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WO2000047807A1 - Materiau pour coussin - Google Patents

Materiau pour coussin Download PDF

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Publication number
WO2000047807A1
WO2000047807A1 PCT/JP2000/000180 JP0000180W WO0047807A1 WO 2000047807 A1 WO2000047807 A1 WO 2000047807A1 JP 0000180 W JP0000180 W JP 0000180W WO 0047807 A1 WO0047807 A1 WO 0047807A1
Authority
WO
WIPO (PCT)
Prior art keywords
cushion material
nonwoven fabric
fiber
fibers
sample
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.)
Ceased
Application number
PCT/JP2000/000180
Other languages
English (en)
Japanese (ja)
Inventor
Noboru Watanabe
Hiroshi Onoue
Makio Nagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Kanebo Gohsen Ltd
Original Assignee
Kanebo Ltd
Kanebo Gohsen 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 Kanebo Ltd, Kanebo Gohsen Ltd filed Critical Kanebo Ltd
Priority to AU20050/00A priority Critical patent/AU2005000A/en
Publication of WO2000047807A1 publication Critical patent/WO2000047807A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/02—Cotton wool; Wadding
    • 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
    • D04H1/559—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 the fibres being within layered webs
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)

Definitions

  • the present invention relates to a cushion material made of a nonwoven fabric, and particularly to a material suitably used for a cushion material for a bed mat.
  • nonwoven fabrics made of synthetic fibers have been often used as cushioning materials for Bedmat furniture.
  • fibers having a relatively high melting point such as polyester fibers
  • fibers having a lower melting point are opened, mixed, then carded to form a web, and the web is laminated by cross lay. In this state, it is produced by performing a heat treatment with infrared rays or far-infrared rays continuously, and heat-fusing the fibers.
  • the web formed by carding is laminated along the thickness direction of the nonwoven fabric. Therefore, the fiber direction in the nonwoven fabric is perpendicular to the thickness direction. In other words, since the fibers are lying in the nonwoven fabric, the inherent elastic properties of the fibers cannot be used, and as a cushioning material, when a compressive load is applied in the thickness direction, the resilience is small and the set is large. Existed.
  • the fibers are lying in the nonwoven fabric, water permeability and air permeability in the thickness direction of the nonwoven fabric are low. If the water permeability is low, there is a problem that drainage of washing water becomes slower when washing bed mats and the like, and it takes time. Also, if the air permeability is low, there is a problem that it takes a long time since evaporation of water is suppressed by drying after washing. Furthermore, after laminating the webs, a cushion material is produced by heat-sealing the fibers with infrared rays or far-infrared rays continuously.
  • the surface part to which the infrared or far-infrared rays are directly irradiated has a high degree of thermal fusion, but if the density is high or the thickness is large, the thermal fusion proceeds from the surface part to the central part. Is reduced. For this reason, the degree of heat fusion in the nonwoven fabric becomes non-uniform, and an appropriate texture as a cushion material cannot be obtained. For this reason, there is a problem that it is difficult to manufacture a device having a very high density or a large thickness.
  • An object of the present invention is to provide a cushioning material which is excellent in water permeability and air permeability because a compressive load is applied in the thickness direction and the sag is small, and the bending rigidity is small, so that it is easy to impart flexibility. To supply. Disclosure of the invention
  • the cushioning material is a cushioning material in which a nonwoven fabric composed of a matrix fiber and a binder fiber is laminated, and the matrix fiber is 6.7 dtex or more, and the fiber direction in the nonwoven fabric is the same as the thickness direction of the cushioning material. It is a cushion material characterized by being parallel.
  • the type of the polymer is not particularly limited.
  • aromatic polyesters such as polyethylene terephthalate-polybutylene terephthalate, aliphatic polyesters such as polylactic acid and polyproprolactone, polyolefins such as polypropylene-polyethylene, nylon 6 and nylon 66 Polyamides and copolymers thereof can be used. Also, these A mixture of two or more fibers may be used.
  • Natural fibers can also be used for the matrix fibers.
  • cellulose, wool, cotton, silk, etc. can be used. Further, a mixture of two or more of these fibers may be used.
  • the above synthetic fibers and natural fibers may be used in combination.
  • the fineness of the matrix fiber needs to be 6.7 dtex or more, preferably 6.7 to 55 dtex—x, and more preferably 6.7 to 22 dtex. If it is 6.7 dtex or more, the porosity of the nonwoven fabric increases, so that appropriate water permeability and air permeability can be obtained. For this reason, after using a bed mat or the like, when washing is performed, drainage of water at the time of washing becomes faster, so that time can be reduced. In addition, the washing water can be quickly evaporated in the drying step after the washing.
  • the fineness of the matrix fiber is less than 6.7 dtex, the water permeability and air permeability of the nonwoven fabric will decrease. For this reason, the drainage of washing water during washing is slow, and it takes time. In addition, if the air permeability decreases, it takes time because the evaporation of the washing water is suppressed by drying after washing, which is also inappropriate.
