WO1991017296A1 - Tissu de polyolefine non tisse etirable et production d'un tel tissu - Google Patents
Tissu de polyolefine non tisse etirable et production d'un tel tissu Download PDFInfo
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- WO1991017296A1 WO1991017296A1 PCT/JP1991/000594 JP9100594W WO9117296A1 WO 1991017296 A1 WO1991017296 A1 WO 1991017296A1 JP 9100594 W JP9100594 W JP 9100594W WO 9117296 A1 WO9117296 A1 WO 9117296A1
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- nonwoven fabric
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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
- 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
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/50—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
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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
- 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
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
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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
- 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
- D04H1/555—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 by ultrasonic heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/69—General aspects of joining filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
Definitions
- the present invention has an excellent elasticity exhibited by a high elongation recovery rate and an excellent feeling, and is a polyrefin-based elasticity suitable for applications such as bandages and haptic base fabrics.
- the present invention relates to a nonwoven fabric and a method for producing the same. Background art
- thermoplastic polyurethane fibers Japanese Patent Application Laid-Open No. 59-157362
- Heat-bonded hot-binder fibers Japanese Patent Application Laid-Open No. 62-177269
- non-woven fabrics made of polyurethane fibers have the drawback that they have a rubbery, sticky feel and are not preferred because of their high specific gravity. Due to its properties, when polyester fiber was used, there was a drawback that the feel was too hard.
- An object of the present invention is to configure a nonwoven fabric so as to solve the above-mentioned drawbacks of the conventional technique and to have an excellent feel and a superior elasticity exhibited by a high elongation recovery rate. Disclosure of the invention
- the inventors of the present invention have found that, using a polyolefin-based high crimping heat-fusible conjugate fiber as the main constituent fiber of the web, the elasticity is increased by high crimping.
- the heat fusion points are evenly distributed throughout the nonwoven fabric.
- the above-mentioned problem is solved by the configuration in which the nonwoven fabric is formed by relying on the heat-sealing point formed only in the nonwoven fabric portion at the position of the scattered and distributed point plane. Find out what can be achieved and achieve the present invention o Best mode for carrying out the invention
- the nonwoven fabric according to the present invention may be made of a polyolefin-based high crimping heat-fusible composite fiber (sometimes referred to as a composite male fiber at the end) alone or It is composed of a mixed fiber with other organic fibers containing at least 30% by weight of this composite fiber, and the composite fiber has a three-dimensional crimp, and This composite fiber is made into a nonwoven fabric by heat fusion.
- the conjugate fibers may be directly and strongly bonded to each other, and when other organic fibers are in contact with each other, they may also be heat-sealed to the organic fiber.
- heat fusion point in the present invention means not only a heat fusion point that can be counted as one or two but also a fusion area that affects the fusion effect.
- the nonwoven fabric structure is stabilized by forming a large amount of the nonwoven fabric. The specific fiber structure, constituent components, and organic fibers of the polyolefin high crimping heat-fusible conjugate fiber will be described later.
- the most significant feature of the nonwoven fabric according to the present invention is that the non-woven fabric at each position of a number of dot planes, which are distributed on the nonwoven fabric surface, will be described below. This is a point formed only in the portion.
- the points distributed on the surface of the non-woven fabric (not particularly marked) have an area of 0.007 cm : ⁇ 0.8 citf and the total area of the 10 to 40% of the surface
- the non-woven fabric portion at the position of the dotted surface (hereinafter, may be referred to as the heat-sealing area) is a cylinder whose inner periphery is in contact with the periphery of the dotted surface. It substantially corresponds to the non-woven fabric part existing in the cylinder.
- the heat-sealed area of the non-woven fabric is evenly dispersed as it is formed in the non-woven fabric. If the total area of the above-mentioned dot surfaces is less than 10% of the cloth surface, the adhesive force is weak and it will not withstand repeated expansion and contraction, and if it exceeds 40%, the texture will be hard and The elasticity becomes poor.
