WO2016031623A1

WO2016031623A1 - Hook-and-loop fastener female member

Info

Publication number: WO2016031623A1
Application number: PCT/JP2015/073105
Authority: WO
Inventors: 翔内田; 生島　伸祐; 公平武田; 荒川　正章
Original assignee: 日東電工株式会社
Priority date: 2014-08-26
Filing date: 2015-08-18
Publication date: 2016-03-03
Also published as: TW201618687A

Abstract

Provided is a hook-and-loop fastener female member having an engaging layer using a nonwoven fabric, and exhibiting excellent engaging force with a hook-and-loop fastener male member. A hook-and-loop fastener female member according to the present invention and having an engaging layer capable of engaging a male member, wherein the engaging layer contains a nonwoven fabric comprising fibers, the density of the nonwoven fabric in the engaging layer is 5-110 kg/m³, and the diameter of the fibers is 15-60μm.

Description

Hook-and-loop female member

The present invention relates to a hook-and-loop female member.

Various surface fasteners have been proposed as members of articles such as sanitary goods such as diapers and masks (see, for example, Patent Documents 1 and 2). When a hook-and-loop female member is used, for example, in a diaper, a hook-and-loop male member (typically having a hook for engagement) that is generally attached to the front surface of the waist portion of the diaper and fixed to the side surface of the diaper. ) To complete the hook-and-loop fastener. A hook-and-loop fastener is required to be removable many times.

In recent years, non-woven fabric has been adopted for many of the engagement layers of hook-and-loop fastener female members (layers that can engage with hooks for hook-and-loop fastener male members) used in sanitary goods (especially disposable diapers, supporters and masks). Has been.

However, the hook-and-loop fastener female member having the engagement layer using the conventional nonwoven fabric has insufficient engagement force with the hook-and-loop fastener male member, and in particular, the shear stress is low and the peel strength is often low. Disposable diapers and the like have a problem of slippage when worn or after excretion.

Special table 2009-527315 JP 2010-125337 A

The present invention has been made to solve the above-described conventional problems, and an object of the present invention is a hook-and-loop fastener female member having an engagement layer employing a non-woven fabric, and the engagement with the hook-and-loop fastener male member. The object is to provide a hook-and-loop female member that is excellent in resultant force.

The surface fastener female member of the present invention is
A hook-and-loop female member having an engaging layer engageable with a male member,
The engagement layer comprises a nonwoven fabric of fibers;
The density of the nonwoven fabric in the engagement layer is 5 kg / m ³ to 110 kg / m ³ ;
The diameter of the fiber is 15 μm to 60 μm.

In a preferred embodiment, the fiber is at least one selected from polyolefin fibers, polyester fibers, and composite fibers of two or more resins.

In a preferred embodiment, the polyolefin fiber is a polypropylene fiber.

In a preferred embodiment, the composite fiber of the two or more kinds of resins is a crimpable fiber.

In a preferred embodiment, the crimpable fiber is a crimpable fiber having a core-sheath structure.

In a preferred embodiment, the sheath part of the core-sheath structure has a polyethylene resin.

In a preferred embodiment, the core of the core-sheath structure has a polyethylene terephthalate resin.

In a preferred embodiment, the density of the nonwoven fabric in the engagement layer is 8 kg / m ³ to 50 kg / m ³ .

In a preferred embodiment, the density of the nonwoven fabric in the engagement layer is 70 kg / m ³ to 100 kg / m ³ .

In a preferred embodiment, the fiber has a diameter of 15 μm to 40 μm.

In a preferred embodiment, the fiber has a diameter of 20 μm to 40 μm.

In a preferred embodiment, the engagement layer is provided on the physical property layer.

In a preferred embodiment, the physical layer includes a nonwoven fabric of fibers, and the diameter of the fibers is 40 μm or less.

In a preferred embodiment, the physical property layer is a film, and the thickness of the film is 60 μm or less.

In a preferred embodiment, the surface of the fiber constituting the nonwoven fabric contained in the engagement layer and the surface of the physical property layer on the engagement layer side contain the same kind of polymer.

In a preferred embodiment, the polymer is a polyolefin.

In a preferred embodiment, the female member of the surface fastener of the present invention has a shear stress of 10 N or more.

In a preferred embodiment, the female member of the surface fastener of the present invention has a shear stress of 20 N or more.

The hook-and-loop fastener of the present invention includes the hook-and-loop fastener female member of the present invention and a hook-and-loop fastener male member engaged with the hook-and-loop fastener female member.

