WO2020235613A1 - メッシュ状フック面ファスナーおよびその染色方法 - Google Patents

メッシュ状フック面ファスナーおよびその染色方法 Download PDF

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Publication number
WO2020235613A1
WO2020235613A1 PCT/JP2020/020018 JP2020020018W WO2020235613A1 WO 2020235613 A1 WO2020235613 A1 WO 2020235613A1 JP 2020020018 W JP2020020018 W JP 2020020018W WO 2020235613 A1 WO2020235613 A1 WO 2020235613A1
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WIPO (PCT)
Prior art keywords
hook
shape
loop fastener
mesh
engaging element
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Ceased
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PCT/JP2020/020018
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English (en)
French (fr)
Japanese (ja)
Inventor
一則 高▲くわ▼
小野　悟
佳克 藤澤
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Kuraray Fastening Co Ltd
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Kuraray Fastening Co Ltd
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Priority to JP2021520829A priority Critical patent/JP7433308B2/ja
Publication of WO2020235613A1 publication Critical patent/WO2020235613A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners

Definitions

  • the present invention is an integrally molded hook-and-loop fastener composed of a base sheet and a large number of hook-type engaging elements that rise from the base sheet, and the base sheet is mesh-shaped, dyed, and disengaged.
  • the hook-type engaging element and the base sheet are less likely to be destroyed or the loop surface fastener of the engaging partner is less likely to be damaged, and the mesh-shaped hook surface having excellent shapeability and flexibility to the object to be attached is not required.
  • a hook-and-loop fastener having a hook-type engaging element is fixed to the surface of either the object or the object, and the other surface is fixed.
  • a surface fastener having a loop-type engaging element is fixed to the surface, and the engaging element surfaces of both surface fasteners are overlapped and both engaging elements are engaged to engage the surface of the object.
  • a method of fixing an object is used.
  • a strong tensile force is applied to the hook-and-loop fastener used in such a field of application, but a high engaging force that does not disengage even with such a tensile force is required.
  • the engaging element is thin and the hook type engaging element is easily opened by the pulling force, and the loop type engaging element contained in the hook. Since the element can be easily separated, a hook-and-loop fastener that can obtain a higher engaging force is required.
  • a molded hook-and-loop fastener in which a large number of hook-type engaging elements are integrally molded on a resin base sheet is known.
  • the hook type engaging element is thick, and the hook shape is difficult to open with a low force, so that a high engaging force can be obtained.
  • the hook-and-loop fasteners used in the fields of application such as shoes, supporters, and belts as described above need to be colored so as to match the user's taste, and are colored in various colors. Things need to be able to be supplied promptly.
  • a colorant such as a pigment or a dye is added to the raw material resin.
  • a colorant-containing resin in the case of such a method of adding a colorant at the stage of the raw material before molding. Since a large amount of hook-and-loop fasteners of the same color are manufactured, it is difficult to immediately manufacture and deliver the hook-and-loop fasteners of various different colors in response to the demands of users.
  • fluorescent-colored materials have been preferred as materials for constituting sports shoes and the like, and surface fasteners used for such applications are also required to be fluorescent-colored. If the method of adding the fluorescent pigment at the stage of the raw material before molding is used, the fluorescent pigment is likely to be deteriorated by the heat at the time of molding, and there is also a problem that a molded surface fastener having a bright fluorescent color cannot be obtained. ..
  • a method of dyeing the manufactured hook-and-loop fastener later that is, a method called a post-dyeing method is used, and the uncolored material produced in advance is used. Since it is sufficient to dye the molded surface fastener after hearing the desired color from the user, it is possible to immediately supply the surface fastener colored in the desired color even in a small amount. Further, by using this post-dyeing method, a surface fastener colored in a bright fluorescent color can be easily obtained.
  • Patent Document 1 as a surface fastener to be dyed, a so-called molded surface fastener in which a large number of engaging elements are provided on a substrate sheet obtained by extrusion molding of plastic can also be dyed.
  • a molded surface fastener In the case of, it is described that the dyeing liquid must be circulated in parallel with the base sheet because the base sheet does not allow the dyeing liquid to pass through.
  • the dye liquid only flows in parallel with the base sheet of the surface fastener, so that the molded surface fastener wound in a roll shape
  • the gap between the wound molded surface fasteners is the conditions for winding the molded surface fasteners in a roll shape, the pressing state when handling the rolled-up molded surface fasteners, and inserting the roll-shaped molded surface fasteners into the dyeing kettle.
  • the molded surface fastener has a thick engaging element as described above, a high engaging force can be obtained, but on the other hand, it is easy to cut the loop-shaped engaging element of the loop surface fastener of the engaging partner. In order to prevent this, if the loop-shaped engaging element is made high in strength, the hook type engaging element is damaged, and the hook portion of the hook type engaging element is cut or the substrate is used. The sheet will tear.
  • Molded hook-and-loop fasteners in which the base sheet is in the form of a mesh are known.
  • a first set of compositionally deformed plurality of thermoplastic strands and the first set of strands are integrally molded and formed. It includes a plurality of second sets of strands that are not on the same plane as the first set of strands and intersect the first set of strands, and at least one set of strands and a second set of strands.
  • a mesh-shaped hook-and-loop fastener with a hook-type engaging element is described on one side. It is described that such a mesh-shaped hook-and-loop fastener is suitable as a locking tool for disposable diapers because it has breathability.
  • Patent Document 2 does not describe dyeing a hook-and-loop fastener, and further, only describes disposable clothing represented by a diaper, and describes an application requiring dyeing by a post-dyeing method. Not listed. Moreover, Patent Document 2 describes thermoplastic resins such as polyolefin resins, polyvinyl chloride, polystyrene, nylon, and polyethylene terephthalate as resins used for such mesh-shaped molded surface fasteners.
  • thermoplastic resins such as polyolefin resins, polyvinyl chloride, polystyrene, nylon, and polyethylene terephthalate as resins used for such mesh-shaped molded surface fasteners.
  • the manufactured hook-and-loop fasteners have poor elasticity. Therefore, elasticity is required for joining the tongue pieces on the left and right of the purchasing part at the instep of the shoe, and for supporters and belts that are wrapped around the arms, legs, and waist, and shapeability to the object to be attached is required.
  • the hook-and-loop fastener described in this patent document does not have sufficient elasticity and shape-reaching property, and tends to impair the texture of the object to be attached.
  • the present invention is a hook type hook-and-loop fastener suitable for applications requiring post-dyeing, such as joining the left and right tongue pieces of the purchasing part on the instep of shoes, and supportingers and belts wrapped around the arms, legs and waist. It is an integrally molded hook-and-loop fastener with a coupling element, and is uniformly dyed without dyeing spots by the post-dyeing method.
  • An object of the present invention is to provide a hook-and-loop fastener that does not easily damage the loop-shaped engaging element of the loop-side fastener.
  • Another object of the present invention is to provide an integrally molded hook-and-loop fastener having a hook-type engaging element that is uniformly and vividly dyed with a fluorescent dye without dyeing spots by a post-dyeing method. Furthermore, it is an object of the present invention to provide a method for dyeing such a hook-and-loop fastener.
  • the present invention is a hook-and-loop fastener having a substrate sheet (A) and a large number of hook-type engaging elements (B) existing on the surface side thereof.
