WO2000065140A1 - Tissu de fond pour tapis tufte et tapis tufte fabrique a partir de ce dernier - Google Patents

Tissu de fond pour tapis tufte et tapis tufte fabrique a partir de ce dernier Download PDF

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Publication number
WO2000065140A1
WO2000065140A1 PCT/JP2000/002685 JP0002685W WO0065140A1 WO 2000065140 A1 WO2000065140 A1 WO 2000065140A1 JP 0002685 W JP0002685 W JP 0002685W WO 0065140 A1 WO0065140 A1 WO 0065140A1
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WO
WIPO (PCT)
Prior art keywords
base fabric
fibers
fiber
fabric
tufted
Prior art date
Application number
PCT/JP2000/002685
Other languages
English (en)
Japanese (ja)
Inventor
Atsushi Matsunaga
Tomoko Watanabe
Mamiko Matsunaga
Original Assignee
Unitika Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unitika Ltd. filed Critical Unitika Ltd.
Priority to DE60042394T priority Critical patent/DE60042394D1/de
Priority to KR1020007014684A priority patent/KR20010053138A/ko
Priority to JP2000613868A priority patent/JP4623833B2/ja
Priority to EP00919168A priority patent/EP1130149B1/fr
Publication of WO2000065140A1 publication Critical patent/WO2000065140A1/fr

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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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • 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
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
    • 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
    • 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
    • D04H3/018—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
    • 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
    • D04H3/105—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 needling
    • 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
    • D04H3/12—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 filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
    • D05C17/02—Tufted products
    • D05C17/023—Tufted products characterised by the base fabric
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
    • D06N7/0068—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by the primary backing or the fibrous top layer
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/02—Synthetic macromolecular fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/10—Conjugate fibres, e.g. core-sheath, side-by-side
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1607—Degradability
    • D06N2209/1614—Biodegradable
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1628—Dimensional stability

Definitions

  • the present invention relates to a base fabric for evening sleeving force made of a nonwoven fabric in which a group of long fibers are accumulated, and a tufted carpet using the base fabric.
  • a nonwoven fabric in which a large number of long fibers are accumulated is used as a base fabric for evening carpet.
  • a well-known tufted carpet base fabric is used as a support when tufting is performed by implanting a pile yarn into this base fabric, and is mainly made of a nonwoven fabric made of polyethylene terephthalate. Is formed.
  • Tufted carts become bulky garbage when they are no longer needed, making it difficult to dispose of them.
  • the high burning power reduces the useful life of the incinerator and generates toxic gas and black smoke. If disposed of by landfill, it will not rot and will have a negative impact on the environment.
  • polyvinyl chloride is used as the backing material provided on the carpet, incineration generates dioxin.
  • the present invention solves the above problems and provides a tufted carpet base fabric and a tufted carpet using the base fabric, which do not cause a problem in a natural environment when they are no longer needed. With the goal.
  • the tufted carpet ffi fabric of the present invention is composed of a long-fiber nonwoven fabric formed of a polylactic acid-based polymer, and the long fibers have a circular cross section and a birefringence.
  • rate is 1 2 X 1 0- 3 ⁇ 3 0 X 1 0 - 3 der Li Kui crystallinity of 1 5-2 5% by mass is, the Tafute'Dokape' preparative base fabric, 1 2 0 ° C
  • the heat shrinkage in 3 minutes is less than 1% in both MD and CD directions.
  • the tufted carpet river base fabric of the present invention is composed of a long-fiber nonwoven fabric formed of a polylactic acid-based IR union, and the long fibers have an irregular cross-sectional shape and a crystallinity of 15 °.
  • the heat-shrinkage rate of the base material for tufted carpet at 120 t: for 3 minutes is 1% or less in both MD and CD directions.
  • a tufted carpet of the present invention includes the above-described base cloth. Further, it is preferable that the carpet has a configuration in which a pile yarn formed of a polylactic acid-based polymer is tufted on a base fabric, and the pile yarn in the base fabric is tufted. and has a Thus the side opposite to the side, out of Roh Kkingu material formed by wood charge having biodegradability is provided; t- Therefore, according to the present invention, since the base fabric of the tufted carpet is constituted by a long-fiber nonwoven fabric formed of a polylactic acid-based ffl coalescence, it has the required biodegradability and poses a problem in the natural environment. As is clear from the chemical structure of polylactic acid, the rigidity is higher than that of polyester and the like.
  • the tuft needles are used as the constituent fibers of the base cloth.
  • the fibers are less likely to pierce directly into the needle, allowing the fibers to escape from the needle, thereby reducing the damage to the fibers and maintaining the mechanical strength of the base fabric after tufting.
  • the tile carton has rigidity, and workability such as laying on the floor is improved.
  • the long fiber has a degree of crystallinity of 15 to 25% by mass, and when the long fiber has a circular cross section, the birefringence of the long fiber is 12 ⁇ 10 10 — 3 ⁇ 3 0 X 1 0- 3 der because, while providing an appropriate rigidity, the fiber structure polymer has sufficiently molecular orientation, thus dimensional method stability was also excellent in mechanical properties Becomes
  • the base fabric of the present invention has excellent thermal stability, in the backing step, the heat when laminating or coating the knocking material or the heat after laminating the backing material are used. A sufficient dimensional stability can be obtained without shrinking due to heat generated when the backing material is hardened by drying in an oven.