  • the binder fiber used in the present invention is usually made of synthetic fiber, and has a lower melting point or softening point than that of the matrix fiber. After mixing the matrix fiber and binder fiber, heat treatment is performed at a temperature at which only the binder fiber melts (softens), stabilizing the fibers in the non-woven fabric and cushioning properties of the cushioning material. And stability.
  • the kind of the polymer used for the binder fiber is not particularly limited as long as a part or the whole thereof has a lower melting point (softening point) than that of the polymer used for the matrix fiber.
  • aromatic polyesters such as polyethylene terephthalate and polybutylene terephthalate, polylactic acid, and polypropyla Aliphatic polyesters such as croton, polyolefins such as polypropylene and polyethylene, polyamides such as nylon 6 and nylon 66, and copolymers thereof can be used. Further, a mixture of two or more of these fibers may be used.
  • the binder fiber may be a single component fiber made of the above polymer, but if a sheath-core type conjugate fiber having a low melting point polymer in the sheath component and a higher melting point polymer in the core component is used, the core component is supported. This is more preferable because the heat fusion function can be achieved while maintaining the function.
  • As such heat-fused fibers Belcombi of Kanebo Synthetic Co., Ltd., which has ordinary polyethylene terephthalate polymer as the core component and low melting point copolymerized polyethylene terephthalate polymer as the sheath component, is already commercially available. Power is not limited to these.
  • the mixing ratio of the binder fiber is preferably 5 to 70%. It is preferable that the content is within this range, since sufficient formability can be maintained during the forming process and cushioning with a soft touch as a cushion material can be obtained.
  • These matrix fibers and binder fibers are subjected to primary heat treatment of a web obtained by opening, blending, and carding to form a nonwoven fabric.
  • the fiber direction needs to be parallel to the thickness direction of the cushion material.
  • resilience is large, so that it is possible to reduce sag.
  • the fiber direction in the nonwoven fabric is parallel to the thickness direction, the bending rigidity is reduced. Therefore, when used as cushioning material, it is easy to impart flexibility to the body line during molding. There is a point.
  • the following method is used.
  • the matrix fiber and the binder fiber are spread, mixed, and then the web obtained by forcing is subjected to primary heat treatment to form a nonwoven fabric.
  • This heat treatment is usually performed with dry heat such as far-infrared rays or hot air to temporarily fuse the fibers in the nonwoven fabric.
  • the temperature and time conditions are determined appropriately according to the type of matrix fiber and binder fiber used.
  • the non-woven fabrics are laminated under a desired condition and subjected to a second heat treatment in a compressed state, whereby the respective non-woven fabric layers are mutually fused. Thereafter, the nonwoven fabric in the block state is sliced to obtain a nonwoven fabric in which the fiber direction in the nonwoven fabric is parallel to the thickness direction of the cushion material.
  • the laminated nonwoven fabric is compressed and held parallel to the laminating direction, and wet heat treatment with steam is performed.
  • Moist heat treatment conditions such as temperature and time may be appropriately determined.
  • the entire nonwoven fabric is uniformly heated, and a cushion material having an arbitrary density can be obtained.
  • a high-density cushioning material can be obtained by increasing the number of layers even if the nonwoven fabric has the same basis weight.
  • the thickness of the cushion material can be freely controlled by the thickness at which the nonwoven fabric in the block state is sliced. For this reason, it becomes easy to produce a cushion material having a large thickness, which was difficult in the conventional continuous manufacturing process.
  • the average thickness of the main body portion excluding a special portion of an end portion and a mounting portion in use is 5 mm or more. If the average thickness is 5 mm or more, sufficient cushioning properties as cushioning material Can be maintained, and a fixed feeling and a stable feeling can be obtained.
  • the average density is preferably 5 to 200 kg Zm 3 . It is preferable that the content is in this range, since a sufficient cushioning property as a cushion material can be maintained, and a fixed feeling and a stable feeling can be obtained.
  • the cushion material of the present invention can be entirely or partially force-barried with a woven or knitted mesh material.
  • the effect of force balling can be expected to not only reinforce the strength of the cushioning material surface, but also prevent peeling and fluff.
  • the reduction of surface friction is expected to make it easier to pack cushion material into the side lands.
  • the side land is a plain sheet or a bag-like sheet on which makeup such as dyeing or printing is applied, and is a part that directly contacts the skin.
  • the material of the woven or knitted material used for force balling is not particularly limited.
  • a covering method for example, there is a method of sewing on a cushion material surface by sewing.
  • the cushioning material of the present invention may be subjected to processing such as forming irregularities on the surface or making cuts if necessary.
  • ⁇ was given, when 40% or more and less than 60%, ⁇ , when 60% or more and less than 80%, ⁇ , and 80% or more was X.