  • the substrate sheet (A) has a linear portion group layer (A 1 ) in which a plurality of linear portions (a 1 ) are arranged side by side in parallel at intervals on the same plane, and a shape retention that rises from the back surface thereof. It is provided with a shape-retaining protrusion row group layer (A 2 ) in which a plurality of protrusion rows (a 2 ) are formed side by side in parallel at intervals.
  • the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) intersect, and at the intersection, the mesh shape is integrated.
  • the mesh-shaped hook-and-loop fastener is characterized in that both the substrate sheet (A) and the hook-type engaging element (B) are made of a thermoplastic elastomer resin and are dyed.
  • thermoplastic elastomer resin is preferably a polyester elastomer or a polyamide elastomer
  • hook-type engaging element (B) protrude from the stem and the distal end projecting from the linear portion group layer (A 1) only in the length direction of the linear portion (a 1) projections the mesh-like hook surface fastener made of parts, and preferably, the shape-retaining projections Retsujo (a 2) may be stretched, is the above mesh-like hook surface fastener which is molecularly oriented in the longitudinal direction.
  • the cross-sectional shape of the shape-retaining projecting row (a 2 ) on the plane perpendicular to the length direction is intermediate between the shaft portion protruding from the linear portion group layer (A 1 ) and the shaft portion, or
  • the above-mentioned mesh-shaped hook-and-loop fastener having a shape having a bulge at the tip and the shape being continuous in the length direction, and the width of the bulge is 1.5 to 1.5 to the width of the shaft.
  • the above-mentioned mesh-shaped hook-and-loop fastener which is four times as large.
  • the present invention is the above-mentioned mesh-shaped hook-and-loop fastener in which the width of the base sheet (A) is 40 mm or more, and the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) are 30 to 85 degrees. It is the above-mentioned mesh-like hook-and-loop fastener that intersects at the angle of.
  • the angle formed by the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) here refers to an acute angle of 90 degrees or less.
  • the present invention is the above-mentioned mesh-shaped hook-and-loop fastener in which a dye is applied to all of the linear portion (a 1 ), the shape-retaining protrusions (a 2 ), and the hook-type engaging element (B). ..
  • a sheet made of an elastomer is integrated on the back surface of the mesh-shaped hook-and-loop fastener, and the shape-retaining projecting rows (a 2 ) are embedded in the sheet as an embedded element.
  • the hook type engaging element (B) and the linear portion group layer (A 1 ) are mesh-shaped hook-and-loop fasteners exposed from the sheet surface.
  • the present invention also provides shoes, supporters or belts to which the above mesh hook surface fastener is sewn attached as a locking tool, and a surface fastener to which a fluorescent dye is applied by dyeing is used. We provide the above shoes, especially sports shoes.
  • the present invention is a hook-and-loop fastener having a base sheet (A) and a large number of hook-type engaging elements (B) existing on the surface side thereof, and the base sheet (A) is linear.
  • the linear part group layer (A 1 ) formed by arranging a plurality of parts (a 1 ) in parallel at intervals on the same plane and the shape-retaining protruding rows (a 2 ) rising from the back surface thereof are separated from each other. It is provided with a shape-retaining protrusion row group (A 2 ) formed in parallel with each other, and the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) are provided.
  • the base sheet (A) and the hook type engaging element (B) are both made of a thermoplastic elastomer resin in a mesh-like hook-and-loop fastener.
  • This is a method for dyeing a mesh-shaped hook-and-loop fastener, characterized in that a long object is wound in a roll shape and then brought into contact with a dye solution for dyeing.
  • the thermoplastic elastomer resin is a polyester elastomer or a polyamide elastomer
  • the dye solution contains a disperse dye
  • in the case of a polyamide elastomer, an acidic dye is contained.
  • This is a dyeing method.
  • it is the above-mentioned dyeing method in which the dye solution contains a fluorescent dye.
  • the mesh-shaped hook-and-loop fastener is a plurality of hook-type engaging elements (B) existing parallel to the surface of the resin layer (R) in the length direction.
  • the hook-type engaging element row strips are formed on a strip having a element row strip (K) and a plurality of shape-retaining protrusion rows (a 2 ) existing parallel to each other in the length direction on the back surface.
  • a cut (E) is made from the top to the boundary between the resin layer (R) and the shape-retaining protrusion row (a 2 ) in a direction intersecting the length direction of the strip, and then the strip is lengthened. It is preferably manufactured by a method of stretching in the longitudinal direction.
  • the linear portion (a 1 ), the shape-retaining protrusions (a 2 ), and the hook type engaging element (B) are all formed of the thermoplastic elastomer.
  • the substrate sheet (A) has a linear portion group layer (A 1 ) which is an aggregate of a plurality of linear portions (a 1 ) arranged in parallel on the same plane at predetermined intervals, and a linear portion (a).
  • a group of shape-retaining protrusions (A 2 ) which is an aggregate of a plurality of shape-retaining protrusions (a 2 ) arranged in parallel on the same plane at predetermined intervals so as to intersect with 1 ). And have.
  • the shape-retaining protrusion row (a 2 ) rises from the back surface of the linear portion (a 1 ), that is, the shape-retaining protrusion row (a 2 ) is formed on the back surface side of the linear portion (a 1 ).
  • the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) are integrated in an overlapping manner. As a result, a large number of openings surrounded by two adjacent linear portions (a 1 ) and two adjacent shape-retaining projection rows (a 2 ) are formed.
  • the dyeing liquid can be taken in and out from this opening at the time of dyeing. Therefore, as in the case of the conventional molded surface fastener, the flow of the dyeing liquid is limited to the direction parallel to the gap between the overlapping substrate sheets of the molded surface fastener wound in a roll shape. It is not required that the gaps in the wound state of the wound molded surface fastener are extremely uniform, and a surface fastener dyed uniformly and in a dark color without uneven dyeing can be easily obtained.
  • the shape-retaining protruding rows (a 2 ) existing on the back surface side are between the hook-and-loop fasteners when the surface fastener is wound in a roll shape. has the function to keep the gap distance, and that the presence of a shape-retaining projections Retsujo (a 2) will be able to sufficiently contact with the dye solution, dyeable uniformly uneven dyeing without.
  • the cross-sectional shape of the shape-retaining protruding row (a 2 ) on the surface perpendicular to the length direction has a bulge in the middle or tip of the shaft portion protruding from the sheet layer (A 1 ) and the shaft portion.
  • the bulge portion is formed between the hook-type engaging elements existing on the surface of the surface fastener. It is possible to prevent the strip (a 2 ) from being depressed, to easily maintain the gap between the hook-and-loop fasteners, and to dye evenly without stains.
  • innumerable openings are present, and further, shape-retaining protrusions (a 2 ) are present on the back surface side, preferably an intermediate portion thereof.
  • shape-retaining protrusions are present on the back surface side, preferably an intermediate portion thereof.
  • the presence of the bulging portion at the tip portion significantly improves the dyeability.
  • the hook-and-loop fastener of the present invention is flexible, has high elasticity, and has high conformability to the object to be attached. Therefore, since the hook-and-loop fastener is attached, the flexibility is not impaired and the feel is extremely gentle.
  • the force can be absorbed by the mesh structure of the substrate sheet. Therefore, unlike the conventional molded surface fastener, only the hook type engaging element supports a large amount of force, and as a result, the protruding portion of the hook type engaging element is less likely to be cut from the stem portion. Further, in the case of the molded hook-and-loop fastener of the present invention, since the mesh structure made of the thermoplastic elastomer disperses the force applied to the base sheet widely on the base sheet, the force is concentrated on a specific place on the base sheet. It is possible to prevent the substrate sheet from being torn.