- the basis weight of the nonwoven fabric is preferably from 100 to 200 g / m 2 .
- the nonwoven fabric according to the present invention has a kind of sea-island structure, and the heat-sealing point is effective for making the web into a nonwoven fabric only by intertwining the composite fibers exhibiting three-dimensional crimp. It has a configuration in which web islands, where heat fusion points are concentrated, are distributed in the sea of webs where there are no seams. For this reason, this nonwoven fabric is excellent in a unique feeling and elasticity.
- FIGS. 1 to 5 are diagrams showing examples of the distribution of push-shaped convex bodies used in the production of a nonwoven fabric
- FIG. 6 shows the case where the production of the nonwoven fabric is performed by an ultrasonic fusion device.
- Polyolefin-based high crimping heat-fusible bicomponent fibers which are the main raw material fibers, have not yet developed crimps and have not been heat-fused, of course. Except for this point, the fiber structure and constituent components are the same as those constituting the nonwoven fabric.
- a port A web composed of a lioline-based high crimping heat-fusible conjugate fiber alone or mixed with another organic fiber containing at least 30% by weight of the conjugate fiber is used. create.
- a well-known method such as a card machine or an airflow type random webber can be used for the production of the web, and a cross-over web may be formed by using a cross-over 5 slash.
- “high crimpability” means that a web (having a basis weight of 8 to 160 g / m 2 ) made of unheated conjugate fiber is prepared, and this is taken from the melting point of the low melting point component by 10%.
- the heat shrinkage of eb when a specific measurement method is described later
- the web weight is adjusted by knowing the heat shrinkage of the web (the composite fiber is not necessarily 100%). This adjustment does not require much rigor.
- each point surface area is 0. 007 cm distributed on the web surface: the total area thereof in ⁇ 0. 8 cm 2 in large numbers point-plane of the 1 0-4 0% of the web surface,
- the non-woven fabric portion at that position is heated to the heat fusion temperature and pressed to be fused in a point-like manner.
- This heat fusion temperature is a temperature from the softening point of the low melting point component of the conjugate fiber constituting the web to 0 to 5 ° C higher than the melting point of the low melting point component.
- the softening point in the present invention is the vicat softening point obtained by measuring with a load of 1 kgf in accordance with JIS 6758 (Polypropylene test method). Obtained as the temperature at the peak position of the endothermic curve by the calorimeter. The distribution state of each point plane is based on the above conditions (each
- the web In addition to conforming to the area of the 25 points and the% of the total area with respect to the web area), if the web is made of short fibers, there is a high probability that one short fiber spans two or more points. For example, the distance between the centers of the points It is preferable to set the fiber length to 1/10 to 1/3. Even when the web is made of long fibers, it is preferable to set the center-to-center distance according to the purpose of use in terms of shape retention and strength as a nonwoven fabric.
- the heat fusion point so that the heat fusion area has a predetermined distribution.
- One is a method in which a pressing die having a convex body corresponding to the area and distribution of each point face is heated and pressed at a heat fusion temperature, and the basis weight is 10 to 50 g / m. Preferable when about 2 .
- the distribution state (pattern) of the tip surface 1a of the convex body is shown in FIGS. 1 to 3 by enlarging the pattern used in the later-described embodiment as a schematic diagram.
- FIG. 4 and FIG. 5 are also schematic enlarged views, and are distribution examples in which the web surface% is out of the above range.
- the planar shape of the tip surface 1a shown in FIGS. 1 to 5 is a circle having a radius r.
- the distribution state is such that the center of the circle is located at each vertex of a square with a side length of £ shown by a virtual line.
- Table 1 shows the radius ⁇ ⁇ , the length of the side (equal to the distance between the centers of the circles), and the area ratio of the tip surface 1a to the web surface in each figure.
