • the inventors of the present invention conducted repeated examinations for solving the above problems, and found that the above object was achieved by a heat-fusible composite fiber having the constitution described below.
  • a heat-fusible composite fiber comprising a component A consisting of a high-melting-point, crystalline polypropylene resin, and a component B consisting of at least one low-melting-point resin selected from propylene-based copolymers having a melting point lower than that of the component A, characterized in that the cross-section of said composite fiber has a profiled structure wherein the component A consisting of the high-melting-point resin forms branch portions of strands radially extending from the center portion outward, and the component B consisting of the low-melting-point resin forms projecting portions connected to the branch portions.
  • a heat-fusible composite fiber according to the first aspect, wherein the propylene-based copolymer component is a binary copolymer consisting of 85 to 99 percent by weight of propylene and 1 to 15 percent by weight of ethylene.
  • a heat-fusible composite fiber according to the first aspect, wherein the propylene-based copolymer component is a binary copolymer consisting of 50 to 99 percent by weight of propylene and 1 to 50 percent by weight of butene-1.
  • a heat-fusible composite fiber according to the first aspect, wherein the propylene-based copolymer component is a terpolymer consisting of 84 to 98 percent by weight of propylene, 1 to 10 percent by weight ethylene, and 1 to 15 percent by weight of butene-1.
  • a short fiber non-woven fabric formed of a heat-fusible composite fiber according to any of the first through fourth aspects, whose intersections are thermally fused.
  • a long fiber non-woven fabric formed of a heat-fusible composite fiber according to any of the first through fourth aspects, whose intersections are thermally fused.
  • an absorbent product at least a part of which is produced from a non-woven fabric according to the fifth or sixth aspect.
  • Crystalline polypropylene, a high-melting-point resin used in the present invention as the component A of the heat-fusible composite fiber is a homopolymer of propylene, or a crystalline copolymer of propylene as the main constituent and a small amount of ⁇ -olefins such as ethylene, butene-1, hexene-1, octene-1, and 4-methyl pentene-1, and preferably having an MFR (230°C, 2.16 kg) of 2 to 150 and a melting point of 158°C or above.
  • Such polymers are obtained by methods well known to those skilled in the art, such as the polymerization of propylene through use of a Ziegler-Natta catalyst.
  • a propylene-based copolymer which serves as a low-melting-point resin used in the present invention as the component B of the heat-fusible composite fiber is a crystalline copolymer of propylene as the main constituent and a small amount of ⁇ -olefins such as ethylene, butene-1, hexene-1, octene-1, and 4-methyl pentene-1, and preferably having an MFR (230°C, 2.16 kg) of 3 to 50 and a melting point of 120 to 158°C, which melting point is lower than that of crystalline polypropylene used as the component A.
  • MFR 230°C, 2.16 kg
  • the propylene-based copolymer is a propylene-based propylene-ethylene binary copolymer consisting of 85 to 99 percent by weight of propylene and 1 to 15 percent by weight of ethylene, a propylene-based propylene-butene binary copolymer consisting of 50 to 99 percent by weight of propylene and 1 to 50 percent by weight of butene-1, or a propylene-ethylene-butene-1 terpolymer consisting of 84 to 98 percent by weight of propylene, 1 to 10 percent by weight of ethylene, and 1 to 15 percent by weight of butene-1.
  • Such copolymers are obtained by methods well known to those skilled in the art, such as the copolymerization of olefins through use of a Ziegler-Natta catalyst.
  • the cross-section of the heat-fusible composite fiber of the present invention has a profiled structure in which the component A consisting of the high-melting-point resin forms branch portions of strands radially extending outwardly from the center portion, and the component B consisting of the low-melting-point resin forms projecting portions connected to the branch portions.
  • the composite fiber of the present invention has a cross-section of a profiled structure, it is rather easily delaminated, and therefore, the combination of the resin components A and B constituting the composite fiber is more important. Specifically, the resin components A and B must have affinity with each other, and even if an external force is applied, they must not be separated. Examples of the cross-sections of heat-fusible fibers according to the present invention are shown in Figs. 1 through 4. However, the cross-sections of fibers described below are not intended to limit the present invention thereto.