  • the force applied to the hook-type engaging element is widely dispersed by the mesh structure made of thermoplastic elastomer, preventing the force from concentrating on a specific loop-shaped engaging element, and as a result, the loop hook-and-loop fastener of the engaging partner. It is possible to prevent the loop-shaped engaging element of the above from being damaged.
  • a mesh-shaped molded hook-and-loop fastener is manufactured from a non-elastomer-based thermoplastic resin, specifically, an elastomer-based resin is laminated with a non-elastomer-based thermoplastic resin to form a molded surface. It is described that the fastener is manufactured. However, since the elasticity of the molded surface fastener produced by such a method is controlled by the non-elastomer resin, the merit of elasticity due to the use of the elastomer resin is greatly hindered.
  • the resin constituting the mesh-shaped hook-and-loop fastener of the present invention is a thermoplastic elastomer, particularly a polyester elastomer or a polyamide elastomer
  • the dye easily penetrates into the soft segment region of the elastomer, resulting in extremely dark color and dyeing.
  • a molded surface fastener that is uniformly dyed without unevenness can be easily obtained by the post-dyeing method.
  • FIG. 3 It is a perspective view which shows an example of the mesh hook surface fastener of this invention schematically. It is a cross-sectional view of a part of an example of the extrusion molding nozzle used for manufacturing the mesh hook surface fastener of this invention. It is a perspective view of an example at the time of making a cut in the extruded molded product (sheet-shaped strip) in the middle of manufacturing the mesh-shaped hook-and-loop fastener of the present invention. It is a figure which looked at the molded article which made the cut of FIG. 3 from the X direction.
  • a preferred example of the mesh-shaped hook surface fastener (1) of the present invention is a surface fastener as shown in FIG.
  • a hook type engaging element (B) is erected on the surface side of the linear portion (a 1 ), and the hook type engaging element (B) is linear.
  • the shape-retaining protrusions (a 2 ) existing on the back surface side of the portion (a 1 ) are arranged in rows at regular intervals in the length direction.
  • the substrate sheet (A) has a linear portion group layer (A 1 ) which is an aggregate of a plurality of linear portions (a 1 ) arranged in parallel on the same plane at predetermined intervals, and a linear portion.
  • a group of shape-retaining protrusions (A) which is an aggregate of a plurality of shape-retaining protrusions (a 2 ) arranged in parallel on the same plane at predetermined intervals so as to intersect with (a 1 ). 2 ) and.
  • each of the hook type engaging elements (B) rises substantially vertically from the surface of the substrate sheet (A) (to be exact, the surface of the linear portion (a 1 )).
  • Each hook type engaging element (B) is a line from the stem portion (S) extending from the root portion (the surface of the base sheet (A), to be exact, the linear portion (a 1 )) and the middle or top portion thereof. It is composed of a protruding portion (M) extending in the length direction of the shaped portion (a 1 ). In FIG. 1, the protruding portion (M) protrudes from the top of the stem portion (S).
  • the protruding portion (M) may protrude from the stem portion (S) on both sides, on only one side, or in multiple stages up and down.
  • FIG. 1 shows a case where the protruding portion (M) protrudes from the stem portion (S) in one step on both sides.
  • the hook type engaging element has a shape such as T-shaped, arrowhead-shaped, inverted J-shaped, inverted L-shaped, etc., and the lower surface side of the protruding portion (M) is the loop shape of the engaged loop hook-and-loop fastener. It has a function of fastening the engaging element fiber.
  • FIG. 1 shows a T-shaped case.
  • each hook type engaging element (B) and the surface in the width direction of the linear portion (a 1 ) form the same surface as shown in FIG. 1 as a natural result from the manufacturing method described later. ing.
  • the cross section of the linear portion (a 1 ) in the length direction includes an upper surface, a lower surface, and both side surfaces (that is, a cut surface formed by inserting a cut described later). It has the shape of a quadrangle square, rectangle or parallelogram surrounded by.
  • a plurality of linear portions (a 1 ) are arranged in parallel on the same plane at intervals, and are a group of linear portions as an upper layer of the substrate sheet (A), that is, a layer close to the hook type engaging element (B). It forms a layer (A 1 ).
  • the lower layer of the substrate sheet (A), that is, the shape-retaining protrusion rows (a 2 ) forming the shape-retaining protrusion rows (A 2 ) is a linear portion (a). It intersects with 1 ) in the direction of intersection.
  • Each shape-retaining projections Retsujo (a 2) is also linear portion (a 1) and similarly, the same surface at a neighboring parallel to existing set of shape-retaining projections Retsujo and (a 2) Interval Lined up in.
  • the substrate sheet (A) has a large number of openings (10) formed by two adjacent linear portions (a 1 ) and two adjacent shape-retaining protrusion rows (a 2 ). The dyeing liquid enters and exits through the opening (10) during dyeing, and the dyeing uniformity of the hook surface fastener (1) to be molded is remarkably improved.
  • each of the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) formed by the base sheet (A) is They are lined up in parallel at intervals, and these linear parts (a 1 ) and the shape-retaining protrusion rows (a 2 ) do not exist on the same surface, but they intersect and overlap and are integrated. As a result, it is characterized by having a mesh shape. It is preferable that a thermoplastic elastomer resin is used as the constituent resin.
  • thermoplastic elastomer resin examples include polyurethane resins, styrene elastomer resins, polyamide elastomer resins, polyolefin elastomer resins, soft vinyl chloride resins, and polyester elastomers, and these elastomer resins generally have dye molecules in the soft segment region. Is easy to adsorb, and it is easy to obtain a dark-colored dyed product by dyeing. Among them, polyester elastomer and polyamide elastomer are particularly excellent in dyeability compared to other elastomer resins, and dye polyester fiber and nylon fiber. It is possible to dye extremely vividly with a dispersion dye or an acidic dye under the same dyeing conditions as the above.
  • polyester elastomers and polyamide elastomers are resins that have sufficient elastomeric properties despite having a higher elastic coefficient than other elastomer resins, and relative movements occur from various directions.
  • a hook-and-loop fastener that has excellent followability of the hook-and-loop fastener, is not easily damaged, and is not easily disengaged from the engaging partner can be obtained, and the hook-and-loop fastener is attached by sewing. Even in this case, tearing from the seams caused by sewing or hand sewing is unlikely to occur.
  • the polyester elastomer is a copolymer of polyoxytetramethylene glycol with a resin having a butylene terephthalate unit as a main repeating unit, and is described above from other general elastomer resins such as polyurethane, styrene elastomer, and olefin elastomer. Despite its high elasticity, it is a resin that has sufficient properties of an elastic polymer.
  • the proportion of the [poly (oxytetramethylene)] terephthalate group in the polyester elastomer is preferably in the range of 40 to 70% by weight, more preferably 50 to 60% by weight.
  • the polyamide elastomer is an elastomer containing a polyamide block such as 6 blocks of nylon, 11 blocks of nylon, and 12 blocks of nylon as a hard segment component, and a polyether such as polyethylene glycol and polytetramethylene glycol and an aliphatic polyester as a soft segment component. Similar to polyester elastomers, it has sufficient properties of elastic polymers even though it has a higher elastic coefficient than other general elastomer resins. In the present invention, the proportion of soft segments is preferably 30 to 80% by weight.