The sanitary article of the present invention has the surface fastener female member of the present invention.

It is a schematic sectional drawing of the hook_and_loop | surface fastener female member in preferable embodiment of this invention.

≪Hook fastener female member≫
The surface fastener female member of the present invention is a surface fastener female member having an engagement layer that can be engaged with a male member (also referred to as a mechanical hook member). Specifically, the engagement layer of the hook-and-loop fastener female member is a layer that can engage with the hook for engagement of the hook-and-loop fastener male member (or one having the same properties). What has the surface fastener female member of this invention and the surface fastener male member engaged with this surface fastener female member becomes a surface fastener.

The female fastener of the surface fastener of the present invention may have any appropriate other member as long as it has an engagement layer as long as the effects of the present invention are not impaired. As such other members, preferably, a physical property layer (mainly for supporting / reinforcing the engaging layer, fixing / adhering to other articles, or forming a printed layer on the female member) For example).

The thickness of the surface fastener female member of the present invention can be set to any appropriate thickness depending on the purpose. The thickness of the surface fastener female member of the present invention is typically preferably 0.2 mm to 5.0 mm, more preferably 0.3 mm to 4.0 mm, and further preferably 0.5 mm. Is 3.0 mm, particularly preferably 0.5 mm to 2.0 mm. In addition, in this invention, the thickness of a hook_and_loop | surface fastener female member (nonwoven fabric) is measured based on the method mentioned later.

FIG. 1 is a schematic cross-sectional view of a hook-and-loop female member according to a preferred embodiment of the present invention. In FIG. 1, the surface fastener female member 100 has an engagement layer 10 and a physical property layer 20.

The engagement layer includes a fiber nonwoven fabric. The engagement layer may be only one layer or two or more layers. The engagement layer is preferably made of only a fiber nonwoven fabric.

1 type of the nonwoven fabric of the fiber contained in an engagement layer may be sufficient, and 2 or more types may be sufficient as it.

Examples of the nonwoven fabric of fibers contained in the engagement layer include, for example, a spunbond nonwoven web, a fluffed nonwoven fabric (for example, a nonwoven fabric obtained by a thermal bond method, an adhesive bonding method, a spunlace method, an air-through method), a melt blown nonwoven web, Spunlace nonwoven web, spunbond meltblown spunbond nonwoven web, spunbond meltblown meltblown spunbond nonwoven web, non-bonded nonwoven web, electrospun nonwoven web, flashspun nonwoven web (eg DuPont TYVEKTM) And carded non-woven fabric.

The nonwoven fabric of fibers included in the engagement layer may include fibers that are uniform structures, and may include bicomponent structures such as core-sheath structures, side-by-side structures, sea-island structures, and other two-component structures. . For details of the nonwoven fabric, see, for example, “Nonwoven Fabric Primer and Reference Sampler”, E.I. A. You can refer to Vaughn, Association of the Nonwoven Fabrics Industry, 3rd edition (1992).

Arbitrary appropriate fiber can be employ | adopted for the fiber which comprises the nonwoven fabric contained in an engagement layer in the range which does not impair the effect of this invention. For example, it may include polyolefin fibers such as polypropylene, polyethylene, polyester, polyamide, polyurethane, elastomer, rayon, cellulose, acrylic, copolymers thereof, or blends thereof, or mixtures thereof. Such a fiber is preferably at least one selected from polyolefin fibers, polyester fibers, and composite fibers of two or more resins from the viewpoint that the effects of the present invention can be more manifested.

Examples of polyolefin fibers include polypropylene fibers, polyethylene fibers, α-olefin copolymer fibers, and the like. The polyolefin fiber is preferably a polypropylene fiber in that the effect of the present invention can be more manifested.

Examples of the polyester fiber include polyethylene terephthalate (PET) fiber, polylactic acid fiber, and polyglycolic acid fiber. The polyester fiber is preferably a polyethylene terephthalate (PET) fiber from the viewpoint that the effects of the present invention can be more manifested.