  • FIG. 1 is a schematic diagram ⁇ showing an example of a cross section of a multi-leaf type composite filament constituting the base fabric of the present invention ⁇ , and
  • Figure 2 shows the cross section of the multi-filament composite long fiber that constitutes the S cloth of the present invention. It is the schematic diagram which showed another example. Disclosure of explanation
  • the backing fabric for evening foot of the present invention is composed of a long-fiber nonwoven fabric formed of a polylactic acid-based polymer.
  • the polylactic acid-based polymer is superior to other polymers in terms of biodegradability, spinning properties, and the like. Also, as is clear from the chemical structure of polylactic acid, it has higher rigidity than polyester and the like. For this reason, when performing tufting on the base fabric, the tufted needles are less likely to pierce directly into the constituent fibers of the base fabric, and the fibers can escape from the needles. As a result, the mechanical strength of the base fabric after tufting can be maintained. Further, for example, when a tile carbet is formed as a final product, the tile force unit has rigidity, and workability such as laying on the floor is improved.
  • polylactic acid-based polymers examples include poly (D-lactic acid), poly (L-lactic acid), a copolymer of D-lactic acid and L-lactic acid, a copolymer of D-lactic acid and hydroxycarboxylic acid, and a copolymer of L-lactic acid and hydroxide
  • a polymer having a melting point of 100 or more is preferred.
  • a blend of polymers having a melting point of 100 ° C. or more is also suitable.
  • poly (L-lactic acid) and poly (D-lactic acid), which are homopolymers of polylactic acid have a melting point of about 180 ° C.
  • D lactic acid L lactic acid (copolymer molar ratio) is ⁇ 0 It is preferably 0/0 to 90Z10, 1o, zy0 to 0Z1oo.
  • the hydroxycarboxylic acids include glycolic acid, hydroxybutyric acid, hydroxyvaleric acid, hydroxypentanoic acid, and hydroxycaproic acid. And hydroxyheptanoic acid, hydroxyoctanoic acid and the like. Among them, it is particularly preferable to use hydroxycaproic acid or glycolic acid from the viewpoint of low cost.
  • the long fibers of polylactic acid polymer is cross ⁇ shape when a circular birefringence 1 2 X 1 0- 3 ⁇ 3 0 X 1 0 - crystallized with a 3
  • the degree is 15 to 25% by mass.
  • “circular” means a circle whose birefringence can be measured.
  • the resulting nonwoven fabric has excellent dimensional stability, mechanical properties and thermal stability, but the fiber Stiffness is too high, And for this reason, damage by the tufting needle in the tufting process ignites, and the strength retention after tufting decreases. Further, for example, when thermoforming is required for the tufted carpet of the present invention, it becomes difficult to perform molding.
  • the cross section of the long fiber is irregular, the birefringence cannot be measured, so only the crystallinity is specified.
  • the range is 15 to 25% by mass as described above. The significance of this category is the same as above.
  • the birefringence is measured using a polarizing microscope equipped with a Berek compensator and using tricresyl phosphate as an immersion liquid.
  • the base fabric of the present invention is required to have a heat shrinkage rate at 120 C for 3 minutes of 1% or less for both MD (machine direction) and CD (direction perpendicular to machine direction).
  • the tufted carbet has a pile thread tufted on a base cloth, and a backing material is provided for fixing the tufted pile thread on the base cloth.
  • a process such as laminating the base fabric is performed, and then the backing material is put into an oven to dry it and dried.However, when the heat shrinkage exceeds 1%, the base fabric is dried.
  • the form of the long fibers of the nonwoven fabric constituting the base fabric of the present invention may be a base phase composed of a single polylactic acid-based polymer or a composite form composed of a plurality of polymers.
  • the composite form include a core-sheath type, a side-by-side type, a sea-island type, and a multi-leaf type.
  • the single-phase type, the core-in-sheath type, the side-by-side type, and the sea-island type can adopt both circular and irregular cross-sections due to their cross-sectional structures.
  • the multi-leaf type can take only an irregular cross-section due to its cross-sectional structure.
  • the long fibers in the composite form are formed by a low-melting polymer and a high-melting ffi-copolymer, and the high-melting polymer has a melting point 20 ° C or more higher than the melting point of the low-melting polymer, and a low-melting polymer. It is preferred that some of these are present on the fiber surface.
  • the low-melting-point polymer softens or melts during the heat treatment for forming the nonwoven fabric, and the constituent fibers are fused and joined. Maintains fiber morphology unaffected.
  • the obtained long-fiber nonwoven fabric has the form Retains mechanical properties such as retention and tensile strength, and is excellent in flexibility.
  • the resistance when the tuft needle penetrates the heat-sealed part becomes small and easy to penetrate. .
  • Mass ratio is preferred. If the composite ratio of the high melting point polymer is less than _! 0%, the low melting point component is too large.For example, when forming into a nonwoven fabric by hot pressing, depending on the hot welding temperature, the hot pressing process may not be possible. There is a possibility that meltability of the fibers will adhere to the hot pressing rolls and other parts of Ushikawa and significantly impair operability. If the composite ratio of the high-melting point IE is less than 10% and the low-melting-point component is too large, the ratio of the low-melting-point polymer in the hot-press junction becomes too large, and the adhesion between fibers becomes strong. Too low fiber freedom.
  • the low-melting-point polymer and the melting-point polymer have compatibility.
  • D-lactic acid and ZL-lactic acid are copolymers having different molar ratios.