  • the mesh-shaped hook surface fastener (1) of the present invention is most preferably formed of the polyester elastomer alone or the polyamide elastomer alone, but when the polyester elastomer, the polyamide elastomer or a mixture thereof is used. May be further blended with other elastomer resins such as polyolefin-based elastomers, styrene-based elastomers, and polyurethane-based elastomers, and resins other than elastomers such as polyolefin-based resins, polyester-based resins, polyamide-based resins, and chlorides.
  • elastomer resins such as polyolefin-based elastomers, styrene-based elastomers, and polyurethane-based elastomers
  • resins other than elastomers such as polyolefin-based resins, polyester-based resins, polyamide-based resins, and chlorides.
  • a vinyl resin, an ethylene-vinyl alcohol copolymer, or the like may be blended as a small amount component. Further, in addition to this, a plasticizer, various stabilizers, a weather resistant agent, a cross-linking agent, an antibacterial agent, a filler, a flameproofing agent, an antistatic agent, a reinforcing material, a conductive agent and the like may be added.
  • polyester elastomers and polyamide elastomers Even with such polyester elastomers and polyamide elastomers, sufficient elasticity and shape property can be obtained simply by using them in a continuous substrate layer having no opening made of a conventional resin sheet. In addition, it is difficult to prevent the flexibility and texture of the object to be attached from being impaired, and it is difficult to widely disperse the force applied to the hook type engaging element on the substrate sheet.
  • the substrate sheet (A) have an elastic mesh structure. Further, the mesh structure disperses the force applied to the hook type engaging element (B) and prevents the hook surface fastener (1) from being destroyed. That is, a large amount of force is applied to a specific hook type engaging element to prevent the hook type engaging element from being destroyed by distributing the force to a plurality of hook type engaging elements by the elastic mesh structure. I'm out.
  • the hook type engaging element (B) is made of a thermoplastic elastomer
  • the hook type engaging element (B) is tilted and the loop element is hooked.
  • the height of the hook type engaging element (B) is made lower than that of the conventional one in order to reduce the tilt of the hook type engaging element (B). It is preferable to do so.
  • the height of the hook type engaging element is generally in the range of 1.2 to 2.0 mm, but in the present invention, the hook type engaging element ( The height of B) is preferably 0.5 to 1.1 mm, which is lower than that of the conventional one, and more preferably in the range of 0.6 to 0.9 mm.
  • the density of such a small hook type engaging element (B) is preferably in the range of 30 to 70 elements / cm 2 . Further, the fact that there are 3 to 8 per cm in a direction perpendicular to the stretching direction of the hook surface fastener (1) in which a row of such small hook type engaging elements (B) is formed is a factor in engaging force. It is preferable in terms of the strength of the hook-and-loop fastener. In FIG. 1, the arrow direction is the stretching direction.
  • the hook type engaging element (B) is composed of a stem portion (S) and a protruding portion (M) extending to the side thereof, and the protruding portion in the length direction of the linear portion (a 1 ).
  • (M) protrudes from the stem portion (S) and extends, it is preferable that the protruding portion (M) does not protrude other than in the length direction of the linear portion (a 1 ).
  • the protruding portion (M) has substantially the same width from the stem portion (S) to the tip. Since the width directions of the stem portion (S), the protruding portion (M), and the linear portion (a 1 ) are the same as described above, the widths thereof are the same, and 0.2 to 0.
  • the range of 5 mm is preferable in terms of engaging force and the strength of the hook-and-loop fastener, and more preferably the range of 0.3 to 0.4 mm.
  • the cross-sectional area of the hook type engaging element (B) in the middle portion in the height direction of the stem portion (S) parallel to the linear portion (a 1 ) is 0.05 to 0.20 mm 2 .
  • the protrusion length (length along the direction orthogonal to the arrow direction (extension direction) in FIG. 1) from the stem portion (S) of the protrusion (M) is 0.3 to 1.0 mm, and the protrusion (M). ) Is preferably 0.15 to 0.50 mm as the average thickness (length along the height direction of the stem portion (S)), respectively, in terms of engaging force and strength, respectively.
  • the thickness of the linear portion (a 1 ) (the length along the height direction of the stem portion (S)) is in the range of 0.1 to 0.4 mm, and the adjacent linear portions (a 1 ). As the distance between the two, it is preferable that a space having a width of 0.2 to 1.0 mm is formed between them in terms of engaging force, strength, elasticity, and dyeability.
  • the mesh-shaped hook-and-loop fastener (1) of the present invention has a plurality of hook-type engaging element rows existing parallel to the front surface in the length direction, and the back surface in the length direction.
  • the strip-shaped body of the base sheet having a plurality of shape-retaining protruding rows existing in parallel has a shape extending from the top of the hook-type engaging element rows to the back surface of the base sheet. It is manufactured by a method in which a cut that does not reach the holding protrusion row is made in a direction intersecting the length direction of the strip, and the strip is stretched in the length direction.
  • the melt of the thermoplastic elastomer resin is extruded from a slit-shaped nozzle as shown in FIG. 2, cooled and solidified, and a plurality of hook-type engaging element rows (K) on the front surface and a plurality of rows (K) on the back surface.
  • a wide sheet-like strip (20) having a shape-retaining projection row (a 2 ) and a resin layer (R) in the middle is formed.
  • F is a slit portion for a hook type engaging element row (K)
  • G is a slit portion for an intermediate resin layer (R)
  • H is a shape-retaining protrusion row (a 2 ). Represents a slit portion.
  • the sheet-shaped strip (20) has a hook type in a direction intersecting the length direction of the strip (20) (that is, the X direction shown in FIG. 3).
  • a cut (E) from the top of the engaging element row (K) to the back surface of the resin layer (R) below it (that is, do not make a cut in the shape-retaining protrusion row (a 2 )).
  • the strip-shaped body (20) having the cut (E) thus formed is stretched in its length direction (direction orthogonal to the X direction in FIG. 3).
  • the mesh-shaped hook-and-loop fastener (1) is formed.
  • the thickness of the resin layer (R) is preferably in the range of 0.1 to 0.4 mm, particularly 0.2 to 0.3 mm. This thickness is almost unchanged even after stretching. Therefore, since this resin layer (R) becomes the linear portion (a 1 ) of the mesh-shaped hook-and-loop fastener (1), this thickness becomes the thickness of the linear portion (a 1 ).
  • the width of the resin layer (R) (that is, the length of the sheet-shaped strip (20) before stretching in the direction of arrow X in FIG. 3) is preferably 10 to 200 mm, particularly preferably 50 to 150 mm. If it is too wide, it will be difficult to make cuts in the hook type engaging element columns and the resin layer at high speed and at a uniform depth.
  • the dyeing liquid when the dyeing liquid is wound in a roll shape in the form of a wide sheet-like strip having a width of 40 mm or more and dyed, the dyeing liquid is applied to the surface fastener from above and below the roll of the roll-shaped wound product. Since the flow is only in the direction parallel to the surface of the surface, dyeing spots are extremely likely to occur, and in order to prevent this, a wide tape-like material is slit into a narrow width and dyed.
  • the dyeing liquid can enter and exit through the innumerable openings (10) existing in the base sheet (A), and the shape-retaining protrusions (a 2 ) are projected on the back surface. Therefore, it can be dyed as it is. Therefore, even if the sheet-like strip-shaped body (20) has a wide width of 40 mm or more, dyeing without dyeing can be performed.