Examples of the composite fibers of two or more kinds of resins include crimpable fibers, heat resistant fibers, and hollow fibers as described later. The composite fiber of two or more kinds of resins preferably has a crimpable fiber having a core-sheath structure, a crimpable fiber having a side-by-side structure, and a core-sheath structure, in that the effects of the present invention can be more manifested. Examples include heat resistant fibers. Specifically, for example, a polyester resin (preferably a polyethylene terephthalate (PET) resin) or a polyolefin resin (preferably a polypropylene resin) is a core part, a polyolefin resin (preferably a polypropylene resin, a polyethylene resin, more preferably, Polyethylene resin) in the sheath, crimped fiber having a core-sheath structure, polyester resin (preferably polyethylene terephthalate (PET) resin), polyolefin resin (preferably polypropylene resin) and polyolefin resin (preferably polypropylene) Examples thereof include crimpable fibers in which a resin, a polyethylene resin, and more preferably a polyethylene resin) form a side-by-side structure. In addition, in the heat resistant fiber which has a core-sheath structure, when it has polyethylene resin in a sheath part, since the surface of this heat resistant fiber tends to be rough, it is preferable at the point from which a hook_and_loop | surface fastener male member becomes easy to get caught. Moreover, in the heat-resistant fiber having a core-sheath structure, when a polyethylene terephthalate (PET) resin is included in the core part, the breaking strength of the heat-resistant fiber is increased and the engagement force is increased.

The fibers constituting the nonwoven fabric included in the engagement layer may contain any appropriate other component as long as the effects of the present invention are not impaired. Examples of such other components include other polymers, tackifiers, plasticizers, deterioration inhibitors, pigments, dyes, antioxidants, antistatic agents, lubricants, foaming agents, heat stabilizers, and light stabilizers. An agent, an inorganic filler, an organic filler, etc. are mentioned. These may be only one type or two or more types. The content ratio of other components in the fibers constituting the nonwoven fabric included in the engagement layer is preferably 10% by weight or less, more preferably 7% by weight or less, and further preferably 5% by weight or less, Particularly preferred is 2% by weight or less, and most preferred is 1% by weight or less.

In the surface fastener female member of the present invention, when emphasis is placed on the engaging force, the density of the nonwoven fabric in the engaging layer is 5 kg / m ³ to 110 kg / m ³ , preferably 5 kg / m ³ to 100 kg / m. ³ , more preferably 5 kg / m ³ to 80 kg / m ³ , still more preferably 5 kg / m ³ to 70 kg / m ³ , and particularly preferably 5 kg / m ³ to 60 kg / m ³ . And most preferably 8 kg / m ³ to 50 kg / m ³ . In the hook-and-loop female member of the present invention, the hook-and-loop fastener female member having excellent engaging force with the hook-and-loop male member can be provided when the density of the nonwoven fabric in the engaging layer is within the above range. In particular, in the hook-and-loop fastener female member of the present invention, the density of the nonwoven fabric in the engagement layer is within the above range, so that as the engagement force with the hook-and-loop fastener male member, both high shear stress and high peel strength can be achieved, Disposable diapers and the like can effectively eliminate the problem of slippage when worn or after excretion. In the hook-and-loop female member of the present invention, if the density of the nonwoven fabric in the engagement layer is too low outside the above range, the hook-and-loop fastener male member becomes difficult to catch or the productivity is poor and the cost is high. There is a fear. If the density of the non-woven fabric in the engaging layer is too high outside the above range, the non-woven fabric fibers of the surface fastener female member are densely packed, so that the engaging portion of the surface fastener male member is in the surface fastener female member. It may become difficult to be inserted into the battery and an excellent engagement force may not be exhibited.

In the surface fastener female member of the present invention, when emphasis is placed on fuzzing, the density of the nonwoven fabric in the engagement layer is 5 kg / m ³ to 110 kg / m ³ , preferably 20 kg / m ³ to 110 kg / m ^3. More preferably, it is 20 kg / m ³ to 100 kg / m ³ , further preferably 30 kg / m ³ to 100 kg / m ³ , and particularly preferably 50 kg / m ³ to 100 kg / m ³ . Most preferably, it is 70 kg / m ³ to 100 kg / m ³ . In the hook-and-loop female member of the present invention, the density of the nonwoven fabric in the engagement layer is within the above range, so that fluffing when peeling after engaging with the hook-and-loop male member can be effectively suppressed. A female member may be provided. In the surface fastener female member of the present invention, if the density of the non-woven fabric in the engagement layer is too low outside the above range, fluffing may easily occur when it is peeled off after being engaged with the surface fastener male member. If the density of the non-woven fabric in the engaging layer is too high outside the above range, the non-woven fabric fibers of the surface fastener female member are densely packed, so that the engaging portion of the surface fastener male member is in the surface fastener female member. There is a risk that it will be difficult to be charged.