  • the heat-fusible composite fiber (a1) shown in Fig. 1 is a composite fiber in which the component A (1) consisting of the high-melting-point resin forms branch portions of three strands radially extending outwardly from the center portion, and the component B (2) of the low-melting-point resin forms projecting portions extending from the end of each strand of the branch portions in the lengthwise direction along an extension line.
  • the heat-fusible composite fiber (a2) shown in Fig. 2 is a composite fiber in which the component A (1) of the high-melting-point resin forms branch portions of four strands radially extending outwardly from the center portion, and the component B (2) of the low-melting-point resin forms projecting portions extending from the end of each strand of the branch portions in the lengthwise direction along an extension line.
  • the heat-fusible composite fiber (a3) shown in Fig. 3 is a composite fiber in which the component A (1) consisting of the high-melting-point resin forms branch portions of four strands radially extending outwardly from the center portion, and the component B (2) consisting of the low-melting-point resin forms two projecting portions extending from the vicinity of the end of each strand in opposite directions along a line intersecting the strand.
  • the directions are perpendicular to the strand, but any intersecting angle can be adopted. This principle is also applicable to the following description.
  • one of the projecting portions extends from a location very close to the end of the strand, and the other extends from a location slightly closer to the root of the strand.
  • both projecting portions may extend from substantially the same location in directions that are substantially opposite.
  • the heat-fusible composite fiber (a4) shown in Fig. 4 is a composite fiber in which the component A (1) consisting of the high-melting-point resin forms branch portions of four strands radially extending outwardly from the center portion, and the component B (2) consisting of the low-melting-point resin forms two projecting portions extending from the vicinity of the end of each strand in opposite directions along a line intersecting the strand. (In this case the directions are somewhat oblique to the strand.)
  • the heat-fusible composite fiber of the present invention has a unique profiled cross-sectional structure. That is, the component A consisting of the high-melting-point resin projects outwardly as fine strands to form a branching skeleton, and the component B consisting of the low-melting-point resin is partly joined to the branch portions of the component A to form projecting portions.
  • the component B has extremely fine projecting portions, and its surface is exposed, except for those portions that join with the component A as described above.
  • the fiber of the present invention excels in adhesion at low temperature.
  • excellent adhesion at low temperature means that the heat-fusible fiber of the present invention can be heat-bonded uniformly at a temperature 3 to 4°C lower than that for the heat-bonding of normal composite fibers having circular cross-sections as shown in Fig. 5, and that under these conditions no unevenly joined fiber intermingling points are produced.
  • a non-woven fabric produced by heat treatment of the heat-fusible composite fiber of the present invention at a low temperature has a large number of voids between fibers, and thus a very soft feeling.
  • the resultant non-woven fabric since the fibers are firmly heat-bonded at fiber intermingling points, the resultant non-woven fabric has an improved bonding force as the amalgamation of fibers, and high tenacity.
  • an ordinary sheath-and-core type composite fiber having a circular cross-section as shown in Fig. 5 requires a higher temperature for sufficiently melting the sheath component thereof.
  • the heat-fusible composite fiber of the present invention has a polyfoliate structure in which strands branch radially outward from the center, scattered and reflected incident light can be seen in the field of view.
  • the heat-fusible composite fiber of the present invention excels in hiding power.
  • the components A and B described above are spun, drawn, and crimped by any well-known composite spinning method, through use of a nozzle plate having a cross-section represented by the above-mentioned cross-sectional shapes of fibers.
  • the weight ratio of the components A and B is preferably within a range between 30/70 and 80/20. If the content of the component B is less than 20 percent, the thermal adhesion of the resultant fiber is lowered, thereby compromising the desired tenacity and low temperature adhesiveness of the non-woven fabric produced from such a fiber.
  • the fineness of the composite fiber is preferably 0.5 to 10.0 d/f, and the number of crimps is preferably about 3 to 60/25 mm in view of favorable carding properties.
  • the components A and B described above are spun by any well-known spun-bonding method, through use of a nozzle plate having a cross-section represented by the above-mentioned cross-sectional shapes of fibers.