  • the cuts (E) to be inserted into the hook type engaging element row (K) and the resin layer (R) are at intervals of 0.2 to 0.5 mm, particularly at intervals of 0.3 to 0.4 mm, and the intervals are constant. It is preferable to put them in parallel so as to be. This interval becomes the width of the linear portion (a 1 ) and the width of the hook type engaging element (B).
  • the cut (E) should be inserted at an angle of 35 to 90 degrees with respect to the length direction of the resin layer (R) (direction orthogonal to the arrow X direction in FIG. 3 (stretching direction)) in terms of engaging force and the like. preferable.
  • the hook-and-loop fastener (1) after stretching, it is possible to insert the hook-and-loop fastener (1) so that the linear portion (a 1 ) and the shape-retaining protruding row (a 2 ) intersect at an angle of 30 to 85 degrees instead of at a right angle. ) Is given elasticity in the width direction, which is preferable in reducing the breakage of the hook-and-loop fastener due to the force from the engaging element.
  • the linear portion (a 1 ) and the shape-retaining protrusion row (a 2 ) intersect at an angle of 30 to 85 degrees, the shape of the opening becomes a parallelogram.
  • the roots of the hook-type engaging element rows (K) and the shape-retaining protrusion rows (a 2 ) on the back surface of the resin layer (R) A cut is made up to the boundary with the resin layer (R), that is, the boundary with the linear portion (a 1 ) after stretching), and these hook-type engaging element columns (K) and the resin layer (R) It is preferable that all the resins constituting the shape-retaining protruding columns (a 2 ) are formed of a thermoplastic elastomer. As a result, the shape-preserving property is excellent, the resin layer is likely to be flattened, and it is easy to surely make a cut up to the base of the shape-retaining protrusion row (a 2 ).
  • the cut (E) may be inserted perpendicularly to the resin layer (R) surface, or may be inserted at a slight angle.
  • FIGS. 3 and 4 the case where the product is inserted vertically is described.
  • the cross-sectional shape of the linear portion (a 1 ) becomes a square or a rectangle, and when inserted at an angle, it becomes a parallelogram.
  • the dimensions, number, density, etc. of the hook type engaging element (B), the linear portion (a 1 ), and the shape-retaining protrusion row (a 2 ) described above are the average of 10 arbitrarily selected values. The value.
  • the sheet-shaped strip (20) having such a cut (E) is then stretched in the length direction (direction orthogonal to the arrow X direction in FIG. 3).
  • the stretching ratio a degree in which the length of the sheet-shaped strip (20) after stretching is 1.5 to 2.5 times the length of the original strip (20) is adopted.
  • the gap between the cuts is widened, and the resin layer (R) becomes a linear portion group layer (A 1 ) in which independent linear portions (a 1 ) are present in parallel with the same plane.
  • the row of hook type engaging elements (K) is changed from the row of independent hook type engaging elements (B) one by one.
  • the shape-retaining protruding rows (a 2 ) existing on the back surface of the resin layer (R) are not cut, the shape of the continuous rows is maintained even after stretching, and the linear portion is maintained. It works as a row of protrusions that fixes (a 1 ) and holds the sheet shape.
  • the distance between the cuts is 0.2 to 1.0 mm by stretching in terms of uniform dyeability, flexibility of the hook-and-loop fastener, shape resistance, and the like.
  • the shape-retaining projections Retsujo (a 2) is the cross-sectional shape is not changed by the stretching, the cross-sectional area from being stretched in the longitudinal direction is to be reduced in similar shape.
  • FIG. 1 schematically shows the shape after stretching.
  • the base sheet (A) is stretched on the back surface side with the linear portion group layer (A 1 ) which is an aggregate of the linear portions (a 1 ) generated from the resin layer (R) on the same plane. It is composed of a shape-retaining protrusion row group layer (A 2 ), which is an aggregate of the shape-retaining protrusion rows (a 2 ) on the same plane. Then, as a result of the stretching, the shape-retaining projection row (a 2 ) is stretched, is continuous in the length direction thereof, and is molecularly oriented. On the other hand, since the linear portion (a 1 ) is not stretched, it is almost the same as before stretching and is not molecularly oriented in the length direction thereof.
  • the shape-retaining protrusion row (a 2 ) has a shaft portion (C) and its shaft whose cross section in a plane perpendicular to the length direction rises from the linear portion group layer (A 1 ). It is preferable to have a shape having a bulging portion (D) existing in the middle or the tip of the portion. This has the advantage that it is not easily damaged by the applied force. Further, when the hook surface fastener (1) of the present invention is wound in a roll shape for dyeing, the hook type engaging element (B) on the front surface and the shape-retaining protrusion row (a 2 ) on the back surface in the wound state. Overlap.
  • the bulge (D) is present at the tip of the shaft (C), and the width of the bulge (D) is 1.5 to 4 times the width of the shaft (C). It is preferable to have a bulging portion (D).
  • the hook type engaging element (B) existing on the surface of the hook surface fastener (1) has a relatively low height and the hook surface fastener (1) is wound in a roll shape during dyeing.
  • the gap between the overlapping front and back surfaces tends to be narrow, but due to the presence of such shape-retaining protrusions (a 2 ) on the back surface, the front surface and the back surface when wound in a roll shape and The gap between the back surfaces is narrowed and the stain spots are eliminated.
  • the cross-sectional shape of the bulging portion (D) may be circular, elliptical, rectangular, or the like, and the cross-sectional shape of the shape-retaining protruding row (a 2 ) on the surface perpendicular to the length direction is mushroom. Any of a type, an umbrella type, a T-shape, a Y-shape, an inverted J-shape, an inverted L-shape, and the like may be used.
  • FIG. 1 shows a case where the cross-sectional shape of the bulging portion is oval and the cross-sectional shape on the surface perpendicular to the length direction of the shape-retaining protrusion row (a 2 ) is mushroom-shaped.
  • the height of the shape-retaining protrusions (a 2 ) is 0.4 to 1.0 mm, and the spread of the bulge (D) on both sides is 0.4 to 1.0 mm, respectively. It is preferable in order to maintain the gap distance between the overlapping front surface and the back surface of the hook surface fastener (1) wound at the time and prevent the occurrence of dyeing spots.
  • the cross-sectional area of the shape-retaining protrusion column (a 2 ) on the plane perpendicular to the length direction is 0.2 to 0.7 mm 2
  • the cross-sectional area of the bulging portion (D) is the shape-retaining protrusion.
  • a shape that is 40 to 60% of the total cross-sectional area of the row (a 2 ) maintains the strength of the hook hook-and-loop fastener (1) and the distance between the front and back surfaces when wound during dyeing. It is preferable to prevent the occurrence of spots.
  • the ratio of the height of the hook type engaging element (B) existing on the front surface side to the height of the shape-retaining protrusion row (a 2 ) existing on the back surface side is 1: 0.8.
  • the range of ⁇ 1: 0.98 is preferable, while the distance between both ends of the protruding portion of the hook type engaging element (B) and both sides of the bulging portion (D) of the shape-retaining protruding row (a 2 ).
  • the shape-retaining protrusions (a 2 ) are hook type in the state of being further wound during dyeing.
  • the range of 0.7: 1 to 0.95: 1 is preferable in order to prevent the gap between the front surface and the back surface from being depressed between the engaging elements (B) and causing dyeing spots.