In the present invention, the density (kg / m ³ ) of the nonwoven fabric in the engagement layer is calculated from the basis weight (Xg / m ² ) of the nonwoven fabric and the thickness (Ymm) of the nonwoven fabric measured based on the method described later. Value. More specifically, the density (kg / m ³ ) of the nonwoven fabric in the engagement layer is calculated as X / Y (kg / m ³ ).

In the surface fastener female member of the present invention, the fiber diameter of the nonwoven fabric in the engagement layer (hereinafter, also simply referred to as fiber diameter) is 15 μm to 60 μm, preferably 18 μm to 60 μm, more preferably 18 μm. Is preferably 50 μm, more preferably 18 μm to 40 μm, particularly preferably 20 μm to 40 μm, and most preferably 30 μm to 40 μm. In the hook-and-loop female member of the present invention, a hook-and-loop female member excellent in engaging force with the hook-and-loop fastener male member can be provided by keeping the diameter of the nonwoven fabric fibers in the engagement layer within the above range. In particular, in the surface fastener female member of the present invention, when the diameter of the nonwoven fabric fiber in the engagement layer is within the above range, both high shear stress and high peel strength can be achieved as the engagement force with the surface fastener male member. In a disposable diaper or the like, the problem of slipping off can be effectively solved at the time of wearing or after excretion. In the hook-and-loop female member of the present invention, if the diameter of the nonwoven fabric fiber in the engagement layer is too small outside the above range, the shear stress may be reduced particularly as the engaging force with the hook-and-loop fastener male member. Moreover, in the surface fastener female member of the present invention, if the diameter of the nonwoven fabric fiber in the engagement layer is too small outside the above range, the surface fastener female member surface may be fuzzy. If the fiber diameter of the nonwoven fabric in the engagement layer is too large outside the above range, it may be difficult to engage with the surface fastener male member, or the production speed may be reduced and the cost may be increased. In addition, in this invention, the diameter (fiber diameter) of the fiber of the nonwoven fabric in an engagement layer is measured based on the method mentioned later.

In the surface fastener female member of the present invention, the basis weight of the nonwoven fabric in the engagement layer is preferably 20 g / m ² to 60 g / m ² , more preferably 20 g / m ² to 50 g / m ² . More preferably 20 g / m ² to 40 g / m ² , particularly preferably 25 g / m ² to 40 g / m ² , and most preferably 30 g / m ² to 40 g / m ² . In the hook-and-loop female member of the present invention, the hook-and-loop fastener female member that is superior in engaging force with the hook-and-loop fastener male member can be provided by the basis weight of the nonwoven fabric in the engaging layer being within the above range.

In the surface fastener female member of the present invention, the nonwoven fabric fibers in the engagement layer may be crimped fibers. As the crimpable fiber, for example, a fiber containing two components having different freezing points having a side-by-side structure or an unevenly arranged core-sheath structure, and when the phase change from a molten state to a solid state, Examples thereof include fibers that develop a fine coiled crimp with a relatively small radius when a high component is first solidified and contracted.

As the material for the physical layer, any appropriate material can be adopted as long as the effects of the present invention are not impaired. In view of the fact that the effects of the present invention can be more manifested, the material of the physical layer is preferably a fiber nonwoven fabric or film.

When the material of the physical property layer is a fiber nonwoven fabric, the nonwoven fabric may be one kind or two or more kinds.

When the material of the physical layer is a fiber nonwoven fabric, examples of the nonwoven fabric include a spunbond nonwoven web, a fluffed nonwoven fabric (for example, a thermal bond method, an adhesive bonding method, a spunlace method, a nonwoven fabric obtained by an air-through method), Meltblown nonwoven web, spunlace nonwoven web, spunbond meltblown spunbond nonwoven web, spunbond meltblown meltblown spunbond nonwoven web, non-bonded nonwoven web, electrospun nonwoven web, flashspun nonwoven web (e.g. DuPont TYVEKTM), carded nonwoven fabric, and the like.

When the material of the physical property layer is a fiber nonwoven fabric, the nonwoven fabric is preferably a nonwoven fabric obtained by a spunbond method, a nonwoven fabric obtained by a melt blow method, or a nonwoven fabric combining them (spun melt method).