  • the combination and the high melting point polymer are polylactic acid and the low melting point IT (the union is a combination of lactic acid and hydroxycarboxylic acid). Stringing, which is united, is exemplified.
  • an anti-glazing agent a pigment, a flame retardant, an antifoaming agent, an antistatic agent, an antioxidant, an ultraviolet absorber, etc.
  • a pigment a pigment, a flame retardant, an antifoaming agent, an antistatic agent, an antioxidant, an ultraviolet absorber, etc.
  • an anti-glazing agent a pigment, a flame retardant, an antifoaming agent, an antistatic agent, an antioxidant, an ultraviolet absorber, etc.
  • the high-melting-point ffi-combined material is disposed on the core portion, and the low-melting-point polymer which becomes one component of the binder during the heat treatment for forming the nonwoven fabric is disposed on the sheath portion. Is done. With such a configuration, only the sheath portion is melted or softened to bond the constituent fibers together during the heat bonding process for forming a nonwoven fabric. At this time, since the core portion retains the fiber form, even in the subsequent tufting step, even when the tufted needle hits the heat-bonded portion of the sheath portions and the bonded state is released, the base cloth is not damaged. The strength does not decrease much. When the tufted needle hits the constituent fibers, the sheath on the fiber surface is damaged, but the core inside the fiber is not damaged. For this reason, the damage is smaller than that of the single-phase fiber, and the strength of the base fabric is less reduced.
  • the cross-sectional shape of this multi-leaf conjugated long fiber is a multi-leaf cross section in which a high-melting-point union is arranged on the core and two or more low-melting-point polymers are arranged on the leaves. Two or more leaf parts exist as a plurality of convex parts on the fiber surface.
  • the strength of the nonwoven fabric in the thickness direction is also improved.
  • the strength in the thickness direction of the nonwoven fabric forming the base fabric is improved in this way, a tufted carton base fabric free from delamination in the evening step can be obtained.
  • the degree of protrusion and the shape of the leaves (convex portions) made of the low-melting polymer are determined by appropriately selecting the composite ratio of the high-melting polymer / low-melting ⁇ -combination and the melt viscosity ratio. And can be changed.
  • the number of leaves of the multi-leaf type composite long fiber needs to be 2 or more, preferably 3 to 10, and more preferably 3 to 6. If the number of leaves is too large, the degree of protrusion of the protrusions on the leaves, that is, the fiber surface, becomes low, and the effect tends to be weakened.
  • FIG. 1 is a schematic diagram showing an example of a cross section of a multi-beam type composite long fiber constituting the base fabric of the present invention.
  • the composite long fiber 1 has the high melting point polymer 2 in the core and the low melting point: coalescing 3 as two or more leaves. Both the high melting point polymer 2 and the low melting point polymer 3 are alternately exposed on the surface of the fiber 1.
  • Figure 2 shows the cross section of the multi-lobed composite filament that constitutes the base fabric of the present invention. It is the schematic diagram which showed another example.
  • a leaf portion which is a convex portion, is formed so as to surround the entirety of the low-melting point coalescing three-force high-melting point polymer 2.
  • the long-fiber nonwoven fabric can be prepared by a known method, for example, a spunbond method.
  • a spunbond method long fibers are taken up by a melt spinning method, and the long fibers are deposited on a moving capture conveyor; Specifically, the polylactic acid ffi-combined is melt-spun from a normal spinneret, and the spun yarn is cooled, then towed by air soccer, and then spread by a known method.
  • the web is deposited as a web on a mobile deposition device.
  • the take-up speed at the time of towing by the air sucker is preferably, for example, about 300 to 600 mZ.
  • Long-fiber nonwoven fabrics include single-phase long fibers composed of a single polymer, non-woven fibers composed of multiple long fibers composed of multiple polymers, and composite fibers composed of single-phase long fibers.
  • Non-woven fabric mixed with long fibers, single-phase form; hi-fibers are composed of a polymer different from the polymer constituting the single-phase form fi fibers. If Can be
  • the fineness of the long fibers forming the nonwoven fabric is preferably 2 to 14 dtex. If the fineness is less than 2 decitex, the obtained long-fiber nonwoven fabric has a low strength, and the long fiber is cut when applying a needle punch to the nonwoven fabric or tufting the pile yarn as necessary. This tends to reduce the tensile strength of the base fabric at the time of forming a tufted carpet, even if it is compounded with a long fiber having a higher fineness. On the other hand, if it exceeds 14 decitex, the number of constituent fibers per base weight decreases, and the number of bonding points between fibers in the nonwoven fabric decreases, and the mechanical performance of the obtained long-fiber nonwoven fabric is impaired. In addition, the bonding points of the fibers in the nonwoven fabric are easily displaced, and the base fabric itself becomes rough and rigid, which may hinder the tufted force—the flexibility of the kit. As a result, the required performance cannot be satisfied.
  • the apparent density of the base fabric in the present invention is preferably 0.4 g Z cm 3 or less. If the apparent density exceeds 0.4 g Z cm 3 , the base fabric becomes very hard, and the resistance when the tufted needle penetrates the base fabric becomes large, making it difficult to penetrate.