  • the row of hook-type engaging elements (B) existing on the front surface and the shape-retaining protrusion row (a 2 ) existing on the back surface are back-to-back with the intermediate linear portion group layer (A 1 ) sandwiched between them. It may exist or may exist at a different position, but it exists back to back in order to prevent the hook hook-and-loop fastener (1) from being destroyed by a force from an engaging element or the like. Is preferable. That is, when a pulling force is applied to the hook type engaging element (B), the base of the hook type engaging element (B) is reinforced in the length direction by the molecularly oriented shape-retaining protrusions (a 2 ). It is possible to prevent destruction from being done.
  • the mesh-shaped hook-and-loop fastener (1) of the present invention is dyed as follows. Dyeing is performed by a badge type using a cheese dyeing device or an Overmeier type dyeing device. That is, a long state in which the mesh-shaped hook-and-loop fastener (1) of the present invention is wound in a roll shape, specifically, the mesh-shaped hook-and-loop fastener (1) of the present invention having a length of 50 to 300 m is rolled into a roll shape. Roll, place this roll on the partition plate, stack a plurality of such partition plates in the vertical direction, insert them into the dyeing kettle, and circulate the dye solution in the kettle to circulate the dye liquid in the hook surface fastener (1). And the dyeing solution are brought into contact with each other.
  • the hook-and-loop fastener (1) of the present invention has a mesh shape, as described above, not only from the top and bottom of the hook-and-loop fastener (1) wound in a roll shape, but also from the side surface having the opening (10). Since the dyeing liquid can enter and exit and the shape-retaining protruding rows (a 2 ) are projected on the back surface, even a wide hook-and-loop fastener (1) having a width of 40 mm or more can be used without stains. It has the advantage that the width of the hook-and-loop fastener (1) that can be dyed in a dark color and therefore can be dyed is not limited.
  • the present invention provides a wide dyed molded surface fastener, thus greatly expanding the range of applications.
  • an optimum dye is used according to the type of elastomer resin constituting the hook surface fastener (1), and in the case of polyester elastomer, which is the most preferable elastomer resin in the present invention, a disperse dye is used.
  • a disperse dye is used in the case of polyamide elastomer.
  • high temperature and high pressure dyeing using an acidic dye is performed. As a result, it is possible to dye uniformly and darkly without dyeing spots.
  • the hook type engaging element is used.
  • a hook-and-loop fastener (1) without dyeing spots, in which both (B) and the substrate sheet (A) have substantially the same hue, can be obtained.
  • a molded surface fastener having a bright fluorescent color suitable for sports equipment, children's products and the like can be obtained.
  • the dye used for dyeing in fluorescent color is a fluorescent dispersion dye for polyester fibers when the resin constituting the hook surface fastener (1) is a polyester elastomer, and when the resin constituting the hook surface fastener (1) is a polyamide elastomer.
  • Fluorescent acidic dyes for nylon fibers are preferable.
  • Such a dye is dissolved in an amount of 0.5 to 2% by weight in the molded surface fastener to be dyed, and the molded surface fastener is immersed in an aqueous solution at 110 to 150 ° C. containing a normal dyeing aid. It is preferable to dye for 20 to 60 minutes.
  • the mesh-shaped hook-and-loop fastener (1) of the present invention dyed in this way can be used for applications in which a normal hook-and-loop fastener is used, and among them, sports shoes, infant shoes, supporters, belts, and the like. It is suitably used in application fields where a vivid color tone and no color spots are highly required, or a bright and color spot-free fluorescent color is required.
  • a method of attaching the surface fastener at that time a method of attaching by sewing is preferable.
  • the dyed mesh hook-and-loop fastener (1) of the present invention is set in a mold, an elastomer resin is injected, and the hook-and-loop fastener (1) is integrated with the surface of the elastomer resin sheet. It can also be used in a method of manufacturing the sheet by so-called insert molding. Specifically, a mesh-shaped hook-and-loop fastener (1) is provided in a recess provided in the mold, and the hook-type engaging element (B) is recessed. It is possible to manufacture an elastomer resin sheet in which the mesh-shaped hook-and-loop fastener (1) is integrated on the surface by setting it so as to be on the bottom side and injecting the elastomer resin into the mold in that state.
  • the shape-retaining protrusion row group layer (A 2 ) is made to be an embedded element, and the hook-type engaging element (B) and the linear portion (a 1 ) of the mesh-shaped hook-and-loop fastener (1) are used. Is exposed from the seat surface, and the color tone of the hook type engaging element (B) and the linear portion (a 1 ) is different from that of the sheet, so that the hook has a bright color tone on the sheet.
  • the hook-and-loop fastener (1) will be lifted, and the mesh hook-and-loop fastener (1) will be reinforced by a sheet made of elastomer resin integrated on the back surface, making it more suitable as a stopper for sports shoes and children's shoes. It will be more suitable.
  • the hook type engaging element (B) and the linear portion (a 1 ) are to be exposed prior to the insert molding. It is preferable to coat the surface of 1 ) with silicone rubber or the like so that the hook type engaging element (B) and the linear portion (a 1 ) are not covered with the elast resin injected during insert molding. .. Then, after insert molding, silicon rubber and the like are removed.
  • an elastomer-based resin is preferable, and more preferably, because it does not significantly impair the excellent flexibility and profile of the mesh-shaped hook-and-loop fastener (1).
  • the same polyester elastomer or polyamide elastomer as the mesh-shaped hook-and-loop fastener (1) is used.
  • the thickness of the resin sheet obtained by insert molding is preferably in the range of 0.5 to 4 mm, particularly preferably in the range of 1.5 to 3.5 mm from the viewpoint of reinforcing effect and flexibility.
  • the entire back surface of the mesh-shaped hook-and-loop fastener (1) may be covered with an elastomer resin sheet, or only a part of the back surface of the mesh-shaped hook-and-loop fastener (1), for example, the vicinity of the ear portion may be covered with the elastomer resin sheet. You may.
  • the polyester elastomer or polyamide elastomer that is unlikely to tear from the perforations is used, and the effect of having a mesh structure is obtained. Therefore, it is possible to highly prevent tearing from the perforation, and therefore, as a method of attaching the hook-and-loop fastener, it is preferable to attach it to the fabric by sewing.
  • the sewing method either a sewing machine method or a hand-sewn method may be used.
  • the mesh-shaped hook-and-loop fastener (1) of the present invention is formed of an elastomer and has a mesh structure, so that it is extremely flexible and soft to the touch, and the engaging element is compared with a conventional hook-and-loop fastener. Because of its small size, the engagement gap is narrowed, and since it is dyed in a dark color and without color spots, it is suitably used for clothing, shoes, belts, supporters, and the like.
  • the engaging force was measured as the initial engaging force with respect to the tensile shear strength and the peeling strength when the loop woven surface fastener E40000 manufactured by Kuraray Fastening Co., Ltd. was used as the engaging partner.
  • the measuring method was in accordance with JIS L3416).
  • the number of samples at the time of measurement was 10, and the average value of 10 was used as the value itself.
  • the shape property of the hook-and-loop fastener was investigated by sensory evaluation.
  • Example 1 As a resin used for molding, a thermoplastic polyester elastomer (Hytrel manufactured by Toray DuPont Co., Ltd., product number 6377) is used, and the resin is extruded from an extrusion nozzle as shown in FIG. A sheet having a width of 72 mm having hook-type engaging element rows (K) on the front surface side of the resin layer as shown in 3 and shape-retaining protrusion rows (a 2 ) on the back surface side parallel to the length direction. A band-shaped body (20) was obtained. The number of hook-type engaging element rows (K) on the front surface and the number of protrusion row rows (a 2 ) for shape-retaining on the back surface are both 32/72 mm in the width direction of the strip (20). , The hook type engaging element row (K) and the shape-retaining protrusion row (a 2 ) exist back to back with the intermediate resin layer (R) sandwiched between them.