  • the evaluation is ⁇ if the moving distance is less than 600 mm, ⁇ if it is 600 mm or more and less than 800 mm, ⁇ if it is 800 mm or more and less than 100 mm, 100 O
  • X The evaluation is ⁇ if the moving distance is less than 600 mm, ⁇ if it is 600 mm or more and less than 800 mm, ⁇ if it is 800 mm or more and less than 100 mm, 100 O
  • X Method of measuring and evaluating water permeability
  • Amount of water held by sample (kg) Weight after immersion (kg) — Weight before immersion (kg)
  • the evaluation is ⁇ if the amount of water held by the sample is less than 7 5.O kg, ⁇ if it is 7 5.O kg or more and less than 77.5 kg, and 77.5 kg or more and less than 80.O kg Then, ⁇ , and 80. O kg or more was defined as X.
  • the evaluation is ⁇ if the air permeability is 60 cm 3 / cm 2 Z s or more, ⁇ if the air permeability is 40 cm 3 / cm 2 Z s or more and less than 60 cm 3 / cm 2 Z s, 20 cm 3 / If cm 2 Z s or more and less than 40 cm 3 Z cm 2 Z s, ⁇ , 20 cm 3 / cm X is defined as 2 Z s or less.
  • a sensory test for visually observing the sample surface was performed. The evaluation was ⁇ when there was no peeling and fluff on the surface, ⁇ ⁇ ⁇ ⁇ when some were observed, and X when considerably observed.
  • a sensory test was performed according to the difficulty in packing the sample in the side ground.
  • ⁇ indicates a state where the sample can be easily packed in the side ground
  • ⁇ indicates a state where there is a young resistance
  • X indicates a state where there is considerable resistance.
  • a web was prepared by blending and forcing with the composition shown in Table 1, and was temporarily fused by far infrared rays. Next, these were laminated, compressed and held between two plates, put in a steam kettle and subjected to steam setting for 120 to 5 minutes to produce a non-woven fabric in a blocked state. This was further inverted 90 degrees and sliced to produce a cushion material in which the fiber direction in the nonwoven fabric was parallel to the thickness direction.
  • Hysteresis loss rate of sag of manufactured cushion material is 33.6%
  • travel distance of flexural rigidity is 595 mm
  • retained water quantity of permeability is 75.8 kg
  • ventilation Once again 7 2. was 4 cm 3 / cm 2 Z s .
  • peeling and fluff were observed in some places on the surface, and there was a slight resistance when the sample was packed in the side ground. Table 2 shows the results of these evaluations.
  • a web was prepared by blending and carding with the composition shown in Table 1 and was provisionally fused by far infrared rays. Next, these were laminated, compressed and held between two plates, put in a steam pot, and steam-set for 5 minutes at 120 to produce a non-woven fabric in a blocked state. Flip it 90 degrees and slice Then, a cushion material in which the fiber direction in the nonwoven fabric was parallel to the thickness direction was manufactured. In addition, a mesh fabric was sewn on the entire surface of the cushioning material by a sewing machine as a force-balancing material.
  • the hysteresis loss rate when measuring the sag of the manufactured cushioning material is 34.2%, the moving distance when measuring the bending stiffness is 595 mm, the retained water amount when measuring the water permeability is 78.2 kg, The air permeability was 58.8 cm 3 Z cm 2 / s.
  • a web was prepared by blending and carding with the composition shown in Table 1 and was provisionally fused by far infrared rays. Next, these were laminated, compressed and held between two plates, put in a steam kettle, and steam-set for 5 minutes at 120 to produce a non-woven fabric in a blocked state. Slicing was performed as it was to produce a cushion material in which the fiber direction in the nonwoven fabric was perpendicular to the thickness direction.
  • the hysteresis loss ratio of the manufactured cushion material was 84.9% when measuring set, and the center of one end did not touch the slope even when moved by 100 mm when measuring bending stiffness.
  • the amount of retained water at the time of water permeability measurement was 79.4 kg "7.
  • the air permeability was 39.2 cm 3 / cm 2 / s.
  • a web was prepared by blending and carding with the composition shown in Table 1 and was provisionally fused by far infrared rays. Next, these were laminated, compressed and held between two plates, put in a steam pot, and steam-set at 120 T: for 5 minutes to produce a non-woven fabric in a blocked state. Flip it 90 degrees and slice O 00/47807
  • Hysteresis loss rate of sag of manufactured cushion material is 58.1%
  • travel distance of flexural rigidity is 71.2 mm
  • water retention is 79.1 kg for water permeability measurement
  • ventilation time was 3 5. lcm 3 / cm 2 Z s.
  • a web was prepared by blending and forcing with the composition shown in Table 1, and was provisionally fused by far infrared rays. Next, these were laminated, compressed and held between two plates, put in a steam kettle, and steam-set for 5 minutes at 120 to produce a non-woven fabric in a blocked state. Slicing was performed as it was to produce a cushion material in which the fiber direction in the nonwoven fabric was perpendicular to the thickness direction.
  • the hysteresis loss ratio of the manufactured cushion material was 88.2% when measuring set, and the center of one end did not touch the slope even if the movement distance when measuring bending stiffness was 100 mm.
  • the amount of retained water at the time of water permeability measurement was 82.7 kg, and the air permeability was 18.6 cm 3 cm 2 Z s.
  • the present invention is a cushioning material which has a small sag even when a compressive load is applied and has a low bending rigidity so that it is easy to impart flexibility, and is excellent in water permeability and air permeability. It is suitably used for cushioning materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