  • the base fabric in the wood invention has fibers ⁇ ⁇ by needle punching. However, it is preferable that the entangled needle punched nonwoven fabric is used. Since the constituent fibers of the needle punched non-woven fabric are entangled not only in the two-dimensional direction but also in the thickness direction, the fabric does not peel between layers during tufting, and has good shape retention. Can be
  • the needle density at the time of needle punching is appropriately set depending on the kind and needle depth of the needle used, but it is generally preferable to be 20 to 100 times Z cm 2 . If the needle density is less than 20 times Z cm 2 , the degree of entanglement between long fibers is low, and the effect of needle punching is not exhibited. On the other hand, when the needle density exceeds 100 times / cm 2 , the force that intensifies the entanglement between the long fibers is severely damaged by the $ 21 needle, and the fibers themselves have extremely low strength. Therefore, the mechanical strength of the base fabric tends to be inferior.
  • a fused portion in which constituent fibers are heat-fused to the base fabric which has been subjected to the needle punching treatment or not As a method for heat-sealing the constituent fibers, a portion that passes through a hot embossing device consisting of a pair of embossing rolls or a hot embossing device consisting of an embossing roll and a flat roll and comes into contact with the convex portion of the embossing roll is used.
  • the method of melting and fusing the constituent fibers of the base fabric the method of passing between a pair of flat rolls, and the method of thermally fusing only the constituent fibers existing on the surface of the base fabric, or the intersection of the constituent fibers by blowing hot air And the like.
  • the method that passes the ⁇ -rule can adjust the thickness of the base fabric.
  • the constituent fibers are partially heat-pressed to each other.
  • the press-contact temperature and the press-bonding ratio are overlapped. A factor.
  • the hot pressing temperature that is, the set temperature of the roll, determines the melting point of the low melting point polymer.
  • T m As T m, (T m — 50) t: ⁇ (T m — 5) ° C. If the heat-welding temperature is set to a value less than (T m — 50) X: the melting point of the low-melting polymer will be insufficient, and the adhesive strength between the fibers will decrease.
  • T m the mechanical performance of the base fabric is inferior, and the bonding points between the fibers are easily detached by the impact of the tufted needle. As a result, delamination tends to occur in the base fabric, and only a base fabric having inferior performance can be obtained.
  • the heat welding temperature is set to a temperature exceeding (Tm-5) ° C, the molten low-melting polymer is fused to the heat welding rolls such as embossing rolls and flat rolls, resulting in marked operability. Be impaired.
  • the set temperature of the roll is too high, and the high-melting polymer is melted or softened, and the obtained nonwoven fabric becomes too hard and coarse and rigid. Needle penetration resistance increases.
  • the pressed area ratio is 4 to 40%.
  • the pressure contact area ratio refers to the ratio of the ffi contact portion to the entire area of the nonwoven fabric. If the press-contact area ratio is less than 4%, the area of the press-contact portion is too small with respect to the entire area of the non-woven fabric, so that the strength of the base fabric cannot be expected to be improved, and secondary such as tufting, dyeing, and backing is performed. The strength against the tensile stress acting on the base fabric during heating cannot be obtained. On the other hand, if the press-contact area ratio exceeds 40%, the degree of freedom of the fiber between the same tenths of the thermal pressure junctions decreases, and the fiber is cut without being able to follow the movement of the tuft needle at the time of tufting. The strength of the base cloth at the time of the deck cut will be inferior.
  • the shape of the tip of the protrusion is the shape of the heat-pressed portion of the nonwoven fabric.
  • the shape is not particularly limited, and may be a shape such as a round shape, an elliptical shape, a diamond shape, a triangular shape, a T shape, a well shape, an i-rectangle shape, and a square shape.
  • the volume of the tip of each projection is preferably about 0.1 to 1.0 mm 2 .
  • the linear pressure of the press roll during the heat press treatment is about 100 to 900 N / cm.
  • a binder resin is adhered to the base fabric, and the contact points of the constituent fibers are adhered by the binder resin. This is preferred. It is preferable that the amount of the binder resin adhered (solid content adhered) is 2 to 15% by mass based on the total quality fi of the tufted carpet base fabric. If the resin adhesion amount is less than 2% by mass, the effect of providing the binder resin cannot be exhibited.
  • the adhesion amount exceeds 15% by mass, the amount of resin existing between the long fibers becomes too large, and when tufting the pile yarn, the degree of freedom of the fibers is lost, and the tufting needle is not used. It becomes difficult to penetrate the base cloth, and the flexibility of the obtained tufted carpet tends to be inferior.
  • a binder resin the polylactic acid-based polymer used for the base fabric described above can be suitably used. Further, polyvinyl alcohol, polysaccharides such as starch which is a natural product, protein, chitosan and the like may be used.
  • Methyl acrylate, ethyl acrylate, butyl acrylate, methyl methyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, acrylate Monomers such as lonitrile and styrene can be used.
  • the basis weight of the base fabric is less than 50 g / mz, the mechanical strength of the base fabric is reduced, and the holding power of the evening thread to the base fabric is reduced due to the small amount of fiber indigo in the base fabric.
  • Te while the easy tough bets yarn omission in Tufte ring, the basis weight is greater than 1 5 0 g / m 2, with many fibers of the base fabric, irregular is tough Bok interval may become Pairu height uneven Easy to be. Also, it is not economical because of excessive performance.
  • a biodegradable tuft yarn is planted on the base fabric by tufting.
  • the biodegradable fiber constituting the tuft yarn include a fiber made of a polylactic acid-based polymer, a fiber made of an aliphatic polyester, a natural fiber, a regenerated fiber, and the like, which are used in the above-described base fabric.
  • natural fibers include cotton, wool, hemp, and the like
  • regenerated fibers include rayon, acetate, and solvent-spun rayon.