- a hot-embossing fusing device provided with an embossing roll having a convex body having a predetermined distribution as the pressing die is used. It is preferred to use. After the protrusions are separated from the web, the web is cooled to stabilize the heat fusion point.
- Another method of forming the heat fusion point is a method in which the web is heated by ultrasonic waves, and is preferable when the basis weight is about 50 to 200 g / m 2 .
- the procedure is as follows. As shown in Fig. 6, a roll 2 with a convex body 1 corresponding to the area and distribution of each point plane and an ultrasonic horn 3 with the horn tip installed close to the roll 2 are provided. The web 4 is passed between the roll 2 and the horn 3 while rotating the roll 2 using the ultrasonic welding device. Horn 3 has a frequency of about 20, OOOcps, and web 4 is pressed against convex body 1 by horn 3 Are formed in the heat fusion zone. When the heat fusion point is formed, the fusion point is cooled and solidified.
- the web on which the heat fusion point is formed is heated to a crimping temperature to develop a three-dimensional crimp.
- the crimp temperature is a temperature lower than the melting point of the low-melting-point component of the conjugate fiber constituting the web. Generally, a temperature 5 to 20 ° C lower than the above melting point is used.
- three-dimensional crimps appear in the composite fiber, and the apparent length shrinks.
- most of the composite fibers are thermally fused to each other at two or more places separated by a distance corresponding to the center of the heat fusion zone, so that the apparent length shrinks. Even when the fibers are not entangled with each other, the entire fiber assembly is uniformly shrunk.
- the heat-fusion point is formed before the onset of crimp, and the above-mentioned heat-spread point can be used because the heat-sealing surface per one part can be widened and the heat-fusion strength can be sufficiently increased. Even during such shrinkage, the heat fusion point is not loosened.
- the polyolefin-based stretchable nonwoven fabric according to the present invention can be obtained.
- this conjugate fiber is composed of two types of polyolefin resins having melting points different from each other by 10 ° C or more in a parallel type or a resin having a low melting point. It is a composite fiber that is arranged in an eccentric sheath-core type so as to be a sheath component.
- “high crimpability” has the meaning described above.
- High-melting components include crystalline polypropylene, propylene-ethylene copolymer, propylene-butene-11 copolymer, and propylene. Polyolefins mainly composed of propylene-based polymers such as ethylene-butene-11 copolymer are shown.
- a low melting point component its melting point is at least 10 ° C or more than that of a high melting point component, Preferably, a polymer lower than 20 ° C or more is used.
- the reason that the difference in melting point between the two components is required to be 10 ° C or more is that point fusion is performed in a temperature range from the softening point of the low melting point component to a temperature 5 ° C higher than the melting point. If the melting point difference is less than 10 ° C, it will be high due to heating during spot fusion.
- Such a high crimping heat-fusible conjugate fiber is obtained as follows.
- a spinning nozzle having a parallel or eccentric sheath fiber cross section is set in a composite spinning device, and the two types of polyolefin-based resins are used as main raw materials for spinning.
- the drawing conditions are selected so that the spun unstretched yarn has high crimpability. Generally at low temperatures 1.
- the composite fiber used in the present invention is produced through a crimping process such as mechanical crimping as necessary, followed by a drying process (and a cutting process when a stable process is performed).
- the conjugate fiber present in the nonwoven fabric according to the present invention has the above structure, expresses three-dimensional crimp, and has a heat fusion point. not.
- the other organic fibers referred to in the present invention are organic fibers such as cotton, hemp, rayon, polyamide, and polyester, and are obtained by heating at the above-mentioned heat fusion temperature of 0 ° C. It does not deteriorate and is mixed with a high-crimp heat-fusible conjugate fiber of polyolefin at a ratio of 70% by weight or less for the purpose of improving the feeling of the product and water absorption. Used. When the mixing ratio of the organic fibers exceeds 70% by weight, the heat shrinkage of the web becomes small, the stretchability of the obtained nonwoven fabric becomes insufficient, and the heat fusion point of the composite fibers 25 becomes insufficient. However, this is not preferable because it results in an insufficient amount of the nonwoven fabric and a decrease in the strength of the nonwoven fabric.