  • the weight ratio of the components A and B is preferably within a range between 30/70 and 80/20. If the content of the component B is less than 20 percent, the thermal adhesion of the resultant fiber is lowered, thus compromising the desired tenacity and low temperature adhesiveness of the non-woven fabric produced from such a fiber.
  • the content of the component B exceeds 70 percent, the heat shrinkage of the fiber is increased and dimensional stability tends to lower when the resultant fiber is processed into a non-woven fabric, although the thermal adhesion is sufficiently high.
  • the fineness of the composite fiber is preferably 0.5 to 10.0 d/f. When required, the fiber may be crimped.
  • the short fiber non-woven fabric of the present invention may be produced by a well-known method in which a web having a desired weight per unit area (METSUKE) is produced from the above composite fiber by carding, and the web in turn is processed into a non-woven fabric through use of the needle-punch method, the suction dryer method, or the hot-roll method.
  • METSUKE desired weight per unit area
  • a typical long fiber non-woven fabric may be produced by a well-known method, such as the spun-bonding method.
  • non-woven fabrics are useful for producing the surface material of paper diapers or sanitary napkins.
  • the single yarn fineness is preferably 0.5 to 10.0 d/f
  • the weight per unit area (METSUKE) of the non-woven fabric is preferably 8 to 50 g/m 2 , more preferably 10 to 30 g/m 2 .
  • the single yarn fineness is less than 0.5 d/f, stable spinning is difficult to achieve, and uniform webs are difficult to obtain; if the single yarn fineness exceeds 10.0 d/f, the texture of the non-woven fabric becomes coarse, and even if such a non-woven fabric is used as the surface material of a hygienic product, the product will have undesirably rough and rigid feeling.
  • the weight per unit area is less than 8 g/m 2 , sufficient tenacity of the non-woven fabric cannot be achieved because the non-woven fabric becomes excessively thin; if it exceeds 50 g/m 2 , the non-woven fabric becomes impractical because of poor feeling and high costs despite favorable tenacity.
  • a non-stretched fiber of a weight ratio of 40/60 (component B/component A) and a single-yarn fineness of 4 d/f was produced from a binary copolymer consisting of 5 percent by weight of butene-1 and 95 percent by weight of propylene having an MFR of 15 serving as the component B, and crystalline polypropylene (homopolymer) having an MFR of 10 serving as the component A.
  • Non-woven fabrics of a weight per unit area (METSUKE) of about 20 g/m 2 were produced by subjecting webs produced by a carding machine to heat treatment with thermocompression bonding equipment consisting of a metal back roll and an embossing roll having a 24 percent land area that was heated to 120°C (Example 1) or 124°C (Comparative Example 1), under conditions of a line pressure of 20 kg/cm, and a speed of 6 m/min.
  • METSUKE weight per unit area
  • the non-woven fabric of Example 1 excelled in whiteness, feeling (soft touch), as well as in tenacity and heat sealing properties, while the non-woven fabric of Comparative Example 1 had relatively poor whiteness, tenacity, and heat sealing properties. Thus, difference in suitability to absorbent products was obvious.
  • a composite fiber of 2 d / 38 mm was produced in the same manner as in Example 1 except that a terpolymer consisting of 3 percent by weight of ethylene, 5 percent by weight of butene-1, and 92 percent by weight of propylene having an MFR of 15 was used as the component B, and crystalline polypropylene (homopolymer) having an MFR of 10 was used as the component A.
  • Non-woven fabrics of a weight per unit area (METSUKE) of about 20 g/m 2 were produced by subjecting webs produced by a carding machine to heat treatment with thermocompression bonding equipment consisting of a metal back roll and an embossing roll having a 24 percent land area that was heated to 120°C (Examples 2 and 3), under conditions of a line pressure of 20 kg/cm, and a speed of 6 m/min.
  • METSUKE weight per unit area
  • a composite fiber of 2 d ⁇ 38 mm was produced in the same manner as in Example 1 except that a high-density polyethylene having an MI of 19 was used as the component B, and crystalline polypropylene (homopolymer) having an MFR of 10 was used as the component A.
  • Non-woven fabrics were produced from these composite fibers in the same manner as in Example 1 except that the processing temperature was 124°C (Comparative Example 2) or 128°C (Comparative Example 3).