  • the backing material is bonded to the backing of the base cloth in which the pile yarn is implanted, for the purpose of fixing the pile yarn and for the purpose of holding and reinforcing the carpet. More provided.
  • this backing material well-known bitumen, ethylene vinyl acetate resin, polyurethane resin, and the like are preferable, and from the viewpoint of biodegradability, polyacid milk used in the above-mentioned base cloth is preferred.
  • System or aliphatic Preferred are esters and the like.
  • Examples of the method of providing the knocking material include a method of coating or impregnating the molten resin liquid on the base cloth, a method of applying a foamed resin liquid to the base cloth, and a method of foaming by drying.
  • a powder-dispersion method in which a resin is dispersed on the surface of a base fabric, and the resin is melted by heat and simultaneously fixed to the surface of the nonwoven fabric.
  • melt mouth rate Melting point (° C): Melting endotherm obtained by measuring the sample weight with a differential scanning calorimeter DSC-7 manufactured by PerkinElmer Model 5 with a heating rate of 20 as Z minutes. The temperature giving the maximum value of the curve was defined as the melting point (in).
  • MFR of polypropylene (gZ10 min) A 21.17 N load was applied at 230 ° C according to the method described in ASTMD 1238. The melt discharge amount at that time was measured, and the value was used as the MFR.
  • Fineness (Decitex) The fiber diameter in the web state was measured with a 50-line microscope, and the average value obtained by density correction was defined as fineness (Decitex).
  • Birefringence index (X 1 0- 3) using a pair polarizing microscope equipped with a REC compensation Isseki one was measured Shikawa me re click Rejiruhosufue one Bok as the immersion liquid.
  • KGSM strong (N / 5cm width): Using a constant speed medium length tester Tensilon RTM—50 mm manufactured by Toyo Ball Duin Co., Ltd., a rectangular shape with a width of ⁇ cm and a length of 3 cm. The test pieces were measured at a grip distance of 20 (: m) according to the stripping method described in JISL 1106. The average value of 10 test pieces was determined, and this average value was calculated. Appendix 1 0 () gm The value converted per 2 was defined as KGSM strength. The KGSM strength was measured for each of the MD direction (macliinedirection) and the CD force direction (cross clirection) of the base fabric.
  • Heat shrinkage (%) of the base fabric Five samples of 20 cm ⁇ 20 cm were prepared, and the lengths of three places were measured in each of the MD direction and the CD direction. The average value of the length in the MD direction is LM. The average value of the length in the CD direction is L C. And Then, heat treatment was performed in a hot air dryer at 120 ° C for 3 minutes under a constant length, and the dimensions of the sample after heat treatment were three places in the MD and CD directions in the same way as before heat treatment. Was measured. The average value of the length in the MD direction at that time was (LM,) The average value of the length in the CD direction was (LC,), and the thermal shrinkage of the base fabric was determined by the following equation.
  • Stiffness of base fabric (c c ⁇ cm Z cm 2 ): Measured by the compression characteristics of the KES-FB test system. Specifically, five samples of 20 cm x 20 cm were prepared, the maximum load was first set, and the samples were placed on the sample stage. Then, the sample was compressed with a pressure plate at a speed of 1 mm Z 50 seconds, and the compression hardness obtained in this measurement was defined as the rigidity of the base fabric.
  • the strength retention of the base fabric was evaluated in the following three stages. :: Good when the retention of strength after sunset is 80% or more ⁇ : Normal when the retention of strength is 55 to less than 80%
  • the pile fabric is floating and a gap is formed between the pile fabric and the backing layer.
  • Hetering resistance Prepare a circular pressurizer with a smooth surface with an area of 180 cm 2 , compress it with a compressive stress of 40 kPa for 5 seconds, and repeat it for 500 times. The settling of the pile when repeated was evaluated as settling resistance.
  • Melting point 170 polylactic acid having a number average-average molecular weight of 5400, MFR of 50 g and a copolymerization molar ratio of D-lactic acid and Z-L-lactic acid of ⁇ Z99 in the following:
  • PHA-1 was melted at a temperature of 2 I 0 V, and discharged from a single-phase spinning metal to perform melt spinning.
  • the spun yarn is cooled by a known cooling device; the 1: 1 yarn is cooled, and the spun yarn is placed below the spinning wire.
  • the installed air soccer it is towed at a drawing speed of 5500 ⁇ in Z minute, opened using a known opening device, and collected and deposited on a moving collection tube to obtain long fibers.
  • polylactic acid having a melting point of 170 ° C, a number average molecular weight of 6900, an MFR of 30 g / 10 min, and a copolymerization molar ratio of D-lactic acid / L-lactic acid of 1 Z99 was converted to a temperature of 21 It is melt-spun at 0 ° C, discharged from a single-phase spinneret, melt-spun via a take-off roll, and the yarn is rolled between the take-up roll and a roll extending below it. I got along.
  • the drawn yarn is guided to a heated and humidified crimper placed below the drawing roll and subjected to a relaxation heat treatment, and the polylactic acid of the 144-decitix Z64 filament is produced.
  • the resulting pile yarn was obtained.
  • the pile yarn made of polylactic acid described above was placed on a base fabric for evening carpet made of polylactic acid as described above, with a gauge of 1Z10 and a stitch of 10 pieces of Z2.5. Tufting was performed under the conditions of 4 cm, loop noise 6 nm.