  • Hytrel manufactured by Toray DuPont Co., Ltd., product number 6377
  • the hook-type engaging element row (K) and the resin layer (R) on the surface of the 72 mm wide strip (20) are formed at an angle of 30 degrees from the width direction of the strip (20). Cuts were made at 4 mm intervals. There is no cut in the row row (a 2 ) for the shape-retaining protrusion row on the back surface side. Then, the strip-shaped body (20) having such a cut was then stretched twice. As a result, the hook-type engaging element rows (K) on the surface become rows of the hook-type engaging elements (B), and the resin layer (R) existing in the middle is in the direction orthogonal to the arrow in FIG.
  • the linear portion group layer (A 1 ) having a length (width of the base sheet (A)) of 70 mm along the direction orthogonal to the stretching direction was formed.
  • the shape-retaining protrusion row row (a 2 ) on the back surface side it was stretched and molecularly oriented in the length direction to form a shape-retaining protrusion row (a 2 ).
  • the obtained hook surface fastener (1) was a mesh-shaped hook surface fastener (1) having a width of 70 mm.
  • the substrate sheet (A) is formed by arranging linear portions (a 1 ) having a width of 70 mm and a thickness of 1.5 mm in parallel with a space of 0.5 mm between the same planes.
  • the shape-holding group layer (A 1 ) and the shape-retaining protrusion row (a 2 ) having a cross-sectional shape of a shaft portion (C) and a bulging portion (D) at the tip thereof are 2.4 mm in the same plane.
  • shape-retaining column Article group layer at intervals are formed side by side in parallel consist (a 2), the linear portion group layer (a 1) the shape-retaining column Article group layer on the back side of (a 2) Has an integrated structure, and the linear portion (a 1 ) and the shape-retaining projection row (a 2 ) intersect at an angle of 60 degrees, and the linear portion group layer (A 1 ) and the shape are formed at the intersection.
  • the holding row group layer (A 2 ) is integrated, and the hook type engaging element (B) having a height of 0.67 mm from the surface of the linear portion (a 1 ) has an engaging element density of 41 pieces / It was protruding at cm 2 .
  • the hook-and-loop engaging element of the obtained hook-and-loop fastener has a cross-sectional shape of an arrowhead, and has a cross-sectional area of 0.15 mm 2 in a plane parallel to the linear portion (a 1 ) in the middle portion in the height direction.
  • the protruding length of the protruding portion (M) from the stem portion (S) is 0.86 mm
  • the average thickness of the protruding portion (M) is 0.25 mm
  • the width of the stem portion (S) is 0.32 mm
  • the shape-retaining projection row (a 2 ) has a cross section in a plane perpendicular to the length direction at the shaft portion (C) rising from the linear portion group layer (A 1 ) and the tip of the shaft portion. It has a shape having a bulging portion (D), and the width of the bulging portion (D) is 2.5 times the width of the shaft portion (C).
  • the cross-sectional shape of the bulge (D) is elliptical, the cross-sectional shape of the plane perpendicular to the length direction is mushroom-shaped, and the height of the shape-retaining projection row (a 2 ) is 0.64 mm.
  • the spread of the bulge (D) to both sides is 0.81 mm
  • the cross-sectional area of the shape-retaining projection row (a 2 ) on the plane perpendicular to the length direction is 0.42 mm 2
  • the cross-sectional area of is 47% of the total cross-sectional area of the shape-retaining protrusion row (a 2 )
  • the shape-retaining protrusion row (a 2 ) is per 1 cm in a direction perpendicular to the plane fastener stretching direction.
  • the hook hook-and-loop fastener (1) thus obtained was then dyed. That is, the long hook-and-loop fastener (1) having a width of 70 mm and a length of 50 m obtained by the above method is wound in a roll shape in the state of the width to form a roll shape having a diameter of 30 cm. An object is placed on a partition plate, stacked in three stages with an interval of 1 cm between the partition plates, inserted into an Overmeyer type dyeing device, and a dyeing solution in which a dark blue dispersed dye is dissolved is circulated in this dyeing device. The dyeing treatment was carried out at 135 ° C. for 60 minutes.
  • the hook surface fastener (1) taken out from the dyeing apparatus is the inner layer portion and the outer layer portion of the roll, the place placed in the dyeing apparatus, the upper and lower places of the hook surface fastener (1), and the hook type engaging element (B). , Regardless of the linear part (a 1 ), the shape-retaining protrusion row (a 2 ), etc., all of them were deep navy blue and were dyed vividly without stains.
  • this hook-and-loop fastener (1) is excellent in the initial engaging force and the engaging force after repeating engagement / peeling 1000 times, and is also excellent in shapetability because it is flexible. It was. Further, as a result of observing the state of the hook surface fastener (1) of the present invention and the loop surface fastener of the engaging partner after repeating the engagement and disengagement 1000 times, neither of them was damaged at all.
  • This hook-and-loop fastener (1) is sewn onto the tongue piece as a joining member to join the left and right tongue pieces of the foot pocket on the instep of the sneaker, and a woven loop hook-and-loop fastener is attached to the other tongue piece.
  • the hook-and-loop fastener was not destroyed and had the initial engagement strength, and the hook-and-loop fastener (1) of the present invention made the tongue piece stiff. There was no deterioration in comfort or feel.
  • the cuts to be made in the front surface of the sheet-shaped strip (20) are made only in the hook type engaging element row (K), and the resin layer (R) and the shape-retaining protrusion row on the back surface side.
  • a hook-and-loop fastener was manufactured in the same manner as in Example 1 except that a cut (E) was not made in the row line (a 2 ).
  • the base sheet of the obtained hook-and-loop fastener is in the state of a continuous resin sheet without a break, and a hook type engaging element rises from the front surface of such a resin sheet, and a row of protrusions for shape retention is integrated on the back surface. It is in a state of being.
  • Comparative Example 2 A mesh-shaped hook-and-loop fastener was manufactured in the same manner as in Example 1 except that the resin forming the hook-and-loop fastener was changed from polyester elastomer to polyethylene terephthalate. Then, the obtained mesh-shaped hook-and-loop fastener was dyed in the same manner as in Example 1. The dyed mesh-shaped hook-and-loop fastener was slightly inferior to that of Example 1 in terms of dark color, but was far superior to that of Comparative Example 1 in terms of dyeing spots.
  • the cross section of the shape-retaining projection row (a 2 ) in a plane perpendicular to the length direction is 0.35 mm in height consisting only of the shaft portion rising from the sheet-like material group layer (A 1 ).
  • a mesh-shaped hook-and-loop fastener was manufactured in the same manner as in Example 1 except that the shape was changed to a rod-shaped protrusion shape having a cross-sectional area of 0.21 mm 2 (that is, there was no bulge), and further dyeing was performed in the same manner as in Example 1. (Example 2).
  • the obtained dyed hook-and-loop fastener is the inner layer part and the outer layer part of the roll, the place placed in the dyeing device, the upper and lower places of the hook surface fastener, the hook type engaging element (B), and the linear part (a 1). ), The shape-retaining projection row (a 2 ), etc., were all dyed vividly in a deep dark blue color without stains.
  • the performance of this dyed hook surface fastener as a surface fastener was investigated. The results are shown in Table 1 below.