  • Comparative Example 2 was produced through use of the same nozzle plate as in the present invention, and resin components beyond the scope of the present invention were combined.
  • a composite fiber of 2 d ⁇ 38 mm was produced in the same manner as in Example 1 except that polyethylene terephthalate having an IV value of 0.65 was used as the component B, and polyethylene terephthalate having an IV value of 0.49 was used as the component A.
  • This composite fiber could not be subjected to evaluation, because components A and B delaminated and split after stretching.
  • a composite fiber of 2 d ⁇ 38 mm was produced in the same manner as in Example 1 except that a high-density polyethylene having an MI of 19 was used as the component B, and polyethylene terephthalate having an IV value of 0.49 was used as the component A.
  • This composite fiber could not be subjected to evaluation, because components A and B delaminated and split after stretching.
  • Composite fibers were formed from a binary copolymer consisting of 5 percent by weight of butene-1 and 95 percent by weight of propylene, having an MFR of 15, and serving as the component B; and crystalline polypropylene (homopolymer) having an MFR of 10 serving as the component A, and were discharged from a nozzle plate as shown in Fig. 1 (Example 4) or Fig. 5 (Comparative Example 6) .
  • the resultant fibers were introduced into an air sucker and stretched to obtain long composite fibers.
  • the non-woven fabric of Example 4 excelled in whiteness, feeling (soft touch), as well as in tenacity and heat sealing properties, while the non-woven fabric of Comparative Example 6 had relatively poor whiteness, tenacity, and heat sealing properties. Thus, difference in suitability to absorbent products was obvious. Tenacity, feeling, and contrast ratio of non-woven fabric, and heat-sealing properties
  • each fiber was carded through use of a roller carding machine at a speed of 20 m/min to form webs of a weight per unit area (METSUKE) of about 20 g/m 2 .
  • the webs were in turn processed at a predetermined temperature into non-woven fabrics through use of an embossing roll having a 24 percent land area. Properties of these non-woven fabrics are shown in Table 1.
  • the heat-fusible composite fiber having a profiled cross-section according to the present invention can be processed into a non-woven fabric of high tenacity by heat treatment at a low temperature for a short time.
  • the non-woven fabric produced from this heat-fusible composite fiber has a soft feeling.
  • the heat-sealing properties with other polyolefin-based non-woven fabric are good, and hiding power is high.
  • Such a non-woven fabric is useful as the surface material for paper diapers and sanitary napkins.
  • Fig. 1 is a sectional view showing an exemplary shape of a heat-fusible composite fiber of the present invention.
  • Fig. 2 is a sectional view showing another exemplary shape of a heat-fusible composite fiber of the present invention.
  • Fig. 3 is a sectional view showing still another exemplary shape of a heat-fusible composite fiber of the present invention.
  • Fig. 4 is a sectional view showing yet another shape of a heat-fusible composite fiber of the present invention.