  • the polylactic acid resin is extruded into a film shape, and after laminating on the back of the tufted cloth, knocking is performed and the tufted force is reduced. I got it.
  • Table 1 shows the physical properties of the obtained base fabric and carpet.
  • Example 1 Example 2 Example 3 Example 3 Example 4 Example 5 Example 6
  • Table 1 shows the physical properties of the obtained base cloth and carpet.
  • Table 1 shows the physical properties of the obtained base cloth and carpet.
  • the discharge amount of PL ⁇ -1 from the spinneret was changed, and the pulling speed of the air sucker was changed to 600 mZ so that the single-fiber fineness of the long fibers became 6.6 decitex. It was adjusted. Other than that, under the same conditions as in Example 1, a piece of evening foot carton] base cloth and a piece of evening foot power were obtained.
  • Table 1 shows the physical properties of the obtained base fabric and power pipe.
  • Example 1 The single-phase & fiber non-woven fabric of Example 1 was impregnated with 12% by mass of a nodule composed of the aqueous solution of polylactic acid of Example 1 and a nodder composed of an aqueous solution of polyvinyl alcohol in place of the binder. Evening A base fabric for a carpet was obtained. Other than that, the same as in Example 1. —Put ffi fabric and tufted carpet were obtained.
  • Table 1 shows the physical properties of the obtained base cloth and carpet.
  • the biphasic d-fiber nonwoven fabric of Example 1 was impregnated with 6 masses of a binder composed of an aqueous solution of acrylate and instead of the binder composed of the aqueous solution of polylactic acid of Example 1, and the mass was impregnated.
  • basis weight was obtained base fabric for Tafute' de carpets of l OO g / m 2. Other than that, the same conditions as in Example 1 were used.Table 1 shows the physical properties of the obtained base fabric and carpet for the evening foot carpet and the fabric for evening foot carpet. .
  • a tufted carpet was obtained by making the following differences from Example 1. That is, the processing temperature of the embossing roll was set to 80 ° C., and the S-fiber nonwoven fabric was manufactured by temporary welding. Then, through the RPD 3 6 # Needle punching machines this nonwoven yelling planting of Needle needle, the needle density 6 0 times Z cm 2 at paragraph shall knee Dorupanchi, mechanically entangled structure fibers of the nonwoven fabric And punch punch dueb. Further, the punched web was heat-sealed at a press-contact temperature of 110 ° C. Then, a binder made of a polylactic acid aqueous solution was adhered to the mass at a temperature of 110 ° C. Then, a base cloth for a tufted carpet was attached. Was manufactured.
  • the base cloth thus obtained and the carpets obtained using this base cloth are shown in the table.
  • a nonwoven fabric was manufactured using long fibers having a core-sheath structure as synthetic fibers.
  • PLA-: 1 of Example 1 is disposed on the core, and the sheath has a melting point of 150, a number average molecular weight of 5150, an MFR force of 50 g / 10 minutes, At a temperature of 210 ° C, each polylactic acid is melted so that polylactic acid having a copolymerization molar ratio of D-lactic acid-L-lactic acid of 5 Z95 (hereinafter referred to as “PLA2”) is arranged.
  • PLA2 polylactic acid having a copolymerization molar ratio of D-lactic acid-L-lactic acid of 5 Z95
  • the spinning of the double core-sheath type was performed by spinning the composite ratio (PLA-1 ZPLA-2) from the metal under the condition of 70 Z30 mass%, and the melt spinning was performed.
  • the spun yarn is cooled by a known cooling device, and then allowed to flow at a drawing speed of 530 m / min by a air soccer installed below the spinneret;
  • the fiber was opened using a fiber opening device, and the fiber was collected and deposited on a moving collection surface to form a long fiber web.
  • the single fiber fineness of this long fiber web was 6.6 decitex.
  • Table 2 shows the physical properties of the obtained base fabric and carpet.
  • the spinning rate of P-sulfur-1 and PLA-2 from 1 gold was adjusted for spinning, and the composite ratio (PLA-) / PLA-2) was set at 50/50% by mass. Soshi Otherwise, under the same conditions as in Example 8, a base fabric and a tufted carpet were obtained.
  • Table 2 shows the physical properties of the obtained base fabric and carpet.
  • the composite ratio (PLA-1 / PLA-2) was set at 30/70 mass%. Then, under the same conditions as in Example 8, a base fabric and a piece of tufted force were obtained.
  • Table 2 shows the physical properties of the obtained base cloth and pliers.
  • the far-coupling of the sheath portion of the long fiber having the core-sheath structure was changed.
  • the melting point is 1.35 ° C
  • the number average molecular weight is 490,000
  • the MFR is 50 g / 10 min.
  • a polylactic acid having a ratio of 8 to 92 (hereinafter referred to as “PLA-3”) was melted at a temperature of 210 ° C., and the core polymer was the same as in Example 8; It discharged more.
  • the composite ratio (PLA-1 / PLA-3) was set to 50Z50% by mass.
  • the towing speed of the air sucker was set to be 500 m minutes, and the heating temperature of the hot emboss mouth was set to 90 ° C.
  • the other conditions were the same as those in Example 8 to obtain a cloth and a tufted carpet under the ⁇ -condition.
  • Table 2 shows the physical properties of the obtained base cloth and power pipe.
  • the cross-sectional structure of the long fiber is multi-lobed.