- Each of the composite fibers was spun using each of the raw materials shown in Table 2 to draw a parallel composite undrawn yarn having a composite ratio of 50:50 at a drawing temperature of 80 ° C and a draw ratio of 2.7 times. This is a composite short fiber having a denier of 2 denier and a fiber length of 51 mm. Table 2 shows the raw material resin and heat shrinkage.
- MFR Melt flow rate (according to Japanese Industrial Standard JIS K 6758)
- a web was made from a single fiber or a mixed fiber using a flat card. These webs were then placed in the heat-sealing area by a fusing device shown in Table 3 (the distribution of the tip end face la of the convex shape of each device is indicated by the number in the attached drawing). A heat fusion point was formed.
- the fusing device was a hot embossing type
- the press-shaped convex was heated to the temperature shown in Table 3 before use.
- the fused material is heated for 5 minutes in a dryer in which hot air circulating at a temperature of 10 ° C lower than the melting point of the low melting point component of the composite fiber constituting the fused material is circulated.
- a non-woven fabric was obtained by performing a shrinkage expression treatment.
- the feeling, nonwoven fabric strength, and elongation recovery rate of the obtained nonwoven fabric were evaluated and measured by the following methods.
- a sensory test was conducted by five panelists, and AAA was determined when all were judged to be software, AA was determined when three or more were judged to be software, and three or more were judged to be software. A was judged to be A when it was judged that the foot feeling was lacking.
- test pieces were measured under the conditions of a gripping interval of 10 cm and a pulling speed of 10 cm / min.
- the unit is [kg / 5cm width].
- a nonwoven fabric strength of 2 kg / 5 cm width or more is practically sufficient.
- JIS L 1096 Stringability of stretchable woven fabric according to the general woven fabric test method
- a test piece with a width of 5 cm and a length of 20 cm was gripped at a distance of 10 cm and a tensile speed of 10 craZ for 12
- After elongation to 1 cm allow 1 minute to elapse in that state, then return to the original position at the same speed to release the load, measure the length (L cm) after standing for 3 minutes, and use the following formula. Then, the elongation recovery rate is calculated.
- the elongation recovery rate is 90% or more.
- Table 3 shows the evaluation results. According to Table 3, the examples satisfying all of the conditions specified in the present invention are excellent in feeling and elongation recovery rate, and have low strength of nonwoven fabric and are practically sufficient. On the other hand, it can be seen that each of the comparative examples that did not satisfy even one of the above conditions had insufficient one of the above characteristics. Table 3 Properties of nonwoven fabric
- the polyolefin-based crimpable nonwoven fabric according to the present invention obtained as described above has a polyolefin-based high-crimpable heat-sealing as its main constituent fiber.
- the composite fibers are used, and are formed only in the heat-bonded area where the heat-bonded points are distributed in a dot-like manner on the non-woven fabric, and the bond is formed before the onset of crimp. You. Therefore, each conjugate fiber has few fusion spots, but because it is securely fused, the elasticity peculiar to three-dimensional crimping is fully utilized to form a nonwoven fabric. It has excellent elasticity and feel, and in addition, has practically sufficient nonwoven strength. BRIEF DESCRIPTION OF THE FIGURES
- FIGS. 1 to 3 are plan views showing various distribution examples of a push-shaped convex body used for manufacturing a nonwoven fabric.
- FIGS. 4 and 5 are similar to FIGS. 1 to 3, but show the case where the total area of the dotted surface is less than 10% and the case where it exceeds 40%.