La présente invention concerne un matériau, destiné à des coussins, fabriqué par stratification de feuilles de non-tissé comprenant des fibres de matrice et des fibres de liant, caractérisé en ce que lesdites fibres de matrice possèdent une finesse de 6,7 dtex ou plus et en ce que la direction de la fibre dans le non-tissé est parallèle à la direction en épaisseur du matériau pour coussin.
PCT/JP2000/000180 1999-02-09 2000-01-17 Materiau pour coussin Ceased WO2000047807A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU20050/00A AU2005000A (en) 1999-02-09 2000-01-17 Cushion material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/31076 1999-02-09
JP3107699 1999-02-09

Publications (1)

Publication Number Publication Date
WO2000047807A1 true WO2000047807A1 (fr) 2000-08-17

Family

ID=12321354

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/000180 Ceased WO2000047807A1 (fr) 1999-02-09 2000-01-17 Materiau pour coussin

Country Status (2)

Country Link
AU (1) AU2005000A (fr)
WO (1) WO2000047807A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200118A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd ソフト反発性を有する弾性網状構造体
JP2006200120A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd 低温時のクッション特性に優れた弾性網状構造体
JP2006200117A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd 耐光性に優れた弾性網状構造体

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057199U (ja) * 1991-07-17 1993-02-02 株式会社ブリヂストン 詰物体の構造
JPH0585890U (ja) * 1992-04-17 1993-11-19 三郎 中西 融点の相違する二種以上の繊維が垂直に且つ連続に配列 された不織布マットとその製造方法
JPH0759635A (ja) * 1993-08-20 1995-03-07 Nissan Motor Co Ltd 繊維質クッション体
JPH08226060A (ja) * 1995-11-20 1996-09-03 Nippon Felt Kogyo Kk 繊維層材の製造方法
JPH11290160A (ja) * 1998-04-07 1999-10-26 Toray Ind Inc 繊維成形中入れ材

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057199U (ja) * 1991-07-17 1993-02-02 株式会社ブリヂストン 詰物体の構造
JPH0585890U (ja) * 1992-04-17 1993-11-19 三郎 中西 融点の相違する二種以上の繊維が垂直に且つ連続に配列 された不織布マットとその製造方法
JPH0759635A (ja) * 1993-08-20 1995-03-07 Nissan Motor Co Ltd 繊維質クッション体
JPH08226060A (ja) * 1995-11-20 1996-09-03 Nippon Felt Kogyo Kk 繊維層材の製造方法
JPH11290160A (ja) * 1998-04-07 1999-10-26 Toray Ind Inc 繊維成形中入れ材

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200118A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd ソフト反発性を有する弾性網状構造体
JP2006200120A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd 低温時のクッション特性に優れた弾性網状構造体
JP2006200117A (ja) * 2004-12-21 2006-08-03 Toyobo Co Ltd 耐光性に優れた弾性網状構造体

Also Published As

Publication number Publication date
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