  • the PLA-1 used in Example ⁇ is arranged in the core, and the PL ⁇ 2 used in Example 8 is arranged in six parts. ⁇ ⁇
  • the composite ratio (PLA-1 ZPLA-2) is set to 50/50 mass%, and the yarn having the cross-sectional structure of the 6-leaf composite type shown in Fig. 1 is obtained. It was melt spun.
  • the spun yarn is towed and thinned by an air sucker provided below the spinneret at a drawing speed of 5300 mZ,
  • the fiber was opened using a known fiber opening device, and was captured and deposited on a moving capturing surface to obtain an S fiber web.
  • the single-fiber fineness of the long fibers constituting this web was 6.6 decitex.
  • Table 2 shows the physical properties of the obtained base fabric and carpet.
  • the PL ⁇ —1 of Example 1 and the PL ⁇ —2 of Example 8 were melted at 2.10 "C, and the fiber mixture ratio (PL ⁇ -1 / PL
  • the melt spinning was carried out by setting ⁇ -2) to 70 / '30 quality if% .
  • the spun yarn was cooled by a known cooling device, and subsequently, it was placed below the spinneret.
  • the yarn is drawn and thinned at a drawing speed of 5300 OmZ, and the yarn is spread using a known spreader, and collected and deposited on a moving trapping surface.
  • the long fiber web of PLA-1 and the long fiber Mi of PLA-2 are respectively (;. There was decitex.
  • Table 3 shows the physical properties of the obtained base cloth and carpet.
  • Example 13 is PLA-1 / PLA-2
  • Example 8 The fibrous web obtained in Example 8 was introduced into a continuous heat treatment device at a temperature of 1550 to perform thermal through treatment. Then, 0 to constituent fibers to Webu after this heat treatment the Emarujo emissions of dimethyl polysiloxane solids. With 5 mass% ⁇ , and basis weight 1 0 0 g Z m 2 of core-sheath composite long fiber nonwoven fabric I got Then, using this as a base cloth, an evening foot kit was obtained under the same conditions as in Example 8.
  • Table 3 shows the physical properties of the obtained cloth and carpet.
  • PLA-1 of Example 1 a base fabric for a tufted cart made of spin draw yarn was manufactured.
  • PLA-1 was melted at a temperature of 210 ° C, discharged from a single-phase spinneret and melt-spun.
  • the spun yarn was cooled by a known cooling device.
  • the yarn was led to a first roll (speed: 200 mZ, at a temperature of 80) placed below the spinneret, and further placed below the first roll and below.
  • a speed of 300 mZ / min with the second roll at a temperature of 100 m and a speed of 300 m / min.
  • a 2.5-fold stretched Nobu middle yarn was sucked by air soccer, and then spread using a known spreader.
  • it was collected and deposited on the moving collection ⁇ ' ⁇ to form a long-fiber web made of Nakanobu, and the single-fiber fineness of this long fiber was measured at 6.6 Tetex.
  • a hot embossing roll is applied to this long fiber weave, ⁇ : point, ⁇ ⁇ in each press-contact area: 0.6 mm z , force temperature: 1 ⁇ 2, ⁇ , joint volume ratio: ⁇ Partial heat) at 0%, and 0 to the fibers constituting the Emarujo emissions of siloxane solids. 5 mass% grant, basis weight was obtained 1 0 0 g Z m 2 of single-phase type long-fiber nonwoven fabric.
  • Table 3 shows the physical properties of the obtained cloth and carpet.
  • the base fabrics obtained in Examples 1 to 15 were excellent in mechanical stability and thermal stability, and also excellent in curability as a carpet. .
  • the woven fabrics composed of the composite-form long fibers of Examples 8 to 14 had good maneuverability and were able to stably obtain a base fabric.
  • the fibers were firmly adhered to each other, and nevertheless, the degree of freedom of the base fabric was retained, so that the fibers had excellent strength retention after tufting. Further, the tufted carpet made of these base fabrics had very good biodegradability.
  • Example 16 Example 16
  • Example 8 The base cloth obtained in Example 8 was coated with a 144-decitix / '64 filament Nylon 6-forced iririle yarn, and a tufting machine was used to measure the gauge 1/1. (), Stitching 1 ⁇ This Z 2.54 cm, the loop bleed length was 6 mm, and the evening was settled. Next, the polyethylene resin was extruded in a film shape, and the backing was performed by laminating the back surface of the tufted cloth to obtain an evening foot-force.
  • the discharge amount of PLA ⁇ 1 from the spinneret was changed, and the pulling speed of air soccer was changed to 230 mZ, so that the fineness of the single yarn was adjusted to 6.6 decitex. Then, under the same conditions as in Example 1, a base cloth and a tufted cart were obtained.
  • Table 3 shows the physical properties of the obtained base cloth and carpet.
  • the amount of PLA-1 discharged from the spinneret was changed, and the pulling speed of air soccer was changed to 720 mZ, so that the fineness of the single yarn was adjusted to 6.6 dtex.
  • the melt spinning was attempted under the same conditions as in Example 1, but the yarn breakage occurred frequently, and a long fiber nonwoven fabric could not be obtained.
  • Table 3 shows the production conditions and the spinning properties at this time.
  • the spun yarn is cooled by a known cooling device, and the spun yarn is drawn into the spinning yarn at a drawing speed of 3800 m / min by an air soccer installed below the I-gold. ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ -3 ⁇ -Captured and deposited on the moving collecting surface to obtain a long fiber web.
  • the single fiber fineness of this long fiber was 6.6 decitex.