  • Fig. 5 is a sectional view showing the shape of a heat-fusible composite fiber of Comparative Examples 1, 3, and 6.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Multicomponent Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP98100922A 1997-01-20 1998-01-20 Fibre composite thermofusible et tissus non-tissés et produits absorbants obtenus à partir de celle-ci Expired - Lifetime EP0854213B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP21023/97 1997-01-20
JP2102397 1997-01-20
JP2102397 1997-01-20
JP25925197A JP3741180B2 (ja) 1997-01-20 1997-09-08 熱接着性複合繊維、これを用いた不織布及び吸収性物品
JP25925197 1997-09-08
JP259251/97 1997-09-08

Publications (2)

Publication Number Publication Date
EP0854213A1 true EP0854213A1 (fr) 1998-07-22
EP0854213B1 EP0854213B1 (fr) 2002-06-05

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EP (1) EP0854213B1 (fr)
JP (1) JP3741180B2 (fr)
CN (1) CN1195040A (fr)
DE (1) DE69805664T2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
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EP0894875A2 (fr) * 1997-07-28 1999-02-03 Fina Technology, Inc. Fibres à deux composants à base de polypropylène isotactique et syndiotactique, procédés de production et produits à partir de celles-ci
FR2790489A1 (fr) * 1999-03-01 2000-09-08 Freudenberg Carl Fa Nappe non tissee en filaments ou fibres thermolie(e)s
WO2000063471A1 (fr) * 1999-04-15 2000-10-26 Basell Technology Company Bv Fibres de polyolefine thermosoudables comprenant un copolymere statistique de propylene
US6458244B1 (en) * 1999-01-22 2002-10-01 Sichuan Foreign Economic Relations & Trade Corporation Synthetic fiber paper
US10610814B2 (en) 2014-03-31 2020-04-07 Unitika Ltd. Air filter material

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JP3900680B2 (ja) * 1998-05-19 2007-04-04 チッソ株式会社 熱接着性複合繊維、これを用いた不織布及び吸収性物品
JP5854458B2 (ja) * 2011-09-30 2016-02-09 ユニチカ株式会社 ポリエステル長繊維不織布の製造方法
CN102534863A (zh) * 2011-12-29 2012-07-04 江西国桥实业有限公司 双组份无纺布纺丝及其生产方法
JP6099330B2 (ja) * 2012-08-02 2017-03-22 日本バイリーン株式会社 フィルタ
US20140272223A1 (en) * 2013-03-15 2014-09-18 The Procter & Gamble Company Packages for articles of commerce
WO2015052460A1 (fr) * 2013-10-09 2015-04-16 Ucl Business Plc Milieu de chromatographie
CN103882539B (zh) * 2013-12-04 2017-02-08 太仓荣文合成纤维有限公司 一种灰色弹性纤维及其制备方法
US9968092B2 (en) 2014-04-17 2018-05-15 Basf Se Combination of novel nitrification inhibitors and biopesticides as well as combination of (thio)phosphoric acid triamides and biopesticides
CN112281228A (zh) * 2020-09-10 2021-01-29 深圳市华远新材料有限公司 一种十字型皮芯结构聚乳酸丝束及其制备方法
CN116590804B (zh) * 2023-07-17 2024-03-22 江苏新视界先进功能纤维创新中心有限公司 一种具有多级芯吸结构的异形纤维及在土工织物上的应用

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EP0894875A2 (fr) * 1997-07-28 1999-02-03 Fina Technology, Inc. Fibres à deux composants à base de polypropylène isotactique et syndiotactique, procédés de production et produits à partir de celles-ci
EP0894875A3 (fr) * 1997-07-28 1999-07-21 Fina Technology, Inc. Fibres à deux composants à base de polypropylène isotactique et syndiotactique, procédés de production et produits à partir de celles-ci
US6074590A (en) * 1997-07-28 2000-06-13 Fina Technology, Inc. Process of making a bicomponent fiber
US6458244B1 (en) * 1999-01-22 2002-10-01 Sichuan Foreign Economic Relations & Trade Corporation Synthetic fiber paper
US6551456B2 (en) * 1999-01-22 2003-04-22 Sichuan Foreign Economic Relations & Trade Corporation Process to prepare synthetic fiber paper
FR2790489A1 (fr) * 1999-03-01 2000-09-08 Freudenberg Carl Fa Nappe non tissee en filaments ou fibres thermolie(e)s
EP1048771A1 (fr) * 1999-03-01 2000-11-02 Firma Carl Freudenberg Nappe nontissée formée à partir de filaments ou de fibres thermoliés
WO2000063471A1 (fr) * 1999-04-15 2000-10-26 Basell Technology Company Bv Fibres de polyolefine thermosoudables comprenant un copolymere statistique de propylene
US6657033B1 (en) 1999-04-15 2003-12-02 Basell Poliolefine Italia S.P.A. Thermal bondable polyolefin fibers comprising a random copolymer of propylene
US10610814B2 (en) 2014-03-31 2020-04-07 Unitika Ltd. Air filter material

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DE69805664D1 (de) 2002-07-11
CN1195040A (zh) 1998-10-07
DE69805664T2 (de) 2003-02-06
JPH10259522A (ja) 1998-09-29
JP3741180B2 (ja) 2006-02-01
EP0854213B1 (fr) 2002-06-05

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