- Fig. 6 is a schematic diagram when a nonwoven fabric is manufactured by an ultrasonic welding device.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91908650A EP0481092B1 (de) | 1990-05-01 | 1991-05-01 | Dehnbarer vliesstoff aus polyolefinen und seine herstellung |
KR1019910702007A KR960001403B1 (ko) | 1990-05-01 | 1991-05-01 | 폴리올레핀계 신축성 부직포 및 그 제조 방법 |
DE59108568T DE59108568D1 (de) | 1990-05-01 | 1991-05-01 | Dehnbarer vliesstoff aus polyolefinen und seine herstellung |
GB9127501A GB2250303B (en) | 1990-05-01 | 1991-12-30 | Method of making polyolefin containing stretch non-woven fabric |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2/111848 | 1990-05-01 | ||
JP2111848A JP2910862B2 (ja) | 1990-05-01 | 1990-05-01 | ポリオレフイン系伸縮性不織布及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991017296A1 true WO1991017296A1 (fr) | 1991-11-14 |
Family
ID=14571683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/000594 WO1991017296A1 (fr) | 1990-05-01 | 1991-05-01 | Tissu de polyolefine non tisse etirable et production d'un tel tissu |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0481092B1 (ja) |
JP (1) | JP2910862B2 (ja) |
KR (1) | KR960001403B1 (ja) |
AU (1) | AU639564B2 (ja) |
CA (1) | CA2060888C (ja) |
DE (1) | DE59108568D1 (ja) |
GB (1) | GB2250303B (ja) |
WO (1) | WO1991017296A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5382400A (en) | 1992-08-21 | 1995-01-17 | Kimberly-Clark Corporation | Nonwoven multicomponent polymeric fabric and method for making same |
GB2282054B (en) | 1993-08-31 | 1997-05-07 | Kimberly Clark Co | Disposable panty |
JP3065883B2 (ja) * | 1994-04-15 | 2000-07-17 | 花王株式会社 | 不織布及びその製造方法並びに吸収性物品 |
JPH1077566A (ja) * | 1996-07-11 | 1998-03-24 | Uni Charm Corp | 不織布およびその製造方法 |
DE19733493C2 (de) * | 1997-08-01 | 1999-05-12 | Corovin Gmbh | Verfahren zur Herstellung eines Spinnvlieses aus thermobondierten gekräuselten Bikomponentenfasern |
US6454989B1 (en) | 1998-11-12 | 2002-09-24 | Kimberly-Clark Worldwide, Inc. | Process of making a crimped multicomponent fiber web |
JP3662469B2 (ja) * | 2000-03-31 | 2005-06-22 | ユニ・チャーム株式会社 | 弾性伸縮性複合シートの製造方法 |
JP2007216034A (ja) * | 2007-03-16 | 2007-08-30 | Kao Corp | 吸収性物品用シート |
CN103221600B (zh) * | 2010-11-25 | 2016-07-06 | 三井化学株式会社 | 纺粘非织造布层叠体 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58169560A (ja) * | 1982-03-26 | 1983-10-06 | 日本バイリーン株式会社 | 不織布の製造方法 |
JPS58174668A (ja) * | 1982-04-05 | 1983-10-13 | 株式会社クラレ | 不織布の製造方法 |
JPS6134268A (ja) * | 1984-07-11 | 1986-02-18 | ミネソタ マイニング アンド マニユフアクチユアリング コンパニー | 断熱性伸縮不織布およびその製造法 |
JPH01148859A (ja) * | 1987-12-04 | 1989-06-12 | Chisso Corp | 伸縮性不織布 |
JPH02191757A (ja) * | 1989-01-18 | 1990-07-27 | Daiwabo Co Ltd | 伸縮性不織布 |