When the material of the physical layer is a non-woven fabric of fibers, the non-woven fabric may contain fibers that are uniform structures, such as a core-sheath structure, a side-by-side structure, a sea-island structure, and other two-component structures. May include body. For details of the nonwoven fabric, see, for example, “Nonwoven Fabric Primer and Reference Sampler”, E.I. A. You can refer to Vaughn, Association of the Nonwoven Fabrics Industry, 3rd edition (1992).

When the material of the physical layer is a non-woven fabric of fibers, any appropriate fibers can be adopted as the fibers as long as the effects of the present invention are not impaired. For example, it may include polyolefin fibers such as polypropylene, polyethylene, polyester, polyamide, polyurethane, elastomer, rayon, cellulose, acrylic, copolymers thereof, or blends thereof, or mixtures thereof. Such a fiber is preferably at least one selected from polyolefin fibers, polyester fibers, and composite fibers of two or more resins from the viewpoint that the effects of the present invention can be more manifested.

When the material of the physical layer is a film, any appropriate material can be adopted as the material of the film as long as the effects of the present invention are not impaired. Such a material is preferably an unstretched polypropylene film, a stretched polypropylene film, a polyethylene film, or the like having a thickness of 10 μm to 60 μm, from the viewpoint that the effects of the present invention can be more manifested.

When the physical property layer is a nonwoven fabric of fibers, the basis weight thereof is preferably 10 g / m ² to 40 g / m ² , more preferably 10 g / m ² to 30 g / m ² , and still more preferably It is 10 g / m ² to 25 g / m ² , and particularly preferably 10 g / m ² to 20 g / m ² . When the basis weight of the nonwoven fabric in the physical property layer falls within the above range, shrinkage deformation in the width direction is less likely to occur during web handling, cost competitiveness is good, printability is good, and print see-through is good. Yes, the adhesive coating is easy, the applied adhesive is difficult to ooze out to the engagement surface, and the flexibility is good.

When the physical layer is a nonwoven fabric of fibers, the diameter of the fibers is preferably 40 μm or less, more preferably 1 μm to 40 μm, still more preferably 1 μm to 30 μm, and particularly preferably 1 μm to 30 μm. It is 25 μm, and most preferably 1 μm to 20 μm. When the physical layer is a non-woven fabric of fibers, the diameter of the fibers is within the above range, so that shrinkage deformation in the width direction is difficult to occur during web handling, cost competitiveness is excellent, printability is good, and printing The see-through property is good, the pressure-sensitive adhesive coating is easy, the coated pressure-sensitive adhesive hardly oozes out to the engagement surface, and the flexibility is good. When the physical property layer is a non-woven fabric of fibers, if the diameter of the fibers is too large beyond the above range, shrinkage deformation in the width direction is likely to occur during web handling, resulting in poor cost competitiveness, poor printability, and adhesive coating. It is difficult to work, and there is a risk that the applied pressure-sensitive adhesive may ooze out to the engagement surface.

In addition, when the physical property layer is a nonwoven fabric of fibers, a laminate of nonwoven fabrics of different fibers (for example, a laminate of spunbond nonwoven web / meltblown nonwoven web / spunbond nonwoven web) may be used. In this case, the aforementioned “fiber diameter” refers to the fiber diameter of each nonwoven fabric.

When the physical layer is a film, the thickness is preferably 60 μm or less, more preferably 10 μm to 50 μm, still more preferably 10 μm to 40 μm, and particularly preferably 10 μm to 30 μm. Most preferably, it is 15 to 25 μm. When the physical property layer is a film, the thickness is within the above range, so that shrinkage deformation in the width direction is less likely to occur during web handling, cost competitiveness is good, see-through property of printing is good, and adhesive coating Is easy and has good flexibility. When the physical property layer is a film, if the thickness is too large outside the above range, the cost competitiveness is inferior, the see-through property of printing deteriorates, and the flexibility may deteriorate.

In the surface fastener female member of the present invention, preferably, the surface of the fiber constituting the nonwoven fabric included in the engagement layer and the surface of the physical property layer on the side of the engagement layer contain the same kind of polymer. The engagement layer after the surface of the fiber constituting the non-woven fabric included in the engagement layer and the surface of the physical property layer on the side of the engagement layer contain the same type of polymer so that the surface fastener male member is engaged and then peeled off It is possible to provide a female hook-and-loop fastener member that more effectively suppresses the fluffing. Here, the “surface of the fiber constituting the nonwoven fabric included in the engagement layer” may be the surface of the fiber, and for example, a sheath portion in a fiber having a core-sheath structure corresponds to this.