  • the melting point force of 160 ° C and the MFR force of 20 g / 10 minutes is melted at a temperature of 230 V and discharged from a single-phase spinneret. Then, the yarn was drawn between the JI stripper and a drawing roll disposed below the roll. Subsequently, the drawn yarn is guided to a heated-humidified crimper arranged below the drawing roll to perform a relaxation heat treatment, and a high-density polypropylene of 144 dtex / ⁇ 64 filament is applied. A pile yarn made of pyrene was obtained.
  • the pile yarn was tufted into a base cloth made of a pyrene filament long fiber. Otherwise, a tufted carpet was obtained under the conditions of Example 1 and M.
  • Table 3 shows the obtained base fabric and carbureted material.-As is clear from Table 3, in Comparative Example 1, the spinning speed was too low, the birefringence rate, and the finished husk was wood. ⁇ ⁇ The thermal characteristics and thermal stability were poor. In addition, the strength retention after toughness and the backing ability were good.
  • Comparative Example 2 was inferior in spinnability due to high-speed spinning and frequently caused thread breakage, so that a base fabric for a tufted force per pet could not be obtained.
  • the tufted carbet of Comparative Example 3 was not biodegradable, and therefore had a problem in disposal. In addition, due to the repeated compression, the pile became dull and the appearance was poor.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Carpets (AREA)

Abstract

La présente invention concerne un tissu de fond destiné à être utilisé dans les tapis tuftés et un tapis tufté fabriqué à partir de ce tissu de fond. Le tissu de fond de l'invention est composé d'un tissu non tissé constitué de longues fibres d'un polymère d'acide polylactique. Ces longues fibres sont de section circulaire et possèdent une biréfringence de 12x10-3 à 30x10-3 et une cristallinité de 15 à 25 % poids. Le tissu non tissé à longues fibres de l'invention présente une contraction thermique inférieure ou égale à 1 % pendant un échauffement de trois minutes à 120 °C dans le sens de la chaîne et dans le sens de la trame. Lorsque sont utilisées de longues fibres dont les sections sont de formes différentes, elles possèdent également une cristallinité de 15 à 25 % poids et le tissu non tissé fabriqué à partir de celles-ci présente une contraction thermique inférieure ou égale à 1 % pendant un échauffement de trois minutes à 120 °C dans le sens de la chaîne et dans le sens de la trame.
PCT/JP2000/002685 1999-04-26 2000-04-25 Tissu de fond pour tapis tufte et tapis tufte fabrique a partir de ce dernier WO2000065140A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60042394T DE60042394D1 (de) 1999-04-26 2000-04-25 Tufting-teppich mit einem grundgewebe
KR1020007014684A KR20010053138A (ko) 1999-04-26 2000-04-25 터프티드 카페트용 바탕직물 및 이 바탕직물을 이용한터프티드 카페트
JP2000613868A JP4623833B2 (ja) 1999-04-26 2000-04-25 タフテッドカーペット
EP00919168A EP1130149B1 (fr) 1999-04-26 2000-04-25 Tapis tufte fabrique a partir d'un tissu de fond

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JP11/117884 1999-04-26
JP11788499 1999-04-26

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US09720629 A-371-Of-International 2001-02-28
US10/371,039 Division US20030152743A1 (en) 1999-04-26 2003-02-19 Base cloth for tufted carpet and tufted carpet using the same

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WO2000065140A1 true WO2000065140A1 (fr) 2000-11-02

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JP2002248047A (ja) * 2001-02-23 2002-09-03 Unitica Fibers Ltd 生分解性カーペット
JP2003010030A (ja) * 2001-07-02 2003-01-14 Towa Orimono Kk カーペット
JP2005060691A (ja) * 2003-07-30 2005-03-10 Mitsubishi Plastics Ind Ltd 射出成形体とその製造方法、並びに、射出成形体に用いられるペレット
KR100478962B1 (ko) * 2001-02-19 2005-03-25 칼 프로이덴베르크 카게 터프팅 캐리어 및 그 제조 방법
JP2006118064A (ja) * 2004-10-19 2006-05-11 Nippon Ester Co Ltd ポリ乳酸系自発捲縮繊維
US7682548B2 (en) 2003-07-30 2010-03-23 Mitsubishi Plastics, Inc. Injection molded article, production method thereof and pellets used for injection molded article
US7767120B2 (en) 2002-11-08 2010-08-03 Toray Industries, Inc. Aliphatic polyester multi-filament crimp yarn for a carpet, and production method thereof
WO2019065093A1 (fr) * 2017-09-27 2019-04-04 宇部エクシモ株式会社 Fibre composite et article moulé

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US20060257616A1 (en) * 2005-05-12 2006-11-16 Stowe-Pharr Mills, Inc. (D/B/A Pharr Yarns, Inc.) Renewable nonwoven carpet
EP1762655A1 (fr) * 2005-08-31 2007-03-14 DS Textile Platform NV Tapis aiguilleté biodégradable
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TWI802586B (zh) * 2017-09-27 2023-05-21 日商宇部愛科喜模股份有限公司 複合纖維及成形體

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DE60042394D1 (de) 2009-07-30
EP1130149B1 (fr) 2009-06-17
EP1130149A1 (fr) 2001-09-05
EP1130149A4 (fr) 2005-09-14
JP4623833B2 (ja) 2011-02-02
KR20010053138A (ko) 2001-06-25

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