  • This hook-and-loop fastener was equivalent to that of Example 1 in the initial engaging force, but was slightly inferior to that of Example 1 in terms of elasticity, and when engaging and peeling were repeated, the shape-retaining protrusion There was a concern that the rows would be broken.
  • the angle of the cut (E) to be inserted into the hook-type engaging element row (K) and the resin layer (R) on the surface of the strip (2) is set in the width direction of the strip (20).
  • a mesh-shaped hook-and-loop fastener is used in the same manner as in the first embodiment except that the linear portion (a 1 ) and the shape-retaining protruding row (a 2 ) form an angle of 90 degrees). It was produced and further dyed in the same manner as in Example 1 (Example 3).
  • the obtained dyed hook-and-loop fastener was dyed in a dark color and was excellent without dyeing spots, as in the case of Example 1 above.
  • the performance of this dyed hook surface fastener as a surface fastener was investigated. The results are shown in Table 1 below.
  • This hook hook-and-loop fastener was equivalent to that of Example 1 in terms of engaging force, but was slightly inferior to that of Example 1 in terms of elasticity, particularly elasticity in the width direction, and a large tensile force in the width direction. It has been found that there is a possibility of a problem in terms of the durability of the hook-and-loop fastener when it is used in an application in which
  • the obtained dyed hook-and-loop fastener was dyed in a dark color and was excellent without dyeing spots, as in the case of Example 1 above.
  • the performance of this dyed hook surface fastener as a surface fastener was investigated. The results are shown in Table 1 below.
  • This hook-and-loop fastener was equivalent to that of Example 1 in terms of engaging force, but was slightly inferior to that of Example 1 in terms of elasticity and shape-reachability.
  • the height and width of the portion where the hook-and-loop engaging element row (K) on the surface of the nozzle used for extrusion molding is extruded and the size of the protruding portion are changed.
  • the height is 2.0 times that of the hook, but the cross-sectional shape is similar to that of Example 1, and the mesh hook is the same as that of Example 1 except that the cut interval is doubled.
  • a hook-and-loop fastener was manufactured and further dyed in the same manner as in Example 1 (Example 5).
  • the dyed state of the obtained hook-and-loop fastener was the same as that of Example 1, and was dyed uniformly and darkly without dyeing spots. Then, the performance of this dyed hook surface fastener as a surface fastener was investigated. The results are shown in Table 1 below.
  • This hook-and-loop fastener was superior to that of Example 1 in terms of initial engaging force, but there were a few cases where the protruding portion of the hook-type engaging element was cut by repeated engagement and disengagement.
  • the shapeability was also slightly inferior to that of Example 1. In other respects, it was as good as that of Example 1.
  • Example 6 In the above-mentioned Example 1, in the same manner as in Example 1 except that the resin used for molding is changed from the polyester elastomer to the polyamide elastomer (Amilan U141 manufactured by Toray Industries, Inc.), the surface of the hook-type engaging element (B) is arranged in the middle. A molded surface fastener having a sheet-like material (a 1 ) and a shape-retaining projection row (a 2 ) on the back surface side was manufactured. These dimensions and densities were exactly the same as those in Example 1.
  • the molded surface fastener thus obtained was wound in a roll shape and placed on a partition plate in the same manner as in Example 1, and dyed in the same dyeing apparatus as in Example 1.
  • a dyeing solution in which a crimson acid dye was dissolved was circulated in this dyeing apparatus, and a dyeing treatment was performed at 125 ° C. for 60 minutes.
  • the molded surface fastener taken out from the dyeing apparatus includes an inner layer portion and an outer layer portion of the roll, a place placed in the dyeing apparatus, a place above and below the hook surface fastener, a hook type engaging element (B), and a linear part (a). 1), regardless of the site of such shape-retaining projection rows (a 2), both dark crimson, dyeing spots without were vividly dyed.
  • Table 1 the performance of this dyed molded surface fastener as a surface fastener was investigated. The results are shown in Table 1 below.
  • this molded hook-and-loop fastener was excellent in initial engaging force as in Example 1, but was slightly inferior to that in Example 1 in terms of shape-reachability. It was. Further, as a result of observing the states of the molded surface fastener and the loop surface fastener of the engaging partner after repeating the engagement and disengagement 1000 times, neither of them was damaged at all. As in the case of Example 1, this molded surface fastener was used as a joining member for joining the left and right tongue pieces of the foot insertion portion in the instep portion of the sneaker.
  • the hook-and-loop fastener has the initial engagement strength without being destroyed, and by attaching this molded hook-and-loop fastener, the tongue piece becomes hard and comfortable to wear. It was excellent without any deterioration in the texture or texture.
  • Example 7 Example 1 except that the obtained molded hook-and-loop fastener is dyed at 135 ° C. for 60 minutes using a yellow fluorescent dispersion dye [Kiwaron Polyster YG-10GF (manufactured by Kiwa Chemical Industry Co., Ltd.)] as a dye.
  • a molded surface fastener dyed in a fluorescent color was obtained.
  • Nikka Sun Salt SN-130 and Nikka Sun Salt 1200 were used as dyeing aids in an amount of 1.0% by weight based on the molded surface fastener.
  • the dyed molded surface fastener was dyed uniformly and without spots on both the front and back surfaces in a bright yellow fluorescent color.
  • the performance of this molded surface fastener as a surface fastener was extremely excellent, which was almost the same as that of Example 1.
  • the surface fastener Does not break and has the initial engagement strength, and by attaching this molded hook-and-loop fastener, the tongue piece becomes stiff, which makes it uncomfortable to wear and feels worse. It was excellent.
  • Hook-and-loop fastener 10 Opening 20:
  • Strip A Base sheet A 1 : Linear part group layer A 2 : Shape-retaining protrusion row group layer a 1 : Linear part a 2 : Shape-retaining protrusion row
  • Strip B Hook type engaging element S: Stem portion M: Protruding portion
  • C Shape-retaining protrusion row shaft shaft D: Shape-retaining protrusion row bulge
  • E Cut F: Hook-type engaging element slit Part
  • G Slit part H for resin layer: Slit part K for protrusions for shape retention: Row R for hook type engaging element: Resin layer

Landscapes

  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Treatment Of Fiber Materials (AREA)
PCT/JP2020/020018 2019-05-21 2020-05-20 メッシュ状フック面ファスナーおよびその染色方法 Ceased WO2020235613A1 (ja)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006522645A (ja) * 2003-03-25 2006-10-05 スリーエム イノベイティブ プロパティズ カンパニー マルチヘッドフック
JP2007508107A (ja) * 2003-10-14 2007-04-05 スリーエム イノベイティブ プロパティズ カンパニー フックファスナーおよび製造方法
JP4991285B2 (ja) * 2003-02-28 2012-08-01 スリーエム イノベイティブ プロパティズ カンパニー ポリマーネット
JP2018153450A (ja) * 2017-03-17 2018-10-04 クラレファスニング株式会社 高視認性面ファスナー

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4991285B2 (ja) * 2003-02-28 2012-08-01 スリーエム イノベイティブ プロパティズ カンパニー ポリマーネット
JP2006522645A (ja) * 2003-03-25 2006-10-05 スリーエム イノベイティブ プロパティズ カンパニー マルチヘッドフック
JP2007508107A (ja) * 2003-10-14 2007-04-05 スリーエム イノベイティブ プロパティズ カンパニー フックファスナーおよび製造方法
JP2018153450A (ja) * 2017-03-17 2018-10-04 クラレファスニング株式会社 高視認性面ファスナー

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