When the surface of the fiber constituting the nonwoven fabric contained in the engagement layer and the surface of the physical property layer on the side of the engagement layer include the same type of polymer, the polymer may be any appropriate as long as the effects of the present invention are not impaired. Various polymers may be employed. Such a polymer is preferably a polyolefin. The engagement layer after the surface of the fiber constituting the nonwoven fabric contained in the engagement layer and the surface of the physical property layer on the side of the engagement layer contain the same type of polyolefin, and after the surface fastener male member is engaged and peeled off The hook-and-loop fastener female member that more effectively suppresses the fluffing can be provided.

The hook-and-loop female member of the present invention can achieve both high shear stress and high peel strength as the engaging force with the hook-and-loop male member, and effectively eliminates the problem of slippage when wearing or after excretion in disposable diapers. It can be resolved.

In the surface fastener female member of the present invention, the shear stress described in detail later is preferably 8N or more, more preferably 10N or more, further preferably 15N or more, particularly preferably 20N or more, and most preferably. Is 24N or more. In reality, the upper limit of the shear stress is preferably 100 N or less in consideration of use in sanitary goods. When the shear stress of the hook-and-loop fastener female member of the present invention falls within the above range, the hook-and-loop fastener female member of the present invention is excellent in engagement force with the hook-and-loop fastener male member.

The surface fastener female member of the present invention has a peel strength (first time) described in detail later, preferably 0.2 N or more, more preferably 0.5 N or more, and further preferably 0.8 N or more. Especially preferably, it is 1.0 N or more. In reality, the upper limit of the peel strength (first time) is preferably 10 N or less in consideration of use in hygiene products. When the peel strength (first time) of the hook-and-loop fastener female member of the present invention is within the above range, the hook-and-loop fastener female member of the present invention is excellent in engaging force with the hook-and-loop male member.

The surface fastener female member of the present invention has a peel strength (fourth time) described in detail later, preferably 0.2 N or more, more preferably 0.5 N or more, further preferably 0.8 N or more, Especially preferably, it is 1.0 N or more. In reality, the upper limit of the peel strength (fourth) is preferably 10 N or less in consideration of use in hygiene products. When the peel strength (fourth time) of the hook-and-loop fastener female member of the present invention is within the above range, the hook-and-loop fastener female member of the present invention is excellent in engaging force with the hook-and-loop male member.

≪Method for manufacturing hook-and-loop female member of the present invention≫
As one of the preferable manufacturing methods of the surface fastener female member of this invention, a raw fabric nonwoven fabric is laminated | stacked, the embossing process by a pattern roll is arbitrary appropriate process temperature (for example, 160 degreeC), arbitrary appropriate linear pressures. (For example, 160 N / mm) at any appropriate processing speed (for example, 10 m / min) to obtain a desired hook-and-loop female member. The used pattern has, for example, an embossed portion having any appropriate width (for example, 1 mm width), one side is a square having an arbitrary appropriate length (for example, 10 mm per side), and the flow direction of the nonwoven fabric And the sides are arranged to be 45 degrees, for example.

≪Use of hook-and-loop female member of the present invention≫
The hook-and-loop fastener female member of the present invention can be used for any appropriate article that can effectively use the effects of the present invention. A typical example of such an article is a sanitary product. That is, the sanitary article of the present invention has the hook-and-loop fastener female member of the present invention. Examples of such sanitary goods include diapers (particularly disposable diapers), supporters, masks, and the like.

Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to these examples. In addition, the test and evaluation method in an Example etc. are as follows. Moreover, unless otherwise indicated, a part means a weight part and% means weight%.

<Shear stress>
The obtained surface fastener female member was cut into 5 cm × 5 cm, and the physical layer surface of the cut surface fastener female member was fixed to a stainless steel metal plate with a double-sided tape. On the other hand, a male member of 25 mm × 13 mm having a paper guide (a commercially available mechanical hook member for a hook-and-loop fastener) is prepared, and the female member is so arranged that the 25 mm side and the flow direction of the engagement layer are parallel to each other. It was allowed to stand on top, and a 0.7 kg roller was laminated once at a speed of 300 mm / min and pressure-bonded thereon. Thereafter, with the above guidance, the force required to peel the male member from the female member was measured by pulling at a speed of 300 mm / min in the TD direction of the engagement layer. AG-20kNG manufactured by Shimadzu Corporation was used as the measuring machine, and the distance between chucks was 60 mm.