JPH02221450A (ja) * | 1989-02-20 | 1990-09-04 | Kuraray Co Ltd | 高伸縮性不織布の製造方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4619155A (en) * | 1982-04-15 | 1986-10-28 | Koyo Jidoki Kabushiki Kaisha | Rack and pinion steering device |
CA1281864C (en) * | 1985-10-07 | 1991-03-26 | Henry Louis Griesbach, Iii | Nonwoven web with improved softness |
DE3788134T2 (de) * | 1986-09-19 | 1994-03-10 | Komatsu Mfg Co Ltd | Dünnfilmanordnung. |
JPS6448859A (en) * | 1987-08-19 | 1989-02-23 | Shinetsu Chemical Co | Silicone composition for impregnation of electronic component |
JPH0753089B2 (ja) * | 1987-10-02 | 1995-06-07 | 日産化学工業株式会社 | 霊芝含有粒剤 |
DE3736276C1 (de) * | 1987-10-27 | 1989-05-18 | Pelz & Co Kg W | Verfahren zur Herstellung von Wattetupfern und Anlage zur Herstellung eines solchen Wattetupfers nach diesem Verfahren |
JPH0221450A (ja) * | 1988-07-07 | 1990-01-24 | Mitsubishi Electric Corp | 再生装置の制御装置 |
JP2727242B2 (ja) * | 1989-10-18 | 1998-03-11 | 三菱レイヨン株式会社 | フロッピーディスクジャケット用ライナー |
JP3897196B2 (ja) * | 1996-09-20 | 2007-03-22 | ソニー株式会社 | 振れ補正装置 |
JP2763769B2 (ja) * | 1997-04-24 | 1998-06-11 | 旭化成工業株式会社 | 金網製作用横筋供給装置における横筋移送構造 |
-
1990
- 1990-05-01 JP JP2111848A patent/JP2910862B2/ja not_active Expired - Lifetime
-
1991
- 1991-05-01 EP EP91908650A patent/EP0481092B1/de not_active Expired - Lifetime
- 1991-05-01 CA CA002060888A patent/CA2060888C/en not_active Expired - Lifetime
- 1991-05-01 DE DE59108568T patent/DE59108568D1/de not_active Expired - Lifetime
- 1991-05-01 KR KR1019910702007A patent/KR960001403B1/ko not_active IP Right Cessation
- 1991-05-01 AU AU77699/91A patent/AU639564B2/en not_active Ceased
- 1991-05-01 WO PCT/JP1991/000594 patent/WO1991017296A1/ja active IP Right Grant
- 1991-12-30 GB GB9127501A patent/GB2250303B/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58169560A (ja) * | 1982-03-26 | 1983-10-06 | 日本バイリーン株式会社 | 不織布の製造方法 |
JPS58174668A (ja) * | 1982-04-05 | 1983-10-13 | 株式会社クラレ | 不織布の製造方法 |
JPS6134268A (ja) * | 1984-07-11 | 1986-02-18 | ミネソタ マイニング アンド マニユフアクチユアリング コンパニー | 断熱性伸縮不織布およびその製造法 |
JPH01148859A (ja) * | 1987-12-04 | 1989-06-12 | Chisso Corp | 伸縮性不織布 |
JPH02191757A (ja) * | 1989-01-18 | 1990-07-27 | Daiwabo Co Ltd | 伸縮性不織布 |
JPH02221450A (ja) * | 1989-02-20 | 1990-09-04 | Kuraray Co Ltd | 高伸縮性不織布の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0481092A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP2910862B2 (ja) | 1999-06-23 |
GB9127501D0 (en) | 1992-02-19 |
KR960001403B1 (ko) | 1996-01-26 |
EP0481092A1 (de) | 1992-04-22 |
AU639564B2 (en) | 1993-07-29 |
KR920702738A (ko) | 1992-10-06 |
GB2250303B (en) | 1994-10-05 |
CA2060888C (en) | 1999-01-05 |
CA2060888A1 (en) | 1991-11-02 |
GB2250303A (en) | 1992-06-03 |
JPH0465562A (ja) | 1992-03-02 |
DE59108568D1 (de) | 1997-04-03 |
AU7769991A (en) | 1991-11-27 |
EP0481092B1 (de) | 1997-02-26 |
EP0481092A4 (en) | 1992-10-07 |
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