<Peel strength>
The obtained surface fastener female member was cut into 5 cm × 5 cm. On the other hand, a 25 mm × 13 mm male member (a commercially available mechanical hook member for a hook-and-loop fastener) having a guide of a polyethylene film having a thickness of 60 μm is prepared, and the flow direction of the 25 mm side and the engagement layer are parallel to each other. As such, it was allowed to stand on the female member, and a 0.7 kg roller was laminated once at a speed of 300 mm / min and pressure-bonded thereon. Thereafter, the above guidance is chucked on the upper side of the measuring machine, the surface fastener is chucked on the lower side of the measuring machine, and the engagement layer is pulled in the TD direction at a speed of 300 mm / min (T-type peeling). The force required to be peeled was measured. AG-20kNG manufactured by Shimadzu Corporation was used as the measuring machine, and the distance between chucks was 60 mm. This operation was repeated a total of 4 times, the first time being the peel strength (first time) and the fourth time being the peel strength (fourth time).

<Evaluation of fluff>
The surface of the engagement layer nonwoven fabric after the peel strength evaluation was visually observed to evaluate fuzz.
A: Less fuzz after repeated peeling four times.
◯: There is much fuzz after repeated peeling four times, but there is little fuzz after repeated peeling.
X: There is much fuzz after peeling once.

<Fiber diameter measurement>
Using a digital microscope “VHX-1000” manufactured by Keyence Corporation, the surface of the nonwoven fabric was photographed at a magnification of 500 times, and the fiber diameter was measured with the image analysis software of the same machine with N = 5 or more. did. When the fiber diameter increased in the thickness direction (SMS, SSMMS, etc.), the same number of fiber diameters were measured at N = 5 or more, and the average value was taken as the fiber diameter. In addition, the part where thickness is locally thinned by heat welding etc., such as a spun bond and a spun melt, is not included.

<Nonwoven fabric thickness>
Using a digital microscope “VHX-1000” manufactured by Keyence Corporation, a cross section of the nonwoven fabric was photographed at a magnification of 100 times, and the thickness of the nonwoven fabric was measured with the image analysis software of the same machine. In the thickness measurement, in each of the upper part and the lower part of the cross section of the nonwoven fabric, parallel lines such that the intersections with the fibers are 10 points are the upper side and the lower side, respectively, and the length between the upper side and the lower side is the nonwoven fabric. Thickness.

[Example 1]
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. In addition, the nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spunbond method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spunbond method”. The results are shown in Table 1.

[Example 2]
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “air-through method” and used for the physical property layer. The non-woven fabric is a non-woven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 3
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “air-through method” and used for the physical property layer. The non-woven fabric is a non-woven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 4
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “spun bond method”. The used nonwoven fabric is a nonwoven fabric manufactured by the “spun bond method”. The results are shown in Table 1.

Example 5
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polypropylene resin) manufactured by the “air-through method” and used for the physical property layer. The nonwoven fabric is a nonwoven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 6
The raw fabric nonwoven fabric and film shown in Table 1 were laminated, and an embossing treatment with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spun bond method”, and the film used for the physical property layer is a polypropylene film having a thickness of 20 μm. The results are shown in Table 1.

Example 7
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a straight line with a pitch of 4 mm, and was arranged so that the flow direction of the nonwoven fabric and the straight line of the pattern were 90 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “air-through method” and used for the physical property layer. The non-woven fabric is a non-woven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 8
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a straight line with a pitch of 4 mm, and was arranged so that the flow direction of the nonwoven fabric and the straight line of the pattern were 90 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “air-through method” and used for the physical property layer. The non-woven fabric is a non-woven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 9
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a straight line with a pitch of 4 mm, and was arranged so that the flow direction of the nonwoven fabric and the straight line of the pattern were 90 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polypropylene resin) manufactured by the “air-through method” and used for the physical property layer. The nonwoven fabric is a nonwoven fabric produced by the “spun bond method”. The results are shown in Table 1.

Example 10
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a straight line with a pitch of 4 mm, and was arranged so that the flow direction of the nonwoven fabric and the straight line of the pattern were 90 degrees. In addition, the nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spunbond method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spunbond method”. The results are shown in Table 1.

Example 11
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. In addition, the nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spunbond method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spunbond method”. The results are shown in Table 1.

Example 12
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction of the nonwoven fabric and the side were 45 degrees. The nonwoven fabric used for the engagement layer is a crimped fiber nonwoven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polyethylene terephthalate resin) manufactured by the “air-through method” and used for the physical property layer. The non-woven fabric is a crimped fiber non-woven fabric having a core-sheath structure (sheath part: polyethylene resin, core part: polypropylene resin) manufactured by the “spun bond method”. The results are shown in Table 1.

[Comparative Example 1]
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction and side of the nonwoven fabric were 45 degrees. In addition, the nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spunbond method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spunbond method”.

[Comparative Example 2]
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a square with a side of 10 mm, and was arranged so that the flow direction and side of the nonwoven fabric were 45 degrees. The nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “spun melt method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spun bond method”.

[Comparative Example 3]
The raw fabric nonwoven fabric shown in Table 1 was laminated, and embossing with a pattern roll was performed at a processing temperature of 160 ° C., a linear pressure of 160 N / mm, and a processing speed of 10 m / min to obtain a surface fastener female member. The pattern used had an embossed portion with a width of 1 mm, was a straight line with a pitch of 4 mm, and was arranged so that the flow direction of the nonwoven fabric and the straight line of the pattern were 90 degrees. In addition, the nonwoven fabric used for the engagement layer is a nonwoven fabric manufactured by the “air through method”, and the nonwoven fabric used for the physical property layer is a nonwoven fabric manufactured by the “spun bond method”. The results are shown in Table 1.

The hook-and-loop female member of the present invention can be used for any appropriate article that can effectively use the effects of the present invention. A typical example of such an article is a sanitary product. Examples of such sanitary goods include diapers (particularly disposable diapers), supporters, masks, and the like.

100 hook-and-loop female member 10 engagement layer 20 physical property layer

Claims

A hook-and-loop female member having an engaging layer engageable with a male member,
The engagement layer comprises a nonwoven fabric of fibers;
The density of the nonwoven fabric in the engagement layer is 5 kg / m 3 to 110 kg / m 3 ;
The fiber has a diameter of 15 μm to 60 μm.
A hook-and-loop female member.
2. The surface fastener female member according to claim 1, wherein the fiber is at least one selected from polyolefin fibers, polyester fibers, and composite fibers of two or more resins.
The hook-and-loop female member according to claim 2, wherein the polyolefin fiber is a polypropylene fiber.
The surface fastener female member according to claim 2, wherein the composite fiber of the two or more kinds of resins is a crimpable fiber.
The female member for a hook-and-loop fastener according to claim 4, wherein the crimpable fiber is a crimpable fiber having a core-sheath structure.
The hook-and-loop female member according to claim 5, wherein the sheath portion of the core-sheath structure has a polyethylene resin.
The hook-and-loop fastener female member according to claim 5, wherein the core portion of the core-sheath structure has a polyethylene terephthalate resin.
2. The hook-and-loop female member according to claim 1, wherein the density of the nonwoven fabric in the engagement layer is 8 kg / m 3 to 50 kg / m 3 .
The hook-and-loop female member according to claim 1, wherein a density of the nonwoven fabric in the engagement layer is 70 kg / m 3 to 100 kg / m 3 .
2. The surface fastener female member according to claim 1, wherein the fiber has a diameter of 15 μm to 40 μm.
11. The surface fastener female member according to claim 10, wherein the fiber has a diameter of 20 μm to 40 μm.
The female member for a hook-and-loop fastener according to claim 1, wherein the engagement layer is provided on the physical property layer.
The female member for a hook-and-loop fastener according to claim 12, wherein the physical property layer includes a nonwoven fabric of fibers, and the diameter of the fibers is 40 µm or less.
The surface fastener female member according to claim 12, wherein the physical property layer is a film, and the thickness of the film is 60 µm or less.
The female member for a hook-and-loop fastener according to claim 12, wherein the surface of the fiber constituting the nonwoven fabric contained in the engagement layer and the surface of the physical property layer on the engagement layer side contain the same kind of polymer.
The female member for a hook-and-loop fastener according to claim 15, wherein the polymer is polyolefin.
The surface fastener female member according to claim 1, wherein the shear stress is 10 N or more.
The surface fastener female member according to claim 17, wherein the shear stress is 20 N or more.
A hook-and-loop fastener comprising the hook-and-loop fastener female member according to claim 1 and a hook-and-loop fastener male member engaged with the hook-and-loop fastener female member.
A sanitary article having the female hook-and-loop fastener according to claim 1.